{ "id": "/erbil/festivals/1933", "place": { "id": "95446", "slug": "erbil", "name": "Erbil", "region": "Iraq", "country": "IQ", "lat": 36.19117, "lon": 44.00943, "elevation_m": 429, "tz": "Asia/Baghdad" }, "year": 1933, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/erbil/festivals/1933/ekadashi?on=1933-01-07", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21787, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-01-06T13:19:13+03:00", "utc": "1933-01-06T10:19:13Z", "ms": -1167140447316.5383 }, "end": { "local": "1933-01-07T15:54:36+03:00", "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": "1933-01-06T13:19:13+03:00", "utc": "1933-01-06T10:19:13Z", "ms": -1167140447316.5383 }, "end": { "local": "1933-01-07T15:54:36+03:00", "utc": "1933-01-07T12:54:36Z", "ms": -1167044723967.3242 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-01-06", "window": { "start": { "local": "1933-01-06T07:16:06+03:00", "utc": "1933-01-06T04:16:06Z", "ms": -1167162233993.7993 }, "end": { "local": "1933-01-06T07:16:06+03:00", "utc": "1933-01-06T04:16:06Z", "ms": -1167162233993.7993 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-01-07", "window": { "start": { "local": "1933-01-07T07:16:07+03:00", "utc": "1933-01-07T04:16:07Z", "ms": -1167075833316.2964 }, "end": { "local": "1933-01-07T07:16:07+03:00", "utc": "1933-01-07T04:16:07Z", "ms": -1167075833316.2964 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:19 on Fri 6 Jan to 15:55 on Sat 7 Jan.", "fact": "1933-01-06T10:19:13Z → 1933-01-07T12:54:36Z" }, { "step": "kaala", "text": "Sunrise is at 07:16 on the 6th and 07:16 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21787 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Erbil, 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 Erbil, Putradā Ekādaśī 1933 falls on Saturday 7 January. Ekādaśī runs from 13:19 on Fri 6 Jan to 15:55 on Sat 7 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-01-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-09", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2328, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-01-08T18:20:02+03:00", "utc": "1933-01-08T15:20:02Z", "ms": -1166949597556.3528 }, "end": { "local": "1933-01-09T20:27:52+03:00", "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": "1933-01-08T18:20:02+03:00", "utc": "1933-01-08T15:20:02Z", "ms": -1166949597556.3528 }, "end": { "local": "1933-01-09T20:27:52+03:00", "utc": "1933-01-09T17:27:52Z", "ms": -1166855527619.2356 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-01-08", "window": { "start": { "local": "1933-01-08T17:05:26+03:00", "utc": "1933-01-08T14:05:26Z", "ms": -1166954074112.0093 }, "end": { "local": "1933-01-08T18:58:51+03:00", "utc": "1933-01-08T15:58:51Z", "ms": -1166947269290.9434 } }, "covered_min": 39, "window_min": 113, "qualifies": true }, { "local_date": "1933-01-09", "window": { "start": { "local": "1933-01-09T17:06:20+03:00", "utc": "1933-01-09T14:06:20Z", "ms": -1166867619804.4377 }, "end": { "local": "1933-01-09T18:59:37+03:00", "utc": "1933-01-09T15:59:37Z", "ms": -1166860822932.713 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:20 on Sun 8 Jan to 20:28 on Mon 9 Jan.", "fact": "1933-01-08T15:20:02Z → 1933-01-09T17:27:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:05–18:59 on the 8th, 17:06–19:00 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 39 of 113 minutes on the 8th and 113 of 113 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2328 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 1933: Monday 9 January.", "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": "1933-01-09", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-09", "confidence": "boundary" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 1933 falls on Monday 9 January. Trayodaśī runs from 18:20 on Sun 8 Jan to 20:28 on Mon 9 Jan and covers all of pradoṣa that evening. It also reaches the previous evening for 39 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/erbil/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": "/erbil/festivals/1933/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4001, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-02-12T05:03:51+03:00", "utc": "1933-02-12T02:03:51Z", "ms": -1163973368556.3562 } }, "span": { "of": "transit", "start": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 } }, "kaala": "sunset-day", "days": [ { "local_date": "1933-01-13", "window": { "start": { "local": "1933-01-12T17:09:08+03:00", "utc": "1933-01-12T14:09:08Z", "ms": -1166608251719.7832 }, "end": { "local": "1933-01-13T17:10:06+03:00", "utc": "1933-01-13T14:10:06Z", "ms": -1166521794123.2476 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-13T17:10:06+03:00", "utc": "1933-01-13T14:10:06Z", "ms": -1166521794123.2476 }, "end": { "local": "1933-01-14T17:11:04+03:00", "utc": "1933-01-14T14:11:04Z", "ms": -1166435335816.6384 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1933-01-13", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 16:03 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 17:10, and the day of the 14th ends at 17:11.", "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 12th and the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 4001 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Friday 13 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Erbil, 1933: Thursday 12 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": "1933-01-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-12", "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 Erbil, Bhogi 1933 falls on Thursday 12 January. It is kept the day before Pongal, which falls on Friday 13 January. The Sun enters Makara at 16:03 on Fri 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 12th and the 13th.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4001, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-02-12T05:03:51+03:00", "utc": "1933-02-12T02:03:51Z", "ms": -1163973368556.3562 } }, "span": { "of": "transit", "start": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 } }, "kaala": "sunset-day", "days": [ { "local_date": "1933-01-13", "window": { "start": { "local": "1933-01-12T17:09:08+03:00", "utc": "1933-01-12T14:09:08Z", "ms": -1166608251719.7832 }, "end": { "local": "1933-01-13T17:10:06+03:00", "utc": "1933-01-13T14:10:06Z", "ms": -1166521794123.2476 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-13T17:10:06+03:00", "utc": "1933-01-13T14:10:06Z", "ms": -1166521794123.2476 }, "end": { "local": "1933-01-14T17:11:04+03:00", "utc": "1933-01-14T14:11:04Z", "ms": -1166435335816.6384 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 16:03 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 17:10, and the day of the 14th ends at 17:11.", "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 12th and the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 4001 s" }, { "step": "ruling", "text": "Pongal, Erbil, 1933: Friday 13 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": "1933-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1933-01-13", "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 Erbil, Pongal 1933 falls on Friday 13 January. The Sun enters Makara at 16:03 on Fri 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 12th and the 13th.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28595, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-02-12T05:03:51+03:00", "utc": "1933-02-12T02:03:51Z", "ms": -1163973368556.3562 } }, "span": { "of": "transit", "start": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-01-13T16:03:25+03:00", "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+03:00", "utc": "1933-01-12T21:00:00Z", "ms": -1166583600000 }, "end": { "local": "1933-01-14T00:00:00+03:00", "utc": "1933-01-13T21:00:00Z", "ms": -1166497200000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-14T00:00:00+03:00", "utc": "1933-01-13T21:00:00Z", "ms": -1166497200000 }, "end": { "local": "1933-01-15T00:00:00+03:00", "utc": "1933-01-14T21:00:00Z", "ms": -1166410800000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 16:03 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 Erbil.", "fact": "civil-day: midnight-to-midnight · Asia/Baghdad" }, { "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 28595 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Erbil, 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": "1933-01-13", "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 Erbil, Makara Saṅkrānti 1933 falls on Friday 13 January. The Sun enters Makara at 16:03 on Fri 13 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4001, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-02-12T05:03:51+03:00", "utc": "1933-02-12T02:03:51Z", "ms": -1163973368556.3562 } }, "span": { "of": "transit", "start": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-01-13T16:03:25+03:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 } }, "kaala": "sunset-day", "days": [ { "local_date": "1933-01-13", "window": { "start": { "local": "1933-01-12T17:09:08+03:00", "utc": "1933-01-12T14:09:08Z", "ms": -1166608251719.7832 }, "end": { "local": "1933-01-13T17:10:06+03:00", "utc": "1933-01-13T14:10:06Z", "ms": -1166521794123.2476 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-13T17:10:06+03:00", "utc": "1933-01-13T14:10:06Z", "ms": -1166521794123.2476 }, "end": { "local": "1933-01-14T17:11:04+03:00", "utc": "1933-01-14T14:11:04Z", "ms": -1166435335816.6384 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1933-01-13", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 16:03 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 17:10, and the day of the 14th ends at 17:11.", "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 12th and the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 4001 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Friday 13 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Erbil, 1933: Saturday 14 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": "1933-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1933-01-14", "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 Erbil, Mattu Pongal 1933 falls on Saturday 14 January. It is kept the day after Pongal, which falls on Friday 13 January. The Sun enters Makara at 16:03 on Fri 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 12th and the 13th.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-01-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15053, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-01-15T01:18:39+03:00", "utc": "1933-01-14T22:18:39Z", "ms": -1166406080798.1965 }, "end": { "local": "1933-01-16T01:06:33+03:00", "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": "1933-01-15T01:18:39+03:00", "utc": "1933-01-14T22:18:39Z", "ms": -1166406080798.1965 }, "end": { "local": "1933-01-16T01:06:33+03:00", "utc": "1933-01-15T22:06:33Z", "ms": -1166320406907.9846 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-14T19:51:12+03:00", "utc": "1933-01-14T16:51:12Z", "ms": -1166425728362.6006 }, "end": { "local": "1933-01-14T19:51:12+03:00", "utc": "1933-01-14T16:51:12Z", "ms": -1166425728362.6006 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-01-15", "window": { "start": { "local": "1933-01-15T20:55:41+03:00", "utc": "1933-01-15T17:55:41Z", "ms": -1166335459408.792 }, "end": { "local": "1933-01-15T20:55:41+03:00", "utc": "1933-01-15T17:55:41Z", "ms": -1166335459408.792 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:19 on Sun 15 Jan to 01:07 on Mon 16 Jan.", "fact": "1933-01-14T22:18:39Z → 1933-01-15T22:06:33Z" }, { "step": "kaala", "text": "Moonrise is at 19:51 on the 14th and 20:56 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 15053 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 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 Erbil, Saṅkaṣṭa Caturthī 1933 falls on Sunday 15 January. Caturthī runs from 01:19 on Sun 15 Jan to 01:07 on Mon 16 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-01-22", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20662, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-01-21T15:39:02+03:00", "utc": "1933-01-21T12:39:02Z", "ms": -1165836058130.918 }, "end": { "local": "1933-01-22T12:56:43+03:00", "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": "1933-01-21T15:39:02+03:00", "utc": "1933-01-21T12:39:02Z", "ms": -1165836058130.918 }, "end": { "local": "1933-01-22T12:56:43+03:00", "utc": "1933-01-22T09:56:43Z", "ms": -1165759397211.6965 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-01-21", "window": { "start": { "local": "1933-01-21T07:12:49+03:00", "utc": "1933-01-21T04:12:49Z", "ms": -1165866431030.2725 }, "end": { "local": "1933-01-21T07:12:49+03:00", "utc": "1933-01-21T04:12:49Z", "ms": -1165866431030.2725 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-01-22", "window": { "start": { "local": "1933-01-22T07:12:20+03:00", "utc": "1933-01-22T04:12:20Z", "ms": -1165780059524.9546 }, "end": { "local": "1933-01-22T07:12:20+03:00", "utc": "1933-01-22T04:12:20Z", "ms": -1165780059524.9546 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:39 on Sat 21 Jan to 12:57 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 21st and 07:12 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 20662 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Erbil, 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 Erbil, Ṣaṭtilā Ekādaśī 1933 falls on Sunday 22 January. Ekādaśī runs from 15:39 on Sat 21 Jan to 12:57 on Sun 22 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-01-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25963, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-01-23T10:07:31+03:00", "utc": "1933-01-23T07:07:31Z", "ms": -1165683148811.6682 }, "end": { "local": "1933-01-24T07:19:11+03:00", "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": "1933-01-23T10:07:31+03:00", "utc": "1933-01-23T07:07:31Z", "ms": -1165683148811.6682 }, "end": { "local": "1933-01-24T07:19:11+03:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-01-23", "window": { "start": { "local": "1933-01-23T17:20:14+03:00", "utc": "1933-01-23T14:20:14Z", "ms": -1165657186233.9119 }, "end": { "local": "1933-01-23T19:11:02+03:00", "utc": "1933-01-23T16:11:02Z", "ms": -1165650537669.326 } }, "covered_min": 111, "window_min": 111, "qualifies": true }, { "local_date": "1933-01-24", "window": { "start": { "local": "1933-01-24T17:21:17+03:00", "utc": "1933-01-24T14:21:17Z", "ms": -1165570723222.2524 }, "end": { "local": "1933-01-24T19:11:52+03:00", "utc": "1933-01-24T16:11:52Z", "ms": -1165564087585.071 } }, "covered_min": 0, "window_min": 111, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:08 on Mon 23 Jan to 07:19 on Tue 24 Jan.", "fact": "1933-01-23T07:07:31Z → 1933-01-24T04:19:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:20–19:11 on the 23rd, 17:21–19:12 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 111 of 111 minutes on the 23rd and 0 of 111 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 25963 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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 Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Monday 23 January. Trayodaśī runs from 10:08 on Mon 23 Jan to 07:19 on Tue 24 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-24", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 473, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-01-24T07:19:11+03:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "end": { "local": "1933-01-25T04:40:15+03:00", "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": "1933-01-24T07:19:11+03:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "end": { "local": "1933-01-25T04:40:15+03:00", "utc": "1933-01-25T01:40:15Z", "ms": -1165529984890.249 } }, "kaala": "arunodaya", "days": [ { "local_date": "1933-01-24", "window": { "start": { "local": "1933-01-24T05:20:29+03:00", "utc": "1933-01-24T02:20:29Z", "ms": -1165613970564.1025 }, "end": { "local": "1933-01-24T07:11:18+03:00", "utc": "1933-01-24T04:11:18Z", "ms": -1165607321999.5166 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "1933-01-25", "window": { "start": { "local": "1933-01-25T05:20:08+03:00", "utc": "1933-01-25T02:20:08Z", "ms": -1165527591580.574 }, "end": { "local": "1933-01-25T07:10:44+03:00", "utc": "1933-01-25T04:10:44Z", "ms": -1165520955943.3926 } }, "covered_min": 0, "window_min": 111, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:19 on Tue 24 Jan to 04:40 on Wed 25 Jan.", "fact": "1933-01-24T04:19:11Z → 1933-01-25T01:40:15Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:20–07:11 on the 24th, 05:20–07:11 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 111 minutes on the 24th and 0 of 111 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither dawn qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 473 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Erbil, 1933: Tuesday 24 January.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-01-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-24", "confidence": "boundary" } ], "quote": "In Erbil, Yama Tarpaṇa 1933 falls on Tuesday 24 January. Caturdaśī runs from 07:19 on Tue 24 Jan to 04:40 on Wed 25 Jan, and reaches aruṇodaya on neither day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-01-24", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14415, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-01-24T07:19:11+03:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "end": { "local": "1933-01-25T04:40:15+03:00", "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": "1933-01-24T07:19:11+03:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "end": { "local": "1933-01-25T04:40:15+03:00", "utc": "1933-01-25T01:40:15Z", "ms": -1165529984890.249 } }, "kaala": "nishita", "days": [ { "local_date": "1933-01-23", "window": { "start": { "local": "1933-01-23T23:51:46+03:00", "utc": "1933-01-23T20:51:46Z", "ms": -1165633694116.7144 }, "end": { "local": "1933-01-24T00:39:46+03:00", "utc": "1933-01-23T21:39:46Z", "ms": -1165630814116.7144 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-01-24", "window": { "start": { "local": "1933-01-24T23:52:00+03:00", "utc": "1933-01-24T20:52:00Z", "ms": -1165547279582.8225 }, "end": { "local": "1933-01-25T00:40:00+03:00", "utc": "1933-01-24T21:40:00Z", "ms": -1165544399582.8225 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:19 on Tue 24 Jan to 04:40 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: 23:52–00:40 on the 23rd, 23:52–00:40 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 14415 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 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 Erbil, Śivarātri 1933 falls on Tuesday 24 January. Caturdaśī runs from 07:19 on Tue 24 Jan to 04:40 on Wed 25 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35282, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-01-28T22:29:13+03:00", "utc": "1933-01-28T19:29:13Z", "ms": -1165206647009.8804 }, "end": { "local": "1933-01-29T22:36:04+03:00", "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": "1933-01-28T22:29:13+03:00", "utc": "1933-01-28T19:29:13Z", "ms": -1165206647009.8804 }, "end": { "local": "1933-01-29T22:36:04+03:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-01-28", "window": { "start": { "local": "1933-01-28T11:53:11+03:00", "utc": "1933-01-28T08:53:11Z", "ms": -1165244808884.275 }, "end": { "local": "1933-01-28T12:41:11+03:00", "utc": "1933-01-28T09:41:11Z", "ms": -1165241928884.275 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-01-29", "window": { "start": { "local": "1933-01-29T11:53:22+03:00", "utc": "1933-01-29T08:53:22Z", "ms": -1165158397507.1992 }, "end": { "local": "1933-01-29T12:41:22+03:00", "utc": "1933-01-29T09:41:22Z", "ms": -1165155517507.1992 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:29 on Sat 28 Jan to 22:36 on Sun 29 Jan.", "fact": "1933-01-28T19:29:13Z → 1933-01-29T19:36:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 28th, 11:53–12:41 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 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35282 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Erbil, 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 Erbil, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1933 falls on Sunday 29 January. Caturthī runs from 22:29 on Sat 28 Jan to 22:36 on Sun 29 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11641, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-01-28T22:29:13+03:00", "utc": "1933-01-28T19:29:13Z", "ms": -1165206647009.8804 }, "end": { "local": "1933-01-29T22:36:04+03:00", "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": "1933-01-28T22:29:13+03:00", "utc": "1933-01-28T19:29:13Z", "ms": -1165206647009.8804 }, "end": { "local": "1933-01-29T22:36:04+03:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-01-28", "window": { "start": { "local": "1933-01-28T17:25:31+03:00", "utc": "1933-01-28T14:25:31Z", "ms": -1165224869394.1733 }, "end": { "local": "1933-01-28T19:15:12+03:00", "utc": "1933-01-28T16:15:12Z", "ms": -1165218288050.2432 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "1933-01-29", "window": { "start": { "local": "1933-01-29T17:26:34+03:00", "utc": "1933-01-29T14:26:34Z", "ms": -1165138405699.701 }, "end": { "local": "1933-01-29T19:16:01+03:00", "utc": "1933-01-29T16:16:01Z", "ms": -1165131838532.7666 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:29 on Sat 28 Jan to 22:36 on Sun 29 Jan.", "fact": "1933-01-28T19:29:13Z → 1933-01-29T19:36:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:26–19:15 on the 28th, 17:27–19:16 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 110 minutes on the 28th and 109 of 109 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 11641 s" }, { "step": "ruling", "text": "Tila Caturthī, Erbil, 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 Erbil, Tila Caturthī 1933 falls on Sunday 29 January. Caturthī runs from 22:29 on Sat 28 Jan to 22:36 on Sun 29 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35682, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-01-29T22:36:04+03:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "end": { "local": "1933-01-30T23:27:46+03:00", "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": "1933-01-29T22:36:04+03:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "end": { "local": "1933-01-30T23:27:46+03:00", "utc": "1933-01-30T20:27:46Z", "ms": -1165030334096.2847 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-01-29", "window": { "start": { "local": "1933-01-29T11:53:22+03:00", "utc": "1933-01-29T08:53:22Z", "ms": -1165158397507.1992 }, "end": { "local": "1933-01-29T12:41:22+03:00", "utc": "1933-01-29T09:41:22Z", "ms": -1165155517507.1992 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-01-30", "window": { "start": { "local": "1933-01-30T11:53:33+03:00", "utc": "1933-01-30T08:53:33Z", "ms": -1165071986966.6245 }, "end": { "local": "1933-01-30T12:41:33+03:00", "utc": "1933-01-30T09:41:33Z", "ms": -1165069106966.6245 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:36 on Sun 29 Jan to 23:28 on Mon 30 Jan.", "fact": "1933-01-29T19:36:04Z → 1933-01-30T20:27:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 29th, 11:54–12:42 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 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35682 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Erbil, 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 Erbil, Śrī Pañcamī 1933 falls on Monday 30 January. Pañcamī runs from 22:36 on Sun 29 Jan to 23:28 on Mon 30 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35682, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-01-29T22:36:04+03:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "end": { "local": "1933-01-30T23:27:46+03:00", "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": "1933-01-29T22:36:04+03:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "end": { "local": "1933-01-30T23:27:46+03:00", "utc": "1933-01-30T20:27:46Z", "ms": -1165030334096.2847 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-01-29", "window": { "start": { "local": "1933-01-29T11:53:22+03:00", "utc": "1933-01-29T08:53:22Z", "ms": -1165158397507.1992 }, "end": { "local": "1933-01-29T12:41:22+03:00", "utc": "1933-01-29T09:41:22Z", "ms": -1165155517507.1992 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-01-30", "window": { "start": { "local": "1933-01-30T11:53:33+03:00", "utc": "1933-01-30T08:53:33Z", "ms": -1165071986966.6245 }, "end": { "local": "1933-01-30T12:41:33+03:00", "utc": "1933-01-30T09:41:33Z", "ms": -1165069106966.6245 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:36 on Sun 29 Jan to 23:28 on Mon 30 Jan.", "fact": "1933-01-29T19:36:04Z → 1933-01-30T20:27:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 29th, 11:54–12:42 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 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35682 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Erbil, 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 Erbil, Vasanta Pañcamī 1933 falls on Monday 30 January. Pañcamī runs from 22:36 on Sun 29 Jan to 23:28 on Mon 30 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7874, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-02-01T01:00:15+03:00", "utc": "1933-01-31T22:00:15Z", "ms": -1164938384605.5164 }, "end": { "local": "1933-02-02T03:05:13+03:00", "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": "1933-02-01T01:00:15+03:00", "utc": "1933-01-31T22:00:15Z", "ms": -1164938384605.5164 }, "end": { "local": "1933-02-02T03:05:13+03:00", "utc": "1933-02-02T00:05:13Z", "ms": -1164844486906.5093 } }, "kaala": "arunodaya", "days": [ { "local_date": "1933-02-01", "window": { "start": { "local": "1933-02-01T05:17:00+03:00", "utc": "1933-02-01T02:17:00Z", "ms": -1164922980333.1401 }, "end": { "local": "1933-02-01T07:05:58+03:00", "utc": "1933-02-01T04:05:58Z", "ms": -1164916442186.6445 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "1933-02-02", "window": { "start": { "local": "1933-02-02T05:16:27+03:00", "utc": "1933-02-02T02:16:27Z", "ms": -1164836613055.8914 }, "end": { "local": "1933-02-02T07:05:10+03:00", "utc": "1933-02-02T04:05:10Z", "ms": -1164830089736.7163 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 01:00 on Wed 1 Feb to 03:05 on Thu 2 Feb.", "fact": "1933-01-31T22:00:15Z → 1933-02-02T00:05:13Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:17–07:06 on the 1st, 05:16–07:05 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 109 of 109 minutes on the 1st and 0 of 109 on the 2nd.", "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 7874 s" }, { "step": "ruling", "text": "Ratha Saptamī, Erbil, 1933: Wednesday 1 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-02-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-01", "confidence": "determinate" } ], "quote": "In Erbil, Ratha Saptamī 1933 falls on Wednesday 1 February. Saptamī runs from 01:00 on Wed 1 Feb to 03:05 on Thu 2 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-02-06", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12342, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-02-05T10:28:20+03:00", "utc": "1933-02-05T07:28:20Z", "ms": -1164558699580.186 }, "end": { "local": "1933-02-06T12:34:59+03:00", "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": "1933-02-05T10:28:20+03:00", "utc": "1933-02-05T07:28:20Z", "ms": -1164558699580.186 }, "end": { "local": "1933-02-06T12:34:59+03:00", "utc": "1933-02-06T09:34:59Z", "ms": -1164464700908.1965 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-02-05", "window": { "start": { "local": "1933-02-05T07:02:38+03:00", "utc": "1933-02-05T04:02:38Z", "ms": -1164571041752.6694 }, "end": { "local": "1933-02-05T07:02:38+03:00", "utc": "1933-02-05T04:02:38Z", "ms": -1164571041752.6694 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-02-06", "window": { "start": { "local": "1933-02-06T07:01:45+03:00", "utc": "1933-02-06T04:01:45Z", "ms": -1164484695442.9182 }, "end": { "local": "1933-02-06T07:01:45+03:00", "utc": "1933-02-06T04:01:45Z", "ms": -1164484695442.9182 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:28 on Sun 5 Feb to 12:35 on Mon 6 Feb.", "fact": "1933-02-05T07:28:20Z → 1933-02-06T09:34:59Z" }, { "step": "kaala", "text": "Sunrise is at 07:03 on the 5th and 07:02 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 12342 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Erbil, 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 Erbil, Jayā Ekādaśī 1933 falls on Monday 6 February. Ekādaśī runs from 10:28 on Sun 5 Feb to 12:35 on Mon 6 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 444, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-02-06T12:34:59+03:00", "utc": "1933-02-06T09:34:59Z", "ms": -1164464700908.1965 }, "end": { "local": "1933-02-07T14:14:37+03:00", "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": "1933-02-06T12:34:59+03:00", "utc": "1933-02-06T09:34:59Z", "ms": -1164464700908.1965 }, "end": { "local": "1933-02-07T14:14:37+03:00", "utc": "1933-02-07T11:14:37Z", "ms": -1164372322668.3667 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-02-06", "window": { "start": { "local": "1933-02-06T11:54:23+03:00", "utc": "1933-02-06T08:54:23Z", "ms": -1164467136716.3958 }, "end": { "local": "1933-02-06T12:42:23+03:00", "utc": "1933-02-06T09:42:23Z", "ms": -1164464256716.3958 } }, "covered_min": 7, "window_min": 48, "qualifies": true }, { "local_date": "1933-02-07", "window": { "start": { "local": "1933-02-07T11:54:27+03:00", "utc": "1933-02-07T08:54:27Z", "ms": -1164380732869.7095 }, "end": { "local": "1933-02-07T12:42:27+03:00", "utc": "1933-02-07T09:42:27Z", "ms": -1164377852869.7095 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 12:35 on Mon 6 Feb to 14:15 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: 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": "Dvādaśī must be present during madhyāhna. It covers 7 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": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 444 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Erbil, 1933: Monday 6 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": "1933-02-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-06", "confidence": "determinate" } ], "quote": "In Erbil, Bhīṣma Dvādaśī 1933 falls on Monday 6 February. Dvādaśī runs from 12:35 on Mon 6 Feb to 14:15 on Tue 7 Feb and covers 7 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-02-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8073, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-02-07T14:14:37+03:00", "utc": "1933-02-07T11:14:37Z", "ms": -1164372322668.3667 }, "end": { "local": "1933-02-08T15:22:34+03:00", "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": "1933-02-07T14:14:37+03:00", "utc": "1933-02-07T11:14:37Z", "ms": -1164372322668.3667 }, "end": { "local": "1933-02-08T15:22:34+03:00", "utc": "1933-02-08T12:22:34Z", "ms": -1164281845732.9475 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-02-07", "window": { "start": { "local": "1933-02-07T17:36:05+03:00", "utc": "1933-02-07T14:36:05Z", "ms": -1164360235150.5178 }, "end": { "local": "1933-02-07T19:23:15+03:00", "utc": "1933-02-07T16:23:15Z", "ms": -1164353804751.4873 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1933-02-08", "window": { "start": { "local": "1933-02-08T17:37:07+03:00", "utc": "1933-02-08T14:37:07Z", "ms": -1164273772518.4412 }, "end": { "local": "1933-02-08T19:24:02+03:00", "utc": "1933-02-08T16:24:02Z", "ms": -1164267358198.1597 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:15 on Tue 7 Feb to 15:23 on Wed 8 Feb.", "fact": "1933-02-07T11:14:37Z → 1933-02-08T12:22:34Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:36–19:23 on the 7th, 17:37–19:24 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 107 of 107 minutes on the 7th and 0 of 107 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 8073 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 1933: Tuesday 7 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": "1933-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-07", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 1933 falls on Tuesday 7 February. Trayodaśī runs from 14:15 on Tue 7 Feb to 15:23 on Wed 8 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/1933/pradosha-vrata?on=1933-02-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11695, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-02-09T15:57:27+03:00", "utc": "1933-02-09T12:57:27Z", "ms": -1164193352614.192 }, "end": { "local": "1933-02-10T16:00:26+03:00", "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": "1933-02-09T15:57:27+03:00", "utc": "1933-02-09T12:57:27Z", "ms": -1164193352614.192 }, "end": { "local": "1933-02-10T16:00:26+03:00", "utc": "1933-02-10T13:00:26Z", "ms": -1164106774261.9902 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-02-09", "window": { "start": { "local": "1933-02-09T11:54:32+03:00", "utc": "1933-02-09T08:54:32Z", "ms": -1164207927612.3325 }, "end": { "local": "1933-02-09T12:42:32+03:00", "utc": "1933-02-09T09:42:32Z", "ms": -1164205047612.3325 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-02-10", "window": { "start": { "local": "1933-02-10T11:54:34+03:00", "utc": "1933-02-10T08:54:34Z", "ms": -1164121526181.8223 }, "end": { "local": "1933-02-10T12:42:34+03:00", "utc": "1933-02-10T09:42:34Z", "ms": -1164118646181.8223 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:57 on Thu 9 Feb to 16:00 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: 11:55–12:43 on the 9th, 11:55–12:43 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 11695 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Erbil, 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 Erbil, Māghī Pūrṇimā 1933 falls on Friday 10 February. Pūrṇimā runs from 15:57 on Thu 9 Feb to 16:00 on Fri 10 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-02-13", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26894, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-02-13T13:29:30+03:00", "utc": "1933-02-13T10:29:30Z", "ms": -1163856630165.2068 }, "end": { "local": "1933-02-14T11:58:34+03:00", "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": "1933-02-13T13:29:30+03:00", "utc": "1933-02-13T10:29:30Z", "ms": -1163856630165.2068 }, "end": { "local": "1933-02-14T11:58:34+03:00", "utc": "1933-02-14T08:58:34Z", "ms": -1163775685772.5264 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-02-13", "window": { "start": { "local": "1933-02-13T20:57:44+03:00", "utc": "1933-02-13T17:57:44Z", "ms": -1163829736043.213 }, "end": { "local": "1933-02-13T20:57:44+03:00", "utc": "1933-02-13T17:57:44Z", "ms": -1163829736043.213 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-02-14", "window": { "start": { "local": "1933-02-14T22:05:54+03:00", "utc": "1933-02-14T19:05:54Z", "ms": -1163739246415.7158 }, "end": { "local": "1933-02-14T22:05:54+03:00", "utc": "1933-02-14T19:05:54Z", "ms": -1163739246415.7158 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:29 on Mon 13 Feb to 11:59 on Tue 14 Feb.", "fact": "1933-02-13T10:29:30Z → 1933-02-14T08:58:34Z" }, { "step": "kaala", "text": "Moonrise is at 20:58 on the 13th and 22:06 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 26894 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 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 Erbil, Saṅkaṣṭa Caturthī 1933 falls on Monday 13 February. Caturthī runs from 13:29 on Mon 13 Feb to 11:59 on Tue 14 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-02-20", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25565, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-02-19T23:40:51+03:00", "utc": "1933-02-19T20:40:51Z", "ms": -1163301549238.442 }, "end": { "local": "1933-02-20T21:35:40+03:00", "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": "1933-02-19T23:40:51+03:00", "utc": "1933-02-19T20:40:51Z", "ms": -1163301549238.442 }, "end": { "local": "1933-02-20T21:35:40+03:00", "utc": "1933-02-20T18:35:40Z", "ms": -1163222659863.3252 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-02-20", "window": { "start": { "local": "1933-02-20T06:46:55+03:00", "utc": "1933-02-20T03:46:55Z", "ms": -1163275984714.443 }, "end": { "local": "1933-02-20T06:46:55+03:00", "utc": "1933-02-20T03:46:55Z", "ms": -1163275984714.443 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-02-21", "window": { "start": { "local": "1933-02-21T06:45:43+03:00", "utc": "1933-02-21T03:45:43Z", "ms": -1163189656721.5352 }, "end": { "local": "1933-02-21T06:45:43+03:00", "utc": "1933-02-21T03:45:43Z", "ms": -1163189656721.5352 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:41 on Sun 19 Feb to 21:36 on Mon 20 Feb.", "fact": "1933-02-19T20:40:51Z → 1933-02-20T18:35:40Z" }, { "step": "kaala", "text": "Sunrise is at 06:47 on the 20th and 06:46 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 25565 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Erbil, 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 Erbil, Vijayā Ekādaśī 1933 falls on Monday 20 February. Ekādaśī runs from 23:41 on Sun 19 Feb to 21:36 on Mon 20 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21220, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-02-22T17:59:36+03:00", "utc": "1933-02-22T14:59:36Z", "ms": -1163062823663.7393 }, "end": { "local": "1933-02-23T16:39:01+03:00", "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": "1933-02-22T17:59:36+03:00", "utc": "1933-02-22T14:59:36Z", "ms": -1163062823663.7393 }, "end": { "local": "1933-02-23T16:39:01+03:00", "utc": "1933-02-23T13:39:01Z", "ms": -1162981258694.5898 } }, "kaala": "nishita", "days": [ { "local_date": "1933-02-22", "window": { "start": { "local": "1933-02-22T23:53:17+03:00", "utc": "1933-02-22T20:53:17Z", "ms": -1163041603222.9937 }, "end": { "local": "1933-02-23T00:41:17+03:00", "utc": "1933-02-22T21:41:17Z", "ms": -1163038723222.9937 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-02-23", "window": { "start": { "local": "1933-02-23T23:53:09+03:00", "utc": "1933-02-23T20:53:09Z", "ms": -1162955211386.401 }, "end": { "local": "1933-02-24T00:41:09+03:00", "utc": "1933-02-23T21:41:09Z", "ms": -1162952331386.401 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:00 on Wed 22 Feb to 16:39 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: 23:53–00:41 on the 22nd, 23:53–00:41 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 21220 s" }, { "step": "ruling", "text": "Mahāśivarātri, Erbil, 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 Erbil, Mahāśivarātri 1933 falls on Wednesday 22 February. Caturdaśī runs from 18:00 on Wed 22 Feb to 16:39 on Thu 23 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-02-22", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 404, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-02-21T19:40:16+03:00", "utc": "1933-02-21T16:40:16Z", "ms": -1163143184492.325 }, "end": { "local": "1933-02-22T17:59:36+03:00", "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": "1933-02-21T19:40:16+03:00", "utc": "1933-02-21T16:40:16Z", "ms": -1163143184492.325 }, "end": { "local": "1933-02-22T17:59:36+03:00", "utc": "1933-02-22T14:59:36Z", "ms": -1163062823663.7393 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-02-21", "window": { "start": { "local": "1933-02-21T17:50:18+03:00", "utc": "1933-02-21T14:50:18Z", "ms": -1163149781657.833 }, "end": { "local": "1933-02-21T19:33:32+03:00", "utc": "1933-02-21T16:33:32Z", "ms": -1163143588061.8025 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1933-02-22", "window": { "start": { "local": "1933-02-22T17:51:17+03:00", "utc": "1933-02-22T14:51:17Z", "ms": -1163063322863.255 }, "end": { "local": "1933-02-22T19:34:13+03:00", "utc": "1933-02-22T16:34:13Z", "ms": -1163057146959.1853 } }, "covered_min": 8, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:40 on Tue 21 Feb to 18:00 on Wed 22 Feb.", "fact": "1933-02-21T16:40:16Z → 1933-02-22T14:59:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:50–19:34 on the 21st, 17:51–19:34 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 21st and 8 of 103 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 404 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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": "1933-02-21", "confidence": "boundary" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Wednesday 22 February. Trayodaśī runs from 19:40 on Tue 21 Feb to 18:00 on Wed 22 Feb and covers 8 of 103 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-02-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-02-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12730, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-02-27T16:13:19+03:00", "utc": "1933-02-27T13:13:19Z", "ms": -1162637200857.3093 }, "end": { "local": "1933-02-28T17:33:55+03:00", "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": "1933-02-27T16:13:19+03:00", "utc": "1933-02-27T13:13:19Z", "ms": -1162637200857.3093 }, "end": { "local": "1933-02-28T17:33:55+03:00", "utc": "1933-02-28T14:33:55Z", "ms": -1162545965031.925 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-02-27", "window": { "start": { "local": "1933-02-27T11:53:09+03:00", "utc": "1933-02-27T08:53:09Z", "ms": -1162652810878.352 }, "end": { "local": "1933-02-27T12:41:09+03:00", "utc": "1933-02-27T09:41:09Z", "ms": -1162649930878.352 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-02-28", "window": { "start": { "local": "1933-02-28T11:52:58+03:00", "utc": "1933-02-28T08:52:58Z", "ms": -1162566421542.0874 }, "end": { "local": "1933-02-28T12:40:58+03:00", "utc": "1933-02-28T09:40:58Z", "ms": -1162563541542.0874 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:13 on Mon 27 Feb to 17:34 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: 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": "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 12730 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 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 Erbil, Vināyaka Caturthī 1933 falls on Tuesday 28 February. Caturthī runs from 16:13 on Mon 27 Feb to 17:34 on Tue 28 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-03-08", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 357, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-03-07T06:33:25+03:00", "utc": "1933-03-07T03:33:25Z", "ms": -1161980794652.517 }, "end": { "local": "1933-03-08T07:43:38+03:00", "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": "1933-03-07T06:33:25+03:00", "utc": "1933-03-07T03:33:25Z", "ms": -1161980794652.517 }, "end": { "local": "1933-03-08T07:43:38+03:00", "utc": "1933-03-08T04:43:38Z", "ms": -1161890181907.5618 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-03-07", "window": { "start": { "local": "1933-03-07T06:27:28+03:00", "utc": "1933-03-07T03:27:28Z", "ms": -1161981151916.1191 }, "end": { "local": "1933-03-07T06:27:28+03:00", "utc": "1933-03-07T03:27:28Z", "ms": -1161981151916.1191 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-03-08", "window": { "start": { "local": "1933-03-08T06:26:05+03:00", "utc": "1933-03-08T03:26:05Z", "ms": -1161894835141.7715 }, "end": { "local": "1933-03-08T06:26:05+03:00", "utc": "1933-03-08T03:26:05Z", "ms": -1161894835141.7715 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:33 on Tue 7 Mar to 07:44 on Wed 8 Mar.", "fact": "1933-03-07T03:33:25Z → 1933-03-08T04:43:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:27 on the 7th and 06:26 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is 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 357 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Erbil, 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": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-08", "confidence": "determinate" } ], "quote": "In Erbil, Āmalakī Ekādaśī 1933 falls on Wednesday 8 March. Ekādaśī runs from 06:33 on Tue 7 Mar to 07:44 on Wed 8 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-03-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35509, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-03-09T08:13:30+03:00", "utc": "1933-03-09T05:13:30Z", "ms": -1161801990369.083 }, "end": { "local": "1933-03-10T08:01:55+03:00", "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": "1933-03-09T08:13:30+03:00", "utc": "1933-03-09T05:13:30Z", "ms": -1161801990369.083 }, "end": { "local": "1933-03-10T08:01:55+03:00", "utc": "1933-03-10T05:01:55Z", "ms": -1161716285262.5164 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-03-09", "window": { "start": { "local": "1933-03-09T18:05:19+03:00", "utc": "1933-03-09T15:05:19Z", "ms": -1161766481093.5344 }, "end": { "local": "1933-03-09T19:43:43+03:00", "utc": "1933-03-09T16:43:43Z", "ms": -1161760577355.234 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "1933-03-10", "window": { "start": { "local": "1933-03-10T18:06:12+03:00", "utc": "1933-03-10T15:06:12Z", "ms": -1161680027506.5925 }, "end": { "local": "1933-03-10T19:44:18+03:00", "utc": "1933-03-10T16:44:18Z", "ms": -1161674142196.4197 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:13 on Thu 9 Mar to 08:02 on Fri 10 Mar.", "fact": "1933-03-09T05:13:30Z → 1933-03-10T05:01:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:05–19:44 on the 9th, 18:06–19:44 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 35509 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Thursday 9 March. Trayodaśī runs from 08:13 on Thu 9 Mar to 08:02 on Fri 10 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30899, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-03-11T07:11:04+03:00", "utc": "1933-03-11T04:11:04Z", "ms": -1161632935612.822 }, "end": { "local": "1933-03-12T05:45:36+03:00", "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": "1933-03-11T07:11:04+03:00", "utc": "1933-03-11T04:11:04Z", "ms": -1161632935612.822 }, "end": { "local": "1933-03-12T05:45:36+03:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 } }, "kaala": "sayahna", "days": [ { "local_date": "1933-03-11", "window": { "start": { "local": "1933-03-11T15:46:03+03:00", "utc": "1933-03-11T12:46:03Z", "ms": -1161602036884.4878 }, "end": { "local": "1933-03-11T18:07:06+03:00", "utc": "1933-03-11T15:07:06Z", "ms": -1161593574185.536 } }, "covered_min": 141, "window_min": 141, "qualifies": true }, { "local_date": "1933-03-12", "window": { "start": { "local": "1933-03-12T15:46:29+03:00", "utc": "1933-03-12T12:46:29Z", "ms": -1161515611432.7014 }, "end": { "local": "1933-03-12T18:07:59+03:00", "utc": "1933-03-12T15:07:59Z", "ms": -1161507121114.2095 } }, "covered_min": 0, "window_min": 142, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:11 on Sat 11 Mar to 05:46 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: 15:46–18:07 on the 11th, 15:46–18:08 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 141 of 141 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 30899 s" }, { "step": "ruling", "text": "Holikā Dahana, Erbil, 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 Erbil, Holikā Dahana 1933 falls on Saturday 11 March. Pūrṇimā runs from 07:11 on Sat 11 Mar to 05:46 on Sun 12 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30899, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-03-11T07:11:04+03:00", "utc": "1933-03-11T04:11:04Z", "ms": -1161632935612.822 }, "end": { "local": "1933-03-12T05:45:36+03:00", "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": "1933-03-11T07:11:04+03:00", "utc": "1933-03-11T04:11:04Z", "ms": -1161632935612.822 }, "end": { "local": "1933-03-12T05:45:36+03:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 } }, "kaala": "sayahna", "days": [ { "local_date": "1933-03-11", "window": { "start": { "local": "1933-03-11T15:46:03+03:00", "utc": "1933-03-11T12:46:03Z", "ms": -1161602036884.4878 }, "end": { "local": "1933-03-11T18:07:06+03:00", "utc": "1933-03-11T15:07:06Z", "ms": -1161593574185.536 } }, "covered_min": 141, "window_min": 141, "qualifies": true }, { "local_date": "1933-03-12", "window": { "start": { "local": "1933-03-12T15:46:29+03:00", "utc": "1933-03-12T12:46:29Z", "ms": -1161515611432.7014 }, "end": { "local": "1933-03-12T18:07:59+03:00", "utc": "1933-03-12T15:07:59Z", "ms": -1161507121114.2095 } }, "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 07:11 on Sat 11 Mar to 05:46 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: 15:46–18:07 on the 11th, 15:46–18:08 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 141 of 141 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 30899 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, Erbil, 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 Erbil, Holī 1933 falls on Sunday 12 March. It is kept the day after Holikā Dahana, which falls on Saturday 11 March. Pūrṇimā runs from 07:11 on Sat 11 Mar to 05:46 on Sun 12 Mar and covers all of sāyāhna on the 11th.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2091, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-03-12T05:45:36+03:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 }, "end": { "local": "1933-03-13T03:51:44+03:00", "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": "1933-03-12T05:45:36+03:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 }, "end": { "local": "1933-03-13T03:51:44+03:00", "utc": "1933-03-13T00:51:44Z", "ms": -1161472096037.7244 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-03-12", "window": { "start": { "local": "1933-03-12T06:20:27+03:00", "utc": "1933-03-12T03:20:27Z", "ms": -1161549572706.6694 }, "end": { "local": "1933-03-12T06:20:27+03:00", "utc": "1933-03-12T03:20:27Z", "ms": -1161549572706.6694 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-03-13", "window": { "start": { "local": "1933-03-13T06:19:02+03:00", "utc": "1933-03-13T03:19:02Z", "ms": -1161463258102.632 }, "end": { "local": "1933-03-13T06:19:02+03:00", "utc": "1933-03-13T03:19:02Z", "ms": -1161463258102.632 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 05:46 on Sun 12 Mar to 03:52 on Mon 13 Mar.", "fact": "1933-03-12T02:45:36Z → 1933-03-13T00:51:44Z" }, { "step": "kaala", "text": "Sunrise is at 06:20 on the 12th and 06:19 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2091 s" }, { "step": "ruling", "text": "Vasantotsava, Erbil, 1933: Sunday 12 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": "1933-03-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-12", "confidence": "determinate" } ], "quote": "In Erbil, Vasantotsava 1933 falls on Sunday 12 March. Pratipadā runs from 05:46 on Sun 12 Mar to 03:52 on Mon 13 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-03-14", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-14", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 6340, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-03-14T23:07:33+03:00", "utc": "1933-03-14T20:07:33Z", "ms": -1161316347180.7822 }, "end": { "local": "1933-03-15T20:31:53+03:00", "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": "1933-03-14T23:07:33+03:00", "utc": "1933-03-14T20:07:33Z", "ms": -1161316347180.7822 }, "end": { "local": "1933-03-15T20:31:53+03:00", "utc": "1933-03-15T17:31:53Z", "ms": -1161239286734.9985 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-03-14", "window": { "start": { "local": "1933-03-14T21:03:29+03:00", "utc": "1933-03-14T18:03:29Z", "ms": -1161323790856.605 }, "end": { "local": "1933-03-14T21:03:29+03:00", "utc": "1933-03-14T18:03:29Z", "ms": -1161323790856.605 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-03-15", "window": { "start": { "local": "1933-03-15T22:17:34+03:00", "utc": "1933-03-15T19:17:34Z", "ms": -1161232946275.5752 }, "end": { "local": "1933-03-15T22:17:34+03:00", "utc": "1933-03-15T19:17:34Z", "ms": -1161232946275.5752 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:08 on Tue 14 Mar to 20:32 on Wed 15 Mar.", "fact": "1933-03-14T20:07:33Z → 1933-03-15T17:31:53Z" }, { "step": "kaala", "text": "Moonrise is at 21:03 on the 14th and 22:18 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 not on the 15th.", "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 6340 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 1933: Tuesday 14 March.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-03-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-14", "confidence": "boundary" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī 1933 falls on Tuesday 14 March. Caturthī runs from 23:08 on Tue 14 Mar to 20:32 on Wed 15 Mar, and is current at moonrise on neither day.", "cite": "https://ahargana.org/erbil/festivals/1933/sankashta-chaturthi?on=1933-03-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1905, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-03-18T13:08:17+03:00", "utc": "1933-03-18T10:08:17Z", "ms": -1161006703134.166 }, "end": { "local": "1933-03-19T11:04:38+03:00", "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": "1933-03-18T13:08:17+03:00", "utc": "1933-03-18T10:08:17Z", "ms": -1161006703134.166 }, "end": { "local": "1933-03-19T11:04:38+03:00", "utc": "1933-03-19T08:04:38Z", "ms": -1160927721623.9778 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-18", "window": { "start": { "local": "1933-03-18T11:48:32+03:00", "utc": "1933-03-18T08:48:32Z", "ms": -1161011488268.489 }, "end": { "local": "1933-03-18T12:36:32+03:00", "utc": "1933-03-18T09:36:32Z", "ms": -1161008608268.489 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-19", "window": { "start": { "local": "1933-03-19T11:48:14+03:00", "utc": "1933-03-19T08:48:14Z", "ms": -1160925105859.9478 }, "end": { "local": "1933-03-19T12:36:14+03:00", "utc": "1933-03-19T09:36:14Z", "ms": -1160922225859.9478 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 13:08 on Sat 18 Mar to 11:05 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: 11:49–12:37 on the 18th, 11:48–12:36 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 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 1905 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Erbil, 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": "1933-03-18", "confidence": "boundary" } ], "quote": "In Erbil, Śītalāṣṭamī 1933 falls on Sunday 19 March. Aṣṭamī runs from 13:08 on Sat 18 Mar to 11:05 on Sun 19 Mar, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-03-22", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2487, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-03-21T07:52:34+03:00", "utc": "1933-03-21T04:52:34Z", "ms": -1160766446278.9058 }, "end": { "local": "1933-03-22T06:47:29+03:00", "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": "1933-03-21T07:52:34+03:00", "utc": "1933-03-21T04:52:34Z", "ms": -1160766446278.9058 }, "end": { "local": "1933-03-22T06:47:29+03:00", "utc": "1933-03-22T03:47:29Z", "ms": -1160683950860.0566 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-03-21", "window": { "start": { "local": "1933-03-21T06:07:29+03:00", "utc": "1933-03-21T03:07:29Z", "ms": -1160772750731.6296 }, "end": { "local": "1933-03-21T06:07:29+03:00", "utc": "1933-03-21T03:07:29Z", "ms": -1160772750731.6296 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-03-22", "window": { "start": { "local": "1933-03-22T06:06:02+03:00", "utc": "1933-03-22T03:06:02Z", "ms": -1160686438025.5464 }, "end": { "local": "1933-03-22T06:06:02+03:00", "utc": "1933-03-22T03:06:02Z", "ms": -1160686438025.5464 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:53 on Tue 21 Mar to 06:47 on Wed 22 Mar.", "fact": "1933-03-21T04:52:34Z → 1933-03-22T03:47:29Z" }, { "step": "kaala", "text": "Sunrise is at 06:07 on the 21st and 06:06 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 2487 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Erbil, 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 Erbil, Pāpamocanī Ekādaśī 1933 falls on Wednesday 22 March. Ekādaśī runs from 07:53 on Tue 21 Mar to 06:47 on Wed 22 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-03-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35602, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-03-23T06:04:36+03:00", "utc": "1933-03-23T03:04:36Z", "ms": -1160600124351.2537 }, "end": { "local": "1933-03-24T05:44:57+03:00", "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": "1933-03-23T06:04:36+03:00", "utc": "1933-03-23T03:04:36Z", "ms": -1160600124351.2537 }, "end": { "local": "1933-03-24T05:44:57+03:00", "utc": "1933-03-24T02:44:57Z", "ms": -1160514902805.102 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-03-22", "window": { "start": { "local": "1933-03-22T18:16:39+03:00", "utc": "1933-03-22T15:16:39Z", "ms": -1160642600801.6873 }, "end": { "local": "1933-03-22T19:51:03+03:00", "utc": "1933-03-22T16:51:03Z", "ms": -1160636937412.1074 } }, "covered_min": 0, "window_min": 94, "qualifies": false }, { "local_date": "1933-03-23", "window": { "start": { "local": "1933-03-23T18:17:30+03:00", "utc": "1933-03-23T15:17:30Z", "ms": -1160556149546.0535 }, "end": { "local": "1933-03-23T19:51:35+03:00", "utc": "1933-03-23T16:51:35Z", "ms": -1160550504642.1394 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:05 on Thu 23 Mar to 05:45 on Fri 24 Mar.", "fact": "1933-03-23T03:04:36Z → 1933-03-24T02:44:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:17–19:51 on the 22nd, 18:18–19:52 on the 23rd.", "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 94 minutes on the 22nd and 94 of 94 on the 23rd.", "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 35602 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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 Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Thursday 23 March. Trayodaśī runs from 06:05 on Thu 23 Mar to 05:45 on Fri 24 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-03-24", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18638, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-03-24T05:44:57+03:00", "utc": "1933-03-24T02:44:57Z", "ms": -1160514902805.102 }, "end": { "local": "1933-03-25T05:49:45+03:00", "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": "1933-03-24T05:44:57+03:00", "utc": "1933-03-24T02:44:57Z", "ms": -1160514902805.102 }, "end": { "local": "1933-03-25T05:49:45+03:00", "utc": "1933-03-25T02:49:45Z", "ms": -1160428214996.2615 } }, "kaala": "nishita", "days": [ { "local_date": "1933-03-23", "window": { "start": { "local": "1933-03-23T23:46:19+03:00", "utc": "1933-03-23T20:46:19Z", "ms": -1160536421156.3755 }, "end": { "local": "1933-03-24T00:34:19+03:00", "utc": "1933-03-23T21:34:19Z", "ms": -1160533541156.3755 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-24", "window": { "start": { "local": "1933-03-24T23:46:01+03:00", "utc": "1933-03-24T20:46:01Z", "ms": -1160450039278.0564 }, "end": { "local": "1933-03-25T00:34:01+03:00", "utc": "1933-03-24T21:34:01Z", "ms": -1160447159278.0564 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:45 on Fri 24 Mar to 05:50 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: 23:46–00:34 on the 23rd, 23:46–00:34 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 18638 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 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 Erbil, Śivarātri 1933 falls on Friday 24 March. Caturdaśī runs from 05:45 on Fri 24 Mar to 05:50 on Sat 25 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16111, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-03-26T06:20:13+03:00", "utc": "1933-03-26T03:20:13Z", "ms": -1160339986835.5183 }, "end": { "local": "1933-03-27T07:17:19+03:00", "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": "1933-03-26T06:20:13+03:00", "utc": "1933-03-26T03:20:13Z", "ms": -1160339986835.5183 }, "end": { "local": "1933-03-27T07:17:19+03:00", "utc": "1933-03-27T04:17:19Z", "ms": -1160250161288.8335 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-26", "window": { "start": { "local": "1933-03-26T11:46:08+03:00", "utc": "1933-03-26T08:46:08Z", "ms": -1160320431961.7285 }, "end": { "local": "1933-03-26T12:34:08+03:00", "utc": "1933-03-26T09:34:08Z", "ms": -1160317551961.7285 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-03-27", "window": { "start": { "local": "1933-03-27T11:45:50+03:00", "utc": "1933-03-27T08:45:50Z", "ms": -1160234050188.7698 }, "end": { "local": "1933-03-27T12:33:50+03:00", "utc": "1933-03-27T09:33:50Z", "ms": -1160231170188.7698 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 06:20 on Sun 26 Mar to 07:17 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: 11:46–12:34 on the 26th, 11:46–12:34 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 0 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: paraviddha → only-day · margin 16111 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Erbil, 1933: Sunday 26 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": "1933-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-26", "confidence": "determinate" } ], "quote": "In Erbil, Navarātrārambha (Caitra) (Chaitra Navratri) 1933 falls on Sunday 26 March. Pratipadā runs from 06:20 on Sun 26 Mar to 07:17 on Mon 27 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4511, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-03-28T08:41:06+03:00", "utc": "1933-03-28T05:41:06Z", "ms": -1160158733554.0964 }, "end": { "local": "1933-03-29T10:30:03+03:00", "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": "1933-03-28T08:41:06+03:00", "utc": "1933-03-28T05:41:06Z", "ms": -1160158733554.0964 }, "end": { "local": "1933-03-29T10:30:03+03:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-28", "window": { "start": { "local": "1933-03-28T11:45:32+03:00", "utc": "1933-03-28T08:45:32Z", "ms": -1160147668418.1765 }, "end": { "local": "1933-03-28T12:33:32+03:00", "utc": "1933-03-28T09:33:32Z", "ms": -1160144788418.1765 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-03-29", "window": { "start": { "local": "1933-03-29T11:45:13+03:00", "utc": "1933-03-29T08:45:13Z", "ms": -1160061286632.9507 }, "end": { "local": "1933-03-29T12:33:13+03:00", "utc": "1933-03-29T09:33:13Z", "ms": -1160058406632.9507 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 08:41 on Tue 28 Mar to 10:30 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: 11:46–12:34 on the 28th, 11:45–12:33 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 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4511 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Erbil, 1933: Tuesday 28 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": "1933-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-28", "confidence": "determinate" } ], "quote": "In Erbil, Gaurī Tṛtīyā (Gangaur) 1933 falls on Tuesday 28 March. Tṛtīyā runs from 08:41 on Tue 28 Mar to 10:30 on Wed 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4511, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-03-28T08:41:06+03:00", "utc": "1933-03-28T05:41:06Z", "ms": -1160158733554.0964 }, "end": { "local": "1933-03-29T10:30:03+03:00", "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": "1933-03-28T08:41:06+03:00", "utc": "1933-03-28T05:41:06Z", "ms": -1160158733554.0964 }, "end": { "local": "1933-03-29T10:30:03+03:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-28", "window": { "start": { "local": "1933-03-28T11:45:32+03:00", "utc": "1933-03-28T08:45:32Z", "ms": -1160147668418.1765 }, "end": { "local": "1933-03-28T12:33:32+03:00", "utc": "1933-03-28T09:33:32Z", "ms": -1160144788418.1765 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-03-29", "window": { "start": { "local": "1933-03-29T11:45:13+03:00", "utc": "1933-03-29T08:45:13Z", "ms": -1160061286632.9507 }, "end": { "local": "1933-03-29T12:33:13+03:00", "utc": "1933-03-29T09:33:13Z", "ms": -1160058406632.9507 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 08:41 on Tue 28 Mar to 10:30 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: 11:46–12:34 on the 28th, 11:45–12:33 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 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4511 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Erbil, 1933: Tuesday 28 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": "1933-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-28", "confidence": "determinate" } ], "quote": "In Erbil, Saubhāgya Śayana Vrata 1933 falls on Tuesday 28 March. Tṛtīyā runs from 08:41 on Tue 28 Mar to 10:30 on Wed 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-03-29", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-29", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 433, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-03-29T10:30:03+03:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 }, "end": { "local": "1933-03-30T12:40:08+03:00", "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": "1933-03-29T10:30:03+03:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 }, "end": { "local": "1933-03-30T12:40:08+03:00", "utc": "1933-03-30T09:40:08Z", "ms": -1159971591801.6975 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-29", "window": { "start": { "local": "1933-03-29T11:45:13+03:00", "utc": "1933-03-29T08:45:13Z", "ms": -1160061286632.9507 }, "end": { "local": "1933-03-29T12:33:13+03:00", "utc": "1933-03-29T09:33:13Z", "ms": -1160058406632.9507 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-03-30", "window": { "start": { "local": "1933-03-30T11:44:55+03:00", "utc": "1933-03-30T08:44:55Z", "ms": -1159974904815.894 }, "end": { "local": "1933-03-30T12:32:55+03:00", "utc": "1933-03-30T09:32:55Z", "ms": -1159972024815.894 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:30 on Wed 29 Mar to 12:40 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: 11:45–12:33 on the 29th, 11:45–12:33 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 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "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 433 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 1933: Wednesday 29 March.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1933-03-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-29", "confidence": "boundary" } ], "quote": "In Erbil, Vināyaka Caturthī 1933 falls on Wednesday 29 March. Caturthī runs from 10:30 on Wed 29 Mar to 12:40 on Thu 30 Mar 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/erbil/festivals/1933/vinayaka-chaturthi?on=1933-03-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 433, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-03-30T12:40:08+03:00", "utc": "1933-03-30T09:40:08Z", "ms": -1159971591801.6975 }, "end": { "local": "1933-03-31T15:04:24+03:00", "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": "1933-03-30T12:40:08+03:00", "utc": "1933-03-30T09:40:08Z", "ms": -1159971591801.6975 }, "end": { "local": "1933-03-31T15:04:24+03:00", "utc": "1933-03-31T12:04:24Z", "ms": -1159876536217.511 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-30", "window": { "start": { "local": "1933-03-30T11:44:55+03:00", "utc": "1933-03-30T08:44:55Z", "ms": -1159974904815.894 }, "end": { "local": "1933-03-30T12:32:55+03:00", "utc": "1933-03-30T09:32:55Z", "ms": -1159972024815.894 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-31", "window": { "start": { "local": "1933-03-31T11:44:37+03:00", "utc": "1933-03-31T08:44:37Z", "ms": -1159888522949.5933 }, "end": { "local": "1933-03-31T12:32:37+03:00", "utc": "1933-03-31T09:32:37Z", "ms": -1159885642949.5933 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:40 on Thu 30 Mar to 15:04 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: 11:45–12:33 on the 30th, 11:45–12:33 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 433 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Erbil, 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": "1933-03-30", "confidence": "determinate" } ], "quote": "In Erbil, Lakṣmī Pañcamī 1933 falls on Friday 31 March. Pañcamī runs from 12:40 on Thu 30 Mar to 15:04 on Fri 31 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26472, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-04-02T19:53:13+03:00", "utc": "1933-04-02T16:53:13Z", "ms": -1159686406977.5876 }, "end": { "local": "1933-04-03T21:52:33+03:00", "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": "1933-04-02T19:53:13+03:00", "utc": "1933-04-02T16:53:13Z", "ms": -1159686406977.5876 }, "end": { "local": "1933-04-03T21:52:33+03:00", "utc": "1933-04-03T18:52:33Z", "ms": -1159592847236.6995 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-02", "window": { "start": { "local": "1933-04-02T11:44:01+03:00", "utc": "1933-04-02T08:44:01Z", "ms": -1159715758998.5703 }, "end": { "local": "1933-04-02T12:32:01+03:00", "utc": "1933-04-02T09:32:01Z", "ms": -1159712878998.5703 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-04-03", "window": { "start": { "local": "1933-04-03T11:43:43+03:00", "utc": "1933-04-03T08:43:43Z", "ms": -1159629376877.9907 }, "end": { "local": "1933-04-03T12:31:43+03:00", "utc": "1933-04-03T09:31:43Z", "ms": -1159626496877.9907 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 19:53 on Sun 2 Apr to 21:53 on Mon 3 Apr.", "fact": "1933-04-02T16:53:13Z → 1933-04-03T18:52:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 2nd, 11:44–12:32 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26472 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Erbil, 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 Erbil, Bhavānī Utpatti 1933 falls on Monday 3 April. Aṣṭamī runs from 19:53 on Sun 2 Apr to 21:53 on Mon 3 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33650, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1933-04-03T21:52:33+03:00", "utc": "1933-04-03T18:52:33Z", "ms": -1159592847236.6995 }, "end": { "local": "1933-04-04T23:18:59+03:00", "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": "1933-04-03T21:52:33+03:00", "utc": "1933-04-03T18:52:33Z", "ms": -1159592847236.6995 }, "end": { "local": "1933-04-04T23:18:59+03:00", "utc": "1933-04-04T20:18:59Z", "ms": -1159501261355.4475 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-03", "window": { "start": { "local": "1933-04-03T11:43:43+03:00", "utc": "1933-04-03T08:43:43Z", "ms": -1159629376877.9907 }, "end": { "local": "1933-04-03T12:31:43+03:00", "utc": "1933-04-03T09:31:43Z", "ms": -1159626496877.9907 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-04-04", "window": { "start": { "local": "1933-04-04T11:43:25+03:00", "utc": "1933-04-04T08:43:25Z", "ms": -1159542994636.4238 }, "end": { "local": "1933-04-04T12:31:25+03:00", "utc": "1933-04-04T09:31:25Z", "ms": -1159540114636.4238 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 21:53 on Mon 3 Apr to 23:19 on Tue 4 Apr.", "fact": "1933-04-03T18:52:33Z → 1933-04-04T20:18:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 3rd, 11:43–12:31 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33650 s" }, { "step": "ruling", "text": "Rāma Navamī, Erbil, 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 Erbil, Rāma Navamī 1933 falls on Tuesday 4 April. Navamī runs from 21:53 on Mon 3 Apr to 23:19 on Tue 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-04-06", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20449, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-04-06T00:03:32+03:00", "utc": "1933-04-05T21:03:32Z", "ms": -1159412188032.6633 }, "end": { "local": "1933-04-07T00:01:11+03:00", "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": "1933-04-06T00:03:32+03:00", "utc": "1933-04-05T21:03:32Z", "ms": -1159412188032.6633 }, "end": { "local": "1933-04-07T00:01:11+03:00", "utc": "1933-04-06T21:01:11Z", "ms": -1159325929455.6753 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-04-06", "window": { "start": { "local": "1933-04-06T05:44:21+03:00", "utc": "1933-04-06T02:44:21Z", "ms": -1159391739286.8337 }, "end": { "local": "1933-04-06T05:44:21+03:00", "utc": "1933-04-06T02:44:21Z", "ms": -1159391739286.8337 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-04-07", "window": { "start": { "local": "1933-04-07T05:42:56+03:00", "utc": "1933-04-07T02:42:56Z", "ms": -1159305424227.6658 }, "end": { "local": "1933-04-07T05:42:56+03:00", "utc": "1933-04-07T02:42:56Z", "ms": -1159305424227.6658 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:04 on Thu 6 Apr to 00:01 on Fri 7 Apr.", "fact": "1933-04-05T21:03:32Z → 1933-04-06T21:01:11Z" }, { "step": "kaala", "text": "Sunrise is at 05:44 on the 6th and 05:43 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 20449 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Erbil, 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 Erbil, Kāmadā Ekādaśī 1933 falls on Thursday 6 April. Ekādaśī runs from 00:04 on Thu 6 Apr to 00:01 on Fri 7 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32752, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-04-07T23:11:04+03:00", "utc": "1933-04-07T20:11:04Z", "ms": -1159242536104.1152 }, "end": { "local": "1933-04-08T21:36:08+03:00", "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": "1933-04-07T23:11:04+03:00", "utc": "1933-04-07T20:11:04Z", "ms": -1159242536104.1152 }, "end": { "local": "1933-04-08T21:36:08+03:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-07", "window": { "start": { "local": "1933-04-07T11:42:33+03:00", "utc": "1933-04-07T08:42:33Z", "ms": -1159283846998.163 }, "end": { "local": "1933-04-07T12:30:33+03:00", "utc": "1933-04-07T09:30:33Z", "ms": -1159280966998.163 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-04-08", "window": { "start": { "local": "1933-04-08T11:42:16+03:00", "utc": "1933-04-08T08:42:16Z", "ms": -1159197464082.5933 }, "end": { "local": "1933-04-08T12:30:16+03:00", "utc": "1933-04-08T09:30:16Z", "ms": -1159194584082.5933 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:11 on Fri 7 Apr to 21:36 on Sat 8 Apr.", "fact": "1933-04-07T20:11:04Z → 1933-04-08T18:36:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 7th, 11:42–12:30 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 32752 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Erbil, 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 Erbil, Anaṅga Trayodaśī 1933 falls on Saturday 8 April. Trayodaśī runs from 23:11 on Fri 7 Apr to 21:36 on Sat 8 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-04-08", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5755, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-04-07T23:11:04+03:00", "utc": "1933-04-07T20:11:04Z", "ms": -1159242536104.1152 }, "end": { "local": "1933-04-08T21:36:08+03:00", "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": "1933-04-07T23:11:04+03:00", "utc": "1933-04-07T20:11:04Z", "ms": -1159242536104.1152 }, "end": { "local": "1933-04-08T21:36:08+03:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-04-07", "window": { "start": { "local": "1933-04-07T18:30:10+03:00", "utc": "1933-04-07T15:30:10Z", "ms": -1159259389768.6602 }, "end": { "local": "1933-04-07T19:59:41+03:00", "utc": "1933-04-07T16:59:41Z", "ms": -1159254018969.886 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "1933-04-08", "window": { "start": { "local": "1933-04-08T18:31:01+03:00", "utc": "1933-04-08T15:31:01Z", "ms": -1159172939387.3325 }, "end": { "local": "1933-04-08T20:00:13+03:00", "utc": "1933-04-08T17:00:13Z", "ms": -1159167586523.2803 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:11 on Fri 7 Apr to 21:36 on Sat 8 Apr.", "fact": "1933-04-07T20:11:04Z → 1933-04-08T18:36:08Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:30–20:00 on the 7th, 18:31–20:00 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 89 of 89 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 5755 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Saturday 8 April. Trayodaśī runs from 23:11 on Fri 7 Apr to 21:36 on Sat 8 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24739, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-04-08T21:36:08+03:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 }, "end": { "local": "1933-04-09T19:22:18+03:00", "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": "1933-04-08T21:36:08+03:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 }, "end": { "local": "1933-04-09T19:22:18+03:00", "utc": "1933-04-09T16:22:18Z", "ms": -1159083462292.1836 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-08", "window": { "start": { "local": "1933-04-08T11:42:16+03:00", "utc": "1933-04-08T08:42:16Z", "ms": -1159197464082.5933 }, "end": { "local": "1933-04-08T12:30:16+03:00", "utc": "1933-04-08T09:30:16Z", "ms": -1159194584082.5933 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-04-09", "window": { "start": { "local": "1933-04-09T11:41:59+03:00", "utc": "1933-04-09T08:41:59Z", "ms": -1159111080948.2734 }, "end": { "local": "1933-04-09T12:29:59+03:00", "utc": "1933-04-09T09:29:59Z", "ms": -1159108200948.2734 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:36 on Sat 8 Apr to 19:22 on Sun 9 Apr.", "fact": "1933-04-08T18:36:08Z → 1933-04-09T16:22:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 8th, 11:42–12:30 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24739 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Erbil, 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 Erbil, Viṣṇudamanaka Caturdaśī 1933 falls on Sunday 9 April. Caturdaśī runs from 21:36 on Sat 8 Apr to 19:22 on Sun 9 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14871, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-04-09T19:22:18+03:00", "utc": "1933-04-09T16:22:18Z", "ms": -1159083462292.1836 }, "end": { "local": "1933-04-10T16:37:33+03:00", "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": "1933-04-09T19:22:18+03:00", "utc": "1933-04-09T16:22:18Z", "ms": -1159083462292.1836 }, "end": { "local": "1933-04-10T16:37:33+03:00", "utc": "1933-04-10T13:37:33Z", "ms": -1159006946764.8582 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-09", "window": { "start": { "local": "1933-04-09T11:41:59+03:00", "utc": "1933-04-09T08:41:59Z", "ms": -1159111080948.2734 }, "end": { "local": "1933-04-09T12:29:59+03:00", "utc": "1933-04-09T09:29:59Z", "ms": -1159108200948.2734 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-04-10", "window": { "start": { "local": "1933-04-10T11:41:42+03:00", "utc": "1933-04-10T08:41:42Z", "ms": -1159024697573.9219 }, "end": { "local": "1933-04-10T12:29:42+03:00", "utc": "1933-04-10T09:29:42Z", "ms": -1159021817573.9219 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:22 on Sun 9 Apr to 16:38 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: 11:42–12:30 on the 9th, 11:42–12:30 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 14871 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Erbil, 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 Erbil, Caitrī Pūrṇimā 1933 falls on Monday 10 April. Pūrṇimā runs from 19:22 on Sun 9 Apr to 16:38 on Mon 10 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18321, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1933-04-13T10:39:56+03:00", "utc": "1933-04-13T07:39:56Z", "ms": -1158769203899.7327 }, "end": { "local": "1933-05-14T07:42:11+03:00", "utc": "1933-05-14T04:42:11Z", "ms": -1156101469173.409 } }, "span": { "of": "transit", "start": { "local": "1933-04-13T10:39:56+03:00", "utc": "1933-04-13T07:39:56Z", "ms": -1158769203899.7327 }, "end": { "local": "1933-04-13T10:39:56+03:00", "utc": "1933-04-13T07:39:56Z", "ms": -1158769203899.7327 } }, "kaala": "day", "days": [ { "local_date": "1933-04-12", "window": { "start": { "local": "1933-04-12T05:35:58+03:00", "utc": "1933-04-12T02:35:58Z", "ms": -1158873842458.0898 }, "end": { "local": "1933-04-13T05:34:35+03:00", "utc": "1933-04-13T02:34:35Z", "ms": -1158787524591.6953 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "1933-04-13", "window": { "start": { "local": "1933-04-13T05:34:35+03:00", "utc": "1933-04-13T02:34:35Z", "ms": -1158787524591.6953 }, "end": { "local": "1933-04-14T05:33:14+03:00", "utc": "1933-04-14T02:33:14Z", "ms": -1158701206147.2065 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 10:40 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 05:36 on the 12th, and from 05:35 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 18321 s" }, { "step": "ruling", "text": "Vaiśākhī, Erbil, 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 Erbil, Vaiśākhī 1933 falls on Thursday 13 April. The Sun enters Meṣa at 10:40 on Thu 13 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-04-13", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18609, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-04-13T06:53:08+03:00", "utc": "1933-04-13T03:53:08Z", "ms": -1158782812229.9783 }, "end": { "local": "1933-04-14T03:40:47+03:00", "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": "1933-04-13T06:53:08+03:00", "utc": "1933-04-13T03:53:08Z", "ms": -1158782812229.9783 }, "end": { "local": "1933-04-14T03:40:47+03:00", "utc": "1933-04-14T00:40:47Z", "ms": -1158707952658.3562 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-04-12", "window": { "start": { "local": "1933-04-12T21:14:13+03:00", "utc": "1933-04-12T18:14:13Z", "ms": -1158817546908.565 }, "end": { "local": "1933-04-12T21:14:13+03:00", "utc": "1933-04-12T18:14:13Z", "ms": -1158817546908.565 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-04-13", "window": { "start": { "local": "1933-04-13T22:30:38+03:00", "utc": "1933-04-13T19:30:38Z", "ms": -1158726561951.4788 }, "end": { "local": "1933-04-13T22:30:38+03:00", "utc": "1933-04-13T19:30:38Z", "ms": -1158726561951.4788 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:53 on Thu 13 Apr to 03:41 on Fri 14 Apr.", "fact": "1933-04-13T03:53:08Z → 1933-04-14T00:40:47Z" }, { "step": "kaala", "text": "Moonrise is at 21:14 on the 12th and 22:31 on the 13th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 12th and is 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 18609 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 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 Erbil, Saṅkaṣṭa Caturthī 1933 falls on Thursday 13 April. Caturthī runs from 06:53 on Thu 13 Apr to 03:41 on Fri 14 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-04-20", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 42217, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-04-19T17:10:13+03:00", "utc": "1933-04-19T14:10:13Z", "ms": -1158227386736.6763 }, "end": { "local": "1933-04-20T17:14:16+03:00", "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": "1933-04-19T17:10:13+03:00", "utc": "1933-04-19T14:10:13Z", "ms": -1158227386736.6763 }, "end": { "local": "1933-04-20T17:14:16+03:00", "utc": "1933-04-20T14:14:16Z", "ms": -1158140744058.3064 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-04-19", "window": { "start": { "local": "1933-04-19T05:26:36+03:00", "utc": "1933-04-19T02:26:36Z", "ms": -1158269604148.4482 }, "end": { "local": "1933-04-19T05:26:36+03:00", "utc": "1933-04-19T02:26:36Z", "ms": -1158269604148.4482 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-04-20", "window": { "start": { "local": "1933-04-20T05:25:18+03:00", "utc": "1933-04-20T02:25:18Z", "ms": -1158183281580.4866 }, "end": { "local": "1933-04-20T05:25:18+03:00", "utc": "1933-04-20T02:25:18Z", "ms": -1158183281580.4866 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:10 on Wed 19 Apr to 17:14 on Thu 20 Apr.", "fact": "1933-04-19T14:10:13Z → 1933-04-20T14:14:16Z" }, { "step": "kaala", "text": "Sunrise is at 05:27 on the 19th and 05:25 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 42217 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Erbil, 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 Erbil, Varūthinī Ekādaśī 1933 falls on Thursday 20 April. Ekādaśī runs from 17:10 on Wed 19 Apr to 17:14 on Thu 20 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-04-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-21", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 56, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-04-21T17:45:49+03:00", "utc": "1933-04-21T14:45:49Z", "ms": -1158052451257.0134 }, "end": { "local": "1933-04-22T18:41:56+03:00", "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": "1933-04-21T17:45:49+03:00", "utc": "1933-04-21T14:45:49Z", "ms": -1158052451257.0134 }, "end": { "local": "1933-04-22T18:41:56+03:00", "utc": "1933-04-22T15:41:56Z", "ms": -1157962684220.9456 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-04-21", "window": { "start": { "local": "1933-04-21T18:42:00+03:00", "utc": "1933-04-21T15:42:00Z", "ms": -1158049079641.5522 }, "end": { "local": "1933-04-21T20:07:26+03:00", "utc": "1933-04-21T17:07:26Z", "ms": -1158043953562.1655 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1933-04-22", "window": { "start": { "local": "1933-04-22T18:42:52+03:00", "utc": "1933-04-22T15:42:52Z", "ms": -1157962628402.372 }, "end": { "local": "1933-04-22T20:08:01+03:00", "utc": "1933-04-22T17:08:01Z", "ms": -1157957519152.0676 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:46 on Fri 21 Apr to 18:42 on Sat 22 Apr.", "fact": "1933-04-21T14:45:49Z → 1933-04-22T15:41:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:07 on the 21st, 18:43–20:08 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 85 of 85 minutes on the 21st and 0 of 85 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 56 s < 300 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 1933: Friday 21 April.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-04-21", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-21", "confidence": "boundary" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Friday 21 April. Trayodaśī runs from 17:46 on Fri 21 Apr to 18:42 on Sat 22 Apr and covers all of pradoṣa that evening. It is 0 min 56 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/1933/pradosha-vrata?on=1933-04-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/shivaratri?on=1933-04-22", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13075, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-04-22T18:41:56+03:00", "utc": "1933-04-22T15:41:56Z", "ms": -1157962684220.9456 }, "end": { "local": "1933-04-23T20:00:05+03:00", "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": "1933-04-22T18:41:56+03:00", "utc": "1933-04-22T15:41:56Z", "ms": -1157962684220.9456 }, "end": { "local": "1933-04-23T20:00:05+03:00", "utc": "1933-04-23T17:00:05Z", "ms": -1157871595287.5764 } }, "kaala": "nishita", "days": [ { "local_date": "1933-04-22", "window": { "start": { "local": "1933-04-22T23:38:11+03:00", "utc": "1933-04-22T20:38:11Z", "ms": -1157944908713.7305 }, "end": { "local": "1933-04-23T00:26:11+03:00", "utc": "1933-04-22T21:26:11Z", "ms": -1157942028713.7305 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-23", "window": { "start": { "local": "1933-04-23T23:38:00+03:00", "utc": "1933-04-23T20:38:00Z", "ms": -1157858520121.7954 }, "end": { "local": "1933-04-24T00:26:00+03:00", "utc": "1933-04-23T21:26:00Z", "ms": -1157855640121.7954 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:42 on Sat 22 Apr to 20:00 on Sun 23 Apr.", "fact": "1933-04-22T15:41:56Z → 1933-04-23T17:00:05Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:38–00:26 on the 22nd, 23:38–00:26 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 13075 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 1933: Saturday 22 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-22", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri 1933 falls on Saturday 22 April. Caturdaśī runs from 18:42 on Sat 22 Apr to 20:00 on Sun 23 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3998, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-04-27T01:45:49+03:00", "utc": "1933-04-26T22:45:49Z", "ms": -1157591650728.037 }, "end": { "local": "1933-04-28T04:08:52+03:00", "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": "1933-04-27T01:45:49+03:00", "utc": "1933-04-26T22:45:49Z", "ms": -1157591650728.037 }, "end": { "local": "1933-04-28T04:08:52+03:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 } }, "kaala": "purvahna", "days": [ { "local_date": "1933-04-27", "window": { "start": { "local": "1933-04-27T05:16:40+03:00", "utc": "1933-04-27T02:16:40Z", "ms": -1157578999959.6746 }, "end": { "local": "1933-04-27T09:46:49+03:00", "utc": "1933-04-27T06:46:49Z", "ms": -1157562790514.7222 } }, "covered_min": 270, "window_min": 270, "qualifies": true }, { "local_date": "1933-04-28", "window": { "start": { "local": "1933-04-28T05:15:30+03:00", "utc": "1933-04-28T02:15:30Z", "ms": -1157492670316.2153 }, "end": { "local": "1933-04-28T09:46:20+03:00", "utc": "1933-04-28T06:46:20Z", "ms": -1157476420287.502 } }, "covered_min": 0, "window_min": 271, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:46 on Thu 27 Apr to 04:09 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: 05:17–09:47 on the 27th, 05:15–09:46 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 270 of 270 minutes on the 27th and 0 of 271 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3998 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Erbil, 1933: Thursday 27 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": "1933-04-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-27", "confidence": "determinate" } ], "quote": "In Erbil, Akṣaya Tṛtīyā 1933 falls on Thursday 27 April. Tṛtīyā runs from 01:46 on Thu 27 Apr to 04:09 on Fri 28 Apr and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20129, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-04-27T01:45:49+03:00", "utc": "1933-04-26T22:45:49Z", "ms": -1157591650728.037 }, "end": { "local": "1933-04-28T04:08:52+03:00", "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": "1933-04-27T01:45:49+03:00", "utc": "1933-04-26T22:45:49Z", "ms": -1157591650728.037 }, "end": { "local": "1933-04-28T04:08:52+03:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-04-26", "window": { "start": { "local": "1933-04-26T18:46:17+03:00", "utc": "1933-04-26T15:46:17Z", "ms": -1157616823022.6072 }, "end": { "local": "1933-04-26T20:10:20+03:00", "utc": "1933-04-26T17:10:20Z", "ms": -1157611779947.5496 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1933-04-27", "window": { "start": { "local": "1933-04-27T18:47:08+03:00", "utc": "1933-04-27T15:47:08Z", "ms": -1157530371624.8171 }, "end": { "local": "1933-04-27T20:10:55+03:00", "utc": "1933-04-27T17:10:55Z", "ms": -1157525344783.6702 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:46 on Thu 27 Apr to 04:09 on Fri 28 Apr.", "fact": "1933-04-26T22:45:49Z → 1933-04-28T01:08:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:10 on the 26th, 18:47–20:11 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 0 of 84 minutes on the 26th and 84 of 84 on the 27th.", "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 20129 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Erbil, 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 Erbil, Paraśurāma Jayantī 1933 falls on Thursday 27 April. Tṛtīyā runs from 01:46 on Thu 27 Apr to 04:09 on Fri 28 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-04-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18018, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-04-28T04:08:52+03:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 }, "end": { "local": "1933-04-29T06:37:18+03:00", "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": "1933-04-28T04:08:52+03:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 }, "end": { "local": "1933-04-29T06:37:18+03:00", "utc": "1933-04-29T03:37:18Z", "ms": -1157401362479.2275 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-28", "window": { "start": { "local": "1933-04-28T11:37:45+03:00", "utc": "1933-04-28T08:37:45Z", "ms": -1157469735273.145 }, "end": { "local": "1933-04-28T12:25:45+03:00", "utc": "1933-04-28T09:25:45Z", "ms": -1157466855273.145 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-29", "window": { "start": { "local": "1933-04-29T11:37:36+03:00", "utc": "1933-04-29T08:37:36Z", "ms": -1157383344260.498 }, "end": { "local": "1933-04-29T12:25:36+03:00", "utc": "1933-04-29T09:25:36Z", "ms": -1157380464260.498 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:09 on Fri 28 Apr to 06:37 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: 11:38–12:26 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": "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 18018 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 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": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 1933 falls on Friday 28 April. Caturthī runs from 04:09 on Fri 28 Apr to 06:37 on Sat 29 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9298, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-04-29T06:37:18+03:00", "utc": "1933-04-29T03:37:18Z", "ms": -1157401362479.2275 }, "end": { "local": "1933-04-30T09:02:29+03:00", "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": "1933-04-29T06:37:18+03:00", "utc": "1933-04-29T03:37:18Z", "ms": -1157401362479.2275 }, "end": { "local": "1933-04-30T09:02:29+03:00", "utc": "1933-04-30T06:02:29Z", "ms": -1157306250614.547 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-29", "window": { "start": { "local": "1933-04-29T11:37:36+03:00", "utc": "1933-04-29T08:37:36Z", "ms": -1157383344260.498 }, "end": { "local": "1933-04-29T12:25:36+03:00", "utc": "1933-04-29T09:25:36Z", "ms": -1157380464260.498 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-30", "window": { "start": { "local": "1933-04-30T11:37:27+03:00", "utc": "1933-04-30T08:37:27Z", "ms": -1157296952748.1128 }, "end": { "local": "1933-04-30T12:25:27+03:00", "utc": "1933-04-30T09:25:27Z", "ms": -1157294072748.1128 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 06:37 on Sat 29 Apr to 09:02 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: 11:38–12:26 on the 29th, 11:37–12:25 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9298 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Erbil, 1933: Saturday 29 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-29", "confidence": "determinate" } ], "quote": "In Erbil, Śaṅkara Jayantī 1933 falls on Saturday 29 April. Pañcamī runs from 06:37 on Sat 29 Apr to 09:02 on Sun 30 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1415, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-05-01T11:13:44+03:00", "utc": "1933-05-01T08:13:44Z", "ms": -1157211975981.203 }, "end": { "local": "1933-05-02T12:59:19+03:00", "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": "1933-05-01T11:13:44+03:00", "utc": "1933-05-01T08:13:44Z", "ms": -1157211975981.203 }, "end": { "local": "1933-05-02T12:59:19+03:00", "utc": "1933-05-02T09:59:19Z", "ms": -1157119240624.941 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-01", "window": { "start": { "local": "1933-05-01T11:37:19+03:00", "utc": "1933-05-01T08:37:19Z", "ms": -1157210560730.055 }, "end": { "local": "1933-05-01T12:25:19+03:00", "utc": "1933-05-01T09:25:19Z", "ms": -1157207680730.055 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-02", "window": { "start": { "local": "1933-05-02T11:37:12+03:00", "utc": "1933-05-02T08:37:12Z", "ms": -1157124168200.6052 }, "end": { "local": "1933-05-02T12:25:12+03:00", "utc": "1933-05-02T09:25:12Z", "ms": -1157121288200.6052 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 11:14 on Mon 1 May to 12:59 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: 11:37–12:25 on the 1st, 11:37–12:25 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 48 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": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1415 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Erbil, 1933: Monday 1 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": "1933-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-01", "confidence": "determinate" } ], "quote": "In Erbil, Gaṅgotpatti (Ganga Saptami) 1933 falls on Monday 1 May. Saptamī runs from 11:14 on Mon 1 May to 12:59 on Tue 2 May and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-05-06", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27736, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-05-05T14:05:51+03:00", "utc": "1933-05-05T11:05:51Z", "ms": -1156856049224.252 }, "end": { "local": "1933-05-06T12:49:01+03:00", "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": "1933-05-05T14:05:51+03:00", "utc": "1933-05-05T11:05:51Z", "ms": -1156856049224.252 }, "end": { "local": "1933-05-06T12:49:01+03:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-05-05", "window": { "start": { "local": "1933-05-05T05:07:47+03:00", "utc": "1933-05-05T02:07:47Z", "ms": -1156888333225.516 }, "end": { "local": "1933-05-05T05:07:47+03:00", "utc": "1933-05-05T02:07:47Z", "ms": -1156888333225.516 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-05-06", "window": { "start": { "local": "1933-05-06T05:06:45+03:00", "utc": "1933-05-06T02:06:45Z", "ms": -1156801994807.894 }, "end": { "local": "1933-05-06T05:06:45+03:00", "utc": "1933-05-06T02:06:45Z", "ms": -1156801994807.894 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:06 on Fri 5 May to 12:49 on Sat 6 May.", "fact": "1933-05-05T11:05:51Z → 1933-05-06T09:49:01Z" }, { "step": "kaala", "text": "Sunrise is at 05:08 on the 5th and 05:07 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 27736 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Erbil, 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 Erbil, Mohinī Ekādaśī 1933 falls on Saturday 6 May. Ekādaśī runs from 14:06 on Fri 5 May to 12:49 on Sat 6 May and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1454, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-05-06T12:49:01+03:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "end": { "local": "1933-05-07T10:44:51+03:00", "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": "1933-05-06T12:49:01+03:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "end": { "local": "1933-05-07T10:44:51+03:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-06", "window": { "start": { "local": "1933-05-06T11:36:47+03:00", "utc": "1933-05-06T08:36:47Z", "ms": -1156778592857.4917 }, "end": { "local": "1933-05-06T12:24:47+03:00", "utc": "1933-05-06T09:24:47Z", "ms": -1156775712857.4917 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-07", "window": { "start": { "local": "1933-05-07T11:36:42+03:00", "utc": "1933-05-07T08:36:42Z", "ms": -1156692197686.3765 }, "end": { "local": "1933-05-07T12:24:42+03:00", "utc": "1933-05-07T09:24:42Z", "ms": -1156689317686.3765 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 12:49 on Sat 6 May to 10:45 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: 11:37–12:25 on the 6th, 11:37–12:25 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 1454 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Erbil, 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": "1933-05-06", "confidence": "determinate" } ], "quote": "In Erbil, Paraśurāma Dvādaśī 1933 falls on Sunday 7 May. Dvādaśī runs from 12:49 on Sat 6 May to 10:45 on Sun 7 May, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1454, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-05-06T12:49:01+03:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "end": { "local": "1933-05-07T10:44:51+03:00", "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": "1933-05-06T12:49:01+03:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "end": { "local": "1933-05-07T10:44:51+03:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-06", "window": { "start": { "local": "1933-05-06T11:36:47+03:00", "utc": "1933-05-06T08:36:47Z", "ms": -1156778592857.4917 }, "end": { "local": "1933-05-06T12:24:47+03:00", "utc": "1933-05-06T09:24:47Z", "ms": -1156775712857.4917 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-07", "window": { "start": { "local": "1933-05-07T11:36:42+03:00", "utc": "1933-05-07T08:36:42Z", "ms": -1156692197686.3765 }, "end": { "local": "1933-05-07T12:24:42+03:00", "utc": "1933-05-07T09:24:42Z", "ms": -1156689317686.3765 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 12:49 on Sat 6 May to 10:45 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: 11:37–12:25 on the 6th, 11:37–12:25 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 1454 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Erbil, 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": "1933-05-06", "confidence": "determinate" } ], "quote": "In Erbil, Rukmiṇī Dvādaśī 1933 falls on Sunday 7 May. Dvādaśī runs from 12:49 on Sat 6 May to 10:45 on Sun 7 May, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-05-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29449, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-05-07T10:44:51+03:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 }, "end": { "local": "1933-05-08T07:59:53+03:00", "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": "1933-05-07T10:44:51+03:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 }, "end": { "local": "1933-05-08T07:59:53+03:00", "utc": "1933-05-08T04:59:53Z", "ms": -1156618807408.4924 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-05-07", "window": { "start": { "local": "1933-05-07T18:55:40+03:00", "utc": "1933-05-07T15:55:40Z", "ms": -1156665860200.7231 }, "end": { "local": "1933-05-07T20:16:53+03:00", "utc": "1933-05-07T17:16:53Z", "ms": -1156660987412.6675 } }, "covered_min": 81, "window_min": 81, "qualifies": true }, { "local_date": "1933-05-08", "window": { "start": { "local": "1933-05-08T18:56:30+03:00", "utc": "1933-05-08T15:56:30Z", "ms": -1156579409645.838 }, "end": { "local": "1933-05-08T20:17:29+03:00", "utc": "1933-05-08T17:17:29Z", "ms": -1156574551311.1143 } }, "covered_min": 0, "window_min": 81, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:45 on Sun 7 May to 08:00 on Mon 8 May.", "fact": "1933-05-07T07:44:51Z → 1933-05-08T04:59:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:17 on the 7th, 18:57–20:17 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 81 of 81 minutes on the 7th and 0 of 81 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 29449 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Sunday 7 May. Trayodaśī runs from 10:45 on Sun 7 May to 08:00 on Mon 8 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30326, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-05-08T07:59:53+03:00", "utc": "1933-05-08T04:59:53Z", "ms": -1156618807408.4924 }, "end": { "local": "1933-05-09T04:42:55+03:00", "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": "1933-05-08T07:59:53+03:00", "utc": "1933-05-08T04:59:53Z", "ms": -1156618807408.4924 }, "end": { "local": "1933-05-09T04:42:55+03:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-05-07", "window": { "start": { "local": "1933-05-07T18:55:40+03:00", "utc": "1933-05-07T15:55:40Z", "ms": -1156665860200.7231 }, "end": { "local": "1933-05-07T20:16:53+03:00", "utc": "1933-05-07T17:16:53Z", "ms": -1156660987412.6675 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1933-05-08", "window": { "start": { "local": "1933-05-08T18:56:30+03:00", "utc": "1933-05-08T15:56:30Z", "ms": -1156579409645.838 }, "end": { "local": "1933-05-08T20:17:29+03:00", "utc": "1933-05-08T17:17:29Z", "ms": -1156574551311.1143 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:00 on Mon 8 May to 04:43 on Tue 9 May.", "fact": "1933-05-08T04:59:53Z → 1933-05-09T01:42:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:17 on the 7th, 18:57–20:17 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 81 minutes on the 7th and 81 of 81 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: paraviddha → only-day · margin 30326 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Erbil, 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 Erbil, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1933 falls on Monday 8 May. Caturdaśī runs from 08:00 on Mon 8 May to 04:43 on Tue 9 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24820, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-05-09T04:42:55+03:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "end": { "local": "1933-05-10T01:04:16+03:00", "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": "1933-05-09T04:42:55+03:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "end": { "local": "1933-05-10T01:04:16+03:00", "utc": "1933-05-09T22:04:16Z", "ms": -1156470943981.9604 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-09", "window": { "start": { "local": "1933-05-09T11:36:34+03:00", "utc": "1933-05-09T08:36:34Z", "ms": -1156519405696.3354 }, "end": { "local": "1933-05-09T12:24:34+03:00", "utc": "1933-05-09T09:24:34Z", "ms": -1156516525696.3354 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-10", "window": { "start": { "local": "1933-05-10T11:36:31+03:00", "utc": "1933-05-10T08:36:31Z", "ms": -1156433008863.4688 }, "end": { "local": "1933-05-10T12:24:31+03:00", "utc": "1933-05-10T09:24:31Z", "ms": -1156430128863.4688 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:43 on Tue 9 May to 01:04 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: 11:37–12:25 on the 9th, 11:37–12:25 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 24820 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Erbil, 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 Erbil, Buddha Pūrṇimā 1933 falls on Tuesday 9 May. Pūrṇimā runs from 04:43 on Tue 9 May to 01:04 on Wed 10 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24820, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-05-09T04:42:55+03:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "end": { "local": "1933-05-10T01:04:16+03:00", "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": "1933-05-09T04:42:55+03:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "end": { "local": "1933-05-10T01:04:16+03:00", "utc": "1933-05-09T22:04:16Z", "ms": -1156470943981.9604 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-09", "window": { "start": { "local": "1933-05-09T11:36:34+03:00", "utc": "1933-05-09T08:36:34Z", "ms": -1156519405696.3354 }, "end": { "local": "1933-05-09T12:24:34+03:00", "utc": "1933-05-09T09:24:34Z", "ms": -1156516525696.3354 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-10", "window": { "start": { "local": "1933-05-10T11:36:31+03:00", "utc": "1933-05-10T08:36:31Z", "ms": -1156433008863.4688 }, "end": { "local": "1933-05-10T12:24:31+03:00", "utc": "1933-05-10T09:24:31Z", "ms": -1156430128863.4688 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:43 on Tue 9 May to 01:04 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: 11:37–12:25 on the 9th, 11:37–12:25 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 24820 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Erbil, 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 Erbil, Sampat Gaurī Vrata 1933 falls on Tuesday 9 May. Pūrṇimā runs from 04:43 on Tue 9 May to 01:04 on Wed 10 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-05-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31187, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-05-12T13:49:34+03:00", "utc": "1933-05-12T10:49:34Z", "ms": -1156252226362.6516 }, "end": { "local": "1933-05-13T10:34:26+03:00", "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": "1933-05-12T13:49:34+03:00", "utc": "1933-05-12T10:49:34Z", "ms": -1156252226362.6516 }, "end": { "local": "1933-05-13T10:34:26+03:00", "utc": "1933-05-13T07:34:26Z", "ms": -1156177534483.317 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-05-12", "window": { "start": { "local": "1933-05-12T22:29:21+03:00", "utc": "1933-05-12T19:29:21Z", "ms": -1156221039098.3406 }, "end": { "local": "1933-05-12T22:29:21+03:00", "utc": "1933-05-12T19:29:21Z", "ms": -1156221039098.3406 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-05-13", "window": { "start": { "local": "1933-05-13T23:25:00+03:00", "utc": "1933-05-13T20:25:00Z", "ms": -1156131299960.6892 }, "end": { "local": "1933-05-13T23:25:00+03:00", "utc": "1933-05-13T20:25:00Z", "ms": -1156131299960.6892 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:50 on Fri 12 May to 10:34 on Sat 13 May.", "fact": "1933-05-12T10:49:34Z → 1933-05-13T07:34:26Z" }, { "step": "kaala", "text": "Moonrise is at 22:29 on the 12th and 23:25 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 31187 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 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 Erbil, Saṅkaṣṭa Caturthī 1933 falls on Friday 12 May. Caturthī runs from 13:50 on Fri 12 May to 10:34 on Sat 13 May and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-05-20", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1346, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-05-19T04:09:21+03:00", "utc": "1933-05-19T01:09:21Z", "ms": -1155682238731.5422 }, "end": { "local": "1933-05-20T05:17:09+03:00", "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": "1933-05-19T04:09:21+03:00", "utc": "1933-05-19T01:09:21Z", "ms": -1155682238731.5422 }, "end": { "local": "1933-05-20T05:17:09+03:00", "utc": "1933-05-20T02:17:09Z", "ms": -1155591770813.9668 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-05-19", "window": { "start": { "local": "1933-05-19T04:55:26+03:00", "utc": "1933-05-19T01:55:26Z", "ms": -1155679474414.5037 }, "end": { "local": "1933-05-19T04:55:26+03:00", "utc": "1933-05-19T01:55:26Z", "ms": -1155679474414.5037 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-05-20", "window": { "start": { "local": "1933-05-20T04:54:44+03:00", "utc": "1933-05-20T01:54:44Z", "ms": -1155593116466.5652 }, "end": { "local": "1933-05-20T04:54:44+03:00", "utc": "1933-05-20T01:54:44Z", "ms": -1155593116466.5652 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:09 on Fri 19 May to 05:17 on Sat 20 May.", "fact": "1933-05-19T01:09:21Z → 1933-05-20T02:17:09Z" }, { "step": "kaala", "text": "Sunrise is at 04:55 on the 19th and 04:55 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 19th and is on the 20th.", "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 1346 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Erbil, 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 Erbil, Aparā Ekādaśī 1933 falls on Saturday 20 May. Ekādaśī runs from 04:09 on Fri 19 May to 05:17 on Sat 20 May and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-05-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37503, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-05-21T06:50:17+03:00", "utc": "1933-05-21T03:50:17Z", "ms": -1155499783066.97 }, "end": { "local": "1933-05-22T08:42:49+03:00", "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": "1933-05-21T06:50:17+03:00", "utc": "1933-05-21T03:50:17Z", "ms": -1155499783066.97 }, "end": { "local": "1933-05-22T08:42:49+03:00", "utc": "1933-05-22T05:42:49Z", "ms": -1155406631230.684 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-05-21", "window": { "start": { "local": "1933-05-21T19:07:05+03:00", "utc": "1933-05-21T16:07:05Z", "ms": -1155455574680.7588 }, "end": { "local": "1933-05-21T20:25:16+03:00", "utc": "1933-05-21T17:25:16Z", "ms": -1155450884169.2625 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1933-05-22", "window": { "start": { "local": "1933-05-22T19:07:52+03:00", "utc": "1933-05-22T16:07:52Z", "ms": -1155369128474.7627 }, "end": { "local": "1933-05-22T20:25:51+03:00", "utc": "1933-05-22T17:25:51Z", "ms": -1155364449096.7578 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:50 on Sun 21 May to 08:43 on Mon 22 May.", "fact": "1933-05-21T03:50:17Z → 1933-05-22T05:42:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:07–20:25 on the 21st, 19:08–20:26 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 78 of 78 minutes on the 21st and 0 of 78 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 37503 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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 Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Sunday 21 May. Trayodaśī runs from 06:50 on Sun 21 May to 08:43 on Mon 22 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-05-22", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29914, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-05-22T08:42:49+03:00", "utc": "1933-05-22T05:42:49Z", "ms": -1155406631230.684 }, "end": { "local": "1933-05-23T10:49:43+03:00", "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": "1933-05-22T08:42:49+03:00", "utc": "1933-05-22T05:42:49Z", "ms": -1155406631230.684 }, "end": { "local": "1933-05-23T10:49:43+03:00", "utc": "1933-05-23T07:49:43Z", "ms": -1155312616964.0088 } }, "kaala": "nishita", "days": [ { "local_date": "1933-05-21", "window": { "start": { "local": "1933-05-21T23:36:15+03:00", "utc": "1933-05-21T20:36:15Z", "ms": -1155439425262.6475 }, "end": { "local": "1933-05-22T00:24:15+03:00", "utc": "1933-05-21T21:24:15Z", "ms": -1155436545262.6475 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-22", "window": { "start": { "local": "1933-05-22T23:36:19+03:00", "utc": "1933-05-22T20:36:19Z", "ms": -1155353020807.2446 }, "end": { "local": "1933-05-23T00:24:19+03:00", "utc": "1933-05-22T21:24:19Z", "ms": -1155350140807.2446 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:43 on Mon 22 May to 10:50 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: 23:36–00:24 on the 21st, 23:36–00:24 on the 22nd.", "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 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29914 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 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 Erbil, Śivarātri 1933 falls on Monday 22 May. Caturdaśī runs from 08:43 on Mon 22 May to 10:50 on Tue 23 May and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19896, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-05-26T17:56:33+03:00", "utc": "1933-05-26T14:56:33Z", "ms": -1155027806720.6428 }, "end": { "local": "1933-05-27T20:19:42+03:00", "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": "1933-05-26T17:56:33+03:00", "utc": "1933-05-26T14:56:33Z", "ms": -1155027806720.6428 }, "end": { "local": "1933-05-27T20:19:42+03:00", "utc": "1933-05-27T17:19:42Z", "ms": -1154932818222.0774 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-26", "window": { "start": { "local": "1933-05-26T11:36:58+03:00", "utc": "1933-05-26T08:36:58Z", "ms": -1155050582381.1553 }, "end": { "local": "1933-05-26T12:24:58+03:00", "utc": "1933-05-26T09:24:58Z", "ms": -1155047702381.1553 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-27", "window": { "start": { "local": "1933-05-27T11:37:04+03:00", "utc": "1933-05-27T08:37:04Z", "ms": -1154964176214.751 }, "end": { "local": "1933-05-27T12:25:04+03:00", "utc": "1933-05-27T09:25:04Z", "ms": -1154961296214.751 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 17:57 on Fri 26 May to 20:20 on Sat 27 May.", "fact": "1933-05-26T14:56:33Z → 1933-05-27T17:19:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 26th, 11:37–12:25 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 19896 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Erbil, 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 Erbil, Rambhā Tṛtīyā 1933 falls on Saturday 27 May. Tṛtīyā runs from 17:57 on Fri 26 May to 20:20 on Sat 27 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-05-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28478, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-05-27T20:19:42+03:00", "utc": "1933-05-27T17:19:42Z", "ms": -1154932818222.0774 }, "end": { "local": "1933-05-28T22:32:58+03:00", "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": "1933-05-27T20:19:42+03:00", "utc": "1933-05-27T17:19:42Z", "ms": -1154932818222.0774 }, "end": { "local": "1933-05-28T22:32:58+03:00", "utc": "1933-05-28T19:32:58Z", "ms": -1154838422367.9436 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-27", "window": { "start": { "local": "1933-05-27T11:37:04+03:00", "utc": "1933-05-27T08:37:04Z", "ms": -1154964176214.751 }, "end": { "local": "1933-05-27T12:25:04+03:00", "utc": "1933-05-27T09:25:04Z", "ms": -1154961296214.751 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-28", "window": { "start": { "local": "1933-05-28T11:37:10+03:00", "utc": "1933-05-28T08:37:10Z", "ms": -1154877769589.3135 }, "end": { "local": "1933-05-28T12:25:10+03:00", "utc": "1933-05-28T09:25:10Z", "ms": -1154874889589.3135 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:20 on Sat 27 May to 22:33 on Sun 28 May.", "fact": "1933-05-27T17:19:42Z → 1933-05-28T19:32:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 27th, 11:37–12:25 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 28478 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 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 Erbil, Vināyaka Caturthī 1933 falls on Sunday 28 May. Caturthī runs from 20:20 on Sat 27 May to 22:33 on Sun 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34981, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-05-30T00:27:44+03:00", "utc": "1933-05-29T21:27:44Z", "ms": -1154745135641.072 }, "end": { "local": "1933-05-31T01:54:32+03:00", "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": "1933-05-30T00:27:44+03:00", "utc": "1933-05-29T21:27:44Z", "ms": -1154745135641.072 }, "end": { "local": "1933-05-31T01:54:32+03:00", "utc": "1933-05-30T22:54:32Z", "ms": -1154653528405.6868 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-30", "window": { "start": { "local": "1933-05-30T11:37:25+03:00", "utc": "1933-05-30T08:37:25Z", "ms": -1154704955025.0583 }, "end": { "local": "1933-05-30T12:25:25+03:00", "utc": "1933-05-30T09:25:25Z", "ms": -1154702075025.0583 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-31", "window": { "start": { "local": "1933-05-31T11:37:33+03:00", "utc": "1933-05-31T08:37:33Z", "ms": -1154618547118.977 }, "end": { "local": "1933-05-31T12:25:33+03:00", "utc": "1933-05-31T09:25:33Z", "ms": -1154615667118.977 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 00:28 on Tue 30 May to 01:55 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: 11:37–12:25 on the 30th, 11:38–12:26 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 34981 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Erbil, 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 Erbil, Araṇya Gaurī Vrata 1933 falls on Tuesday 30 May. Ṣaṣṭhī runs from 00:28 on Tue 30 May to 01:55 on Wed 31 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34981, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-05-30T00:27:44+03:00", "utc": "1933-05-29T21:27:44Z", "ms": -1154745135641.072 }, "end": { "local": "1933-05-31T01:54:32+03:00", "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": "1933-05-30T00:27:44+03:00", "utc": "1933-05-29T21:27:44Z", "ms": -1154745135641.072 }, "end": { "local": "1933-05-31T01:54:32+03:00", "utc": "1933-05-30T22:54:32Z", "ms": -1154653528405.6868 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-30", "window": { "start": { "local": "1933-05-30T11:37:25+03:00", "utc": "1933-05-30T08:37:25Z", "ms": -1154704955025.0583 }, "end": { "local": "1933-05-30T12:25:25+03:00", "utc": "1933-05-30T09:25:25Z", "ms": -1154702075025.0583 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-31", "window": { "start": { "local": "1933-05-31T11:37:33+03:00", "utc": "1933-05-31T08:37:33Z", "ms": -1154618547118.977 }, "end": { "local": "1933-05-31T12:25:33+03:00", "utc": "1933-05-31T09:25:33Z", "ms": -1154615667118.977 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 00:28 on Tue 30 May to 01:55 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: 11:37–12:25 on the 30th, 11:38–12:26 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 34981 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Erbil, 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 Erbil, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1933 falls on Tuesday 30 May. Ṣaṣṭhī runs from 00:28 on Tue 30 May to 01:55 on Wed 31 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-06-04", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15185, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-06-04T00:34:23+03:00", "utc": "1933-06-03T21:34:23Z", "ms": -1154312736708.793 }, "end": { "local": "1933-06-04T22:16:36+03:00", "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": "1933-06-04T00:34:23+03:00", "utc": "1933-06-03T21:34:23Z", "ms": -1154312736708.793 }, "end": { "local": "1933-06-04T22:16:36+03:00", "utc": "1933-06-04T19:16:36Z", "ms": -1154234603594.4546 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-06-04", "window": { "start": { "local": "1933-06-04T04:47:28+03:00", "utc": "1933-06-04T01:47:28Z", "ms": -1154297551949.2017 }, "end": { "local": "1933-06-04T04:47:28+03:00", "utc": "1933-06-04T01:47:28Z", "ms": -1154297551949.2017 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-06-05", "window": { "start": { "local": "1933-06-05T04:47:12+03:00", "utc": "1933-06-05T01:47:12Z", "ms": -1154211167574.4895 }, "end": { "local": "1933-06-05T04:47:12+03:00", "utc": "1933-06-05T01:47:12Z", "ms": -1154211167574.4895 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:34 on Sun 4 Jun to 22:17 on Sun 4 Jun.", "fact": "1933-06-03T21:34:23Z → 1933-06-04T19:16:36Z" }, { "step": "kaala", "text": "Sunrise is at 04:47 on the 4th and 04:47 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15185 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Erbil, 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 Erbil, Nirjalā Ekādaśī 1933 falls on Sunday 4 June. Ekādaśī runs from 00:34 on Sun 4 Jun to 22:17 on Sun 4 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24785, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-06-04T22:16:36+03:00", "utc": "1933-06-04T19:16:36Z", "ms": -1154234603594.4546 }, "end": { "local": "1933-06-05T19:19:23+03:00", "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": "1933-06-04T22:16:36+03:00", "utc": "1933-06-04T19:16:36Z", "ms": -1154234603594.4546 }, "end": { "local": "1933-06-05T19:19:23+03:00", "utc": "1933-06-05T16:19:23Z", "ms": -1154158836739.9253 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-04", "window": { "start": { "local": "1933-06-04T11:38:08+03:00", "utc": "1933-06-04T08:38:08Z", "ms": -1154272911721.6663 }, "end": { "local": "1933-06-04T12:26:08+03:00", "utc": "1933-06-04T09:26:08Z", "ms": -1154270031721.6663 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-06-05", "window": { "start": { "local": "1933-06-05T11:38:18+03:00", "utc": "1933-06-05T08:38:18Z", "ms": -1154186502009.6204 }, "end": { "local": "1933-06-05T12:26:18+03:00", "utc": "1933-06-05T09:26:18Z", "ms": -1154183622009.6204 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 22:17 on Sun 4 Jun to 19:19 on Mon 5 Jun.", "fact": "1933-06-04T19:16:36Z → 1933-06-05T16:19:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 4th, 11:38–12:26 on the 5th.", "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 4th and 48 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: purvaviddha → only-day · margin 24785 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Erbil, 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 Erbil, Śrī Rāma Dvādaśī 1933 falls on Monday 5 June. Dvādaśī runs from 22:17 on Sun 4 Jun to 19:19 on Mon 5 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-06-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-05", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 120, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-06-05T19:19:23+03:00", "utc": "1933-06-05T16:19:23Z", "ms": -1154158836739.9253 }, "end": { "local": "1933-06-06T15:51:22+03:00", "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": "1933-06-05T19:19:23+03:00", "utc": "1933-06-05T16:19:23Z", "ms": -1154158836739.9253 }, "end": { "local": "1933-06-06T15:51:22+03:00", "utc": "1933-06-06T12:51:22Z", "ms": -1154084918159.0088 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-06-05", "window": { "start": { "local": "1933-06-05T19:17:24+03:00", "utc": "1933-06-05T16:17:24Z", "ms": -1154158956444.7512 }, "end": { "local": "1933-06-05T20:33:20+03:00", "utc": "1933-06-05T17:33:20Z", "ms": -1154154399785.1548 } }, "covered_min": 74, "window_min": 76, "qualifies": true }, { "local_date": "1933-06-06", "window": { "start": { "local": "1933-06-06T19:17:58+03:00", "utc": "1933-06-06T16:17:58Z", "ms": -1154072522467.9102 }, "end": { "local": "1933-06-06T20:33:48+03:00", "utc": "1933-06-06T17:33:48Z", "ms": -1154067971967.8535 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:19 on Mon 5 Jun to 15:51 on Tue 6 Jun.", "fact": "1933-06-05T16:19:23Z → 1933-06-06T12:51:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:17–20:33 on the 5th, 19:18–20:34 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 74 of 76 minutes on the 5th and 0 of 76 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 120 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 1933: Monday 5 June.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-05", "confidence": "boundary" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 1933 falls on Monday 5 June. Trayodaśī runs from 19:19 on Mon 5 Jun to 15:51 on Tue 6 Jun and covers 74 of 76 minutes of pradoṣa that evening. It is 2 min 00 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/1933/pradosha-vrata?on=1933-06-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26146, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-06-07T12:02:44+03:00", "utc": "1933-06-07T09:02:44Z", "ms": -1154012235891.007 }, "end": { "local": "1933-06-08T08:04:36+03:00", "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": "1933-06-07T12:02:44+03:00", "utc": "1933-06-07T09:02:44Z", "ms": -1154012235891.007 }, "end": { "local": "1933-06-08T08:04:36+03:00", "utc": "1933-06-08T05:04:36Z", "ms": -1153940124400.6794 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-06-07", "window": { "start": { "local": "1933-06-07T19:18:30+03:00", "utc": "1933-06-07T16:18:30Z", "ms": -1153986089593.7148 }, "end": { "local": "1933-06-07T20:34:15+03:00", "utc": "1933-06-07T17:34:15Z", "ms": -1153981544878.8657 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1933-06-08", "window": { "start": { "local": "1933-06-08T19:19:02+03:00", "utc": "1933-06-08T16:19:02Z", "ms": -1153899657851.6045 }, "end": { "local": "1933-06-08T20:34:41+03:00", "utc": "1933-06-08T17:34:41Z", "ms": -1153895118543.575 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 12:03 on Wed 7 Jun to 08:05 on Thu 8 Jun.", "fact": "1933-06-07T09:02:44Z → 1933-06-08T05:04:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:19–20:34 on the 7th, 19:19–20:35 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 76 of 76 minutes on the 7th and 0 of 76 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 26146 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Erbil, 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 Erbil, Vaṭa Sāvitrī Vrata 1933 falls on Wednesday 7 June. Pūrṇimā runs from 12:03 on Wed 7 Jun to 08:05 on Thu 8 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-06-10", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3333, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-06-10T21:06:04+03:00", "utc": "1933-06-10T18:06:04Z", "ms": -1153720436030.8499 }, "end": { "local": "1933-06-11T18:20:02+03:00", "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": "1933-06-10T21:06:04+03:00", "utc": "1933-06-10T18:06:04Z", "ms": -1153720436030.8499 }, "end": { "local": "1933-06-11T18:20:02+03:00", "utc": "1933-06-11T15:20:02Z", "ms": -1153643998187.7415 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-06-10", "window": { "start": { "local": "1933-06-10T22:01:37+03:00", "utc": "1933-06-10T19:01:37Z", "ms": -1153717103089.3337 }, "end": { "local": "1933-06-10T22:01:37+03:00", "utc": "1933-06-10T19:01:37Z", "ms": -1153717103089.3337 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-06-11", "window": { "start": { "local": "1933-06-11T22:42:02+03:00", "utc": "1933-06-11T19:42:02Z", "ms": -1153628278029.7102 }, "end": { "local": "1933-06-11T22:42:02+03:00", "utc": "1933-06-11T19:42:02Z", "ms": -1153628278029.7102 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:06 on Sat 10 Jun to 18:20 on Sun 11 Jun.", "fact": "1933-06-10T18:06:04Z → 1933-06-11T15:20:02Z" }, { "step": "kaala", "text": "Moonrise is at 22:02 on the 10th and 22:42 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 3333 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 1933: Saturday 10 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": "1933-06-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-10", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī 1933 falls on Saturday 10 June. Caturthī runs from 21:06 on Sat 10 Jun to 18:20 on Sun 11 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/1933/sankashta-chaturthi?on=1933-06-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/ekadashi?on=1933-06-18", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35182, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-06-17T17:04:23+03:00", "utc": "1933-06-17T14:04:23Z", "ms": -1153130136650.9304 }, "end": { "local": "1933-06-18T19:00:10+03:00", "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": "1933-06-17T17:04:23+03:00", "utc": "1933-06-17T14:04:23Z", "ms": -1153130136650.9304 }, "end": { "local": "1933-06-18T19:00:10+03:00", "utc": "1933-06-18T16:00:10Z", "ms": -1153036790383.3506 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-06-18", "window": { "start": { "local": "1933-06-18T04:46:24+03:00", "utc": "1933-06-18T01:46:24Z", "ms": -1153088016086.5588 }, "end": { "local": "1933-06-18T04:46:24+03:00", "utc": "1933-06-18T01:46:24Z", "ms": -1153088016086.5588 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-06-19", "window": { "start": { "local": "1933-06-19T04:46:32+03:00", "utc": "1933-06-19T01:46:32Z", "ms": -1153001608144.499 }, "end": { "local": "1933-06-19T04:46:32+03:00", "utc": "1933-06-19T01:46:32Z", "ms": -1153001608144.499 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:04 on Sat 17 Jun to 19:00 on Sun 18 Jun.", "fact": "1933-06-17T14:04:23Z → 1933-06-18T16:00:10Z" }, { "step": "kaala", "text": "Sunrise is at 04:46 on the 18th and 04:47 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 35182 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Erbil, 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 Erbil, Yoginī Ekādaśī 1933 falls on Sunday 18 June. Ekādaśī runs from 17:04 on Sat 17 Jun to 19:00 on Sun 18 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-06-20", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2059, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-06-19T21:12:53+03:00", "utc": "1933-06-19T18:12:53Z", "ms": -1152942427338.0403 }, "end": { "local": "1933-06-20T23:34:49+03:00", "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": "1933-06-19T21:12:53+03:00", "utc": "1933-06-19T18:12:53Z", "ms": -1152942427338.0403 }, "end": { "local": "1933-06-20T23:34:49+03:00", "utc": "1933-06-20T20:34:49Z", "ms": -1152847510558.768 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-06-19", "window": { "start": { "local": "1933-06-19T19:23:28+03:00", "utc": "1933-06-19T16:23:28Z", "ms": -1152948992258.6162 }, "end": { "local": "1933-06-19T20:38:34+03:00", "utc": "1933-06-19T17:38:34Z", "ms": -1152944486439.0596 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "1933-06-20", "window": { "start": { "local": "1933-06-20T19:23:43+03:00", "utc": "1933-06-20T16:23:43Z", "ms": -1152862576531.9646 }, "end": { "local": "1933-06-20T20:38:49+03:00", "utc": "1933-06-20T17:38:49Z", "ms": -1152858071329.4536 } }, "covered_min": 75, "window_min": 75, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:13 on Mon 19 Jun to 23:35 on Tue 20 Jun.", "fact": "1933-06-19T18:12:53Z → 1933-06-20T20:34:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:23–20:39 on the 19th, 19:24–20:39 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 0 of 75 minutes on the 19th and 75 of 75 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 2059 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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": "boundary" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Tuesday 20 June. Trayodaśī runs from 21:13 on Mon 19 Jun to 23:35 on Tue 20 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-06-20", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-20", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 389, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-06-20T23:34:49+03:00", "utc": "1933-06-20T20:34:49Z", "ms": -1152847510558.768 }, "end": { "local": "1933-06-22T01:59:39+03:00", "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": "1933-06-20T23:34:49+03:00", "utc": "1933-06-20T20:34:49Z", "ms": -1152847510558.768 }, "end": { "local": "1933-06-22T01:59:39+03:00", "utc": "1933-06-21T22:59:39Z", "ms": -1152752421398.1328 } }, "kaala": "nishita", "days": [ { "local_date": "1933-06-20", "window": { "start": { "local": "1933-06-20T23:41:18+03:00", "utc": "1933-06-20T20:41:18Z", "ms": -1152847122022.5479 }, "end": { "local": "1933-06-21T00:29:18+03:00", "utc": "1933-06-20T21:29:18Z", "ms": -1152844242022.5479 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-06-21", "window": { "start": { "local": "1933-06-21T23:41:31+03:00", "utc": "1933-06-21T20:41:31Z", "ms": -1152760708606.6904 }, "end": { "local": "1933-06-22T00:29:31+03:00", "utc": "1933-06-21T21:29:31Z", "ms": -1152757828606.6904 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:35 on Tue 20 Jun to 02:00 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: 23:41–00:29 on the 20th, 23:42–00:30 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 48 of 48 on the 21st.", "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 389 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 1933: Tuesday 20 June.", "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": "1933-06-20", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-20", "confidence": "boundary" } ], "quote": "In Erbil, Śivarātri 1933 falls on Tuesday 20 June. Caturdaśī runs from 23:35 on Tue 20 Jun to 02:00 on Thu 22 Jun 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/erbil/festivals/1933/shivaratri?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": "/erbil/festivals/1933/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10771, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1933-06-24T06:38:03+03:00", "utc": "1933-06-24T03:38:03Z", "ms": -1152562916552.6995 }, "end": { "local": "1933-06-25T08:42:44+03:00", "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": "1933-06-24T06:38:03+03:00", "utc": "1933-06-24T03:38:03Z", "ms": -1152562916552.6995 }, "end": { "local": "1933-06-25T08:42:44+03:00", "utc": "1933-06-25T05:42:44Z", "ms": -1152469035748.632 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-24", "window": { "start": { "local": "1933-06-24T11:42:03+03:00", "utc": "1933-06-24T08:42:03Z", "ms": -1152544677160.1345 }, "end": { "local": "1933-06-24T12:30:03+03:00", "utc": "1933-06-24T09:30:03Z", "ms": -1152541797160.1345 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-06-25", "window": { "start": { "local": "1933-06-25T11:42:15+03:00", "utc": "1933-06-25T08:42:15Z", "ms": -1152458264718.1519 }, "end": { "local": "1933-06-25T12:30:15+03:00", "utc": "1933-06-25T09:30:15Z", "ms": -1152455384718.1519 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 06:38 on Sat 24 Jun to 08:43 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: 11:42–12:30 on the 24th, 11:42–12:30 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 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10771 s" }, { "step": "ruling", "text": "Rathayātrā, Erbil, 1933: Saturday 24 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": "1933-06-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-24", "confidence": "determinate" } ], "quote": "In Erbil, Rathayātrā 1933 falls on Saturday 24 June. Dvitīyā runs from 06:38 on Sat 24 Jun to 08:43 on Sun 25 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-06-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-26", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 899, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-06-26T10:31:12+03:00", "utc": "1933-06-26T07:31:12Z", "ms": -1152376127544.4282 }, "end": { "local": "1933-06-27T11:57:39+03:00", "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": "1933-06-26T10:31:12+03:00", "utc": "1933-06-26T07:31:12Z", "ms": -1152376127544.4282 }, "end": { "local": "1933-06-27T11:57:39+03:00", "utc": "1933-06-27T08:57:39Z", "ms": -1152284540742.342 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-26", "window": { "start": { "local": "1933-06-26T11:42:28+03:00", "utc": "1933-06-26T08:42:28Z", "ms": -1152371852394.1504 }, "end": { "local": "1933-06-26T12:30:28+03:00", "utc": "1933-06-26T09:30:28Z", "ms": -1152368972394.1504 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-06-27", "window": { "start": { "local": "1933-06-27T11:42:40+03:00", "utc": "1933-06-27T08:42:40Z", "ms": -1152285440214.4219 }, "end": { "local": "1933-06-27T12:30:40+03:00", "utc": "1933-06-27T09:30:40Z", "ms": -1152282560214.4219 } }, "covered_min": 15, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:31 on Mon 26 Jun to 11:58 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: 11:42–12:30 on the 26th, 11:43–12:31 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 15 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "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 899 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 1933: Monday 26 June.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1933-06-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-26", "confidence": "boundary" } ], "quote": "In Erbil, Vināyaka Caturthī 1933 falls on Monday 26 June. Caturthī runs from 10:31 on Mon 26 Jun to 11:58 on Tue 27 Jun and covers all of madhyāhna that midday. It also reaches the next midday for 15 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/1933/vinayaka-chaturthi?on=1933-06-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 899, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-06-27T11:57:39+03:00", "utc": "1933-06-27T08:57:39Z", "ms": -1152284540742.342 }, "end": { "local": "1933-06-28T12:55:46+03:00", "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": "1933-06-27T11:57:39+03:00", "utc": "1933-06-27T08:57:39Z", "ms": -1152284540742.342 }, "end": { "local": "1933-06-28T12:55:46+03:00", "utc": "1933-06-28T09:55:46Z", "ms": -1152194653878.0532 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-27", "window": { "start": { "local": "1933-06-27T11:42:40+03:00", "utc": "1933-06-27T08:42:40Z", "ms": -1152285440214.4219 }, "end": { "local": "1933-06-27T12:30:40+03:00", "utc": "1933-06-27T09:30:40Z", "ms": -1152282560214.4219 } }, "covered_min": 33, "window_min": 48, "qualifies": true }, { "local_date": "1933-06-28", "window": { "start": { "local": "1933-06-28T11:42:52+03:00", "utc": "1933-06-28T08:42:52Z", "ms": -1152199028204.6958 }, "end": { "local": "1933-06-28T12:30:52+03:00", "utc": "1933-06-28T09:30:52Z", "ms": -1152196148204.6958 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 11:58 on Tue 27 Jun to 12:56 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: 11:43–12:31 on the 27th, 11:43–12:31 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 33 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": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 899 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Erbil, 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 Erbil, Skanda Pañcamī 1933 falls on Wednesday 28 June. Pañcamī runs from 11:58 on Tue 27 Jun to 12:56 on Wed 28 Jun and covers all of madhyāhna that midday. It also reaches the previous midday for 33 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-06-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1958, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-06-29T13:19:28+03:00", "utc": "1933-06-29T10:19:28Z", "ms": -1152106831637.3582 }, "end": { "local": "1933-06-30T13:03:53+03:00", "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": "1933-06-29T13:19:28+03:00", "utc": "1933-06-29T10:19:28Z", "ms": -1152106831637.3582 }, "end": { "local": "1933-06-30T13:03:53+03:00", "utc": "1933-06-30T10:03:53Z", "ms": -1152021366750.895 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-29", "window": { "start": { "local": "1933-06-29T11:43:04+03:00", "utc": "1933-06-29T08:43:04Z", "ms": -1152112616389.9663 }, "end": { "local": "1933-06-29T12:31:04+03:00", "utc": "1933-06-29T09:31:04Z", "ms": -1152109736389.9663 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-06-30", "window": { "start": { "local": "1933-06-30T11:43:15+03:00", "utc": "1933-06-30T08:43:15Z", "ms": -1152026204794.313 }, "end": { "local": "1933-06-30T12:31:15+03:00", "utc": "1933-06-30T09:31:15Z", "ms": -1152023324794.313 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 13:19 on Thu 29 Jun to 13:04 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: 11:43–12:31 on the 29th, 11:43–12:31 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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 1958 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Erbil, 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": "1933-06-29", "confidence": "determinate" } ], "quote": "In Erbil, Vivasvat Saptamī 1933 falls on Friday 30 June. Saptamī runs from 13:19 on Thu 29 Jun to 13:04 on Fri 30 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-07-04", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1364, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-07-03T08:07:19+03:00", "utc": "1933-07-03T05:07:19Z", "ms": -1151779960675.7185 }, "end": { "local": "1933-07-04T05:14:10+03:00", "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": "1933-07-03T08:07:19+03:00", "utc": "1933-07-03T05:07:19Z", "ms": -1151779960675.7185 }, "end": { "local": "1933-07-04T05:14:10+03:00", "utc": "1933-07-04T02:14:10Z", "ms": -1151703949720.4014 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-07-03", "window": { "start": { "local": "1933-07-03T04:50:57+03:00", "utc": "1933-07-03T01:50:57Z", "ms": -1151791742868.9321 }, "end": { "local": "1933-07-03T04:50:57+03:00", "utc": "1933-07-03T01:50:57Z", "ms": -1151791742868.9321 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-07-04", "window": { "start": { "local": "1933-07-04T04:51:26+03:00", "utc": "1933-07-04T01:51:26Z", "ms": -1151705314185.118 }, "end": { "local": "1933-07-04T04:51:26+03:00", "utc": "1933-07-04T01:51:26Z", "ms": -1151705314185.118 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:07 on Mon 3 Jul to 05:14 on Tue 4 Jul.", "fact": "1933-07-03T05:07:19Z → 1933-07-04T02:14:10Z" }, { "step": "kaala", "text": "Sunrise is at 04:51 on the 3rd and 04:51 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 1364 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Erbil, 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 Erbil, Hariśayanī Ekādaśī 1933 falls on Tuesday 4 July. Ekādaśī runs from 08:07 on Mon 3 Jul to 05:14 on Tue 4 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-07-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5827, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-07-05T01:54:29+03:00", "utc": "1933-07-04T22:54:29Z", "ms": -1151629531326.7166 }, "end": { "local": "1933-07-05T22:17:14+03:00", "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": "1933-07-05T01:54:29+03:00", "utc": "1933-07-04T22:54:29Z", "ms": -1151629531326.7166 }, "end": { "local": "1933-07-05T22:17:14+03:00", "utc": "1933-07-05T19:17:14Z", "ms": -1151556165845.5854 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-07-04", "window": { "start": { "local": "1933-07-04T19:24:32+03:00", "utc": "1933-07-04T16:24:32Z", "ms": -1151652927896.2864 }, "end": { "local": "1933-07-04T20:40:11+03:00", "utc": "1933-07-04T17:40:11Z", "ms": -1151648388761.1533 } }, "covered_min": 0, "window_min": 76, "qualifies": false }, { "local_date": "1933-07-05", "window": { "start": { "local": "1933-07-05T19:24:23+03:00", "utc": "1933-07-05T16:24:23Z", "ms": -1151566537329.347 }, "end": { "local": "1933-07-05T20:40:07+03:00", "utc": "1933-07-05T17:40:07Z", "ms": -1151561992818.0254 } }, "covered_min": 76, "window_min": 76, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:54 on Wed 5 Jul to 22:17 on Wed 5 Jul.", "fact": "1933-07-04T22:54:29Z → 1933-07-05T19:17:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:25–20:40 on the 4th, 19:24–20:40 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 76 minutes on the 4th and 76 of 76 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 5827 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Wednesday 5 July. Trayodaśī runs from 01:54 on Wed 5 Jul to 22:17 on Wed 5 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3106, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-07-06T18:32:25+03:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T14:50:29+03:00", "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": "1933-07-06T18:32:25+03:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T14:50:29+03:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 } }, "kaala": "sayahna", "days": [ { "local_date": "1933-07-06", "window": { "start": { "local": "1933-07-06T16:29:50+03:00", "utc": "1933-07-06T13:29:50Z", "ms": -1151490609513.214 }, "end": { "local": "1933-07-06T19:24:11+03:00", "utc": "1933-07-06T16:24:11Z", "ms": -1151480148517.909 } }, "covered_min": 52, "window_min": 174, "qualifies": true }, { "local_date": "1933-07-07", "window": { "start": { "local": "1933-07-07T16:29:47+03:00", "utc": "1933-07-07T13:29:47Z", "ms": -1151404213477.6138 }, "end": { "local": "1933-07-07T19:23:59+03:00", "utc": "1933-07-07T16:23:59Z", "ms": -1151393761459.1538 } }, "covered_min": 0, "window_min": 174, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:32 on Thu 6 Jul to 14:50 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: 16:30–19:24 on the 6th, 16:30–19:24 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 52 of 174 minutes on the 6th and 0 of 174 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 3106 s" }, { "step": "ruling", "text": "Kokilā Vrata, Erbil, 1933: Thursday 6 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": "1933-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-06", "confidence": "determinate" } ], "quote": "In Erbil, Kokilā Vrata 1933 falls on Thursday 6 July. Pūrṇimā runs from 18:32 on Thu 6 Jul to 14:50 on Fri 7 Jul and covers 52 of 174 minutes of sāyāhna that late afternoon.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3106, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-07-06T18:32:25+03:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T14:50:29+03:00", "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": "1933-07-06T18:32:25+03:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T14:50:29+03:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-07-06", "window": { "start": { "local": "1933-07-06T19:24:11+03:00", "utc": "1933-07-06T16:24:11Z", "ms": -1151480148517.909 }, "end": { "local": "1933-07-06T20:40:02+03:00", "utc": "1933-07-06T17:40:02Z", "ms": -1151475598255.7148 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1933-07-07", "window": { "start": { "local": "1933-07-07T19:23:59+03:00", "utc": "1933-07-07T16:23:59Z", "ms": -1151393761459.1538 }, "end": { "local": "1933-07-07T20:39:55+03:00", "utc": "1933-07-07T17:39:55Z", "ms": -1151389205075.829 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:32 on Thu 6 Jul to 14:50 on Fri 7 Jul.", "fact": "1933-07-06T15:32:25Z → 1933-07-07T11:50:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:24–20:40 on the 6th, 19:24–20:40 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 76 of 76 minutes on the 6th and 0 of 76 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 3106 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Erbil, 1933: Thursday 6 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": "1933-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-06", "confidence": "determinate" } ], "quote": "In Erbil, Śiva Śayanotsava 1933 falls on Thursday 6 July. Pūrṇimā runs from 18:32 on Thu 6 Jul to 14:50 on Fri 7 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25398, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-07-06T18:32:25+03:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T14:50:29+03:00", "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": "1933-07-06T18:32:25+03:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T14:50:29+03:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 } }, "kaala": "udaya-3", "days": [ { "local_date": "1933-07-06", "window": { "start": { "local": "1933-07-06T04:52:27+03:00", "utc": "1933-07-06T01:52:27Z", "ms": -1151532453494.4346 }, "end": { "local": "1933-07-06T07:46:48+03:00", "utc": "1933-07-06T04:46:48Z", "ms": -1151521992499.1294 } }, "covered_min": 0, "window_min": 174, "qualifies": false }, { "local_date": "1933-07-07", "window": { "start": { "local": "1933-07-07T04:52:58+03:00", "utc": "1933-07-07T01:52:58Z", "ms": -1151446021551.4539 }, "end": { "local": "1933-07-07T07:47:10+03:00", "utc": "1933-07-07T04:47:10Z", "ms": -1151435569532.994 } }, "covered_min": 174, "window_min": 174, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:32 on Thu 6 Jul to 14:50 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: 04:52–07:47 on the 6th, 04:53–07:47 on the 7th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 0 of 174 minutes on the 6th and 174 of 174 on the 7th.", "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 25398 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Erbil, 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 Erbil, Vyāsa Pūjā 1933 falls on Friday 7 July. Pūrṇimā runs from 18:32 on Thu 6 Jul to 14:50 on Fri 7 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8280, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-07-06T18:32:25+03:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T14:50:29+03:00", "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": "1933-07-06T18:32:25+03:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T14:50:29+03:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-07-06", "window": { "start": { "local": "1933-07-06T11:44:19+03:00", "utc": "1933-07-06T08:44:19Z", "ms": -1151507741006.1719 }, "end": { "local": "1933-07-06T12:32:19+03:00", "utc": "1933-07-06T09:32:19Z", "ms": -1151504861006.1719 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-07-07", "window": { "start": { "local": "1933-07-07T11:44:28+03:00", "utc": "1933-07-07T08:44:28Z", "ms": -1151421331505.3037 }, "end": { "local": "1933-07-07T12:32:28+03:00", "utc": "1933-07-07T09:32:28Z", "ms": -1151418451505.3037 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:32 on Thu 6 Jul to 14:50 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: 11:44–12:32 on the 6th, 11:44–12:32 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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 8280 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Erbil, 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 Erbil, Guru Pūrṇimā 1933 falls on Friday 7 July. Pūrṇimā runs from 18:32 on Thu 6 Jul to 14:50 on Fri 7 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33136, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1933-07-08T11:21:54+03:00", "utc": "1933-07-08T08:21:54Z", "ms": -1151336285688.0938 }, "end": { "local": "1933-07-09T08:16:46+03:00", "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": "1933-07-08T11:21:54+03:00", "utc": "1933-07-08T08:21:54Z", "ms": -1151336285688.0938 }, "end": { "local": "1933-07-09T08:16:46+03:00", "utc": "1933-07-09T05:16:46Z", "ms": -1151260993814.4219 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-07-08", "window": { "start": { "local": "1933-07-08T20:34:10+03:00", "utc": "1933-07-08T17:34:10Z", "ms": -1151303149989.4912 }, "end": { "local": "1933-07-08T20:34:10+03:00", "utc": "1933-07-08T17:34:10Z", "ms": -1151303149989.4912 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-07-09", "window": { "start": { "local": "1933-07-09T21:11:09+03:00", "utc": "1933-07-09T18:11:09Z", "ms": -1151214531047.0134 }, "end": { "local": "1933-07-09T21:11:09+03:00", "utc": "1933-07-09T18:11:09Z", "ms": -1151214531047.0134 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 11:22 on Sat 8 Jul to 08:17 on Sun 9 Jul.", "fact": "1933-07-08T08:21:54Z → 1933-07-09T05:16:46Z" }, { "step": "kaala", "text": "Moonrise is at 20:34 on the 8th and 21:11 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 33136 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Erbil, 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 Erbil, Aśūnya Śayana Vrata (Āṣāḍha) 1933 falls on Saturday 8 July. Dvitīyā runs from 11:22 on Sat 8 Jul to 08:17 on Sun 9 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-07-10", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22192, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-07-10T05:44:12+03:00", "utc": "1933-07-10T02:44:12Z", "ms": -1151183747904.2566 }, "end": { "local": "1933-07-11T03:51:47+03:00", "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": "1933-07-10T05:44:12+03:00", "utc": "1933-07-10T02:44:12Z", "ms": -1151183747904.2566 }, "end": { "local": "1933-07-11T03:51:47+03:00", "utc": "1933-07-11T00:51:47Z", "ms": -1151104093031.4512 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-07-09", "window": { "start": { "local": "1933-07-09T21:11:09+03:00", "utc": "1933-07-09T18:11:09Z", "ms": -1151214531047.0134 }, "end": { "local": "1933-07-09T21:11:09+03:00", "utc": "1933-07-09T18:11:09Z", "ms": -1151214531047.0134 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-07-10", "window": { "start": { "local": "1933-07-10T21:41:55+03:00", "utc": "1933-07-10T18:41:55Z", "ms": -1151126285210.388 }, "end": { "local": "1933-07-10T21:41:55+03:00", "utc": "1933-07-10T18:41:55Z", "ms": -1151126285210.388 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:44 on Mon 10 Jul to 03:52 on Tue 11 Jul.", "fact": "1933-07-10T02:44:12Z → 1933-07-11T00:51:47Z" }, { "step": "kaala", "text": "Moonrise is at 21:11 on the 9th and 21:42 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 9th and is on the 10th.", "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 22192 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 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 Erbil, Saṅkaṣṭa Caturthī 1933 falls on Monday 10 July. Caturthī runs from 05:44 on Mon 10 Jul to 03:52 on Tue 11 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-07-18", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10578, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-07-17T07:55:27+03:00", "utc": "1933-07-17T04:55:27Z", "ms": -1150571072618.0745 }, "end": { "local": "1933-07-18T10:17:11+03:00", "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": "1933-07-17T07:55:27+03:00", "utc": "1933-07-17T04:55:27Z", "ms": -1150571072618.0745 }, "end": { "local": "1933-07-18T10:17:11+03:00", "utc": "1933-07-18T07:17:11Z", "ms": -1150476168822.175 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-07-17", "window": { "start": { "local": "1933-07-17T04:59:09+03:00", "utc": "1933-07-17T01:59:09Z", "ms": -1150581650963.06 }, "end": { "local": "1933-07-17T04:59:09+03:00", "utc": "1933-07-17T01:59:09Z", "ms": -1150581650963.06 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-07-18", "window": { "start": { "local": "1933-07-18T04:59:50+03:00", "utc": "1933-07-18T01:59:50Z", "ms": -1150495209539.504 }, "end": { "local": "1933-07-18T04:59:50+03:00", "utc": "1933-07-18T01:59:50Z", "ms": -1150495209539.504 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:55 on Mon 17 Jul to 10:17 on Tue 18 Jul.", "fact": "1933-07-17T04:55:27Z → 1933-07-18T07:17:11Z" }, { "step": "kaala", "text": "Sunrise is at 04:59 on the 17th and 05:00 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 10578 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Erbil, 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 Erbil, Kāmikā Ekādaśī 1933 falls on Tuesday 18 July. Ekādaśī runs from 07:55 on Mon 17 Jul to 10:17 on Tue 18 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-07-19", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15364, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-07-19T12:42:22+03:00", "utc": "1933-07-19T09:42:22Z", "ms": -1150381058285.923 }, "end": { "local": "1933-07-20T15:02:29+03:00", "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": "1933-07-19T12:42:22+03:00", "utc": "1933-07-19T09:42:22Z", "ms": -1150381058285.923 }, "end": { "local": "1933-07-20T15:02:29+03:00", "utc": "1933-07-20T12:02:29Z", "ms": -1150286251047.7751 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-07-19", "window": { "start": { "local": "1933-07-19T19:19:08+03:00", "utc": "1933-07-19T16:19:08Z", "ms": -1150357251540.4243 }, "end": { "local": "1933-07-19T20:36:45+03:00", "utc": "1933-07-19T17:36:45Z", "ms": -1150352594641.1025 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1933-07-20", "window": { "start": { "local": "1933-07-20T19:18:33+03:00", "utc": "1933-07-20T16:18:33Z", "ms": -1150270886706.1829 }, "end": { "local": "1933-07-20T20:36:21+03:00", "utc": "1933-07-20T17:36:21Z", "ms": -1150266219352.2498 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:42 on Wed 19 Jul to 15:02 on Thu 20 Jul.", "fact": "1933-07-19T09:42:22Z → 1933-07-20T12:02:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:19–20:37 on the 19th, 19:19–20:36 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 78 of 78 minutes on the 19th and 0 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 15364 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 1933: Wednesday 19 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": "1933-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-19", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Wednesday 19 July. Trayodaśī runs from 12:42 on Wed 19 Jul to 15:02 on Thu 20 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-07-20", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23721, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-07-20T15:02:29+03:00", "utc": "1933-07-20T12:02:29Z", "ms": -1150286251047.7751 }, "end": { "local": "1933-07-21T17:10:59+03:00", "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": "1933-07-20T15:02:29+03:00", "utc": "1933-07-20T12:02:29Z", "ms": -1150286251047.7751 }, "end": { "local": "1933-07-21T17:10:59+03:00", "utc": "1933-07-21T14:10:59Z", "ms": -1150192141146.339 } }, "kaala": "nishita", "days": [ { "local_date": "1933-07-20", "window": { "start": { "local": "1933-07-20T23:46:16+03:00", "utc": "1933-07-20T20:46:16Z", "ms": -1150254824128.9336 }, "end": { "local": "1933-07-21T00:34:16+03:00", "utc": "1933-07-20T21:34:16Z", "ms": -1150251944128.9336 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-07-21", "window": { "start": { "local": "1933-07-21T23:46:19+03:00", "utc": "1933-07-21T20:46:19Z", "ms": -1150168420645.0132 }, "end": { "local": "1933-07-22T00:34:19+03:00", "utc": "1933-07-21T21:34:19Z", "ms": -1150165540645.0132 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:02 on Thu 20 Jul to 17:11 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: 23:46–00:34 on the 20th, 23:46–00:34 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 23721 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 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 Erbil, Śivarātri 1933 falls on Thursday 20 July. Caturdaśī runs from 15:02 on Thu 20 Jul to 17:11 on Fri 21 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33033, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-07-24T21:44:37+03:00", "utc": "1933-07-24T18:44:37Z", "ms": -1149916523396.411 }, "end": { "local": "1933-07-25T22:28:50+03:00", "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": "1933-07-24T21:44:37+03:00", "utc": "1933-07-24T18:44:37Z", "ms": -1149916523396.411 }, "end": { "local": "1933-07-25T22:28:50+03:00", "utc": "1933-07-25T19:28:50Z", "ms": -1149827470089.9912 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-07-24", "window": { "start": { "local": "1933-07-24T11:46:04+03:00", "utc": "1933-07-24T08:46:04Z", "ms": -1149952436211.4053 }, "end": { "local": "1933-07-24T12:34:04+03:00", "utc": "1933-07-24T09:34:04Z", "ms": -1149949556211.4053 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-07-25", "window": { "start": { "local": "1933-07-25T11:46:05+03:00", "utc": "1933-07-25T08:46:05Z", "ms": -1149866035252.5615 }, "end": { "local": "1933-07-25T12:34:05+03:00", "utc": "1933-07-25T09:34:05Z", "ms": -1149863155252.5615 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:45 on Mon 24 Jul to 22:29 on Tue 25 Jul.", "fact": "1933-07-24T18:44:37Z → 1933-07-25T19:28:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 24th, 11:46–12:34 on the 25th.", "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 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33033 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Erbil, 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 Erbil, Madhusravā Tṛtīyā (Hariyali Teej) 1933 falls on Tuesday 25 July. Tṛtīyā runs from 21:45 on Mon 24 Jul to 22:29 on Tue 25 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-07-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35685, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-07-25T22:28:50+03:00", "utc": "1933-07-25T19:28:50Z", "ms": -1149827470089.9912 }, "end": { "local": "1933-07-26T22:45:32+03:00", "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": "1933-07-25T22:28:50+03:00", "utc": "1933-07-25T19:28:50Z", "ms": -1149827470089.9912 }, "end": { "local": "1933-07-26T22:45:32+03:00", "utc": "1933-07-26T19:45:32Z", "ms": -1149740068202.8093 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-07-25", "window": { "start": { "local": "1933-07-25T11:46:05+03:00", "utc": "1933-07-25T08:46:05Z", "ms": -1149866035252.5615 }, "end": { "local": "1933-07-25T12:34:05+03:00", "utc": "1933-07-25T09:34:05Z", "ms": -1149863155252.5615 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-07-26", "window": { "start": { "local": "1933-07-26T11:46:05+03:00", "utc": "1933-07-26T08:46:05Z", "ms": -1149779634883.7808 }, "end": { "local": "1933-07-26T12:34:05+03:00", "utc": "1933-07-26T09:34:05Z", "ms": -1149776754883.7808 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:29 on Tue 25 Jul to 22:46 on Wed 26 Jul.", "fact": "1933-07-25T19:28:50Z → 1933-07-26T19:45:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 25th, 11:46–12:34 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35685 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 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 Erbil, Vināyaka Caturthī 1933 falls on Wednesday 26 July. Caturthī runs from 22:29 on Tue 25 Jul to 22:46 on Wed 26 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35913, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-07-26T22:45:32+03:00", "utc": "1933-07-26T19:45:32Z", "ms": -1149740068202.8093 }, "end": { "local": "1933-07-27T22:32:38+03:00", "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": "1933-07-26T22:45:32+03:00", "utc": "1933-07-26T19:45:32Z", "ms": -1149740068202.8093 }, "end": { "local": "1933-07-27T22:32:38+03:00", "utc": "1933-07-27T19:32:38Z", "ms": -1149654442440.2314 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-07-26", "window": { "start": { "local": "1933-07-26T11:46:05+03:00", "utc": "1933-07-26T08:46:05Z", "ms": -1149779634883.7808 }, "end": { "local": "1933-07-26T12:34:05+03:00", "utc": "1933-07-26T09:34:05Z", "ms": -1149776754883.7808 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-07-27", "window": { "start": { "local": "1933-07-27T11:46:05+03:00", "utc": "1933-07-27T08:46:05Z", "ms": -1149693235113.0771 }, "end": { "local": "1933-07-27T12:34:05+03:00", "utc": "1933-07-27T09:34:05Z", "ms": -1149690355113.0771 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:46 on Wed 26 Jul to 22:33 on Thu 27 Jul.", "fact": "1933-07-26T19:45:32Z → 1933-07-27T19:32:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 26th, 11:46–12:34 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35913 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Erbil, 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 Erbil, Nāga Pañcamī 1933 falls on Thursday 27 July. Pañcamī runs from 22:46 on Wed 26 Jul to 22:33 on Thu 27 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-08-02", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20693, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-08-01T13:53:18+03:00", "utc": "1933-08-01T10:53:18Z", "ms": -1149253602043.6113 }, "end": { "local": "1933-08-02T10:56:02+03:00", "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": "1933-08-01T13:53:18+03:00", "utc": "1933-08-01T10:53:18Z", "ms": -1149253602043.6113 }, "end": { "local": "1933-08-02T10:56:02+03:00", "utc": "1933-08-02T07:56:02Z", "ms": -1149177838333.3865 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-08-01", "window": { "start": { "local": "1933-08-01T05:10:21+03:00", "utc": "1933-08-01T02:10:21Z", "ms": -1149284978720.6836 }, "end": { "local": "1933-08-01T05:10:21+03:00", "utc": "1933-08-01T02:10:21Z", "ms": -1149284978720.6836 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-08-02", "window": { "start": { "local": "1933-08-02T05:11:09+03:00", "utc": "1933-08-02T02:11:09Z", "ms": -1149198531383.0808 }, "end": { "local": "1933-08-02T05:11:09+03:00", "utc": "1933-08-02T02:11:09Z", "ms": -1149198531383.0808 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:53 on Tue 1 Aug to 10:56 on Wed 2 Aug.", "fact": "1933-08-01T10:53:18Z → 1933-08-02T07:56:02Z" }, { "step": "kaala", "text": "Sunrise is at 05:10 on the 1st and 05:11 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 20693 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Erbil, 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 Erbil, Putradā Ekādaśī 1933 falls on Wednesday 2 August. Ekādaśī runs from 13:53 on Tue 1 Aug to 10:56 on Wed 2 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2989, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-08-02T10:56:02+03:00", "utc": "1933-08-02T07:56:02Z", "ms": -1149177838333.3865 }, "end": { "local": "1933-08-03T07:47:07+03:00", "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": "1933-08-02T10:56:02+03:00", "utc": "1933-08-02T07:56:02Z", "ms": -1149177838333.3865 }, "end": { "local": "1933-08-03T07:47:07+03:00", "utc": "1933-08-03T04:47:07Z", "ms": -1149102773268.5415 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-02", "window": { "start": { "local": "1933-08-02T11:45:51+03:00", "utc": "1933-08-02T08:45:51Z", "ms": -1149174849317.618 }, "end": { "local": "1933-08-02T12:33:51+03:00", "utc": "1933-08-02T09:33:51Z", "ms": -1149171969317.618 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-03", "window": { "start": { "local": "1933-08-03T11:45:46+03:00", "utc": "1933-08-03T08:45:46Z", "ms": -1149088453833.5337 }, "end": { "local": "1933-08-03T12:33:46+03:00", "utc": "1933-08-03T09:33:46Z", "ms": -1149085573833.5337 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:56 on Wed 2 Aug to 07:47 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: 11:46–12:34 on the 2nd, 11:46–12:34 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 0 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2989 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Erbil, 1933: Wednesday 2 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "damodara-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Buddha dvadasi, Damodara dvadasi (purvaviddha), Visnu-pavitraropana." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-02", "confidence": "determinate" } ], "quote": "In Erbil, Dāmodara Dvādaśī 1933 falls on Wednesday 2 August. Dvādaśī runs from 10:56 on Wed 2 Aug to 07:47 on Thu 3 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-08-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29165, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-08-03T07:47:07+03:00", "utc": "1933-08-03T04:47:07Z", "ms": -1149102773268.5415 }, "end": { "local": "1933-08-04T04:34:23+03:00", "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": "1933-08-03T07:47:07+03:00", "utc": "1933-08-03T04:47:07Z", "ms": -1149102773268.5415 }, "end": { "local": "1933-08-04T04:34:23+03:00", "utc": "1933-08-04T01:34:23Z", "ms": -1149027937447.7522 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-08-02", "window": { "start": { "local": "1933-08-02T19:08:33+03:00", "utc": "1933-08-02T16:08:33Z", "ms": -1149148287252.155 }, "end": { "local": "1933-08-02T20:29:00+03:00", "utc": "1933-08-02T17:29:00Z", "ms": -1149143460137.1929 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "1933-08-03", "window": { "start": { "local": "1933-08-03T19:07:36+03:00", "utc": "1933-08-03T16:07:36Z", "ms": -1149061943777.1287 }, "end": { "local": "1933-08-03T20:28:17+03:00", "utc": "1933-08-03T17:28:17Z", "ms": -1149057102774.8604 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:47 on Thu 3 Aug to 04:34 on Fri 4 Aug.", "fact": "1933-08-03T04:47:07Z → 1933-08-04T01:34:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:09–20:29 on the 2nd, 19:08–20:28 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 80 minutes on the 2nd and 81 of 81 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29165 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Thursday 3 August. Trayodaśī runs from 07:47 on Thu 3 Aug to 04:34 on Fri 4 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24171, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-08-05T01:26:15+03:00", "utc": "1933-08-04T22:26:15Z", "ms": -1148952824563.142 }, "end": { "local": "1933-08-05T22:31:28+03:00", "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": "1933-08-05T11:56:39+03:00", "utc": "1933-08-05T08:56:39Z", "ms": -1148915000976.8848 }, "end": { "local": "1933-08-05T22:31:28+03:00", "utc": "1933-08-05T19:31:28Z", "ms": -1148876912125.888 } }, "kaala": "day", "days": [ { "local_date": "1933-08-05", "window": { "start": { "local": "1933-08-05T05:13:31+03:00", "utc": "1933-08-05T02:13:31Z", "ms": -1148939188509.911 }, "end": { "local": "1933-08-06T05:14:19+03:00", "utc": "1933-08-06T02:14:19Z", "ms": -1148852740653.3862 } }, "covered_min": 635, "window_min": 1441, "qualifies": true }, { "local_date": "1933-08-06", "window": { "start": { "local": "1933-08-06T05:14:19+03:00", "utc": "1933-08-06T02:14:19Z", "ms": -1148852740653.3862 }, "end": { "local": "1933-08-07T05:15:07+03:00", "utc": "1933-08-07T02:15:07Z", "ms": -1148766292703.004 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:26 on Sat 5 Aug to 22:31 on Sat 5 Aug. Its second half begins at 11:57 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 05:14 on the 5th, and from 05:14 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 24171 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Erbil, 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 Erbil, Rakṣā Bandhana (Rakhi) 1933 falls on Saturday 5 August. The second half of Pūrṇimā runs from 11:57 on Sat 5 Aug to 22:31 on Sat 5 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35873, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-08-05T01:26:15+03:00", "utc": "1933-08-04T22:26:15Z", "ms": -1148952824563.142 }, "end": { "local": "1933-08-05T22:31:28+03:00", "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": "1933-08-05T01:26:15+03:00", "utc": "1933-08-04T22:26:15Z", "ms": -1148952824563.142 }, "end": { "local": "1933-08-05T22:31:28+03:00", "utc": "1933-08-05T19:31:28Z", "ms": -1148876912125.888 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-04", "window": { "start": { "local": "1933-08-04T11:45:41+03:00", "utc": "1933-08-04T08:45:41Z", "ms": -1149002058956.0366 }, "end": { "local": "1933-08-04T12:33:41+03:00", "utc": "1933-08-04T09:33:41Z", "ms": -1148999178956.0366 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-05", "window": { "start": { "local": "1933-08-05T11:45:35+03:00", "utc": "1933-08-05T08:45:35Z", "ms": -1148915664678.9204 }, "end": { "local": "1933-08-05T12:33:35+03:00", "utc": "1933-08-05T09:33:35Z", "ms": -1148912784678.9204 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:26 on Sat 5 Aug to 22:31 on Sat 5 Aug.", "fact": "1933-08-04T22:26:15Z → 1933-08-05T19:31:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 4th, 11:46–12:34 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35873 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Erbil, 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 Erbil, Ṛṣi Tarpaṇa 1933 falls on Saturday 5 August. Pūrṇimā runs from 01:26 on Sat 5 Aug to 22:31 on Sat 5 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-06", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1191, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1933-08-06T19:58:36+03:00", "utc": "1933-08-06T16:58:36Z", "ms": -1148799684214.37 }, "end": { "local": "1933-08-07T17:55:42+03:00", "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": "1933-08-06T19:58:36+03:00", "utc": "1933-08-06T16:58:36Z", "ms": -1148799684214.37 }, "end": { "local": "1933-08-07T17:55:42+03:00", "utc": "1933-08-07T14:55:42Z", "ms": -1148720658426.414 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-08-06", "window": { "start": { "local": "1933-08-06T19:38:45+03:00", "utc": "1933-08-06T16:38:45Z", "ms": -1148800875085.802 }, "end": { "local": "1933-08-06T19:38:45+03:00", "utc": "1933-08-06T16:38:45Z", "ms": -1148800875085.802 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-08-07", "window": { "start": { "local": "1933-08-07T20:07:41+03:00", "utc": "1933-08-07T17:07:41Z", "ms": -1148712738790.4446 }, "end": { "local": "1933-08-07T20:07:41+03:00", "utc": "1933-08-07T17:07:41Z", "ms": -1148712738790.4446 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 19:59 on Sun 6 Aug to 17:56 on Mon 7 Aug.", "fact": "1933-08-06T16:58:36Z → 1933-08-07T14:55:42Z" }, { "step": "kaala", "text": "Moonrise is at 19:39 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 not on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1191 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Erbil, 1933: Sunday 6 August.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "1933-08-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-06", "confidence": "boundary" } ], "quote": "In Erbil, Aśūnya Śayana Vrata 1933 falls on Sunday 6 August. Dvitīyā runs from 19:59 on Sun 6 Aug to 17:56 on Mon 7 Aug, and is current at moonrise on neither day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14186, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-08-07T17:55:42+03:00", "utc": "1933-08-07T14:55:42Z", "ms": -1148720658426.414 }, "end": { "local": "1933-08-08T16:29:41+03:00", "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": "1933-08-07T17:55:42+03:00", "utc": "1933-08-07T14:55:42Z", "ms": -1148720658426.414 }, "end": { "local": "1933-08-08T16:29:41+03:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-07", "window": { "start": { "local": "1933-08-07T11:45:22+03:00", "utc": "1933-08-07T08:45:22Z", "ms": -1148742877895.7114 }, "end": { "local": "1933-08-07T12:33:22+03:00", "utc": "1933-08-07T09:33:22Z", "ms": -1148739997895.7114 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-08", "window": { "start": { "local": "1933-08-08T11:45:15+03:00", "utc": "1933-08-08T08:45:15Z", "ms": -1148656485372.9976 }, "end": { "local": "1933-08-08T12:33:15+03:00", "utc": "1933-08-08T09:33:15Z", "ms": -1148653605372.9976 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 17:56 on Mon 7 Aug to 16:30 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: 11:45–12:33 on the 7th, 11:45–12:33 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 14186 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Erbil, 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 Erbil, Kajjalī Tṛtīyā (Kajari Teej) 1933 falls on Tuesday 8 August. Tṛtīyā runs from 17:56 on Mon 7 Aug to 16:30 on Tue 8 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 747, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-08-08T16:29:41+03:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "end": { "local": "1933-08-09T15:45:41+03:00", "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": "1933-08-08T16:29:41+03:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "end": { "local": "1933-08-09T15:45:41+03:00", "utc": "1933-08-09T12:45:41Z", "ms": -1148555658950.5747 } }, "kaala": "sayahna", "days": [ { "local_date": "1933-08-08", "window": { "start": { "local": "1933-08-08T16:17:14+03:00", "utc": "1933-08-08T13:17:14Z", "ms": -1148640165794.5667 }, "end": { "local": "1933-08-08T19:02:34+03:00", "utc": "1933-08-08T16:02:34Z", "ms": -1148630246075.6128 } }, "covered_min": 153, "window_min": 165, "qualifies": true }, { "local_date": "1933-08-09", "window": { "start": { "local": "1933-08-09T16:16:32+03:00", "utc": "1933-08-09T13:16:32Z", "ms": -1148553807528.8384 }, "end": { "local": "1933-08-09T19:01:30+03:00", "utc": "1933-08-09T16:01:30Z", "ms": -1148543910269.3044 } }, "covered_min": 0, "window_min": 165, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:30 on Tue 8 Aug to 15:46 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: 16:17–19:03 on the 8th, 16:17–19:01 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 153 of 165 minutes on the 8th and 0 of 165 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 747 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Erbil, 1933: Tuesday 8 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": "1933-08-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-08", "confidence": "determinate" } ], "quote": "In Erbil, Bahulā Caturthī 1933 falls on Tuesday 8 August. Caturthī runs from 16:30 on Tue 8 Aug to 15:46 on Wed 9 Aug and covers 153 of 165 minutes of sāyāhna that late afternoon.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-08-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14655, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-08-08T16:29:41+03:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "end": { "local": "1933-08-09T15:45:41+03:00", "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": "1933-08-08T16:29:41+03:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "end": { "local": "1933-08-09T15:45:41+03:00", "utc": "1933-08-09T12:45:41Z", "ms": -1148555658950.5747 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-08-08", "window": { "start": { "local": "1933-08-08T20:33:56+03:00", "utc": "1933-08-08T17:33:56Z", "ms": -1148624763861.9658 }, "end": { "local": "1933-08-08T20:33:56+03:00", "utc": "1933-08-08T17:33:56Z", "ms": -1148624763861.9658 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-08-09", "window": { "start": { "local": "1933-08-09T20:59:09+03:00", "utc": "1933-08-09T17:59:09Z", "ms": -1148536851092.0542 }, "end": { "local": "1933-08-09T20:59:09+03:00", "utc": "1933-08-09T17:59:09Z", "ms": -1148536851092.0542 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:30 on Tue 8 Aug to 15:46 on Wed 9 Aug.", "fact": "1933-08-08T13:29:41Z → 1933-08-09T12:45:41Z" }, { "step": "kaala", "text": "Moonrise is at 20:34 on the 8th and 20:59 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 8th and is not on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14655 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 1933: Tuesday 8 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-08", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī 1933 falls on Tuesday 8 August. Caturthī runs from 16:30 on Tue 8 Aug to 15:46 on Wed 9 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11599, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-08-10T15:46:17+03:00", "utc": "1933-08-10T12:46:17Z", "ms": -1148469222838.5842 }, "end": { "local": "1933-08-11T16:30:48+03:00", "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": "1933-08-10T15:46:17+03:00", "utc": "1933-08-10T12:46:17Z", "ms": -1148469222838.5842 }, "end": { "local": "1933-08-11T16:30:48+03:00", "utc": "1933-08-11T13:30:48Z", "ms": -1148380152328.6199 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-10", "window": { "start": { "local": "1933-08-10T11:44:58+03:00", "utc": "1933-08-10T08:44:58Z", "ms": -1148483702022.7344 }, "end": { "local": "1933-08-10T12:32:58+03:00", "utc": "1933-08-10T09:32:58Z", "ms": -1148480822022.7344 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-11", "window": { "start": { "local": "1933-08-11T11:44:49+03:00", "utc": "1933-08-11T08:44:49Z", "ms": -1148397311178.6353 }, "end": { "local": "1933-08-11T12:32:49+03:00", "utc": "1933-08-11T09:32:49Z", "ms": -1148394431178.6353 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 15:46 on Thu 10 Aug to 16:31 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: 11:45–12:33 on the 10th, 11:45–12:33 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 11599 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Erbil, 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 Erbil, Hala Ṣaṣṭhī 1933 falls on Friday 11 August. Ṣaṣṭhī runs from 15:46 on Thu 10 Aug to 16:31 on Fri 11 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14074, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-08-12T17:54:49+03:00", "utc": "1933-08-12T14:54:49Z", "ms": -1148288711340.042 }, "end": { "local": "1933-08-13T19:50:19+03:00", "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": "1933-08-12T17:54:49+03:00", "utc": "1933-08-12T14:54:49Z", "ms": -1148288711340.042 }, "end": { "local": "1933-08-13T19:50:19+03:00", "utc": "1933-08-13T16:50:19Z", "ms": -1148195381222.0803 } }, "kaala": "nishita", "days": [ { "local_date": "1933-08-12", "window": { "start": { "local": "1933-08-12T23:45:03+03:00", "utc": "1933-08-12T20:45:03Z", "ms": -1148267696744.776 }, "end": { "local": "1933-08-13T00:33:03+03:00", "utc": "1933-08-12T21:33:03Z", "ms": -1148264816744.776 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-13", "window": { "start": { "local": "1933-08-13T23:44:53+03:00", "utc": "1933-08-13T20:44:53Z", "ms": -1148181306974.7095 }, "end": { "local": "1933-08-14T00:32:53+03:00", "utc": "1933-08-13T21:32:53Z", "ms": -1148178426974.7095 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:55 on Sat 12 Aug to 19:50 on Sun 13 Aug.", "fact": "1933-08-12T14:54:49Z → 1933-08-13T16:50:19Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 12th, 23:45–00:33 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 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14074 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Erbil, 1933: Saturday 12 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": "1933-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-12", "confidence": "determinate" } ], "quote": "In Erbil, Janmāṣṭamī 1933 falls on Saturday 12 August. Aṣṭamī runs from 17:55 on Sat 12 Aug to 19:50 on Sun 13 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14279, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-08-11T16:30:48+03:00", "utc": "1933-08-11T13:30:48Z", "ms": -1148380152328.6199 }, "end": { "local": "1933-08-12T17:54:49+03:00", "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": "1933-08-11T16:30:48+03:00", "utc": "1933-08-11T13:30:48Z", "ms": -1148380152328.6199 }, "end": { "local": "1933-08-12T17:54:49+03:00", "utc": "1933-08-12T14:54:49Z", "ms": -1148288711340.042 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-11", "window": { "start": { "local": "1933-08-11T11:44:49+03:00", "utc": "1933-08-11T08:44:49Z", "ms": -1148397311178.6353 }, "end": { "local": "1933-08-11T12:32:49+03:00", "utc": "1933-08-11T09:32:49Z", "ms": -1148394431178.6353 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-12", "window": { "start": { "local": "1933-08-12T11:44:39+03:00", "utc": "1933-08-12T08:44:39Z", "ms": -1148310920877.915 }, "end": { "local": "1933-08-12T12:32:39+03:00", "utc": "1933-08-12T09:32:39Z", "ms": -1148308040877.915 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 16:31 on Fri 11 Aug to 17:55 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: 11:45–12:33 on the 11th, 11:45–12:33 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 14279 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Erbil, 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 Erbil, Śītalā Saptamī 1933 falls on Saturday 12 August. Saptamī runs from 16:31 on Fri 11 Aug to 17:55 on Sat 12 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-08-16", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9103, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-08-16T00:30:51+03:00", "utc": "1933-08-15T21:30:51Z", "ms": -1148005749426.8162 }, "end": { "local": "1933-08-17T02:51:27+03:00", "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": "1933-08-16T00:30:51+03:00", "utc": "1933-08-15T21:30:51Z", "ms": -1148005749426.8162 }, "end": { "local": "1933-08-17T02:51:27+03:00", "utc": "1933-08-16T23:51:27Z", "ms": -1147910913264.0588 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-08-16", "window": { "start": { "local": "1933-08-16T05:22:21+03:00", "utc": "1933-08-16T02:22:21Z", "ms": -1147988258874.6814 }, "end": { "local": "1933-08-16T05:22:21+03:00", "utc": "1933-08-16T02:22:21Z", "ms": -1147988258874.6814 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-08-17", "window": { "start": { "local": "1933-08-17T05:23:09+03:00", "utc": "1933-08-17T02:23:09Z", "ms": -1147901810640.018 }, "end": { "local": "1933-08-17T05:23:09+03:00", "utc": "1933-08-17T02:23:09Z", "ms": -1147901810640.018 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:31 on Wed 16 Aug to 02:51 on Thu 17 Aug.", "fact": "1933-08-15T21:30:51Z → 1933-08-16T23:51:27Z" }, { "step": "kaala", "text": "Sunrise is at 05:22 on the 16th and 05:23 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 not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9103 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Erbil, 1933: Wednesday 16 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": "1933-08-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-16", "confidence": "determinate" } ], "quote": "In Erbil, Ajā Ekādaśī 1933 falls on Wednesday 16 August. Ekādaśī runs from 00:31 on Wed 16 Aug to 02:51 on Thu 17 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/1933/ekadashi?on=1933-08-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/pradosha-vrata?on=1933-08-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31280, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-08-18T04:57:50+03:00", "utc": "1933-08-18T01:57:50Z", "ms": -1147816930239.3103 }, "end": { "local": "1933-08-19T06:42:12+03:00", "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": "1933-08-18T04:57:50+03:00", "utc": "1933-08-18T01:57:50Z", "ms": -1147816930239.3103 }, "end": { "local": "1933-08-19T06:42:12+03:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-08-17", "window": { "start": { "local": "1933-08-17T18:52:16+03:00", "utc": "1933-08-17T15:52:16Z", "ms": -1147853263862.199 }, "end": { "local": "1933-08-17T20:16:30+03:00", "utc": "1933-08-17T17:16:30Z", "ms": -1147848210339.4402 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1933-08-18", "window": { "start": { "local": "1933-08-18T18:51:02+03:00", "utc": "1933-08-18T15:51:02Z", "ms": -1147766937649.272 }, "end": { "local": "1933-08-18T20:15:32+03:00", "utc": "1933-08-18T17:15:32Z", "ms": -1147761867867.98 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:58 on Fri 18 Aug to 06:42 on Sat 19 Aug.", "fact": "1933-08-18T01:57:50Z → 1933-08-19T03:42:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:16 on the 17th, 18:51–20:16 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 17th and 84 of 84 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31280 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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 Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Friday 18 August. Trayodaśī runs from 04:58 on Fri 18 Aug to 06:42 on Sat 19 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37600, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-08-19T06:42:12+03:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "end": { "local": "1933-08-20T07:59:38+03:00", "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": "1933-08-19T06:42:12+03:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "end": { "local": "1933-08-20T07:59:38+03:00", "utc": "1933-08-20T04:59:38Z", "ms": -1147633222268.3242 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-08-18", "window": { "start": { "local": "1933-08-18T18:51:02+03:00", "utc": "1933-08-18T15:51:02Z", "ms": -1147766937649.272 }, "end": { "local": "1933-08-18T20:15:32+03:00", "utc": "1933-08-18T17:15:32Z", "ms": -1147761867867.98 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1933-08-19", "window": { "start": { "local": "1933-08-19T18:49:48+03:00", "utc": "1933-08-19T15:49:48Z", "ms": -1147680612364.7231 }, "end": { "local": "1933-08-19T20:14:34+03:00", "utc": "1933-08-19T17:14:34Z", "ms": -1147675526208.6519 } }, "covered_min": 85, "window_min": 85, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:42 on Sat 19 Aug to 08:00 on Sun 20 Aug.", "fact": "1933-08-19T03:42:12Z → 1933-08-20T04:59:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:16 on the 18th, 18:50–20:15 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 18th and 85 of 85 on the 19th.", "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 37600 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Erbil, 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 Erbil, Aghora Caturdaśī 1933 falls on Saturday 19 August. Caturdaśī runs from 06:42 on Sat 19 Aug to 08:00 on Sun 20 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-08-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22218, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-08-19T06:42:12+03:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "end": { "local": "1933-08-20T07:59:38+03:00", "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": "1933-08-19T06:42:12+03:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "end": { "local": "1933-08-20T07:59:38+03:00", "utc": "1933-08-20T04:59:38Z", "ms": -1147633222268.3242 } }, "kaala": "nishita", "days": [ { "local_date": "1933-08-18", "window": { "start": { "local": "1933-08-18T23:43:54+03:00", "utc": "1933-08-18T20:43:54Z", "ms": -1147749365969.4268 }, "end": { "local": "1933-08-19T00:31:54+03:00", "utc": "1933-08-18T21:31:54Z", "ms": -1147746485969.4268 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-19", "window": { "start": { "local": "1933-08-19T23:43:41+03:00", "utc": "1933-08-19T20:43:41Z", "ms": -1147662979279.4556 }, "end": { "local": "1933-08-20T00:31:41+03:00", "utc": "1933-08-19T21:31:41Z", "ms": -1147660099279.4556 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:42 on Sat 19 Aug to 08:00 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: 23:44–00:32 on the 18th, 23:44–00:32 on the 19th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 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. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22218 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 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 Erbil, Śivarātri 1933 falls on Saturday 19 August. Caturdaśī runs from 06:42 on Sat 19 Aug to 08:00 on Sun 20 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9370, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-08-21T08:47:48+03:00", "utc": "1933-08-21T05:47:48Z", "ms": -1147543932269.2812 }, "end": { "local": "1933-08-22T09:06:24+03:00", "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": "1933-08-21T08:47:48+03:00", "utc": "1933-08-21T05:47:48Z", "ms": -1147543932269.2812 }, "end": { "local": "1933-08-22T09:06:24+03:00", "utc": "1933-08-22T06:06:24Z", "ms": -1147456415864.4207 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-21", "window": { "start": { "local": "1933-08-21T11:42:49+03:00", "utc": "1933-08-21T08:42:49Z", "ms": -1147533431319.4058 }, "end": { "local": "1933-08-21T12:30:49+03:00", "utc": "1933-08-21T09:30:49Z", "ms": -1147530551319.4058 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-22", "window": { "start": { "local": "1933-08-22T11:42:34+03:00", "utc": "1933-08-22T08:42:34Z", "ms": -1147447046012.5903 }, "end": { "local": "1933-08-22T12:30:34+03:00", "utc": "1933-08-22T09:30:34Z", "ms": -1147444166012.5903 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 08:48 on Mon 21 Aug to 09:06 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: 11:43–12:31 on the 21st, 11:43–12:31 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 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9370 s" }, { "step": "ruling", "text": "Rudra Vrata, Erbil, 1933: Monday 21 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": "1933-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-21", "confidence": "determinate" } ], "quote": "In Erbil, Rudra Vrata 1933 falls on Monday 21 August. Pratipadā runs from 08:48 on Mon 21 Aug to 09:06 on Tue 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9946, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-08-23T08:56:32+03:00", "utc": "1933-08-23T05:56:32Z", "ms": -1147370607539.697 }, "end": { "local": "1933-08-24T08:20:08+03:00", "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": "1933-08-23T08:56:32+03:00", "utc": "1933-08-23T05:56:32Z", "ms": -1147370607539.697 }, "end": { "local": "1933-08-24T08:20:08+03:00", "utc": "1933-08-24T05:20:08Z", "ms": -1147286392361.1294 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-23", "window": { "start": { "local": "1933-08-23T11:42:19+03:00", "utc": "1933-08-23T08:42:19Z", "ms": -1147360661158.4307 }, "end": { "local": "1933-08-23T12:30:19+03:00", "utc": "1933-08-23T09:30:19Z", "ms": -1147357781158.4307 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-24", "window": { "start": { "local": "1933-08-24T11:42:03+03:00", "utc": "1933-08-24T08:42:03Z", "ms": -1147274276747.2778 }, "end": { "local": "1933-08-24T12:30:03+03:00", "utc": "1933-08-24T09:30:03Z", "ms": -1147271396747.2778 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 08:57 on Wed 23 Aug to 08:20 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: 11:42–12:30 on the 23rd, 11:42–12:30 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9946 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Erbil, 1933: Wednesday 23 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": "1933-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-23", "confidence": "determinate" } ], "quote": "In Erbil, Haritālikā Vrata (Hartalika Teej) 1933 falls on Wednesday 23 August. Tṛtīyā runs from 08:57 on Wed 23 Aug to 08:20 on Thu 24 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12116, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-08-24T08:20:08+03:00", "utc": "1933-08-24T05:20:08Z", "ms": -1147286392361.1294 }, "end": { "local": "1933-08-25T07:19:29+03:00", "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": "1933-08-24T08:20:08+03:00", "utc": "1933-08-24T05:20:08Z", "ms": -1147286392361.1294 }, "end": { "local": "1933-08-25T07:19:29+03:00", "utc": "1933-08-25T04:19:29Z", "ms": -1147203630777.0862 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-24", "window": { "start": { "local": "1933-08-24T11:42:03+03:00", "utc": "1933-08-24T08:42:03Z", "ms": -1147274276747.2778 }, "end": { "local": "1933-08-24T12:30:03+03:00", "utc": "1933-08-24T09:30:03Z", "ms": -1147271396747.2778 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-25", "window": { "start": { "local": "1933-08-25T11:41:47+03:00", "utc": "1933-08-25T08:41:47Z", "ms": -1147187892768.7861 }, "end": { "local": "1933-08-25T12:29:47+03:00", "utc": "1933-08-25T09:29:47Z", "ms": -1147185012768.7861 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:20 on Thu 24 Aug to 07:19 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: 11:42–12:30 on the 24th, 11:42–12:30 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12116 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Erbil, 1933: Thursday 24 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": "1933-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-24", "confidence": "determinate" } ], "quote": "In Erbil, Gaṇeśa Caturthī 1933 falls on Thursday 24 August. Caturthī runs from 08:20 on Thu 24 Aug to 07:19 on Fri 25 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15738, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-08-25T07:19:29+03:00", "utc": "1933-08-25T04:19:29Z", "ms": -1147203630777.0862 }, "end": { "local": "1933-08-26T05:57:07+03:00", "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": "1933-08-25T07:19:29+03:00", "utc": "1933-08-25T04:19:29Z", "ms": -1147203630777.0862 }, "end": { "local": "1933-08-26T05:57:07+03:00", "utc": "1933-08-26T02:57:07Z", "ms": -1147122173265.3755 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-25", "window": { "start": { "local": "1933-08-25T11:41:47+03:00", "utc": "1933-08-25T08:41:47Z", "ms": -1147187892768.7861 }, "end": { "local": "1933-08-25T12:29:47+03:00", "utc": "1933-08-25T09:29:47Z", "ms": -1147185012768.7861 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-26", "window": { "start": { "local": "1933-08-26T11:41:31+03:00", "utc": "1933-08-26T08:41:31Z", "ms": -1147101509211.746 }, "end": { "local": "1933-08-26T12:29:31+03:00", "utc": "1933-08-26T09:29:31Z", "ms": -1147098629211.746 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 07:19 on Fri 25 Aug to 05:57 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: 11:42–12:30 on the 25th, 11:42–12:30 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 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: disputed → only-day · margin 15738 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Erbil, 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": "determinate" } ], "quote": "In Erbil, Ṛṣi Pañcamī 1933 falls on Friday 25 August. Pañcamī runs from 07:19 on Fri 25 Aug to 05:57 on Sat 26 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20664, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-08-26T05:57:07+03:00", "utc": "1933-08-26T02:57:07Z", "ms": -1147122173265.3755 }, "end": { "local": "1933-08-27T04:15:34+03:00", "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": "1933-08-26T05:57:07+03:00", "utc": "1933-08-26T02:57:07Z", "ms": -1147122173265.3755 }, "end": { "local": "1933-08-27T04:15:34+03:00", "utc": "1933-08-27T01:15:34Z", "ms": -1147041865738.427 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-26", "window": { "start": { "local": "1933-08-26T11:41:31+03:00", "utc": "1933-08-26T08:41:31Z", "ms": -1147101509211.746 }, "end": { "local": "1933-08-26T12:29:31+03:00", "utc": "1933-08-26T09:29:31Z", "ms": -1147098629211.746 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-27", "window": { "start": { "local": "1933-08-27T11:41:14+03:00", "utc": "1933-08-27T08:41:14Z", "ms": -1147015126063.9375 }, "end": { "local": "1933-08-27T12:29:14+03:00", "utc": "1933-08-27T09:29:14Z", "ms": -1147012246063.9375 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 05:57 on Sat 26 Aug to 04:16 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: 11:42–12:30 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": "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 20664 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Erbil, 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": "determinate" } ], "quote": "In Erbil, Sūrya Ṣaṣṭhī (Bhādrapada) 1933 falls on Saturday 26 August. Ṣaṣṭhī runs from 05:57 on Sat 26 Aug to 04:16 on Sun 27 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26740, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-08-27T04:15:34+03:00", "utc": "1933-08-27T01:15:34Z", "ms": -1147041865738.427 }, "end": { "local": "1933-08-28T02:17:32+03:00", "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": "1933-08-27T04:15:34+03:00", "utc": "1933-08-27T01:15:34Z", "ms": -1147041865738.427 }, "end": { "local": "1933-08-28T02:17:32+03:00", "utc": "1933-08-27T23:17:32Z", "ms": -1146962547734.3435 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-27", "window": { "start": { "local": "1933-08-27T11:41:14+03:00", "utc": "1933-08-27T08:41:14Z", "ms": -1147015126063.9375 }, "end": { "local": "1933-08-27T12:29:14+03:00", "utc": "1933-08-27T09:29:14Z", "ms": -1147012246063.9375 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-28", "window": { "start": { "local": "1933-08-28T11:40:57+03:00", "utc": "1933-08-28T08:40:57Z", "ms": -1146928743312.0103 }, "end": { "local": "1933-08-28T12:28:57+03:00", "utc": "1933-08-28T09:28:57Z", "ms": -1146925863312.0103 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 04:16 on Sun 27 Aug to 02:18 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: 11:41–12:29 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": "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 26740 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Erbil, 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 Erbil, Muktābharaṇa Vrata 1933 falls on Sunday 27 August. Saptamī runs from 04:16 on Sun 27 Aug to 02:18 on Mon 28 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33804, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-08-28T02:17:32+03:00", "utc": "1933-08-27T23:17:32Z", "ms": -1146962547734.3435 }, "end": { "local": "1933-08-29T00:05:54+03:00", "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": "1933-08-28T02:17:32+03:00", "utc": "1933-08-27T23:17:32Z", "ms": -1146962547734.3435 }, "end": { "local": "1933-08-29T00:05:54+03:00", "utc": "1933-08-28T21:05:54Z", "ms": -1146884045964.5273 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-28", "window": { "start": { "local": "1933-08-28T11:40:57+03:00", "utc": "1933-08-28T08:40:57Z", "ms": -1146928743312.0103 }, "end": { "local": "1933-08-28T12:28:57+03:00", "utc": "1933-08-28T09:28:57Z", "ms": -1146925863312.0103 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-29", "window": { "start": { "local": "1933-08-29T11:40:39+03:00", "utc": "1933-08-29T08:40:39Z", "ms": -1146842360941.3953 }, "end": { "local": "1933-08-29T12:28:39+03:00", "utc": "1933-08-29T09:28:39Z", "ms": -1146839480941.3953 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 02:18 on Mon 28 Aug to 00:06 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: 11:41–12:29 on the 28th, 11:41–12:29 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 33804 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Erbil, 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 Erbil, Rādhāṣṭamī 1933 falls on Monday 28 August. Aṣṭamī runs from 02:18 on Mon 28 Aug to 00:06 on Tue 29 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-08-31", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37141, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-08-30T19:15:16+03:00", "utc": "1933-08-30T16:15:16Z", "ms": -1146728683703.0059 }, "end": { "local": "1933-08-31T16:44:19+03:00", "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": "1933-08-30T19:15:16+03:00", "utc": "1933-08-30T16:15:16Z", "ms": -1146728683703.0059 }, "end": { "local": "1933-08-31T16:44:19+03:00", "utc": "1933-08-31T13:44:19Z", "ms": -1146651340533.9685 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-08-31", "window": { "start": { "local": "1933-08-31T05:34:17+03:00", "utc": "1933-08-31T02:34:17Z", "ms": -1146691542923.3936 }, "end": { "local": "1933-08-31T05:34:17+03:00", "utc": "1933-08-31T02:34:17Z", "ms": -1146691542923.3936 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-01", "window": { "start": { "local": "1933-09-01T05:35:04+03:00", "utc": "1933-09-01T02:35:04Z", "ms": -1146605095951.8457 }, "end": { "local": "1933-09-01T05:35:04+03:00", "utc": "1933-09-01T02:35:04Z", "ms": -1146605095951.8457 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:15 on Wed 30 Aug to 16:44 on Thu 31 Aug.", "fact": "1933-08-30T16:15:16Z → 1933-08-31T13:44:19Z" }, { "step": "kaala", "text": "Sunrise is at 05:34 on the 31st and 05:35 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 37141 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Erbil, 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 Erbil, Parivartanī Ekādaśī 1933 falls on Thursday 31 August. Ekādaśī runs from 19:15 on Wed 30 Aug to 16:44 on Thu 31 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6496, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-08-31T16:44:19+03:00", "utc": "1933-08-31T13:44:19Z", "ms": -1146651340533.9685 }, "end": { "local": "1933-09-01T14:16:00+03:00", "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": "1933-08-31T16:44:19+03:00", "utc": "1933-08-31T13:44:19Z", "ms": -1146651340533.9685 }, "end": { "local": "1933-09-01T14:16:00+03:00", "utc": "1933-09-01T11:16:00Z", "ms": -1146573840049.9812 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-31", "window": { "start": { "local": "1933-08-31T11:40:03+03:00", "utc": "1933-08-31T08:40:03Z", "ms": -1146669597279.4485 }, "end": { "local": "1933-08-31T12:28:03+03:00", "utc": "1933-08-31T09:28:03Z", "ms": -1146666717279.4485 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-01", "window": { "start": { "local": "1933-09-01T11:39:44+03:00", "utc": "1933-09-01T08:39:44Z", "ms": -1146583215952.6104 }, "end": { "local": "1933-09-01T12:27:44+03:00", "utc": "1933-09-01T09:27:44Z", "ms": -1146580335952.6104 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 16:44 on Thu 31 Aug to 14:16 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: 11:40–12:28 on the 31st, 11:40–12:28 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 6496 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Erbil, 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 Erbil, Vāmana Jayantī 1933 falls on Friday 1 September. Dvādaśī runs from 16:44 on Thu 31 Aug to 14:16 on Fri 1 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-09-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15384, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-09-01T14:16:00+03:00", "utc": "1933-09-01T11:16:00Z", "ms": -1146573840049.9812 }, "end": { "local": "1933-09-02T11:55:50+03:00", "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": "1933-09-01T14:16:00+03:00", "utc": "1933-09-01T11:16:00Z", "ms": -1146573840049.9812 }, "end": { "local": "1933-09-02T11:55:50+03:00", "utc": "1933-09-02T08:55:50Z", "ms": -1146495850223.9268 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-09-01", "window": { "start": { "local": "1933-09-01T18:32:24+03:00", "utc": "1933-09-01T15:32:24Z", "ms": -1146558455953.375 }, "end": { "local": "1933-09-01T20:00:52+03:00", "utc": "1933-09-01T17:00:52Z", "ms": -1146553148368.424 } }, "covered_min": 88, "window_min": 88, "qualifies": true }, { "local_date": "1933-09-02", "window": { "start": { "local": "1933-09-02T18:30:59+03:00", "utc": "1933-09-02T15:30:59Z", "ms": -1146472140806.175 }, "end": { "local": "1933-09-02T19:59:44+03:00", "utc": "1933-09-02T16:59:44Z", "ms": -1146466815666.2034 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:16 on Fri 1 Sep to 11:56 on Sat 2 Sep.", "fact": "1933-09-01T11:16:00Z → 1933-09-02T08:55:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:32–20:01 on the 1st, 18:31–20:00 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 88 of 88 minutes on the 1st and 0 of 89 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 15384 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Friday 1 September. Trayodaśī runs from 14:16 on Fri 1 Sep to 11:56 on Sat 2 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5917, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-09-02T11:55:50+03:00", "utc": "1933-09-02T08:55:50Z", "ms": -1146495850223.9268 }, "end": { "local": "1933-09-03T09:49:50+03:00", "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": "1933-09-02T11:55:50+03:00", "utc": "1933-09-02T08:55:50Z", "ms": -1146495850223.9268 }, "end": { "local": "1933-09-03T09:49:50+03:00", "utc": "1933-09-03T06:49:50Z", "ms": -1146417009982.1394 } }, "kaala": "udaya-3", "days": [ { "local_date": "1933-09-02", "window": { "start": { "local": "1933-09-02T05:35:51+03:00", "utc": "1933-09-02T02:35:51Z", "ms": -1146518649066.2427 }, "end": { "local": "1933-09-02T08:10:53+03:00", "utc": "1933-09-02T05:10:53Z", "ms": -1146509347414.2292 } }, "covered_min": 0, "window_min": 155, "qualifies": false }, { "local_date": "1933-09-03", "window": { "start": { "local": "1933-09-03T05:36:38+03:00", "utc": "1933-09-03T02:36:38Z", "ms": -1146432202256.3882 }, "end": { "local": "1933-09-03T08:11:13+03:00", "utc": "1933-09-03T05:11:13Z", "ms": -1146422927037.7324 } }, "covered_min": 155, "window_min": 155, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:56 on Sat 2 Sep to 09:50 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: 05:36–08:11 on the 2nd, 05:37–08:11 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 155 minutes on the 2nd and 155 of 155 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 5917 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Erbil, 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 Erbil, Ananta Caturdaśī 1933 falls on Sunday 3 September. Caturdaśī runs from 11:56 on Sat 2 Sep to 09:50 on Sun 3 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-09-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37469, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-09-07T05:49:23+03:00", "utc": "1933-09-07T02:49:23Z", "ms": -1146085837289.9124 }, "end": { "local": "1933-09-08T06:18:58+03:00", "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": "1933-09-07T05:49:23+03:00", "utc": "1933-09-07T02:49:23Z", "ms": -1146085837289.9124 }, "end": { "local": "1933-09-08T06:18:58+03:00", "utc": "1933-09-08T03:18:58Z", "ms": -1145997661660.3862 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-09-06", "window": { "start": { "local": "1933-09-06T19:24:53+03:00", "utc": "1933-09-06T16:24:53Z", "ms": -1146123306704.4587 }, "end": { "local": "1933-09-06T19:24:53+03:00", "utc": "1933-09-06T16:24:53Z", "ms": -1146123306704.4587 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-09-07", "window": { "start": { "local": "1933-09-07T19:51:47+03:00", "utc": "1933-09-07T16:51:47Z", "ms": -1146035293473.937 }, "end": { "local": "1933-09-07T19:51:47+03:00", "utc": "1933-09-07T16:51:47Z", "ms": -1146035293473.937 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:49 on Thu 7 Sep to 06:19 on Fri 8 Sep.", "fact": "1933-09-07T02:49:23Z → 1933-09-08T03:18:58Z" }, { "step": "kaala", "text": "Moonrise is at 19:25 on the 6th and 19:52 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 37469 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 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 Erbil, Saṅkaṣṭa Caturthī 1933 falls on Thursday 7 September. Caturthī runs from 05:49 on Thu 7 Sep to 06:19 on Fri 8 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39959, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-09-09T07:27:15+03:00", "utc": "1933-09-09T04:27:15Z", "ms": -1145907165106.7795 }, "end": { "local": "1933-09-10T09:09:59+03:00", "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": "1933-09-09T07:27:15+03:00", "utc": "1933-09-09T04:27:15Z", "ms": -1145907165106.7795 }, "end": { "local": "1933-09-10T09:09:59+03:00", "utc": "1933-09-10T06:09:59Z", "ms": -1145814600643.1404 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-09-08", "window": { "start": { "local": "1933-09-08T20:21:16+03:00", "utc": "1933-09-08T17:21:16Z", "ms": -1145947124356.74 }, "end": { "local": "1933-09-08T20:21:16+03:00", "utc": "1933-09-08T17:21:16Z", "ms": -1145947124356.74 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-09-09", "window": { "start": { "local": "1933-09-09T20:54:41+03:00", "utc": "1933-09-09T17:54:41Z", "ms": -1145858718811.507 }, "end": { "local": "1933-09-09T20:54:41+03:00", "utc": "1933-09-09T17:54:41Z", "ms": -1145858718811.507 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 07:27 on Sat 9 Sep to 09:10 on Sun 10 Sep.", "fact": "1933-09-09T04:27:15Z → 1933-09-10T06:09:59Z" }, { "step": "kaala", "text": "Moonrise is at 20:21 on the 8th and 20:55 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 8th and is on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 39959 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Erbil, 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 Erbil, Candra Ṣaṣṭhī 1933 falls on Saturday 9 September. Ṣaṣṭhī runs from 07:27 on Sat 9 Sep to 09:10 on Sun 10 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16417, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-09-11T11:19:03+03:00", "utc": "1933-09-11T08:19:03Z", "ms": -1145720457187.641 }, "end": { "local": "1933-09-12T13:42:51+03:00", "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": "1933-09-11T11:19:03+03:00", "utc": "1933-09-11T08:19:03Z", "ms": -1145720457187.641 }, "end": { "local": "1933-09-12T13:42:51+03:00", "utc": "1933-09-12T10:42:51Z", "ms": -1145625428981.9792 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-09-11", "window": { "start": { "local": "1933-09-11T18:17:56+03:00", "utc": "1933-09-11T15:17:56Z", "ms": -1145695323509.804 }, "end": { "local": "1933-09-11T19:49:22+03:00", "utc": "1933-09-11T16:49:22Z", "ms": -1145689838025.6646 } }, "covered_min": 91, "window_min": 91, "qualifies": true }, { "local_date": "1933-09-12", "window": { "start": { "local": "1933-09-12T18:16:28+03:00", "utc": "1933-09-12T15:16:28Z", "ms": -1145609012039.9792 }, "end": { "local": "1933-09-12T19:48:11+03:00", "utc": "1933-09-12T16:48:11Z", "ms": -1145603508524.5957 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:19 on Mon 11 Sep to 13:43 on Tue 12 Sep.", "fact": "1933-09-11T08:19:03Z → 1933-09-12T10:42:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:18–19:49 on the 11th, 18:16–19:48 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 91 of 91 minutes on the 11th and 0 of 92 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16417 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Erbil, 1933: Monday 11 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "jitashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-11", "confidence": "determinate" } ], "quote": "In Erbil, Jitāṣṭamī (Jitiya) 1933 falls on Monday 11 September. Aṣṭamī runs from 11:19 on Mon 11 Sep to 13:43 on Tue 12 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33963, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-09-11T11:19:03+03:00", "utc": "1933-09-11T08:19:03Z", "ms": -1145720457187.641 }, "end": { "local": "1933-09-12T13:42:51+03:00", "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": "1933-09-11T11:19:03+03:00", "utc": "1933-09-11T08:19:03Z", "ms": -1145720457187.641 }, "end": { "local": "1933-09-12T13:42:51+03:00", "utc": "1933-09-12T10:42:51Z", "ms": -1145625428981.9792 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-09-11", "window": { "start": { "local": "1933-09-11T22:18:00+03:00", "utc": "1933-09-11T19:18:00Z", "ms": -1145680920006.735 }, "end": { "local": "1933-09-11T22:18:00+03:00", "utc": "1933-09-11T19:18:00Z", "ms": -1145680920006.735 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-12", "window": { "start": { "local": "1933-09-12T23:08:54+03:00", "utc": "1933-09-12T20:08:54Z", "ms": -1145591465845.9534 }, "end": { "local": "1933-09-12T23:08:54+03:00", "utc": "1933-09-12T20:08:54Z", "ms": -1145591465845.9534 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:19 on Mon 11 Sep to 13:43 on Tue 12 Sep.", "fact": "1933-09-11T08:19:03Z → 1933-09-12T10:42:51Z" }, { "step": "kaala", "text": "Moonrise is at 22:18 on the 11th and 23:09 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 33963 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Erbil, 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 Erbil, Mahālakṣmī Vrata Samāpana 1933 falls on Monday 11 September. Aṣṭamī runs from 11:19 on Mon 11 Sep to 13:43 on Tue 12 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-09-15", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34731, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-09-14T18:20:04+03:00", "utc": "1933-09-14T15:20:04Z", "ms": -1145435995570.599 }, "end": { "local": "1933-09-15T20:07:54+03:00", "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": "1933-09-14T18:20:04+03:00", "utc": "1933-09-14T15:20:04Z", "ms": -1145435995570.599 }, "end": { "local": "1933-09-15T20:07:54+03:00", "utc": "1933-09-15T17:07:54Z", "ms": -1145343126264.1943 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-09-15", "window": { "start": { "local": "1933-09-15T05:45:58+03:00", "utc": "1933-09-15T02:45:58Z", "ms": -1145394842116.704 }, "end": { "local": "1933-09-15T05:45:58+03:00", "utc": "1933-09-15T02:45:58Z", "ms": -1145394842116.704 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-16", "window": { "start": { "local": "1933-09-16T05:46:45+03:00", "utc": "1933-09-16T02:46:45Z", "ms": -1145308395245.9248 }, "end": { "local": "1933-09-16T05:46:45+03:00", "utc": "1933-09-16T02:46:45Z", "ms": -1145308395245.9248 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:20 on Thu 14 Sep to 20:08 on Fri 15 Sep.", "fact": "1933-09-14T15:20:04Z → 1933-09-15T17:07:54Z" }, { "step": "kaala", "text": "Sunrise is at 05:46 on the 15th and 05:47 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 34731 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Erbil, 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 Erbil, Indirā Ekādaśī 1933 falls on Friday 15 September. Ekādaśī runs from 18:20 on Thu 14 Sep to 20:08 on Fri 15 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-09-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5953, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-09-16T21:22:41+03:00", "utc": "1933-09-16T18:22:41Z", "ms": -1145252238671.199 }, "end": { "local": "1933-09-17T21:59:50+03:00", "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": "1933-09-16T21:22:41+03:00", "utc": "1933-09-16T18:22:41Z", "ms": -1145252238671.199 }, "end": { "local": "1933-09-17T21:59:50+03:00", "utc": "1933-09-17T18:59:50Z", "ms": -1145163610075.2278 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-09-16", "window": { "start": { "local": "1933-09-16T18:10:32+03:00", "utc": "1933-09-16T15:10:32Z", "ms": -1145263767923.7742 }, "end": { "local": "1933-09-16T19:43:28+03:00", "utc": "1933-09-16T16:43:28Z", "ms": -1145258191974.2039 } }, "covered_min": 0, "window_min": 93, "qualifies": false }, { "local_date": "1933-09-17", "window": { "start": { "local": "1933-09-17T18:09:03+03:00", "utc": "1933-09-17T15:09:03Z", "ms": -1145177457194.7834 }, "end": { "local": "1933-09-17T19:42:17+03:00", "utc": "1933-09-17T16:42:17Z", "ms": -1145171863072.494 } }, "covered_min": 93, "window_min": 93, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:23 on Sat 16 Sep to 22:00 on Sun 17 Sep.", "fact": "1933-09-16T18:22:41Z → 1933-09-17T18:59:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:11–19:43 on the 16th, 18:09–19:42 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 93 of 93 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 5953 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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 Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Sunday 17 September. Trayodaśī runs from 21:23 on Sat 16 Sep to 22:00 on Sun 17 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-09-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5691, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-09-17T21:59:50+03:00", "utc": "1933-09-17T18:59:50Z", "ms": -1145163610075.2278 }, "end": { "local": "1933-09-18T21:58:28+03:00", "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": "1933-09-17T21:59:50+03:00", "utc": "1933-09-17T18:59:50Z", "ms": -1145163610075.2278 }, "end": { "local": "1933-09-18T21:58:28+03:00", "utc": "1933-09-18T18:58:28Z", "ms": -1145077292091.0837 } }, "kaala": "nishita", "days": [ { "local_date": "1933-09-17", "window": { "start": { "local": "1933-09-17T23:34:41+03:00", "utc": "1933-09-17T20:34:41Z", "ms": -1145157919236.1978 }, "end": { "local": "1933-09-18T00:22:41+03:00", "utc": "1933-09-17T21:22:41Z", "ms": -1145155039236.1978 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-09-18", "window": { "start": { "local": "1933-09-18T23:34:20+03:00", "utc": "1933-09-18T20:34:20Z", "ms": -1145071540348.022 }, "end": { "local": "1933-09-19T00:22:20+03:00", "utc": "1933-09-18T21:22:20Z", "ms": -1145068660348.022 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:00 on Sun 17 Sep to 21:58 on Mon 18 Sep.", "fact": "1933-09-17T18:59:50Z → 1933-09-18T18:58:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 17th, 23:34–00:22 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 5691 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 1933: Sunday 17 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": "1933-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-17", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri 1933 falls on Sunday 17 September. Caturdaśī runs from 22:00 on Sun 17 Sep to 21:58 on Mon 18 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/1933/shivaratri?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": "/erbil/festivals/1933/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20529, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1933-09-18T21:58:28+03:00", "utc": "1933-09-18T18:58:28Z", "ms": -1145077292091.0837 }, "end": { "local": "1933-09-19T21:20:49+03:00", "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": "1933-09-18T21:58:28+03:00", "utc": "1933-09-18T18:58:28Z", "ms": -1145077292091.0837 }, "end": { "local": "1933-09-19T21:20:49+03:00", "utc": "1933-09-19T18:20:49Z", "ms": -1144993150903.6267 } }, "kaala": "aparahna", "days": [ { "local_date": "1933-09-18", "window": { "start": { "local": "1933-09-18T13:11:52+03:00", "utc": "1933-09-18T10:11:52Z", "ms": -1145108888429.4502 }, "end": { "local": "1933-09-18T15:39:43+03:00", "utc": "1933-09-18T12:39:43Z", "ms": -1145100017480.0627 } }, "covered_min": 0, "window_min": 148, "qualifies": false }, { "local_date": "1933-09-19", "window": { "start": { "local": "1933-09-19T13:11:17+03:00", "utc": "1933-09-19T10:11:17Z", "ms": -1145022523208.9465 }, "end": { "local": "1933-09-19T15:38:40+03:00", "utc": "1933-09-19T12:38:40Z", "ms": -1145013679556.806 } }, "covered_min": 147, "window_min": 147, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 21:58 on Mon 18 Sep to 21:21 on Tue 19 Sep.", "fact": "1933-09-18T18:58:28Z → 1933-09-19T18:20:49Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:12–15:40 on the 18th, 13:11–15:39 on the 19th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 0 of 148 minutes on the 18th and 147 of 147 on the 19th.", "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 20529 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Erbil, 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 Erbil, Mahālaya Amāvāsyā 1933 falls on Tuesday 19 September. Amāvasyā runs from 21:58 on Mon 18 Sep to 21:21 on Tue 19 Sep and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28206, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-09-19T21:20:49+03:00", "utc": "1933-09-19T18:20:49Z", "ms": -1144993150903.6267 }, "end": { "local": "1933-09-20T20:11:20+03:00", "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": "1933-09-19T21:20:49+03:00", "utc": "1933-09-19T18:20:49Z", "ms": -1144993150903.6267 }, "end": { "local": "1933-09-20T20:11:20+03:00", "utc": "1933-09-20T17:11:20Z", "ms": -1144910919873.0938 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-19", "window": { "start": { "local": "1933-09-19T11:33:35+03:00", "utc": "1933-09-19T08:33:35Z", "ms": -1145028385035.0168 }, "end": { "local": "1933-09-19T12:21:35+03:00", "utc": "1933-09-19T09:21:35Z", "ms": -1145025505035.0168 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-20", "window": { "start": { "local": "1933-09-20T11:33:14+03:00", "utc": "1933-09-20T08:33:14Z", "ms": -1144942006124.2896 }, "end": { "local": "1933-09-20T12:21:14+03:00", "utc": "1933-09-20T09:21:14Z", "ms": -1144939126124.2896 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 21:21 on Tue 19 Sep to 20:11 on Wed 20 Sep.", "fact": "1933-09-19T18:20:49Z → 1933-09-20T17:11:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 19th, 11:33–12:21 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28206 s" }, { "step": "ruling", "text": "Navarātrārambha, Erbil, 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 Erbil, Navarātrārambha (Navratri) 1933 falls on Wednesday 20 September. Pratipadā runs from 21:21 on Tue 19 Sep to 20:11 on Wed 20 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-09-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7917, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-09-22T16:40:37+03:00", "utc": "1933-09-22T13:40:37Z", "ms": -1144750763135.1033 }, "end": { "local": "1933-09-23T14:32:08+03:00", "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": "1933-09-22T16:40:37+03:00", "utc": "1933-09-22T13:40:37Z", "ms": -1144750763135.1033 }, "end": { "local": "1933-09-23T14:32:08+03:00", "utc": "1933-09-23T11:32:08Z", "ms": -1144672071605.5232 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-22", "window": { "start": { "local": "1933-09-22T11:32:32+03:00", "utc": "1933-09-22T08:32:32Z", "ms": -1144769248112.206 }, "end": { "local": "1933-09-22T12:20:32+03:00", "utc": "1933-09-22T09:20:32Z", "ms": -1144766368112.206 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-23", "window": { "start": { "local": "1933-09-23T11:32:11+03:00", "utc": "1933-09-23T08:32:11Z", "ms": -1144682868977.838 }, "end": { "local": "1933-09-23T12:20:11+03:00", "utc": "1933-09-23T09:20:11Z", "ms": -1144679988977.838 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:41 on Fri 22 Sep to 14:32 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: 11:33–12:21 on the 22nd, 11:32–12:20 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 7917 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 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 Erbil, Vināyaka Caturthī 1933 falls on Saturday 23 September. Caturthī runs from 16:41 on Fri 22 Sep to 14:32 on Sat 23 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3579, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-09-25T09:58:18+03:00", "utc": "1933-09-25T06:58:18Z", "ms": -1144515702192.5461 }, "end": { "local": "1933-09-26T07:42:22+03:00", "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": "1933-09-25T09:58:18+03:00", "utc": "1933-09-25T06:58:18Z", "ms": -1144515702192.5461 }, "end": { "local": "1933-09-26T07:42:22+03:00", "utc": "1933-09-26T04:42:22Z", "ms": -1144437458250.0767 } }, "kaala": "udaya-1", "days": [ { "local_date": "1933-09-25", "window": { "start": { "local": "1933-09-25T05:53:51+03:00", "utc": "1933-09-25T02:53:51Z", "ms": -1144530369259.475 }, "end": { "local": "1933-09-25T06:42:04+03:00", "utc": "1933-09-25T03:42:04Z", "ms": -1144527476073.8274 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-26", "window": { "start": { "local": "1933-09-26T05:54:39+03:00", "utc": "1933-09-26T02:54:39Z", "ms": -1144443921335.6274 }, "end": { "local": "1933-09-26T06:42:43+03:00", "utc": "1933-09-26T03:42:43Z", "ms": -1144441037271.489 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 09:58 on Mon 25 Sep to 07:42 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: 05:54–06:42 on the 25th, 05:55–06:43 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 3579 s" }, { "step": "ruling", "text": "Durgā Saptamī, Erbil, 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 Erbil, Durgā Saptamī 1933 falls on Tuesday 26 September. Saptamī runs from 09:58 on Mon 25 Sep to 07:42 on Tue 26 Sep and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13727, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-09-26T07:42:22+03:00", "utc": "1933-09-26T04:42:22Z", "ms": -1144437458250.0767 }, "end": { "local": "1933-09-27T05:31:51+03:00", "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": "1933-09-26T07:42:22+03:00", "utc": "1933-09-26T04:42:22Z", "ms": -1144437458250.0767 }, "end": { "local": "1933-09-27T05:31:51+03:00", "utc": "1933-09-27T02:31:51Z", "ms": -1144358888701.7578 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-26", "window": { "start": { "local": "1933-09-26T11:31:09+03:00", "utc": "1933-09-26T08:31:09Z", "ms": -1144423730854.5898 }, "end": { "local": "1933-09-26T12:19:09+03:00", "utc": "1933-09-26T09:19:09Z", "ms": -1144420850854.5898 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-09-27", "window": { "start": { "local": "1933-09-27T11:30:49+03:00", "utc": "1933-09-27T08:30:49Z", "ms": -1144337351178.3286 }, "end": { "local": "1933-09-27T12:18:49+03:00", "utc": "1933-09-27T09:18:49Z", "ms": -1144334471178.3286 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 07:42 on Tue 26 Sep to 05:32 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: 11:31–12:19 on the 26th, 11:31–12:19 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 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13727 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Erbil, 1933: Tuesday 26 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": "1933-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-26", "confidence": "determinate" } ], "quote": "In Erbil, Mahāṣṭamī (Durga Ashtami) 1933 falls on Tuesday 26 September. Aṣṭamī runs from 07:42 on Tue 26 Sep to 05:32 on Wed 27 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21538, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1933-09-27T05:31:51+03:00", "utc": "1933-09-27T02:31:51Z", "ms": -1144358888701.7578 }, "end": { "local": "1933-09-28T03:29:21+03:00", "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": "1933-09-27T05:31:51+03:00", "utc": "1933-09-27T02:31:51Z", "ms": -1144358888701.7578 }, "end": { "local": "1933-09-28T03:29:21+03:00", "utc": "1933-09-28T00:29:21Z", "ms": -1144279838579.5886 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-27", "window": { "start": { "local": "1933-09-27T11:30:49+03:00", "utc": "1933-09-27T08:30:49Z", "ms": -1144337351178.3286 }, "end": { "local": "1933-09-27T12:18:49+03:00", "utc": "1933-09-27T09:18:49Z", "ms": -1144334471178.3286 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-09-28", "window": { "start": { "local": "1933-09-28T11:30:29+03:00", "utc": "1933-09-28T08:30:29Z", "ms": -1144250971317.8735 }, "end": { "local": "1933-09-28T12:18:29+03:00", "utc": "1933-09-28T09:18:29Z", "ms": -1144248091317.8735 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:32 on Wed 27 Sep to 03:29 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: 11:31–12:19 on the 27th, 11:30–12:18 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 21538 s" }, { "step": "ruling", "text": "Mahānavamī, Erbil, 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 Erbil, Mahānavamī 1933 falls on Wednesday 27 September. Navamī runs from 05:32 on Wed 27 Sep to 03:29 on Thu 28 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12971, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1933-09-28T03:29:21+03:00", "utc": "1933-09-28T00:29:21Z", "ms": -1144279838579.5886 }, "end": { "local": "1933-09-29T01:36:58+03:00", "utc": "1933-09-28T22:36:58Z", "ms": -1144200182136.3665 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-28T03:29:21+03:00", "utc": "1933-09-28T00:29:21Z", "ms": -1144279838579.5886 }, "end": { "local": "1933-09-29T01:36:58+03:00", "utc": "1933-09-28T22:36:58Z", "ms": -1144200182136.3665 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-28", "window": { "start": { "local": "1933-09-28T11:30:29+03:00", "utc": "1933-09-28T08:30:29Z", "ms": -1144250971317.8735 }, "end": { "local": "1933-09-28T12:18:29+03:00", "utc": "1933-09-28T09:18:29Z", "ms": -1144248091317.8735 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-09-29", "window": { "start": { "local": "1933-09-29T11:30:09+03:00", "utc": "1933-09-29T08:30:09Z", "ms": -1144164591251.7744 }, "end": { "local": "1933-09-29T12:18:09+03:00", "utc": "1933-09-29T09:18:09Z", "ms": -1144161711251.7744 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 03:29 on Thu 28 Sep to 01:37 on Fri 29 Sep.", "fact": "1933-09-28T00:29:21Z → 1933-09-28T22:36:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 28th, 11:30–12:18 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Daśamī touches Śravaṇa in the day time on neither day, so the rest of the rule applies. Daśamī must be present during madhyāhna. It covers 48 of 48 minutes on the 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: unstated → only-day · margin 12971 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Erbil, 1933: Thursday 28 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": "1933-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-28", "confidence": "determinate" } ], "quote": "In Erbil, Vijayā Daśamī (Dussehra) 1933 falls on Thursday 28 September. Daśamī touches Śravaṇa in the day time on neither day, so madhyāhna decides. Daśamī runs from 03:29 on Thu 28 Sep to 01:37 on Fri 29 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-09-29", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15606, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-09-29T01:36:58+03:00", "utc": "1933-09-28T22:36:58Z", "ms": -1144200182136.3665 }, "end": { "local": "1933-09-29T23:56:38+03:00", "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": "1933-09-29T01:36:58+03:00", "utc": "1933-09-28T22:36:58Z", "ms": -1144200182136.3665 }, "end": { "local": "1933-09-29T23:56:38+03:00", "utc": "1933-09-29T20:56:38Z", "ms": -1144119801514.3555 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-09-29", "window": { "start": { "local": "1933-09-29T05:57:03+03:00", "utc": "1933-09-29T02:57:03Z", "ms": -1144184576626.3403 }, "end": { "local": "1933-09-29T05:57:03+03:00", "utc": "1933-09-29T02:57:03Z", "ms": -1144184576626.3403 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-30", "window": { "start": { "local": "1933-09-30T05:57:52+03:00", "utc": "1933-09-30T02:57:52Z", "ms": -1144098128035.3281 }, "end": { "local": "1933-09-30T05:57:52+03:00", "utc": "1933-09-30T02:57:52Z", "ms": -1144098128035.3281 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:37 on Fri 29 Sep to 23:57 on Fri 29 Sep.", "fact": "1933-09-28T22:36:58Z → 1933-09-29T20:56:38Z" }, { "step": "kaala", "text": "Sunrise is at 05:57 on the 29th and 05:58 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15606 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Erbil, 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 Erbil, Pāśāṅkuśā Ekādaśī 1933 falls on Friday 29 September. Ekādaśī runs from 01:37 on Fri 29 Sep to 23:57 on Fri 29 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-10-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6939, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-09-30T22:30:35+03:00", "utc": "1933-09-30T19:30:35Z", "ms": -1144038565429.0256 }, "end": { "local": "1933-10-01T21:21:27+03:00", "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": "1933-09-30T22:30:35+03:00", "utc": "1933-09-30T19:30:35Z", "ms": -1144038565429.0256 }, "end": { "local": "1933-10-01T21:21:27+03:00", "utc": "1933-10-01T18:21:27Z", "ms": -1143956313126.658 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-09-30", "window": { "start": { "local": "1933-09-30T17:49:46+03:00", "utc": "1933-09-30T14:49:46Z", "ms": -1144055413880.019 }, "end": { "local": "1933-09-30T19:26:57+03:00", "utc": "1933-09-30T16:26:57Z", "ms": -1144049582595.0469 } }, "covered_min": 0, "window_min": 97, "qualifies": false }, { "local_date": "1933-10-01", "window": { "start": { "local": "1933-10-01T17:48:18+03:00", "utc": "1933-10-01T14:48:18Z", "ms": -1143969101582.184 }, "end": { "local": "1933-10-01T19:25:48+03:00", "utc": "1933-10-01T16:25:48Z", "ms": -1143963252068.8938 } }, "covered_min": 97, "window_min": 97, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:31 on Sat 30 Sep to 21:21 on Sun 1 Oct.", "fact": "1933-09-30T19:30:35Z → 1933-10-01T18:21:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:50–19:27 on the 30th, 17:48–19:26 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 6939 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Sunday 1 October. Trayodaśī runs from 22:31 on Sat 30 Sep to 21:21 on Sun 1 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10678, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-10-06T21:50:27+03:00", "utc": "1933-10-06T18:50:27Z", "ms": -1143522573027.6892 }, "end": { "local": "1933-10-07T23:28:42+03:00", "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": "1933-10-06T21:50:27+03:00", "utc": "1933-10-06T18:50:27Z", "ms": -1143522573027.6892 }, "end": { "local": "1933-10-07T23:28:42+03:00", "utc": "1933-10-07T20:28:42Z", "ms": -1143430278338.731 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-10-06", "window": { "start": { "local": "1933-10-06T18:52:29+03:00", "utc": "1933-10-06T15:52:29Z", "ms": -1143533251288.7305 }, "end": { "local": "1933-10-06T18:52:29+03:00", "utc": "1933-10-06T15:52:29Z", "ms": -1143533251288.7305 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-07", "window": { "start": { "local": "1933-10-07T19:29:12+03:00", "utc": "1933-10-07T16:29:12Z", "ms": -1143444648432.9758 }, "end": { "local": "1933-10-07T19:29:12+03:00", "utc": "1933-10-07T16:29:12Z", "ms": -1143444648432.9758 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:50 on Fri 6 Oct to 23:29 on Sat 7 Oct.", "fact": "1933-10-06T18:50:27Z → 1933-10-07T20:28:42Z" }, { "step": "kaala", "text": "Moonrise is at 18:52 on the 6th and 19:29 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 10678 s" }, { "step": "ruling", "text": "Karaka Caturthī, Erbil, 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 Erbil, Karaka Caturthī (Karwa Chauth) 1933 falls on Saturday 7 October. Caturthī runs from 21:50 on Fri 6 Oct to 23:29 on Sat 7 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-10-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10678, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-10-06T21:50:27+03:00", "utc": "1933-10-06T18:50:27Z", "ms": -1143522573027.6892 }, "end": { "local": "1933-10-07T23:28:42+03:00", "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": "1933-10-06T21:50:27+03:00", "utc": "1933-10-06T18:50:27Z", "ms": -1143522573027.6892 }, "end": { "local": "1933-10-07T23:28:42+03:00", "utc": "1933-10-07T20:28:42Z", "ms": -1143430278338.731 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-10-06", "window": { "start": { "local": "1933-10-06T18:52:29+03:00", "utc": "1933-10-06T15:52:29Z", "ms": -1143533251288.7305 }, "end": { "local": "1933-10-06T18:52:29+03:00", "utc": "1933-10-06T15:52:29Z", "ms": -1143533251288.7305 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-07", "window": { "start": { "local": "1933-10-07T19:29:12+03:00", "utc": "1933-10-07T16:29:12Z", "ms": -1143444648432.9758 }, "end": { "local": "1933-10-07T19:29:12+03:00", "utc": "1933-10-07T16:29:12Z", "ms": -1143444648432.9758 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:50 on Fri 6 Oct to 23:29 on Sat 7 Oct.", "fact": "1933-10-06T18:50:27Z → 1933-10-07T20:28:42Z" }, { "step": "kaala", "text": "Moonrise is at 18:52 on the 6th and 19:29 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 10678 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 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 Erbil, Saṅkaṣṭa Caturthī 1933 falls on Saturday 7 October. Caturthī runs from 21:50 on Fri 6 Oct to 23:29 on Sat 7 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31027, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-10-11T06:31:18+03:00", "utc": "1933-10-11T03:31:18Z", "ms": -1143145722380.4578 }, "end": { "local": "1933-10-12T08:55:53+03:00", "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": "1933-10-11T06:31:18+03:00", "utc": "1933-10-11T03:31:18Z", "ms": -1143145722380.4578 }, "end": { "local": "1933-10-12T08:55:53+03:00", "utc": "1933-10-12T05:55:53Z", "ms": -1143050647042.5093 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-10-10", "window": { "start": { "local": "1933-10-10T21:54:11+03:00", "utc": "1933-10-10T18:54:11Z", "ms": -1143176748912.01 }, "end": { "local": "1933-10-10T21:54:11+03:00", "utc": "1933-10-10T18:54:11Z", "ms": -1143176748912.01 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-11", "window": { "start": { "local": "1933-10-11T22:52:17+03:00", "utc": "1933-10-11T19:52:17Z", "ms": -1143086863244.9248 }, "end": { "local": "1933-10-11T22:52:17+03:00", "utc": "1933-10-11T19:52:17Z", "ms": -1143086863244.9248 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 06:31 on Wed 11 Oct to 08:56 on Thu 12 Oct.", "fact": "1933-10-11T03:31:18Z → 1933-10-12T05:55:53Z" }, { "step": "kaala", "text": "Moonrise is at 21:54 on the 10th and 22:52 on the 11th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31027 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Erbil, 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 Erbil, Ahoyī Aṣṭamī 1933 falls on Wednesday 11 October. Aṣṭamī runs from 06:31 on Wed 11 Oct to 08:56 on Thu 12 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-10-15", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22604, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-10-14T12:26:24+03:00", "utc": "1933-10-14T09:26:24Z", "ms": -1142865215834.5786 }, "end": { "local": "1933-10-15T13:11:12+03:00", "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": "1933-10-14T12:26:24+03:00", "utc": "1933-10-14T09:26:24Z", "ms": -1142865215834.5786 }, "end": { "local": "1933-10-15T13:11:12+03:00", "utc": "1933-10-15T10:11:12Z", "ms": -1142776128485.4255 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-10-14", "window": { "start": { "local": "1933-10-14T06:09:40+03:00", "utc": "1933-10-14T03:09:40Z", "ms": -1142887819847.2449 }, "end": { "local": "1933-10-14T06:09:40+03:00", "utc": "1933-10-14T03:09:40Z", "ms": -1142887819847.2449 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-15", "window": { "start": { "local": "1933-10-15T06:10:33+03:00", "utc": "1933-10-15T03:10:33Z", "ms": -1142801366801.9348 }, "end": { "local": "1933-10-15T06:10:33+03:00", "utc": "1933-10-15T03:10:33Z", "ms": -1142801366801.9348 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:26 on Sat 14 Oct to 13:11 on Sun 15 Oct.", "fact": "1933-10-14T09:26:24Z → 1933-10-15T10:11:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:10 on the 14th and 06:11 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 22604 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Erbil, 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 Erbil, Ramā Ekādaśī 1933 falls on Sunday 15 October. Ekādaśī runs from 12:26 on Sat 14 Oct to 13:11 on Sun 15 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15448, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-10-15T13:11:12+03:00", "utc": "1933-10-15T10:11:12Z", "ms": -1142776128485.4255 }, "end": { "local": "1933-10-16T13:08:56+03:00", "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": "1933-10-15T13:11:12+03:00", "utc": "1933-10-15T10:11:12Z", "ms": -1142776128485.4255 }, "end": { "local": "1933-10-16T13:08:56+03:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-15", "window": { "start": { "local": "1933-10-15T17:28:40+03:00", "utc": "1933-10-15T14:28:40Z", "ms": -1142760680077.6587 }, "end": { "local": "1933-10-15T19:10:22+03:00", "utc": "1933-10-15T16:10:22Z", "ms": -1142754577852.9312 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1933-10-16", "window": { "start": { "local": "1933-10-16T17:27:21+03:00", "utc": "1933-10-16T14:27:21Z", "ms": -1142674359457.2686 }, "end": { "local": "1933-10-16T19:09:21+03:00", "utc": "1933-10-16T16:09:21Z", "ms": -1142668239478.5505 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 13:11 on Sun 15 Oct to 13:09 on Mon 16 Oct.", "fact": "1933-10-15T10:11:12Z → 1933-10-16T10:08:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:29–19:10 on the 15th, 17:27–19:09 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 102 of 102 minutes on the 15th and 0 of 102 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15448 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Erbil, 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 Erbil, Govatsa Dvādaśī (Vasu Baras) 1933 falls on Sunday 15 October. Dvādaśī runs from 13:11 on Sun 15 Oct to 13:09 on Mon 16 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15504, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-10-16T13:08:56+03:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "end": { "local": "1933-10-17T12:20:21+03:00", "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": "1933-10-16T13:08:56+03:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "end": { "local": "1933-10-17T12:20:21+03:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-16", "window": { "start": { "local": "1933-10-16T17:27:21+03:00", "utc": "1933-10-16T14:27:21Z", "ms": -1142674359457.2686 }, "end": { "local": "1933-10-16T19:09:21+03:00", "utc": "1933-10-16T16:09:21Z", "ms": -1142668239478.5505 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T17:26:02+03:00", "utc": "1933-10-17T14:26:02Z", "ms": -1142588038029.846 }, "end": { "local": "1933-10-17T19:08:20+03:00", "utc": "1933-10-17T16:08:20Z", "ms": -1142581900356.055 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:09 on Mon 16 Oct to 12:20 on Tue 17 Oct.", "fact": "1933-10-16T10:08:56Z → 1933-10-17T09:20:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:27–19:09 on the 16th, 17:26–19:08 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 16th and 0 of 102 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 15504 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Erbil, 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 Erbil, Yama Dīpadāna 1933 falls on Monday 16 October. Trayodaśī runs from 13:09 on Mon 16 Oct to 12:20 on Tue 17 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-10-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15504, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-10-16T13:08:56+03:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "end": { "local": "1933-10-17T12:20:21+03:00", "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": "1933-10-16T13:08:56+03:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "end": { "local": "1933-10-17T12:20:21+03:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-16", "window": { "start": { "local": "1933-10-16T17:27:21+03:00", "utc": "1933-10-16T14:27:21Z", "ms": -1142674359457.2686 }, "end": { "local": "1933-10-16T19:09:21+03:00", "utc": "1933-10-16T16:09:21Z", "ms": -1142668239478.5505 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T17:26:02+03:00", "utc": "1933-10-17T14:26:02Z", "ms": -1142588038029.846 }, "end": { "local": "1933-10-17T19:08:20+03:00", "utc": "1933-10-17T16:08:20Z", "ms": -1142581900356.055 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:09 on Mon 16 Oct to 12:20 on Tue 17 Oct.", "fact": "1933-10-16T10:08:56Z → 1933-10-17T09:20:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:27–19:09 on the 16th, 17:26–19:08 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 16th and 0 of 102 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 15504 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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 Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Monday 16 October. Trayodaśī runs from 13:09 on Mon 16 Oct to 12:20 on Tue 17 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-10-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38174, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-10-17T12:20:21+03:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "end": { "local": "1933-10-18T10:49:52+03:00", "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": "1933-10-17T12:20:21+03:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "end": { "local": "1933-10-18T10:49:52+03:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 } }, "kaala": "nishita", "days": [ { "local_date": "1933-10-16", "window": { "start": { "local": "1933-10-16T23:25:50+03:00", "utc": "1933-10-16T20:25:50Z", "ms": -1142652849537.0757 }, "end": { "local": "1933-10-17T00:13:50+03:00", "utc": "1933-10-16T21:13:50Z", "ms": -1142649969537.0757 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T23:25:38+03:00", "utc": "1933-10-17T20:25:38Z", "ms": -1142566461753.1294 }, "end": { "local": "1933-10-18T00:13:38+03:00", "utc": "1933-10-17T21:13:38Z", "ms": -1142563581753.1294 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:20 on Tue 17 Oct to 10:50 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: 23:26–00:14 on the 16th, 23:26–00:14 on the 17th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38174 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 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 Erbil, Śivarātri 1933 falls on Tuesday 17 October. Caturdaśī runs from 12:20 on Tue 17 Oct to 10:50 on Wed 18 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16598, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-10-17T12:20:21+03:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "end": { "local": "1933-10-18T10:49:52+03:00", "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": "1933-10-17T12:20:21+03:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "end": { "local": "1933-10-18T10:49:52+03:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 } }, "kaala": "arunodaya", "days": [ { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T04:30:20+03:00", "utc": "1933-10-17T01:30:20Z", "ms": -1142634579595.6008 }, "end": { "local": "1933-10-17T06:12:20+03:00", "utc": "1933-10-17T03:12:20Z", "ms": -1142628459616.8828 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "1933-10-18", "window": { "start": { "local": "1933-10-18T04:30:57+03:00", "utc": "1933-10-18T01:30:57Z", "ms": -1142548143150.2036 }, "end": { "local": "1933-10-18T06:13:15+03:00", "utc": "1933-10-18T03:13:15Z", "ms": -1142542005476.4126 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:20 on Tue 17 Oct to 10:50 on Wed 18 Oct.", "fact": "1933-10-17T09:20:21Z → 1933-10-18T07:49:52Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:30–06:12 on the 17th, 04:31–06:13 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 102 minutes on the 17th and 102 of 102 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 16598 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Erbil, 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 Erbil, Naraka Caturdaśī (Choti Diwali) 1933 falls on Wednesday 18 October. Caturdaśī runs from 12:20 on Tue 17 Oct to 10:50 on Wed 18 Oct and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23692, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1933-10-18T10:49:52+03:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "end": { "local": "1933-10-19T08:44:37+03:00", "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": "1933-10-18T10:49:52+03:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "end": { "local": "1933-10-19T08:44:37+03:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-18", "window": { "start": { "local": "1933-10-18T17:24:44+03:00", "utc": "1933-10-18T14:24:44Z", "ms": -1142501715765.7383 }, "end": { "local": "1933-10-18T19:07:20+03:00", "utc": "1933-10-18T16:07:20Z", "ms": -1142495560460.02 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T17:23:27+03:00", "utc": "1933-10-19T14:23:27Z", "ms": -1142415392635.9863 }, "end": { "local": "1933-10-19T19:06:20+03:00", "utc": "1933-10-19T16:06:20Z", "ms": -1142409219765.8333 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 10:50 on Wed 18 Oct to 08:45 on Thu 19 Oct.", "fact": "1933-10-18T07:49:52Z → 1933-10-19T05:44:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:25–19:07 on the 18th, 17:23–19:06 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 103 of 103 minutes on the 18th and 0 of 103 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 23692 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Erbil, 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 Erbil, Lakṣmī Pūjā (Diwali) 1933 falls on Wednesday 18 October. Amāvasyā runs from 10:50 on Wed 18 Oct to 08:45 on Thu 19 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30671, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1933-10-18T10:49:52+03:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "end": { "local": "1933-10-19T08:44:37+03:00", "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": "1933-10-18T10:49:52+03:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "end": { "local": "1933-10-19T08:44:37+03:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 } }, "kaala": "nishita", "days": [ { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T23:25:38+03:00", "utc": "1933-10-17T20:25:38Z", "ms": -1142566461753.1294 }, "end": { "local": "1933-10-18T00:13:38+03:00", "utc": "1933-10-17T21:13:38Z", "ms": -1142563581753.1294 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-18", "window": { "start": { "local": "1933-10-18T23:25:27+03:00", "utc": "1933-10-18T20:25:27Z", "ms": -1142480073369.2944 }, "end": { "local": "1933-10-19T00:13:27+03:00", "utc": "1933-10-18T21:13:27Z", "ms": -1142477193369.2944 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 10:50 on Wed 18 Oct to 08:45 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: 23:26–00:14 on the 17th, 23:25–00:13 on the 18th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30671 s" }, { "step": "ruling", "text": "Kālī Pūjā, Erbil, 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 Erbil, Kālī Pūjā 1933 falls on Wednesday 18 October. Amāvasyā runs from 10:50 on Wed 18 Oct to 08:45 on Thu 19 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9611, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-10-19T08:44:37+03:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T06:13:20+03:00", "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": "1933-10-19T08:44:37+03:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T06:13:20+03:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T11:24:48+03:00", "utc": "1933-10-19T08:24:48Z", "ms": -1142436911804.4185 }, "end": { "local": "1933-10-19T12:12:48+03:00", "utc": "1933-10-19T09:12:48Z", "ms": -1142434031804.4185 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-10-20", "window": { "start": { "local": "1933-10-20T11:24:38+03:00", "utc": "1933-10-20T08:24:38Z", "ms": -1142350522360.9883 }, "end": { "local": "1933-10-20T12:12:38+03:00", "utc": "1933-10-20T09:12:38Z", "ms": -1142347642360.9883 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 08:45 on Thu 19 Oct to 06:13 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: 11:25–12:13 on the 19th, 11:25–12:13 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9611 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Erbil, 1933: Thursday 19 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": "1933-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-19", "confidence": "determinate" } ], "quote": "In Erbil, Govardhana Pūjā 1933 falls on Thursday 19 October. Pratipadā runs from 08:45 on Thu 19 Oct to 06:13 on Fri 20 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31130, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-10-19T08:44:37+03:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T06:13:20+03:00", "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": "1933-10-19T08:44:37+03:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T06:13:20+03:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T17:23:27+03:00", "utc": "1933-10-19T14:23:27Z", "ms": -1142415392635.9863 }, "end": { "local": "1933-10-19T19:06:20+03:00", "utc": "1933-10-19T16:06:20Z", "ms": -1142409219765.8333 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "1933-10-20", "window": { "start": { "local": "1933-10-20T17:22:11+03:00", "utc": "1933-10-20T14:22:11Z", "ms": -1142329068612.139 }, "end": { "local": "1933-10-20T19:05:22+03:00", "utc": "1933-10-20T16:05:22Z", "ms": -1142322878249.5127 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 08:45 on Thu 19 Oct to 06:13 on Fri 20 Oct.", "fact": "1933-10-19T05:44:37Z → 1933-10-20T03:13:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:23–19:06 on the 19th, 17:22–19:05 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 103 of 103 minutes on the 19th and 0 of 103 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 31130 s" }, { "step": "ruling", "text": "Bali Pūjā, Erbil, 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 Erbil, Bali Pūjā 1933 falls on Thursday 19 October. Pratipadā runs from 08:45 on Thu 19 Oct to 06:13 on Fri 20 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-19", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 104, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-10-19T08:44:37+03:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T06:13:20+03:00", "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": "1933-10-19T08:44:37+03:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T06:13:20+03:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 } }, "kaala": "purvahna", "days": [ { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T06:14:09+03:00", "utc": "1933-10-19T03:14:09Z", "ms": -1142455550972.8506 }, "end": { "local": "1933-10-19T09:57:15+03:00", "utc": "1933-10-19T06:57:15Z", "ms": -1142442164860.5625 } }, "covered_min": 73, "window_min": 223, "qualifies": true }, { "local_date": "1933-10-20", "window": { "start": { "local": "1933-10-20T06:15:04+03:00", "utc": "1933-10-20T03:15:04Z", "ms": -1142369096109.8374 }, "end": { "local": "1933-10-20T09:57:26+03:00", "utc": "1933-10-20T06:57:26Z", "ms": -1142355753610.6045 } }, "covered_min": 0, "window_min": 222, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 08:45 on Thu 19 Oct to 06:13 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: 06:14–09:57 on the 19th, 06:15–09:57 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 73 of 223 minutes on the 19th and 0 of 222 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 104 s < 300 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Erbil, 1933: Thursday 19 October.", "fact": "confidence: boundary (margin)" } ], "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": "1933-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-19", "confidence": "boundary" } ], "quote": "In Erbil, Dyūta Pratipad 1933 falls on Thursday 19 October. Pratipadā runs from 08:45 on Thu 19 Oct to 06:13 on Fri 20 Oct and covers 73 of 223 minutes of pūrvāhṇa that forenoon. It is 1 min 44 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18677, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1933-10-20T06:13:20+03:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 }, "end": { "local": "1933-10-21T03:25:27+03:00", "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": "1933-10-20T06:13:20+03:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 }, "end": { "local": "1933-10-21T03:25:27+03:00", "utc": "1933-10-21T00:25:27Z", "ms": -1142292873130.7334 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-20", "window": { "start": { "local": "1933-10-20T11:24:38+03:00", "utc": "1933-10-20T08:24:38Z", "ms": -1142350522360.9883 }, "end": { "local": "1933-10-20T12:12:38+03:00", "utc": "1933-10-20T09:12:38Z", "ms": -1142347642360.9883 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-10-21", "window": { "start": { "local": "1933-10-21T11:24:28+03:00", "utc": "1933-10-21T08:24:28Z", "ms": -1142264132279.1704 }, "end": { "local": "1933-10-21T12:12:28+03:00", "utc": "1933-10-21T09:12:28Z", "ms": -1142261252279.1704 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 06:13 on Fri 20 Oct to 03:25 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: 11:25–12:13 on the 20th, 11:24–12:12 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 18677 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Erbil, 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 Erbil, Yama Dvitīyā (Bhai Dooj) 1933 falls on Friday 20 October. Dvitīyā runs from 06:13 on Fri 20 Oct to 03:25 on Sat 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33880, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-10-22T00:30:23+03:00", "utc": "1933-10-21T21:30:23Z", "ms": -1142216976950.6182 }, "end": { "local": "1933-10-22T21:36:58+03:00", "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": "1933-10-22T00:30:23+03:00", "utc": "1933-10-21T21:30:23Z", "ms": -1142216976950.6182 }, "end": { "local": "1933-10-22T21:36:58+03:00", "utc": "1933-10-22T18:36:58Z", "ms": -1142140981864.4548 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-21", "window": { "start": { "local": "1933-10-21T11:24:28+03:00", "utc": "1933-10-21T08:24:28Z", "ms": -1142264132279.1704 }, "end": { "local": "1933-10-21T12:12:28+03:00", "utc": "1933-10-21T09:12:28Z", "ms": -1142261252279.1704 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-22", "window": { "start": { "local": "1933-10-22T11:24:18+03:00", "utc": "1933-10-22T08:24:18Z", "ms": -1142177741547.7708 }, "end": { "local": "1933-10-22T12:12:18+03:00", "utc": "1933-10-22T09:12:18Z", "ms": -1142174861547.7708 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:30 on Sun 22 Oct to 21:37 on Sun 22 Oct.", "fact": "1933-10-21T21:30:23Z → 1933-10-22T18:36:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 21st, 11:24–12:12 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33880 s" }, { "step": "ruling", "text": "Nāga Caturthī, Erbil, 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 Erbil, Nāga Caturthī 1933 falls on Sunday 22 October. Caturthī runs from 00:30 on Sun 22 Oct to 21:37 on Sun 22 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-10-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33880, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-10-22T00:30:23+03:00", "utc": "1933-10-21T21:30:23Z", "ms": -1142216976950.6182 }, "end": { "local": "1933-10-22T21:36:58+03:00", "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": "1933-10-22T00:30:23+03:00", "utc": "1933-10-21T21:30:23Z", "ms": -1142216976950.6182 }, "end": { "local": "1933-10-22T21:36:58+03:00", "utc": "1933-10-22T18:36:58Z", "ms": -1142140981864.4548 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-21", "window": { "start": { "local": "1933-10-21T11:24:28+03:00", "utc": "1933-10-21T08:24:28Z", "ms": -1142264132279.1704 }, "end": { "local": "1933-10-21T12:12:28+03:00", "utc": "1933-10-21T09:12:28Z", "ms": -1142261252279.1704 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-22", "window": { "start": { "local": "1933-10-22T11:24:18+03:00", "utc": "1933-10-22T08:24:18Z", "ms": -1142177741547.7708 }, "end": { "local": "1933-10-22T12:12:18+03:00", "utc": "1933-10-22T09:12:18Z", "ms": -1142174861547.7708 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:30 on Sun 22 Oct to 21:37 on Sun 22 Oct.", "fact": "1933-10-21T21:30:23Z → 1933-10-22T18:36:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 21st, 11:24–12:12 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33880 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 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 Erbil, Vināyaka Caturthī 1933 falls on Sunday 22 October. Caturthī runs from 00:30 on Sun 22 Oct to 21:37 on Sun 22 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15150, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-10-23T18:52:56+03:00", "utc": "1933-10-23T15:52:56Z", "ms": -1142064423864.533 }, "end": { "local": "1933-10-24T16:24:32+03:00", "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": "1933-10-23T18:52:56+03:00", "utc": "1933-10-23T15:52:56Z", "ms": -1142064423864.533 }, "end": { "local": "1933-10-24T16:24:32+03:00", "utc": "1933-10-24T13:24:32Z", "ms": -1141986927866.8828 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-23", "window": { "start": { "local": "1933-10-23T11:24:10+03:00", "utc": "1933-10-23T08:24:10Z", "ms": -1142091350155.604 }, "end": { "local": "1933-10-23T12:12:10+03:00", "utc": "1933-10-23T09:12:10Z", "ms": -1142088470155.604 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-24", "window": { "start": { "local": "1933-10-24T11:24:02+03:00", "utc": "1933-10-24T08:24:02Z", "ms": -1142004958091.133 }, "end": { "local": "1933-10-24T12:12:02+03:00", "utc": "1933-10-24T09:12:02Z", "ms": -1142002078091.133 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 18:53 on Mon 23 Oct to 16:25 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: 11:24–12:12 on the 23rd, 11:24–12:12 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 15150 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Erbil, 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 Erbil, Sūrya Ṣaṣṭhī (Chhath) 1933 falls on Tuesday 24 October. Ṣaṣṭhī runs from 18:53 on Mon 23 Oct to 16:25 on Tue 24 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1142, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-10-25T14:16:16+03:00", "utc": "1933-10-25T11:16:16Z", "ms": -1141908223628.3665 }, "end": { "local": "1933-10-26T12:30:50+03:00", "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": "1933-10-25T14:16:16+03:00", "utc": "1933-10-25T11:16:16Z", "ms": -1141908223628.3665 }, "end": { "local": "1933-10-26T12:30:50+03:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-25", "window": { "start": { "local": "1933-10-25T11:23:55+03:00", "utc": "1933-10-25T08:23:55Z", "ms": -1141918565342.2275 }, "end": { "local": "1933-10-25T12:11:55+03:00", "utc": "1933-10-25T09:11:55Z", "ms": -1141915685342.2275 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-26", "window": { "start": { "local": "1933-10-26T11:23:48+03:00", "utc": "1933-10-26T08:23:48Z", "ms": -1141832171896.072 }, "end": { "local": "1933-10-26T12:11:48+03:00", "utc": "1933-10-26T09:11:48Z", "ms": -1141829291896.072 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 14:16 on Wed 25 Oct to 12:31 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: 11:24–12:12 on the 25th, 11:24–12:12 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 1142 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Erbil, 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 Erbil, Gopāṣṭamī 1933 falls on Thursday 26 October. Aṣṭamī runs from 14:16 on Wed 25 Oct to 12:31 on Thu 26 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4213, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1933-10-26T12:30:50+03:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "end": { "local": "1933-10-27T11:09:14+03:00", "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": "1933-10-26T12:30:50+03:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "end": { "local": "1933-10-27T11:09:14+03:00", "utc": "1933-10-27T08:09:14Z", "ms": -1141746646229.552 } }, "kaala": "purvahna", "days": [ { "local_date": "1933-10-26", "window": { "start": { "local": "1933-10-26T06:20:40+03:00", "utc": "1933-10-26T03:20:40Z", "ms": -1141850359720.3806 }, "end": { "local": "1933-10-26T09:58:45+03:00", "utc": "1933-10-26T06:58:45Z", "ms": -1141837274504.1748 } }, "covered_min": 0, "window_min": 218, "qualifies": false }, { "local_date": "1933-10-27", "window": { "start": { "local": "1933-10-27T06:21:37+03:00", "utc": "1933-10-27T03:21:37Z", "ms": -1141763902514.7798 }, "end": { "local": "1933-10-27T09:59:01+03:00", "utc": "1933-10-27T06:59:01Z", "ms": -1141750859331.0623 } }, "covered_min": 217, "window_min": 217, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 12:31 on Thu 26 Oct to 11:09 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: 06:21–09:59 on the 26th, 06:22–09:59 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 218 minutes on the 26th and 217 of 217 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 4213 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Erbil, 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 Erbil, Akṣaya Navamī (Amla Navami) 1933 falls on Friday 27 October. Navamī runs from 12:31 on Thu 26 Oct to 11:09 on Fri 27 Oct and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 868, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1933-10-26T12:30:50+03:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "end": { "local": "1933-10-27T11:09:14+03:00", "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": "1933-10-26T12:30:50+03:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "end": { "local": "1933-10-27T11:09:14+03:00", "utc": "1933-10-27T08:09:14Z", "ms": -1141746646229.552 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-26", "window": { "start": { "local": "1933-10-26T11:23:48+03:00", "utc": "1933-10-26T08:23:48Z", "ms": -1141832171896.072 }, "end": { "local": "1933-10-26T12:11:48+03:00", "utc": "1933-10-26T09:11:48Z", "ms": -1141829291896.072 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-27", "window": { "start": { "local": "1933-10-27T11:23:42+03:00", "utc": "1933-10-27T08:23:42Z", "ms": -1141745777739.2036 }, "end": { "local": "1933-10-27T12:11:42+03:00", "utc": "1933-10-27T09:11:42Z", "ms": -1141742897739.2036 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 12:31 on Thu 26 Oct to 11:09 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: 11:24–12:12 on the 26th, 11:24–12:12 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 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: purvaviddha → second-day · margin 868 s" }, { "step": "ruling", "text": "Durgā Navamī, Erbil, 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": "1933-10-26", "confidence": "determinate" } ], "quote": "In Erbil, Durgā Navamī 1933 falls on Friday 27 October. Navamī runs from 12:31 on Thu 26 Oct to 11:09 on Fri 27 Oct, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-10-29", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11560, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-10-28T10:11:17+03:00", "utc": "1933-10-28T07:11:17Z", "ms": -1141663722791.7444 }, "end": { "local": "1933-10-29T09:36:13+03:00", "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": "1933-10-28T10:11:17+03:00", "utc": "1933-10-28T07:11:17Z", "ms": -1141663722791.7444 }, "end": { "local": "1933-10-29T09:36:13+03:00", "utc": "1933-10-29T06:36:13Z", "ms": -1141579427468.9307 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-10-28", "window": { "start": { "local": "1933-10-28T06:22:35+03:00", "utc": "1933-10-28T03:22:35Z", "ms": -1141677444998.454 }, "end": { "local": "1933-10-28T06:22:35+03:00", "utc": "1933-10-28T03:22:35Z", "ms": -1141677444998.454 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-29", "window": { "start": { "local": "1933-10-29T06:23:33+03:00", "utc": "1933-10-29T03:23:33Z", "ms": -1141590987176.14 }, "end": { "local": "1933-10-29T06:23:33+03:00", "utc": "1933-10-29T03:23:33Z", "ms": -1141590987176.14 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:11 on Sat 28 Oct to 09:36 on Sun 29 Oct.", "fact": "1933-10-28T07:11:17Z → 1933-10-29T06:36:13Z" }, { "step": "kaala", "text": "Sunrise is at 06:23 on the 28th and 06:24 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 11560 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Erbil, 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 Erbil, Prabodhinī Ekādaśī 1933 falls on Sunday 29 October. Ekādaśī runs from 10:11 on Sat 28 Oct to 09:36 on Sun 29 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-10-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27427, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-10-30T09:23:16+03:00", "utc": "1933-10-30T06:23:16Z", "ms": -1141493804325.7988 }, "end": { "local": "1933-10-31T09:32:17+03:00", "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": "1933-10-30T09:23:16+03:00", "utc": "1933-10-30T06:23:16Z", "ms": -1141493804325.7988 }, "end": { "local": "1933-10-31T09:32:17+03:00", "utc": "1933-10-31T06:32:17Z", "ms": -1141406863478.539 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-30", "window": { "start": { "local": "1933-10-30T17:10:27+03:00", "utc": "1933-10-30T14:10:27Z", "ms": -1141465772673.8013 }, "end": { "local": "1933-10-30T18:56:28+03:00", "utc": "1933-10-30T15:56:28Z", "ms": -1141459412401.7253 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1933-10-31", "window": { "start": { "local": "1933-10-31T17:09:23+03:00", "utc": "1933-10-31T14:09:23Z", "ms": -1141379436810.1226 }, "end": { "local": "1933-10-31T18:55:40+03:00", "utc": "1933-10-31T15:55:40Z", "ms": -1141373060158.6345 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:23 on Mon 30 Oct to 09:32 on Tue 31 Oct.", "fact": "1933-10-30T06:23:16Z → 1933-10-31T06:32:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:10–18:56 on the 30th, 17:09–18:56 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 106 of 106 minutes on the 30th and 0 of 106 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 27427 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Monday 30 October. Trayodaśī runs from 09:23 on Mon 30 Oct to 09:32 on Tue 31 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1451, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-11-01T10:03:51+03:00", "utc": "1933-11-01T07:03:51Z", "ms": -1141318568706.6667 }, "end": { "local": "1933-11-02T10:59:12+03:00", "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": "1933-11-01T10:03:51+03:00", "utc": "1933-11-01T07:03:51Z", "ms": -1141318568706.6667 }, "end": { "local": "1933-11-02T10:59:12+03:00", "utc": "1933-11-02T07:59:12Z", "ms": -1141228848385.0725 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-01", "window": { "start": { "local": "1933-11-01T11:23:24+03:00", "utc": "1933-11-01T08:23:24Z", "ms": -1141313795798.536 }, "end": { "local": "1933-11-01T12:11:24+03:00", "utc": "1933-11-01T09:11:24Z", "ms": -1141310915798.536 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-02", "window": { "start": { "local": "1933-11-02T11:23:23+03:00", "utc": "1933-11-02T08:23:23Z", "ms": -1141227397080.3933 }, "end": { "local": "1933-11-02T12:11:23+03:00", "utc": "1933-11-02T09:11:23Z", "ms": -1141224517080.3933 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:04 on Wed 1 Nov to 10:59 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: 11:23–12:11 on the 1st, 11:23–12:11 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1451 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Erbil, 1933: Wednesday 1 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": "1933-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-01", "confidence": "boundary" } ], "quote": "In Erbil, Kārtikī Pūrṇimā 1933 falls on Wednesday 1 November. Pūrṇimā runs from 10:04 on Wed 1 Nov to 10:59 on Thu 2 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35516, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-11-01T10:03:51+03:00", "utc": "1933-11-01T07:03:51Z", "ms": -1141318568706.6667 }, "end": { "local": "1933-11-02T10:59:12+03:00", "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": "1933-11-01T10:03:51+03:00", "utc": "1933-11-01T07:03:51Z", "ms": -1141318568706.6667 }, "end": { "local": "1933-11-02T10:59:12+03:00", "utc": "1933-11-02T07:59:12Z", "ms": -1141228848385.0725 } }, "kaala": "nishita", "days": [ { "local_date": "1933-10-31", "window": { "start": { "local": "1933-10-31T23:23:56+03:00", "utc": "1933-10-31T20:23:56Z", "ms": -1141356964367.043 }, "end": { "local": "1933-11-01T00:11:56+03:00", "utc": "1933-10-31T21:11:56Z", "ms": -1141354084367.043 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-11-01", "window": { "start": { "local": "1933-11-01T23:23:54+03:00", "utc": "1933-11-01T20:23:54Z", "ms": -1141270566302.5981 }, "end": { "local": "1933-11-02T00:11:54+03:00", "utc": "1933-11-01T21:11:54Z", "ms": -1141267686302.5981 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:04 on Wed 1 Nov to 10:59 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: 23:24–00:12 on the 31st, 23:24–00:12 on the 1st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 0 of 48 minutes on the 31st and 48 of 48 on the 1st.", "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 35516 s" }, { "step": "ruling", "text": "Rāsayātrā, Erbil, 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 Erbil, Rāsayātrā 1933 falls on Wednesday 1 November. Pūrṇimā runs from 10:04 on Wed 1 Nov to 10:59 on Thu 2 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-11-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3812, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-11-05T16:14:12+03:00", "utc": "1933-11-05T13:14:12Z", "ms": -1140950748259.2788 }, "end": { "local": "1933-11-06T18:42:07+03:00", "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": "1933-11-05T16:14:12+03:00", "utc": "1933-11-05T13:14:12Z", "ms": -1140950748259.2788 }, "end": { "local": "1933-11-06T18:42:07+03:00", "utc": "1933-11-06T15:42:07Z", "ms": -1140855472571.3481 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-11-05", "window": { "start": { "local": "1933-11-05T18:53:34+03:00", "utc": "1933-11-05T15:53:34Z", "ms": -1140941185830.0276 }, "end": { "local": "1933-11-05T18:53:34+03:00", "utc": "1933-11-05T15:53:34Z", "ms": -1140941185830.0276 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-11-06", "window": { "start": { "local": "1933-11-06T19:45:39+03:00", "utc": "1933-11-06T16:45:39Z", "ms": -1140851660874.156 }, "end": { "local": "1933-11-06T19:45:39+03:00", "utc": "1933-11-06T16:45:39Z", "ms": -1140851660874.156 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:14 on Sun 5 Nov to 18:42 on Mon 6 Nov.", "fact": "1933-11-05T13:14:12Z → 1933-11-06T15:42:07Z" }, { "step": "kaala", "text": "Moonrise is at 18:54 on the 5th and 19:46 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 3812 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 1933: Sunday 5 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": "1933-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-05", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī 1933 falls on Sunday 5 November. Caturthī runs from 16:14 on Sun 5 Nov to 18:42 on Mon 6 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/1933/sankashta-chaturthi?on=1933-11-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/ekadashi?on=1933-11-13", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3801, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-11-13T05:35:10+03:00", "utc": "1933-11-13T02:35:10Z", "ms": -1140297890075.7927 }, "end": { "local": "1933-11-14T05:00:30+03:00", "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": "1933-11-13T05:35:10+03:00", "utc": "1933-11-13T02:35:10Z", "ms": -1140297890075.7927 }, "end": { "local": "1933-11-14T05:00:30+03:00", "utc": "1933-11-14T02:00:30Z", "ms": -1140213570264.5994 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-11-13", "window": { "start": { "local": "1933-11-13T06:38:31+03:00", "utc": "1933-11-13T03:38:31Z", "ms": -1140294089195.8413 }, "end": { "local": "1933-11-13T06:38:31+03:00", "utc": "1933-11-13T03:38:31Z", "ms": -1140294089195.8413 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-11-14", "window": { "start": { "local": "1933-11-14T06:39:32+03:00", "utc": "1933-11-14T03:39:32Z", "ms": -1140207628033.9812 }, "end": { "local": "1933-11-14T06:39:32+03:00", "utc": "1933-11-14T03:39:32Z", "ms": -1140207628033.9812 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:35 on Mon 13 Nov to 05:00 on Tue 14 Nov.", "fact": "1933-11-13T02:35:10Z → 1933-11-14T02:00:30Z" }, { "step": "kaala", "text": "Sunrise is at 06:39 on the 13th and 06:40 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3801 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Erbil, 1933: Monday 13 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": "1933-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-13", "confidence": "determinate" } ], "quote": "In Erbil, Utpannā Ekādaśī 1933 falls on Monday 13 November. Ekādaśī runs from 05:35 on Mon 13 Nov to 05:00 on Tue 14 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/1933/ekadashi?on=1933-11-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/pradosha-vrata?on=1933-11-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23870, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-11-15T03:34:50+03:00", "utc": "1933-11-15T00:34:50Z", "ms": -1140132309582.8838 }, "end": { "local": "1933-11-16T01:24:06+03:00", "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": "1933-11-15T03:34:50+03:00", "utc": "1933-11-15T00:34:50Z", "ms": -1140132309582.8838 }, "end": { "local": "1933-11-16T01:24:06+03:00", "utc": "1933-11-15T22:24:06Z", "ms": -1140053754155.6382 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-11-14", "window": { "start": { "local": "1933-11-14T16:56:54+03:00", "utc": "1933-11-14T13:56:54Z", "ms": -1140170585724.2493 }, "end": { "local": "1933-11-14T18:46:43+03:00", "utc": "1933-11-14T15:46:43Z", "ms": -1140163996541.4773 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "1933-11-15", "window": { "start": { "local": "1933-11-15T16:56:13+03:00", "utc": "1933-11-15T13:56:13Z", "ms": -1140084227289.26 }, "end": { "local": "1933-11-15T18:46:16+03:00", "utc": "1933-11-15T15:46:16Z", "ms": -1140077624409.4438 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:35 on Wed 15 Nov to 01:24 on Thu 16 Nov.", "fact": "1933-11-15T00:34:50Z → 1933-11-15T22:24:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:57–18:47 on the 14th, 16:56–18:46 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 110 minutes on the 14th and 110 of 110 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 23870 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 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 Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Wednesday 15 November. Trayodaśī runs from 03:35 on Wed 15 Nov to 01:24 on Thu 16 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/shivaratri?on=1933-11-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-15", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2888, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-11-16T01:24:06+03:00", "utc": "1933-11-15T22:24:06Z", "ms": -1140053754155.6382 }, "end": { "local": "1933-11-16T22:36:56+03:00", "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": "1933-11-16T01:24:06+03:00", "utc": "1933-11-15T22:24:06Z", "ms": -1140053754155.6382 }, "end": { "local": "1933-11-16T22:36:56+03:00", "utc": "1933-11-16T19:36:56Z", "ms": -1139977383847.8616 } }, "kaala": "nishita", "days": [ { "local_date": "1933-11-15", "window": { "start": { "local": "1933-11-15T23:24:54+03:00", "utc": "1933-11-15T20:24:54Z", "ms": -1140060906489.9492 }, "end": { "local": "1933-11-16T00:12:54+03:00", "utc": "1933-11-15T21:12:54Z", "ms": -1140058026489.9492 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-11-16", "window": { "start": { "local": "1933-11-16T23:25:04+03:00", "utc": "1933-11-16T20:25:04Z", "ms": -1139974495846.775 }, "end": { "local": "1933-11-17T00:13:04+03:00", "utc": "1933-11-16T21:13:04Z", "ms": -1139971615846.775 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:24 on Thu 16 Nov to 22:37 on Thu 16 Nov.", "fact": "1933-11-15T22:24:06Z → 1933-11-16T19:36:56Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:25–00:13 on the 15th, 23:25–00:13 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 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": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 2888 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 1933: Wednesday 15 November.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-11-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-15", "confidence": "boundary" } ], "quote": "In Erbil, Śivarātri 1933 falls on Wednesday 15 November. Caturdaśī runs from 01:24 on Thu 16 Nov to 22:37 on Thu 16 Nov, and reaches niśītha on neither day.", "cite": "https://ahargana.org/erbil/festivals/1933/shivaratri?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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-11-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8820, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-11-20T08:58:24+03:00", "utc": "1933-11-20T05:58:24Z", "ms": -1139680895714.3235 }, "end": { "local": "1933-11-21T05:49:48+03:00", "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": "1933-11-20T08:58:24+03:00", "utc": "1933-11-20T05:58:24Z", "ms": -1139680895714.3235 }, "end": { "local": "1933-11-21T05:49:48+03:00", "utc": "1933-11-21T02:49:48Z", "ms": -1139605811745.0264 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-20", "window": { "start": { "local": "1933-11-20T11:25:25+03:00", "utc": "1933-11-20T08:25:25Z", "ms": -1139672075276.8223 }, "end": { "local": "1933-11-20T12:13:25+03:00", "utc": "1933-11-20T09:13:25Z", "ms": -1139669195276.8223 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-21", "window": { "start": { "local": "1933-11-21T11:25:40+03:00", "utc": "1933-11-21T08:25:40Z", "ms": -1139585660446.4634 }, "end": { "local": "1933-11-21T12:13:40+03:00", "utc": "1933-11-21T09:13:40Z", "ms": -1139582780446.4634 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:58 on Mon 20 Nov to 05:50 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: 11:25–12:13 on the 20th, 11:26–12:14 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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8820 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 1933: Monday 20 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": "1933-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-20", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 1933 falls on Monday 20 November. Caturthī runs from 08:58 on Mon 20 Nov to 05:50 on Tue 21 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/1933/vinayaka-chaturthi?on=1933-11-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20151, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-11-21T05:49:48+03:00", "utc": "1933-11-21T02:49:48Z", "ms": -1139605811745.0264 }, "end": { "local": "1933-11-22T03:05:50+03:00", "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": "1933-11-21T05:49:48+03:00", "utc": "1933-11-21T02:49:48Z", "ms": -1139605811745.0264 }, "end": { "local": "1933-11-22T03:05:50+03:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-21", "window": { "start": { "local": "1933-11-21T11:25:40+03:00", "utc": "1933-11-21T08:25:40Z", "ms": -1139585660446.4634 }, "end": { "local": "1933-11-21T12:13:40+03:00", "utc": "1933-11-21T09:13:40Z", "ms": -1139582780446.4634 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-22", "window": { "start": { "local": "1933-11-22T11:25:55+03:00", "utc": "1933-11-22T08:25:55Z", "ms": -1139499244822.9592 }, "end": { "local": "1933-11-22T12:13:55+03:00", "utc": "1933-11-22T09:13:55Z", "ms": -1139496364822.9592 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 05:50 on Tue 21 Nov to 03:06 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: 11:26–12:14 on the 21st, 11:26–12:14 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 20151 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Erbil, 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 Erbil, Nāga Pañcamī (Mārgaśīrṣa) 1933 falls on Tuesday 21 November. Pañcamī runs from 05:50 on Tue 21 Nov to 03:06 on Wed 22 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30005, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-11-22T03:05:50+03:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "end": { "local": "1933-11-23T00:52:39+03:00", "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": "1933-11-22T03:05:50+03:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "end": { "local": "1933-11-23T00:52:39+03:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-22", "window": { "start": { "local": "1933-11-22T11:25:55+03:00", "utc": "1933-11-22T08:25:55Z", "ms": -1139499244822.9592 }, "end": { "local": "1933-11-22T12:13:55+03:00", "utc": "1933-11-22T09:13:55Z", "ms": -1139496364822.9592 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-23", "window": { "start": { "local": "1933-11-23T11:26:12+03:00", "utc": "1933-11-23T08:26:12Z", "ms": -1139412828419.4832 }, "end": { "local": "1933-11-23T12:14:12+03:00", "utc": "1933-11-23T09:14:12Z", "ms": -1139409948419.4832 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:06 on Wed 22 Nov to 00:53 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: 11:26–12:14 on the 22nd, 11:26–12:14 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 30005 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Erbil, 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 Erbil, Campā Ṣaṣṭhī 1933 falls on Wednesday 22 November. Ṣaṣṭhī runs from 03:06 on Wed 22 Nov to 00:53 on Thu 23 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30005, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-11-22T03:05:50+03:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "end": { "local": "1933-11-23T00:52:39+03:00", "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": "1933-11-22T03:05:50+03:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "end": { "local": "1933-11-23T00:52:39+03:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-22", "window": { "start": { "local": "1933-11-22T11:25:55+03:00", "utc": "1933-11-22T08:25:55Z", "ms": -1139499244822.9592 }, "end": { "local": "1933-11-22T12:13:55+03:00", "utc": "1933-11-22T09:13:55Z", "ms": -1139496364822.9592 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-23", "window": { "start": { "local": "1933-11-23T11:26:12+03:00", "utc": "1933-11-23T08:26:12Z", "ms": -1139412828419.4832 }, "end": { "local": "1933-11-23T12:14:12+03:00", "utc": "1933-11-23T09:14:12Z", "ms": -1139409948419.4832 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:06 on Wed 22 Nov to 00:53 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: 11:26–12:14 on the 22nd, 11:26–12:14 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 30005 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Erbil, 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 Erbil, Skanda Ṣaṣṭhī 1933 falls on Wednesday 22 November. Ṣaṣṭhī runs from 03:06 on Wed 22 Nov to 00:53 on Thu 23 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38012, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-11-23T00:52:39+03:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 }, "end": { "local": "1933-11-23T23:14:05+03:00", "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": "1933-11-23T00:52:39+03:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 }, "end": { "local": "1933-11-23T23:14:05+03:00", "utc": "1933-11-23T20:14:05Z", "ms": -1139370354801.4604 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-23", "window": { "start": { "local": "1933-11-23T11:26:12+03:00", "utc": "1933-11-23T08:26:12Z", "ms": -1139412828419.4832 }, "end": { "local": "1933-11-23T12:14:12+03:00", "utc": "1933-11-23T09:14:12Z", "ms": -1139409948419.4832 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-24", "window": { "start": { "local": "1933-11-24T11:26:29+03:00", "utc": "1933-11-24T08:26:29Z", "ms": -1139326411248.9153 }, "end": { "local": "1933-11-24T12:14:29+03:00", "utc": "1933-11-24T09:14:29Z", "ms": -1139323531248.9153 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 00:53 on Thu 23 Nov to 23:14 on Thu 23 Nov.", "fact": "1933-11-22T21:52:39Z → 1933-11-23T20:14:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 23rd, 11:26–12:14 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 38012 s" }, { "step": "ruling", "text": "Mitra Saptamī, Erbil, 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 Erbil, Mitra Saptamī 1933 falls on Thursday 23 November. Saptamī runs from 00:53 on Thu 23 Nov to 23:14 on Thu 23 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-11-27", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30599, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-11-26T21:49:16+03:00", "utc": "1933-11-26T18:49:16Z", "ms": -1139116244240.609 }, "end": { "local": "1933-11-27T22:23:33+03:00", "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": "1933-11-26T21:49:16+03:00", "utc": "1933-11-26T18:49:16Z", "ms": -1139116244240.609 }, "end": { "local": "1933-11-27T22:23:33+03:00", "utc": "1933-11-27T19:23:33Z", "ms": -1139027787107.0835 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-11-27", "window": { "start": { "local": "1933-11-27T06:52:34+03:00", "utc": "1933-11-27T03:52:34Z", "ms": -1139083646026.3972 }, "end": { "local": "1933-11-27T06:52:34+03:00", "utc": "1933-11-27T03:52:34Z", "ms": -1139083646026.3972 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-11-28", "window": { "start": { "local": "1933-11-28T06:53:32+03:00", "utc": "1933-11-28T03:53:32Z", "ms": -1138997188386.7485 }, "end": { "local": "1933-11-28T06:53:32+03:00", "utc": "1933-11-28T03:53:32Z", "ms": -1138997188386.7485 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:49 on Sun 26 Nov to 22:24 on Mon 27 Nov.", "fact": "1933-11-26T18:49:16Z → 1933-11-27T19:23:33Z" }, { "step": "kaala", "text": "Sunrise is at 06:53 on the 27th and 06:54 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 30599 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Erbil, 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 Erbil, Mokṣadā Ekādaśī 1933 falls on Monday 27 November. Ekādaśī runs from 21:49 on Sun 26 Nov to 22:24 on Mon 27 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36488, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-11-27T22:23:33+03:00", "utc": "1933-11-27T19:23:33Z", "ms": -1139027787107.0835 }, "end": { "local": "1933-11-28T23:23:27+03:00", "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": "1933-11-27T22:23:33+03:00", "utc": "1933-11-27T19:23:33Z", "ms": -1139027787107.0835 }, "end": { "local": "1933-11-28T23:23:27+03:00", "utc": "1933-11-28T20:23:27Z", "ms": -1138937792608.613 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-27", "window": { "start": { "local": "1933-11-27T11:27:25+03:00", "utc": "1933-11-27T08:27:25Z", "ms": -1139067155262.7422 }, "end": { "local": "1933-11-27T12:15:25+03:00", "utc": "1933-11-27T09:15:25Z", "ms": -1139064275262.7422 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-11-28", "window": { "start": { "local": "1933-11-28T11:27:45+03:00", "utc": "1933-11-28T08:27:45Z", "ms": -1138980735153.2104 }, "end": { "local": "1933-11-28T12:15:45+03:00", "utc": "1933-11-28T09:15:45Z", "ms": -1138977855153.2104 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 22:24 on Mon 27 Nov to 23:23 on Tue 28 Nov.", "fact": "1933-11-27T19:23:33Z → 1933-11-28T20:23:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 27th, 11:28–12:16 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36488 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Erbil, 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 Erbil, Akhaṇḍa Dvādaśī 1933 falls on Tuesday 28 November. Dvādaśī runs from 22:24 on Mon 27 Nov to 23:23 on Tue 28 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-11-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-11-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16853, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-11-28T23:23:27+03:00", "utc": "1933-11-28T20:23:27Z", "ms": -1138937792608.613 }, "end": { "local": "1933-11-30T00:46:02+03:00", "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": "1933-11-28T23:23:27+03:00", "utc": "1933-11-28T20:23:27Z", "ms": -1138937792608.613 }, "end": { "local": "1933-11-30T00:46:02+03:00", "utc": "1933-11-29T21:46:02Z", "ms": -1138846437702.844 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-11-28", "window": { "start": { "local": "1933-11-28T16:49:58+03:00", "utc": "1933-11-28T13:49:58Z", "ms": -1138961401919.6726 }, "end": { "local": "1933-11-28T18:42:34+03:00", "utc": "1933-11-28T15:42:34Z", "ms": -1138954645839.8728 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "1933-11-29", "window": { "start": { "local": "1933-11-29T16:49:43+03:00", "utc": "1933-11-29T13:49:43Z", "ms": -1138875017365.4185 }, "end": { "local": "1933-11-29T18:42:28+03:00", "utc": "1933-11-29T15:42:28Z", "ms": -1138868251699.7239 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:23 on Tue 28 Nov to 00:46 on Thu 30 Nov.", "fact": "1933-11-28T20:23:27Z → 1933-11-29T21:46:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:50–18:43 on the 28th, 16:50–18:42 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 113 minutes on the 28th and 113 of 113 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 16853 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 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 Erbil, Śukla Pradoṣa Vrata 1933 falls on Wednesday 29 November. Trayodaśī runs from 23:23 on Tue 28 Nov to 00:46 on Thu 30 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28002, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-12-01T02:29:06+03:00", "utc": "1933-11-30T23:29:06Z", "ms": -1138753854405.8213 }, "end": { "local": "1933-12-02T04:30:53+03:00", "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": "1933-12-01T02:29:06+03:00", "utc": "1933-11-30T23:29:06Z", "ms": -1138753854405.8213 }, "end": { "local": "1933-12-02T04:30:53+03:00", "utc": "1933-12-02T01:30:53Z", "ms": -1138660147007.7598 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-11-30", "window": { "start": { "local": "1933-11-30T16:49:29+03:00", "utc": "1933-11-30T13:49:29Z", "ms": -1138788630823.5754 }, "end": { "local": "1933-11-30T18:42:24+03:00", "utc": "1933-11-30T15:42:24Z", "ms": -1138781855925.0952 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "1933-12-01", "window": { "start": { "local": "1933-12-01T16:49:18+03:00", "utc": "1933-12-01T13:49:18Z", "ms": -1138702242282.6428 }, "end": { "local": "1933-12-01T18:42:21+03:00", "utc": "1933-12-01T15:42:21Z", "ms": -1138695458511.9268 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 02:29 on Fri 1 Dec to 04:31 on Sat 2 Dec.", "fact": "1933-11-30T23:29:06Z → 1933-12-02T01:30:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:49–18:42 on the 30th, 16:49–18:42 on the 1st.", "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 113 minutes on the 30th and 113 of 113 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28002 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Erbil, 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 Erbil, Dattātreyotpatti (Datta Jayanti) 1933 falls on Friday 1 December. Pūrṇimā runs from 02:29 on Fri 1 Dec to 04:31 on Sat 2 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/sankashta-chaturthi?on=1933-12-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-12-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20988, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-12-05T12:01:59+03:00", "utc": "1933-12-05T09:01:59Z", "ms": -1138373880832.3982 }, "end": { "local": "1933-12-06T14:42:41+03:00", "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": "1933-12-05T12:01:59+03:00", "utc": "1933-12-05T09:01:59Z", "ms": -1138373880832.3982 }, "end": { "local": "1933-12-06T14:42:41+03:00", "utc": "1933-12-06T11:42:41Z", "ms": -1138277838796.9739 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-12-05", "window": { "start": { "local": "1933-12-05T19:32:56+03:00", "utc": "1933-12-05T16:32:56Z", "ms": -1138346824214.562 }, "end": { "local": "1933-12-05T19:32:56+03:00", "utc": "1933-12-05T16:32:56Z", "ms": -1138346824214.562 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-12-06", "window": { "start": { "local": "1933-12-06T20:32:30+03:00", "utc": "1933-12-06T17:32:30Z", "ms": -1138256850342.1716 }, "end": { "local": "1933-12-06T20:32:30+03:00", "utc": "1933-12-06T17:32:30Z", "ms": -1138256850342.1716 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:02 on Tue 5 Dec to 14:43 on Wed 6 Dec.", "fact": "1933-12-05T09:01:59Z → 1933-12-06T11:42:41Z" }, { "step": "kaala", "text": "Moonrise is at 19:33 on the 5th and 20:32 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 20988 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 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 Erbil, Saṅkaṣṭa Caturthī 1933 falls on Tuesday 5 December. Caturthī runs from 12:02 on Tue 5 Dec to 14:43 on Wed 6 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-12-13", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-12-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37517, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-12-12T20:41:05+03:00", "utc": "1933-12-12T17:41:05Z", "ms": -1137737935306.2734 }, "end": { "local": "1933-12-13T18:53:33+03:00", "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": "1933-12-12T20:41:05+03:00", "utc": "1933-12-12T17:41:05Z", "ms": -1137737935306.2734 }, "end": { "local": "1933-12-13T18:53:33+03:00", "utc": "1933-12-13T15:53:33Z", "ms": -1137657987437.6406 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-12-13", "window": { "start": { "local": "1933-12-13T07:06:22+03:00", "utc": "1933-12-13T04:06:22Z", "ms": -1137700417922.7983 }, "end": { "local": "1933-12-13T07:06:22+03:00", "utc": "1933-12-13T04:06:22Z", "ms": -1137700417922.7983 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-12-14", "window": { "start": { "local": "1933-12-14T07:07:05+03:00", "utc": "1933-12-14T04:07:05Z", "ms": -1137613974964.9465 }, "end": { "local": "1933-12-14T07:07:05+03:00", "utc": "1933-12-14T04:07:05Z", "ms": -1137613974964.9465 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:41 on Tue 12 Dec to 18:54 on Wed 13 Dec.", "fact": "1933-12-12T17:41:05Z → 1933-12-13T15:53:33Z" }, { "step": "kaala", "text": "Sunrise is at 07:06 on the 13th and 07:07 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 37517 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Erbil, 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 Erbil, Saphalā Ekādaśī 1933 falls on Wednesday 13 December. Ekādaśī runs from 20:41 on Tue 12 Dec to 18:54 on Wed 13 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-12-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-12-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1709, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-12-14T16:21:24+03:00", "utc": "1933-12-14T13:21:24Z", "ms": -1137580715882.5256 }, "end": { "local": "1933-12-15T13:13:26+03:00", "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": "1933-12-14T16:21:24+03:00", "utc": "1933-12-14T13:21:24Z", "ms": -1137580715882.5256 }, "end": { "local": "1933-12-15T13:13:26+03:00", "utc": "1933-12-15T10:13:26Z", "ms": -1137505593503.1912 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-12-14", "window": { "start": { "local": "1933-12-14T16:49:53+03:00", "utc": "1933-12-14T13:49:53Z", "ms": -1137579007075.758 }, "end": { "local": "1933-12-14T18:44:16+03:00", "utc": "1933-12-14T15:44:16Z", "ms": -1137572143909.99 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "1933-12-15", "window": { "start": { "local": "1933-12-15T16:50:10+03:00", "utc": "1933-12-15T13:50:10Z", "ms": -1137492590325.937 }, "end": { "local": "1933-12-15T18:44:36+03:00", "utc": "1933-12-15T15:44:36Z", "ms": -1137485724025.797 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:21 on Thu 14 Dec to 13:13 on Fri 15 Dec.", "fact": "1933-12-14T13:21:24Z → 1933-12-15T10:13:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:50–18:44 on the 14th, 16:50–18:45 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 114 of 114 minutes on the 14th and 0 of 114 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 1709 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 1933: Thursday 14 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": "1933-12-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-14", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 1933 falls on Thursday 14 December. Trayodaśī runs from 16:21 on Thu 14 Dec to 13:13 on Fri 15 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/1933/pradosha-vrata?on=1933-12-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/1933/shivaratri?on=1933-12-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33408, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-12-15T13:13:26+03:00", "utc": "1933-12-15T10:13:26Z", "ms": -1137505593503.1912 }, "end": { "local": "1933-12-16T09:40:06+03:00", "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": "1933-12-15T13:13:26+03:00", "utc": "1933-12-15T10:13:26Z", "ms": -1137505593503.1912 }, "end": { "local": "1933-12-16T09:40:06+03:00", "utc": "1933-12-16T06:40:06Z", "ms": -1137431993711.3606 } }, "kaala": "nishita", "days": [ { "local_date": "1933-12-14", "window": { "start": { "local": "1933-12-14T23:34:50+03:00", "utc": "1933-12-14T20:34:50Z", "ms": -1137554710204.1282 }, "end": { "local": "1933-12-15T00:22:50+03:00", "utc": "1933-12-14T21:22:50Z", "ms": -1137551830204.1282 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-12-15", "window": { "start": { "local": "1933-12-15T23:35:18+03:00", "utc": "1933-12-15T20:35:18Z", "ms": -1137468281700.4124 }, "end": { "local": "1933-12-16T00:23:18+03:00", "utc": "1933-12-15T21:23:18Z", "ms": -1137465401700.4124 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:13 on Fri 15 Dec to 09:40 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: 23:35–00:23 on the 14th, 23:35–00:23 on the 15th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33408 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 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 Erbil, Śivarātri 1933 falls on Friday 15 December. Caturdaśī runs from 13:13 on Fri 15 Dec to 09:40 on Sat 16 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/vinayaka-chaturthi?on=1933-12-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-12-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13188, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-12-19T18:59:05+03:00", "utc": "1933-12-19T15:59:05Z", "ms": -1137139254917.1587 }, "end": { "local": "1933-12-20T16:05:16+03:00", "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": "1933-12-19T18:59:05+03:00", "utc": "1933-12-19T15:59:05Z", "ms": -1137139254917.1587 }, "end": { "local": "1933-12-20T16:05:16+03:00", "utc": "1933-12-20T13:05:16Z", "ms": -1137063284373.9082 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-12-19", "window": { "start": { "local": "1933-12-19T11:36:57+03:00", "utc": "1933-12-19T08:36:57Z", "ms": -1137165782678.787 }, "end": { "local": "1933-12-19T12:24:57+03:00", "utc": "1933-12-19T09:24:57Z", "ms": -1137162902678.787 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-12-20", "window": { "start": { "local": "1933-12-20T11:37:28+03:00", "utc": "1933-12-20T08:37:28Z", "ms": -1137079352494.9048 }, "end": { "local": "1933-12-20T12:25:28+03:00", "utc": "1933-12-20T09:25:28Z", "ms": -1137076472494.9048 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:59 on Tue 19 Dec to 16:05 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: 11:37–12:25 on the 19th, 11:37–12:25 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 13188 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 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 Erbil, Vināyaka Caturthī 1933 falls on Wednesday 20 December. Caturthī runs from 18:59 on Tue 19 Dec to 16:05 on Wed 20 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/ekadashi?on=1933-12-27", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-12-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20193, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-12-26T12:50:17+03:00", "utc": "1933-12-26T09:50:17Z", "ms": -1136556583350.836 }, "end": { "local": "1933-12-27T14:28:15+03:00", "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": "1933-12-26T12:50:17+03:00", "utc": "1933-12-26T09:50:17Z", "ms": -1136556583350.836 }, "end": { "local": "1933-12-27T14:28:15+03:00", "utc": "1933-12-27T11:28:15Z", "ms": -1136464304517.4387 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-12-26", "window": { "start": { "local": "1933-12-26T07:13:44+03:00", "utc": "1933-12-26T04:13:44Z", "ms": -1136576776365.768 }, "end": { "local": "1933-12-26T07:13:44+03:00", "utc": "1933-12-26T04:13:44Z", "ms": -1136576776365.768 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-12-27", "window": { "start": { "local": "1933-12-27T07:14:06+03:00", "utc": "1933-12-27T04:14:06Z", "ms": -1136490354131.22 }, "end": { "local": "1933-12-27T07:14:06+03:00", "utc": "1933-12-27T04:14:06Z", "ms": -1136490354131.22 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:50 on Tue 26 Dec to 14:28 on Wed 27 Dec.", "fact": "1933-12-26T09:50:17Z → 1933-12-27T11:28:15Z" }, { "step": "kaala", "text": "Sunrise is at 07:14 on the 26th and 07:14 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 20193 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Erbil, 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 Erbil, Putradā Ekādaśī 1933 falls on Wednesday 27 December. Ekādaśī runs from 12:50 on Tue 26 Dec to 14:28 on Wed 27 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/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": "/erbil/festivals/1933/pradosha-vrata?on=1933-12-28", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 1933, "local_date": "1933-12-28", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 237, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-12-28T16:29:25+03:00", "utc": "1933-12-28T13:29:25Z", "ms": -1136370634655.8752 }, "end": { "local": "1933-12-29T18:47:38+03:00", "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": "1933-12-28T16:29:25+03:00", "utc": "1933-12-28T13:29:25Z", "ms": -1136370634655.8752 }, "end": { "local": "1933-12-29T18:47:38+03:00", "utc": "1933-12-29T15:47:38Z", "ms": -1136275942009.5378 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-12-28", "window": { "start": { "local": "1933-12-28T16:56:31+03:00", "utc": "1933-12-28T13:56:31Z", "ms": -1136369008543.72 }, "end": { "local": "1933-12-28T18:50:57+03:00", "utc": "1933-12-28T15:50:57Z", "ms": -1136362142762.3228 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "1933-12-29", "window": { "start": { "local": "1933-12-29T16:57:12+03:00", "utc": "1933-12-29T13:57:12Z", "ms": -1136282567783.145 }, "end": { "local": "1933-12-29T18:51:35+03:00", "utc": "1933-12-29T15:51:35Z", "ms": -1136275705213.5437 } }, "covered_min": 110, "window_min": 114, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:29 on Thu 28 Dec to 18:48 on Fri 29 Dec.", "fact": "1933-12-28T13:29:25Z → 1933-12-29T15:47:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:57–18:51 on the 28th, 16:57–18:52 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 114 of 114 minutes on the 28th and 110 of 114 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 237 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 1933: Thursday 28 December.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-12-28", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-28", "confidence": "boundary" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 1933 falls on Thursday 28 December. Trayodaśī runs from 16:29 on Thu 28 Dec to 18:48 on Fri 29 Dec and covers all of pradoṣa that evening. It also reaches the next evening for 110 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 3 min 57 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/1933/pradosha-vrata?on=1933-12-28", "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" } }