{ "id": "/erbil/festivals/2001", "place": { "id": "95446", "slug": "erbil", "name": "Erbil", "region": "Iraq", "country": "IQ", "lat": 36.19117, "lon": 44.00943, "elevation_m": 429, "tz": "Asia/Baghdad" }, "year": 2001, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/erbil/festivals/2001/ekadashi?on=2001-01-06", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15180, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-01-05T13:03:58+03:00", "utc": "2001-01-05T10:03:58Z", "ms": 978689038407.3928 }, "end": { "local": "2001-01-06T11:28:53+03:00", "utc": "2001-01-06T08:28:53Z", "ms": 978769733393.5994 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-01-05T13:03:58+03:00", "utc": "2001-01-05T10:03:58Z", "ms": 978689038407.3928 }, "end": { "local": "2001-01-06T11:28:53+03:00", "utc": "2001-01-06T08:28:53Z", "ms": 978769733393.5994 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-01-05", "window": { "start": { "local": "2001-01-05T07:15:52+03:00", "utc": "2001-01-05T04:15:52Z", "ms": 978668151832.9401 }, "end": { "local": "2001-01-05T07:15:52+03:00", "utc": "2001-01-05T04:15:52Z", "ms": 978668151832.9401 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-01-06", "window": { "start": { "local": "2001-01-06T07:15:54+03:00", "utc": "2001-01-06T04:15:54Z", "ms": 978754553526.5992 }, "end": { "local": "2001-01-06T07:15:54+03:00", "utc": "2001-01-06T04:15:54Z", "ms": 978754553526.5992 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:04 on Fri 5 Jan to 11:29 on Sat 6 Jan.", "fact": "2001-01-05T10:03:58Z → 2001-01-06T08:28:53Z" }, { "step": "kaala", "text": "Sunrise is at 07:16 on the 5th and 07:16 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 15180 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Erbil, 2001: Saturday 6 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": "2001-01-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-06", "confidence": "determinate" } ], "quote": "In Erbil, Putradā Ekādaśī 2001 falls on Saturday 6 January. Ekādaśī runs from 13:04 on Fri 5 Jan to 11:29 on Sat 6 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-01-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-01-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28398, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-01-07T09:11:32+03:00", "utc": "2001-01-07T06:11:32Z", "ms": 978847891996.9385 }, "end": { "local": "2001-01-08T06:19:04+03:00", "utc": "2001-01-08T03:19:04Z", "ms": 978923944367.94 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-01-07T09:11:32+03:00", "utc": "2001-01-07T06:11:32Z", "ms": 978847891996.9385 }, "end": { "local": "2001-01-08T06:19:04+03:00", "utc": "2001-01-08T03:19:04Z", "ms": 978923944367.94 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-01-07", "window": { "start": { "local": "2001-01-07T17:04:50+03:00", "utc": "2001-01-07T14:04:50Z", "ms": 978876289727.1409 }, "end": { "local": "2001-01-07T18:58:18+03:00", "utc": "2001-01-07T15:58:18Z", "ms": 978883097886.4429 } }, "covered_min": 113, "window_min": 113, "qualifies": true }, { "local_date": "2001-01-08", "window": { "start": { "local": "2001-01-08T17:05:44+03:00", "utc": "2001-01-08T14:05:44Z", "ms": 978962743505.9381 }, "end": { "local": "2001-01-08T18:59:04+03:00", "utc": "2001-01-08T15:59:04Z", "ms": 978969543922.2126 } }, "covered_min": 0, "window_min": 113, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:12 on Sun 7 Jan to 06:19 on Mon 8 Jan.", "fact": "2001-01-07T06:11:32Z → 2001-01-08T03:19:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:05–18:58 on the 7th, 17:06–18:59 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 113 of 113 minutes on the 7th and 0 of 113 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 28398 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Sunday 7 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": "2001-01-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-07", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Sunday 7 January. Trayodaśī runs from 09:12 on Sun 7 Jan to 06:19 on Mon 8 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-01-07", "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/2001/sankashta-chaturthi?on=2001-01-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27884, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-01-12T12:36:20+03:00", "utc": "2001-01-12T09:36:20Z", "ms": 979292180011.2932 }, "end": { "local": "2001-01-13T09:32:46+03:00", "utc": "2001-01-13T06:32:46Z", "ms": 979367566176.075 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-12T12:36:20+03:00", "utc": "2001-01-12T09:36:20Z", "ms": 979292180011.2932 }, "end": { "local": "2001-01-13T09:32:46+03:00", "utc": "2001-01-13T06:32:46Z", "ms": 979367566176.075 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-01-12", "window": { "start": { "local": "2001-01-12T20:21:04+03:00", "utc": "2001-01-12T17:21:04Z", "ms": 979320064132.0677 }, "end": { "local": "2001-01-12T20:21:04+03:00", "utc": "2001-01-12T17:21:04Z", "ms": 979320064132.0677 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-01-13", "window": { "start": { "local": "2001-01-13T21:31:30+03:00", "utc": "2001-01-13T18:31:30Z", "ms": 979410690478.3076 }, "end": { "local": "2001-01-13T21:31:30+03:00", "utc": "2001-01-13T18:31:30Z", "ms": 979410690478.3076 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:36 on Fri 12 Jan to 09:33 on Sat 13 Jan.", "fact": "2001-01-12T09:36:20Z → 2001-01-13T06:32:46Z" }, { "step": "kaala", "text": "Moonrise is at 20:21 on the 12th and 21:32 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 27884 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Friday 12 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": "2001-01-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-12", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Friday 12 January. Caturthī runs from 12:36 on Fri 12 Jan to 09:33 on Sat 13 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-01-12", "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/2001/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34388, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 }, "end": { "local": "2001-02-12T15:43:53+03:00", "utc": "2001-02-12T12:43:53Z", "ms": 981981833411.6989 } }, "span": { "of": "transit", "start": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 }, "end": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 } }, "kaala": "sunset-day", "days": [ { "local_date": "2001-01-13", "window": { "start": { "local": "2001-01-12T17:09:27+03:00", "utc": "2001-01-12T14:09:27Z", "ms": 979308567400.3107 }, "end": { "local": "2001-01-13T17:10:25+03:00", "utc": "2001-01-13T14:10:25Z", "ms": 979395025350.38 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "2001-01-14", "window": { "start": { "local": "2001-01-13T17:10:25+03:00", "utc": "2001-01-13T14:10:25Z", "ms": 979395025350.38 }, "end": { "local": "2001-01-14T17:11:24+03:00", "utc": "2001-01-14T14:11:24Z", "ms": 979481484003.5333 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2001-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 02:44 on Sun 14 Jan.", "fact": "2001-01-13T23:43:33Z · 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 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 34388 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Sunday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Erbil, 2001: Saturday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2001-01-13", "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": "2001-01-12", "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 2001 falls on Saturday 13 January. It is kept the day before Pongal, which falls on Sunday 14 January. The Sun enters Makara at 02:44 on Sun 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34388, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 }, "end": { "local": "2001-02-12T15:43:53+03:00", "utc": "2001-02-12T12:43:53Z", "ms": 981981833411.6989 } }, "span": { "of": "transit", "start": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 }, "end": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 } }, "kaala": "sunset-day", "days": [ { "local_date": "2001-01-13", "window": { "start": { "local": "2001-01-12T17:09:27+03:00", "utc": "2001-01-12T14:09:27Z", "ms": 979308567400.3107 }, "end": { "local": "2001-01-13T17:10:25+03:00", "utc": "2001-01-13T14:10:25Z", "ms": 979395025350.38 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "2001-01-14", "window": { "start": { "local": "2001-01-13T17:10:25+03:00", "utc": "2001-01-13T14:10:25Z", "ms": 979395025350.38 }, "end": { "local": "2001-01-14T17:11:24+03:00", "utc": "2001-01-14T14:11:24Z", "ms": 979481484003.5333 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 02:44 on Sun 14 Jan.", "fact": "2001-01-13T23:43:33Z · 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 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 34388 s" }, { "step": "ruling", "text": "Pongal, Erbil, 2001: Sunday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2001-01-14", "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": "2001-01-13", "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 (Tai Pongal) 2001 falls on Sunday 14 January. The Sun enters Makara at 02:44 on Sun 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9813, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 }, "end": { "local": "2001-02-12T15:43:53+03:00", "utc": "2001-02-12T12:43:53Z", "ms": 981981833411.6989 } }, "span": { "of": "transit", "start": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 }, "end": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 } }, "kaala": "civil-day", "days": [ { "local_date": "2001-01-13", "window": { "start": { "local": "2001-01-13T00:00:00+03:00", "utc": "2001-01-12T21:00:00Z", "ms": 979333200000 }, "end": { "local": "2001-01-14T00:00:00+03:00", "utc": "2001-01-13T21:00:00Z", "ms": 979419600000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "2001-01-14", "window": { "start": { "local": "2001-01-14T00:00:00+03:00", "utc": "2001-01-13T21:00:00Z", "ms": 979419600000 }, "end": { "local": "2001-01-15T00:00:00+03:00", "utc": "2001-01-14T21:00:00Z", "ms": 979506000000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 02:44 on Sun 14 Jan.", "fact": "2001-01-13T23:43:33Z · 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 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 9813 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Erbil, 2001: Sunday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2001-01-13", "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": "2001-01-14", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Erbil, Makara Saṅkrānti 2001 falls on Sunday 14 January. The Sun enters Makara at 02:44 on Sun 14 Jan, and the rule counts the day from midnight. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34388, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 }, "end": { "local": "2001-02-12T15:43:53+03:00", "utc": "2001-02-12T12:43:53Z", "ms": 981981833411.6989 } }, "span": { "of": "transit", "start": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 }, "end": { "local": "2001-01-14T02:43:33+03:00", "utc": "2001-01-13T23:43:33Z", "ms": 979429412965.2297 } }, "kaala": "sunset-day", "days": [ { "local_date": "2001-01-13", "window": { "start": { "local": "2001-01-12T17:09:27+03:00", "utc": "2001-01-12T14:09:27Z", "ms": 979308567400.3107 }, "end": { "local": "2001-01-13T17:10:25+03:00", "utc": "2001-01-13T14:10:25Z", "ms": 979395025350.38 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "2001-01-14", "window": { "start": { "local": "2001-01-13T17:10:25+03:00", "utc": "2001-01-13T14:10:25Z", "ms": 979395025350.38 }, "end": { "local": "2001-01-14T17:11:24+03:00", "utc": "2001-01-14T14:11:24Z", "ms": 979481484003.5333 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2001-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 02:44 on Sun 14 Jan.", "fact": "2001-01-13T23:43:33Z · 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 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 34388 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Sunday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Erbil, 2001: Monday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2001-01-15", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2001-01-14", "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 2001 falls on Monday 15 January. It is kept the day after Pongal, which falls on Sunday 14 January. The Sun enters Makara at 02:44 on Sun 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-01-19", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3199, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-01-19T04:44:25+03:00", "utc": "2001-01-19T01:44:25Z", "ms": 979868665329.672 }, "end": { "local": "2001-01-20T06:19:31+03:00", "utc": "2001-01-20T03:19:31Z", "ms": 979960771389.9299 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-19T04:44:25+03:00", "utc": "2001-01-19T01:44:25Z", "ms": 979868665329.672 }, "end": { "local": "2001-01-20T06:19:31+03:00", "utc": "2001-01-20T03:19:31Z", "ms": 979960771389.9299 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-01-19", "window": { "start": { "local": "2001-01-19T07:13:16+03:00", "utc": "2001-01-19T04:13:16Z", "ms": 979877595948.8708 }, "end": { "local": "2001-01-19T07:13:16+03:00", "utc": "2001-01-19T04:13:16Z", "ms": 979877595948.8708 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-01-20", "window": { "start": { "local": "2001-01-20T07:12:50+03:00", "utc": "2001-01-20T04:12:50Z", "ms": 979963970351.8596 }, "end": { "local": "2001-01-20T07:12:50+03:00", "utc": "2001-01-20T04:12:50Z", "ms": 979963970351.8596 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:44 on Fri 19 Jan to 06:20 on Sat 20 Jan.", "fact": "2001-01-19T01:44:25Z → 2001-01-20T03:19:31Z" }, { "step": "kaala", "text": "Sunrise is at 07:13 on the 19th and 07:13 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 not 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 3199 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Erbil, 2001: Friday 19 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": "2001-01-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-19", "confidence": "determinate" } ], "quote": "In Erbil, Ṣaṭtilā Ekādaśī 2001 falls on Friday 19 January. Ekādaśī runs from 04:44 on Fri 19 Jan to 06:20 on Sat 20 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-01-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-01-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23546, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-01-21T08:23:03+03:00", "utc": "2001-01-21T05:23:03Z", "ms": 980054582788.264 }, "end": { "local": "2001-01-22T10:47:07+03:00", "utc": "2001-01-22T07:47:07Z", "ms": 980149627453.1731 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-21T08:23:03+03:00", "utc": "2001-01-21T05:23:03Z", "ms": 980054582788.264 }, "end": { "local": "2001-01-22T10:47:07+03:00", "utc": "2001-01-22T07:47:07Z", "ms": 980149627453.1731 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-01-21", "window": { "start": { "local": "2001-01-21T17:18:30+03:00", "utc": "2001-01-21T14:18:30Z", "ms": 980086710369.9325 }, "end": { "local": "2001-01-21T19:09:37+03:00", "utc": "2001-01-21T16:09:37Z", "ms": 980093377466.2167 } }, "covered_min": 111, "window_min": 111, "qualifies": true }, { "local_date": "2001-01-22", "window": { "start": { "local": "2001-01-22T17:19:33+03:00", "utc": "2001-01-22T14:19:33Z", "ms": 980173172972.0187 }, "end": { "local": "2001-01-22T19:10:28+03:00", "utc": "2001-01-22T16:10:28Z", "ms": 980179827570.7402 } }, "covered_min": 0, "window_min": 111, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:23 on Sun 21 Jan to 10:47 on Mon 22 Jan.", "fact": "2001-01-21T05:23:03Z → 2001-01-22T07:47:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:19–19:10 on the 21st, 17:20–19:10 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 111 of 111 minutes on the 21st and 0 of 111 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 23546 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Sunday 21 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-01-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-21", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Sunday 21 January. Trayodaśī runs from 08:23 on Sun 21 Jan to 10:47 on Mon 22 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-01-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/shivaratri?on=2001-01-22", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36475, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-01-22T10:47:07+03:00", "utc": "2001-01-22T07:47:07Z", "ms": 980149627453.1731 }, "end": { "local": "2001-01-23T13:24:04+03:00", "utc": "2001-01-23T10:24:04Z", "ms": 980245444359.8457 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-22T10:47:07+03:00", "utc": "2001-01-22T07:47:07Z", "ms": 980149627453.1731 }, "end": { "local": "2001-01-23T13:24:04+03:00", "utc": "2001-01-23T10:24:04Z", "ms": 980245444359.8457 } }, "kaala": "nishita", "days": [ { "local_date": "2001-01-21", "window": { "start": { "local": "2001-01-21T23:51:12+03:00", "utc": "2001-01-21T20:51:12Z", "ms": 980110271980.9982 }, "end": { "local": "2001-01-22T00:39:12+03:00", "utc": "2001-01-21T21:39:12Z", "ms": 980113151980.9982 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-01-22", "window": { "start": { "local": "2001-01-22T23:51:28+03:00", "utc": "2001-01-22T20:51:28Z", "ms": 980196687717.2247 }, "end": { "local": "2001-01-23T00:39:28+03:00", "utc": "2001-01-22T21:39:28Z", "ms": 980199567717.2247 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:47 on Mon 22 Jan to 13:24 on Tue 23 Jan.", "fact": "2001-01-22T07:47:07Z → 2001-01-23T10:24:04Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:51–00:39 on the 21st, 23:51–00:39 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 36475 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Monday 22 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": "2001-01-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-22", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Monday 22 January. Caturdaśī runs from 10:47 on Mon 22 Jan to 13:24 on Tue 23 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-01-22", "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/2001/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12914, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-01-22T10:47:07+03:00", "utc": "2001-01-22T07:47:07Z", "ms": 980149627453.1731 }, "end": { "local": "2001-01-23T13:24:04+03:00", "utc": "2001-01-23T10:24:04Z", "ms": 980245444359.8457 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-22T10:47:07+03:00", "utc": "2001-01-22T07:47:07Z", "ms": 980149627453.1731 }, "end": { "local": "2001-01-23T13:24:04+03:00", "utc": "2001-01-23T10:24:04Z", "ms": 980245444359.8457 } }, "kaala": "arunodaya", "days": [ { "local_date": "2001-01-22", "window": { "start": { "local": "2001-01-22T05:20:46+03:00", "utc": "2001-01-22T02:20:46Z", "ms": 980130046495.7797 }, "end": { "local": "2001-01-22T07:11:54+03:00", "utc": "2001-01-22T04:11:54Z", "ms": 980136713592.0638 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "2001-01-23", "window": { "start": { "local": "2001-01-23T05:20:28+03:00", "utc": "2001-01-23T02:20:28Z", "ms": 980216427863.7092 }, "end": { "local": "2001-01-23T07:11:22+03:00", "utc": "2001-01-23T04:11:22Z", "ms": 980223082462.4308 } }, "covered_min": 111, "window_min": 111, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:47 on Mon 22 Jan to 13:24 on Tue 23 Jan.", "fact": "2001-01-22T07:47:07Z → 2001-01-23T10:24:04Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:21–07:12 on the 22nd, 05:20–07:11 on the 23rd.", "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 22nd and 111 of 111 on the 23rd.", "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 12914 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Erbil, 2001: Tuesday 23 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-23", "confidence": "determinate" } ], "quote": "In Erbil, Yama Tarpaṇa 2001 falls on Tuesday 23 January. Caturdaśī runs from 10:47 on Mon 22 Jan to 13:24 on Tue 23 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36134, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-01-27T23:47:17+03:00", "utc": "2001-01-27T20:47:17Z", "ms": 980628437457.3647 }, "end": { "local": "2001-01-29T01:51:04+03:00", "utc": "2001-01-28T22:51:04Z", "ms": 980722264048.715 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-27T23:47:17+03:00", "utc": "2001-01-27T20:47:17Z", "ms": 980628437457.3647 }, "end": { "local": "2001-01-29T01:51:04+03:00", "utc": "2001-01-28T22:51:04Z", "ms": 980722264048.715 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-01-28", "window": { "start": { "local": "2001-01-28T11:53:07+03:00", "utc": "2001-01-28T08:53:07Z", "ms": 980671986574.269 }, "end": { "local": "2001-01-28T12:41:07+03:00", "utc": "2001-01-28T09:41:07Z", "ms": 980674866574.269 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-01-29", "window": { "start": { "local": "2001-01-29T11:53:18+03:00", "utc": "2001-01-29T08:53:18Z", "ms": 980758397595.5071 }, "end": { "local": "2001-01-29T12:41:18+03:00", "utc": "2001-01-29T09:41:18Z", "ms": 980761277595.5071 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:47 on Sat 27 Jan to 01:51 on Mon 29 Jan.", "fact": "2001-01-27T20:47:17Z → 2001-01-28T22:51:04Z" }, { "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 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 36134 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Erbil, 2001: Sunday 28 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": "2001-01-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-28", "confidence": "determinate" } ], "quote": "In Erbil, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2001 falls on Sunday 28 January. Caturthī runs from 23:47 on Sat 27 Jan to 01:51 on Mon 29 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16360, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-01-27T23:47:17+03:00", "utc": "2001-01-27T20:47:17Z", "ms": 980628437457.3647 }, "end": { "local": "2001-01-29T01:51:04+03:00", "utc": "2001-01-28T22:51:04Z", "ms": 980722264048.715 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-27T23:47:17+03:00", "utc": "2001-01-27T20:47:17Z", "ms": 980628437457.3647 }, "end": { "local": "2001-01-29T01:51:04+03:00", "utc": "2001-01-28T22:51:04Z", "ms": 980722264048.715 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-01-27", "window": { "start": { "local": "2001-01-27T17:24:49+03:00", "utc": "2001-01-27T14:24:49Z", "ms": 980605489401.1866 }, "end": { "local": "2001-01-27T19:14:37+03:00", "utc": "2001-01-27T16:14:37Z", "ms": 980612077489.8157 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "2001-01-28", "window": { "start": { "local": "2001-01-28T17:25:53+03:00", "utc": "2001-01-28T14:25:53Z", "ms": 980691953082.634 }, "end": { "local": "2001-01-28T19:15:27+03:00", "utc": "2001-01-28T16:15:27Z", "ms": 980698527122.8229 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:47 on Sat 27 Jan to 01:51 on Mon 29 Jan.", "fact": "2001-01-27T20:47:17Z → 2001-01-28T22:51:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:25–19:15 on the 27th, 17:26–19:15 on the 28th.", "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 27th and 110 of 110 on the 28th.", "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 16360 s" }, { "step": "ruling", "text": "Tila Caturthī, Erbil, 2001: Sunday 28 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": "2001-01-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-28", "confidence": "determinate" } ], "quote": "In Erbil, Tila Caturthī 2001 falls on Sunday 28 January. Caturthī runs from 23:47 on Sat 27 Jan to 01:51 on Mon 29 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30254, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2001-01-29T01:51:04+03:00", "utc": "2001-01-28T22:51:04Z", "ms": 980722264048.715 }, "end": { "local": "2001-01-30T03:29:14+03:00", "utc": "2001-01-30T00:29:14Z", "ms": 980814553839.3036 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-29T01:51:04+03:00", "utc": "2001-01-28T22:51:04Z", "ms": 980722264048.715 }, "end": { "local": "2001-01-30T03:29:14+03:00", "utc": "2001-01-30T00:29:14Z", "ms": 980814553839.3036 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-01-29", "window": { "start": { "local": "2001-01-29T11:53:18+03:00", "utc": "2001-01-29T08:53:18Z", "ms": 980758397595.5071 }, "end": { "local": "2001-01-29T12:41:18+03:00", "utc": "2001-01-29T09:41:18Z", "ms": 980761277595.5071 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-01-30", "window": { "start": { "local": "2001-01-30T11:53:28+03:00", "utc": "2001-01-30T08:53:28Z", "ms": 980844807780.7548 }, "end": { "local": "2001-01-30T12:41:28+03:00", "utc": "2001-01-30T09:41:28Z", "ms": 980847687780.7548 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:51 on Mon 29 Jan to 03:29 on Tue 30 Jan.", "fact": "2001-01-28T22:51:04Z → 2001-01-30T00:29:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 29th, 11:53–12:41 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30254 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Erbil, 2001: Monday 29 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": "2001-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-29", "confidence": "determinate" } ], "quote": "In Erbil, Śrī Pañcamī 2001 falls on Monday 29 January. Pañcamī runs from 01:51 on Mon 29 Jan to 03:29 on Tue 30 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30254, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2001-01-29T01:51:04+03:00", "utc": "2001-01-28T22:51:04Z", "ms": 980722264048.715 }, "end": { "local": "2001-01-30T03:29:14+03:00", "utc": "2001-01-30T00:29:14Z", "ms": 980814553839.3036 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-29T01:51:04+03:00", "utc": "2001-01-28T22:51:04Z", "ms": 980722264048.715 }, "end": { "local": "2001-01-30T03:29:14+03:00", "utc": "2001-01-30T00:29:14Z", "ms": 980814553839.3036 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-01-29", "window": { "start": { "local": "2001-01-29T11:53:18+03:00", "utc": "2001-01-29T08:53:18Z", "ms": 980758397595.5071 }, "end": { "local": "2001-01-29T12:41:18+03:00", "utc": "2001-01-29T09:41:18Z", "ms": 980761277595.5071 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-01-30", "window": { "start": { "local": "2001-01-30T11:53:28+03:00", "utc": "2001-01-30T08:53:28Z", "ms": 980844807780.7548 }, "end": { "local": "2001-01-30T12:41:28+03:00", "utc": "2001-01-30T09:41:28Z", "ms": 980847687780.7548 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:51 on Mon 29 Jan to 03:29 on Tue 30 Jan.", "fact": "2001-01-28T22:51:04Z → 2001-01-30T00:29:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 29th, 11:53–12:41 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30254 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Erbil, 2001: Monday 29 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": "2001-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-29", "confidence": "determinate" } ], "quote": "In Erbil, Vasanta Pañcamī (Basant Panchami) 2001 falls on Monday 29 January. Pañcamī runs from 01:51 on Mon 29 Jan to 03:29 on Tue 30 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 770, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2001-01-31T04:35:20+03:00", "utc": "2001-01-31T01:35:20Z", "ms": 980904919641.2433 }, "end": { "local": "2001-02-01T05:03:42+03:00", "utc": "2001-02-01T02:03:42Z", "ms": 980993022418.6759 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-01-31T04:35:20+03:00", "utc": "2001-01-31T01:35:20Z", "ms": 980904919641.2433 }, "end": { "local": "2001-02-01T05:03:42+03:00", "utc": "2001-02-01T02:03:42Z", "ms": 980993022418.6759 } }, "kaala": "arunodaya", "days": [ { "local_date": "2001-01-31", "window": { "start": { "local": "2001-01-31T05:17:05+03:00", "utc": "2001-01-31T02:17:05Z", "ms": 980907424743.4537 }, "end": { "local": "2001-01-31T07:06:10+03:00", "utc": "2001-01-31T04:06:10Z", "ms": 980913970005.618 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "2001-02-01", "window": { "start": { "local": "2001-02-01T05:16:33+03:00", "utc": "2001-02-01T02:16:33Z", "ms": 980993792812.7136 }, "end": { "local": "2001-02-01T07:05:23+03:00", "utc": "2001-02-01T04:05:23Z", "ms": 981000323361.2965 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 04:35 on Wed 31 Jan to 05:04 on Thu 1 Feb.", "fact": "2001-01-31T01:35:20Z → 2001-02-01T02:03:42Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:17–07:06 on the 31st, 05:17–07:05 on the 1st.", "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 31st and 0 of 109 on the 1st.", "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 770 s" }, { "step": "ruling", "text": "Ratha Saptamī, Erbil, 2001: Wednesday 31 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-01-31", "confidence": "determinate" } ], "quote": "In Erbil, Ratha Saptamī 2001 falls on Wednesday 31 January. Saptamī runs from 04:35 on Wed 31 Jan to 05:04 on Thu 1 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-02-04", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17388, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-02-04T02:13:06+03:00", "utc": "2001-02-03T23:13:06Z", "ms": 981241986355.5376 }, "end": { "local": "2001-02-04T23:53:14+03:00", "utc": "2001-02-04T20:53:14Z", "ms": 981319993732.6774 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-02-04T02:13:06+03:00", "utc": "2001-02-03T23:13:06Z", "ms": 981241986355.5376 }, "end": { "local": "2001-02-04T23:53:14+03:00", "utc": "2001-02-04T20:53:14Z", "ms": 981319993732.6774 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-02-04", "window": { "start": { "local": "2001-02-04T07:02:54+03:00", "utc": "2001-02-04T04:02:54Z", "ms": 981259373948.9797 }, "end": { "local": "2001-02-04T07:02:54+03:00", "utc": "2001-02-04T04:02:54Z", "ms": 981259373948.9797 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-02-05", "window": { "start": { "local": "2001-02-05T07:02:01+03:00", "utc": "2001-02-05T04:02:01Z", "ms": 981345721087.9497 }, "end": { "local": "2001-02-05T07:02:01+03:00", "utc": "2001-02-05T04:02:01Z", "ms": 981345721087.9497 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:13 on Sun 4 Feb to 23:53 on Sun 4 Feb.", "fact": "2001-02-03T23:13:06Z → 2001-02-04T20:53:14Z" }, { "step": "kaala", "text": "Sunrise is at 07:03 on the 4th and 07:02 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 17388 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Erbil, 2001: Sunday 4 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": "2001-02-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-04", "confidence": "determinate" } ], "quote": "In Erbil, Jayā Ekādaśī 2001 falls on Sunday 4 February. Ekādaśī runs from 02:13 on Sun 4 Feb to 23:53 on Sun 4 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-02-04", "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/2001/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29813, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2001-02-04T23:53:14+03:00", "utc": "2001-02-04T20:53:14Z", "ms": 981319993732.6774 }, "end": { "local": "2001-02-05T20:59:04+03:00", "utc": "2001-02-05T17:59:04Z", "ms": 981395944442.0186 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-02-04T23:53:14+03:00", "utc": "2001-02-04T20:53:14Z", "ms": 981319993732.6774 }, "end": { "local": "2001-02-05T20:59:04+03:00", "utc": "2001-02-05T17:59:04Z", "ms": 981395944442.0186 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-02-04", "window": { "start": { "local": "2001-02-04T11:54:06+03:00", "utc": "2001-02-04T08:54:06Z", "ms": 981276846094.3301 }, "end": { "local": "2001-02-04T12:42:06+03:00", "utc": "2001-02-04T09:42:06Z", "ms": 981279726094.3301 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-02-05", "window": { "start": { "local": "2001-02-05T11:54:11+03:00", "utc": "2001-02-05T08:54:11Z", "ms": 981363251244.324 }, "end": { "local": "2001-02-05T12:42:11+03:00", "utc": "2001-02-05T09:42:11Z", "ms": 981366131244.324 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 23:53 on Sun 4 Feb to 20:59 on Mon 5 Feb.", "fact": "2001-02-04T20:53:14Z → 2001-02-05T17:59:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 4th, 11:54–12:42 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 29813 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Erbil, 2001: Monday 5 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": "2001-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-05", "confidence": "determinate" } ], "quote": "In Erbil, Bhīṣma Dvādaśī 2001 falls on Monday 5 February. Dvādaśī runs from 23:53 on Sun 4 Feb to 20:59 on Mon 5 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/pradosha-vrata?on=2001-02-06", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-06", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 158, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-02-05T20:59:04+03:00", "utc": "2001-02-05T17:59:04Z", "ms": 981395944442.0186 }, "end": { "local": "2001-02-06T17:38:02+03:00", "utc": "2001-02-06T14:38:02Z", "ms": 981470281886.6106 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-02-05T20:59:04+03:00", "utc": "2001-02-05T17:59:04Z", "ms": 981395944442.0186 }, "end": { "local": "2001-02-06T17:38:02+03:00", "utc": "2001-02-06T14:38:02Z", "ms": 981470281886.6106 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-02-05", "window": { "start": { "local": "2001-02-05T17:34:21+03:00", "utc": "2001-02-05T14:34:21Z", "ms": 981383661400.6982 }, "end": { "local": "2001-02-05T19:21:55+03:00", "utc": "2001-02-05T16:21:55Z", "ms": 981390115447.762 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2001-02-06", "window": { "start": { "local": "2001-02-06T17:35:24+03:00", "utc": "2001-02-06T14:35:24Z", "ms": 981470124384.8556 }, "end": { "local": "2001-02-06T19:22:43+03:00", "utc": "2001-02-06T16:22:43Z", "ms": 981476562597.6853 } }, "covered_min": 3, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:59 on Mon 5 Feb to 17:38 on Tue 6 Feb.", "fact": "2001-02-05T17:59:04Z → 2001-02-06T14:38:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:34–19:22 on the 5th, 17:35–19:23 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 108 minutes on the 5th and 3 of 107 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 158 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Tuesday 6 February.", "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": "2001-02-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-06", "confidence": "boundary" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Tuesday 6 February. Trayodaśī runs from 20:59 on Mon 5 Feb to 17:38 on Tue 6 Feb and covers 3 of 107 minutes of pradoṣa that evening. It is 2 min 38 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-02-06", "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/2001/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4597, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-02-07T13:58:56+03:00", "utc": "2001-02-07T10:58:56Z", "ms": 981543536156.561 }, "end": { "local": "2001-02-08T10:11:39+03:00", "utc": "2001-02-08T07:11:39Z", "ms": 981616299369.1421 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2001-02-07T13:58:56+03:00", "utc": "2001-02-07T10:58:56Z", "ms": 981543536156.561 }, "end": { "local": "2001-02-08T10:11:39+03:00", "utc": "2001-02-08T07:11:39Z", "ms": 981616299369.1421 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-02-07", "window": { "start": { "local": "2001-02-07T11:54:19+03:00", "utc": "2001-02-07T08:54:19Z", "ms": 981536059078.6797 }, "end": { "local": "2001-02-07T12:42:19+03:00", "utc": "2001-02-07T09:42:19Z", "ms": 981538939078.6797 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-02-08", "window": { "start": { "local": "2001-02-08T11:54:22+03:00", "utc": "2001-02-08T08:54:22Z", "ms": 981622461783.8418 }, "end": { "local": "2001-02-08T12:42:22+03:00", "utc": "2001-02-08T09:42:22Z", "ms": 981625341783.8418 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:59 on Wed 7 Feb to 10:12 on Thu 8 Feb.", "fact": "2001-02-07T10:58:56Z → 2001-02-08T07:11:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 7th, 11:54–12:42 on the 8th.", "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 7th and 0 of 48 on the 8th.", "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: paraviddha → second-day · margin 4597 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Erbil, 2001: Thursday 8 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": "2001-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-08", "confidence": "determinate" } ], "quote": "In Erbil, Māghī Pūrṇimā 2001 falls on Thursday 8 February. Pūrṇimā runs from 13:59 on Wed 7 Feb to 10:12 on Thu 8 Feb, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-02-10", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-10", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 846, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-02-10T23:47:04+03:00", "utc": "2001-02-10T20:47:04Z", "ms": 981838024262.43 }, "end": { "local": "2001-02-11T21:13:06+03:00", "utc": "2001-02-11T18:13:06Z", "ms": 981915186132.9928 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-02-10T23:47:04+03:00", "utc": "2001-02-10T20:47:04Z", "ms": 981838024262.43 }, "end": { "local": "2001-02-11T21:13:06+03:00", "utc": "2001-02-11T18:13:06Z", "ms": 981915186132.9928 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-02-10", "window": { "start": { "local": "2001-02-10T20:18:31+03:00", "utc": "2001-02-10T17:18:31Z", "ms": 981825510991.4004 }, "end": { "local": "2001-02-10T20:18:31+03:00", "utc": "2001-02-10T17:18:31Z", "ms": 981825510991.4004 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-02-11", "window": { "start": { "local": "2001-02-11T21:27:12+03:00", "utc": "2001-02-11T18:27:12Z", "ms": 981916032489.4934 }, "end": { "local": "2001-02-11T21:27:12+03:00", "utc": "2001-02-11T18:27:12Z", "ms": 981916032489.4934 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:47 on Sat 10 Feb to 21:13 on Sun 11 Feb.", "fact": "2001-02-10T20:47:04Z → 2001-02-11T18:13:06Z" }, { "step": "kaala", "text": "Moonrise is at 20:19 on the 10th and 21:27 on the 11th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 10th and is not on the 11th.", "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 846 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Saturday 10 February.", "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": "2001-02-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-10", "confidence": "boundary" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Saturday 10 February. Caturthī runs from 23:47 on Sat 10 Feb to 21:13 on Sun 11 Feb, and is current at moonrise on neither day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-02-10", "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/2001/ekadashi?on=2001-02-18", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21335, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-02-17T22:21:56+03:00", "utc": "2001-02-17T19:21:56Z", "ms": 982437716291.536 }, "end": { "local": "2001-02-19T00:51:47+03:00", "utc": "2001-02-18T21:51:47Z", "ms": 982533107435.1941 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-02-17T22:21:56+03:00", "utc": "2001-02-17T19:21:56Z", "ms": 982437716291.536 }, "end": { "local": "2001-02-19T00:51:47+03:00", "utc": "2001-02-18T21:51:47Z", "ms": 982533107435.1941 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-02-18", "window": { "start": { "local": "2001-02-18T06:48:33+03:00", "utc": "2001-02-18T03:48:33Z", "ms": 982468112529.9912 }, "end": { "local": "2001-02-18T06:48:33+03:00", "utc": "2001-02-18T03:48:33Z", "ms": 982468112529.9912 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-02-19", "window": { "start": { "local": "2001-02-19T06:47:22+03:00", "utc": "2001-02-19T03:47:22Z", "ms": 982554442174.8506 }, "end": { "local": "2001-02-19T06:47:22+03:00", "utc": "2001-02-19T03:47:22Z", "ms": 982554442174.8506 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:22 on Sat 17 Feb to 00:52 on Mon 19 Feb.", "fact": "2001-02-17T19:21:56Z → 2001-02-18T21:51:47Z" }, { "step": "kaala", "text": "Sunrise is at 06:49 on the 18th and 06:47 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 21335 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Erbil, 2001: Sunday 18 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": "2001-02-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-18", "confidence": "determinate" } ], "quote": "In Erbil, Vijayā Ekādaśī 2001 falls on Sunday 18 February. Ekādaśī runs from 22:22 on Sat 17 Feb to 00:52 on Mon 19 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-02-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-02-20", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28946, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-02-20T03:34:48+03:00", "utc": "2001-02-20T00:34:48Z", "ms": 982629287656.9402 }, "end": { "local": "2001-02-21T06:19:39+03:00", "utc": "2001-02-21T03:19:39Z", "ms": 982725578731.387 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-02-20T03:34:48+03:00", "utc": "2001-02-20T00:34:48Z", "ms": 982629287656.9402 }, "end": { "local": "2001-02-21T06:19:39+03:00", "utc": "2001-02-21T03:19:39Z", "ms": 982725578731.387 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-02-19", "window": { "start": { "local": "2001-02-19T17:48:42+03:00", "utc": "2001-02-19T14:48:42Z", "ms": 982594121929.3539 }, "end": { "local": "2001-02-19T19:32:22+03:00", "utc": "2001-02-19T16:32:22Z", "ms": 982600341780.4769 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2001-02-20", "window": { "start": { "local": "2001-02-20T17:49:41+03:00", "utc": "2001-02-20T14:49:41Z", "ms": 982680581321.046 }, "end": { "local": "2001-02-20T19:33:04+03:00", "utc": "2001-02-20T16:33:04Z", "ms": 982686783608.1013 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:35 on Tue 20 Feb to 06:20 on Wed 21 Feb.", "fact": "2001-02-20T00:34:48Z → 2001-02-21T03:19:39Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:49–19:32 on the 19th, 17:50–19:33 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 104 minutes on the 19th and 103 of 103 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 28946 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Tuesday 20 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-02-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-20", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Tuesday 20 February. Trayodaśī runs from 03:35 on Tue 20 Feb to 06:20 on Wed 21 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-02-20", "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/2001/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20299, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-02-21T06:19:39+03:00", "utc": "2001-02-21T03:19:39Z", "ms": 982725578731.387 }, "end": { "local": "2001-02-22T08:57:15+03:00", "utc": "2001-02-22T05:57:15Z", "ms": 982821434914.5656 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-02-21T06:19:39+03:00", "utc": "2001-02-21T03:19:39Z", "ms": 982725578731.387 }, "end": { "local": "2001-02-22T08:57:15+03:00", "utc": "2001-02-22T05:57:15Z", "ms": 982821434914.5656 } }, "kaala": "nishita", "days": [ { "local_date": "2001-02-20", "window": { "start": { "local": "2001-02-20T23:53:20+03:00", "utc": "2001-02-20T20:53:20Z", "ms": 982702399897.5037 }, "end": { "local": "2001-02-21T00:41:20+03:00", "utc": "2001-02-20T21:41:20Z", "ms": 982705279897.5037 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-02-21", "window": { "start": { "local": "2001-02-21T23:53:13+03:00", "utc": "2001-02-21T20:53:13Z", "ms": 982788792790.4254 }, "end": { "local": "2001-02-22T00:41:13+03:00", "utc": "2001-02-21T21:41:13Z", "ms": 982791672790.4254 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:20 on Wed 21 Feb to 08:57 on Thu 22 Feb.", "fact": "2001-02-21T03:19:39Z → 2001-02-22T05:57:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:53–00:41 on the 20th, 23:53–00:41 on the 21st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 20299 s" }, { "step": "ruling", "text": "Mahāśivarātri, Erbil, 2001: Wednesday 21 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": "2001-02-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-21", "confidence": "determinate" } ], "quote": "In Erbil, Mahāśivarātri (Shivratri) 2001 falls on Wednesday 21 February. Caturdaśī runs from 06:20 on Wed 21 Feb to 08:57 on Thu 22 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-02-27", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-02-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13997, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-02-26T16:34:24+03:00", "utc": "2001-02-26T13:34:24Z", "ms": 983194464110.1261 }, "end": { "local": "2001-02-27T17:31:59+03:00", "utc": "2001-02-27T14:31:59Z", "ms": 983284319369.0254 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-02-26T16:34:24+03:00", "utc": "2001-02-26T13:34:24Z", "ms": 983194464110.1261 }, "end": { "local": "2001-02-27T17:31:59+03:00", "utc": "2001-02-27T14:31:59Z", "ms": 983284319369.0254 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-02-26", "window": { "start": { "local": "2001-02-26T11:53:07+03:00", "utc": "2001-02-26T08:53:07Z", "ms": 983177586973.3779 }, "end": { "local": "2001-02-26T12:41:07+03:00", "utc": "2001-02-26T09:41:07Z", "ms": 983180466973.3779 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-02-27", "window": { "start": { "local": "2001-02-27T11:52:57+03:00", "utc": "2001-02-27T08:52:57Z", "ms": 983263976715.6294 }, "end": { "local": "2001-02-27T12:40:57+03:00", "utc": "2001-02-27T09:40:57Z", "ms": 983266856715.6294 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:34 on Mon 26 Feb to 17:32 on Tue 27 Feb.", "fact": "2001-02-26T13:34:24Z → 2001-02-27T14:31:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 26th, 11:53–12:41 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13997 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Tuesday 27 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": "2001-02-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-02-27", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Tuesday 27 February. Caturthī runs from 16:34 on Mon 26 Feb to 17:32 on Tue 27 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-02-27", "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/2001/ekadashi?on=2001-03-06", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12148, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-03-05T12:33:01+03:00", "utc": "2001-03-05T09:33:01Z", "ms": 983784780828.508 }, "end": { "local": "2001-03-06T09:50:30+03:00", "utc": "2001-03-06T06:50:30Z", "ms": 983861430460.534 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-03-05T12:33:01+03:00", "utc": "2001-03-05T09:33:01Z", "ms": 983784780828.508 }, "end": { "local": "2001-03-06T09:50:30+03:00", "utc": "2001-03-06T06:50:30Z", "ms": 983861430460.534 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-03-05", "window": { "start": { "local": "2001-03-05T06:29:25+03:00", "utc": "2001-03-05T03:29:25Z", "ms": 983762965056.1946 }, "end": { "local": "2001-03-05T06:29:25+03:00", "utc": "2001-03-05T03:29:25Z", "ms": 983762965056.1946 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-03-06", "window": { "start": { "local": "2001-03-06T06:28:03+03:00", "utc": "2001-03-06T03:28:03Z", "ms": 983849282745.427 }, "end": { "local": "2001-03-06T06:28:03+03:00", "utc": "2001-03-06T03:28:03Z", "ms": 983849282745.427 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:33 on Mon 5 Mar to 09:51 on Tue 6 Mar.", "fact": "2001-03-05T09:33:01Z → 2001-03-06T06:50:30Z" }, { "step": "kaala", "text": "Sunrise is at 06:29 on the 5th and 06:28 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 12148 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Erbil, 2001: Tuesday 6 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": "2001-03-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-06", "confidence": "determinate" } ], "quote": "In Erbil, Āmalakī Ekādaśī 2001 falls on Tuesday 6 March. Ekādaśī runs from 12:33 on Mon 5 Mar to 09:51 on Tue 6 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-03-06", "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/2001/pradosha-vrata?on=2001-03-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27514, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-03-07T06:44:08+03:00", "utc": "2001-03-07T03:44:08Z", "ms": 983936647547.4095 }, "end": { "local": "2001-03-08T03:21:18+03:00", "utc": "2001-03-08T00:21:18Z", "ms": 984010877638.1598 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-03-07T06:44:08+03:00", "utc": "2001-03-07T03:44:08Z", "ms": 983936647547.4095 }, "end": { "local": "2001-03-08T03:21:18+03:00", "utc": "2001-03-08T00:21:18Z", "ms": 984010877638.1598 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-03-06", "window": { "start": { "local": "2001-03-06T18:02:58+03:00", "utc": "2001-03-06T15:02:58Z", "ms": 983890977833.7874 }, "end": { "local": "2001-03-06T19:42:07+03:00", "utc": "2001-03-06T16:42:07Z", "ms": 983896927440.999 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "2001-03-07", "window": { "start": { "local": "2001-03-07T18:03:52+03:00", "utc": "2001-03-07T15:03:52Z", "ms": 983977432263.3313 }, "end": { "local": "2001-03-07T19:42:43+03:00", "utc": "2001-03-07T16:42:43Z", "ms": 983983363497.2435 } }, "covered_min": 99, "window_min": 99, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:44 on Wed 7 Mar to 03:21 on Thu 8 Mar.", "fact": "2001-03-07T03:44:08Z → 2001-03-08T00:21:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:03–19:42 on the 6th, 18:04–19:43 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 99 minutes on the 6th and 99 of 99 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27514 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Wednesday 7 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-03-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-07", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Wednesday 7 March. Trayodaśī runs from 06:44 on Wed 7 Mar to 03:21 on Thu 8 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-03-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8243, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-03-08T23:50:56+03:00", "utc": "2001-03-08T20:50:56Z", "ms": 984084655930.3933 }, "end": { "local": "2001-03-09T20:23:04+03:00", "utc": "2001-03-09T17:23:04Z", "ms": 984158583661.5175 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-03-08T23:50:56+03:00", "utc": "2001-03-08T20:50:56Z", "ms": 984084655930.3933 }, "end": { "local": "2001-03-09T20:23:04+03:00", "utc": "2001-03-09T17:23:04Z", "ms": 984158583661.5175 } }, "kaala": "sayahna", "days": [ { "local_date": "2001-03-08", "window": { "start": { "local": "2001-03-08T15:44:52+03:00", "utc": "2001-03-08T12:44:52Z", "ms": 984055492424.3505 }, "end": { "local": "2001-03-08T18:04:46+03:00", "utc": "2001-03-08T15:04:46Z", "ms": 984063886401.0197 } }, "covered_min": 0, "window_min": 140, "qualifies": false }, { "local_date": "2001-03-09", "window": { "start": { "local": "2001-03-09T15:45:19+03:00", "utc": "2001-03-09T12:45:19Z", "ms": 984141918743.1195 }, "end": { "local": "2001-03-09T18:05:40+03:00", "utc": "2001-03-09T15:05:40Z", "ms": 984150340261.593 } }, "covered_min": 140, "window_min": 140, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:51 on Thu 8 Mar to 20:23 on Fri 9 Mar.", "fact": "2001-03-08T20:50:56Z → 2001-03-09T17:23:04Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:45–18:05 on the 8th, 15:45–18:06 on the 9th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 140 minutes on the 8th and 140 of 140 on the 9th.", "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 8243 s" }, { "step": "ruling", "text": "Holikā Dahana, Erbil, 2001: Friday 9 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": "2001-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-09", "confidence": "determinate" } ], "quote": "In Erbil, Holikā Dahana 2001 falls on Friday 9 March. Pūrṇimā runs from 23:51 on Thu 8 Mar to 20:23 on Fri 9 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8243, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-03-08T23:50:56+03:00", "utc": "2001-03-08T20:50:56Z", "ms": 984084655930.3933 }, "end": { "local": "2001-03-09T20:23:04+03:00", "utc": "2001-03-09T17:23:04Z", "ms": 984158583661.5175 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2001-03-08T23:50:56+03:00", "utc": "2001-03-08T20:50:56Z", "ms": 984084655930.3933 }, "end": { "local": "2001-03-09T20:23:04+03:00", "utc": "2001-03-09T17:23:04Z", "ms": 984158583661.5175 } }, "kaala": "sayahna", "days": [ { "local_date": "2001-03-08", "window": { "start": { "local": "2001-03-08T15:44:52+03:00", "utc": "2001-03-08T12:44:52Z", "ms": 984055492424.3505 }, "end": { "local": "2001-03-08T18:04:46+03:00", "utc": "2001-03-08T15:04:46Z", "ms": 984063886401.0197 } }, "covered_min": 0, "window_min": 140, "qualifies": false }, { "local_date": "2001-03-09", "window": { "start": { "local": "2001-03-09T15:45:19+03:00", "utc": "2001-03-09T12:45:19Z", "ms": 984141918743.1195 }, "end": { "local": "2001-03-09T18:05:40+03:00", "utc": "2001-03-09T15:05:40Z", "ms": 984150340261.593 } }, "covered_min": 140, "window_min": 140, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2001-03-09", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:51 on Thu 8 Mar to 20:23 on Fri 9 Mar.", "fact": "2001-03-08T20:50:56Z → 2001-03-09T17:23:04Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:45–18:05 on the 8th, 15:45–18:06 on the 9th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 140 minutes on the 8th and 140 of 140 on the 9th.", "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 8243 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Friday 9 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Erbil, 2001: Saturday 10 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": "2001-03-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-10", "confidence": "determinate" } ], "quote": "In Erbil, Holī 2001 falls on Saturday 10 March. It is kept the day after Holikā Dahana, which falls on Friday 9 March. Pūrṇimā runs from 23:51 on Thu 8 Mar to 20:23 on Fri 9 Mar and covers all of sāyāhna on the 9th.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35965, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2001-03-09T20:23:04+03:00", "utc": "2001-03-09T17:23:04Z", "ms": 984158583661.5175 }, "end": { "local": "2001-03-10T17:08:22+03:00", "utc": "2001-03-10T14:08:22Z", "ms": 984233301975.9557 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-09T20:23:04+03:00", "utc": "2001-03-09T17:23:04Z", "ms": 984158583661.5175 }, "end": { "local": "2001-03-10T17:08:22+03:00", "utc": "2001-03-10T14:08:22Z", "ms": 984233301975.9557 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-03-10", "window": { "start": { "local": "2001-03-10T06:22:28+03:00", "utc": "2001-03-10T03:22:28Z", "ms": 984194548376.688 }, "end": { "local": "2001-03-10T06:22:28+03:00", "utc": "2001-03-10T03:22:28Z", "ms": 984194548376.688 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-03-11", "window": { "start": { "local": "2001-03-11T06:21:04+03:00", "utc": "2001-03-11T03:21:04Z", "ms": 984280863674.3296 }, "end": { "local": "2001-03-11T06:21:04+03:00", "utc": "2001-03-11T03:21:04Z", "ms": 984280863674.3296 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 20:23 on Fri 9 Mar to 17:08 on Sat 10 Mar.", "fact": "2001-03-09T17:23:04Z → 2001-03-10T14:08:22Z" }, { "step": "kaala", "text": "Sunrise is at 06:22 on the 10th and 06:21 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 10th and is not on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35965 s" }, { "step": "ruling", "text": "Vasantotsava, Erbil, 2001: Saturday 10 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": "2001-03-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-10", "confidence": "determinate" } ], "quote": "In Erbil, Vasantotsava 2001 falls on Saturday 10 March. Pratipadā runs from 20:23 on Fri 9 Mar to 17:08 on Sat 10 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-03-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33464, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-03-12T12:01:23+03:00", "utc": "2001-03-12T09:01:23Z", "ms": 984387682994.2626 }, "end": { "local": "2001-03-13T10:28:28+03:00", "utc": "2001-03-13T07:28:28Z", "ms": 984468507807.7572 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-12T12:01:23+03:00", "utc": "2001-03-12T09:01:23Z", "ms": 984387682994.2626 }, "end": { "local": "2001-03-13T10:28:28+03:00", "utc": "2001-03-13T07:28:28Z", "ms": 984468507807.7572 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-03-12", "window": { "start": { "local": "2001-03-12T21:19:07+03:00", "utc": "2001-03-12T18:19:07Z", "ms": 984421147098.066 }, "end": { "local": "2001-03-12T21:19:07+03:00", "utc": "2001-03-12T18:19:07Z", "ms": 984421147098.066 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-03-13", "window": { "start": { "local": "2001-03-13T22:24:14+03:00", "utc": "2001-03-13T19:24:14Z", "ms": 984511454212.5074 }, "end": { "local": "2001-03-13T22:24:14+03:00", "utc": "2001-03-13T19:24:14Z", "ms": 984511454212.5074 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:01 on Mon 12 Mar to 10:28 on Tue 13 Mar.", "fact": "2001-03-12T09:01:23Z → 2001-03-13T07:28:28Z" }, { "step": "kaala", "text": "Moonrise is at 21:19 on the 12th and 22:24 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 33464 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Monday 12 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-03-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-12", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Monday 12 March. Caturthī runs from 12:01 on Mon 12 Mar to 10:28 on Tue 13 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-03-12", "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/2001/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 392, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-03-16T10:57:05+03:00", "utc": "2001-03-16T07:57:05Z", "ms": 984729425319.0514 }, "end": { "local": "2001-03-17T12:43:08+03:00", "utc": "2001-03-17T09:43:08Z", "ms": 984822188077.0996 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-16T10:57:05+03:00", "utc": "2001-03-16T07:57:05Z", "ms": 984729425319.0514 }, "end": { "local": "2001-03-17T12:43:08+03:00", "utc": "2001-03-17T09:43:08Z", "ms": 984822188077.0996 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-03-16", "window": { "start": { "local": "2001-03-16T11:48:53+03:00", "utc": "2001-03-16T08:48:53Z", "ms": 984732532988.7637 }, "end": { "local": "2001-03-16T12:36:53+03:00", "utc": "2001-03-16T09:36:53Z", "ms": 984735412988.7637 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-03-17", "window": { "start": { "local": "2001-03-17T11:48:36+03:00", "utc": "2001-03-17T08:48:36Z", "ms": 984818915833.7388 }, "end": { "local": "2001-03-17T12:36:36+03:00", "utc": "2001-03-17T09:36:36Z", "ms": 984821795833.7388 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:57 on Fri 16 Mar to 12:43 on Sat 17 Mar.", "fact": "2001-03-16T07:57:05Z → 2001-03-17T09:43:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 16th, 11:49–12:37 on the 17th.", "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 16th and 48 of 48 on the 17th.", "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 392 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Erbil, 2001: Friday 16 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": "2001-03-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-16", "confidence": "boundary" } ], "quote": "In Erbil, Śītalāṣṭamī 2001 falls on Friday 16 March. Aṣṭamī runs from 10:57 on Fri 16 Mar to 12:43 on Sat 17 Mar 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/2001/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/2001/ekadashi?on=2001-03-20", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35051, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-03-19T17:40:28+03:00", "utc": "2001-03-19T14:40:28Z", "ms": 985012828091.617 }, "end": { "local": "2001-03-20T20:22:30+03:00", "utc": "2001-03-20T17:22:30Z", "ms": 985108949747.8032 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-19T17:40:28+03:00", "utc": "2001-03-19T14:40:28Z", "ms": 985012828091.617 }, "end": { "local": "2001-03-20T20:22:30+03:00", "utc": "2001-03-20T17:22:30Z", "ms": 985108949747.8032 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-03-20", "window": { "start": { "local": "2001-03-20T06:08:08+03:00", "utc": "2001-03-20T03:08:08Z", "ms": 985057688159.4011 }, "end": { "local": "2001-03-20T06:08:08+03:00", "utc": "2001-03-20T03:08:08Z", "ms": 985057688159.4011 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-03-21", "window": { "start": { "local": "2001-03-21T06:06:41+03:00", "utc": "2001-03-21T03:06:41Z", "ms": 985144001079.4442 }, "end": { "local": "2001-03-21T06:06:41+03:00", "utc": "2001-03-21T03:06:41Z", "ms": 985144001079.4442 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:40 on Mon 19 Mar to 20:22 on Tue 20 Mar.", "fact": "2001-03-19T14:40:28Z → 2001-03-20T17:22:30Z" }, { "step": "kaala", "text": "Sunrise is at 06:08 on the 20th and 06:07 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 35051 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Erbil, 2001: Tuesday 20 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-20", "confidence": "determinate" } ], "quote": "In Erbil, Pāpamocanī Ekādaśī 2001 falls on Tuesday 20 March. Ekādaśī runs from 17:40 on Mon 19 Mar to 20:22 on Tue 20 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-03-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-03-22", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11079, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-03-21T22:55:21+03:00", "utc": "2001-03-21T19:55:21Z", "ms": 985204521466.2108 }, "end": { "local": "2001-03-23T01:09:21+03:00", "utc": "2001-03-22T22:09:21Z", "ms": 985298961093.5729 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-21T22:55:21+03:00", "utc": "2001-03-21T19:55:21Z", "ms": 985204521466.2108 }, "end": { "local": "2001-03-23T01:09:21+03:00", "utc": "2001-03-22T22:09:21Z", "ms": 985298961093.5729 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-03-21", "window": { "start": { "local": "2001-03-21T18:16:10+03:00", "utc": "2001-03-21T15:16:10Z", "ms": 985187770258.0255 }, "end": { "local": "2001-03-21T19:50:43+03:00", "utc": "2001-03-21T16:50:43Z", "ms": 985193442746.6559 } }, "covered_min": 0, "window_min": 95, "qualifies": false }, { "local_date": "2001-03-22", "window": { "start": { "local": "2001-03-22T18:17:02+03:00", "utc": "2001-03-22T15:17:02Z", "ms": 985274221747.2876 }, "end": { "local": "2001-03-22T19:51:16+03:00", "utc": "2001-03-22T16:51:16Z", "ms": 985279875743.2528 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:55 on Wed 21 Mar to 01:09 on Fri 23 Mar.", "fact": "2001-03-21T19:55:21Z → 2001-03-22T22:09:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–19:51 on the 21st, 18:17–19:51 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 95 minutes on the 21st and 94 of 94 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 11079 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Thursday 22 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": "2001-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-22", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Thursday 22 March. Trayodaśī runs from 22:55 on Wed 21 Mar to 01:09 on Fri 23 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-03-22", "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/2001/shivaratri?on=2001-03-23", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2097, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-03-23T01:09:21+03:00", "utc": "2001-03-22T22:09:21Z", "ms": 985298961093.5729 }, "end": { "local": "2001-03-24T02:58:41+03:00", "utc": "2001-03-23T23:58:41Z", "ms": 985391920685.2036 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-23T01:09:21+03:00", "utc": "2001-03-22T22:09:21Z", "ms": 985298961093.5729 }, "end": { "local": "2001-03-24T02:58:41+03:00", "utc": "2001-03-23T23:58:41Z", "ms": 985391920685.2036 } }, "kaala": "nishita", "days": [ { "local_date": "2001-03-22", "window": { "start": { "local": "2001-03-22T23:46:24+03:00", "utc": "2001-03-22T20:46:24Z", "ms": 985293984232.1573 }, "end": { "local": "2001-03-23T00:34:24+03:00", "utc": "2001-03-22T21:34:24Z", "ms": 985296864232.1573 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-03-23", "window": { "start": { "local": "2001-03-23T23:46:06+03:00", "utc": "2001-03-23T20:46:06Z", "ms": 985380366306.811 }, "end": { "local": "2001-03-24T00:34:06+03:00", "utc": "2001-03-23T21:34:06Z", "ms": 985383246306.811 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:09 on Fri 23 Mar to 02:59 on Sat 24 Mar.", "fact": "2001-03-22T22:09:21Z → 2001-03-23T23:58:41Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:46–00:34 on the 22nd, 23:46–00:34 on the 23rd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2097 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Friday 23 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": "2001-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-23", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Friday 23 March. Caturdaśī runs from 01:09 on Fri 23 Mar to 02:59 on Sat 24 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-03-23", "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/2001/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23368, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2001-03-25T04:21:00+03:00", "utc": "2001-03-25T01:21:00Z", "ms": 985483260137.3949 }, "end": { "local": "2001-03-26T05:16:28+03:00", "utc": "2001-03-26T02:16:28Z", "ms": 985572987792.0065 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-25T04:21:00+03:00", "utc": "2001-03-25T01:21:00Z", "ms": 985483260137.3949 }, "end": { "local": "2001-03-26T05:16:28+03:00", "utc": "2001-03-26T02:16:28Z", "ms": 985572987792.0065 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-03-25", "window": { "start": { "local": "2001-03-25T11:46:14+03:00", "utc": "2001-03-25T08:46:14Z", "ms": 985509973918.472 }, "end": { "local": "2001-03-25T12:34:14+03:00", "utc": "2001-03-25T09:34:14Z", "ms": 985512853918.472 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-03-26", "window": { "start": { "local": "2001-03-26T11:45:56+03:00", "utc": "2001-03-26T08:45:56Z", "ms": 985596355864.8862 }, "end": { "local": "2001-03-26T12:33:56+03:00", "utc": "2001-03-26T09:33:56Z", "ms": 985599235864.8862 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 04:21 on Sun 25 Mar to 05:16 on Mon 26 Mar.", "fact": "2001-03-25T01:21:00Z → 2001-03-26T02:16:28Z" }, { "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": "Pratipadā 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23368 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Erbil, 2001: Sunday 25 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": "2001-03-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-25", "confidence": "determinate" } ], "quote": "In Erbil, Navarātrārambha (Caitra) (Chaitra Navratri) 2001 falls on Sunday 25 March. Pratipadā runs from 04:21 on Sun 25 Mar to 05:16 on Mon 26 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21141, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2001-03-27T05:46:32+03:00", "utc": "2001-03-27T02:46:32Z", "ms": 985661191684.0541 }, "end": { "local": "2001-03-28T05:52:58+03:00", "utc": "2001-03-28T02:52:58Z", "ms": 985747978341.529 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-27T05:46:32+03:00", "utc": "2001-03-27T02:46:32Z", "ms": 985661191684.0541 }, "end": { "local": "2001-03-28T05:52:58+03:00", "utc": "2001-03-28T02:52:58Z", "ms": 985747978341.529 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-03-27", "window": { "start": { "local": "2001-03-27T11:45:38+03:00", "utc": "2001-03-27T08:45:38Z", "ms": 985682737798.4639 }, "end": { "local": "2001-03-27T12:33:38+03:00", "utc": "2001-03-27T09:33:38Z", "ms": 985685617798.4639 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-03-28", "window": { "start": { "local": "2001-03-28T11:45:20+03:00", "utc": "2001-03-28T08:45:20Z", "ms": 985769119735.711 }, "end": { "local": "2001-03-28T12:33:20+03:00", "utc": "2001-03-28T09:33:20Z", "ms": 985771999735.711 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:47 on Tue 27 Mar to 05:53 on Wed 28 Mar.", "fact": "2001-03-27T02:46:32Z → 2001-03-28T02:52:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 27th, 11:45–12:33 on the 28th.", "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 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21141 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Erbil, 2001: Tuesday 27 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": "2001-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-27", "confidence": "determinate" } ], "quote": "In Erbil, Gaurī Tṛtīyā (Gangaur) 2001 falls on Tuesday 27 March. Tṛtīyā runs from 05:47 on Tue 27 Mar to 05:53 on Wed 28 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21141, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2001-03-27T05:46:32+03:00", "utc": "2001-03-27T02:46:32Z", "ms": 985661191684.0541 }, "end": { "local": "2001-03-28T05:52:58+03:00", "utc": "2001-03-28T02:52:58Z", "ms": 985747978341.529 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-27T05:46:32+03:00", "utc": "2001-03-27T02:46:32Z", "ms": 985661191684.0541 }, "end": { "local": "2001-03-28T05:52:58+03:00", "utc": "2001-03-28T02:52:58Z", "ms": 985747978341.529 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-03-27", "window": { "start": { "local": "2001-03-27T11:45:38+03:00", "utc": "2001-03-27T08:45:38Z", "ms": 985682737798.4639 }, "end": { "local": "2001-03-27T12:33:38+03:00", "utc": "2001-03-27T09:33:38Z", "ms": 985685617798.4639 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-03-28", "window": { "start": { "local": "2001-03-28T11:45:20+03:00", "utc": "2001-03-28T08:45:20Z", "ms": 985769119735.711 }, "end": { "local": "2001-03-28T12:33:20+03:00", "utc": "2001-03-28T09:33:20Z", "ms": 985771999735.711 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:47 on Tue 27 Mar to 05:53 on Wed 28 Mar.", "fact": "2001-03-27T02:46:32Z → 2001-03-28T02:52:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 27th, 11:45–12:33 on the 28th.", "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 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21141 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Erbil, 2001: Tuesday 27 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": "2001-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-27", "confidence": "determinate" } ], "quote": "In Erbil, Saubhāgya Śayana Vrata 2001 falls on Tuesday 27 March. Tṛtīyā runs from 05:47 on Tue 27 Mar to 05:53 on Wed 28 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-03-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21141, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-03-28T05:52:58+03:00", "utc": "2001-03-28T02:52:58Z", "ms": 985747978341.529 }, "end": { "local": "2001-03-29T05:37:09+03:00", "utc": "2001-03-29T02:37:09Z", "ms": 985833429071.6235 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-28T05:52:58+03:00", "utc": "2001-03-28T02:52:58Z", "ms": 985747978341.529 }, "end": { "local": "2001-03-29T05:37:09+03:00", "utc": "2001-03-29T02:37:09Z", "ms": 985833429071.6235 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-03-28", "window": { "start": { "local": "2001-03-28T11:45:20+03:00", "utc": "2001-03-28T08:45:20Z", "ms": 985769119735.711 }, "end": { "local": "2001-03-28T12:33:20+03:00", "utc": "2001-03-28T09:33:20Z", "ms": 985771999735.711 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-03-29", "window": { "start": { "local": "2001-03-29T11:45:02+03:00", "utc": "2001-03-29T08:45:02Z", "ms": 985855501693.1694 }, "end": { "local": "2001-03-29T12:33:02+03:00", "utc": "2001-03-29T09:33:02Z", "ms": 985858381693.1694 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:53 on Wed 28 Mar to 05:37 on Thu 29 Mar.", "fact": "2001-03-28T02:52:58Z → 2001-03-29T02:37:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 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": "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 21141 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Wednesday 28 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-28", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Wednesday 28 March. Caturthī runs from 05:53 on Wed 28 Mar to 05:37 on Thu 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-03-28", "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/2001/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22073, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2001-03-29T05:37:09+03:00", "utc": "2001-03-29T02:37:09Z", "ms": 985833429071.6235 }, "end": { "local": "2001-03-30T04:59:39+03:00", "utc": "2001-03-30T01:59:39Z", "ms": 985917578689.7644 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-03-29T05:37:09+03:00", "utc": "2001-03-29T02:37:09Z", "ms": 985833429071.6235 }, "end": { "local": "2001-03-30T04:59:39+03:00", "utc": "2001-03-30T01:59:39Z", "ms": 985917578689.7644 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-03-29", "window": { "start": { "local": "2001-03-29T11:45:02+03:00", "utc": "2001-03-29T08:45:02Z", "ms": 985855501693.1694 }, "end": { "local": "2001-03-29T12:33:02+03:00", "utc": "2001-03-29T09:33:02Z", "ms": 985858381693.1694 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-03-30", "window": { "start": { "local": "2001-03-30T11:44:44+03:00", "utc": "2001-03-30T08:44:44Z", "ms": 985941883687.5745 }, "end": { "local": "2001-03-30T12:32:44+03:00", "utc": "2001-03-30T09:32:44Z", "ms": 985944763687.5745 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 05:37 on Thu 29 Mar to 05:00 on Fri 30 Mar.", "fact": "2001-03-29T02:37:09Z → 2001-03-30T01:59:39Z" }, { "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": "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: purvaviddha → only-day · margin 22073 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Erbil, 2001: Thursday 29 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": "2001-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-03-29", "confidence": "determinate" } ], "quote": "In Erbil, Lakṣmī Pañcamī 2001 falls on Thursday 29 March. Pañcamī runs from 05:37 on Thu 29 Mar to 05:00 on Fri 30 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32732, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-04-01T02:38:36+03:00", "utc": "2001-03-31T23:38:36Z", "ms": 986081915534.9192 }, "end": { "local": "2001-04-02T01:54:16+04:00", "utc": "2001-04-01T21:54:16Z", "ms": 986162055746.1686 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-04-01T02:38:36+03:00", "utc": "2001-03-31T23:38:36Z", "ms": 986081915534.9192 }, "end": { "local": "2001-04-02T01:54:16+04:00", "utc": "2001-04-01T21:54:16Z", "ms": 986162055746.1686 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-04-01", "window": { "start": { "local": "2001-04-01T12:44:08+04:00", "utc": "2001-04-01T08:44:08Z", "ms": 986114647856.1123 }, "end": { "local": "2001-04-01T13:32:08+04:00", "utc": "2001-04-01T09:32:08Z", "ms": 986117527856.1123 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-04-02", "window": { "start": { "local": "2001-04-02T12:43:50+04:00", "utc": "2001-04-02T08:43:50Z", "ms": 986201030066.1665 }, "end": { "local": "2001-04-02T13:31:50+04:00", "utc": "2001-04-02T09:31:50Z", "ms": 986203910066.1665 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 02:39 on Sun 1 Apr to 01:54 on Mon 2 Apr.", "fact": "2001-03-31T23:38:36Z → 2001-04-01T21:54:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:44–13:32 on the 1st, 12:44–13:32 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32732 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Erbil, 2001: Sunday 1 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": "2001-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-01", "confidence": "determinate" } ], "quote": "In Erbil, Bhavānī Utpatti 2001 falls on Sunday 1 April. Aṣṭamī runs from 02:39 on Sun 1 Apr to 01:54 on Mon 2 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36966, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2001-04-02T01:54:16+04:00", "utc": "2001-04-01T21:54:16Z", "ms": 986162055746.1686 }, "end": { "local": "2001-04-02T23:47:56+04:00", "utc": "2001-04-02T19:47:56Z", "ms": 986240875927.6324 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-04-02T01:54:16+04:00", "utc": "2001-04-01T21:54:16Z", "ms": 986162055746.1686 }, "end": { "local": "2001-04-02T23:47:56+04:00", "utc": "2001-04-02T19:47:56Z", "ms": 986240875927.6324 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-04-01", "window": { "start": { "local": "2001-04-01T12:44:08+04:00", "utc": "2001-04-01T08:44:08Z", "ms": 986114647856.1123 }, "end": { "local": "2001-04-01T13:32:08+04:00", "utc": "2001-04-01T09:32:08Z", "ms": 986117527856.1123 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-04-02", "window": { "start": { "local": "2001-04-02T12:43:50+04:00", "utc": "2001-04-02T08:43:50Z", "ms": 986201030066.1665 }, "end": { "local": "2001-04-02T13:31:50+04:00", "utc": "2001-04-02T09:31:50Z", "ms": 986203910066.1665 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 01:54 on Mon 2 Apr to 23:48 on Mon 2 Apr.", "fact": "2001-04-01T21:54:16Z → 2001-04-02T19:47:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:44–13:32 on the 1st, 12:44–13:32 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36966 s" }, { "step": "ruling", "text": "Rāma Navamī, Erbil, 2001: Monday 2 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": "2001-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-02", "confidence": "determinate" } ], "quote": "In Erbil, Rāma Navamī 2001 falls on Monday 2 April. Navamī runs from 01:54 on Mon 2 Apr to 23:48 on Mon 2 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-04-04", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33887, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-04-03T21:21:39+04:00", "utc": "2001-04-03T17:21:39Z", "ms": 986318499321.4187 }, "end": { "local": "2001-04-04T18:39:13+04:00", "utc": "2001-04-04T14:39:13Z", "ms": 986395153361.8864 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-04-03T21:21:39+04:00", "utc": "2001-04-03T17:21:39Z", "ms": 986318499321.4187 }, "end": { "local": "2001-04-04T18:39:13+04:00", "utc": "2001-04-04T14:39:13Z", "ms": 986395153361.8864 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-04-04", "window": { "start": { "local": "2001-04-04T06:46:26+04:00", "utc": "2001-04-04T02:46:26Z", "ms": 986352386324.9846 }, "end": { "local": "2001-04-04T06:46:26+04:00", "utc": "2001-04-04T02:46:26Z", "ms": 986352386324.9846 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-04-05", "window": { "start": { "local": "2001-04-05T06:45:01+04:00", "utc": "2001-04-05T02:45:01Z", "ms": 986438700984.3425 }, "end": { "local": "2001-04-05T06:45:01+04:00", "utc": "2001-04-05T02:45:01Z", "ms": 986438700984.3425 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:22 on Tue 3 Apr to 18:39 on Wed 4 Apr.", "fact": "2001-04-03T17:21:39Z → 2001-04-04T14:39:13Z" }, { "step": "kaala", "text": "Sunrise is at 06:46 on the 4th and 06:45 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 33887 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Erbil, 2001: Wednesday 4 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-04", "confidence": "determinate" } ], "quote": "In Erbil, Kāmadā Ekādaśī 2001 falls on Wednesday 4 April. Ekādaśī runs from 21:22 on Tue 3 Apr to 18:39 on Wed 4 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-04-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-04-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13361, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-04-05T15:46:13+04:00", "utc": "2001-04-05T11:46:13Z", "ms": 986471172894.3433 }, "end": { "local": "2001-04-06T12:49:50+04:00", "utc": "2001-04-06T08:49:50Z", "ms": 986546990303.2573 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-04-05T15:46:13+04:00", "utc": "2001-04-05T11:46:13Z", "ms": 986471172894.3433 }, "end": { "local": "2001-04-06T12:49:50+04:00", "utc": "2001-04-06T08:49:50Z", "ms": 986546990303.2573 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-04-05", "window": { "start": { "local": "2001-04-05T19:28:54+04:00", "utc": "2001-04-05T15:28:54Z", "ms": 986484533883.9794 }, "end": { "local": "2001-04-05T20:58:51+04:00", "utc": "2001-04-05T16:58:51Z", "ms": 986489931498.589 } }, "covered_min": 90, "window_min": 90, "qualifies": true }, { "local_date": "2001-04-06", "window": { "start": { "local": "2001-04-06T19:29:44+04:00", "utc": "2001-04-06T15:29:44Z", "ms": 986570984419.804 }, "end": { "local": "2001-04-06T20:59:24+04:00", "utc": "2001-04-06T16:59:24Z", "ms": 986576364015.1155 } }, "covered_min": 0, "window_min": 90, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:46 on Thu 5 Apr to 12:50 on Fri 6 Apr.", "fact": "2001-04-05T11:46:13Z → 2001-04-06T08:49:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:29–20:59 on the 5th, 19:30–20:59 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 90 of 90 minutes on the 5th and 0 of 90 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 13361 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Thursday 5 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-05", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Thursday 5 April. Trayodaśī runs from 15:46 on Thu 5 Apr to 12:50 on Fri 6 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-04-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 430, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-04-05T15:46:13+04:00", "utc": "2001-04-05T11:46:13Z", "ms": 986471172894.3433 }, "end": { "local": "2001-04-06T12:49:50+04:00", "utc": "2001-04-06T08:49:50Z", "ms": 986546990303.2573 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-04-05T15:46:13+04:00", "utc": "2001-04-05T11:46:13Z", "ms": 986471172894.3433 }, "end": { "local": "2001-04-06T12:49:50+04:00", "utc": "2001-04-06T08:49:50Z", "ms": 986546990303.2573 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-04-05", "window": { "start": { "local": "2001-04-05T12:42:57+04:00", "utc": "2001-04-05T08:42:57Z", "ms": 986460177434.1609 }, "end": { "local": "2001-04-05T13:30:57+04:00", "utc": "2001-04-05T09:30:57Z", "ms": 986463057434.1609 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-04-06", "window": { "start": { "local": "2001-04-06T12:42:40+04:00", "utc": "2001-04-06T08:42:40Z", "ms": 986546560206.6777 }, "end": { "local": "2001-04-06T13:30:40+04:00", "utc": "2001-04-06T09:30:40Z", "ms": 986549440206.6777 } }, "covered_min": 7, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:46 on Thu 5 Apr to 12:50 on Fri 6 Apr.", "fact": "2001-04-05T11:46:13Z → 2001-04-06T08:49:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 5th, 12:43–13:31 on the 6th.", "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 5th and 7 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 430 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Erbil, 2001: Friday 6 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": "2001-04-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-06", "confidence": "determinate" } ], "quote": "In Erbil, Anaṅga Trayodaśī 2001 falls on Friday 6 April. Trayodaśī runs from 15:46 on Thu 5 Apr to 12:50 on Fri 6 Apr and covers 7 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 430, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-04-06T12:49:50+04:00", "utc": "2001-04-06T08:49:50Z", "ms": 986546990303.2573 }, "end": { "local": "2001-04-07T09:58:36+04:00", "utc": "2001-04-07T05:58:36Z", "ms": 986623115992.9094 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-04-06T12:49:50+04:00", "utc": "2001-04-06T08:49:50Z", "ms": 986546990303.2573 }, "end": { "local": "2001-04-07T09:58:36+04:00", "utc": "2001-04-07T05:58:36Z", "ms": 986623115992.9094 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-04-06", "window": { "start": { "local": "2001-04-06T12:42:40+04:00", "utc": "2001-04-06T08:42:40Z", "ms": 986546560206.6777 }, "end": { "local": "2001-04-06T13:30:40+04:00", "utc": "2001-04-06T09:30:40Z", "ms": 986549440206.6777 } }, "covered_min": 41, "window_min": 48, "qualifies": true }, { "local_date": "2001-04-07", "window": { "start": { "local": "2001-04-07T12:42:23+04:00", "utc": "2001-04-07T08:42:23Z", "ms": 986632943174.5121 }, "end": { "local": "2001-04-07T13:30:23+04:00", "utc": "2001-04-07T09:30:23Z", "ms": 986635823174.5121 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:50 on Fri 6 Apr to 09:59 on Sat 7 Apr.", "fact": "2001-04-06T08:49:50Z → 2001-04-07T05:58:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 6th, 12:42–13:30 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 41 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": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 430 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Erbil, 2001: Friday 6 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": "2001-04-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-06", "confidence": "determinate" } ], "quote": "In Erbil, Viṣṇudamanaka Caturdaśī 2001 falls on Friday 6 April. Caturdaśī runs from 12:50 on Fri 6 Apr to 09:59 on Sat 7 Apr and covers 41 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9827, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-04-07T09:58:36+04:00", "utc": "2001-04-07T05:58:36Z", "ms": 986623115992.9094 }, "end": { "local": "2001-04-08T07:21:52+04:00", "utc": "2001-04-08T03:21:52Z", "ms": 986700111606.8807 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2001-04-07T09:58:36+04:00", "utc": "2001-04-07T05:58:36Z", "ms": 986623115992.9094 }, "end": { "local": "2001-04-08T07:21:52+04:00", "utc": "2001-04-08T03:21:52Z", "ms": 986700111606.8807 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-04-07", "window": { "start": { "local": "2001-04-07T12:42:23+04:00", "utc": "2001-04-07T08:42:23Z", "ms": 986632943174.5121 }, "end": { "local": "2001-04-07T13:30:23+04:00", "utc": "2001-04-07T09:30:23Z", "ms": 986635823174.5121 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-04-08", "window": { "start": { "local": "2001-04-08T12:42:06+04:00", "utc": "2001-04-08T08:42:06Z", "ms": 986719326360.2017 }, "end": { "local": "2001-04-08T13:30:06+04:00", "utc": "2001-04-08T09:30:06Z", "ms": 986722206360.2017 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:59 on Sat 7 Apr to 07:22 on Sun 8 Apr.", "fact": "2001-04-07T05:58:36Z → 2001-04-08T03:21:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 7th, 12:42–13:30 on the 8th.", "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 7th and 0 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9827 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Erbil, 2001: Saturday 7 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": "2001-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-07", "confidence": "determinate" } ], "quote": "In Erbil, Caitrī Pūrṇimā 2001 falls on Saturday 7 April. Pūrṇimā runs from 09:59 on Sat 7 Apr to 07:22 on Sun 8 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-04-11", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11255, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-04-11T02:32:04+04:00", "utc": "2001-04-10T22:32:04Z", "ms": 986941924381.8577 }, "end": { "local": "2001-04-12T02:20:47+04:00", "utc": "2001-04-11T22:20:47Z", "ms": 987027646691.6304 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-11T02:32:04+04:00", "utc": "2001-04-10T22:32:04Z", "ms": 986941924381.8577 }, "end": { "local": "2001-04-12T02:20:47+04:00", "utc": "2001-04-11T22:20:47Z", "ms": 987027646691.6304 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-04-10", "window": { "start": { "local": "2001-04-10T22:09:48+04:00", "utc": "2001-04-10T18:09:48Z", "ms": 986926187570.9641 }, "end": { "local": "2001-04-10T22:09:48+04:00", "utc": "2001-04-10T18:09:48Z", "ms": 986926187570.9641 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-04-11", "window": { "start": { "local": "2001-04-11T23:13:11+04:00", "utc": "2001-04-11T19:13:11Z", "ms": 987016391348.1392 }, "end": { "local": "2001-04-11T23:13:11+04:00", "utc": "2001-04-11T19:13:11Z", "ms": 987016391348.1392 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:32 on Wed 11 Apr to 02:21 on Thu 12 Apr.", "fact": "2001-04-10T22:32:04Z → 2001-04-11T22:20:47Z" }, { "step": "kaala", "text": "Moonrise is at 22:10 on the 10th and 23:13 on the 11th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 10th and is on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11255 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Wednesday 11 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": "2001-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-11", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Wednesday 11 April. Caturthī runs from 02:32 on Wed 11 Apr to 02:21 on Thu 12 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-04-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30047, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2001-04-13T22:11:45+04:00", "utc": "2001-04-13T18:11:45Z", "ms": 987185505245.0591 }, "end": { "local": "2001-05-14T19:04:25+04:00", "utc": "2001-05-14T15:04:25Z", "ms": 989852665298.1919 } }, "span": { "of": "transit", "start": { "local": "2001-04-13T22:11:45+04:00", "utc": "2001-04-13T18:11:45Z", "ms": 987185505245.0591 }, "end": { "local": "2001-04-13T22:11:45+04:00", "utc": "2001-04-13T18:11:45Z", "ms": 987185505245.0591 } }, "kaala": "day", "days": [ { "local_date": "2001-04-13", "window": { "start": { "local": "2001-04-13T06:33:54+04:00", "utc": "2001-04-13T02:33:54Z", "ms": 987129233529.464 }, "end": { "local": "2001-04-14T06:32:32+04:00", "utc": "2001-04-14T02:32:32Z", "ms": 987215552477.0652 } }, "covered_min": 1, "window_min": 1439, "qualifies": true }, { "local_date": "2001-04-14", "window": { "start": { "local": "2001-04-14T06:32:32+04:00", "utc": "2001-04-14T02:32:32Z", "ms": 987215552477.0652 }, "end": { "local": "2001-04-15T06:31:12+04:00", "utc": "2001-04-15T02:31:12Z", "ms": 987301872054.9902 } }, "covered_min": 0, "window_min": 1439, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 22:12 on Fri 13 Apr.", "fact": "2001-04-13T18:11:45Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:34 on the 13th, and from 06:33 on the 14th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 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 sunrise → only-day · margin 30047 s" }, { "step": "ruling", "text": "Vaiśākhī, Erbil, 2001: Friday 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": "2001-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2001-04-13", "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": "2001-04-14", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Erbil, Vaiśākhī (Baisakhi) 2001 falls on Friday 13 April. The Sun enters Meṣa at 22:12 on Fri 13 Apr, and the rule counts the day from sunrise. By the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 April.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-04-19", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26531, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-04-18T13:49:26+04:00", "utc": "2001-04-18T09:49:26Z", "ms": 987587365966.1614 }, "end": { "local": "2001-04-19T15:59:15+04:00", "utc": "2001-04-19T11:59:15Z", "ms": 987681554592.8326 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-18T13:49:26+04:00", "utc": "2001-04-18T09:49:26Z", "ms": 987587365966.1614 }, "end": { "local": "2001-04-19T15:59:15+04:00", "utc": "2001-04-19T11:59:15Z", "ms": 987681554592.8326 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-04-18", "window": { "start": { "local": "2001-04-18T06:27:15+04:00", "utc": "2001-04-18T02:27:15Z", "ms": 987560834863.4099 }, "end": { "local": "2001-04-18T06:27:15+04:00", "utc": "2001-04-18T02:27:15Z", "ms": 987560834863.4099 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-04-19", "window": { "start": { "local": "2001-04-19T06:25:57+04:00", "utc": "2001-04-19T02:25:57Z", "ms": 987647157253.673 }, "end": { "local": "2001-04-19T06:25:57+04:00", "utc": "2001-04-19T02:25:57Z", "ms": 987647157253.673 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:49 on Wed 18 Apr to 15:59 on Thu 19 Apr.", "fact": "2001-04-18T09:49:26Z → 2001-04-19T11:59:15Z" }, { "step": "kaala", "text": "Sunrise is at 06:27 on the 18th and 06:26 on the 19th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 18th and is on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26531 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Erbil, 2001: Thursday 19 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": "2001-04-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-19", "confidence": "determinate" } ], "quote": "In Erbil, Varūthinī Ekādaśī 2001 falls on Thursday 19 April. Ekādaśī runs from 13:49 on Wed 18 Apr to 15:59 on Thu 19 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-04-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-04-20", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3207, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-04-20T17:40:43+04:00", "utc": "2001-04-20T13:40:43Z", "ms": 987774043085.1733 }, "end": { "local": "2001-04-21T18:49:02+04:00", "utc": "2001-04-21T14:49:02Z", "ms": 987864541637.388 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-20T17:40:43+04:00", "utc": "2001-04-20T13:40:43Z", "ms": 987774043085.1733 }, "end": { "local": "2001-04-21T18:49:02+04:00", "utc": "2001-04-21T14:49:02Z", "ms": 987864541637.388 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-04-20", "window": { "start": { "local": "2001-04-20T19:41:37+04:00", "utc": "2001-04-20T15:41:37Z", "ms": 987781296940.6665 }, "end": { "local": "2001-04-20T21:07:11+04:00", "utc": "2001-04-20T17:07:11Z", "ms": 987786431266.4817 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2001-04-21", "window": { "start": { "local": "2001-04-21T19:42:28+04:00", "utc": "2001-04-21T15:42:28Z", "ms": 987867748341.4642 }, "end": { "local": "2001-04-21T21:07:46+04:00", "utc": "2001-04-21T17:07:46Z", "ms": 987872865786.5308 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:41 on Fri 20 Apr to 18:49 on Sat 21 Apr.", "fact": "2001-04-20T13:40:43Z → 2001-04-21T14:49:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:42–21:07 on the 20th, 19:42–21:08 on the 21st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 86 of 86 minutes on the 20th and 0 of 85 on the 21st.", "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 3207 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Friday 20 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": "2001-04-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-20", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Friday 20 April. Trayodaśī runs from 17:41 on Fri 20 Apr to 18:49 on Sat 21 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-04-20", "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/2001/shivaratri?on=2001-04-21", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18889, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-04-21T18:49:02+04:00", "utc": "2001-04-21T14:49:02Z", "ms": 987864541637.388 }, "end": { "local": "2001-04-22T19:23:18+04:00", "utc": "2001-04-22T15:23:18Z", "ms": 987952998322.1122 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-21T18:49:02+04:00", "utc": "2001-04-21T14:49:02Z", "ms": 987864541637.388 }, "end": { "local": "2001-04-22T19:23:18+04:00", "utc": "2001-04-22T15:23:18Z", "ms": 987952998322.1122 } }, "kaala": "nishita", "days": [ { "local_date": "2001-04-21", "window": { "start": { "local": "2001-04-22T00:38:19+04:00", "utc": "2001-04-21T20:38:19Z", "ms": 987885498760.4639 }, "end": { "local": "2001-04-22T01:26:19+04:00", "utc": "2001-04-21T21:26:19Z", "ms": 987888378760.4639 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-04-22", "window": { "start": { "local": "2001-04-23T00:38:07+04:00", "utc": "2001-04-22T20:38:07Z", "ms": 987971887313.4141 }, "end": { "local": "2001-04-23T01:26:07+04:00", "utc": "2001-04-22T21:26:07Z", "ms": 987974767313.4141 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:49 on Sat 21 Apr to 19:23 on Sun 22 Apr.", "fact": "2001-04-21T14:49:02Z → 2001-04-22T15:23:18Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:38–01:26 on the 21st, 00:38–01:26 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 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. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18889 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Saturday 21 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": "2001-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-21", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Saturday 21 April. Caturdaśī runs from 18:49 on Sat 21 Apr to 19:23 on Sun 22 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-04-21", "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/2001/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5746, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2001-04-25T18:10:09+04:00", "utc": "2001-04-25T14:10:09Z", "ms": 988207808634.6005 }, "end": { "local": "2001-04-26T17:01:07+04:00", "utc": "2001-04-26T13:01:07Z", "ms": 988290067295.8771 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-25T18:10:09+04:00", "utc": "2001-04-25T14:10:09Z", "ms": 988207808634.6005 }, "end": { "local": "2001-04-26T17:01:07+04:00", "utc": "2001-04-26T13:01:07Z", "ms": 988290067295.8771 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-04-25", "window": { "start": { "local": "2001-04-25T19:45:54+04:00", "utc": "2001-04-25T15:45:54Z", "ms": 988213554393.99 }, "end": { "local": "2001-04-25T21:10:05+04:00", "utc": "2001-04-25T17:10:05Z", "ms": 988218605431.8505 } }, "covered_min": 84, "window_min": 84, "qualifies": true }, { "local_date": "2001-04-26", "window": { "start": { "local": "2001-04-26T19:46:46+04:00", "utc": "2001-04-26T15:46:46Z", "ms": 988300005965.9869 }, "end": { "local": "2001-04-26T21:10:41+04:00", "utc": "2001-04-26T17:10:41Z", "ms": 988305040705.3784 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 18:10 on Wed 25 Apr to 17:01 on Thu 26 Apr.", "fact": "2001-04-25T14:10:09Z → 2001-04-26T13:01:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:46–21:10 on the 25th, 19:47–21:11 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 84 of 84 minutes on the 25th and 0 of 84 on the 26th.", "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 5746 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Erbil, 2001: Wednesday 25 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": "2001-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-25", "confidence": "determinate" } ], "quote": "In Erbil, Paraśurāma Jayantī 2001 falls on Wednesday 25 April. Tṛtīyā runs from 18:10 on Wed 25 Apr to 17:01 on Thu 26 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22441, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2001-04-25T18:10:09+04:00", "utc": "2001-04-25T14:10:09Z", "ms": 988207808634.6005 }, "end": { "local": "2001-04-26T17:01:07+04:00", "utc": "2001-04-26T13:01:07Z", "ms": 988290067295.8771 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-25T18:10:09+04:00", "utc": "2001-04-25T14:10:09Z", "ms": 988207808634.6005 }, "end": { "local": "2001-04-26T17:01:07+04:00", "utc": "2001-04-26T13:01:07Z", "ms": 988290067295.8771 } }, "kaala": "purvahna", "days": [ { "local_date": "2001-04-25", "window": { "start": { "local": "2001-04-25T06:18:29+04:00", "utc": "2001-04-25T02:18:29Z", "ms": 988165108803.7734 }, "end": { "local": "2001-04-25T10:47:37+04:00", "utc": "2001-04-25T06:47:37Z", "ms": 988181257333.8456 } }, "covered_min": 0, "window_min": 269, "qualifies": false }, { "local_date": "2001-04-26", "window": { "start": { "local": "2001-04-26T06:17:17+04:00", "utc": "2001-04-26T02:17:17Z", "ms": 988251437177.944 }, "end": { "local": "2001-04-26T10:47:07+04:00", "utc": "2001-04-26T06:47:07Z", "ms": 988267626773.9583 } }, "covered_min": 270, "window_min": 270, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 18:10 on Wed 25 Apr to 17:01 on Thu 26 Apr.", "fact": "2001-04-25T14:10:09Z → 2001-04-26T13:01:07Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:18–10:48 on the 25th, 06:17–10:47 on the 26th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 0 of 269 minutes on the 25th and 270 of 270 on the 26th.", "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 22441 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Erbil, 2001: Thursday 26 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": "2001-04-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-26", "confidence": "determinate" } ], "quote": "In Erbil, Akṣaya Tṛtīyā (Akha Teej) 2001 falls on Thursday 26 April. Tṛtīyā runs from 18:10 on Wed 25 Apr to 17:01 on Thu 26 Apr and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-04-27", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7825, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-04-26T17:01:07+04:00", "utc": "2001-04-26T13:01:07Z", "ms": 988290067295.8771 }, "end": { "local": "2001-04-27T15:36:17+04:00", "utc": "2001-04-27T11:36:17Z", "ms": 988371377274.4899 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-26T17:01:07+04:00", "utc": "2001-04-26T13:01:07Z", "ms": 988290067295.8771 }, "end": { "local": "2001-04-27T15:36:17+04:00", "utc": "2001-04-27T11:36:17Z", "ms": 988371377274.4899 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-04-26", "window": { "start": { "local": "2001-04-26T12:38:02+04:00", "utc": "2001-04-26T08:38:02Z", "ms": 988274281571.9655 }, "end": { "local": "2001-04-26T13:26:02+04:00", "utc": "2001-04-26T09:26:02Z", "ms": 988277161571.9655 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-04-27", "window": { "start": { "local": "2001-04-27T12:37:52+04:00", "utc": "2001-04-27T08:37:52Z", "ms": 988360672023.601 }, "end": { "local": "2001-04-27T13:25:52+04:00", "utc": "2001-04-27T09:25:52Z", "ms": 988363552023.601 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:01 on Thu 26 Apr to 15:36 on Fri 27 Apr.", "fact": "2001-04-26T13:01:07Z → 2001-04-27T11:36:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 26th, 12:38–13:26 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7825 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Friday 27 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": "2001-04-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-27", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Friday 27 April. Caturthī runs from 17:01 on Thu 26 Apr to 15:36 on Fri 27 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-04-27", "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/2001/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1959, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2001-04-27T15:36:17+04:00", "utc": "2001-04-27T11:36:17Z", "ms": 988371377274.4899 }, "end": { "local": "2001-04-28T13:58:22+04:00", "utc": "2001-04-28T09:58:22Z", "ms": 988451901742.6257 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-27T15:36:17+04:00", "utc": "2001-04-27T11:36:17Z", "ms": 988371377274.4899 }, "end": { "local": "2001-04-28T13:58:22+04:00", "utc": "2001-04-28T09:58:22Z", "ms": 988451901742.6257 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-04-27", "window": { "start": { "local": "2001-04-27T12:37:52+04:00", "utc": "2001-04-27T08:37:52Z", "ms": 988360672023.601 }, "end": { "local": "2001-04-27T13:25:52+04:00", "utc": "2001-04-27T09:25:52Z", "ms": 988363552023.601 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-04-28", "window": { "start": { "local": "2001-04-28T12:37:43+04:00", "utc": "2001-04-28T08:37:43Z", "ms": 988447062959.6212 }, "end": { "local": "2001-04-28T13:25:43+04:00", "utc": "2001-04-28T09:25:43Z", "ms": 988449942959.6212 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:36 on Fri 27 Apr to 13:58 on Sat 28 Apr.", "fact": "2001-04-27T11:36:17Z → 2001-04-28T09:58:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 27th, 12:38–13:26 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1959 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Erbil, 2001: Saturday 28 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": "2001-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-28", "confidence": "determinate" } ], "quote": "In Erbil, Śaṅkara Jayantī (Shankaracharya Jayanti) 2001 falls on Saturday 28 April. Pañcamī runs from 15:36 on Fri 27 Apr to 13:58 on Sat 28 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1700, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2001-04-29T12:09:15+04:00", "utc": "2001-04-29T08:09:15Z", "ms": 988531754503.0731 }, "end": { "local": "2001-04-30T10:10:19+04:00", "utc": "2001-04-30T06:10:19Z", "ms": 988611018708.5494 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-04-29T12:09:15+04:00", "utc": "2001-04-29T08:09:15Z", "ms": 988531754503.0731 }, "end": { "local": "2001-04-30T10:10:19+04:00", "utc": "2001-04-30T06:10:19Z", "ms": 988611018708.5494 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-04-29", "window": { "start": { "local": "2001-04-29T12:37:34+04:00", "utc": "2001-04-29T08:37:34Z", "ms": 988533454385.9482 }, "end": { "local": "2001-04-29T13:25:34+04:00", "utc": "2001-04-29T09:25:34Z", "ms": 988536334385.9482 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-04-30", "window": { "start": { "local": "2001-04-30T12:37:26+04:00", "utc": "2001-04-30T08:37:26Z", "ms": 988619846308.8489 }, "end": { "local": "2001-04-30T13:25:26+04:00", "utc": "2001-04-30T09:25:26Z", "ms": 988622726308.8489 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:09 on Sun 29 Apr to 10:10 on Mon 30 Apr.", "fact": "2001-04-29T08:09:15Z → 2001-04-30T06:10:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 29th, 12:37–13:25 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 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: purvaviddha → only-day · margin 1700 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Erbil, 2001: Sunday 29 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-04-29", "confidence": "determinate" } ], "quote": "In Erbil, Gaṅgotpatti (Ganga Saptami) 2001 falls on Sunday 29 April. Saptamī runs from 12:09 on Sun 29 Apr to 10:10 on Mon 30 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-05-03", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9518, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-05-03T03:30:46+04:00", "utc": "2001-05-02T23:30:46Z", "ms": 988846246004.7582 }, "end": { "local": "2001-05-04T01:12:31+04:00", "utc": "2001-05-03T21:12:31Z", "ms": 988924351398.4669 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-03T03:30:46+04:00", "utc": "2001-05-02T23:30:46Z", "ms": 988846246004.7582 }, "end": { "local": "2001-05-04T01:12:31+04:00", "utc": "2001-05-03T21:12:31Z", "ms": 988924351398.4669 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-05-03", "window": { "start": { "local": "2001-05-03T06:09:24+04:00", "utc": "2001-05-03T02:09:24Z", "ms": 988855764158.9269 }, "end": { "local": "2001-05-03T06:09:24+04:00", "utc": "2001-05-03T02:09:24Z", "ms": 988855764158.9269 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-05-04", "window": { "start": { "local": "2001-05-04T06:08:21+04:00", "utc": "2001-05-04T02:08:21Z", "ms": 988942100970.5282 }, "end": { "local": "2001-05-04T06:08:21+04:00", "utc": "2001-05-04T02:08:21Z", "ms": 988942100970.5282 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:31 on Thu 3 May to 01:13 on Fri 4 May.", "fact": "2001-05-02T23:30:46Z → 2001-05-03T21:12:31Z" }, { "step": "kaala", "text": "Sunrise is at 06:09 on the 3rd and 06:08 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9518 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Erbil, 2001: Thursday 3 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": "2001-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-03", "confidence": "determinate" } ], "quote": "In Erbil, Mohinī Ekādaśī 2001 falls on Thursday 3 May. Ekādaśī runs from 03:31 on Thu 3 May to 01:13 on Fri 4 May and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-05-03", "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/2001/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34449, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2001-05-04T01:12:31+04:00", "utc": "2001-05-03T21:12:31Z", "ms": 988924351398.4669 }, "end": { "local": "2001-05-04T22:59:09+04:00", "utc": "2001-05-04T18:59:09Z", "ms": 989002748585.6665 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-04T01:12:31+04:00", "utc": "2001-05-03T21:12:31Z", "ms": 988924351398.4669 }, "end": { "local": "2001-05-04T22:59:09+04:00", "utc": "2001-05-04T18:59:09Z", "ms": 989002748585.6665 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-05-03", "window": { "start": { "local": "2001-05-03T12:37:05+04:00", "utc": "2001-05-03T08:37:05Z", "ms": 988879025128.0605 }, "end": { "local": "2001-05-03T13:25:05+04:00", "utc": "2001-05-03T09:25:05Z", "ms": 988881905128.0605 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-05-04", "window": { "start": { "local": "2001-05-04T12:36:59+04:00", "utc": "2001-05-04T08:36:59Z", "ms": 988965419111.2002 }, "end": { "local": "2001-05-04T13:24:59+04:00", "utc": "2001-05-04T09:24:59Z", "ms": 988968299111.2002 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 01:13 on Fri 4 May to 22:59 on Fri 4 May.", "fact": "2001-05-03T21:12:31Z → 2001-05-04T18:59:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 3rd, 12:37–13:25 on the 4th.", "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 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: purvaviddha → only-day · margin 34449 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Erbil, 2001: Friday 4 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": "2001-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-04", "confidence": "determinate" } ], "quote": "In Erbil, Paraśurāma Dvādaśī 2001 falls on Friday 4 May. Dvādaśī runs from 01:13 on Fri 4 May to 22:59 on Fri 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34449, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2001-05-04T01:12:31+04:00", "utc": "2001-05-03T21:12:31Z", "ms": 988924351398.4669 }, "end": { "local": "2001-05-04T22:59:09+04:00", "utc": "2001-05-04T18:59:09Z", "ms": 989002748585.6665 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-04T01:12:31+04:00", "utc": "2001-05-03T21:12:31Z", "ms": 988924351398.4669 }, "end": { "local": "2001-05-04T22:59:09+04:00", "utc": "2001-05-04T18:59:09Z", "ms": 989002748585.6665 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-05-03", "window": { "start": { "local": "2001-05-03T12:37:05+04:00", "utc": "2001-05-03T08:37:05Z", "ms": 988879025128.0605 }, "end": { "local": "2001-05-03T13:25:05+04:00", "utc": "2001-05-03T09:25:05Z", "ms": 988881905128.0605 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-05-04", "window": { "start": { "local": "2001-05-04T12:36:59+04:00", "utc": "2001-05-04T08:36:59Z", "ms": 988965419111.2002 }, "end": { "local": "2001-05-04T13:24:59+04:00", "utc": "2001-05-04T09:24:59Z", "ms": 988968299111.2002 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 01:13 on Fri 4 May to 22:59 on Fri 4 May.", "fact": "2001-05-03T21:12:31Z → 2001-05-04T18:59:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 3rd, 12:37–13:25 on the 4th.", "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 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: purvaviddha → only-day · margin 34449 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Erbil, 2001: Friday 4 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": "2001-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-04", "confidence": "determinate" } ], "quote": "In Erbil, Rukmiṇī Dvādaśī 2001 falls on Friday 4 May. Dvādaśī runs from 01:13 on Fri 4 May to 22:59 on Fri 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1159, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-05-05T20:56:44+04:00", "utc": "2001-05-05T16:56:44Z", "ms": 989081804130.5874 }, "end": { "local": "2001-05-06T19:12:10+04:00", "utc": "2001-05-06T15:12:10Z", "ms": 989161929655.6442 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-05T20:56:44+04:00", "utc": "2001-05-05T16:56:44Z", "ms": 989081804130.5874 }, "end": { "local": "2001-05-06T19:12:10+04:00", "utc": "2001-05-06T15:12:10Z", "ms": 989161929655.6442 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-05-05", "window": { "start": { "local": "2001-05-05T19:54:28+04:00", "utc": "2001-05-05T15:54:28Z", "ms": 989078068295.0509 }, "end": { "local": "2001-05-05T21:16:03+04:00", "utc": "2001-05-05T17:16:03Z", "ms": 989082962945.4733 } }, "covered_min": 19, "window_min": 82, "qualifies": true }, { "local_date": "2001-05-06", "window": { "start": { "local": "2001-05-06T19:55:19+04:00", "utc": "2001-05-06T15:55:19Z", "ms": 989164519214.5297 }, "end": { "local": "2001-05-06T21:16:39+04:00", "utc": "2001-05-06T17:16:39Z", "ms": 989169399135.6187 } }, "covered_min": 0, "window_min": 81, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:57 on Sat 5 May to 19:12 on Sun 6 May.", "fact": "2001-05-05T16:56:44Z → 2001-05-06T15:12:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:54–21:16 on the 5th, 19:55–21:17 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 19 of 82 minutes on the 5th and 0 of 81 on the 6th.", "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 1159 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Erbil, 2001: Saturday 5 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": "2001-05-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-05", "confidence": "determinate" } ], "quote": "In Erbil, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2001 falls on Saturday 5 May. Caturdaśī runs from 20:57 on Sat 5 May to 19:12 on Sun 6 May and covers 19 of 82 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/pradosha-vrata?on=2001-05-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1159, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-05-04T22:59:09+04:00", "utc": "2001-05-04T18:59:09Z", "ms": 989002748585.6665 }, "end": { "local": "2001-05-05T20:56:44+04:00", "utc": "2001-05-05T16:56:44Z", "ms": 989081804130.5874 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-04T22:59:09+04:00", "utc": "2001-05-04T18:59:09Z", "ms": 989002748585.6665 }, "end": { "local": "2001-05-05T20:56:44+04:00", "utc": "2001-05-05T16:56:44Z", "ms": 989081804130.5874 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-05-04", "window": { "start": { "local": "2001-05-04T19:53:37+04:00", "utc": "2001-05-04T15:53:37Z", "ms": 988991617251.8723 }, "end": { "local": "2001-05-04T21:15:27+04:00", "utc": "2001-05-04T17:15:27Z", "ms": 988996526813.6924 } }, "covered_min": 0, "window_min": 82, "qualifies": false }, { "local_date": "2001-05-05", "window": { "start": { "local": "2001-05-05T19:54:28+04:00", "utc": "2001-05-05T15:54:28Z", "ms": 989078068295.0509 }, "end": { "local": "2001-05-05T21:16:03+04:00", "utc": "2001-05-05T17:16:03Z", "ms": 989082962945.4733 } }, "covered_min": 62, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:59 on Fri 4 May to 20:57 on Sat 5 May.", "fact": "2001-05-04T18:59:09Z → 2001-05-05T16:56:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:54–21:15 on the 4th, 19:54–21:16 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 82 minutes on the 4th and 62 of 82 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 1159 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Saturday 5 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-05-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-05", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Saturday 5 May. Trayodaśī runs from 22:59 on Fri 4 May to 20:57 on Sat 5 May and covers 62 of 82 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-05-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16068, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-05-06T19:12:10+04:00", "utc": "2001-05-06T15:12:10Z", "ms": 989161929655.6442 }, "end": { "local": "2001-05-07T17:52:32+04:00", "utc": "2001-05-07T13:52:32Z", "ms": 989243552010.9359 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-06T19:12:10+04:00", "utc": "2001-05-06T15:12:10Z", "ms": 989161929655.6442 }, "end": { "local": "2001-05-07T17:52:32+04:00", "utc": "2001-05-07T13:52:32Z", "ms": 989243552010.9359 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-05-06", "window": { "start": { "local": "2001-05-06T12:36:49+04:00", "utc": "2001-05-06T08:36:49Z", "ms": 989138208693.8743 }, "end": { "local": "2001-05-06T13:24:49+04:00", "utc": "2001-05-06T09:24:49Z", "ms": 989141088693.8743 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-05-07", "window": { "start": { "local": "2001-05-07T12:36:44+04:00", "utc": "2001-05-07T08:36:44Z", "ms": 989224604310.0432 }, "end": { "local": "2001-05-07T13:24:44+04:00", "utc": "2001-05-07T09:24:44Z", "ms": 989227484310.0432 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:12 on Sun 6 May to 17:53 on Mon 7 May.", "fact": "2001-05-06T15:12:10Z → 2001-05-07T13:52:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 6th, 12:37–13:25 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: unstated → only-day · margin 16068 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Erbil, 2001: Monday 7 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": "2001-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-07", "confidence": "determinate" } ], "quote": "In Erbil, Buddha Pūrṇimā (Vesak) 2001 falls on Monday 7 May. Pūrṇimā runs from 19:12 on Sun 6 May to 17:53 on Mon 7 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16068, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-05-06T19:12:10+04:00", "utc": "2001-05-06T15:12:10Z", "ms": 989161929655.6442 }, "end": { "local": "2001-05-07T17:52:32+04:00", "utc": "2001-05-07T13:52:32Z", "ms": 989243552010.9359 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-06T19:12:10+04:00", "utc": "2001-05-06T15:12:10Z", "ms": 989161929655.6442 }, "end": { "local": "2001-05-07T17:52:32+04:00", "utc": "2001-05-07T13:52:32Z", "ms": 989243552010.9359 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-05-06", "window": { "start": { "local": "2001-05-06T12:36:49+04:00", "utc": "2001-05-06T08:36:49Z", "ms": 989138208693.8743 }, "end": { "local": "2001-05-06T13:24:49+04:00", "utc": "2001-05-06T09:24:49Z", "ms": 989141088693.8743 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-05-07", "window": { "start": { "local": "2001-05-07T12:36:44+04:00", "utc": "2001-05-07T08:36:44Z", "ms": 989224604310.0432 }, "end": { "local": "2001-05-07T13:24:44+04:00", "utc": "2001-05-07T09:24:44Z", "ms": 989227484310.0432 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:12 on Sun 6 May to 17:53 on Mon 7 May.", "fact": "2001-05-06T15:12:10Z → 2001-05-07T13:52:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 6th, 12:37–13:25 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 16068 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Erbil, 2001: Monday 7 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": "2001-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-07", "confidence": "determinate" } ], "quote": "In Erbil, Sampat Gaurī Vrata 2001 falls on Monday 7 May. Pūrṇimā runs from 19:12 on Sun 6 May to 17:53 on Mon 7 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-05-10", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19190, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-05-10T17:22:55+04:00", "utc": "2001-05-10T13:22:55Z", "ms": 989500975405.5475 }, "end": { "local": "2001-05-11T18:32:17+04:00", "utc": "2001-05-11T14:32:17Z", "ms": 989591536691.7504 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-10T17:22:55+04:00", "utc": "2001-05-10T13:22:55Z", "ms": 989500975405.5475 }, "end": { "local": "2001-05-11T18:32:17+04:00", "utc": "2001-05-11T14:32:17Z", "ms": 989591536691.7504 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-05-10", "window": { "start": { "local": "2001-05-10T22:58:01+04:00", "utc": "2001-05-10T18:58:01Z", "ms": 989521081374.4713 }, "end": { "local": "2001-05-10T22:58:01+04:00", "utc": "2001-05-10T18:58:01Z", "ms": 989521081374.4713 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-05-11", "window": { "start": { "local": "2001-05-11T23:52:06+04:00", "utc": "2001-05-11T19:52:06Z", "ms": 989610726316.7314 }, "end": { "local": "2001-05-11T23:52:06+04:00", "utc": "2001-05-11T19:52:06Z", "ms": 989610726316.7314 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:23 on Thu 10 May to 18:32 on Fri 11 May.", "fact": "2001-05-10T13:22:55Z → 2001-05-11T14:32:17Z" }, { "step": "kaala", "text": "Moonrise is at 22:58 on the 10th and 23:52 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 19190 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Thursday 10 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": "2001-05-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-10", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Thursday 10 May. Caturthī runs from 17:23 on Thu 10 May to 18:32 on Fri 11 May and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-05-10", "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/2001/ekadashi?on=2001-05-19", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5042, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-05-18T07:19:55+04:00", "utc": "2001-05-18T03:19:55Z", "ms": 990155995150.5182 }, "end": { "local": "2001-05-19T08:29:29+04:00", "utc": "2001-05-19T04:29:29Z", "ms": 990246568587.439 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-18T07:19:55+04:00", "utc": "2001-05-18T03:19:55Z", "ms": 990155995150.5182 }, "end": { "local": "2001-05-19T08:29:29+04:00", "utc": "2001-05-19T04:29:29Z", "ms": 990246568587.439 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-05-18", "window": { "start": { "local": "2001-05-18T05:55:53+04:00", "utc": "2001-05-18T01:55:53Z", "ms": 990150953324.7222 }, "end": { "local": "2001-05-18T05:55:53+04:00", "utc": "2001-05-18T01:55:53Z", "ms": 990150953324.7222 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-05-19", "window": { "start": { "local": "2001-05-19T05:55:11+04:00", "utc": "2001-05-19T01:55:11Z", "ms": 990237310733.5499 }, "end": { "local": "2001-05-19T05:55:11+04:00", "utc": "2001-05-19T01:55:11Z", "ms": 990237310733.5499 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:20 on Fri 18 May to 08:29 on Sat 19 May.", "fact": "2001-05-18T03:19:55Z → 2001-05-19T04:29:29Z" }, { "step": "kaala", "text": "Sunrise is at 05:56 on the 18th and 05:55 on the 19th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 18th and is on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5042 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Erbil, 2001: Saturday 19 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": "2001-05-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-19", "confidence": "determinate" } ], "quote": "In Erbil, Aparā Ekādaśī 2001 falls on Saturday 19 May. Ekādaśī runs from 07:20 on Fri 18 May to 08:29 on Sat 19 May and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-05-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-05-20", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40038, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-05-20T08:59:31+04:00", "utc": "2001-05-20T04:59:31Z", "ms": 990334771202.8896 }, "end": { "local": "2001-05-21T08:49:57+04:00", "utc": "2001-05-21T04:49:57Z", "ms": 990420597299.5602 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-20T08:59:31+04:00", "utc": "2001-05-20T04:59:31Z", "ms": 990334771202.8896 }, "end": { "local": "2001-05-21T08:49:57+04:00", "utc": "2001-05-21T04:49:57Z", "ms": 990420597299.5602 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-05-20", "window": { "start": { "local": "2001-05-20T20:06:49+04:00", "utc": "2001-05-20T16:06:49Z", "ms": 990374808871.5549 }, "end": { "local": "2001-05-20T21:25:05+04:00", "utc": "2001-05-20T17:25:05Z", "ms": 990379505054.3802 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "2001-05-21", "window": { "start": { "local": "2001-05-21T20:07:35+04:00", "utc": "2001-05-21T16:07:35Z", "ms": 990461255456.6268 }, "end": { "local": "2001-05-21T21:25:40+04:00", "utc": "2001-05-21T17:25:40Z", "ms": 990465940379.0693 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:00 on Sun 20 May to 08:50 on Mon 21 May.", "fact": "2001-05-20T04:59:31Z → 2001-05-21T04:49:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:07–21:25 on the 20th, 20:08–21:26 on the 21st.", "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 20th and 0 of 78 on the 21st.", "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 40038 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Sunday 20 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": "2001-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-20", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Sunday 20 May. Trayodaśī runs from 09:00 on Sun 20 May to 08:50 on Mon 21 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-05-20", "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/2001/shivaratri?on=2001-05-21", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23963, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-05-21T08:49:57+04:00", "utc": "2001-05-21T04:49:57Z", "ms": 990420597299.5602 }, "end": { "local": "2001-05-22T08:03:47+04:00", "utc": "2001-05-22T04:03:47Z", "ms": 990504226812.647 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-21T08:49:57+04:00", "utc": "2001-05-21T04:49:57Z", "ms": 990420597299.5602 }, "end": { "local": "2001-05-22T08:03:47+04:00", "utc": "2001-05-22T04:03:47Z", "ms": 990504226812.647 } }, "kaala": "nishita", "days": [ { "local_date": "2001-05-20", "window": { "start": { "local": "2001-05-21T00:36:20+04:00", "utc": "2001-05-20T20:36:20Z", "ms": 990390979557.1501 }, "end": { "local": "2001-05-21T01:24:20+04:00", "utc": "2001-05-20T21:24:20Z", "ms": 990393859557.1501 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-05-21", "window": { "start": { "local": "2001-05-22T00:36:24+04:00", "utc": "2001-05-21T20:36:24Z", "ms": 990477383915.7864 }, "end": { "local": "2001-05-22T01:24:24+04:00", "utc": "2001-05-21T21:24:24Z", "ms": 990480263915.7864 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:50 on Mon 21 May to 08:04 on Tue 22 May.", "fact": "2001-05-21T04:49:57Z → 2001-05-22T04:03:47Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:36–01:24 on the 20th, 00:36–01:24 on the 21st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23963 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Monday 21 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": "2001-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-21", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Monday 21 May. Caturdaśī runs from 08:50 on Mon 21 May to 08:04 on Tue 22 May and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-05-21", "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/2001/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34591, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2001-05-25T03:00:31+04:00", "utc": "2001-05-24T23:00:31Z", "ms": 990745230982.8105 }, "end": { "local": "2001-05-26T00:45:19+04:00", "utc": "2001-05-25T20:45:19Z", "ms": 990823518545.0872 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-25T03:00:31+04:00", "utc": "2001-05-24T23:00:31Z", "ms": 990745230982.8105 }, "end": { "local": "2001-05-26T00:45:19+04:00", "utc": "2001-05-25T20:45:19Z", "ms": 990823518545.0872 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-05-25", "window": { "start": { "local": "2001-05-25T12:37:02+04:00", "utc": "2001-05-25T08:37:02Z", "ms": 990779822278.9021 }, "end": { "local": "2001-05-25T13:25:02+04:00", "utc": "2001-05-25T09:25:02Z", "ms": 990782702278.9021 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-05-26", "window": { "start": { "local": "2001-05-26T12:37:08+04:00", "utc": "2001-05-26T08:37:08Z", "ms": 990866228357.2161 }, "end": { "local": "2001-05-26T13:25:08+04:00", "utc": "2001-05-26T09:25:08Z", "ms": 990869108357.2161 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 03:01 on Fri 25 May to 00:45 on Sat 26 May.", "fact": "2001-05-24T23:00:31Z → 2001-05-25T20:45:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 25th, 12:37–13:25 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 34591 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Erbil, 2001: Friday 25 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": "2001-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-25", "confidence": "determinate" } ], "quote": "In Erbil, Rambhā Tṛtīyā 2001 falls on Friday 25 May. Tṛtīyā runs from 03:01 on Fri 25 May to 00:45 on Sat 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-05-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32257, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-05-26T00:45:19+04:00", "utc": "2001-05-25T20:45:19Z", "ms": 990823518545.0872 }, "end": { "local": "2001-05-26T22:22:46+04:00", "utc": "2001-05-26T18:22:46Z", "ms": 990901365550.4136 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-26T00:45:19+04:00", "utc": "2001-05-25T20:45:19Z", "ms": 990823518545.0872 }, "end": { "local": "2001-05-26T22:22:46+04:00", "utc": "2001-05-26T18:22:46Z", "ms": 990901365550.4136 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-05-25", "window": { "start": { "local": "2001-05-25T12:37:02+04:00", "utc": "2001-05-25T08:37:02Z", "ms": 990779822278.9021 }, "end": { "local": "2001-05-25T13:25:02+04:00", "utc": "2001-05-25T09:25:02Z", "ms": 990782702278.9021 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-05-26", "window": { "start": { "local": "2001-05-26T12:37:08+04:00", "utc": "2001-05-26T08:37:08Z", "ms": 990866228357.2161 }, "end": { "local": "2001-05-26T13:25:08+04:00", "utc": "2001-05-26T09:25:08Z", "ms": 990869108357.2161 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:45 on Sat 26 May to 22:23 on Sat 26 May.", "fact": "2001-05-25T20:45:19Z → 2001-05-26T18:22:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 25th, 12:37–13:25 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 32257 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Saturday 26 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": "2001-05-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-26", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Saturday 26 May. Caturthī runs from 00:45 on Sat 26 May to 22:23 on Sat 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-05-26", "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/2001/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14929, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2001-05-27T19:57:42+04:00", "utc": "2001-05-27T15:57:42Z", "ms": 990979061517.4232 }, "end": { "local": "2001-05-28T17:34:10+04:00", "utc": "2001-05-28T13:34:10Z", "ms": 991056850374.2487 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-27T19:57:42+04:00", "utc": "2001-05-27T15:57:42Z", "ms": 990979061517.4232 }, "end": { "local": "2001-05-28T17:34:10+04:00", "utc": "2001-05-28T13:34:10Z", "ms": 991056850374.2487 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-05-27", "window": { "start": { "local": "2001-05-27T12:37:15+04:00", "utc": "2001-05-27T08:37:15Z", "ms": 990952634892.113 }, "end": { "local": "2001-05-27T13:25:15+04:00", "utc": "2001-05-27T09:25:15Z", "ms": 990955514892.113 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-05-28", "window": { "start": { "local": "2001-05-28T12:37:22+04:00", "utc": "2001-05-28T08:37:22Z", "ms": 991039041867.5894 }, "end": { "local": "2001-05-28T13:25:22+04:00", "utc": "2001-05-28T09:25:22Z", "ms": 991041921867.5894 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 19:58 on Sun 27 May to 17:34 on Mon 28 May.", "fact": "2001-05-27T15:57:42Z → 2001-05-28T13:34:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 27th, 12:37–13:25 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14929 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Erbil, 2001: Monday 28 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": "2001-05-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-28", "confidence": "determinate" } ], "quote": "In Erbil, Araṇya Gaurī Vrata 2001 falls on Monday 28 May. Ṣaṣṭhī runs from 19:58 on Sun 27 May to 17:34 on Mon 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14929, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2001-05-27T19:57:42+04:00", "utc": "2001-05-27T15:57:42Z", "ms": 990979061517.4232 }, "end": { "local": "2001-05-28T17:34:10+04:00", "utc": "2001-05-28T13:34:10Z", "ms": 991056850374.2487 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-05-27T19:57:42+04:00", "utc": "2001-05-27T15:57:42Z", "ms": 990979061517.4232 }, "end": { "local": "2001-05-28T17:34:10+04:00", "utc": "2001-05-28T13:34:10Z", "ms": 991056850374.2487 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-05-27", "window": { "start": { "local": "2001-05-27T12:37:15+04:00", "utc": "2001-05-27T08:37:15Z", "ms": 990952634892.113 }, "end": { "local": "2001-05-27T13:25:15+04:00", "utc": "2001-05-27T09:25:15Z", "ms": 990955514892.113 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-05-28", "window": { "start": { "local": "2001-05-28T12:37:22+04:00", "utc": "2001-05-28T08:37:22Z", "ms": 991039041867.5894 }, "end": { "local": "2001-05-28T13:25:22+04:00", "utc": "2001-05-28T09:25:22Z", "ms": 991041921867.5894 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 19:58 on Sun 27 May to 17:34 on Mon 28 May.", "fact": "2001-05-27T15:57:42Z → 2001-05-28T13:34:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 27th, 12:37–13:25 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 14929 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Erbil, 2001: Monday 28 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": "2001-05-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-05-28", "confidence": "determinate" } ], "quote": "In Erbil, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2001 falls on Monday 28 May. Ṣaṣṭhī runs from 19:58 on Sun 27 May to 17:34 on Mon 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-06-02", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7223, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-06-01T09:18:31+04:00", "utc": "2001-06-01T05:18:31Z", "ms": 991372711251.4613 }, "end": { "local": "2001-06-02T07:48:27+04:00", "utc": "2001-06-02T03:48:27Z", "ms": 991453707343.9657 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-01T09:18:31+04:00", "utc": "2001-06-01T05:18:31Z", "ms": 991372711251.4613 }, "end": { "local": "2001-06-02T07:48:27+04:00", "utc": "2001-06-02T03:48:27Z", "ms": 991453707343.9657 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-06-01", "window": { "start": { "local": "2001-06-01T05:48:24+04:00", "utc": "2001-06-01T01:48:24Z", "ms": 991360103588.9143 }, "end": { "local": "2001-06-01T05:48:24+04:00", "utc": "2001-06-01T01:48:24Z", "ms": 991360103588.9143 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-06-02", "window": { "start": { "local": "2001-06-02T05:48:04+04:00", "utc": "2001-06-02T01:48:04Z", "ms": 991446483897.9785 }, "end": { "local": "2001-06-02T05:48:04+04:00", "utc": "2001-06-02T01:48:04Z", "ms": 991446483897.9785 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:19 on Fri 1 Jun to 07:48 on Sat 2 Jun.", "fact": "2001-06-01T05:18:31Z → 2001-06-02T03:48:27Z" }, { "step": "kaala", "text": "Sunrise is at 05:48 on the 1st and 05:48 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 7223 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Erbil, 2001: Saturday 2 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-02", "confidence": "determinate" } ], "quote": "In Erbil, Nirjalā Ekādaśī 2001 falls on Saturday 2 June. Ekādaśī runs from 09:19 on Fri 1 Jun to 07:48 on Sat 2 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-06-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17375, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2001-06-02T07:48:27+04:00", "utc": "2001-06-02T03:48:27Z", "ms": 991453707343.9657 }, "end": { "local": "2001-06-03T06:38:06+04:00", "utc": "2001-06-03T02:38:06Z", "ms": 991535885607.1538 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-02T07:48:27+04:00", "utc": "2001-06-02T03:48:27Z", "ms": 991453707343.9657 }, "end": { "local": "2001-06-03T06:38:06+04:00", "utc": "2001-06-03T02:38:06Z", "ms": 991535885607.1538 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-06-02", "window": { "start": { "local": "2001-06-02T12:38:03+04:00", "utc": "2001-06-02T08:38:03Z", "ms": 991471082832.9829 }, "end": { "local": "2001-06-02T13:26:03+04:00", "utc": "2001-06-02T09:26:03Z", "ms": 991473962832.9829 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-06-03", "window": { "start": { "local": "2001-06-03T12:38:12+04:00", "utc": "2001-06-03T08:38:12Z", "ms": 991557492146.3916 }, "end": { "local": "2001-06-03T13:26:12+04:00", "utc": "2001-06-03T09:26:12Z", "ms": 991560372146.3916 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 07:48 on Sat 2 Jun to 06:38 on Sun 3 Jun.", "fact": "2001-06-02T03:48:27Z → 2001-06-03T02:38:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 2nd, 12:38–13:26 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17375 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Erbil, 2001: Saturday 2 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": "2001-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-02", "confidence": "determinate" } ], "quote": "In Erbil, Śrī Rāma Dvādaśī 2001 falls on Saturday 2 June. Dvādaśī runs from 07:48 on Sat 2 Jun to 06:38 on Sun 3 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/pradosha-vrata?on=2001-06-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29889, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-06-03T06:38:06+04:00", "utc": "2001-06-03T02:38:06Z", "ms": 991535885607.1538 }, "end": { "local": "2001-06-04T05:50:54+04:00", "utc": "2001-06-04T01:50:54Z", "ms": 991619454207.53 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-03T06:38:06+04:00", "utc": "2001-06-03T02:38:06Z", "ms": 991535885607.1538 }, "end": { "local": "2001-06-04T05:50:54+04:00", "utc": "2001-06-04T01:50:54Z", "ms": 991619454207.53 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-06-02", "window": { "start": { "local": "2001-06-02T20:16:02+04:00", "utc": "2001-06-02T16:16:02Z", "ms": 991498561767.9872 }, "end": { "local": "2001-06-02T21:32:16+04:00", "utc": "2001-06-02T17:32:16Z", "ms": 991503135653.2726 } }, "covered_min": 0, "window_min": 76, "qualifies": false }, { "local_date": "2001-06-03", "window": { "start": { "local": "2001-06-03T20:16:38+04:00", "utc": "2001-06-03T16:16:38Z", "ms": 991584998385.1556 }, "end": { "local": "2001-06-03T21:32:45+04:00", "utc": "2001-06-03T17:32:45Z", "ms": 991589565216.8431 } }, "covered_min": 76, "window_min": 76, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:38 on Sun 3 Jun to 05:51 on Mon 4 Jun.", "fact": "2001-06-03T02:38:06Z → 2001-06-04T01:50:54Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:16–21:32 on the 2nd, 20:17–21:33 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 76 minutes on the 2nd and 76 of 76 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 29889 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Sunday 3 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": "2001-06-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-03", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Sunday 3 June. Trayodaśī runs from 06:38 on Sun 3 Jun to 05:51 on Mon 4 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-06-03", "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/2001/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28625, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-06-05T05:30:19+04:00", "utc": "2001-06-05T01:30:19Z", "ms": 991704619366.2747 }, "end": { "local": "2001-06-06T05:39:21+04:00", "utc": "2001-06-06T01:39:21Z", "ms": 991791560508.3997 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-05T05:30:19+04:00", "utc": "2001-06-05T01:30:19Z", "ms": 991704619366.2747 }, "end": { "local": "2001-06-06T05:39:21+04:00", "utc": "2001-06-06T01:39:21Z", "ms": 991791560508.3997 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-06-04", "window": { "start": { "local": "2001-06-04T20:17:14+04:00", "utc": "2001-06-04T16:17:14Z", "ms": 991671433981.0823 }, "end": { "local": "2001-06-04T21:33:14+04:00", "utc": "2001-06-04T17:33:14Z", "ms": 991675994123.2542 } }, "covered_min": 0, "window_min": 76, "qualifies": false }, { "local_date": "2001-06-05", "window": { "start": { "local": "2001-06-05T20:17:49+04:00", "utc": "2001-06-05T16:17:49Z", "ms": 991757868524.0704 }, "end": { "local": "2001-06-05T21:33:42+04:00", "utc": "2001-06-05T17:33:42Z", "ms": 991762422345.3885 } }, "covered_min": 76, "window_min": 76, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:30 on Tue 5 Jun to 05:39 on Wed 6 Jun.", "fact": "2001-06-05T01:30:19Z → 2001-06-06T01:39:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:17–21:33 on the 4th, 20:18–21:34 on the 5th.", "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 76 minutes on the 4th and 76 of 76 on the 5th.", "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 28625 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Erbil, 2001: Tuesday 5 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": "2001-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-05", "confidence": "determinate" } ], "quote": "In Erbil, Vaṭa Sāvitrī Vrata (Vat Purnima) 2001 falls on Tuesday 5 June. Pūrṇimā runs from 05:30 on Tue 5 Jun to 05:39 on Wed 6 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-06-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38422, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-06-09T09:14:13+04:00", "utc": "2001-06-09T05:14:13Z", "ms": 992063653250.7728 }, "end": { "local": "2001-06-10T11:20:25+04:00", "utc": "2001-06-10T07:20:25Z", "ms": 992157624668.4855 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-09T09:14:13+04:00", "utc": "2001-06-09T05:14:13Z", "ms": 992063653250.7728 }, "end": { "local": "2001-06-10T11:20:25+04:00", "utc": "2001-06-10T07:20:25Z", "ms": 992157624668.4855 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-06-08", "window": { "start": { "local": "2001-06-08T22:33:52+04:00", "utc": "2001-06-08T18:33:52Z", "ms": 992025231653.1703 }, "end": { "local": "2001-06-08T22:33:52+04:00", "utc": "2001-06-08T18:33:52Z", "ms": 992025231653.1703 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-06-09", "window": { "start": { "local": "2001-06-09T23:19:10+04:00", "utc": "2001-06-09T19:19:10Z", "ms": 992114349515.2374 }, "end": { "local": "2001-06-09T23:19:10+04:00", "utc": "2001-06-09T19:19:10Z", "ms": 992114349515.2374 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:14 on Sat 9 Jun to 11:20 on Sun 10 Jun.", "fact": "2001-06-09T05:14:13Z → 2001-06-10T07:20:25Z" }, { "step": "kaala", "text": "Moonrise is at 22:34 on the 8th and 23:19 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 8th and is on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38422 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Saturday 9 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": "2001-06-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-09", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Saturday 9 June. Caturthī runs from 09:14 on Sat 9 Jun to 11:20 on Sun 10 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-06-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/ekadashi?on=2001-06-17", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26067, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-06-16T22:31:43+04:00", "utc": "2001-06-16T18:31:43Z", "ms": 992716303167.5436 }, "end": { "local": "2001-06-17T22:32:13+04:00", "utc": "2001-06-17T18:32:13Z", "ms": 992802733420.867 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-16T22:31:43+04:00", "utc": "2001-06-16T18:31:43Z", "ms": 992716303167.5436 }, "end": { "local": "2001-06-17T22:32:13+04:00", "utc": "2001-06-17T18:32:13Z", "ms": 992802733420.867 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-06-17", "window": { "start": { "local": "2001-06-17T05:46:33+04:00", "utc": "2001-06-17T01:46:33Z", "ms": 992742392951.6581 }, "end": { "local": "2001-06-17T05:46:33+04:00", "utc": "2001-06-17T01:46:33Z", "ms": 992742392951.6581 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-06-18", "window": { "start": { "local": "2001-06-18T05:46:40+04:00", "utc": "2001-06-18T01:46:40Z", "ms": 992828800274.8088 }, "end": { "local": "2001-06-18T05:46:40+04:00", "utc": "2001-06-18T01:46:40Z", "ms": 992828800274.8088 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:32 on Sat 16 Jun to 22:32 on Sun 17 Jun.", "fact": "2001-06-16T18:31:43Z → 2001-06-17T18:32:13Z" }, { "step": "kaala", "text": "Sunrise is at 05:47 on the 17th and 05:47 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 17th and is not on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26067 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Erbil, 2001: Sunday 17 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": "2001-06-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-17", "confidence": "determinate" } ], "quote": "In Erbil, Yoginī Ekādaśī 2001 falls on Sunday 17 June. Ekādaśī runs from 22:32 on Sat 16 Jun to 22:32 on Sun 17 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-06-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-06-19", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-19", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 65, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-06-18T21:48:53+04:00", "utc": "2001-06-18T17:48:53Z", "ms": 992886533175.9109 }, "end": { "local": "2001-06-19T20:24:49+04:00", "utc": "2001-06-19T16:24:49Z", "ms": 992967889101.1055 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-18T21:48:53+04:00", "utc": "2001-06-18T17:48:53Z", "ms": 992886533175.9109 }, "end": { "local": "2001-06-19T20:24:49+04:00", "utc": "2001-06-19T16:24:49Z", "ms": 992967889101.1055 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-06-18", "window": { "start": { "local": "2001-06-18T20:23:27+04:00", "utc": "2001-06-18T16:23:27Z", "ms": 992881407264.5503 }, "end": { "local": "2001-06-18T21:38:34+04:00", "utc": "2001-06-18T17:38:34Z", "ms": 992885914188.4342 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "2001-06-19", "window": { "start": { "local": "2001-06-19T20:23:44+04:00", "utc": "2001-06-19T16:23:44Z", "ms": 992967823732.8735 }, "end": { "local": "2001-06-19T21:38:50+04:00", "utc": "2001-06-19T17:38:50Z", "ms": 992972329859.7592 } }, "covered_min": 1, "window_min": 75, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:49 on Mon 18 Jun to 20:25 on Tue 19 Jun.", "fact": "2001-06-18T17:48:53Z → 2001-06-19T16:24:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:23–21:39 on the 18th, 20:24–21:39 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 75 minutes on the 18th and 1 of 75 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 65 s < 300 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Tuesday 19 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": "2001-06-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-18", "confidence": "boundary" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Tuesday 19 June. Trayodaśī runs from 21:49 on Mon 18 Jun to 20:25 on Tue 19 Jun and covers 1 of 75 minutes of pradoṣa that evening. It is 1 min 05 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-06-19", "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/2001/shivaratri?on=2001-06-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15393, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-06-19T20:24:49+04:00", "utc": "2001-06-19T16:24:49Z", "ms": 992967889101.1055 }, "end": { "local": "2001-06-20T18:25:27+04:00", "utc": "2001-06-20T14:25:27Z", "ms": 993047127481.7286 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-19T20:24:49+04:00", "utc": "2001-06-19T16:24:49Z", "ms": 992967889101.1055 }, "end": { "local": "2001-06-20T18:25:27+04:00", "utc": "2001-06-20T14:25:27Z", "ms": 993047127481.7286 } }, "kaala": "nishita", "days": [ { "local_date": "2001-06-19", "window": { "start": { "local": "2001-06-20T00:41:22+04:00", "utc": "2001-06-19T20:41:22Z", "ms": 992983281708.6946 }, "end": { "local": "2001-06-20T01:29:22+04:00", "utc": "2001-06-19T21:29:22Z", "ms": 992986161708.6946 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-06-20", "window": { "start": { "local": "2001-06-21T00:41:35+04:00", "utc": "2001-06-20T20:41:35Z", "ms": 993069695200.0756 }, "end": { "local": "2001-06-21T01:29:35+04:00", "utc": "2001-06-20T21:29:35Z", "ms": 993072575200.0756 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:25 on Tue 19 Jun to 18:25 on Wed 20 Jun.", "fact": "2001-06-19T16:24:49Z → 2001-06-20T14:25:27Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:41–01:29 on the 19th, 00:42–01:30 on the 20th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15393 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Tuesday 19 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-06-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-19", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Tuesday 19 June. Caturdaśī runs from 20:25 on Tue 19 Jun to 18:25 on Wed 20 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-06-19", "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/2001/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1226, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2001-06-22T13:09:29+04:00", "utc": "2001-06-22T09:09:29Z", "ms": 993200968772.4463 }, "end": { "local": "2001-06-23T10:08:42+04:00", "utc": "2001-06-23T06:08:42Z", "ms": 993276522372.7673 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-22T13:09:29+04:00", "utc": "2001-06-22T09:09:29Z", "ms": 993200968772.4463 }, "end": { "local": "2001-06-23T10:08:42+04:00", "utc": "2001-06-23T06:08:42Z", "ms": 993276522372.7673 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-06-22", "window": { "start": { "local": "2001-06-22T12:41:55+04:00", "utc": "2001-06-22T08:41:55Z", "ms": 993199314581.2926 }, "end": { "local": "2001-06-22T13:29:55+04:00", "utc": "2001-06-22T09:29:55Z", "ms": 993202194581.2926 } }, "covered_min": 20, "window_min": 48, "qualifies": true }, { "local_date": "2001-06-23", "window": { "start": { "local": "2001-06-23T12:42:07+04:00", "utc": "2001-06-23T08:42:07Z", "ms": 993285727204.123 }, "end": { "local": "2001-06-23T13:30:07+04:00", "utc": "2001-06-23T09:30:07Z", "ms": 993288607204.123 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 13:09 on Fri 22 Jun to 10:09 on Sat 23 Jun.", "fact": "2001-06-22T09:09:29Z → 2001-06-23T06:08:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 22nd, 12:42–13:30 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 20 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "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 1226 s" }, { "step": "ruling", "text": "Rathayātrā, Erbil, 2001: Friday 22 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": "2001-06-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-22", "confidence": "determinate" } ], "quote": "In Erbil, Rathayātrā 2001 falls on Friday 22 June. Dvitīyā runs from 13:09 on Fri 22 Jun to 10:09 on Sat 23 Jun and covers 20 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-06-24", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20335, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-06-24T07:03:25+04:00", "utc": "2001-06-24T03:03:25Z", "ms": 993351804593.8378 }, "end": { "local": "2001-06-25T04:01:10+04:00", "utc": "2001-06-25T00:01:10Z", "ms": 993427270287.7369 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-24T07:03:25+04:00", "utc": "2001-06-24T03:03:25Z", "ms": 993351804593.8378 }, "end": { "local": "2001-06-25T04:01:10+04:00", "utc": "2001-06-25T00:01:10Z", "ms": 993427270287.7369 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-06-24", "window": { "start": { "local": "2001-06-24T12:42:20+04:00", "utc": "2001-06-24T08:42:20Z", "ms": 993372139736.8752 }, "end": { "local": "2001-06-24T13:30:20+04:00", "utc": "2001-06-24T09:30:20Z", "ms": 993375019736.8752 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-06-25", "window": { "start": { "local": "2001-06-25T12:42:32+04:00", "utc": "2001-06-25T08:42:32Z", "ms": 993458552151.4285 }, "end": { "local": "2001-06-25T13:30:32+04:00", "utc": "2001-06-25T09:30:32Z", "ms": 993461432151.4285 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:03 on Sun 24 Jun to 04:01 on Mon 25 Jun.", "fact": "2001-06-24T03:03:25Z → 2001-06-25T00:01:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 24th, 12:43–13:31 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20335 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Sunday 24 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-06-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-24", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Sunday 24 June. Caturthī runs from 07:03 on Sun 24 Jun to 04:01 on Mon 25 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-06-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31282, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2001-06-25T04:01:10+04:00", "utc": "2001-06-25T00:01:10Z", "ms": 993427270287.7369 }, "end": { "local": "2001-06-26T01:08:56+04:00", "utc": "2001-06-25T21:08:56Z", "ms": 993503335969.7021 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-25T04:01:10+04:00", "utc": "2001-06-25T00:01:10Z", "ms": 993427270287.7369 }, "end": { "local": "2001-06-26T01:08:56+04:00", "utc": "2001-06-25T21:08:56Z", "ms": 993503335969.7021 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-06-25", "window": { "start": { "local": "2001-06-25T12:42:32+04:00", "utc": "2001-06-25T08:42:32Z", "ms": 993458552151.4285 }, "end": { "local": "2001-06-25T13:30:32+04:00", "utc": "2001-06-25T09:30:32Z", "ms": 993461432151.4285 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-06-26", "window": { "start": { "local": "2001-06-26T12:42:44+04:00", "utc": "2001-06-26T08:42:44Z", "ms": 993544964421.1206 }, "end": { "local": "2001-06-26T13:30:44+04:00", "utc": "2001-06-26T09:30:44Z", "ms": 993547844421.1206 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 04:01 on Mon 25 Jun to 01:09 on Tue 26 Jun.", "fact": "2001-06-25T00:01:10Z → 2001-06-25T21:08:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 25th, 12:43–13:31 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31282 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Erbil, 2001: Monday 25 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": "2001-06-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-25", "confidence": "determinate" } ], "quote": "In Erbil, Skanda Pañcamī 2001 falls on Monday 25 June. Pañcamī runs from 04:01 on Mon 25 Jun to 01:09 on Tue 26 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-06-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24412, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2001-06-26T22:32:47+04:00", "utc": "2001-06-26T18:32:47Z", "ms": 993580367271.6885 }, "end": { "local": "2001-06-27T20:17:48+04:00", "utc": "2001-06-27T16:17:48Z", "ms": 993658668402.2267 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-26T22:32:47+04:00", "utc": "2001-06-26T18:32:47Z", "ms": 993580367271.6885 }, "end": { "local": "2001-06-27T20:17:48+04:00", "utc": "2001-06-27T16:17:48Z", "ms": 993658668402.2267 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-06-26", "window": { "start": { "local": "2001-06-26T12:42:44+04:00", "utc": "2001-06-26T08:42:44Z", "ms": 993544964421.1206 }, "end": { "local": "2001-06-26T13:30:44+04:00", "utc": "2001-06-26T09:30:44Z", "ms": 993547844421.1206 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-06-27", "window": { "start": { "local": "2001-06-27T12:42:57+04:00", "utc": "2001-06-27T08:42:57Z", "ms": 993631376521.0061 }, "end": { "local": "2001-06-27T13:30:57+04:00", "utc": "2001-06-27T09:30:57Z", "ms": 993634256521.0061 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 22:33 on Tue 26 Jun to 20:18 on Wed 27 Jun.", "fact": "2001-06-26T18:32:47Z → 2001-06-27T16:17:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 26th, 12:43–13:31 on the 27th.", "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 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 24412 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Erbil, 2001: Wednesday 27 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": "2001-06-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-06-27", "confidence": "determinate" } ], "quote": "In Erbil, Vivasvat Saptamī 2001 falls on Wednesday 27 June. Saptamī runs from 22:33 on Tue 26 Jun to 20:18 on Wed 27 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-07-01", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35988, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-06-30T16:13:06+04:00", "utc": "2001-06-30T12:13:06Z", "ms": 993903186087.9103 }, "end": { "local": "2001-07-01T15:50:18+04:00", "utc": "2001-07-01T11:50:18Z", "ms": 993988218377.874 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-06-30T16:13:06+04:00", "utc": "2001-06-30T12:13:06Z", "ms": 993903186087.9103 }, "end": { "local": "2001-07-01T15:50:18+04:00", "utc": "2001-07-01T11:50:18Z", "ms": 993988218377.874 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-06-30", "window": { "start": { "local": "2001-06-30T05:50:05+04:00", "utc": "2001-06-30T01:50:05Z", "ms": 993865804602.1267 }, "end": { "local": "2001-06-30T05:50:05+04:00", "utc": "2001-06-30T01:50:05Z", "ms": 993865804602.1267 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-07-01", "window": { "start": { "local": "2001-07-01T05:50:30+04:00", "utc": "2001-07-01T01:50:30Z", "ms": 993952230408.9729 }, "end": { "local": "2001-07-01T05:50:30+04:00", "utc": "2001-07-01T01:50:30Z", "ms": 993952230408.9729 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:13 on Sat 30 Jun to 15:50 on Sun 1 Jul.", "fact": "2001-06-30T12:13:06Z → 2001-07-01T11:50:18Z" }, { "step": "kaala", "text": "Sunrise is at 05:50 on the 30th and 05:51 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 30th and is on the 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 35988 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Erbil, 2001: Sunday 1 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": "2001-07-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-01", "confidence": "determinate" } ], "quote": "In Erbil, Hariśayanī Ekādaśī 2001 falls on Sunday 1 July. Ekādaśī runs from 16:13 on Sat 30 Jun to 15:50 on Sun 1 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-07-01", "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/2001/pradosha-vrata?on=2001-07-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13918, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-07-02T15:57:10+04:00", "utc": "2001-07-02T11:57:10Z", "ms": 994075029667.15 }, "end": { "local": "2001-07-03T16:32:45+04:00", "utc": "2001-07-03T12:32:45Z", "ms": 994163565337.0442 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-07-02T15:57:10+04:00", "utc": "2001-07-02T11:57:10Z", "ms": 994075029667.15 }, "end": { "local": "2001-07-03T16:32:45+04:00", "utc": "2001-07-03T12:32:45Z", "ms": 994163565337.0442 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-07-02", "window": { "start": { "local": "2001-07-02T20:24:50+04:00", "utc": "2001-07-02T16:24:50Z", "ms": 994091090000.5616 }, "end": { "local": "2001-07-02T21:40:23+04:00", "utc": "2001-07-02T17:40:23Z", "ms": 994095622747.4108 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "2001-07-03", "window": { "start": { "local": "2001-07-03T20:24:43+04:00", "utc": "2001-07-03T16:24:43Z", "ms": 994177483098.6069 }, "end": { "local": "2001-07-03T21:40:21+04:00", "utc": "2001-07-03T17:40:21Z", "ms": 994182020675.3583 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:57 on Mon 2 Jul to 16:33 on Tue 3 Jul.", "fact": "2001-07-02T11:57:10Z → 2001-07-03T12:32:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:25–21:40 on the 2nd, 20:25–21:40 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 76 of 76 minutes on the 2nd and 0 of 76 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 13918 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Monday 2 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": "2001-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-02", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Monday 2 July. Trayodaśī runs from 15:57 on Mon 2 Jul to 16:33 on Tue 3 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-07-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-04", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 336, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-07-04T17:35:38+04:00", "utc": "2001-07-04T13:35:38Z", "ms": 994253738417.0208 }, "end": { "local": "2001-07-05T19:03:46+04:00", "utc": "2001-07-05T15:03:46Z", "ms": 994345426418.7457 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-07-04T17:35:38+04:00", "utc": "2001-07-04T13:35:38Z", "ms": 994253738417.0208 }, "end": { "local": "2001-07-05T19:03:46+04:00", "utc": "2001-07-05T15:03:46Z", "ms": 994345426418.7457 } }, "kaala": "sayahna", "days": [ { "local_date": "2001-07-04", "window": { "start": { "local": "2001-07-04T17:30:03+04:00", "utc": "2001-07-04T13:30:03Z", "ms": 994253402539.5879 }, "end": { "local": "2001-07-04T20:24:34+04:00", "utc": "2001-07-04T16:24:34Z", "ms": 994263874443.4243 } }, "covered_min": 169, "window_min": 175, "qualifies": true }, { "local_date": "2001-07-05", "window": { "start": { "local": "2001-07-05T17:30:00+04:00", "utc": "2001-07-05T13:30:00Z", "ms": 994339800298.7145 }, "end": { "local": "2001-07-05T20:24:24+04:00", "utc": "2001-07-05T16:24:24Z", "ms": 994350264034.848 } }, "covered_min": 94, "window_min": 174, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:36 on Wed 4 Jul to 19:04 on Thu 5 Jul.", "fact": "2001-07-04T13:35:38Z → 2001-07-05T15:03:46Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:30–20:25 on the 4th, 17:30–20:24 on the 5th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 169 of 175 minutes on the 4th and 94 of 174 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 336 s" }, { "step": "ruling", "text": "Kokilā Vrata, Erbil, 2001: Wednesday 4 July.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2001-07-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-04", "confidence": "boundary" } ], "quote": "In Erbil, Kokilā Vrata 2001 falls on Wednesday 4 July. Pūrṇimā runs from 17:36 on Wed 4 Jul to 19:04 on Thu 5 Jul and covers 169 of 175 minutes of sāyāhna that late afternoon. It also reaches the next late afternoon for 94 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/2001/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/2001/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4838, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-07-04T17:35:38+04:00", "utc": "2001-07-04T13:35:38Z", "ms": 994253738417.0208 }, "end": { "local": "2001-07-05T19:03:46+04:00", "utc": "2001-07-05T15:03:46Z", "ms": 994345426418.7457 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-07-04T17:35:38+04:00", "utc": "2001-07-04T13:35:38Z", "ms": 994253738417.0208 }, "end": { "local": "2001-07-05T19:03:46+04:00", "utc": "2001-07-05T15:03:46Z", "ms": 994345426418.7457 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-07-04", "window": { "start": { "local": "2001-07-04T20:24:34+04:00", "utc": "2001-07-04T16:24:34Z", "ms": 994263874443.4243 }, "end": { "local": "2001-07-04T21:40:17+04:00", "utc": "2001-07-04T17:40:17Z", "ms": 994268417231.5251 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "2001-07-05", "window": { "start": { "local": "2001-07-05T20:24:24+04:00", "utc": "2001-07-05T16:24:24Z", "ms": 994350264034.848 }, "end": { "local": "2001-07-05T21:40:12+04:00", "utc": "2001-07-05T17:40:12Z", "ms": 994354812411.4457 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:36 on Wed 4 Jul to 19:04 on Thu 5 Jul.", "fact": "2001-07-04T13:35:38Z → 2001-07-05T15:03:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:25–21:40 on the 4th, 20:24–21:40 on the 5th.", "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 4th and 0 of 76 on the 5th.", "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 4838 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Erbil, 2001: Wednesday 4 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": "2001-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-04", "confidence": "determinate" } ], "quote": "In Erbil, Śiva Śayanotsava 2001 falls on Wednesday 4 July. Pūrṇimā runs from 17:36 on Wed 4 Jul to 19:04 on Thu 5 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31752, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-07-04T17:35:38+04:00", "utc": "2001-07-04T13:35:38Z", "ms": 994253738417.0208 }, "end": { "local": "2001-07-05T19:03:46+04:00", "utc": "2001-07-05T15:03:46Z", "ms": 994345426418.7457 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-07-04T17:35:38+04:00", "utc": "2001-07-04T13:35:38Z", "ms": 994253738417.0208 }, "end": { "local": "2001-07-05T19:03:46+04:00", "utc": "2001-07-05T15:03:46Z", "ms": 994345426418.7457 } }, "kaala": "udaya-3", "days": [ { "local_date": "2001-07-04", "window": { "start": { "local": "2001-07-04T05:51:55+04:00", "utc": "2001-07-04T01:51:55Z", "ms": 994211514924.2422 }, "end": { "local": "2001-07-04T08:46:27+04:00", "utc": "2001-07-04T04:46:27Z", "ms": 994221986828.0786 } }, "covered_min": 0, "window_min": 175, "qualifies": false }, { "local_date": "2001-07-05", "window": { "start": { "local": "2001-07-05T05:52:25+04:00", "utc": "2001-07-05T01:52:25Z", "ms": 994297945354.1805 }, "end": { "local": "2001-07-05T08:46:49+04:00", "utc": "2001-07-05T04:46:49Z", "ms": 994308409090.3141 } }, "covered_min": 174, "window_min": 174, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:36 on Wed 4 Jul to 19:04 on Thu 5 Jul.", "fact": "2001-07-04T13:35:38Z → 2001-07-05T15:03:46Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:52–08:46 on the 4th, 05:52–08:47 on the 5th.", "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 175 minutes on the 4th and 174 of 174 on the 5th.", "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 31752 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Erbil, 2001: Thursday 5 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": "2001-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-05", "confidence": "determinate" } ], "quote": "In Erbil, Vyāsa Pūjā 2001 falls on Thursday 5 July. Pūrṇimā runs from 17:36 on Wed 4 Jul to 19:04 on Thu 5 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14604, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-07-04T17:35:38+04:00", "utc": "2001-07-04T13:35:38Z", "ms": 994253738417.0208 }, "end": { "local": "2001-07-05T19:03:46+04:00", "utc": "2001-07-05T15:03:46Z", "ms": 994345426418.7457 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2001-07-04T17:35:38+04:00", "utc": "2001-07-04T13:35:38Z", "ms": 994253738417.0208 }, "end": { "local": "2001-07-05T19:03:46+04:00", "utc": "2001-07-05T15:03:46Z", "ms": 994345426418.7457 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-07-04", "window": { "start": { "local": "2001-07-04T12:44:15+04:00", "utc": "2001-07-04T08:44:15Z", "ms": 994236254683.8333 }, "end": { "local": "2001-07-04T13:32:15+04:00", "utc": "2001-07-04T09:32:15Z", "ms": 994239134683.8333 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-07-05", "window": { "start": { "local": "2001-07-05T12:44:25+04:00", "utc": "2001-07-05T08:44:25Z", "ms": 994322664694.5143 }, "end": { "local": "2001-07-05T13:32:25+04:00", "utc": "2001-07-05T09:32:25Z", "ms": 994325544694.5143 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:36 on Wed 4 Jul to 19:04 on Thu 5 Jul.", "fact": "2001-07-04T13:35:38Z → 2001-07-05T15:03:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:44–13:32 on the 4th, 12:44–13:32 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14604 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Erbil, 2001: Thursday 5 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": "2001-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-05", "confidence": "determinate" } ], "quote": "In Erbil, Guru Pūrṇimā 2001 falls on Thursday 5 July. Pūrṇimā runs from 17:36 on Wed 4 Jul to 19:04 on Thu 5 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-06", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1254, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2001-07-06T20:54:18+04:00", "utc": "2001-07-06T16:54:18Z", "ms": 994438457658.0377 }, "end": { "local": "2001-07-07T23:03:09+04:00", "utc": "2001-07-07T19:03:09Z", "ms": 994532589246.5508 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-06T20:54:18+04:00", "utc": "2001-07-06T16:54:18Z", "ms": 994438457658.0377 }, "end": { "local": "2001-07-07T23:03:09+04:00", "utc": "2001-07-07T19:03:09Z", "ms": 994532589246.5508 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-07-06", "window": { "start": { "local": "2001-07-06T21:15:11+04:00", "utc": "2001-07-06T17:15:11Z", "ms": 994439711315.7451 }, "end": { "local": "2001-07-06T21:15:11+04:00", "utc": "2001-07-06T17:15:11Z", "ms": 994439711315.7451 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-07-07", "window": { "start": { "local": "2001-07-07T21:56:57+04:00", "utc": "2001-07-07T17:56:57Z", "ms": 994528616812.8986 }, "end": { "local": "2001-07-07T21:56:57+04:00", "utc": "2001-07-07T17:56:57Z", "ms": 994528616812.8986 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 20:54 on Fri 6 Jul to 23:03 on Sat 7 Jul.", "fact": "2001-07-06T16:54:18Z → 2001-07-07T19:03:09Z" }, { "step": "kaala", "text": "Moonrise is at 21:15 on the 6th and 21:57 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both moonrises qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1254 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Erbil, 2001: Friday 6 July.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2001-07-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-06", "confidence": "boundary" } ], "quote": "In Erbil, Aśūnya Śayana Vrata (Āṣāḍha) 2001 falls on Friday 6 July. Dvitīyā runs from 20:54 on Fri 6 Jul to 23:03 on Sat 7 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-07-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10266, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-07-09T01:24:43+04:00", "utc": "2001-07-08T21:24:43Z", "ms": 994627483206.8318 }, "end": { "local": "2001-07-10T03:51:31+04:00", "utc": "2001-07-09T23:51:31Z", "ms": 994722691029.0874 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-09T01:24:43+04:00", "utc": "2001-07-08T21:24:43Z", "ms": 994627483206.8318 }, "end": { "local": "2001-07-10T03:51:31+04:00", "utc": "2001-07-09T23:51:31Z", "ms": 994722691029.0874 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-07-08", "window": { "start": { "local": "2001-07-08T22:33:37+04:00", "utc": "2001-07-08T18:33:37Z", "ms": 994617217268.1821 }, "end": { "local": "2001-07-08T22:33:37+04:00", "utc": "2001-07-08T18:33:37Z", "ms": 994617217268.1821 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-07-09", "window": { "start": { "local": "2001-07-09T23:06:10+04:00", "utc": "2001-07-09T19:06:10Z", "ms": 994705570310.9965 }, "end": { "local": "2001-07-09T23:06:10+04:00", "utc": "2001-07-09T19:06:10Z", "ms": 994705570310.9965 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:25 on Mon 9 Jul to 03:52 on Tue 10 Jul.", "fact": "2001-07-08T21:24:43Z → 2001-07-09T23:51:31Z" }, { "step": "kaala", "text": "Moonrise is at 22:34 on the 8th and 23:06 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 8th and is 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 10266 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Monday 9 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": "2001-07-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-09", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Monday 9 July. Caturthī runs from 01:25 on Mon 9 Jul to 03:52 on Tue 10 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-07-09", "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/2001/ekadashi?on=2001-07-17", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15529, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-07-16T11:23:20+04:00", "utc": "2001-07-16T07:23:20Z", "ms": 995268199690.144 }, "end": { "local": "2001-07-17T10:18:34+04:00", "utc": "2001-07-17T06:18:34Z", "ms": 995350714133.3796 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-16T11:23:20+04:00", "utc": "2001-07-16T07:23:20Z", "ms": 995268199690.144 }, "end": { "local": "2001-07-17T10:18:34+04:00", "utc": "2001-07-17T06:18:34Z", "ms": 995350714133.3796 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-07-16", "window": { "start": { "local": "2001-07-16T05:59:04+04:00", "utc": "2001-07-16T01:59:04Z", "ms": 995248743706.5306 }, "end": { "local": "2001-07-16T05:59:04+04:00", "utc": "2001-07-16T01:59:04Z", "ms": 995248743706.5306 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-07-17", "window": { "start": { "local": "2001-07-17T05:59:45+04:00", "utc": "2001-07-17T01:59:45Z", "ms": 995335184809.9336 }, "end": { "local": "2001-07-17T05:59:45+04:00", "utc": "2001-07-17T01:59:45Z", "ms": 995335184809.9336 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:23 on Mon 16 Jul to 10:19 on Tue 17 Jul.", "fact": "2001-07-16T07:23:20Z → 2001-07-17T06:18:34Z" }, { "step": "kaala", "text": "Sunrise is at 05:59 on the 16th and 06:00 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15529 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Erbil, 2001: Tuesday 17 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": "2001-07-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-17", "confidence": "determinate" } ], "quote": "In Erbil, Kāmikā Ekādaśī 2001 falls on Tuesday 17 July. Ekādaśī runs from 11:23 on Mon 16 Jul to 10:19 on Tue 17 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-07-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-07-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30376, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-07-18T08:30:10+04:00", "utc": "2001-07-18T04:30:10Z", "ms": 995430609971.4834 }, "end": { "local": "2001-07-19T06:03:20+04:00", "utc": "2001-07-19T02:03:20Z", "ms": 995508199773.6665 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-18T08:30:10+04:00", "utc": "2001-07-18T04:30:10Z", "ms": 995430609971.4834 }, "end": { "local": "2001-07-19T06:03:20+04:00", "utc": "2001-07-19T02:03:20Z", "ms": 995508199773.6665 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-07-17", "window": { "start": { "local": "2001-07-17T20:20:04+04:00", "utc": "2001-07-17T16:20:04Z", "ms": 995386803723.0085 }, "end": { "local": "2001-07-17T21:37:27+04:00", "utc": "2001-07-17T17:37:27Z", "ms": 995391446769.4899 } }, "covered_min": 0, "window_min": 77, "qualifies": false }, { "local_date": "2001-07-18", "window": { "start": { "local": "2001-07-18T20:19:31+04:00", "utc": "2001-07-18T16:19:31Z", "ms": 995473170961.9142 }, "end": { "local": "2001-07-18T21:37:04+04:00", "utc": "2001-07-18T17:37:04Z", "ms": 995477824027.3383 } }, "covered_min": 78, "window_min": 78, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:30 on Wed 18 Jul to 06:03 on Thu 19 Jul.", "fact": "2001-07-18T04:30:10Z → 2001-07-19T02:03:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:20–21:37 on the 17th, 20:20–21:37 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 77 minutes on the 17th and 78 of 78 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 30376 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Wednesday 18 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": "2001-07-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-18", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Wednesday 18 July. Trayodaśī runs from 08:30 on Wed 18 Jul to 06:03 on Thu 19 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-07-18", "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/2001/shivaratri?on=2001-07-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5450, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-07-19T06:03:20+04:00", "utc": "2001-07-19T02:03:20Z", "ms": 995508199773.6665 }, "end": { "local": "2001-07-20T03:05:14+04:00", "utc": "2001-07-19T23:05:14Z", "ms": 995583914187.9492 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-19T06:03:20+04:00", "utc": "2001-07-19T02:03:20Z", "ms": 995508199773.6665 }, "end": { "local": "2001-07-20T03:05:14+04:00", "utc": "2001-07-19T23:05:14Z", "ms": 995583914187.9492 } }, "kaala": "nishita", "days": [ { "local_date": "2001-07-18", "window": { "start": { "local": "2001-07-19T00:46:20+04:00", "utc": "2001-07-18T20:46:20Z", "ms": 995489179957.2544 }, "end": { "local": "2001-07-19T01:34:20+04:00", "utc": "2001-07-18T21:34:20Z", "ms": 995492059957.2544 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-07-19", "window": { "start": { "local": "2001-07-20T00:46:24+04:00", "utc": "2001-07-19T20:46:24Z", "ms": 995575584227.9343 }, "end": { "local": "2001-07-20T01:34:24+04:00", "utc": "2001-07-19T21:34:24Z", "ms": 995578464227.9343 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:03 on Thu 19 Jul to 03:05 on Fri 20 Jul.", "fact": "2001-07-19T02:03:20Z → 2001-07-19T23:05:14Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:46–01:34 on the 18th, 00:46–01:34 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 5450 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Thursday 19 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": "2001-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-19", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Thursday 19 July. Caturdaśī runs from 06:03 on Thu 19 Jul to 03:05 on Fri 20 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-07-19", "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/2001/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 852, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2001-07-22T16:32:17+04:00", "utc": "2001-07-22T12:32:17Z", "ms": 995805136923.4675 }, "end": { "local": "2001-07-23T13:00:25+04:00", "utc": "2001-07-23T09:00:25Z", "ms": 995878824800.739 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-22T16:32:17+04:00", "utc": "2001-07-22T12:32:17Z", "ms": 995805136923.4675 }, "end": { "local": "2001-07-23T13:00:25+04:00", "utc": "2001-07-23T09:00:25Z", "ms": 995878824800.739 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-07-22", "window": { "start": { "local": "2001-07-22T12:46:11+04:00", "utc": "2001-07-22T08:46:11Z", "ms": 995791571427.4381 }, "end": { "local": "2001-07-22T13:34:11+04:00", "utc": "2001-07-22T09:34:11Z", "ms": 995794451427.4381 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-07-23", "window": { "start": { "local": "2001-07-23T12:46:13+04:00", "utc": "2001-07-23T08:46:13Z", "ms": 995877973185.0631 }, "end": { "local": "2001-07-23T13:34:13+04:00", "utc": "2001-07-23T09:34:13Z", "ms": 995880853185.0631 } }, "covered_min": 14, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 16:32 on Sun 22 Jul to 13:00 on Mon 23 Jul.", "fact": "2001-07-22T12:32:17Z → 2001-07-23T09:00:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 22nd, 12:46–13:34 on the 23rd.", "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 22nd and 14 of 48 on the 23rd.", "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 852 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Erbil, 2001: Monday 23 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": "2001-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-23", "confidence": "determinate" } ], "quote": "In Erbil, Madhusravā Tṛtīyā (Teej) 2001 falls on Monday 23 July. Tṛtīyā runs from 16:32 on Sun 22 Jul to 13:00 on Mon 23 Jul and covers 14 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-07-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 852, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-07-23T13:00:25+04:00", "utc": "2001-07-23T09:00:25Z", "ms": 995878824800.739 }, "end": { "local": "2001-07-24T09:43:55+04:00", "utc": "2001-07-24T05:43:55Z", "ms": 995953435142.5002 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-23T13:00:25+04:00", "utc": "2001-07-23T09:00:25Z", "ms": 995878824800.739 }, "end": { "local": "2001-07-24T09:43:55+04:00", "utc": "2001-07-24T05:43:55Z", "ms": 995953435142.5002 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-07-23", "window": { "start": { "local": "2001-07-23T12:46:13+04:00", "utc": "2001-07-23T08:46:13Z", "ms": 995877973185.0631 }, "end": { "local": "2001-07-23T13:34:13+04:00", "utc": "2001-07-23T09:34:13Z", "ms": 995880853185.0631 } }, "covered_min": 34, "window_min": 48, "qualifies": true }, { "local_date": "2001-07-24", "window": { "start": { "local": "2001-07-24T12:46:14+04:00", "utc": "2001-07-24T08:46:14Z", "ms": 995964374354.0505 }, "end": { "local": "2001-07-24T13:34:14+04:00", "utc": "2001-07-24T09:34:14Z", "ms": 995967254354.0505 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:00 on Mon 23 Jul to 09:44 on Tue 24 Jul.", "fact": "2001-07-23T09:00:25Z → 2001-07-24T05:43:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 23rd, 12:46–13:34 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 34 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 852 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Monday 23 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": "2001-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-23", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Monday 23 July. Caturthī runs from 13:00 on Mon 23 Jul to 09:44 on Tue 24 Jul and covers 34 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-07-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10939, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2001-07-24T09:43:55+04:00", "utc": "2001-07-24T05:43:55Z", "ms": 995953435142.5002 }, "end": { "local": "2001-07-25T06:51:21+04:00", "utc": "2001-07-25T02:51:21Z", "ms": 996029481231.8394 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-24T09:43:55+04:00", "utc": "2001-07-24T05:43:55Z", "ms": 995953435142.5002 }, "end": { "local": "2001-07-25T06:51:21+04:00", "utc": "2001-07-25T02:51:21Z", "ms": 996029481231.8394 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-07-24", "window": { "start": { "local": "2001-07-24T12:46:14+04:00", "utc": "2001-07-24T08:46:14Z", "ms": 995964374354.0505 }, "end": { "local": "2001-07-24T13:34:14+04:00", "utc": "2001-07-24T09:34:14Z", "ms": 995967254354.0505 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-07-25", "window": { "start": { "local": "2001-07-25T12:46:15+04:00", "utc": "2001-07-25T08:46:15Z", "ms": 996050774924.927 }, "end": { "local": "2001-07-25T13:34:15+04:00", "utc": "2001-07-25T09:34:15Z", "ms": 996053654924.927 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 09:44 on Tue 24 Jul to 06:51 on Wed 25 Jul.", "fact": "2001-07-24T05:43:55Z → 2001-07-25T02:51:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 24th, 12:46–13:34 on the 25th.", "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 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10939 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Erbil, 2001: Tuesday 24 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": "2001-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-24", "confidence": "determinate" } ], "quote": "In Erbil, Nāga Pañcamī 2001 falls on Tuesday 24 July. Pañcamī runs from 09:44 on Tue 24 Jul to 06:51 on Wed 25 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-07-30", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13488, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-07-30T01:33:46+04:00", "utc": "2001-07-29T21:33:46Z", "ms": 996442426025.9877 }, "end": { "local": "2001-07-31T02:25:24+04:00", "utc": "2001-07-30T22:25:24Z", "ms": 996531924256.0852 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-30T01:33:46+04:00", "utc": "2001-07-29T21:33:46Z", "ms": 996442426025.9877 }, "end": { "local": "2001-07-31T02:25:24+04:00", "utc": "2001-07-30T22:25:24Z", "ms": 996531924256.0852 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-07-30", "window": { "start": { "local": "2001-07-30T06:09:25+04:00", "utc": "2001-07-30T02:09:25Z", "ms": 996458965049.0468 }, "end": { "local": "2001-07-30T06:09:25+04:00", "utc": "2001-07-30T02:09:25Z", "ms": 996458965049.0468 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-07-31", "window": { "start": { "local": "2001-07-31T06:10:12+04:00", "utc": "2001-07-31T02:10:12Z", "ms": 996545412002.3479 }, "end": { "local": "2001-07-31T06:10:12+04:00", "utc": "2001-07-31T02:10:12Z", "ms": 996545412002.3479 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:34 on Mon 30 Jul to 02:25 on Tue 31 Jul.", "fact": "2001-07-29T21:33:46Z → 2001-07-30T22:25:24Z" }, { "step": "kaala", "text": "Sunrise is at 06:09 on the 30th and 06:10 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13488 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Erbil, 2001: Monday 30 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": "2001-07-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-30", "confidence": "determinate" } ], "quote": "In Erbil, Putradā Ekādaśī 2001 falls on Monday 30 July. Ekādaśī runs from 01:34 on Mon 30 Jul to 02:25 on Tue 31 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-07-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-07-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32319, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2001-07-31T02:25:24+04:00", "utc": "2001-07-30T22:25:24Z", "ms": 996531924256.0852 }, "end": { "local": "2001-08-01T03:47:23+04:00", "utc": "2001-07-31T23:47:23Z", "ms": 996623242970.0425 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-07-31T02:25:24+04:00", "utc": "2001-07-30T22:25:24Z", "ms": 996531924256.0852 }, "end": { "local": "2001-08-01T03:47:23+04:00", "utc": "2001-07-31T23:47:23Z", "ms": 996623242970.0425 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-07-31", "window": { "start": { "local": "2001-07-31T12:46:06+04:00", "utc": "2001-07-31T08:46:06Z", "ms": 996569165524.4214 }, "end": { "local": "2001-07-31T13:34:06+04:00", "utc": "2001-07-31T09:34:06Z", "ms": 996572045524.4214 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-08-01", "window": { "start": { "local": "2001-08-01T12:46:02+04:00", "utc": "2001-08-01T08:46:02Z", "ms": 996655561811.1614 }, "end": { "local": "2001-08-01T13:34:02+04:00", "utc": "2001-08-01T09:34:02Z", "ms": 996658441811.1614 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 02:25 on Tue 31 Jul to 03:47 on Wed 1 Aug.", "fact": "2001-07-30T22:25:24Z → 2001-07-31T23:47:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 31st, 12:46–13:34 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 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: purvaviddha → only-day · margin 32319 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Erbil, 2001: Tuesday 31 July.", "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": "2001-07-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-07-31", "confidence": "determinate" } ], "quote": "In Erbil, Dāmodara Dvādaśī 2001 falls on Tuesday 31 July. Dvādaśī runs from 02:25 on Tue 31 Jul to 03:47 on Wed 1 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/pradosha-vrata?on=2001-08-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22636, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-08-01T03:47:23+04:00", "utc": "2001-07-31T23:47:23Z", "ms": 996623242970.0425 }, "end": { "local": "2001-08-02T05:33:43+04:00", "utc": "2001-08-02T01:33:43Z", "ms": 996716023283.9824 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-08-01T03:47:23+04:00", "utc": "2001-07-31T23:47:23Z", "ms": 996623242970.0425 }, "end": { "local": "2001-08-02T05:33:43+04:00", "utc": "2001-08-02T01:33:43Z", "ms": 996716023283.9824 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-07-31", "window": { "start": { "local": "2001-07-31T20:09:59+04:00", "utc": "2001-07-31T16:09:59Z", "ms": 996595799046.4949 }, "end": { "local": "2001-07-31T21:30:07+04:00", "utc": "2001-07-31T17:30:07Z", "ms": 996600607060.0261 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "2001-08-01", "window": { "start": { "local": "2001-08-01T20:09:04+04:00", "utc": "2001-08-01T16:09:04Z", "ms": 996682144474.3436 }, "end": { "local": "2001-08-01T21:29:26+04:00", "utc": "2001-08-01T17:29:26Z", "ms": 996686966073.1113 } }, "covered_min": 80, "window_min": 80, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:47 on Wed 1 Aug to 05:34 on Thu 2 Aug.", "fact": "2001-07-31T23:47:23Z → 2001-08-02T01:33:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:10–21:30 on the 31st, 20:09–21:29 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 80 minutes on the 31st and 80 of 80 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 22636 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Wednesday 1 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-08-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-01", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Wednesday 1 August. Trayodaśī runs from 03:47 on Wed 1 Aug to 05:34 on Thu 2 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-08-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-03", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 13343, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-08-03T07:38:24+04:00", "utc": "2001-08-03T03:38:24Z", "ms": 996809904017.8273 }, "end": { "local": "2001-08-04T09:55:44+04:00", "utc": "2001-08-04T05:55:44Z", "ms": 996904544041.09 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2001-08-03T20:45:50+04:00", "utc": "2001-08-03T16:45:50Z", "ms": 996857149512.0214 }, "end": { "local": "2001-08-04T09:55:44+04:00", "utc": "2001-08-04T05:55:44Z", "ms": 996904544041.09 } }, "kaala": "day", "days": [ { "local_date": "2001-08-03", "window": { "start": { "local": "2001-08-03T06:12:34+04:00", "utc": "2001-08-03T02:12:34Z", "ms": 996804753933.8336 }, "end": { "local": "2001-08-04T06:13:22+04:00", "utc": "2001-08-04T02:13:22Z", "ms": 996891201535.9099 } }, "covered_min": 568, "window_min": 1441, "qualifies": true }, { "local_date": "2001-08-04", "window": { "start": { "local": "2001-08-04T06:13:22+04:00", "utc": "2001-08-04T02:13:22Z", "ms": 996891201535.9099 }, "end": { "local": "2001-08-05T06:14:09+04:00", "utc": "2001-08-05T02:14:09Z", "ms": 996977649254.3204 } }, "covered_min": 222, "window_min": 1441, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:38 on Fri 3 Aug to 09:56 on Sat 4 Aug. Its second half begins at 20:46 on Fri 3 Aug.", "fact": "2001-08-03T03:38:24Z → 2001-08-04T05:55:44Z · second half from 2001-08-03T16:45:50Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:13 on the 3rd, and from 06:13 on the 4th.", "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 568 of 1441 minutes on the 3rd and 222 of 1441 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 13343 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Erbil, 2001: Friday 3 August.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-08-03", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-03", "confidence": "boundary" } ], "quote": "In Erbil, Rakṣā Bandhana (Rakhi) 2001 falls on Friday 3 August. The second half of Pūrṇimā runs from 20:46 on Fri 3 Aug to 09:56 on Sat 4 Aug and falls on two days: 568 minutes of it on the 3rd, 222 on the 4th; the rule does not say which to take, and the day that holds more of it is ruled: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10203, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-08-03T07:38:24+04:00", "utc": "2001-08-03T03:38:24Z", "ms": 996809904017.8273 }, "end": { "local": "2001-08-04T09:55:44+04:00", "utc": "2001-08-04T05:55:44Z", "ms": 996904544041.09 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2001-08-03T07:38:24+04:00", "utc": "2001-08-03T03:38:24Z", "ms": 996809904017.8273 }, "end": { "local": "2001-08-04T09:55:44+04:00", "utc": "2001-08-04T05:55:44Z", "ms": 996904544041.09 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-03", "window": { "start": { "local": "2001-08-03T12:45:53+04:00", "utc": "2001-08-03T08:45:53Z", "ms": 996828352564.7166 }, "end": { "local": "2001-08-03T13:33:53+04:00", "utc": "2001-08-03T09:33:53Z", "ms": 996831232564.7166 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-08-04", "window": { "start": { "local": "2001-08-04T12:45:47+04:00", "utc": "2001-08-04T08:45:47Z", "ms": 996914747040.5591 }, "end": { "local": "2001-08-04T13:33:47+04:00", "utc": "2001-08-04T09:33:47Z", "ms": 996917627040.5591 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:38 on Fri 3 Aug to 09:56 on Sat 4 Aug.", "fact": "2001-08-03T03:38:24Z → 2001-08-04T05:55:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 3rd, 12:46–13:34 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10203 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Erbil, 2001: Friday 3 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": "2001-08-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-03", "confidence": "determinate" } ], "quote": "In Erbil, Ṛṣi Tarpaṇa 2001 falls on Friday 3 August. Pūrṇimā runs from 07:38 on Fri 3 Aug to 09:56 on Sat 4 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24663, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2001-08-05T12:20:22+04:00", "utc": "2001-08-05T08:20:22Z", "ms": 996999622136.6564 }, "end": { "local": "2001-08-06T14:46:58+04:00", "utc": "2001-08-06T10:46:58Z", "ms": 997094818146.1157 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-05T12:20:22+04:00", "utc": "2001-08-05T08:20:22Z", "ms": 996999622136.6564 }, "end": { "local": "2001-08-06T14:46:58+04:00", "utc": "2001-08-06T10:46:58Z", "ms": 997094818146.1157 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-08-05", "window": { "start": { "local": "2001-08-05T21:07:38+04:00", "utc": "2001-08-05T17:07:38Z", "ms": 997031258467.3895 }, "end": { "local": "2001-08-05T21:07:38+04:00", "utc": "2001-08-05T17:07:38Z", "ms": 997031258467.3895 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-08-06", "window": { "start": { "local": "2001-08-06T21:38:01+04:00", "utc": "2001-08-06T17:38:01Z", "ms": 997119481064.1122 }, "end": { "local": "2001-08-06T21:38:01+04:00", "utc": "2001-08-06T17:38:01Z", "ms": 997119481064.1122 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 12:20 on Sun 5 Aug to 14:47 on Mon 6 Aug.", "fact": "2001-08-05T08:20:22Z → 2001-08-06T10:46:58Z" }, { "step": "kaala", "text": "Moonrise is at 21:08 on the 5th and 21:38 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24663 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Erbil, 2001: Sunday 5 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ashunya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 2 Asunyasayana vrata (Dvitiya current at moonrise; if occurs on two successive days, it is to be observed on the second day)." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-08-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-05", "confidence": "determinate" } ], "quote": "In Erbil, Aśūnya Śayana Vrata 2001 falls on Sunday 5 August. Dvitīyā runs from 12:20 on Sun 5 Aug to 14:47 on Mon 6 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4404, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2001-08-06T14:46:58+04:00", "utc": "2001-08-06T10:46:58Z", "ms": 997094818146.1157 }, "end": { "local": "2001-08-07T17:09:46+04:00", "utc": "2001-08-07T13:09:46Z", "ms": 997189785577.7899 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-06T14:46:58+04:00", "utc": "2001-08-06T10:46:58Z", "ms": 997094818146.1157 }, "end": { "local": "2001-08-07T17:09:46+04:00", "utc": "2001-08-07T13:09:46Z", "ms": 997189785577.7899 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-06", "window": { "start": { "local": "2001-08-06T12:45:34+04:00", "utc": "2001-08-06T08:45:34Z", "ms": 997087534218.9097 }, "end": { "local": "2001-08-06T13:33:34+04:00", "utc": "2001-08-06T09:33:34Z", "ms": 997090414218.9097 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-07", "window": { "start": { "local": "2001-08-07T12:45:27+04:00", "utc": "2001-08-07T08:45:27Z", "ms": 997173926934.6858 }, "end": { "local": "2001-08-07T13:33:27+04:00", "utc": "2001-08-07T09:33:27Z", "ms": 997176806934.6858 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 14:47 on Mon 6 Aug to 17:10 on Tue 7 Aug.", "fact": "2001-08-06T10:46:58Z → 2001-08-07T13:09:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 6th, 12:45–13:33 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4404 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Erbil, 2001: Tuesday 7 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": "2001-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-07", "confidence": "determinate" } ], "quote": "In Erbil, Kajjalī Tṛtīyā (Kajari Teej) 2001 falls on Tuesday 7 August. Tṛtīyā runs from 14:47 on Mon 6 Aug to 17:10 on Tue 7 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 475, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-08-07T17:09:46+04:00", "utc": "2001-08-07T13:09:46Z", "ms": 997189785577.7899 }, "end": { "local": "2001-08-08T19:22:09+04:00", "utc": "2001-08-08T15:22:09Z", "ms": 997284129170.3484 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-07T17:09:46+04:00", "utc": "2001-08-07T13:09:46Z", "ms": 997189785577.7899 }, "end": { "local": "2001-08-08T19:22:09+04:00", "utc": "2001-08-08T15:22:09Z", "ms": 997284129170.3484 } }, "kaala": "sayahna", "days": [ { "local_date": "2001-08-07", "window": { "start": { "local": "2001-08-07T17:17:40+04:00", "utc": "2001-08-07T13:17:40Z", "ms": 997190260108.874 }, "end": { "local": "2001-08-07T20:03:09+04:00", "utc": "2001-08-07T16:03:09Z", "ms": 997200188891.6661 } }, "covered_min": 165, "window_min": 165, "qualifies": true }, { "local_date": "2001-08-08", "window": { "start": { "local": "2001-08-08T17:16:59+04:00", "utc": "2001-08-08T13:16:59Z", "ms": 997276618752.2587 }, "end": { "local": "2001-08-08T20:02:05+04:00", "utc": "2001-08-08T16:02:05Z", "ms": 997286525201.8346 } }, "covered_min": 125, "window_min": 165, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:10 on Tue 7 Aug to 19:22 on Wed 8 Aug.", "fact": "2001-08-07T13:09:46Z → 2001-08-08T15:22:09Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:18–20:03 on the 7th, 17:17–20:02 on the 8th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 165 of 165 minutes on the 7th and 125 of 165 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both late afternoons qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 475 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Erbil, 2001: Tuesday 7 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": "2001-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-07", "confidence": "determinate" } ], "quote": "In Erbil, Bahulā Caturthī 2001 falls on Tuesday 7 August. Caturthī runs from 17:10 on Tue 7 Aug to 19:22 on Wed 8 Aug and covers all of sāyāhna that late afternoon. It also reaches the next late afternoon for 125 minutes; by the rule the first late afternoon is taken.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-08-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11450, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-08-07T17:09:46+04:00", "utc": "2001-08-07T13:09:46Z", "ms": 997189785577.7899 }, "end": { "local": "2001-08-08T19:22:09+04:00", "utc": "2001-08-08T15:22:09Z", "ms": 997284129170.3484 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-07T17:09:46+04:00", "utc": "2001-08-07T13:09:46Z", "ms": 997189785577.7899 }, "end": { "local": "2001-08-08T19:22:09+04:00", "utc": "2001-08-08T15:22:09Z", "ms": 997284129170.3484 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-08-07", "window": { "start": { "local": "2001-08-07T22:06:06+04:00", "utc": "2001-08-07T18:06:06Z", "ms": 997207566309.3381 }, "end": { "local": "2001-08-07T22:06:06+04:00", "utc": "2001-08-07T18:06:06Z", "ms": 997207566309.3381 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-08-08", "window": { "start": { "local": "2001-08-08T22:32:59+04:00", "utc": "2001-08-08T18:32:59Z", "ms": 997295578993.5781 }, "end": { "local": "2001-08-08T22:32:59+04:00", "utc": "2001-08-08T18:32:59Z", "ms": 997295578993.5781 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:10 on Tue 7 Aug to 19:22 on Wed 8 Aug.", "fact": "2001-08-07T13:09:46Z → 2001-08-08T15:22:09Z" }, { "step": "kaala", "text": "Moonrise is at 22:06 on the 7th and 22:33 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11450 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Tuesday 7 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": "2001-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-07", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Tuesday 7 August. Caturthī runs from 17:10 on Tue 7 Aug to 19:22 on Wed 8 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-08-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27810, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2001-08-09T21:16:40+04:00", "utc": "2001-08-09T17:16:40Z", "ms": 997377400447.854 }, "end": { "local": "2001-08-10T22:45:19+04:00", "utc": "2001-08-10T18:45:19Z", "ms": 997469119397.3527 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-09T21:16:40+04:00", "utc": "2001-08-09T17:16:40Z", "ms": 997377400447.854 }, "end": { "local": "2001-08-10T22:45:19+04:00", "utc": "2001-08-10T18:45:19Z", "ms": 997469119397.3527 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-09", "window": { "start": { "local": "2001-08-09T12:45:11+04:00", "utc": "2001-08-09T08:45:11Z", "ms": 997346710656.357 }, "end": { "local": "2001-08-09T13:33:11+04:00", "utc": "2001-08-09T09:33:11Z", "ms": 997349590656.357 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-10", "window": { "start": { "local": "2001-08-10T12:45:02+04:00", "utc": "2001-08-10T08:45:02Z", "ms": 997433101678.2499 }, "end": { "local": "2001-08-10T13:33:02+04:00", "utc": "2001-08-10T09:33:02Z", "ms": 997435981678.2499 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 21:17 on Thu 9 Aug to 22:45 on Fri 10 Aug.", "fact": "2001-08-09T17:16:40Z → 2001-08-10T18:45:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 9th, 12:45–13:33 on the 10th.", "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 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27810 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Erbil, 2001: Friday 10 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": "2001-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-10", "confidence": "determinate" } ], "quote": "In Erbil, Hala Ṣaṣṭhī 2001 falls on Friday 10 August. Ṣaṣṭhī runs from 21:17 on Thu 9 Aug to 22:45 on Fri 10 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2988, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-08-11T23:40:21+04:00", "utc": "2001-08-11T19:40:21Z", "ms": 997558821330.8066 }, "end": { "local": "2001-08-12T23:55:18+04:00", "utc": "2001-08-12T19:55:18Z", "ms": 997646117702.5957 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-11T23:40:21+04:00", "utc": "2001-08-11T19:40:21Z", "ms": 997558821330.8066 }, "end": { "local": "2001-08-12T23:55:18+04:00", "utc": "2001-08-12T19:55:18Z", "ms": 997646117702.5957 } }, "kaala": "nishita", "days": [ { "local_date": "2001-08-11", "window": { "start": { "local": "2001-08-12T00:45:16+04:00", "utc": "2001-08-11T20:45:16Z", "ms": 997562716221.7086 }, "end": { "local": "2001-08-12T01:33:16+04:00", "utc": "2001-08-11T21:33:16Z", "ms": 997565596221.7086 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-08-12", "window": { "start": { "local": "2001-08-13T00:45:06+04:00", "utc": "2001-08-12T20:45:06Z", "ms": 997649106162.1812 }, "end": { "local": "2001-08-13T01:33:06+04:00", "utc": "2001-08-12T21:33:06Z", "ms": 997651986162.1812 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 23:40 on Sat 11 Aug to 23:55 on Sun 12 Aug.", "fact": "2001-08-11T19:40:21Z → 2001-08-12T19:55:18Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:45–01:33 on the 11th, 00:45–01:33 on the 12th.", "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 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2988 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Erbil, 2001: Saturday 11 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": "2001-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-11", "confidence": "determinate" } ], "quote": "In Erbil, Janmāṣṭamī (Krishna Janmashtami) 2001 falls on Saturday 11 August. Aṣṭamī runs from 23:40 on Sat 11 Aug to 23:55 on Sun 12 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33138, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2001-08-10T22:45:19+04:00", "utc": "2001-08-10T18:45:19Z", "ms": 997469119397.3527 }, "end": { "local": "2001-08-11T23:40:21+04:00", "utc": "2001-08-11T19:40:21Z", "ms": 997558821330.8066 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-10T22:45:19+04:00", "utc": "2001-08-10T18:45:19Z", "ms": 997469119397.3527 }, "end": { "local": "2001-08-11T23:40:21+04:00", "utc": "2001-08-11T19:40:21Z", "ms": 997558821330.8066 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-10", "window": { "start": { "local": "2001-08-10T12:45:02+04:00", "utc": "2001-08-10T08:45:02Z", "ms": 997433101678.2499 }, "end": { "local": "2001-08-10T13:33:02+04:00", "utc": "2001-08-10T09:33:02Z", "ms": 997435981678.2499 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-11", "window": { "start": { "local": "2001-08-11T12:44:52+04:00", "utc": "2001-08-11T08:44:52Z", "ms": 997519492152.0187 }, "end": { "local": "2001-08-11T13:32:52+04:00", "utc": "2001-08-11T09:32:52Z", "ms": 997522372152.0187 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 22:45 on Fri 10 Aug to 23:40 on Sat 11 Aug.", "fact": "2001-08-10T18:45:19Z → 2001-08-11T19:40:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 10th, 12:45–13:33 on the 11th.", "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 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: purvaviddha → only-day · margin 33138 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Erbil, 2001: Saturday 11 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": "2001-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-11", "confidence": "determinate" } ], "quote": "In Erbil, Śītalā Saptamī 2001 falls on Saturday 11 August. Saptamī runs from 22:45 on Fri 10 Aug to 23:40 on Sat 11 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-08-15", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29485, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-08-14T22:10:45+04:00", "utc": "2001-08-14T18:10:45Z", "ms": 997812644597.4845 }, "end": { "local": "2001-08-15T20:11:30+04:00", "utc": "2001-08-15T16:11:30Z", "ms": 997891890149.3334 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-14T22:10:45+04:00", "utc": "2001-08-14T18:10:45Z", "ms": 997812644597.4845 }, "end": { "local": "2001-08-15T20:11:30+04:00", "utc": "2001-08-15T16:11:30Z", "ms": 997891890149.3334 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-08-15", "window": { "start": { "local": "2001-08-15T06:22:10+04:00", "utc": "2001-08-15T02:22:10Z", "ms": 997842129774.485 }, "end": { "local": "2001-08-15T06:22:10+04:00", "utc": "2001-08-15T02:22:10Z", "ms": 997842129774.485 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-08-16", "window": { "start": { "local": "2001-08-16T06:22:58+04:00", "utc": "2001-08-16T02:22:58Z", "ms": 997928577896.9752 }, "end": { "local": "2001-08-16T06:22:58+04:00", "utc": "2001-08-16T02:22:58Z", "ms": 997928577896.9752 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:11 on Tue 14 Aug to 20:12 on Wed 15 Aug.", "fact": "2001-08-14T18:10:45Z → 2001-08-15T16:11:30Z" }, { "step": "kaala", "text": "Sunrise is at 06:22 on the 15th and 06:23 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 29485 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Erbil, 2001: Wednesday 15 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": "2001-08-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-15", "confidence": "determinate" } ], "quote": "In Erbil, Ajā Ekādaśī 2001 falls on Wednesday 15 August. Ekādaśī runs from 22:11 on Tue 14 Aug to 20:12 on Wed 15 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-08-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-08-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8417, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-08-16T17:32:39+04:00", "utc": "2001-08-16T13:32:39Z", "ms": 997968758715.8007 }, "end": { "local": "2001-08-17T14:21:01+04:00", "utc": "2001-08-17T10:21:01Z", "ms": 998043660851.7576 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-16T17:32:39+04:00", "utc": "2001-08-16T13:32:39Z", "ms": 997968758715.8007 }, "end": { "local": "2001-08-17T14:21:01+04:00", "utc": "2001-08-17T10:21:01Z", "ms": 998043660851.7576 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-08-16", "window": { "start": { "local": "2001-08-16T19:52:55+04:00", "utc": "2001-08-16T15:52:55Z", "ms": 997977175297.3773 }, "end": { "local": "2001-08-16T21:17:02+04:00", "utc": "2001-08-16T17:17:02Z", "ms": 997982222055.8542 } }, "covered_min": 84, "window_min": 84, "qualifies": true }, { "local_date": "2001-08-17", "window": { "start": { "local": "2001-08-17T19:51:42+04:00", "utc": "2001-08-17T15:51:42Z", "ms": 998063501928.1039 }, "end": { "local": "2001-08-17T21:16:05+04:00", "utc": "2001-08-17T17:16:05Z", "ms": 998068564874.8494 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:33 on Thu 16 Aug to 14:21 on Fri 17 Aug.", "fact": "2001-08-16T13:32:39Z → 2001-08-17T10:21:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:53–21:17 on the 16th, 19:52–21:16 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 84 of 84 minutes on the 16th and 0 of 84 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8417 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Thursday 16 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": "2001-08-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-16", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Thursday 16 August. Trayodaśī runs from 17:33 on Thu 16 Aug to 14:21 on Fri 17 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-08-16", "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/2001/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19841, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-08-17T14:21:01+04:00", "utc": "2001-08-17T10:21:01Z", "ms": 998043660851.7576 }, "end": { "local": "2001-08-18T10:45:15+04:00", "utc": "2001-08-18T06:45:15Z", "ms": 998117115317.6973 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-17T14:21:01+04:00", "utc": "2001-08-17T10:21:01Z", "ms": 998043660851.7576 }, "end": { "local": "2001-08-18T10:45:15+04:00", "utc": "2001-08-18T06:45:15Z", "ms": 998117115317.6973 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-08-17", "window": { "start": { "local": "2001-08-17T19:51:42+04:00", "utc": "2001-08-17T15:51:42Z", "ms": 998063501928.1039 }, "end": { "local": "2001-08-17T21:16:05+04:00", "utc": "2001-08-17T17:16:05Z", "ms": 998068564874.8494 } }, "covered_min": 84, "window_min": 84, "qualifies": true }, { "local_date": "2001-08-18", "window": { "start": { "local": "2001-08-18T19:50:28+04:00", "utc": "2001-08-18T15:50:28Z", "ms": 998149827616.9944 }, "end": { "local": "2001-08-18T21:15:07+04:00", "utc": "2001-08-18T17:15:07Z", "ms": 998154906869.7196 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:21 on Fri 17 Aug to 10:45 on Sat 18 Aug.", "fact": "2001-08-17T10:21:01Z → 2001-08-18T06:45:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:16 on the 17th, 19:50–21:15 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 84 of 84 minutes on the 17th and 0 of 85 on the 18th.", "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 19841 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Erbil, 2001: Friday 17 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": "2001-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-17", "confidence": "determinate" } ], "quote": "In Erbil, Aghora Caturdaśī 2001 falls on Friday 17 August. Caturdaśī runs from 14:21 on Fri 17 Aug to 10:45 on Sat 18 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/shivaratri?on=2001-08-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33187, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-08-17T14:21:01+04:00", "utc": "2001-08-17T10:21:01Z", "ms": 998043660851.7576 }, "end": { "local": "2001-08-18T10:45:15+04:00", "utc": "2001-08-18T06:45:15Z", "ms": 998117115317.6973 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-17T14:21:01+04:00", "utc": "2001-08-17T10:21:01Z", "ms": 998043660851.7576 }, "end": { "local": "2001-08-18T10:45:15+04:00", "utc": "2001-08-18T06:45:15Z", "ms": 998117115317.6973 } }, "kaala": "nishita", "days": [ { "local_date": "2001-08-16", "window": { "start": { "local": "2001-08-17T00:44:21+04:00", "utc": "2001-08-16T20:44:21Z", "ms": 997994660641.6658 }, "end": { "local": "2001-08-17T01:32:21+04:00", "utc": "2001-08-16T21:32:21Z", "ms": 997997540641.6658 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-17", "window": { "start": { "local": "2001-08-18T00:44:08+04:00", "utc": "2001-08-17T20:44:08Z", "ms": 998081047978.3992 }, "end": { "local": "2001-08-18T01:32:08+04:00", "utc": "2001-08-17T21:32:08Z", "ms": 998083927978.3992 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:21 on Fri 17 Aug to 10:45 on Sat 18 Aug.", "fact": "2001-08-17T10:21:01Z → 2001-08-18T06:45:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:44–01:32 on the 16th, 00:44–01:32 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 33187 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Friday 17 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": "2001-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-17", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Friday 17 August. Caturdaśī runs from 14:21 on Fri 17 Aug to 10:45 on Sat 18 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-08-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20881, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2001-08-19T06:55:16+04:00", "utc": "2001-08-19T02:55:16Z", "ms": 998189716312.279 }, "end": { "local": "2001-08-20T03:01:44+04:00", "utc": "2001-08-19T23:01:44Z", "ms": 998262104194.95 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-19T06:55:16+04:00", "utc": "2001-08-19T02:55:16Z", "ms": 998189716312.279 }, "end": { "local": "2001-08-20T03:01:44+04:00", "utc": "2001-08-19T23:01:44Z", "ms": 998262104194.95 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-19", "window": { "start": { "local": "2001-08-19T12:43:17+04:00", "utc": "2001-08-19T08:43:17Z", "ms": 998210597200.2284 }, "end": { "local": "2001-08-19T13:31:17+04:00", "utc": "2001-08-19T09:31:17Z", "ms": 998213477200.2284 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-08-20", "window": { "start": { "local": "2001-08-20T12:43:03+04:00", "utc": "2001-08-20T08:43:03Z", "ms": 998296983094.9639 }, "end": { "local": "2001-08-20T13:31:03+04:00", "utc": "2001-08-20T09:31:03Z", "ms": 998299863094.9639 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 06:55 on Sun 19 Aug to 03:02 on Mon 20 Aug.", "fact": "2001-08-19T02:55:16Z → 2001-08-19T23:01:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 19th, 12:43–13:31 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20881 s" }, { "step": "ruling", "text": "Rudra Vrata, Erbil, 2001: Sunday 19 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": "2001-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-19", "confidence": "determinate" } ], "quote": "In Erbil, Rudra Vrata 2001 falls on Sunday 19 August. Pratipadā runs from 06:55 on Sun 19 Aug to 03:02 on Mon 20 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22624, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2001-08-20T23:15:39+04:00", "utc": "2001-08-20T19:15:39Z", "ms": 998334938859.9182 }, "end": { "local": "2001-08-21T19:47:53+04:00", "utc": "2001-08-21T15:47:53Z", "ms": 998408872749.3524 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-20T23:15:39+04:00", "utc": "2001-08-20T19:15:39Z", "ms": 998334938859.9182 }, "end": { "local": "2001-08-21T19:47:53+04:00", "utc": "2001-08-21T15:47:53Z", "ms": 998408872749.3524 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-20", "window": { "start": { "local": "2001-08-20T12:43:03+04:00", "utc": "2001-08-20T08:43:03Z", "ms": 998296983094.9639 }, "end": { "local": "2001-08-20T13:31:03+04:00", "utc": "2001-08-20T09:31:03Z", "ms": 998299863094.9639 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-21", "window": { "start": { "local": "2001-08-21T12:42:49+04:00", "utc": "2001-08-21T08:42:49Z", "ms": 998383368513.6816 }, "end": { "local": "2001-08-21T13:30:49+04:00", "utc": "2001-08-21T09:30:49Z", "ms": 998386248513.6816 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 23:16 on Mon 20 Aug to 19:48 on Tue 21 Aug.", "fact": "2001-08-20T19:15:39Z → 2001-08-21T15:47:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 20th, 12:43–13:31 on the 21st.", "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 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22624 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Erbil, 2001: Tuesday 21 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": "2001-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-21", "confidence": "determinate" } ], "quote": "In Erbil, Haritālikā Vrata (Hartalika Teej) 2001 falls on Tuesday 21 August. Tṛtīyā runs from 23:16 on Mon 20 Aug to 19:48 on Tue 21 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11886, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-08-21T19:47:53+04:00", "utc": "2001-08-21T15:47:53Z", "ms": 998408872749.3524 }, "end": { "local": "2001-08-22T16:48:40+04:00", "utc": "2001-08-22T12:48:40Z", "ms": 998484519698.833 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-21T19:47:53+04:00", "utc": "2001-08-21T15:47:53Z", "ms": 998408872749.3524 }, "end": { "local": "2001-08-22T16:48:40+04:00", "utc": "2001-08-22T12:48:40Z", "ms": 998484519698.833 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-21", "window": { "start": { "local": "2001-08-21T12:42:49+04:00", "utc": "2001-08-21T08:42:49Z", "ms": 998383368513.6816 }, "end": { "local": "2001-08-21T13:30:49+04:00", "utc": "2001-08-21T09:30:49Z", "ms": 998386248513.6816 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-22", "window": { "start": { "local": "2001-08-22T12:42:33+04:00", "utc": "2001-08-22T08:42:33Z", "ms": 998469753464.4104 }, "end": { "local": "2001-08-22T13:30:33+04:00", "utc": "2001-08-22T09:30:33Z", "ms": 998472633464.4104 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:48 on Tue 21 Aug to 16:49 on Wed 22 Aug.", "fact": "2001-08-21T15:47:53Z → 2001-08-22T12:48:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 21st, 12:43–13:31 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11886 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Erbil, 2001: Wednesday 22 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": "2001-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-22", "confidence": "determinate" } ], "quote": "In Erbil, Gaṇeśa Caturthī 2001 falls on Wednesday 22 August. Caturthī runs from 19:48 on Tue 21 Aug to 16:49 on Wed 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3399, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2001-08-22T16:48:40+04:00", "utc": "2001-08-22T12:48:40Z", "ms": 998484519698.833 }, "end": { "local": "2001-08-23T14:26:57+04:00", "utc": "2001-08-23T10:26:57Z", "ms": 998562416587.2963 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-22T16:48:40+04:00", "utc": "2001-08-22T12:48:40Z", "ms": 998484519698.833 }, "end": { "local": "2001-08-23T14:26:57+04:00", "utc": "2001-08-23T10:26:57Z", "ms": 998562416587.2963 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-22", "window": { "start": { "local": "2001-08-22T12:42:33+04:00", "utc": "2001-08-22T08:42:33Z", "ms": 998469753464.4104 }, "end": { "local": "2001-08-22T13:30:33+04:00", "utc": "2001-08-22T09:30:33Z", "ms": 998472633464.4104 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-23", "window": { "start": { "local": "2001-08-23T12:42:18+04:00", "utc": "2001-08-23T08:42:18Z", "ms": 998556137956.8682 }, "end": { "local": "2001-08-23T13:30:18+04:00", "utc": "2001-08-23T09:30:18Z", "ms": 998559017956.8682 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 16:49 on Wed 22 Aug to 14:27 on Thu 23 Aug.", "fact": "2001-08-22T12:48:40Z → 2001-08-23T10:26:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 22nd, 12:42–13:30 on the 23rd.", "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 22nd and 48 of 48 on the 23rd.", "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 3399 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Erbil, 2001: Thursday 23 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": "2001-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-23", "confidence": "boundary" } ], "quote": "In Erbil, Ṛṣi Pañcamī 2001 falls on Thursday 23 August. Pañcamī runs from 16:49 on Wed 22 Aug to 14:27 on Thu 23 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 456, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2001-08-23T14:26:57+04:00", "utc": "2001-08-23T10:26:57Z", "ms": 998562416587.2963 }, "end": { "local": "2001-08-24T12:49:38+04:00", "utc": "2001-08-24T08:49:38Z", "ms": 998642977553.9138 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-23T14:26:57+04:00", "utc": "2001-08-23T10:26:57Z", "ms": 998562416587.2963 }, "end": { "local": "2001-08-24T12:49:38+04:00", "utc": "2001-08-24T08:49:38Z", "ms": 998642977553.9138 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-23", "window": { "start": { "local": "2001-08-23T12:42:18+04:00", "utc": "2001-08-23T08:42:18Z", "ms": 998556137956.8682 }, "end": { "local": "2001-08-23T13:30:18+04:00", "utc": "2001-08-23T09:30:18Z", "ms": 998559017956.8682 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-24", "window": { "start": { "local": "2001-08-24T12:42:02+04:00", "utc": "2001-08-24T08:42:02Z", "ms": 998642522002.485 }, "end": { "local": "2001-08-24T13:30:02+04:00", "utc": "2001-08-24T09:30:02Z", "ms": 998645402002.485 } }, "covered_min": 8, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 14:27 on Thu 23 Aug to 12:50 on Fri 24 Aug.", "fact": "2001-08-23T10:26:57Z → 2001-08-24T08:49:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 23rd, 12:42–13:30 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 8 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 456 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Erbil, 2001: Friday 24 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": "2001-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-24", "confidence": "boundary" } ], "quote": "In Erbil, Sūrya Ṣaṣṭhī (Bhādrapada) 2001 falls on Friday 24 August. Ṣaṣṭhī runs from 14:27 on Thu 23 Aug to 12:50 on Fri 24 Aug and covers 8 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 456, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2001-08-24T12:49:38+04:00", "utc": "2001-08-24T08:49:38Z", "ms": 998642977553.9138 }, "end": { "local": "2001-08-25T12:00:46+04:00", "utc": "2001-08-25T08:00:46Z", "ms": 998726445610.123 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-24T12:49:38+04:00", "utc": "2001-08-24T08:49:38Z", "ms": 998642977553.9138 }, "end": { "local": "2001-08-25T12:00:46+04:00", "utc": "2001-08-25T08:00:46Z", "ms": 998726445610.123 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-24", "window": { "start": { "local": "2001-08-24T12:42:02+04:00", "utc": "2001-08-24T08:42:02Z", "ms": 998642522002.485 }, "end": { "local": "2001-08-24T13:30:02+04:00", "utc": "2001-08-24T09:30:02Z", "ms": 998645402002.485 } }, "covered_min": 40, "window_min": 48, "qualifies": true }, { "local_date": "2001-08-25", "window": { "start": { "local": "2001-08-25T12:41:46+04:00", "utc": "2001-08-25T08:41:46Z", "ms": 998728905614.255 }, "end": { "local": "2001-08-25T13:29:46+04:00", "utc": "2001-08-25T09:29:46Z", "ms": 998731785614.255 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:50 on Fri 24 Aug to 12:01 on Sat 25 Aug.", "fact": "2001-08-24T08:49:38Z → 2001-08-25T08:00:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 24th, 12:42–13:30 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 40 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 456 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Erbil, 2001: Friday 24 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": "2001-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-24", "confidence": "determinate" } ], "quote": "In Erbil, Muktābharaṇa Vrata 2001 falls on Friday 24 August. Saptamī runs from 12:50 on Fri 24 Aug to 12:01 on Sat 25 Aug and covers 40 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2436, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-08-25T12:00:46+04:00", "utc": "2001-08-25T08:00:46Z", "ms": 998726445610.123 }, "end": { "local": "2001-08-26T12:00:53+04:00", "utc": "2001-08-26T08:00:53Z", "ms": 998812852866.8911 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-25T12:00:46+04:00", "utc": "2001-08-25T08:00:46Z", "ms": 998726445610.123 }, "end": { "local": "2001-08-26T12:00:53+04:00", "utc": "2001-08-26T08:00:53Z", "ms": 998812852866.8911 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-25", "window": { "start": { "local": "2001-08-25T12:41:46+04:00", "utc": "2001-08-25T08:41:46Z", "ms": 998728905614.255 }, "end": { "local": "2001-08-25T13:29:46+04:00", "utc": "2001-08-25T09:29:46Z", "ms": 998731785614.255 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-08-26", "window": { "start": { "local": "2001-08-26T12:41:29+04:00", "utc": "2001-08-26T08:41:29Z", "ms": 998815288806.5249 }, "end": { "local": "2001-08-26T13:29:29+04:00", "utc": "2001-08-26T09:29:29Z", "ms": 998818168806.5249 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:01 on Sat 25 Aug to 12:01 on Sun 26 Aug.", "fact": "2001-08-25T08:00:46Z → 2001-08-26T08:00:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 25th, 12:41–13:29 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 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2436 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Erbil, 2001: Saturday 25 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": "2001-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-25", "confidence": "boundary" } ], "quote": "In Erbil, Rādhāṣṭamī 2001 falls on Saturday 25 August. Aṣṭamī runs from 12:01 on Sat 25 Aug to 12:01 on Sun 26 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-08-29", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27554, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-08-28T14:11:44+04:00", "utc": "2001-08-28T10:11:44Z", "ms": 998993504161.0176 }, "end": { "local": "2001-08-29T16:06:50+04:00", "utc": "2001-08-29T12:06:50Z", "ms": 999086810146.1306 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-28T14:11:44+04:00", "utc": "2001-08-28T10:11:44Z", "ms": 998993504161.0176 }, "end": { "local": "2001-08-29T16:06:50+04:00", "utc": "2001-08-29T12:06:50Z", "ms": 999086810146.1306 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-08-28", "window": { "start": { "local": "2001-08-28T06:32:30+04:00", "utc": "2001-08-28T02:32:30Z", "ms": 998965949745.826 }, "end": { "local": "2001-08-28T06:32:30+04:00", "utc": "2001-08-28T02:32:30Z", "ms": 998965949745.826 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-08-29", "window": { "start": { "local": "2001-08-29T06:33:17+04:00", "utc": "2001-08-29T02:33:17Z", "ms": 999052396752.5308 }, "end": { "local": "2001-08-29T06:33:17+04:00", "utc": "2001-08-29T02:33:17Z", "ms": 999052396752.5308 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:12 on Tue 28 Aug to 16:07 on Wed 29 Aug.", "fact": "2001-08-28T10:11:44Z → 2001-08-29T12:06:50Z" }, { "step": "kaala", "text": "Sunrise is at 06:32 on the 28th and 06:33 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 27554 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Erbil, 2001: Wednesday 29 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-29", "confidence": "determinate" } ], "quote": "In Erbil, Parivartanī Ekādaśī 2001 falls on Wednesday 29 August. Ekādaśī runs from 14:12 on Tue 28 Aug to 16:07 on Wed 29 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-08-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9494, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2001-08-29T16:06:50+04:00", "utc": "2001-08-29T12:06:50Z", "ms": 999086810146.1306 }, "end": { "local": "2001-08-30T18:22:08+04:00", "utc": "2001-08-30T14:22:08Z", "ms": 999181328458.9171 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-29T16:06:50+04:00", "utc": "2001-08-29T12:06:50Z", "ms": 999086810146.1306 }, "end": { "local": "2001-08-30T18:22:08+04:00", "utc": "2001-08-30T14:22:08Z", "ms": 999181328458.9171 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-08-29", "window": { "start": { "local": "2001-08-29T12:40:36+04:00", "utc": "2001-08-29T08:40:36Z", "ms": 999074436025.9723 }, "end": { "local": "2001-08-29T13:28:36+04:00", "utc": "2001-08-29T09:28:36Z", "ms": 999077316025.9723 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-08-30", "window": { "start": { "local": "2001-08-30T12:40:18+04:00", "utc": "2001-08-30T08:40:18Z", "ms": 999160817704.1624 }, "end": { "local": "2001-08-30T13:28:18+04:00", "utc": "2001-08-30T09:28:18Z", "ms": 999163697704.1624 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 16:07 on Wed 29 Aug to 18:22 on Thu 30 Aug.", "fact": "2001-08-29T12:06:50Z → 2001-08-30T14:22:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:41–13:29 on the 29th, 12:40–13:28 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9494 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Erbil, 2001: Thursday 30 August.", "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": "2001-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-30", "confidence": "determinate" } ], "quote": "In Erbil, Vāmana Jayantī 2001 falls on Thursday 30 August. Dvādaśī runs from 16:07 on Wed 29 Aug to 18:22 on Thu 30 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/pradosha-vrata?on=2001-08-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-08-30", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 792, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-08-30T18:22:08+04:00", "utc": "2001-08-30T14:22:08Z", "ms": 999181328458.9171 }, "end": { "local": "2001-08-31T20:48:15+04:00", "utc": "2001-08-31T16:48:15Z", "ms": 999276495131.4845 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-30T18:22:08+04:00", "utc": "2001-08-30T14:22:08Z", "ms": 999181328458.9171 }, "end": { "local": "2001-08-31T20:48:15+04:00", "utc": "2001-08-31T16:48:15Z", "ms": 999276495131.4845 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-08-30", "window": { "start": { "local": "2001-08-30T19:34:32+04:00", "utc": "2001-08-30T15:34:32Z", "ms": 999185671745.9513 }, "end": { "local": "2001-08-30T21:02:34+04:00", "utc": "2001-08-30T17:02:34Z", "ms": 999190954244.0295 } }, "covered_min": 88, "window_min": 88, "qualifies": true }, { "local_date": "2001-08-31", "window": { "start": { "local": "2001-08-31T19:33:08+04:00", "utc": "2001-08-31T15:33:08Z", "ms": 999271987615.8202 }, "end": { "local": "2001-08-31T21:01:28+04:00", "utc": "2001-08-31T17:01:28Z", "ms": 999277287562.6919 } }, "covered_min": 75, "window_min": 88, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:22 on Thu 30 Aug to 20:48 on Fri 31 Aug.", "fact": "2001-08-30T14:22:08Z → 2001-08-31T16:48:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:35–21:03 on the 30th, 19:33–21:01 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 88 of 88 minutes on the 30th and 75 of 88 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 792 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Thursday 30 August.", "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": "2001-08-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-08-30", "confidence": "boundary" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Thursday 30 August. Trayodaśī runs from 18:22 on Thu 30 Aug to 20:48 on Fri 31 Aug and covers all of pradoṣa that evening. It also reaches the next evening for 75 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/2001/pradosha-vrata?on=2001-08-30", "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/2001/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26349, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-08-31T20:48:15+04:00", "utc": "2001-08-31T16:48:15Z", "ms": 999276495131.4845 }, "end": { "local": "2001-09-01T23:17:15+04:00", "utc": "2001-09-01T19:17:15Z", "ms": 999371835104.8436 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2001-08-31T20:48:15+04:00", "utc": "2001-08-31T16:48:15Z", "ms": 999276495131.4845 }, "end": { "local": "2001-09-01T23:17:15+04:00", "utc": "2001-09-01T19:17:15Z", "ms": 999371835104.8436 } }, "kaala": "udaya-3", "days": [ { "local_date": "2001-09-01", "window": { "start": { "local": "2001-09-01T06:35:37+04:00", "utc": "2001-09-01T02:35:37Z", "ms": 999311737217.3575 }, "end": { "local": "2001-09-01T09:10:50+04:00", "utc": "2001-09-01T05:10:50Z", "ms": 999321050361.914 } }, "covered_min": 155, "window_min": 155, "qualifies": true }, { "local_date": "2001-09-02", "window": { "start": { "local": "2001-09-02T06:36:24+04:00", "utc": "2001-09-02T02:36:24Z", "ms": 999398183878.3408 }, "end": { "local": "2001-09-02T09:11:11+04:00", "utc": "2001-09-02T05:11:11Z", "ms": 999407470652.6244 } }, "covered_min": 0, "window_min": 155, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:48 on Fri 31 Aug to 23:17 on Sat 1 Sep.", "fact": "2001-08-31T16:48:15Z → 2001-09-01T19:17:15Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:36–09:11 on the 1st, 06:36–09:11 on the 2nd.", "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 155 of 155 minutes on the 1st and 0 of 155 on the 2nd.", "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 26349 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Erbil, 2001: Saturday 1 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": "2001-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-01", "confidence": "determinate" } ], "quote": "In Erbil, Ananta Caturdaśī 2001 falls on Saturday 1 September. Caturdaśī runs from 20:48 on Fri 31 Aug to 23:17 on Sat 1 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-09-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39296, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-09-06T07:58:03+04:00", "utc": "2001-09-06T03:58:03Z", "ms": 999748682515.585 }, "end": { "local": "2001-09-07T09:29:15+04:00", "utc": "2001-09-07T05:29:15Z", "ms": 999840554803.0015 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-06T07:58:03+04:00", "utc": "2001-09-06T03:58:03Z", "ms": 999748682515.585 }, "end": { "local": "2001-09-07T09:29:15+04:00", "utc": "2001-09-07T05:29:15Z", "ms": 999840554803.0015 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-09-05", "window": { "start": { "local": "2001-09-05T21:03:06+04:00", "utc": "2001-09-05T17:03:06Z", "ms": 999709386015.9296 }, "end": { "local": "2001-09-05T21:03:06+04:00", "utc": "2001-09-05T17:03:06Z", "ms": 999709386015.9296 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-09-06", "window": { "start": { "local": "2001-09-06T21:30:14+04:00", "utc": "2001-09-06T17:30:14Z", "ms": 999797414022.8761 }, "end": { "local": "2001-09-06T21:30:14+04:00", "utc": "2001-09-06T17:30:14Z", "ms": 999797414022.8761 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:58 on Thu 6 Sep to 09:29 on Fri 7 Sep.", "fact": "2001-09-06T03:58:03Z → 2001-09-07T05:29:15Z" }, { "step": "kaala", "text": "Moonrise is at 21:03 on the 5th and 21:30 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 39296 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Thursday 6 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": "2001-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-06", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Thursday 6 September. Caturthī runs from 07:58 on Thu 6 Sep to 09:29 on Fri 7 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-09-06", "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/2001/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 42905, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2001-09-08T10:35:48+04:00", "utc": "2001-09-08T06:35:48Z", "ms": 999930948078.0646 }, "end": { "local": "2001-09-09T11:12:16+04:00", "utc": "2001-09-09T07:12:16Z", "ms": 1000019536066.7585 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-08T10:35:48+04:00", "utc": "2001-09-08T06:35:48Z", "ms": 999930948078.0646 }, "end": { "local": "2001-09-09T11:12:16+04:00", "utc": "2001-09-09T07:12:16Z", "ms": 1000019536066.7585 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-09-08", "window": { "start": { "local": "2001-09-08T22:30:56+04:00", "utc": "2001-09-08T18:30:56Z", "ms": 999973856089.8165 }, "end": { "local": "2001-09-08T22:30:56+04:00", "utc": "2001-09-08T18:30:56Z", "ms": 999973856089.8165 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-09-09", "window": { "start": { "local": "2001-09-09T23:07:21+04:00", "utc": "2001-09-09T19:07:21Z", "ms": 1000062440993.5338 }, "end": { "local": "2001-09-09T23:07:21+04:00", "utc": "2001-09-09T19:07:21Z", "ms": 1000062440993.5338 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:36 on Sat 8 Sep to 11:12 on Sun 9 Sep.", "fact": "2001-09-08T06:35:48Z → 2001-09-09T07:12:16Z" }, { "step": "kaala", "text": "Moonrise is at 22:31 on the 8th and 23:07 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 42905 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Erbil, 2001: Saturday 8 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": "2001-09-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-08", "confidence": "determinate" } ], "quote": "In Erbil, Candra Ṣaṣṭhī 2001 falls on Saturday 8 September. Ṣaṣṭhī runs from 10:36 on Sat 8 Sep to 11:12 on Sun 9 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29113, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-09-10T11:13:28+04:00", "utc": "2001-09-10T07:13:28Z", "ms": 1000106008179.5667 }, "end": { "local": "2001-09-11T10:35:25+04:00", "utc": "2001-09-11T06:35:25Z", "ms": 1000190125011.6151 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-10T11:13:28+04:00", "utc": "2001-09-10T07:13:28Z", "ms": 1000106008179.5667 }, "end": { "local": "2001-09-11T10:35:25+04:00", "utc": "2001-09-11T06:35:25Z", "ms": 1000190125011.6151 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-09-10", "window": { "start": { "local": "2001-09-10T19:18:41+04:00", "utc": "2001-09-10T15:18:41Z", "ms": 1000135121362.3097 }, "end": { "local": "2001-09-10T20:49:59+04:00", "utc": "2001-09-10T16:49:59Z", "ms": 1000140598803.4647 } }, "covered_min": 91, "window_min": 91, "qualifies": true }, { "local_date": "2001-09-11", "window": { "start": { "local": "2001-09-11T19:17:13+04:00", "utc": "2001-09-11T15:17:13Z", "ms": 1000221432906.5159 }, "end": { "local": "2001-09-11T20:48:48+04:00", "utc": "2001-09-11T16:48:48Z", "ms": 1000226928341.7979 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:13 on Mon 10 Sep to 10:35 on Tue 11 Sep.", "fact": "2001-09-10T07:13:28Z → 2001-09-11T06:35:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:19–20:50 on the 10th, 19:17–20:49 on the 11th.", "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 10th and 0 of 92 on the 11th.", "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 29113 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Erbil, 2001: Monday 10 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": "2001-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-10", "confidence": "determinate" } ], "quote": "In Erbil, Jitāṣṭamī (Jitiya) 2001 falls on Monday 10 September. Aṣṭamī runs from 11:13 on Mon 10 Sep to 10:35 on Tue 11 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38726, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-09-10T11:13:28+04:00", "utc": "2001-09-10T07:13:28Z", "ms": 1000106008179.5667 }, "end": { "local": "2001-09-11T10:35:25+04:00", "utc": "2001-09-11T06:35:25Z", "ms": 1000190125011.6151 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-10T11:13:28+04:00", "utc": "2001-09-10T07:13:28Z", "ms": 1000106008179.5667 }, "end": { "local": "2001-09-11T10:35:25+04:00", "utc": "2001-09-11T06:35:25Z", "ms": 1000190125011.6151 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-09-09", "window": { "start": { "local": "2001-09-09T23:07:21+04:00", "utc": "2001-09-09T19:07:21Z", "ms": 1000062440993.5338 }, "end": { "local": "2001-09-09T23:07:21+04:00", "utc": "2001-09-09T19:07:21Z", "ms": 1000062440993.5338 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-09-10", "window": { "start": { "local": "2001-09-10T23:49:59+04:00", "utc": "2001-09-10T19:49:59Z", "ms": 1000151399219.7466 }, "end": { "local": "2001-09-10T23:49:59+04:00", "utc": "2001-09-10T19:49:59Z", "ms": 1000151399219.7466 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:13 on Mon 10 Sep to 10:35 on Tue 11 Sep.", "fact": "2001-09-10T07:13:28Z → 2001-09-11T06:35:25Z" }, { "step": "kaala", "text": "Moonrise is at 23:07 on the 9th and 23:50 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38726 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Erbil, 2001: Monday 10 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": "2001-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-10", "confidence": "determinate" } ], "quote": "In Erbil, Mahālakṣmī Vrata Samāpana 2001 falls on Monday 10 September. Aṣṭamī runs from 11:13 on Mon 10 Sep to 10:35 on Tue 11 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-09-13", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1887, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-09-13T07:16:22+04:00", "utc": "2001-09-13T03:16:22Z", "ms": 1000350982064.6951 }, "end": { "local": "2001-09-14T04:39:26+04:00", "utc": "2001-09-14T00:39:26Z", "ms": 1000427965533.2393 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-13T07:16:22+04:00", "utc": "2001-09-13T03:16:22Z", "ms": 1000350982064.6951 }, "end": { "local": "2001-09-14T04:39:26+04:00", "utc": "2001-09-14T00:39:26Z", "ms": 1000427965533.2393 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-09-13", "window": { "start": { "local": "2001-09-13T06:44:55+04:00", "utc": "2001-09-13T02:44:55Z", "ms": 1000349095215.149 }, "end": { "local": "2001-09-13T06:44:55+04:00", "utc": "2001-09-13T02:44:55Z", "ms": 1000349095215.149 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-09-14", "window": { "start": { "local": "2001-09-14T06:45:42+04:00", "utc": "2001-09-14T02:45:42Z", "ms": 1000435541811.2743 }, "end": { "local": "2001-09-14T06:45:42+04:00", "utc": "2001-09-14T02:45:42Z", "ms": 1000435541811.2743 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:16 on Thu 13 Sep to 04:39 on Fri 14 Sep.", "fact": "2001-09-13T03:16:22Z → 2001-09-14T00:39:26Z" }, { "step": "kaala", "text": "Sunrise is at 06:45 on the 13th and 06:46 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1887 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Erbil, 2001: Thursday 13 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-13", "confidence": "determinate" } ], "quote": "In Erbil, Indirā Ekādaśī 2001 falls on Thursday 13 September. Ekādaśī runs from 07:16 on Thu 13 Sep to 04:39 on Fri 14 Sep, and is current at sunrise on neither day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-09-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-09-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4552, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-09-15T01:31:16+04:00", "utc": "2001-09-14T21:31:16Z", "ms": 1000503076421.2556 }, "end": { "local": "2001-09-15T21:59:57+04:00", "utc": "2001-09-15T17:59:57Z", "ms": 1000576797033.1449 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-15T01:31:16+04:00", "utc": "2001-09-14T21:31:16Z", "ms": 1000503076421.2556 }, "end": { "local": "2001-09-15T21:59:57+04:00", "utc": "2001-09-15T17:59:57Z", "ms": 1000576797033.1449 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-09-14", "window": { "start": { "local": "2001-09-14T19:12:46+04:00", "utc": "2001-09-14T15:12:46Z", "ms": 1000480366359.6747 }, "end": { "local": "2001-09-14T20:45:16+04:00", "utc": "2001-09-14T16:45:16Z", "ms": 1000485915973.9337 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "2001-09-15", "window": { "start": { "local": "2001-09-15T19:11:17+04:00", "utc": "2001-09-15T15:11:17Z", "ms": 1000566677208.8242 }, "end": { "local": "2001-09-15T20:44:05+04:00", "utc": "2001-09-15T16:44:05Z", "ms": 1000572244939.2136 } }, "covered_min": 93, "window_min": 93, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:31 on Sat 15 Sep to 22:00 on Sat 15 Sep.", "fact": "2001-09-14T21:31:16Z → 2001-09-15T17:59:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:13–20:45 on the 14th, 19:11–20:44 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 92 minutes on the 14th and 93 of 93 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4552 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Saturday 15 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": "2001-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-15", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Saturday 15 September. Trayodaśī runs from 01:31 on Sat 15 Sep to 22:00 on Sat 15 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-09-15", "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/2001/shivaratri?on=2001-09-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9319, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-09-15T21:59:57+04:00", "utc": "2001-09-15T17:59:57Z", "ms": 1000576797033.1449 }, "end": { "local": "2001-09-16T18:15:05+04:00", "utc": "2001-09-16T14:15:05Z", "ms": 1000649704796.3701 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-15T21:59:57+04:00", "utc": "2001-09-15T17:59:57Z", "ms": 1000576797033.1449 }, "end": { "local": "2001-09-16T18:15:05+04:00", "utc": "2001-09-16T14:15:05Z", "ms": 1000649704796.3701 } }, "kaala": "nishita", "days": [ { "local_date": "2001-09-15", "window": { "start": { "local": "2001-09-16T00:35:16+04:00", "utc": "2001-09-15T20:35:16Z", "ms": 1000586116197.7847 }, "end": { "local": "2001-09-16T01:23:16+04:00", "utc": "2001-09-15T21:23:16Z", "ms": 1000588996197.7847 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-09-16", "window": { "start": { "local": "2001-09-17T00:34:55+04:00", "utc": "2001-09-16T20:34:55Z", "ms": 1000672494963.6935 }, "end": { "local": "2001-09-17T01:22:55+04:00", "utc": "2001-09-16T21:22:55Z", "ms": 1000675374963.6935 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:00 on Sat 15 Sep to 18:15 on Sun 16 Sep.", "fact": "2001-09-15T17:59:57Z → 2001-09-16T14:15:05Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:35–01:23 on the 15th, 00:35–01:23 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9319 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Saturday 15 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": "2001-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-15", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Saturday 15 September. Caturdaśī runs from 22:00 on Sat 15 Sep to 18:15 on Sun 16 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-09-15", "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/2001/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 909, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2001-09-16T18:15:05+04:00", "utc": "2001-09-16T14:15:05Z", "ms": 1000649704796.3701 }, "end": { "local": "2001-09-17T14:27:21+04:00", "utc": "2001-09-17T10:27:21Z", "ms": 1000722441279.4651 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-16T18:15:05+04:00", "utc": "2001-09-16T14:15:05Z", "ms": 1000649704796.3701 }, "end": { "local": "2001-09-17T14:27:21+04:00", "utc": "2001-09-17T10:27:21Z", "ms": 1000722441279.4651 } }, "kaala": "aparahna", "days": [ { "local_date": "2001-09-16", "window": { "start": { "local": "2001-09-16T14:12:47+04:00", "utc": "2001-09-16T10:12:47Z", "ms": 1000635166844.3151 }, "end": { "local": "2001-09-16T16:41:17+04:00", "utc": "2001-09-16T12:41:17Z", "ms": 1000644077396.8385 } }, "covered_min": 0, "window_min": 149, "qualifies": false }, { "local_date": "2001-09-17", "window": { "start": { "local": "2001-09-17T14:12:12+04:00", "utc": "2001-09-17T10:12:12Z", "ms": 1000721531955.1097 }, "end": { "local": "2001-09-17T16:40:15+04:00", "utc": "2001-09-17T12:40:15Z", "ms": 1000730415280.8046 } }, "covered_min": 15, "window_min": 148, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 18:15 on Sun 16 Sep to 14:27 on Mon 17 Sep.", "fact": "2001-09-16T14:15:05Z → 2001-09-17T10:27:21Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 14:13–16:41 on the 16th, 14:12–16:40 on the 17th.", "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 149 minutes on the 16th and 15 of 148 on the 17th.", "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 909 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Erbil, 2001: Monday 17 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": "2001-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-17", "confidence": "determinate" } ], "quote": "In Erbil, Mahālaya Amāvāsyā (Mahalaya) 2001 falls on Monday 17 September. Amāvasyā runs from 18:15 on Sun 16 Sep to 14:27 on Mon 17 Sep and covers 15 of 148 minutes of aparāhṇa that afternoon.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-09-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28419, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-09-20T04:39:28+04:00", "utc": "2001-09-20T00:39:28Z", "ms": 1000946367646.4489 }, "end": { "local": "2001-09-21T02:30:33+04:00", "utc": "2001-09-20T22:30:33Z", "ms": 1001025033453.6759 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": true, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-20T04:39:28+04:00", "utc": "2001-09-20T00:39:28Z", "ms": 1000946367646.4489 }, "end": { "local": "2001-09-21T02:30:33+04:00", "utc": "2001-09-20T22:30:33Z", "ms": 1001025033453.6759 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-09-20", "window": { "start": { "local": "2001-09-20T12:33:07+04:00", "utc": "2001-09-20T08:33:07Z", "ms": 1000974786576.9275 }, "end": { "local": "2001-09-20T13:21:07+04:00", "utc": "2001-09-20T09:21:07Z", "ms": 1000977666576.9275 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-09-21", "window": { "start": { "local": "2001-09-21T12:32:45+04:00", "utc": "2001-09-21T08:32:45Z", "ms": 1001061165429.0979 }, "end": { "local": "2001-09-21T13:20:45+04:00", "utc": "2001-09-21T09:20:45Z", "ms": 1001064045429.0979 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:39 on Thu 20 Sep to 02:31 on Fri 21 Sep.", "fact": "2001-09-20T00:39:28Z → 2001-09-20T22:30:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 20th, 12:33–13:21 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 28419 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Thursday 20 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": "2001-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-20", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Thursday 20 September. Caturthī runs from 04:39 on Thu 20 Sep to 02:31 on Fri 21 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-09-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/ekadashi?on=2001-09-28", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2482, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-09-27T06:14:33+04:00", "utc": "2001-09-27T02:14:33Z", "ms": 1001556873362.6777 }, "end": { "local": "2001-09-28T08:44:12+04:00", "utc": "2001-09-28T04:44:12Z", "ms": 1001652251709.8064 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": true, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-27T06:14:33+04:00", "utc": "2001-09-27T02:14:33Z", "ms": 1001556873362.6777 }, "end": { "local": "2001-09-28T08:44:12+04:00", "utc": "2001-09-28T04:44:12Z", "ms": 1001652251709.8064 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-09-27", "window": { "start": { "local": "2001-09-27T06:55:55+04:00", "utc": "2001-09-27T02:55:55Z", "ms": 1001559355239.8466 }, "end": { "local": "2001-09-27T06:55:55+04:00", "utc": "2001-09-27T02:55:55Z", "ms": 1001559355239.8466 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-09-28", "window": { "start": { "local": "2001-09-28T06:56:43+04:00", "utc": "2001-09-28T02:56:43Z", "ms": 1001645803312.9008 }, "end": { "local": "2001-09-28T06:56:43+04:00", "utc": "2001-09-28T02:56:43Z", "ms": 1001645803312.9008 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:15 on Thu 27 Sep to 08:44 on Fri 28 Sep.", "fact": "2001-09-27T02:14:33Z → 2001-09-28T04:44:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:56 on the 27th and 06:57 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both sunrises qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 2482 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Erbil, 2001: Friday 28 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-28", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Ekādaśī 2001 falls on Friday 28 September. Ekādaśī runs from 06:15 on Thu 27 Sep to 08:44 on Fri 28 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-09-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-09-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18433, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-09-29T11:16:25+04:00", "utc": "2001-09-29T07:16:25Z", "ms": 1001747785118.4584 }, "end": { "local": "2001-09-30T13:41:49+04:00", "utc": "2001-09-30T09:41:49Z", "ms": 1001842908681.5472 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": true, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-09-29T11:16:25+04:00", "utc": "2001-09-29T07:16:25Z", "ms": 1001747785118.4584 }, "end": { "local": "2001-09-30T13:41:49+04:00", "utc": "2001-09-30T09:41:49Z", "ms": 1001842908681.5472 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-09-29", "window": { "start": { "local": "2001-09-29T18:50:30+04:00", "utc": "2001-09-29T14:50:30Z", "ms": 1001775029669.915 }, "end": { "local": "2001-09-29T20:27:32+04:00", "utc": "2001-09-29T16:27:32Z", "ms": 1001780852384.5693 } }, "covered_min": 97, "window_min": 97, "qualifies": true }, { "local_date": "2001-09-30", "window": { "start": { "local": "2001-09-30T18:49:02+04:00", "utc": "2001-09-30T14:49:02Z", "ms": 1001861341742.8875 }, "end": { "local": "2001-09-30T20:26:23+04:00", "utc": "2001-09-30T16:26:23Z", "ms": 1001867182670.8508 } }, "covered_min": 0, "window_min": 97, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:16 on Sat 29 Sep to 13:42 on Sun 30 Sep.", "fact": "2001-09-29T07:16:25Z → 2001-09-30T09:41:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:50–20:28 on the 29th, 18:49–20:26 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 97 of 97 minutes on the 29th and 0 of 97 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18433 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Saturday 29 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-09-29", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Saturday 29 September. Trayodaśī runs from 11:16 on Sat 29 Sep to 13:42 on Sun 30 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-09-29", "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/2001/sankashta-chaturthi?on=2001-10-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3525, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-10-05T20:34:39+03:00", "utc": "2001-10-05T17:34:39Z", "ms": 1002303278502.6199 }, "end": { "local": "2001-10-06T21:06:05+03:00", "utc": "2001-10-06T18:06:05Z", "ms": 1002391564984.481 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": true, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-05T20:34:39+03:00", "utc": "2001-10-05T17:34:39Z", "ms": 1002303278502.6199 }, "end": { "local": "2001-10-06T21:06:05+03:00", "utc": "2001-10-06T18:06:05Z", "ms": 1002391564984.481 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-10-05", "window": { "start": { "local": "2001-10-05T19:32:37+03:00", "utc": "2001-10-05T16:32:37Z", "ms": 1002299557077.7374 }, "end": { "local": "2001-10-05T19:32:37+03:00", "utc": "2001-10-05T16:32:37Z", "ms": 1002299557077.7374 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-10-06", "window": { "start": { "local": "2001-10-06T20:07:20+03:00", "utc": "2001-10-06T17:07:20Z", "ms": 1002388039871.7162 }, "end": { "local": "2001-10-06T20:07:20+03:00", "utc": "2001-10-06T17:07:20Z", "ms": 1002388039871.7162 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:35 on Fri 5 Oct to 21:06 on Sat 6 Oct.", "fact": "2001-10-05T17:34:39Z → 2001-10-06T18:06:05Z" }, { "step": "kaala", "text": "Moonrise is at 19:33 on the 5th and 20:07 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3525 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Saturday 6 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": "2001-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-06", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Saturday 6 October. Caturthī runs from 20:35 on Fri 5 Oct to 21:06 on Sat 6 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-10-06", "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/2001/ekadashi?on=2001-10-13", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18653, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-10-12T14:10:57+03:00", "utc": "2001-10-12T11:10:57Z", "ms": 1002885057143.9819 }, "end": { "local": "2001-10-13T11:20:07+03:00", "utc": "2001-10-13T08:20:07Z", "ms": 1002961207167.651 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": true, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-12T14:10:57+03:00", "utc": "2001-10-12T11:10:57Z", "ms": 1002885057143.9819 }, "end": { "local": "2001-10-13T11:20:07+03:00", "utc": "2001-10-13T08:20:07Z", "ms": 1002961207167.651 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-10-12", "window": { "start": { "local": "2001-10-12T06:08:22+03:00", "utc": "2001-10-12T03:08:22Z", "ms": 1002856102347.8885 }, "end": { "local": "2001-10-12T06:08:22+03:00", "utc": "2001-10-12T03:08:22Z", "ms": 1002856102347.8885 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-10-13", "window": { "start": { "local": "2001-10-13T06:09:15+03:00", "utc": "2001-10-13T03:09:15Z", "ms": 1002942554646.8518 }, "end": { "local": "2001-10-13T06:09:15+03:00", "utc": "2001-10-13T03:09:15Z", "ms": 1002942554646.8518 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:11 on Fri 12 Oct to 11:20 on Sat 13 Oct.", "fact": "2001-10-12T11:10:57Z → 2001-10-13T08:20:07Z" }, { "step": "kaala", "text": "Sunrise is at 06:08 on the 12th and 06:09 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18653 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Erbil, 2001: Saturday 13 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": "2001-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-13", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Ekādaśī 2001 falls on Saturday 13 October. Ekādaśī runs from 14:11 on Fri 12 Oct to 11:20 on Sat 13 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-10-13", "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/2001/pradosha-vrata?on=2001-10-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33497, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-10-14T08:11:02+03:00", "utc": "2001-10-14T05:11:02Z", "ms": 1003036261885.2343 }, "end": { "local": "2001-10-15T04:52:02+03:00", "utc": "2001-10-15T01:52:02Z", "ms": 1003110721621.831 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": true, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-14T08:11:02+03:00", "utc": "2001-10-14T05:11:02Z", "ms": 1003036261885.2343 }, "end": { "local": "2001-10-15T04:52:02+03:00", "utc": "2001-10-15T01:52:02Z", "ms": 1003110721621.831 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-10-14", "window": { "start": { "local": "2001-10-14T17:29:19+03:00", "utc": "2001-10-14T14:29:19Z", "ms": 1003069758851.5623 }, "end": { "local": "2001-10-14T19:10:52+03:00", "utc": "2001-10-14T16:10:52Z", "ms": 1003075852381.1116 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "2001-10-15", "window": { "start": { "local": "2001-10-15T17:27:59+03:00", "utc": "2001-10-15T14:27:59Z", "ms": 1003156079046.9758 }, "end": { "local": "2001-10-15T19:09:50+03:00", "utc": "2001-10-15T16:09:50Z", "ms": 1003162190334.159 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:11 on Sun 14 Oct to 04:52 on Mon 15 Oct.", "fact": "2001-10-14T05:11:02Z → 2001-10-15T01:52:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:29–19:11 on the 14th, 17:28–19:10 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 102 of 102 minutes on the 14th and 0 of 102 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 33497 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Sunday 14 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-14", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Sunday 14 October. Trayodaśī runs from 08:11 on Sun 14 Oct to 04:52 on Mon 15 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-10-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/shivaratri?on=2001-10-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4724, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-10-15T04:52:02+03:00", "utc": "2001-10-15T01:52:02Z", "ms": 1003110721621.831 }, "end": { "local": "2001-10-16T01:32:41+03:00", "utc": "2001-10-15T22:32:41Z", "ms": 1003185160821.7758 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": true, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-15T04:52:02+03:00", "utc": "2001-10-15T01:52:02Z", "ms": 1003110721621.831 }, "end": { "local": "2001-10-16T01:32:41+03:00", "utc": "2001-10-15T22:32:41Z", "ms": 1003185160821.7758 } }, "kaala": "nishita", "days": [ { "local_date": "2001-10-14", "window": { "start": { "local": "2001-10-14T23:26:10+03:00", "utc": "2001-10-14T20:26:10Z", "ms": 1003091169587.3723 }, "end": { "local": "2001-10-15T00:14:10+03:00", "utc": "2001-10-14T21:14:10Z", "ms": 1003094049587.3723 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-10-15", "window": { "start": { "local": "2001-10-15T23:25:56+03:00", "utc": "2001-10-15T20:25:56Z", "ms": 1003177556373.9128 }, "end": { "local": "2001-10-16T00:13:56+03:00", "utc": "2001-10-15T21:13:56Z", "ms": 1003180436373.9128 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:52 on Mon 15 Oct to 01:33 on Tue 16 Oct.", "fact": "2001-10-15T01:52:02Z → 2001-10-15T22:32:41Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:26–00:14 on the 14th, 23:26–00:14 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 4724 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Monday 15 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": "2001-10-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-15", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Monday 15 October. Caturdaśī runs from 04:52 on Mon 15 Oct to 01:33 on Tue 16 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-10-15", "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/2001/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26482, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2001-10-16T22:23:19+03:00", "utc": "2001-10-16T19:23:19Z", "ms": 1003260198527.7167 }, "end": { "local": "2001-10-17T19:34:26+03:00", "utc": "2001-10-17T16:34:26Z", "ms": 1003336466168.2878 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-16T22:23:19+03:00", "utc": "2001-10-16T19:23:19Z", "ms": 1003260198527.7167 }, "end": { "local": "2001-10-17T19:34:26+03:00", "utc": "2001-10-17T16:34:26Z", "ms": 1003336466168.2878 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-10-16", "window": { "start": { "local": "2001-10-16T11:25:17+03:00", "utc": "2001-10-16T08:25:17Z", "ms": 1003220716863.6567 }, "end": { "local": "2001-10-16T12:13:17+03:00", "utc": "2001-10-16T09:13:17Z", "ms": 1003223596863.6567 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-10-17", "window": { "start": { "local": "2001-10-17T11:25:05+03:00", "utc": "2001-10-17T08:25:05Z", "ms": 1003307104626.8496 }, "end": { "local": "2001-10-17T12:13:05+03:00", "utc": "2001-10-17T09:13:05Z", "ms": 1003309984626.8496 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 22:23 on Tue 16 Oct to 19:34 on Wed 17 Oct.", "fact": "2001-10-16T19:23:19Z → 2001-10-17T16:34:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 16th, 11:25–12:13 on the 17th.", "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 16th and 48 of 48 on the 17th.", "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 26482 s" }, { "step": "ruling", "text": "Navarātrārambha, Erbil, 2001: Wednesday 17 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-17", "confidence": "determinate" } ], "quote": "In Erbil, Navarātrārambha (Navratri) 2001 falls on Wednesday 17 October. Pratipadā runs from 22:23 on Tue 16 Oct to 19:34 on Wed 17 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-10-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9145, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-10-19T15:37:25+03:00", "utc": "2001-10-19T12:37:25Z", "ms": 1003495044609.2661 }, "end": { "local": "2001-10-20T14:44:56+03:00", "utc": "2001-10-20T11:44:56Z", "ms": 1003578296423.7418 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-19T15:37:25+03:00", "utc": "2001-10-19T12:37:25Z", "ms": 1003495044609.2661 }, "end": { "local": "2001-10-20T14:44:56+03:00", "utc": "2001-10-20T11:44:56Z", "ms": 1003578296423.7418 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-10-19", "window": { "start": { "local": "2001-10-19T11:24:42+03:00", "utc": "2001-10-19T08:24:42Z", "ms": 1003479881957.1747 }, "end": { "local": "2001-10-19T12:12:42+03:00", "utc": "2001-10-19T09:12:42Z", "ms": 1003482761957.1747 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-10-20", "window": { "start": { "local": "2001-10-20T11:24:32+03:00", "utc": "2001-10-20T08:24:32Z", "ms": 1003566271549.751 }, "end": { "local": "2001-10-20T12:12:32+03:00", "utc": "2001-10-20T09:12:32Z", "ms": 1003569151549.751 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:37 on Fri 19 Oct to 14:45 on Sat 20 Oct.", "fact": "2001-10-19T12:37:25Z → 2001-10-20T11:44:56Z" }, { "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": "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 9145 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Saturday 20 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": "2001-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-20", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Saturday 20 October. Caturthī runs from 15:37 on Fri 19 Oct to 14:45 on Sat 20 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-10-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30450, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2001-10-22T15:28:58+03:00", "utc": "2001-10-22T12:28:58Z", "ms": 1003753738134.7576 }, "end": { "local": "2001-10-23T16:59:31+03:00", "utc": "2001-10-23T13:59:31Z", "ms": 1003845571313.9819 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-22T15:28:58+03:00", "utc": "2001-10-22T12:28:58Z", "ms": 1003753738134.7576 }, "end": { "local": "2001-10-23T16:59:31+03:00", "utc": "2001-10-23T13:59:31Z", "ms": 1003845571313.9819 } }, "kaala": "udaya-1", "days": [ { "local_date": "2001-10-22", "window": { "start": { "local": "2001-10-22T06:17:21+03:00", "utc": "2001-10-22T03:17:21Z", "ms": 1003720641349.4226 }, "end": { "local": "2001-10-22T07:01:28+03:00", "utc": "2001-10-22T04:01:28Z", "ms": 1003723288190.36 } }, "covered_min": 0, "window_min": 44, "qualifies": false }, { "local_date": "2001-10-23", "window": { "start": { "local": "2001-10-23T06:18:17+03:00", "utc": "2001-10-23T03:18:17Z", "ms": 1003807097152.5892 }, "end": { "local": "2001-10-23T07:02:15+03:00", "utc": "2001-10-23T04:02:15Z", "ms": 1003809735425.3834 } }, "covered_min": 44, "window_min": 44, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 15:29 on Mon 22 Oct to 17:00 on Tue 23 Oct.", "fact": "2001-10-22T12:28:58Z → 2001-10-23T13:59:31Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:17–07:01 on the 22nd, 06:18–07:02 on the 23rd.", "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 44 minutes on the 22nd and 44 of 44 on the 23rd.", "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 30450 s" }, { "step": "ruling", "text": "Durgā Saptamī, Erbil, 2001: Tuesday 23 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise" } ], "kaala": "udaya-1", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-23", "confidence": "determinate" } ], "quote": "In Erbil, Durgā Saptamī 2001 falls on Tuesday 23 October. Saptamī runs from 15:29 on Mon 22 Oct to 17:00 on Tue 23 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17247, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-10-23T16:59:31+03:00", "utc": "2001-10-23T13:59:31Z", "ms": 1003845571313.9819 }, "end": { "local": "2001-10-24T19:04:11+03:00", "utc": "2001-10-24T16:04:11Z", "ms": 1003939450763.6769 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-23T16:59:31+03:00", "utc": "2001-10-23T13:59:31Z", "ms": 1003845571313.9819 }, "end": { "local": "2001-10-24T19:04:11+03:00", "utc": "2001-10-24T16:04:11Z", "ms": 1003939450763.6769 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-10-23", "window": { "start": { "local": "2001-10-23T11:24:04+03:00", "utc": "2001-10-23T08:24:04Z", "ms": 1003825444198.5459 }, "end": { "local": "2001-10-23T12:12:04+03:00", "utc": "2001-10-23T09:12:04Z", "ms": 1003828324198.5459 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-10-24", "window": { "start": { "local": "2001-10-24T11:23:56+03:00", "utc": "2001-10-24T08:23:56Z", "ms": 1003911836418.9216 }, "end": { "local": "2001-10-24T12:11:56+03:00", "utc": "2001-10-24T09:11:56Z", "ms": 1003914716418.9216 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:00 on Tue 23 Oct to 19:04 on Wed 24 Oct.", "fact": "2001-10-23T13:59:31Z → 2001-10-24T16:04:11Z" }, { "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": "Aṣṭamī 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: paraviddha → only-day · margin 17247 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Erbil, 2001: Wednesday 24 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Mahastami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-24", "confidence": "determinate" } ], "quote": "In Erbil, Mahāṣṭamī (Durga Ashtami) 2001 falls on Wednesday 24 October. Aṣṭamī runs from 17:00 on Tue 23 Oct to 19:04 on Wed 24 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24734, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2001-10-24T19:04:11+03:00", "utc": "2001-10-24T16:04:11Z", "ms": 1003939450763.6769 }, "end": { "local": "2001-10-25T21:29:56+03:00", "utc": "2001-10-25T18:29:56Z", "ms": 1004034595753.1001 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-24T19:04:11+03:00", "utc": "2001-10-24T16:04:11Z", "ms": 1003939450763.6769 }, "end": { "local": "2001-10-25T21:29:56+03:00", "utc": "2001-10-25T18:29:56Z", "ms": 1004034595753.1001 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-10-24", "window": { "start": { "local": "2001-10-24T11:23:56+03:00", "utc": "2001-10-24T08:23:56Z", "ms": 1003911836418.9216 }, "end": { "local": "2001-10-24T12:11:56+03:00", "utc": "2001-10-24T09:11:56Z", "ms": 1003914716418.9216 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-10-25", "window": { "start": { "local": "2001-10-25T11:23:49+03:00", "utc": "2001-10-25T08:23:49Z", "ms": 1003998229332.0786 }, "end": { "local": "2001-10-25T12:11:49+03:00", "utc": "2001-10-25T09:11:49Z", "ms": 1004001109332.0786 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 19:04 on Wed 24 Oct to 21:30 on Thu 25 Oct.", "fact": "2001-10-24T16:04:11Z → 2001-10-25T18:29:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 24th, 11:24–12:12 on the 25th.", "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 24th and 48 of 48 on the 25th.", "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 24734 s" }, { "step": "ruling", "text": "Mahānavamī, Erbil, 2001: Thursday 25 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahanavami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Mahanavami (purvaviddha) (In Bengal it is observed as paraviddha covering one muhurta from sunrise)." } ], "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.", "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-25", "confidence": "determinate" } ], "quote": "In Erbil, Mahānavamī 2001 falls on Thursday 25 October. Navamī runs from 19:04 on Wed 24 Oct to 21:30 on Thu 25 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23312, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2001-10-25T21:29:56+03:00", "utc": "2001-10-25T18:29:56Z", "ms": 1004034595753.1001 }, "end": { "local": "2001-10-27T00:02:37+03:00", "utc": "2001-10-26T21:02:37Z", "ms": 1004130156807.3575 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-25T21:29:56+03:00", "utc": "2001-10-25T18:29:56Z", "ms": 1004034595753.1001 }, "end": { "local": "2001-10-27T00:02:37+03:00", "utc": "2001-10-26T21:02:37Z", "ms": 1004130156807.3575 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-10-25", "window": { "start": { "local": "2001-10-25T11:23:49+03:00", "utc": "2001-10-25T08:23:49Z", "ms": 1003998229332.0786 }, "end": { "local": "2001-10-25T12:11:49+03:00", "utc": "2001-10-25T09:11:49Z", "ms": 1004001109332.0786 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-10-26", "window": { "start": { "local": "2001-10-26T11:23:43+03:00", "utc": "2001-10-26T08:23:43Z", "ms": 1004084622952.5078 }, "end": { "local": "2001-10-26T12:11:43+03:00", "utc": "2001-10-26T09:11:43Z", "ms": 1004087502952.5078 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 21:30 on Thu 25 Oct to 00:03 on Sat 27 Oct.", "fact": "2001-10-25T18:29:56Z → 2001-10-26T21:02:37Z" }, { "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": "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 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 23312 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Erbil, 2001: Friday 26 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vijaya-dashami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara." } ], "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day", "conjunction": { "nakshatra": "Śravaṇa", "kaala": "daytime" } }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-26", "confidence": "determinate" } ], "quote": "In Erbil, Vijayā Daśamī (Dussehra) 2001 falls on Friday 26 October. Daśamī touches Śravaṇa in the day time on neither day, so madhyāhna decides. Daśamī runs from 21:30 on Thu 25 Oct to 00:03 on Sat 27 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-10-27", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14031, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-10-27T00:02:37+03:00", "utc": "2001-10-26T21:02:37Z", "ms": 1004130156807.3575 }, "end": { "local": "2001-10-28T02:29:10+03:00", "utc": "2001-10-27T23:29:10Z", "ms": 1004225349879.9978 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-27T00:02:37+03:00", "utc": "2001-10-26T21:02:37Z", "ms": 1004130156807.3575 }, "end": { "local": "2001-10-28T02:29:10+03:00", "utc": "2001-10-27T23:29:10Z", "ms": 1004225349879.9978 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-10-27", "window": { "start": { "local": "2001-10-27T06:22:04+03:00", "utc": "2001-10-27T03:22:04Z", "ms": 1004152923637.6721 }, "end": { "local": "2001-10-27T06:22:04+03:00", "utc": "2001-10-27T03:22:04Z", "ms": 1004152923637.6721 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-10-28", "window": { "start": { "local": "2001-10-28T06:23:01+03:00", "utc": "2001-10-28T03:23:01Z", "ms": 1004239381054.881 }, "end": { "local": "2001-10-28T06:23:01+03:00", "utc": "2001-10-28T03:23:01Z", "ms": 1004239381054.881 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:03 on Sat 27 Oct to 02:29 on Sun 28 Oct.", "fact": "2001-10-26T21:02:37Z → 2001-10-27T23:29:10Z" }, { "step": "kaala", "text": "Sunrise is at 06:22 on the 27th and 06:23 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 14031 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Erbil, 2001: Saturday 27 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-27", "confidence": "determinate" } ], "quote": "In Erbil, Pāśāṅkuśā Ekādaśī 2001 falls on Saturday 27 October. Ekādaśī runs from 00:03 on Sat 27 Oct to 02:29 on Sun 28 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-10-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/pradosha-vrata?on=2001-10-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34900, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-10-29T04:39:19+03:00", "utc": "2001-10-29T01:39:19Z", "ms": 1004319559209.7603 }, "end": { "local": "2001-10-30T06:26:24+03:00", "utc": "2001-10-30T03:26:24Z", "ms": 1004412383969.3647 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2001-10-29T04:39:19+03:00", "utc": "2001-10-29T01:39:19Z", "ms": 1004319559209.7603 }, "end": { "local": "2001-10-30T06:26:24+03:00", "utc": "2001-10-30T03:26:24Z", "ms": 1004412383969.3647 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-10-28", "window": { "start": { "local": "2001-10-28T17:12:04+03:00", "utc": "2001-10-28T14:12:04Z", "ms": 1004278323690.4805 }, "end": { "local": "2001-10-28T18:57:39+03:00", "utc": "2001-10-28T15:57:39Z", "ms": 1004284659035.7607 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "2001-10-29", "window": { "start": { "local": "2001-10-29T17:10:58+03:00", "utc": "2001-10-29T14:10:58Z", "ms": 1004364657621.537 }, "end": { "local": "2001-10-29T18:56:50+03:00", "utc": "2001-10-29T15:56:50Z", "ms": 1004371009512.9612 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:39 on Mon 29 Oct to 06:26 on Tue 30 Oct.", "fact": "2001-10-29T01:39:19Z → 2001-10-30T03:26:24Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:12–18:58 on the 28th, 17:11–18:57 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 106 minutes on the 28th and 106 of 106 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 34900 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Monday 29 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": "2001-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-10-29", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Monday 29 October. Trayodaśī runs from 04:39 on Mon 29 Oct to 06:26 on Tue 30 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-10-29", "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/2001/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38189, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-11-04T08:54:49+03:00", "utc": "2001-11-04T05:54:49Z", "ms": 1004853289132.597 }, "end": { "local": "2001-11-05T08:15:33+03:00", "utc": "2001-11-05T05:15:33Z", "ms": 1004937332603.8236 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-04T08:54:49+03:00", "utc": "2001-11-04T05:54:49Z", "ms": 1004853289132.597 }, "end": { "local": "2001-11-05T08:15:33+03:00", "utc": "2001-11-05T05:15:33Z", "ms": 1004937332603.8236 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-11-04", "window": { "start": { "local": "2001-11-04T19:31:18+03:00", "utc": "2001-11-04T16:31:18Z", "ms": 1004891478309.5144 }, "end": { "local": "2001-11-04T19:31:18+03:00", "utc": "2001-11-04T16:31:18Z", "ms": 1004891478309.5144 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-11-05", "window": { "start": { "local": "2001-11-05T20:23:45+03:00", "utc": "2001-11-05T17:23:45Z", "ms": 1004981024982.3667 }, "end": { "local": "2001-11-05T20:23:45+03:00", "utc": "2001-11-05T17:23:45Z", "ms": 1004981024982.3667 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:55 on Sun 4 Nov to 08:16 on Mon 5 Nov.", "fact": "2001-11-04T05:54:49Z → 2001-11-05T05:15:33Z" }, { "step": "kaala", "text": "Moonrise is at 19:31 on the 4th and 20:24 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 38189 s" }, { "step": "ruling", "text": "Karaka Caturthī, Erbil, 2001: Sunday 4 November.", "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": "2001-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-04", "confidence": "determinate" } ], "quote": "In Erbil, Karaka Caturthī (Karwa Chauth) 2001 falls on Sunday 4 November. Caturthī runs from 08:55 on Sun 4 Nov to 08:16 on Mon 5 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-11-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38189, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-11-04T08:54:49+03:00", "utc": "2001-11-04T05:54:49Z", "ms": 1004853289132.597 }, "end": { "local": "2001-11-05T08:15:33+03:00", "utc": "2001-11-05T05:15:33Z", "ms": 1004937332603.8236 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-04T08:54:49+03:00", "utc": "2001-11-04T05:54:49Z", "ms": 1004853289132.597 }, "end": { "local": "2001-11-05T08:15:33+03:00", "utc": "2001-11-05T05:15:33Z", "ms": 1004937332603.8236 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-11-04", "window": { "start": { "local": "2001-11-04T19:31:18+03:00", "utc": "2001-11-04T16:31:18Z", "ms": 1004891478309.5144 }, "end": { "local": "2001-11-04T19:31:18+03:00", "utc": "2001-11-04T16:31:18Z", "ms": 1004891478309.5144 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-11-05", "window": { "start": { "local": "2001-11-05T20:23:45+03:00", "utc": "2001-11-05T17:23:45Z", "ms": 1004981024982.3667 }, "end": { "local": "2001-11-05T20:23:45+03:00", "utc": "2001-11-05T17:23:45Z", "ms": 1004981024982.3667 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:55 on Sun 4 Nov to 08:16 on Mon 5 Nov.", "fact": "2001-11-04T05:54:49Z → 2001-11-05T05:15:33Z" }, { "step": "kaala", "text": "Moonrise is at 19:31 on the 4th and 20:24 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38189 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Sunday 4 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": "2001-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-04", "confidence": "determinate" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Sunday 4 November. Caturthī runs from 08:55 on Sun 4 Nov to 08:16 on Mon 5 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-11-04", "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/2001/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9810, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-11-08T04:17:41+03:00", "utc": "2001-11-08T01:17:41Z", "ms": 1005182261404.2708 }, "end": { "local": "2001-11-09T02:20:25+03:00", "utc": "2001-11-08T23:20:25Z", "ms": 1005261625185.8329 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-08T04:17:41+03:00", "utc": "2001-11-08T01:17:41Z", "ms": 1005182261404.2708 }, "end": { "local": "2001-11-09T02:20:25+03:00", "utc": "2001-11-08T23:20:25Z", "ms": 1005261625185.8329 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-11-07", "window": { "start": { "local": "2001-11-07T22:28:26+03:00", "utc": "2001-11-07T19:28:26Z", "ms": 1005161306226.6646 }, "end": { "local": "2001-11-07T22:28:26+03:00", "utc": "2001-11-07T19:28:26Z", "ms": 1005161306226.6646 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-11-08", "window": { "start": { "local": "2001-11-08T23:36:55+03:00", "utc": "2001-11-08T20:36:55Z", "ms": 1005251814878.3584 }, "end": { "local": "2001-11-08T23:36:55+03:00", "utc": "2001-11-08T20:36:55Z", "ms": 1005251814878.3584 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:18 on Thu 8 Nov to 02:20 on Fri 9 Nov.", "fact": "2001-11-08T01:17:41Z → 2001-11-08T23:20:25Z" }, { "step": "kaala", "text": "Moonrise is at 22:28 on the 7th and 23:37 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 7th and is on the 8th.", "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 9810 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Erbil, 2001: Thursday 8 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-08", "confidence": "determinate" } ], "quote": "In Erbil, Ahoyī Aṣṭamī (Ahoi Ashtami) 2001 falls on Thursday 8 November. Aṣṭamī runs from 04:18 on Thu 8 Nov to 02:20 on Fri 9 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-11-11", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32204, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-11-10T21:40:09+03:00", "utc": "2001-11-10T18:40:09Z", "ms": 1005417608728.2839 }, "end": { "local": "2001-11-11T19:05:16+03:00", "utc": "2001-11-11T16:05:16Z", "ms": 1005494716265.6981 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-10T21:40:09+03:00", "utc": "2001-11-10T18:40:09Z", "ms": 1005417608728.2839 }, "end": { "local": "2001-11-11T19:05:16+03:00", "utc": "2001-11-11T16:05:16Z", "ms": 1005494716265.6981 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-11-11", "window": { "start": { "local": "2001-11-11T06:36:53+03:00", "utc": "2001-11-11T03:36:53Z", "ms": 1005449813163.4961 }, "end": { "local": "2001-11-11T06:36:53+03:00", "utc": "2001-11-11T03:36:53Z", "ms": 1005449813163.4961 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-11-12", "window": { "start": { "local": "2001-11-12T06:37:54+03:00", "utc": "2001-11-12T03:37:54Z", "ms": 1005536274041.3733 }, "end": { "local": "2001-11-12T06:37:54+03:00", "utc": "2001-11-12T03:37:54Z", "ms": 1005536274041.3733 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:40 on Sat 10 Nov to 19:05 on Sun 11 Nov.", "fact": "2001-11-10T18:40:09Z → 2001-11-11T16:05:16Z" }, { "step": "kaala", "text": "Sunrise is at 06:37 on the 11th and 06:38 on the 12th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 11th and is not on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32204 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Erbil, 2001: Sunday 11 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-11", "confidence": "determinate" } ], "quote": "In Erbil, Ramā Ekādaśī 2001 falls on Sunday 11 November. Ekādaśī runs from 21:40 on Sat 10 Nov to 19:05 on Sun 11 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-11-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-11", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1040, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2001-11-11T19:05:16+03:00", "utc": "2001-11-11T16:05:16Z", "ms": 1005494716265.6981 }, "end": { "local": "2001-11-12T16:28:16+03:00", "utc": "2001-11-12T13:28:16Z", "ms": 1005571696470.227 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-11T19:05:16+03:00", "utc": "2001-11-11T16:05:16Z", "ms": 1005494716265.6981 }, "end": { "local": "2001-11-12T16:28:16+03:00", "utc": "2001-11-12T13:28:16Z", "ms": 1005571696470.227 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-11-11", "window": { "start": { "local": "2001-11-11T16:58:43+03:00", "utc": "2001-11-11T13:58:43Z", "ms": 1005487122582.572 }, "end": { "local": "2001-11-11T18:47:56+03:00", "utc": "2001-11-11T15:47:56Z", "ms": 1005493676110.4122 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "2001-11-12", "window": { "start": { "local": "2001-11-12T16:57:57+03:00", "utc": "2001-11-12T13:57:57Z", "ms": 1005573476710.1575 }, "end": { "local": "2001-11-12T18:47:24+03:00", "utc": "2001-11-12T15:47:24Z", "ms": 1005580044480.1573 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 19:05 on Sun 11 Nov to 16:28 on Mon 12 Nov.", "fact": "2001-11-11T16:05:16Z → 2001-11-12T13:28:16Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:59–18:48 on the 11th, 16:58–18:47 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 0 of 109 minutes on the 11th and 0 of 109 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: purvaviddha → tithi-day · margin 1040 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Erbil, 2001: Sunday 11 November.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "2001-11-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-11", "confidence": "determinate" } ], "quote": "In Erbil, Govatsa Dvādaśī (Vasu Baras) 2001 falls on Sunday 11 November. Dvādaśī runs from 19:05 on Sun 11 Nov to 16:28 on Mon 12 Nov, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1780, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-11-12T16:28:16+03:00", "utc": "2001-11-12T13:28:16Z", "ms": 1005571696470.227 }, "end": { "local": "2001-11-13T13:56:22+03:00", "utc": "2001-11-13T10:56:22Z", "ms": 1005648982174.7081 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-12T16:28:16+03:00", "utc": "2001-11-12T13:28:16Z", "ms": 1005571696470.227 }, "end": { "local": "2001-11-13T13:56:22+03:00", "utc": "2001-11-13T10:56:22Z", "ms": 1005648982174.7081 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-11-12", "window": { "start": { "local": "2001-11-12T16:57:57+03:00", "utc": "2001-11-12T13:57:57Z", "ms": 1005573476710.1575 }, "end": { "local": "2001-11-12T18:47:24+03:00", "utc": "2001-11-12T15:47:24Z", "ms": 1005580044480.1573 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "2001-11-13", "window": { "start": { "local": "2001-11-13T16:57:13+03:00", "utc": "2001-11-13T13:57:13Z", "ms": 1005659832508.7522 }, "end": { "local": "2001-11-13T18:46:54+03:00", "utc": "2001-11-13T15:46:54Z", "ms": 1005666414302.3213 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:28 on Mon 12 Nov to 13:56 on Tue 13 Nov.", "fact": "2001-11-12T13:28:16Z → 2001-11-13T10:56:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:58–18:47 on the 12th, 16:57–18:47 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 109 of 109 minutes on the 12th and 0 of 110 on the 13th.", "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 1780 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Erbil, 2001: Monday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-12", "confidence": "determinate" } ], "quote": "In Erbil, Yama Dīpadāna 2001 falls on Monday 12 November. Trayodaśī runs from 16:28 on Mon 12 Nov to 13:56 on Tue 13 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/pradosha-vrata?on=2001-11-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1780, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-11-12T16:28:16+03:00", "utc": "2001-11-12T13:28:16Z", "ms": 1005571696470.227 }, "end": { "local": "2001-11-13T13:56:22+03:00", "utc": "2001-11-13T10:56:22Z", "ms": 1005648982174.7081 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-12T16:28:16+03:00", "utc": "2001-11-12T13:28:16Z", "ms": 1005571696470.227 }, "end": { "local": "2001-11-13T13:56:22+03:00", "utc": "2001-11-13T10:56:22Z", "ms": 1005648982174.7081 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-11-12", "window": { "start": { "local": "2001-11-12T16:57:57+03:00", "utc": "2001-11-12T13:57:57Z", "ms": 1005573476710.1575 }, "end": { "local": "2001-11-12T18:47:24+03:00", "utc": "2001-11-12T15:47:24Z", "ms": 1005580044480.1573 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "2001-11-13", "window": { "start": { "local": "2001-11-13T16:57:13+03:00", "utc": "2001-11-13T13:57:13Z", "ms": 1005659832508.7522 }, "end": { "local": "2001-11-13T18:46:54+03:00", "utc": "2001-11-13T15:46:54Z", "ms": 1005666414302.3213 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:28 on Mon 12 Nov to 13:56 on Tue 13 Nov.", "fact": "2001-11-12T13:28:16Z → 2001-11-13T10:56:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:58–18:47 on the 12th, 16:57–18:47 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 109 of 109 minutes on the 12th and 0 of 110 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1780 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Monday 12 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": "2001-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-12", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Monday 12 November. Trayodaśī runs from 16:28 on Mon 12 Nov to 13:56 on Tue 13 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-11-12", "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/2001/shivaratri?on=2001-11-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34092, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-11-13T13:56:22+03:00", "utc": "2001-11-13T10:56:22Z", "ms": 1005648982174.7081 }, "end": { "local": "2001-11-14T11:37:31+03:00", "utc": "2001-11-14T08:37:31Z", "ms": 1005727051224.652 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-13T13:56:22+03:00", "utc": "2001-11-13T10:56:22Z", "ms": 1005648982174.7081 }, "end": { "local": "2001-11-14T11:37:31+03:00", "utc": "2001-11-14T08:37:31Z", "ms": 1005727051224.652 } }, "kaala": "nishita", "days": [ { "local_date": "2001-11-13", "window": { "start": { "local": "2001-11-13T23:24:34+03:00", "utc": "2001-11-13T20:24:34Z", "ms": 1005683074234.6365 }, "end": { "local": "2001-11-14T00:12:34+03:00", "utc": "2001-11-13T21:12:34Z", "ms": 1005685954234.6365 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-11-14", "window": { "start": { "local": "2001-11-14T23:24:43+03:00", "utc": "2001-11-14T20:24:43Z", "ms": 1005769483466.967 }, "end": { "local": "2001-11-15T00:12:43+03:00", "utc": "2001-11-14T21:12:43Z", "ms": 1005772363466.967 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:56 on Tue 13 Nov to 11:38 on Wed 14 Nov.", "fact": "2001-11-13T10:56:22Z → 2001-11-14T08:37:31Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:25–00:13 on the 13th, 23:25–00:13 on the 14th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34092 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Tuesday 13 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-13", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Tuesday 13 November. Caturdaśī runs from 13:56 on Tue 13 Nov to 11:38 on Wed 14 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-11-13", "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/2001/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17855, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-11-13T13:56:22+03:00", "utc": "2001-11-13T10:56:22Z", "ms": 1005648982174.7081 }, "end": { "local": "2001-11-14T11:37:31+03:00", "utc": "2001-11-14T08:37:31Z", "ms": 1005727051224.652 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-13T13:56:22+03:00", "utc": "2001-11-13T10:56:22Z", "ms": 1005648982174.7081 }, "end": { "local": "2001-11-14T11:37:31+03:00", "utc": "2001-11-14T08:37:31Z", "ms": 1005727051224.652 } }, "kaala": "arunodaya", "days": [ { "local_date": "2001-11-13", "window": { "start": { "local": "2001-11-13T04:49:27+03:00", "utc": "2001-11-13T01:49:27Z", "ms": 1005616167215.1567 }, "end": { "local": "2001-11-13T06:38:55+03:00", "utc": "2001-11-13T03:38:55Z", "ms": 1005622734985.1566 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "2001-11-14", "window": { "start": { "local": "2001-11-14T04:50:14+03:00", "utc": "2001-11-14T01:50:14Z", "ms": 1005702614166.9517 }, "end": { "local": "2001-11-14T06:39:56+03:00", "utc": "2001-11-14T03:39:56Z", "ms": 1005709195960.5208 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:56 on Tue 13 Nov to 11:38 on Wed 14 Nov.", "fact": "2001-11-13T10:56:22Z → 2001-11-14T08:37:31Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:49–06:39 on the 13th, 04:50–06:40 on the 14th.", "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 109 minutes on the 13th and 110 of 110 on the 14th.", "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 17855 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Erbil, 2001: Wednesday 14 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-14", "confidence": "determinate" } ], "quote": "In Erbil, Naraka Caturdaśī (Choti Diwali) 2001 falls on Wednesday 14 November. Caturdaśī runs from 13:56 on Tue 13 Nov to 11:38 on Wed 14 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19139, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2001-11-14T11:37:31+03:00", "utc": "2001-11-14T08:37:31Z", "ms": 1005727051224.652 }, "end": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-14T11:37:31+03:00", "utc": "2001-11-14T08:37:31Z", "ms": 1005727051224.652 }, "end": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-11-14", "window": { "start": { "local": "2001-11-14T16:56:30+03:00", "utc": "2001-11-14T13:56:30Z", "ms": 1005746190002.4669 }, "end": { "local": "2001-11-14T18:46:26+03:00", "utc": "2001-11-14T15:46:26Z", "ms": 1005752785593.0002 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "2001-11-15", "window": { "start": { "local": "2001-11-15T16:55:49+03:00", "utc": "2001-11-15T13:55:49Z", "ms": 1005832549213.8655 }, "end": { "local": "2001-11-15T18:45:58+03:00", "utc": "2001-11-15T15:45:58Z", "ms": 1005839158366.5066 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 11:38 on Wed 14 Nov to 09:40 on Thu 15 Nov.", "fact": "2001-11-14T08:37:31Z → 2001-11-15T06:39:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:57–18:46 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": "Amāvasyā must be present during pradoṣa. It covers 110 of 110 minutes on the 14th and 0 of 110 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19139 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Erbil, 2001: Wednesday 14 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-14", "confidence": "determinate" } ], "quote": "In Erbil, Lakṣmī Pūjā (Diwali) 2001 falls on Wednesday 14 November. Amāvasyā runs from 11:38 on Wed 14 Nov to 09:40 on Thu 15 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34036, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2001-11-14T11:37:31+03:00", "utc": "2001-11-14T08:37:31Z", "ms": 1005727051224.652 }, "end": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-14T11:37:31+03:00", "utc": "2001-11-14T08:37:31Z", "ms": 1005727051224.652 }, "end": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 } }, "kaala": "nishita", "days": [ { "local_date": "2001-11-13", "window": { "start": { "local": "2001-11-13T23:24:34+03:00", "utc": "2001-11-13T20:24:34Z", "ms": 1005683074234.6365 }, "end": { "local": "2001-11-14T00:12:34+03:00", "utc": "2001-11-13T21:12:34Z", "ms": 1005685954234.6365 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-11-14", "window": { "start": { "local": "2001-11-14T23:24:43+03:00", "utc": "2001-11-14T20:24:43Z", "ms": 1005769483466.967 }, "end": { "local": "2001-11-15T00:12:43+03:00", "utc": "2001-11-14T21:12:43Z", "ms": 1005772363466.967 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 11:38 on Wed 14 Nov to 09:40 on Thu 15 Nov.", "fact": "2001-11-14T08:37:31Z → 2001-11-15T06:39:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:25–00:13 on the 13th, 23:25–00:13 on the 14th.", "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 13th and 48 of 48 on the 14th.", "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 34036 s" }, { "step": "ruling", "text": "Kālī Pūjā, Erbil, 2001: Wednesday 14 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-14", "confidence": "determinate" } ], "quote": "In Erbil, Kālī Pūjā 2001 falls on Wednesday 14 November. Amāvasyā runs from 11:38 on Wed 14 Nov to 09:40 on Thu 15 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6264, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 }, "end": { "local": "2001-11-16T08:11:44+03:00", "utc": "2001-11-16T05:11:44Z", "ms": 1005887503845.0381 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 }, "end": { "local": "2001-11-16T08:11:44+03:00", "utc": "2001-11-16T05:11:44Z", "ms": 1005887503845.0381 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-11-15", "window": { "start": { "local": "2001-11-15T11:24:23+03:00", "utc": "2001-11-15T08:24:23Z", "ms": 1005812663072.6663 }, "end": { "local": "2001-11-15T12:12:23+03:00", "utc": "2001-11-15T09:12:23Z", "ms": 1005815543072.6663 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-11-16", "window": { "start": { "local": "2001-11-16T11:24:34+03:00", "utc": "2001-11-16T08:24:34Z", "ms": 1005899074012.5206 }, "end": { "local": "2001-11-16T12:12:34+03:00", "utc": "2001-11-16T09:12:34Z", "ms": 1005901954012.5206 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 09:40 on Thu 15 Nov to 08:12 on Fri 16 Nov.", "fact": "2001-11-15T06:39:59Z → 2001-11-16T05:11:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 15th, 11:25–12:13 on the 16th.", "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 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6264 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Erbil, 2001: Thursday 15 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govardhana-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-15", "confidence": "determinate" } ], "quote": "In Erbil, Govardhana Pūjā 2001 falls on Thursday 15 November. Pratipadā runs from 09:40 on Thu 15 Nov to 08:12 on Fri 16 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26150, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 }, "end": { "local": "2001-11-16T08:11:44+03:00", "utc": "2001-11-16T05:11:44Z", "ms": 1005887503845.0381 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 }, "end": { "local": "2001-11-16T08:11:44+03:00", "utc": "2001-11-16T05:11:44Z", "ms": 1005887503845.0381 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-11-15", "window": { "start": { "local": "2001-11-15T16:55:49+03:00", "utc": "2001-11-15T13:55:49Z", "ms": 1005832549213.8655 }, "end": { "local": "2001-11-15T18:45:58+03:00", "utc": "2001-11-15T15:45:58Z", "ms": 1005839158366.5066 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "2001-11-16", "window": { "start": { "local": "2001-11-16T16:55:10+03:00", "utc": "2001-11-16T13:55:10Z", "ms": 1005918910166.3671 }, "end": { "local": "2001-11-16T18:45:33+03:00", "utc": "2001-11-16T15:45:33Z", "ms": 1005925532637.9086 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 09:40 on Thu 15 Nov to 08:12 on Fri 16 Nov.", "fact": "2001-11-15T06:39:59Z → 2001-11-16T05:11:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:56–18:46 on the 15th, 16:55–18:46 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 110 of 110 minutes on the 15th and 0 of 110 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: unstated → only-day · margin 26150 s" }, { "step": "ruling", "text": "Bali Pūjā, Erbil, 2001: Thursday 15 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-15", "confidence": "determinate" } ], "quote": "In Erbil, Bali Pūjā 2001 falls on Thursday 15 November. Pratipadā runs from 09:40 on Thu 15 Nov to 08:12 on Fri 16 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11570, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2001-11-16T08:11:44+03:00", "utc": "2001-11-16T05:11:44Z", "ms": 1005887503845.0381 }, "end": { "local": "2001-11-17T07:19:44+03:00", "utc": "2001-11-17T04:19:44Z", "ms": 1005970784009.8746 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-16T08:11:44+03:00", "utc": "2001-11-16T05:11:44Z", "ms": 1005887503845.0381 }, "end": { "local": "2001-11-17T07:19:44+03:00", "utc": "2001-11-17T04:19:44Z", "ms": 1005970784009.8746 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-11-16", "window": { "start": { "local": "2001-11-16T11:24:34+03:00", "utc": "2001-11-16T08:24:34Z", "ms": 1005899074012.5206 }, "end": { "local": "2001-11-16T12:12:34+03:00", "utc": "2001-11-16T09:12:34Z", "ms": 1005901954012.5206 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-11-17", "window": { "start": { "local": "2001-11-17T11:24:46+03:00", "utc": "2001-11-17T08:24:46Z", "ms": 1005985485792.2462 }, "end": { "local": "2001-11-17T12:12:46+03:00", "utc": "2001-11-17T09:12:46Z", "ms": 1005988365792.2462 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 08:12 on Fri 16 Nov to 07:20 on Sat 17 Nov.", "fact": "2001-11-16T05:11:44Z → 2001-11-17T04:19:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 16th, 11:25–12:13 on the 17th.", "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 16th and 0 of 48 on the 17th.", "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 11570 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Erbil, 2001: Friday 16 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dvitiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-16", "confidence": "determinate" } ], "quote": "In Erbil, Yama Dvitīyā (Bhai Dooj) 2001 falls on Friday 16 November. Dvitīyā runs from 08:12 on Fri 16 Nov to 07:20 on Sat 17 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-16", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1555, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 }, "end": { "local": "2001-11-16T08:11:44+03:00", "utc": "2001-11-16T05:11:44Z", "ms": 1005887503845.0381 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-15T09:39:59+03:00", "utc": "2001-11-15T06:39:59Z", "ms": 1005806398995.0366 }, "end": { "local": "2001-11-16T08:11:44+03:00", "utc": "2001-11-16T05:11:44Z", "ms": 1005887503845.0381 } }, "kaala": "purvahna", "days": [ { "local_date": "2001-11-15", "window": { "start": { "local": "2001-11-15T06:40:57+03:00", "utc": "2001-11-15T03:40:57Z", "ms": 1005795656931.467 }, "end": { "local": "2001-11-15T10:05:54+03:00", "utc": "2001-11-15T07:05:54Z", "ms": 1005807954358.9332 } }, "covered_min": 26, "window_min": 205, "qualifies": true }, { "local_date": "2001-11-16", "window": { "start": { "local": "2001-11-16T06:41:58+03:00", "utc": "2001-11-16T03:41:58Z", "ms": 1005882117858.6742 }, "end": { "local": "2001-11-16T10:06:22+03:00", "utc": "2001-11-16T07:06:22Z", "ms": 1005894381961.2385 } }, "covered_min": 90, "window_min": 204, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 09:40 on Thu 15 Nov to 08:12 on Fri 16 Nov.", "fact": "2001-11-15T06:39:59Z → 2001-11-16T05:11:44Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:41–10:06 on the 15th, 06:42–10:06 on the 16th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 26 of 205 minutes on the 15th and 90 of 204 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1555 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Erbil, 2001: Friday 16 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-16", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-16", "confidence": "boundary" } ], "quote": "In Erbil, Dyūta Pratipad 2001 falls on Friday 16 November. Pratipadā runs from 09:40 on Thu 15 Nov to 08:12 on Fri 16 Nov and covers 90 of 204 minutes of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 26 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13389, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-11-18T07:09:05+03:00", "utc": "2001-11-18T04:09:05Z", "ms": 1006056545375.9696 }, "end": { "local": "2001-11-19T07:42:03+03:00", "utc": "2001-11-19T04:42:03Z", "ms": 1006144923196.3724 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-18T07:09:05+03:00", "utc": "2001-11-18T04:09:05Z", "ms": 1006056545375.9696 }, "end": { "local": "2001-11-19T07:42:03+03:00", "utc": "2001-11-19T04:42:03Z", "ms": 1006144923196.3724 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-11-18", "window": { "start": { "local": "2001-11-18T11:24:58+03:00", "utc": "2001-11-18T08:24:58Z", "ms": 1006071898402.4678 }, "end": { "local": "2001-11-18T12:12:58+03:00", "utc": "2001-11-18T09:12:58Z", "ms": 1006074778402.4678 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-11-19", "window": { "start": { "local": "2001-11-19T11:25:12+03:00", "utc": "2001-11-19T08:25:12Z", "ms": 1006158311833.4196 }, "end": { "local": "2001-11-19T12:13:12+03:00", "utc": "2001-11-19T09:13:12Z", "ms": 1006161191833.4196 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:09 on Sun 18 Nov to 07:42 on Mon 19 Nov.", "fact": "2001-11-18T04:09:05Z → 2001-11-19T04:42:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 18th, 11:25–12:13 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13389 s" }, { "step": "ruling", "text": "Nāga Caturthī, Erbil, 2001: Sunday 18 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-18", "confidence": "determinate" } ], "quote": "In Erbil, Nāga Caturthī 2001 falls on Sunday 18 November. Caturthī runs from 07:09 on Sun 18 Nov to 07:42 on Mon 19 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/vinayaka-chaturthi?on=2001-11-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13389, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-11-18T07:09:05+03:00", "utc": "2001-11-18T04:09:05Z", "ms": 1006056545375.9696 }, "end": { "local": "2001-11-19T07:42:03+03:00", "utc": "2001-11-19T04:42:03Z", "ms": 1006144923196.3724 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-18T07:09:05+03:00", "utc": "2001-11-18T04:09:05Z", "ms": 1006056545375.9696 }, "end": { "local": "2001-11-19T07:42:03+03:00", "utc": "2001-11-19T04:42:03Z", "ms": 1006144923196.3724 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-11-18", "window": { "start": { "local": "2001-11-18T11:24:58+03:00", "utc": "2001-11-18T08:24:58Z", "ms": 1006071898402.4678 }, "end": { "local": "2001-11-18T12:12:58+03:00", "utc": "2001-11-18T09:12:58Z", "ms": 1006074778402.4678 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-11-19", "window": { "start": { "local": "2001-11-19T11:25:12+03:00", "utc": "2001-11-19T08:25:12Z", "ms": 1006158311833.4196 }, "end": { "local": "2001-11-19T12:13:12+03:00", "utc": "2001-11-19T09:13:12Z", "ms": 1006161191833.4196 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:09 on Sun 18 Nov to 07:42 on Mon 19 Nov.", "fact": "2001-11-18T04:09:05Z → 2001-11-19T04:42:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 18th, 11:25–12:13 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13389 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Sunday 18 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": "2001-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-18", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Sunday 18 November. Caturthī runs from 07:09 on Sun 18 Nov to 07:42 on Mon 19 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-11-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2233, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2001-11-20T08:57:07+03:00", "utc": "2001-11-20T05:57:07Z", "ms": 1006235827357.3102 }, "end": { "local": "2001-11-21T10:48:28+03:00", "utc": "2001-11-21T07:48:28Z", "ms": 1006328908492.7903 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-20T08:57:07+03:00", "utc": "2001-11-20T05:57:07Z", "ms": 1006235827357.3102 }, "end": { "local": "2001-11-21T10:48:28+03:00", "utc": "2001-11-21T07:48:28Z", "ms": 1006328908492.7903 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-11-20", "window": { "start": { "local": "2001-11-20T11:25:26+03:00", "utc": "2001-11-20T08:25:26Z", "ms": 1006244726074.997 }, "end": { "local": "2001-11-20T12:13:26+03:00", "utc": "2001-11-20T09:13:26Z", "ms": 1006247606074.997 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-11-21", "window": { "start": { "local": "2001-11-21T11:25:41+03:00", "utc": "2001-11-21T08:25:41Z", "ms": 1006331141116.719 }, "end": { "local": "2001-11-21T12:13:41+03:00", "utc": "2001-11-21T09:13:41Z", "ms": 1006334021116.719 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:57 on Tue 20 Nov to 10:48 on Wed 21 Nov.", "fact": "2001-11-20T05:57:07Z → 2001-11-21T07:48:28Z" }, { "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": "Ṣaṣṭhī 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: unstated → only-day · margin 2233 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Erbil, 2001: Tuesday 20 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-20", "confidence": "boundary" } ], "quote": "In Erbil, Sūrya Ṣaṣṭhī (Chhath) 2001 falls on Tuesday 20 November. Ṣaṣṭhī runs from 08:57 on Tue 20 Nov to 10:48 on Wed 21 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3129, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2001-11-22T13:06:06+03:00", "utc": "2001-11-22T10:06:06Z", "ms": 1006423565886.5452 }, "end": { "local": "2001-11-23T15:36:51+03:00", "utc": "2001-11-23T12:36:51Z", "ms": 1006519010837.8673 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-22T13:06:06+03:00", "utc": "2001-11-22T10:06:06Z", "ms": 1006423565886.5452 }, "end": { "local": "2001-11-23T15:36:51+03:00", "utc": "2001-11-23T12:36:51Z", "ms": 1006519010837.8673 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-11-22", "window": { "start": { "local": "2001-11-22T11:25:57+03:00", "utc": "2001-11-22T08:25:57Z", "ms": 1006417556947.6492 }, "end": { "local": "2001-11-22T12:13:57+03:00", "utc": "2001-11-22T09:13:57Z", "ms": 1006420436947.6492 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-11-23", "window": { "start": { "local": "2001-11-23T11:26:14+03:00", "utc": "2001-11-23T08:26:14Z", "ms": 1006503973556.3112 }, "end": { "local": "2001-11-23T12:14:14+03:00", "utc": "2001-11-23T09:14:14Z", "ms": 1006506853556.3112 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 13:06 on Thu 22 Nov to 15:37 on Fri 23 Nov.", "fact": "2001-11-22T10:06:06Z → 2001-11-23T12:36:51Z" }, { "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": "Aṣṭamī 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3129 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Erbil, 2001: Friday 23 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gopashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Gopastami, Gosthastami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-23", "confidence": "determinate" } ], "quote": "In Erbil, Gopāṣṭamī 2001 falls on Friday 23 November. Aṣṭamī runs from 13:06 on Thu 22 Nov to 15:37 on Fri 23 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19622, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2001-11-23T15:36:51+03:00", "utc": "2001-11-23T12:36:51Z", "ms": 1006519010837.8673 }, "end": { "local": "2001-11-24T18:06:19+03:00", "utc": "2001-11-24T15:06:19Z", "ms": 1006614379054.2728 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-23T15:36:51+03:00", "utc": "2001-11-23T12:36:51Z", "ms": 1006519010837.8673 }, "end": { "local": "2001-11-24T18:06:19+03:00", "utc": "2001-11-24T15:06:19Z", "ms": 1006614379054.2728 } }, "kaala": "purvahna", "days": [ { "local_date": "2001-11-23", "window": { "start": { "local": "2001-11-23T06:49:00+03:00", "utc": "2001-11-23T03:49:00Z", "ms": 1006487339716.1705 }, "end": { "local": "2001-11-23T10:09:49+03:00", "utc": "2001-11-23T07:09:49Z", "ms": 1006499388942.9309 } }, "covered_min": 0, "window_min": 201, "qualifies": false }, { "local_date": "2001-11-24", "window": { "start": { "local": "2001-11-24T06:49:59+03:00", "utc": "2001-11-24T03:49:59Z", "ms": 1006573798817.2557 }, "end": { "local": "2001-11-24T10:10:20+03:00", "utc": "2001-11-24T07:10:20Z", "ms": 1006585820226.1719 } }, "covered_min": 200, "window_min": 200, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 15:37 on Fri 23 Nov to 18:06 on Sat 24 Nov.", "fact": "2001-11-23T12:36:51Z → 2001-11-24T15:06:19Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:49–10:10 on the 23rd, 06:50–10:10 on the 24th.", "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 201 minutes on the 23rd and 200 of 200 on the 24th.", "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 19622 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Erbil, 2001: Saturday 24 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-24", "confidence": "determinate" } ], "quote": "In Erbil, Akṣaya Navamī (Amla Navami) 2001 falls on Saturday 24 November. Navamī runs from 15:37 on Fri 23 Nov to 18:06 on Sat 24 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12157, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2001-11-23T15:36:51+03:00", "utc": "2001-11-23T12:36:51Z", "ms": 1006519010837.8673 }, "end": { "local": "2001-11-24T18:06:19+03:00", "utc": "2001-11-24T15:06:19Z", "ms": 1006614379054.2728 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-23T15:36:51+03:00", "utc": "2001-11-23T12:36:51Z", "ms": 1006519010837.8673 }, "end": { "local": "2001-11-24T18:06:19+03:00", "utc": "2001-11-24T15:06:19Z", "ms": 1006614379054.2728 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-11-23", "window": { "start": { "local": "2001-11-23T11:26:14+03:00", "utc": "2001-11-23T08:26:14Z", "ms": 1006503973556.3112 }, "end": { "local": "2001-11-23T12:14:14+03:00", "utc": "2001-11-23T09:14:14Z", "ms": 1006506853556.3112 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-11-24", "window": { "start": { "local": "2001-11-24T11:26:31+03:00", "utc": "2001-11-24T08:26:31Z", "ms": 1006590390930.6299 }, "end": { "local": "2001-11-24T12:14:31+03:00", "utc": "2001-11-24T09:14:31Z", "ms": 1006593270930.6299 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 15:37 on Fri 23 Nov to 18:06 on Sat 24 Nov.", "fact": "2001-11-23T12:36:51Z → 2001-11-24T15:06:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 23rd, 11:27–12:15 on the 24th.", "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 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: purvaviddha → only-day · margin 12157 s" }, { "step": "ruling", "text": "Durgā Navamī, Erbil, 2001: Saturday 24 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-11-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-24", "confidence": "determinate" } ], "quote": "In Erbil, Durgā Navamī 2001 falls on Saturday 24 November. Navamī runs from 15:37 on Fri 23 Nov to 18:06 on Sat 24 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-11-26", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31355, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-11-25T20:21:02+03:00", "utc": "2001-11-25T17:21:02Z", "ms": 1006708862170.0613 }, "end": { "local": "2001-11-26T22:10:18+03:00", "utc": "2001-11-26T19:10:18Z", "ms": 1006801818281.3054 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-25T20:21:02+03:00", "utc": "2001-11-25T17:21:02Z", "ms": 1006708862170.0613 }, "end": { "local": "2001-11-26T22:10:18+03:00", "utc": "2001-11-26T19:10:18Z", "ms": 1006801818281.3054 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-11-26", "window": { "start": { "local": "2001-11-26T06:51:56+03:00", "utc": "2001-11-26T03:51:56Z", "ms": 1006746715719.2753 }, "end": { "local": "2001-11-26T06:51:56+03:00", "utc": "2001-11-26T03:51:56Z", "ms": 1006746715719.2753 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-11-27", "window": { "start": { "local": "2001-11-27T06:52:53+03:00", "utc": "2001-11-27T03:52:53Z", "ms": 1006833173433.5416 }, "end": { "local": "2001-11-27T06:52:53+03:00", "utc": "2001-11-27T03:52:53Z", "ms": 1006833173433.5416 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:21 on Sun 25 Nov to 22:10 on Mon 26 Nov.", "fact": "2001-11-25T17:21:02Z → 2001-11-26T19:10:18Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 26th and 06:53 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31355 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Erbil, 2001: Monday 26 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": "2001-11-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-26", "confidence": "determinate" } ], "quote": "In Erbil, Prabodhinī Ekādaśī 2001 falls on Monday 26 November. Ekādaśī runs from 20:21 on Sun 25 Nov to 22:10 on Mon 26 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-11-26", "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/2001/pradosha-vrata?on=2001-11-28", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17081, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-11-27T23:27:13+03:00", "utc": "2001-11-27T20:27:13Z", "ms": 1006892832642.3906 }, "end": { "local": "2001-11-29T00:08:43+03:00", "utc": "2001-11-28T21:08:43Z", "ms": 1006981723372.8304 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-27T23:27:13+03:00", "utc": "2001-11-27T20:27:13Z", "ms": 1006892832642.3906 }, "end": { "local": "2001-11-29T00:08:43+03:00", "utc": "2001-11-28T21:08:43Z", "ms": 1006981723372.8304 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-11-27", "window": { "start": { "local": "2001-11-27T16:50:02+03:00", "utc": "2001-11-27T13:50:02Z", "ms": 1006869001601.3583 }, "end": { "local": "2001-11-27T18:42:32+03:00", "utc": "2001-11-27T15:42:32Z", "ms": 1006875752134.354 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "2001-11-28", "window": { "start": { "local": "2001-11-28T16:49:45+03:00", "utc": "2001-11-28T13:49:45Z", "ms": 1006955385043.91 }, "end": { "local": "2001-11-28T18:42:25+03:00", "utc": "2001-11-28T15:42:25Z", "ms": 1006962145327.6417 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:27 on Tue 27 Nov to 00:09 on Thu 29 Nov.", "fact": "2001-11-27T20:27:13Z → 2001-11-28T21:08:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:50–18:43 on the 27th, 16:50–18:42 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 113 minutes on the 27th and 113 of 113 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17081 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Wednesday 28 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": "2001-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-28", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Wednesday 28 November. Trayodaśī runs from 23:27 on Tue 27 Nov to 00:09 on Thu 29 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-11-28", "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/2001/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40404, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-11-30T00:15:07+03:00", "utc": "2001-11-29T21:15:07Z", "ms": 1007068506673.7412 }, "end": { "local": "2001-11-30T23:49:03+03:00", "utc": "2001-11-30T20:49:03Z", "ms": 1007153342834.8157 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-30T00:15:07+03:00", "utc": "2001-11-29T21:15:07Z", "ms": 1007068506673.7412 }, "end": { "local": "2001-11-30T23:49:03+03:00", "utc": "2001-11-30T20:49:03Z", "ms": 1007153342834.8157 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-11-30", "window": { "start": { "local": "2001-11-30T11:28:31+03:00", "utc": "2001-11-30T08:28:31Z", "ms": 1007108910502.7098 }, "end": { "local": "2001-11-30T12:16:31+03:00", "utc": "2001-11-30T09:16:31Z", "ms": 1007111790502.7098 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-12-01", "window": { "start": { "local": "2001-12-01T11:28:53+03:00", "utc": "2001-12-01T08:28:53Z", "ms": 1007195332848.5939 }, "end": { "local": "2001-12-01T12:16:53+03:00", "utc": "2001-12-01T09:16:53Z", "ms": 1007198212848.5939 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:15 on Fri 30 Nov to 23:49 on Fri 30 Nov.", "fact": "2001-11-29T21:15:07Z → 2001-11-30T20:49:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 30th, 11:29–12:17 on the 1st.", "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 30th and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40404 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Erbil, 2001: Friday 30 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": "2001-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-30", "confidence": "determinate" } ], "quote": "In Erbil, Kārtikī Pūrṇimā 2001 falls on Friday 30 November. Pūrṇimā runs from 00:15 on Fri 30 Nov to 23:49 on Fri 30 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-11-30", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 90, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-11-30T00:15:07+03:00", "utc": "2001-11-29T21:15:07Z", "ms": 1007068506673.7412 }, "end": { "local": "2001-11-30T23:49:03+03:00", "utc": "2001-11-30T20:49:03Z", "ms": 1007153342834.8157 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2001-11-30T00:15:07+03:00", "utc": "2001-11-29T21:15:07Z", "ms": 1007068506673.7412 }, "end": { "local": "2001-11-30T23:49:03+03:00", "utc": "2001-11-30T20:49:03Z", "ms": 1007153342834.8157 } }, "kaala": "nishita", "days": [ { "local_date": "2001-11-29", "window": { "start": { "local": "2001-11-29T23:28:37+03:00", "utc": "2001-11-29T20:28:37Z", "ms": 1007065716790.5037 }, "end": { "local": "2001-11-30T00:16:37+03:00", "utc": "2001-11-29T21:16:37Z", "ms": 1007068596790.5037 } }, "covered_min": 2, "window_min": 48, "qualifies": true }, { "local_date": "2001-11-30", "window": { "start": { "local": "2001-11-30T23:28:58+03:00", "utc": "2001-11-30T20:28:58Z", "ms": 1007152138132.4572 }, "end": { "local": "2001-12-01T00:16:58+03:00", "utc": "2001-11-30T21:16:58Z", "ms": 1007155018132.4572 } }, "covered_min": 20, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:15 on Fri 30 Nov to 23:49 on Fri 30 Nov.", "fact": "2001-11-29T21:15:07Z → 2001-11-30T20:49:03Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:29–00:17 on the 29th, 23:29–00:17 on the 30th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 2 of 48 minutes on the 29th and 20 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both nights qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 90 s < 300 s" }, { "step": "ruling", "text": "Rāsayātrā, Erbil, 2001: Friday 30 November.", "fact": "confidence: boundary (margin)" } ], "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": "2001-11-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-11-30", "confidence": "determinate" } ], "quote": "In Erbil, Rāsayātrā 2001 falls on Friday 30 November. Pūrṇimā runs from 00:15 on Fri 30 Nov to 23:49 on Fri 30 Nov and covers 20 of 48 minutes of niśītha that night. It also reaches the previous night for 2 minutes; by the rule the second night is taken. It is 1 min 30 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/sankashta-chaturthi?on=2001-12-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-03", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2711, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-12-03T20:00:27+03:00", "utc": "2001-12-03T17:00:27Z", "ms": 1007398827292.6866 }, "end": { "local": "2001-12-04T18:10:13+03:00", "utc": "2001-12-04T15:10:13Z", "ms": 1007478612826.9166 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-03T20:00:27+03:00", "utc": "2001-12-03T17:00:27Z", "ms": 1007398827292.6866 }, "end": { "local": "2001-12-04T18:10:13+03:00", "utc": "2001-12-04T15:10:13Z", "ms": 1007478612826.9166 } }, "kaala": "moonrise", "days": [ { "local_date": "2001-12-03", "window": { "start": { "local": "2001-12-03T19:15:16+03:00", "utc": "2001-12-03T16:15:16Z", "ms": 1007396116447.9037 }, "end": { "local": "2001-12-03T19:15:16+03:00", "utc": "2001-12-03T16:15:16Z", "ms": 1007396116447.9037 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-12-04", "window": { "start": { "local": "2001-12-04T20:20:08+03:00", "utc": "2001-12-04T17:20:08Z", "ms": 1007486408198.2421 }, "end": { "local": "2001-12-04T20:20:08+03:00", "utc": "2001-12-04T17:20:08Z", "ms": 1007486408198.2421 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:00 on Mon 3 Dec to 18:10 on Tue 4 Dec.", "fact": "2001-12-03T17:00:27Z → 2001-12-04T15:10:13Z" }, { "step": "kaala", "text": "Moonrise is at 19:15 on the 3rd and 20:20 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 3rd and is not on the 4th.", "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 2711 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Erbil, 2001: Monday 3 December.", "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": "2001-12-03", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-03", "confidence": "boundary" } ], "quote": "In Erbil, Saṅkaṣṭa Caturthī (Sankatahara Chaturthi) 2001 falls on Monday 3 December. Caturthī runs from 20:00 on Mon 3 Dec to 18:10 on Tue 4 Dec, and is current at moonrise on neither day.", "cite": "https://ahargana.org/erbil/festivals/2001/sankashta-chaturthi?on=2001-12-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/ekadashi?on=2001-12-10", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4764, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-12-10T05:44:54+03:00", "utc": "2001-12-10T02:44:54Z", "ms": 1007952294228.6035 }, "end": { "local": "2001-12-11T03:56:44+03:00", "utc": "2001-12-11T00:56:44Z", "ms": 1008032203504.9382 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-10T05:44:54+03:00", "utc": "2001-12-10T02:44:54Z", "ms": 1007952294228.6035 }, "end": { "local": "2001-12-11T03:56:44+03:00", "utc": "2001-12-11T00:56:44Z", "ms": 1008032203504.9382 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-12-10", "window": { "start": { "local": "2001-12-10T07:04:18+03:00", "utc": "2001-12-10T04:04:18Z", "ms": 1007957057828.65 }, "end": { "local": "2001-12-10T07:04:18+03:00", "utc": "2001-12-10T04:04:18Z", "ms": 1007957057828.65 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2001-12-11", "window": { "start": { "local": "2001-12-11T07:05:04+03:00", "utc": "2001-12-11T04:05:04Z", "ms": 1008043503803.2434 }, "end": { "local": "2001-12-11T07:05:04+03:00", "utc": "2001-12-11T04:05:04Z", "ms": 1008043503803.2434 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:45 on Mon 10 Dec to 03:57 on Tue 11 Dec.", "fact": "2001-12-10T02:44:54Z → 2001-12-11T00:56:44Z" }, { "step": "kaala", "text": "Sunrise is at 07:04 on the 10th and 07:05 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 10th and is not on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4764 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Erbil, 2001: Monday 10 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": "2001-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-10", "confidence": "determinate" } ], "quote": "In Erbil, Utpannā Ekādaśī 2001 falls on Monday 10 December. Ekādaśī runs from 05:45 on Mon 10 Dec to 03:57 on Tue 11 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-12-10", "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/2001/pradosha-vrata?on=2001-12-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22969, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-12-12T02:22:30+03:00", "utc": "2001-12-11T23:22:30Z", "ms": 1008112949663.1893 }, "end": { "local": "2001-12-13T01:06:31+03:00", "utc": "2001-12-12T22:06:31Z", "ms": 1008194791155.5759 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-12T02:22:30+03:00", "utc": "2001-12-11T23:22:30Z", "ms": 1008112949663.1893 }, "end": { "local": "2001-12-13T01:06:31+03:00", "utc": "2001-12-12T22:06:31Z", "ms": 1008194791155.5759 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-12-11", "window": { "start": { "local": "2001-12-11T16:49:13+03:00", "utc": "2001-12-11T13:49:13Z", "ms": 1008078553331.1777 }, "end": { "local": "2001-12-11T18:43:26+03:00", "utc": "2001-12-11T15:43:26Z", "ms": 1008085406030.9036 } }, "covered_min": 0, "window_min": 114, "qualifies": false }, { "local_date": "2001-12-12", "window": { "start": { "local": "2001-12-12T16:49:25+03:00", "utc": "2001-12-12T13:49:25Z", "ms": 1008164965055.5532 }, "end": { "local": "2001-12-12T18:43:42+03:00", "utc": "2001-12-12T15:43:42Z", "ms": 1008171821995.4349 } }, "covered_min": 114, "window_min": 114, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:22 on Wed 12 Dec to 01:07 on Thu 13 Dec.", "fact": "2001-12-11T23:22:30Z → 2001-12-12T22:06:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:49–18:43 on the 11th, 16:49–18:44 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 114 minutes on the 11th and 114 of 114 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22969 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Erbil, 2001: Wednesday 12 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-12-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-12", "confidence": "determinate" } ], "quote": "In Erbil, Kṛṣṇa Pradoṣa Vrata 2001 falls on Wednesday 12 December. Trayodaśī runs from 02:22 on Wed 12 Dec to 01:07 on Thu 13 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-12-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/shivaratri?on=2001-12-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 546, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2001-12-13T01:06:31+03:00", "utc": "2001-12-12T22:06:31Z", "ms": 1008194791155.5759 }, "end": { "local": "2001-12-14T00:13:20+03:00", "utc": "2001-12-13T21:13:20Z", "ms": 1008278000107.9683 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-13T01:06:31+03:00", "utc": "2001-12-12T22:06:31Z", "ms": 1008194791155.5759 }, "end": { "local": "2001-12-14T00:13:20+03:00", "utc": "2001-12-13T21:13:20Z", "ms": 1008278000107.9683 } }, "kaala": "nishita", "days": [ { "local_date": "2001-12-12", "window": { "start": { "local": "2001-12-12T23:33:59+03:00", "utc": "2001-12-12T20:33:59Z", "ms": 1008189238580.1095 }, "end": { "local": "2001-12-13T00:21:59+03:00", "utc": "2001-12-12T21:21:59Z", "ms": 1008192118580.1095 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-12-13", "window": { "start": { "local": "2001-12-13T23:34:27+03:00", "utc": "2001-12-13T20:34:27Z", "ms": 1008275666542.1448 }, "end": { "local": "2001-12-14T00:22:27+03:00", "utc": "2001-12-13T21:22:27Z", "ms": 1008278546542.1448 } }, "covered_min": 39, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:07 on Thu 13 Dec to 00:13 on Fri 14 Dec.", "fact": "2001-12-12T22:06:31Z → 2001-12-13T21:13:20Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:34–00:22 on the 12th, 23:34–00:22 on the 13th.", "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 12th and 39 of 48 on the 13th.", "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 546 s" }, { "step": "ruling", "text": "Śivarātri, Erbil, 2001: Thursday 13 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": "2001-12-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-13", "confidence": "determinate" } ], "quote": "In Erbil, Śivarātri (Masik Shivaratri) 2001 falls on Thursday 13 December. Caturdaśī runs from 01:07 on Thu 13 Dec to 00:13 on Fri 14 Dec and covers 39 of 48 minutes of niśītha that night.", "cite": "https://ahargana.org/erbil/festivals/2001/shivaratri?on=2001-12-13", "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/2001/vinayaka-chaturthi?on=2001-12-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29240, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2001-12-18T01:44:33+03:00", "utc": "2001-12-17T22:44:33Z", "ms": 1008629072949.591 }, "end": { "local": "2001-12-19T03:29:43+03:00", "utc": "2001-12-19T00:29:43Z", "ms": 1008721782568.0287 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-18T01:44:33+03:00", "utc": "2001-12-17T22:44:33Z", "ms": 1008629072949.591 }, "end": { "local": "2001-12-19T03:29:43+03:00", "utc": "2001-12-19T00:29:43Z", "ms": 1008721782568.0287 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-12-18", "window": { "start": { "local": "2001-12-18T11:36:33+03:00", "utc": "2001-12-18T08:36:33Z", "ms": 1008664592647.8009 }, "end": { "local": "2001-12-18T12:24:33+03:00", "utc": "2001-12-18T09:24:33Z", "ms": 1008667472647.8009 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-12-19", "window": { "start": { "local": "2001-12-19T11:37:03+03:00", "utc": "2001-12-19T08:37:03Z", "ms": 1008751022660.3235 }, "end": { "local": "2001-12-19T12:25:03+03:00", "utc": "2001-12-19T09:25:03Z", "ms": 1008753902660.3235 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:45 on Tue 18 Dec to 03:30 on Wed 19 Dec.", "fact": "2001-12-17T22:44:33Z → 2001-12-19T00:29:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 18th, 11:37–12:25 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29240 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Erbil, 2001: Tuesday 18 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": "2001-12-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-18", "confidence": "determinate" } ], "quote": "In Erbil, Vināyaka Caturthī 2001 falls on Tuesday 18 December. Caturthī runs from 01:45 on Tue 18 Dec to 03:30 on Wed 19 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/vinayaka-chaturthi?on=2001-12-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21385, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2001-12-19T03:29:43+03:00", "utc": "2001-12-19T00:29:43Z", "ms": 1008721782568.0287 }, "end": { "local": "2001-12-20T05:41:08+03:00", "utc": "2001-12-20T02:41:08Z", "ms": 1008816067611.2214 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-19T03:29:43+03:00", "utc": "2001-12-19T00:29:43Z", "ms": 1008721782568.0287 }, "end": { "local": "2001-12-20T05:41:08+03:00", "utc": "2001-12-20T02:41:08Z", "ms": 1008816067611.2214 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-12-19", "window": { "start": { "local": "2001-12-19T11:37:03+03:00", "utc": "2001-12-19T08:37:03Z", "ms": 1008751022660.3235 }, "end": { "local": "2001-12-19T12:25:03+03:00", "utc": "2001-12-19T09:25:03Z", "ms": 1008753902660.3235 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-12-20", "window": { "start": { "local": "2001-12-20T11:37:33+03:00", "utc": "2001-12-20T08:37:33Z", "ms": 1008837452776.1514 }, "end": { "local": "2001-12-20T12:25:33+03:00", "utc": "2001-12-20T09:25:33Z", "ms": 1008840332776.1514 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:30 on Wed 19 Dec to 05:41 on Thu 20 Dec.", "fact": "2001-12-19T00:29:43Z → 2001-12-20T02:41:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 19th, 11:38–12:26 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21385 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Erbil, 2001: Wednesday 19 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami-margashirsha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (2nd) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-12-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-19", "confidence": "determinate" } ], "quote": "In Erbil, Nāga Pañcamī (Mārgaśīrṣa) 2001 falls on Wednesday 19 December. Pañcamī runs from 03:30 on Wed 19 Dec to 05:41 on Thu 20 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12515, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2001-12-20T05:41:08+03:00", "utc": "2001-12-20T02:41:08Z", "ms": 1008816067611.2214 }, "end": { "local": "2001-12-21T08:09:28+03:00", "utc": "2001-12-21T05:09:28Z", "ms": 1008911368065.4724 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-20T05:41:08+03:00", "utc": "2001-12-20T02:41:08Z", "ms": 1008816067611.2214 }, "end": { "local": "2001-12-21T08:09:28+03:00", "utc": "2001-12-21T05:09:28Z", "ms": 1008911368065.4724 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-12-20", "window": { "start": { "local": "2001-12-20T11:37:33+03:00", "utc": "2001-12-20T08:37:33Z", "ms": 1008837452776.1514 }, "end": { "local": "2001-12-20T12:25:33+03:00", "utc": "2001-12-20T09:25:33Z", "ms": 1008840332776.1514 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-12-21", "window": { "start": { "local": "2001-12-21T11:38:03+03:00", "utc": "2001-12-21T08:38:03Z", "ms": 1008923882959.0258 }, "end": { "local": "2001-12-21T12:26:03+03:00", "utc": "2001-12-21T09:26:03Z", "ms": 1008926762959.0258 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 05:41 on Thu 20 Dec to 08:09 on Fri 21 Dec.", "fact": "2001-12-20T02:41:08Z → 2001-12-21T05:09:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 20th, 11:38–12:26 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12515 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Erbil, 2001: Thursday 20 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "champa-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-12-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-20", "confidence": "determinate" } ], "quote": "In Erbil, Campā Ṣaṣṭhī 2001 falls on Thursday 20 December. Ṣaṣṭhī runs from 05:41 on Thu 20 Dec to 08:09 on Fri 21 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12515, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2001-12-20T05:41:08+03:00", "utc": "2001-12-20T02:41:08Z", "ms": 1008816067611.2214 }, "end": { "local": "2001-12-21T08:09:28+03:00", "utc": "2001-12-21T05:09:28Z", "ms": 1008911368065.4724 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-20T05:41:08+03:00", "utc": "2001-12-20T02:41:08Z", "ms": 1008816067611.2214 }, "end": { "local": "2001-12-21T08:09:28+03:00", "utc": "2001-12-21T05:09:28Z", "ms": 1008911368065.4724 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-12-20", "window": { "start": { "local": "2001-12-20T11:37:33+03:00", "utc": "2001-12-20T08:37:33Z", "ms": 1008837452776.1514 }, "end": { "local": "2001-12-20T12:25:33+03:00", "utc": "2001-12-20T09:25:33Z", "ms": 1008840332776.1514 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-12-21", "window": { "start": { "local": "2001-12-21T11:38:03+03:00", "utc": "2001-12-21T08:38:03Z", "ms": 1008923882959.0258 }, "end": { "local": "2001-12-21T12:26:03+03:00", "utc": "2001-12-21T09:26:03Z", "ms": 1008926762959.0258 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 05:41 on Thu 20 Dec to 08:09 on Fri 21 Dec.", "fact": "2001-12-20T02:41:08Z → 2001-12-21T05:09:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 20th, 11:38–12:26 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī 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 12515 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Erbil, 2001: Thursday 20 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-12-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-20", "confidence": "determinate" } ], "quote": "In Erbil, Skanda Ṣaṣṭhī 2001 falls on Thursday 20 December. Ṣaṣṭhī runs from 05:41 on Thu 20 Dec to 08:09 on Fri 21 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3365, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2001-12-21T08:09:28+03:00", "utc": "2001-12-21T05:09:28Z", "ms": 1008911368065.4724 }, "end": { "local": "2001-12-22T10:42:28+03:00", "utc": "2001-12-22T07:42:28Z", "ms": 1009006947997.3239 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-21T08:09:28+03:00", "utc": "2001-12-21T05:09:28Z", "ms": 1008911368065.4724 }, "end": { "local": "2001-12-22T10:42:28+03:00", "utc": "2001-12-22T07:42:28Z", "ms": 1009006947997.3239 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-12-21", "window": { "start": { "local": "2001-12-21T11:38:03+03:00", "utc": "2001-12-21T08:38:03Z", "ms": 1008923882959.0258 }, "end": { "local": "2001-12-21T12:26:03+03:00", "utc": "2001-12-21T09:26:03Z", "ms": 1008926762959.0258 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2001-12-22", "window": { "start": { "local": "2001-12-22T11:38:33+03:00", "utc": "2001-12-22T08:38:33Z", "ms": 1009010313173.1451 }, "end": { "local": "2001-12-22T12:26:33+03:00", "utc": "2001-12-22T09:26:33Z", "ms": 1009013193173.1451 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 08:09 on Fri 21 Dec to 10:42 on Sat 22 Dec.", "fact": "2001-12-21T05:09:28Z → 2001-12-22T07:42:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 21st, 11:39–12:27 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 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: purvaviddha → only-day · margin 3365 s" }, { "step": "ruling", "text": "Mitra Saptamī, Erbil, 2001: Friday 21 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mitra-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Mitra saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-21", "confidence": "determinate" } ], "quote": "In Erbil, Mitra Saptamī 2001 falls on Friday 21 December. Saptamī runs from 08:09 on Fri 21 Dec to 10:42 on Sat 22 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/ekadashi?on=2001-12-26", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33777, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2001-12-25T16:36:16+03:00", "utc": "2001-12-25T13:36:16Z", "ms": 1009287375873.0692 }, "end": { "local": "2001-12-26T17:24:06+03:00", "utc": "2001-12-26T14:24:06Z", "ms": 1009376646039.9955 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-25T16:36:16+03:00", "utc": "2001-12-25T13:36:16Z", "ms": 1009287375873.0692 }, "end": { "local": "2001-12-26T17:24:06+03:00", "utc": "2001-12-26T14:24:06Z", "ms": 1009376646039.9955 } }, "kaala": "sunrise", "days": [ { "local_date": "2001-12-25", "window": { "start": { "local": "2001-12-25T07:13:19+03:00", "utc": "2001-12-25T04:13:19Z", "ms": 1009253599364.5426 }, "end": { "local": "2001-12-25T07:13:19+03:00", "utc": "2001-12-25T04:13:19Z", "ms": 1009253599364.5426 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2001-12-26", "window": { "start": { "local": "2001-12-26T07:13:42+03:00", "utc": "2001-12-26T04:13:42Z", "ms": 1009340022465.1078 }, "end": { "local": "2001-12-26T07:13:42+03:00", "utc": "2001-12-26T04:13:42Z", "ms": 1009340022465.1078 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:36 on Tue 25 Dec to 17:24 on Wed 26 Dec.", "fact": "2001-12-25T13:36:16Z → 2001-12-26T14:24:06Z" }, { "step": "kaala", "text": "Sunrise is at 07:13 on the 25th and 07:14 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 25th and is on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33777 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Erbil, 2001: Wednesday 26 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": "2001-12-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-26", "confidence": "determinate" } ], "quote": "In Erbil, Mokṣadā Ekādaśī 2001 falls on Wednesday 26 December. Ekādaśī runs from 16:36 on Tue 25 Dec to 17:24 on Wed 26 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/erbil/festivals/2001/ekadashi?on=2001-12-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/erbil/festivals/2001/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17732, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2001-12-26T17:24:06+03:00", "utc": "2001-12-26T14:24:06Z", "ms": 1009376646039.9955 }, "end": { "local": "2001-12-27T17:28:19+03:00", "utc": "2001-12-27T14:28:19Z", "ms": 1009463299255.4529 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-26T17:24:06+03:00", "utc": "2001-12-26T14:24:06Z", "ms": 1009376646039.9955 }, "end": { "local": "2001-12-27T17:28:19+03:00", "utc": "2001-12-27T14:28:19Z", "ms": 1009463299255.4529 } }, "kaala": "madhyahna", "days": [ { "local_date": "2001-12-26", "window": { "start": { "local": "2001-12-26T11:40:34+03:00", "utc": "2001-12-26T08:40:34Z", "ms": 1009356033645.1954 }, "end": { "local": "2001-12-26T12:28:34+03:00", "utc": "2001-12-26T09:28:34Z", "ms": 1009358913645.1954 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2001-12-27", "window": { "start": { "local": "2001-12-27T11:41:03+03:00", "utc": "2001-12-27T08:41:03Z", "ms": 1009442463499.0778 }, "end": { "local": "2001-12-27T12:29:03+03:00", "utc": "2001-12-27T09:29:03Z", "ms": 1009445343499.0778 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 17:24 on Wed 26 Dec to 17:28 on Thu 27 Dec.", "fact": "2001-12-26T14:24:06Z → 2001-12-27T14:28:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 26th, 11:41–12:29 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17732 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Erbil, 2001: Thursday 27 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akhanda-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2001-12-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-27", "confidence": "determinate" } ], "quote": "In Erbil, Akhaṇḍa Dvādaśī 2001 falls on Thursday 27 December. Dvādaśī runs from 17:24 on Wed 26 Dec to 17:28 on Thu 27 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/erbil/festivals/2001/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/2001/pradosha-vrata?on=2001-12-27", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 427, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2001-12-27T17:28:19+03:00", "utc": "2001-12-27T14:28:19Z", "ms": 1009463299255.4529 }, "end": { "local": "2001-12-28T16:49:36+03:00", "utc": "2001-12-28T13:49:36Z", "ms": 1009547376145.1284 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-27T17:28:19+03:00", "utc": "2001-12-27T14:28:19Z", "ms": 1009463299255.4529 }, "end": { "local": "2001-12-28T16:49:36+03:00", "utc": "2001-12-28T13:49:36Z", "ms": 1009547376145.1284 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-12-27", "window": { "start": { "local": "2001-12-27T16:56:03+03:00", "utc": "2001-12-27T13:56:03Z", "ms": 1009461363251.5669 }, "end": { "local": "2001-12-27T18:50:30+03:00", "utc": "2001-12-27T15:50:30Z", "ms": 1009468229909.5415 } }, "covered_min": 82, "window_min": 114, "qualifies": true }, { "local_date": "2001-12-28", "window": { "start": { "local": "2001-12-28T16:56:43+03:00", "utc": "2001-12-28T13:56:43Z", "ms": 1009547803180.2694 }, "end": { "local": "2001-12-28T18:51:07+03:00", "utc": "2001-12-28T15:51:07Z", "ms": 1009554666858.1963 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:28 on Thu 27 Dec to 16:50 on Fri 28 Dec.", "fact": "2001-12-27T14:28:19Z → 2001-12-28T13:49:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:56–18:50 on the 27th, 16:57–18:51 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 114 minutes on the 27th and 0 of 114 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 427 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Erbil, 2001: Thursday 27 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": "2001-12-27", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-27", "confidence": "determinate" } ], "quote": "In Erbil, Śukla Pradoṣa Vrata 2001 falls on Thursday 27 December. Trayodaśī runs from 17:28 on Thu 27 Dec to 16:50 on Fri 28 Dec and covers 82 of 114 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/pradosha-vrata?on=2001-12-27", "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/2001/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "tradition": "smarta", "place": "95446", "year": 2001, "local_date": "2001-12-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5143, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2001-12-29T15:31:42+03:00", "utc": "2001-12-29T12:31:42Z", "ms": 1009629101700.1078 }, "end": { "local": "2001-12-30T13:40:33+03:00", "utc": "2001-12-30T10:40:33Z", "ms": 1009708832569.1427 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2001-12-29T15:31:42+03:00", "utc": "2001-12-29T12:31:42Z", "ms": 1009629101700.1078 }, "end": { "local": "2001-12-30T13:40:33+03:00", "utc": "2001-12-30T10:40:33Z", "ms": 1009708832569.1427 } }, "kaala": "pradosha", "days": [ { "local_date": "2001-12-29", "window": { "start": { "local": "2001-12-29T16:57:25+03:00", "utc": "2001-12-29T13:57:25Z", "ms": 1009634244571.0717 }, "end": { "local": "2001-12-29T18:51:45+03:00", "utc": "2001-12-29T15:51:45Z", "ms": 1009641104823.536 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "2001-12-30", "window": { "start": { "local": "2001-12-30T16:58:07+03:00", "utc": "2001-12-30T13:58:07Z", "ms": 1009720687383.3462 }, "end": { "local": "2001-12-30T18:52:24+03:00", "utc": "2001-12-30T15:52:24Z", "ms": 1009727543768.3883 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:32 on Sat 29 Dec to 13:41 on Sun 30 Dec.", "fact": "2001-12-29T12:31:42Z → 2001-12-30T10:40:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:57–18:52 on the 29th, 16:58–18:52 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 114 of 114 minutes on the 29th and 0 of 114 on the 30th.", "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 5143 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Erbil, 2001: Saturday 29 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": "2001-12-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2001-12-29", "confidence": "determinate" } ], "quote": "In Erbil, Dattātreyotpatti (Datta Jayanti) 2001 falls on Saturday 29 December. Pūrṇimā runs from 15:32 on Sat 29 Dec to 13:41 on Sun 30 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/erbil/festivals/2001/dattatreyotpatti", "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" } }