{ "id": "/ankara/festivals/2097", "place": { "id": "323786", "slug": "ankara", "name": "Ankara", "region": "Turkey", "country": "TR", "lat": 39.91987, "lon": 32.85427, "elevation_m": 850, "tz": "Europe/Istanbul" }, "year": 2097, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-01-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11355, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-01-01T02:17:46+03:00", "utc": "2096-12-31T23:17:46Z", "ms": 4007834265968.656 }, "end": { "local": "2097-01-02T00:23:13+03:00", "utc": "2097-01-01T21:23:13Z", "ms": 4007913792699.3687 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-01-01T02:17:46+03:00", "utc": "2096-12-31T23:17:46Z", "ms": 4007834265968.656 }, "end": { "local": "2097-01-02T00:23:13+03:00", "utc": "2097-01-01T21:23:13Z", "ms": 4007913792699.3687 } }, "kaala": "moonrise", "days": [ { "local_date": "2096-12-31", "window": { "start": { "local": "2096-12-31T19:59:58+03:00", "utc": "2096-12-31T16:59:58Z", "ms": 4007811597875.596 }, "end": { "local": "2096-12-31T19:59:58+03:00", "utc": "2096-12-31T16:59:58Z", "ms": 4007811597875.596 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-01-01", "window": { "start": { "local": "2097-01-01T21:13:58+03:00", "utc": "2097-01-01T18:13:58Z", "ms": 4007902437931.3555 }, "end": { "local": "2097-01-01T21:13:58+03:00", "utc": "2097-01-01T18:13:58Z", "ms": 4007902437931.3555 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:18 on Tue 1 Jan to 00:23 on Wed 2 Jan.", "fact": "2096-12-31T23:17:46Z → 2097-01-01T21:23:13Z" }, { "step": "kaala", "text": "Moonrise is at 20:00 on the 31st and 21:14 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 31st and is on the 1st.", "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 11355 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Tuesday 1 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": "2097-01-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-01", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Tuesday 1 January. Caturthī runs from 02:18 on Tue 1 Jan to 00:23 on Wed 2 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-01-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-01-09", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1920, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-01-08T05:55:15+03:00", "utc": "2097-01-08T02:55:15Z", "ms": 4008452115434.549 }, "end": { "local": "2097-01-09T08:42:22+03:00", "utc": "2097-01-09T05:42:22Z", "ms": 4008548541920.3804 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-01-08T05:55:15+03:00", "utc": "2097-01-08T02:55:15Z", "ms": 4008452115434.549 }, "end": { "local": "2097-01-09T08:42:22+03:00", "utc": "2097-01-09T05:42:22Z", "ms": 4008548541920.3804 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-01-08", "window": { "start": { "local": "2097-01-08T08:10:33+03:00", "utc": "2097-01-08T05:10:33Z", "ms": 4008460232679.39 }, "end": { "local": "2097-01-08T08:10:33+03:00", "utc": "2097-01-08T05:10:33Z", "ms": 4008460232679.39 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-01-09", "window": { "start": { "local": "2097-01-09T08:10:22+03:00", "utc": "2097-01-09T05:10:22Z", "ms": 4008546622239.558 }, "end": { "local": "2097-01-09T08:10:22+03:00", "utc": "2097-01-09T05:10:22Z", "ms": 4008546622239.558 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:55 on Tue 8 Jan to 08:42 on Wed 9 Jan.", "fact": "2097-01-08T02:55:15Z → 2097-01-09T05:42:22Z" }, { "step": "kaala", "text": "Sunrise is at 08:11 on the 8th and 08:10 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 8th and is on the 9th.", "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 1920 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Ankara, 2097: Wednesday 9 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": "2097-01-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-09", "confidence": "determinate" } ], "quote": "In Ankara, Saphalā Ekādaśī 2097 falls on Wednesday 9 January. Ekādaśī runs from 05:55 on Tue 8 Jan to 08:42 on Wed 9 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-01-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-01-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13409, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-01-10T11:27:53+03:00", "utc": "2097-01-10T08:27:53Z", "ms": 4008644872832.268 }, "end": { "local": "2097-01-11T14:00:44+03:00", "utc": "2097-01-11T11:00:44Z", "ms": 4008740444285.728 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-01-10T11:27:53+03:00", "utc": "2097-01-10T08:27:53Z", "ms": 4008644872832.268 }, "end": { "local": "2097-01-11T14:00:44+03:00", "utc": "2097-01-11T11:00:44Z", "ms": 4008740444285.728 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-01-10", "window": { "start": { "local": "2097-01-10T17:43:11+03:00", "utc": "2097-01-10T14:43:11Z", "ms": 4008667391047.2627 }, "end": { "local": "2097-01-10T19:38:45+03:00", "utc": "2097-01-10T16:38:45Z", "ms": 4008674324881.3687 } }, "covered_min": 116, "window_min": 116, "qualifies": true }, { "local_date": "2097-01-11", "window": { "start": { "local": "2097-01-11T17:44:14+03:00", "utc": "2097-01-11T14:44:14Z", "ms": 4008753853596.2314 }, "end": { "local": "2097-01-11T19:39:37+03:00", "utc": "2097-01-11T16:39:37Z", "ms": 4008760776826.059 } }, "covered_min": 0, "window_min": 115, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:28 on Thu 10 Jan to 14:01 on Fri 11 Jan.", "fact": "2097-01-10T08:27:53Z → 2097-01-11T11:00:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:43–19:39 on the 10th, 17:44–19:40 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 116 of 116 minutes on the 10th and 0 of 115 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13409 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Thursday 10 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": "2097-01-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-10", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Thursday 10 January. Trayodaśī runs from 11:28 on Thu 10 Jan to 14:01 on Fri 11 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-01-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-01-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29992, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-01-11T14:00:44+03:00", "utc": "2097-01-11T11:00:44Z", "ms": 4008740444285.728 }, "end": { "local": "2097-01-12T16:13:26+03:00", "utc": "2097-01-12T13:13:26Z", "ms": 4008834806300.9077 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-01-11T14:00:44+03:00", "utc": "2097-01-11T11:00:44Z", "ms": 4008740444285.728 }, "end": { "local": "2097-01-12T16:13:26+03:00", "utc": "2097-01-12T13:13:26Z", "ms": 4008834806300.9077 } }, "kaala": "nishita", "days": [ { "local_date": "2097-01-11", "window": { "start": { "local": "2097-01-12T00:32:56+03:00", "utc": "2097-01-11T21:32:56Z", "ms": 4008778375708.085 }, "end": { "local": "2097-01-12T01:20:56+03:00", "utc": "2097-01-11T22:20:56Z", "ms": 4008781255708.085 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-01-12", "window": { "start": { "local": "2097-01-13T00:33:18+03:00", "utc": "2097-01-12T21:33:18Z", "ms": 4008864797892.633 }, "end": { "local": "2097-01-13T01:21:18+03:00", "utc": "2097-01-12T22:21:18Z", "ms": 4008867677892.633 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:01 on Fri 11 Jan to 16:13 on Sat 12 Jan.", "fact": "2097-01-11T11:00:44Z → 2097-01-12T13:13:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:33–01:21 on the 11th, 00:33–01:21 on the 12th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29992 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Friday 11 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": "2097-01-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-11", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Friday 11 January. Caturdaśī runs from 14:01 on Fri 11 Jan to 16:13 on Sat 12 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-01-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 621, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 }, "end": { "local": "2097-02-13T06:36:43+03:00", "utc": "2097-02-13T03:36:43Z", "ms": 4011565003130.601 } }, "span": { "of": "transit", "start": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 }, "end": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 } }, "kaala": "sunset-day", "days": [ { "local_date": "2097-01-14", "window": { "start": { "local": "2097-01-13T17:46:22+03:00", "utc": "2097-01-13T14:46:22Z", "ms": 4008926781540.193 }, "end": { "local": "2097-01-14T17:47:27+03:00", "utc": "2097-01-14T14:47:27Z", "ms": 4009013246818.081 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2097-01-15", "window": { "start": { "local": "2097-01-14T17:47:27+03:00", "utc": "2097-01-14T14:47:27Z", "ms": 4009013246818.081 }, "end": { "local": "2097-01-15T17:48:33+03:00", "utc": "2097-01-15T14:48:33Z", "ms": 4009099712889.031 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2097-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 17:37 on Mon 14 Jan.", "fact": "2097-01-14T14:37:06Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:47, and the day of the 15th ends at 17:49.", "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 621 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Ankara, 2097: Sunday 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": "2097-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2097-01-13", "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": "2097-01-13", "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 Ankara, Bhogi 2097 falls on Sunday 13 January. It is kept the day before Pongal, which falls on Monday 14 January. The Sun enters Makara at 17:37 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 621, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 }, "end": { "local": "2097-02-13T06:36:43+03:00", "utc": "2097-02-13T03:36:43Z", "ms": 4011565003130.601 } }, "span": { "of": "transit", "start": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 }, "end": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 } }, "kaala": "sunset-day", "days": [ { "local_date": "2097-01-14", "window": { "start": { "local": "2097-01-13T17:46:22+03:00", "utc": "2097-01-13T14:46:22Z", "ms": 4008926781540.193 }, "end": { "local": "2097-01-14T17:47:27+03:00", "utc": "2097-01-14T14:47:27Z", "ms": 4009013246818.081 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2097-01-15", "window": { "start": { "local": "2097-01-14T17:47:27+03:00", "utc": "2097-01-14T14:47:27Z", "ms": 4009013246818.081 }, "end": { "local": "2097-01-15T17:48:33+03:00", "utc": "2097-01-15T14:48:33Z", "ms": 4009099712889.031 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 17:37 on Mon 14 Jan.", "fact": "2097-01-14T14:37:06Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:47, and the day of the 15th ends at 17:49.", "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 621 s" }, { "step": "ruling", "text": "Pongal, Ankara, 2097: Monday 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": "2097-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2097-01-14", "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": "2097-01-14", "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 Ankara, Pongal 2097 falls on Monday 14 January. The Sun enters Makara at 17:37 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22974, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 }, "end": { "local": "2097-02-13T06:36:43+03:00", "utc": "2097-02-13T03:36:43Z", "ms": 4011565003130.601 } }, "span": { "of": "transit", "start": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 }, "end": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 } }, "kaala": "civil-day", "days": [ { "local_date": "2097-01-14", "window": { "start": { "local": "2097-01-14T00:00:00+03:00", "utc": "2097-01-13T21:00:00Z", "ms": 4008949200000 }, "end": { "local": "2097-01-15T00:00:00+03:00", "utc": "2097-01-14T21:00:00Z", "ms": 4009035600000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2097-01-15", "window": { "start": { "local": "2097-01-15T00:00:00+03:00", "utc": "2097-01-14T21:00:00Z", "ms": 4009035600000 }, "end": { "local": "2097-01-16T00:00:00+03:00", "utc": "2097-01-15T21:00:00Z", "ms": 4009122000000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 17:37 on Mon 14 Jan.", "fact": "2097-01-14T14:37:06Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Ankara.", "fact": "civil-day: midnight-to-midnight · Europe/Istanbul" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 22974 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Ankara, 2097: Monday 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": "2097-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2097-01-14", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "2097-01-14", "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 Ankara, Makara Saṅkrānti 2097 falls on Monday 14 January. The Sun enters Makara at 17:37 on Mon 14 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 621, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 }, "end": { "local": "2097-02-13T06:36:43+03:00", "utc": "2097-02-13T03:36:43Z", "ms": 4011565003130.601 } }, "span": { "of": "transit", "start": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 }, "end": { "local": "2097-01-14T17:37:06+03:00", "utc": "2097-01-14T14:37:06Z", "ms": 4009012625775.8193 } }, "kaala": "sunset-day", "days": [ { "local_date": "2097-01-14", "window": { "start": { "local": "2097-01-13T17:46:22+03:00", "utc": "2097-01-13T14:46:22Z", "ms": 4008926781540.193 }, "end": { "local": "2097-01-14T17:47:27+03:00", "utc": "2097-01-14T14:47:27Z", "ms": 4009013246818.081 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2097-01-15", "window": { "start": { "local": "2097-01-14T17:47:27+03:00", "utc": "2097-01-14T14:47:27Z", "ms": 4009013246818.081 }, "end": { "local": "2097-01-15T17:48:33+03:00", "utc": "2097-01-15T14:48:33Z", "ms": 4009099712889.031 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2097-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 17:37 on Mon 14 Jan.", "fact": "2097-01-14T14:37:06Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:47, and the day of the 15th ends at 17:49.", "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 621 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Ankara, 2097: Tuesday 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": "2097-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2097-01-15", "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": "2097-01-15", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Ankara, Mattu Pongal 2097 falls on Tuesday 15 January. It is kept the day after Pongal, which falls on Monday 14 January. The Sun enters Makara at 17:37 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-01-17", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27196, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-01-16T20:56:10+03:00", "utc": "2097-01-16T17:56:10Z", "ms": 4009197370397.819 }, "end": { "local": "2097-01-17T21:05:56+03:00", "utc": "2097-01-17T18:05:56Z", "ms": 4009284356288.4805 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-01-16T20:56:10+03:00", "utc": "2097-01-16T17:56:10Z", "ms": 4009197370397.819 }, "end": { "local": "2097-01-17T21:05:56+03:00", "utc": "2097-01-17T18:05:56Z", "ms": 4009284356288.4805 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-01-16", "window": { "start": { "local": "2097-01-16T12:34:54+03:00", "utc": "2097-01-16T09:34:54Z", "ms": 4009167294023.4727 }, "end": { "local": "2097-01-16T13:22:54+03:00", "utc": "2097-01-16T10:22:54Z", "ms": 4009170174023.4727 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-01-17", "window": { "start": { "local": "2097-01-17T12:35:14+03:00", "utc": "2097-01-17T09:35:14Z", "ms": 4009253713923.1504 }, "end": { "local": "2097-01-17T13:23:14+03:00", "utc": "2097-01-17T10:23:14Z", "ms": 4009256593923.1504 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:56 on Wed 16 Jan to 21:06 on Thu 17 Jan.", "fact": "2097-01-16T17:56:10Z → 2097-01-17T18:05:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 16th, 12:35–13:23 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27196 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Thursday 17 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-01-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-17", "confidence": "determinate" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Thursday 17 January. Caturthī runs from 20:56 on Wed 16 Jan to 21:06 on Thu 17 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-01-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-01-24", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9721, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-01-23T13:25:52+03:00", "utc": "2097-01-23T10:25:52Z", "ms": 4009775151766.325 }, "end": { "local": "2097-01-24T10:45:30+03:00", "utc": "2097-01-24T07:45:30Z", "ms": 4009851930083.7456 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-01-23T13:25:52+03:00", "utc": "2097-01-23T10:25:52Z", "ms": 4009775151766.325 }, "end": { "local": "2097-01-24T10:45:30+03:00", "utc": "2097-01-24T07:45:30Z", "ms": 4009851930083.7456 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-01-23", "window": { "start": { "local": "2097-01-23T08:04:11+03:00", "utc": "2097-01-23T05:04:11Z", "ms": 4009755851274.7344 }, "end": { "local": "2097-01-23T08:04:11+03:00", "utc": "2097-01-23T05:04:11Z", "ms": 4009755851274.7344 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-01-24", "window": { "start": { "local": "2097-01-24T08:03:29+03:00", "utc": "2097-01-24T05:03:29Z", "ms": 4009842209396.0986 }, "end": { "local": "2097-01-24T08:03:29+03:00", "utc": "2097-01-24T05:03:29Z", "ms": 4009842209396.0986 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:26 on Wed 23 Jan to 10:46 on Thu 24 Jan.", "fact": "2097-01-23T10:25:52Z → 2097-01-24T07:45:30Z" }, { "step": "kaala", "text": "Sunrise is at 08:04 on the 23rd and 08:03 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 23rd and is on the 24th.", "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 9721 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Ankara, 2097: Thursday 24 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": "2097-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-24", "confidence": "determinate" } ], "quote": "In Ankara, Putradā Ekādaśī 2097 falls on Thursday 24 January. Ekādaśī runs from 13:26 on Wed 23 Jan to 10:46 on Thu 24 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-01-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-01-25", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32012, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-01-25T07:49:47+03:00", "utc": "2097-01-25T04:49:47Z", "ms": 4009927787033.8 }, "end": { "local": "2097-01-26T04:45:52+03:00", "utc": "2097-01-26T01:45:52Z", "ms": 4010003152330.296 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-01-25T07:49:47+03:00", "utc": "2097-01-25T04:49:47Z", "ms": 4009927787033.8 }, "end": { "local": "2097-01-26T04:45:52+03:00", "utc": "2097-01-26T01:45:52Z", "ms": 4010003152330.296 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-01-24", "window": { "start": { "local": "2097-01-24T17:58:54+03:00", "utc": "2097-01-24T14:58:54Z", "ms": 4009877934172.884 }, "end": { "local": "2097-01-24T19:51:25+03:00", "utc": "2097-01-24T16:51:25Z", "ms": 4009884685030.18 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "2097-01-25", "window": { "start": { "local": "2097-01-25T18:00:05+03:00", "utc": "2097-01-25T15:00:05Z", "ms": 4009964405252.041 }, "end": { "local": "2097-01-25T19:52:21+03:00", "utc": "2097-01-25T16:52:21Z", "ms": 4009971140542.1704 } }, "covered_min": 112, "window_min": 112, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:50 on Fri 25 Jan to 04:46 on Sat 26 Jan.", "fact": "2097-01-25T04:49:47Z → 2097-01-26T01:45:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:59–19:51 on the 24th, 18:00–19:52 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 113 minutes on the 24th and 112 of 112 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32012 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Friday 25 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": "2097-01-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-25", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Friday 25 January. Trayodaśī runs from 07:50 on Fri 25 Jan to 04:46 on Sat 26 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-01-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-01-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15594, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-01-30T16:51:08+03:00", "utc": "2097-01-30T13:51:08Z", "ms": 4010392267882.804 }, "end": { "local": "2097-01-31T16:15:30+03:00", "utc": "2097-01-31T13:15:30Z", "ms": 4010476529655.375 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-01-30T16:51:08+03:00", "utc": "2097-01-30T13:51:08Z", "ms": 4010392267882.804 }, "end": { "local": "2097-01-31T16:15:30+03:00", "utc": "2097-01-31T13:15:30Z", "ms": 4010476529655.375 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-01-30", "window": { "start": { "local": "2097-01-30T21:11:02+03:00", "utc": "2097-01-30T18:11:02Z", "ms": 4010407861916.771 }, "end": { "local": "2097-01-30T21:11:02+03:00", "utc": "2097-01-30T18:11:02Z", "ms": 4010407861916.771 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-01-31", "window": { "start": { "local": "2097-01-31T22:17:23+03:00", "utc": "2097-01-31T19:17:23Z", "ms": 4010498242695.307 }, "end": { "local": "2097-01-31T22:17:23+03:00", "utc": "2097-01-31T19:17:23Z", "ms": 4010498242695.307 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:51 on Wed 30 Jan to 16:15 on Thu 31 Jan.", "fact": "2097-01-30T13:51:08Z → 2097-01-31T13:15:30Z" }, { "step": "kaala", "text": "Moonrise is at 21:11 on the 30th and 22:17 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 31st.", "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 15594 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Wednesday 30 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": "2097-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-01-30", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Wednesday 30 January. Caturthī runs from 16:51 on Wed 30 Jan to 16:15 on Thu 31 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-01-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-02-07", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7620, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-02-07T03:12:55+03:00", "utc": "2097-02-07T00:12:55Z", "ms": 4011034375229.666 }, "end": { "local": "2097-02-08T05:42:31+03:00", "utc": "2097-02-08T02:42:31Z", "ms": 4011129750709.3325 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-07T03:12:55+03:00", "utc": "2097-02-07T00:12:55Z", "ms": 4011034375229.666 }, "end": { "local": "2097-02-08T05:42:31+03:00", "utc": "2097-02-08T02:42:31Z", "ms": 4011129750709.3325 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-02-07", "window": { "start": { "local": "2097-02-07T07:50:38+03:00", "utc": "2097-02-07T04:50:38Z", "ms": 4011051037661.4653 }, "end": { "local": "2097-02-07T07:50:38+03:00", "utc": "2097-02-07T04:50:38Z", "ms": 4011051037661.4653 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-02-08", "window": { "start": { "local": "2097-02-08T07:49:31+03:00", "utc": "2097-02-08T04:49:31Z", "ms": 4011137370662.412 }, "end": { "local": "2097-02-08T07:49:31+03:00", "utc": "2097-02-08T04:49:31Z", "ms": 4011137370662.412 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:13 on Thu 7 Feb to 05:43 on Fri 8 Feb.", "fact": "2097-02-07T00:12:55Z → 2097-02-08T02:42:31Z" }, { "step": "kaala", "text": "Sunrise is at 07:51 on the 7th and 07:50 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7620 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Ankara, 2097: Thursday 7 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": "2097-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-07", "confidence": "determinate" } ], "quote": "In Ankara, Ṣaṭtilā Ekādaśī 2097 falls on Thursday 7 February. Ekādaśī runs from 03:13 on Thu 7 Feb to 05:43 on Fri 8 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-02-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-02-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32251, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-02-09T07:47:40+03:00", "utc": "2097-02-09T04:47:40Z", "ms": 4011223660408.0156 }, "end": { "local": "2097-02-10T09:21:45+03:00", "utc": "2097-02-10T06:21:45Z", "ms": 4011315704619.5 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-09T07:47:40+03:00", "utc": "2097-02-09T04:47:40Z", "ms": 4011223660408.0156 }, "end": { "local": "2097-02-10T09:21:45+03:00", "utc": "2097-02-10T06:21:45Z", "ms": 4011315704619.5 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-02-09", "window": { "start": { "local": "2097-02-09T18:18:04+03:00", "utc": "2097-02-09T15:18:04Z", "ms": 4011261484499.6714 }, "end": { "local": "2097-02-09T20:05:58+03:00", "utc": "2097-02-09T17:05:58Z", "ms": 4011267957565.0234 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "2097-02-10", "window": { "start": { "local": "2097-02-10T18:19:16+03:00", "utc": "2097-02-10T15:19:16Z", "ms": 4011347956059.7686 }, "end": { "local": "2097-02-10T20:06:50+03:00", "utc": "2097-02-10T17:06:50Z", "ms": 4011354410102.807 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:48 on Sat 9 Feb to 09:22 on Sun 10 Feb.", "fact": "2097-02-09T04:47:40Z → 2097-02-10T06:21:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:18–20:06 on the 9th, 18:19–20:07 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 9th and 0 of 108 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32251 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Saturday 9 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": "2097-02-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-09", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Saturday 9 February. Trayodaśī runs from 07:48 on Sat 9 Feb to 09:22 on Sun 10 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-02-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-02-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28506, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-02-10T09:21:45+03:00", "utc": "2097-02-10T06:21:45Z", "ms": 4011315704619.5 }, "end": { "local": "2097-02-11T10:22:27+03:00", "utc": "2097-02-11T07:22:27Z", "ms": 4011405747215.8623 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-10T09:21:45+03:00", "utc": "2097-02-10T06:21:45Z", "ms": 4011315704619.5 }, "end": { "local": "2097-02-11T10:22:27+03:00", "utc": "2097-02-11T07:22:27Z", "ms": 4011405747215.8623 } }, "kaala": "nishita", "days": [ { "local_date": "2097-02-09", "window": { "start": { "local": "2097-02-10T00:38:38+03:00", "utc": "2097-02-09T21:38:38Z", "ms": 4011284318494.742 }, "end": { "local": "2097-02-10T01:26:38+03:00", "utc": "2097-02-09T22:26:38Z", "ms": 4011287198494.742 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-02-10", "window": { "start": { "local": "2097-02-11T00:38:39+03:00", "utc": "2097-02-10T21:38:39Z", "ms": 4011370718721.164 }, "end": { "local": "2097-02-11T01:26:39+03:00", "utc": "2097-02-10T22:26:39Z", "ms": 4011373598721.164 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:22 on Sun 10 Feb to 10:22 on Mon 11 Feb.", "fact": "2097-02-10T06:21:45Z → 2097-02-11T07:22:27Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:39–01:27 on the 9th, 00:39–01:27 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28506 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Sunday 10 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-02-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-10", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Sunday 10 February. Caturdaśī runs from 09:22 on Sun 10 Feb to 10:22 on Mon 11 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-02-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5672, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-02-10T09:21:45+03:00", "utc": "2097-02-10T06:21:45Z", "ms": 4011315704619.5 }, "end": { "local": "2097-02-11T10:22:27+03:00", "utc": "2097-02-11T07:22:27Z", "ms": 4011405747215.8623 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-10T09:21:45+03:00", "utc": "2097-02-10T06:21:45Z", "ms": 4011315704619.5 }, "end": { "local": "2097-02-11T10:22:27+03:00", "utc": "2097-02-11T07:22:27Z", "ms": 4011405747215.8623 } }, "kaala": "arunodaya", "days": [ { "local_date": "2097-02-10", "window": { "start": { "local": "2097-02-10T05:59:19+03:00", "utc": "2097-02-10T02:59:19Z", "ms": 4011303559424.4604 }, "end": { "local": "2097-02-10T07:47:12+03:00", "utc": "2097-02-10T04:47:12Z", "ms": 4011310032489.8125 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2097-02-11", "window": { "start": { "local": "2097-02-11T05:58:27+03:00", "utc": "2097-02-11T02:58:27Z", "ms": 4011389907339.521 }, "end": { "local": "2097-02-11T07:46:01+03:00", "utc": "2097-02-11T04:46:01Z", "ms": 4011396361382.5596 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:22 on Sun 10 Feb to 10:22 on Mon 11 Feb.", "fact": "2097-02-10T06:21:45Z → 2097-02-11T07:22:27Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:59–07:47 on the 10th, 05:58–07:46 on the 11th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 108 minutes on the 10th and 108 of 108 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5672 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Ankara, 2097: Monday 11 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-02-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-11", "confidence": "determinate" } ], "quote": "In Ankara, Yama Tarpaṇa 2097 falls on Monday 11 February. Caturdaśī runs from 09:22 on Sun 10 Feb to 10:22 on Mon 11 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10761, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-02-15T09:39:46+03:00", "utc": "2097-02-15T06:39:46Z", "ms": 4011748786478.2656 }, "end": { "local": "2097-02-16T08:37:02+03:00", "utc": "2097-02-16T05:37:02Z", "ms": 4011831421946.0107 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-15T09:39:46+03:00", "utc": "2097-02-15T06:39:46Z", "ms": 4011748786478.2656 }, "end": { "local": "2097-02-16T08:37:02+03:00", "utc": "2097-02-16T05:37:02Z", "ms": 4011831421946.0107 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-02-15", "window": { "start": { "local": "2097-02-15T12:39:07+03:00", "utc": "2097-02-15T09:39:07Z", "ms": 4011759547439.8174 }, "end": { "local": "2097-02-15T13:27:07+03:00", "utc": "2097-02-15T10:27:07Z", "ms": 4011762427439.8174 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-02-16", "window": { "start": { "local": "2097-02-16T12:39:04+03:00", "utc": "2097-02-16T09:39:04Z", "ms": 4011845943861.332 }, "end": { "local": "2097-02-16T13:27:04+03:00", "utc": "2097-02-16T10:27:04Z", "ms": 4011848823861.332 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:40 on Fri 15 Feb to 08:37 on Sat 16 Feb.", "fact": "2097-02-15T06:39:46Z → 2097-02-16T05:37:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 15th, 12:39–13:27 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10761 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Ankara, 2097: Friday 15 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-15", "confidence": "determinate" } ], "quote": "In Ankara, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2097 falls on Friday 15 February. Caturthī runs from 09:40 on Fri 15 Feb to 08:37 on Sat 16 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31524, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-02-15T09:39:46+03:00", "utc": "2097-02-15T06:39:46Z", "ms": 4011748786478.2656 }, "end": { "local": "2097-02-16T08:37:02+03:00", "utc": "2097-02-16T05:37:02Z", "ms": 4011831421946.0107 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-15T09:39:46+03:00", "utc": "2097-02-15T06:39:46Z", "ms": 4011748786478.2656 }, "end": { "local": "2097-02-16T08:37:02+03:00", "utc": "2097-02-16T05:37:02Z", "ms": 4011831421946.0107 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-02-15", "window": { "start": { "local": "2097-02-15T18:25:11+03:00", "utc": "2097-02-15T15:25:11Z", "ms": 4011780310638.083 }, "end": { "local": "2097-02-15T20:11:07+03:00", "utc": "2097-02-15T17:11:07Z", "ms": 4011786667478.3657 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "2097-02-16", "window": { "start": { "local": "2097-02-16T18:26:21+03:00", "utc": "2097-02-16T15:26:21Z", "ms": 4011866780782.4585 }, "end": { "local": "2097-02-16T20:11:58+03:00", "utc": "2097-02-16T17:11:58Z", "ms": 4011873117811.1904 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:40 on Fri 15 Feb to 08:37 on Sat 16 Feb.", "fact": "2097-02-15T06:39:46Z → 2097-02-16T05:37:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:25–20:11 on the 15th, 18:26–20:12 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 106 of 106 minutes on the 15th and 0 of 106 on the 16th.", "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 31524 s" }, { "step": "ruling", "text": "Tila Caturthī, Ankara, 2097: Friday 15 February.", "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": "2097-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-15", "confidence": "determinate" } ], "quote": "In Ankara, Tila Caturthī 2097 falls on Friday 15 February. Caturthī runs from 09:40 on Fri 15 Feb to 08:37 on Sat 16 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14522, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2097-02-16T08:37:02+03:00", "utc": "2097-02-16T05:37:02Z", "ms": 4011831421946.0107 }, "end": { "local": "2097-02-17T07:19:35+03:00", "utc": "2097-02-17T04:19:35Z", "ms": 4011913174824.798 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-16T08:37:02+03:00", "utc": "2097-02-16T05:37:02Z", "ms": 4011831421946.0107 }, "end": { "local": "2097-02-17T07:19:35+03:00", "utc": "2097-02-17T04:19:35Z", "ms": 4011913174824.798 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-02-16", "window": { "start": { "local": "2097-02-16T12:39:04+03:00", "utc": "2097-02-16T09:39:04Z", "ms": 4011845943861.332 }, "end": { "local": "2097-02-16T13:27:04+03:00", "utc": "2097-02-16T10:27:04Z", "ms": 4011848823861.332 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-02-17", "window": { "start": { "local": "2097-02-17T12:39:00+03:00", "utc": "2097-02-17T09:39:00Z", "ms": 4011932339566.3193 }, "end": { "local": "2097-02-17T13:27:00+03:00", "utc": "2097-02-17T10:27:00Z", "ms": 4011935219566.3193 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 08:37 on Sat 16 Feb to 07:20 on Sun 17 Feb.", "fact": "2097-02-16T05:37:02Z → 2097-02-17T04:19:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 16th, 12:39–13:27 on the 17th.", "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 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 14522 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Ankara, 2097: Saturday 16 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-16", "confidence": "determinate" } ], "quote": "In Ankara, Śrī Pañcamī 2097 falls on Saturday 16 February. Pañcamī runs from 08:37 on Sat 16 Feb to 07:20 on Sun 17 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14522, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2097-02-16T08:37:02+03:00", "utc": "2097-02-16T05:37:02Z", "ms": 4011831421946.0107 }, "end": { "local": "2097-02-17T07:19:35+03:00", "utc": "2097-02-17T04:19:35Z", "ms": 4011913174824.798 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-16T08:37:02+03:00", "utc": "2097-02-16T05:37:02Z", "ms": 4011831421946.0107 }, "end": { "local": "2097-02-17T07:19:35+03:00", "utc": "2097-02-17T04:19:35Z", "ms": 4011913174824.798 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-02-16", "window": { "start": { "local": "2097-02-16T12:39:04+03:00", "utc": "2097-02-16T09:39:04Z", "ms": 4011845943861.332 }, "end": { "local": "2097-02-16T13:27:04+03:00", "utc": "2097-02-16T10:27:04Z", "ms": 4011848823861.332 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-02-17", "window": { "start": { "local": "2097-02-17T12:39:00+03:00", "utc": "2097-02-17T09:39:00Z", "ms": 4011932339566.3193 }, "end": { "local": "2097-02-17T13:27:00+03:00", "utc": "2097-02-17T10:27:00Z", "ms": 4011935219566.3193 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 08:37 on Sat 16 Feb to 07:20 on Sun 17 Feb.", "fact": "2097-02-16T05:37:02Z → 2097-02-17T04:19:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 16th, 12:39–13:27 on the 17th.", "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 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14522 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Ankara, 2097: Saturday 16 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-16", "confidence": "determinate" } ], "quote": "In Ankara, Vasanta Pañcamī 2097 falls on Saturday 16 February. Pañcamī runs from 08:37 on Sat 16 Feb to 07:20 on Sun 17 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-18", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 185, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2097-02-18T05:48:47+03:00", "utc": "2097-02-18T02:48:47Z", "ms": 4011994126895.0454 }, "end": { "local": "2097-02-19T04:05:18+03:00", "utc": "2097-02-19T01:05:18Z", "ms": 4012074318498.9443 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-18T05:48:47+03:00", "utc": "2097-02-18T02:48:47Z", "ms": 4011994126895.0454 }, "end": { "local": "2097-02-19T04:05:18+03:00", "utc": "2097-02-19T01:05:18Z", "ms": 4012074318498.9443 } }, "kaala": "arunodaya", "days": [ { "local_date": "2097-02-18", "window": { "start": { "local": "2097-02-18T05:51:52+03:00", "utc": "2097-02-18T02:51:52Z", "ms": 4011994311840.0254 }, "end": { "local": "2097-02-18T07:37:09+03:00", "utc": "2097-02-18T04:37:09Z", "ms": 4012000628948.5386 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "2097-02-19", "window": { "start": { "local": "2097-02-19T05:50:51+03:00", "utc": "2097-02-19T02:50:51Z", "ms": 4012080651240.797 }, "end": { "local": "2097-02-19T07:35:48+03:00", "utc": "2097-02-19T04:35:48Z", "ms": 4012086948326.55 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 05:49 on Mon 18 Feb to 04:05 on Tue 19 Feb.", "fact": "2097-02-18T02:48:47Z → 2097-02-19T01:05:18Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:52–07:37 on the 18th, 05:51–07:36 on the 19th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during aruṇodaya. It covers 105 of 105 minutes on the 18th and 0 of 105 on the 19th.", "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 185 s < 300 s" }, { "step": "ruling", "text": "Ratha Saptamī, Ankara, 2097: Monday 18 February.", "fact": "confidence: boundary (margin)" } ], "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": "2097-02-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-18", "confidence": "boundary" } ], "quote": "In Ankara, Ratha Saptamī 2097 falls on Monday 18 February. Saptamī runs from 05:49 on Mon 18 Feb to 04:05 on Tue 19 Feb and covers all of aruṇodaya that dawn. It is 3 min 05 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-02-22", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35071, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-02-21T21:47:09+03:00", "utc": "2097-02-21T18:47:09Z", "ms": 4012310829174.2256 }, "end": { "local": "2097-02-22T19:25:46+03:00", "utc": "2097-02-22T16:25:46Z", "ms": 4012388746040.0024 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-21T21:47:09+03:00", "utc": "2097-02-21T18:47:09Z", "ms": 4012310829174.2256 }, "end": { "local": "2097-02-22T19:25:46+03:00", "utc": "2097-02-22T16:25:46Z", "ms": 4012388746040.0024 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-02-22", "window": { "start": { "local": "2097-02-22T07:31:40+03:00", "utc": "2097-02-22T04:31:40Z", "ms": 4012345900382.707 }, "end": { "local": "2097-02-22T07:31:40+03:00", "utc": "2097-02-22T04:31:40Z", "ms": 4012345900382.707 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-02-23", "window": { "start": { "local": "2097-02-23T07:30:16+03:00", "utc": "2097-02-23T04:30:16Z", "ms": 4012432215830.8843 }, "end": { "local": "2097-02-23T07:30:16+03:00", "utc": "2097-02-23T04:30:16Z", "ms": 4012432215830.8843 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:47 on Thu 21 Feb to 19:26 on Fri 22 Feb.", "fact": "2097-02-21T18:47:09Z → 2097-02-22T16:25:46Z" }, { "step": "kaala", "text": "Sunrise is at 07:32 on the 22nd and 07:30 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35071 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Ankara, 2097: Friday 22 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": "2097-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-22", "confidence": "determinate" } ], "quote": "In Ankara, Jayā Ekādaśī 2097 falls on Friday 22 February. Ekādaśī runs from 21:47 on Thu 21 Feb to 19:26 on Fri 22 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-02-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13049, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2097-02-22T19:25:46+03:00", "utc": "2097-02-22T16:25:46Z", "ms": 4012388746040.0024 }, "end": { "local": "2097-02-23T17:03:49+03:00", "utc": "2097-02-23T14:03:49Z", "ms": 4012466628563.5435 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-22T19:25:46+03:00", "utc": "2097-02-22T16:25:46Z", "ms": 4012388746040.0024 }, "end": { "local": "2097-02-23T17:03:49+03:00", "utc": "2097-02-23T14:03:49Z", "ms": 4012466628563.5435 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-02-22", "window": { "start": { "local": "2097-02-22T12:38:28+03:00", "utc": "2097-02-22T09:38:28Z", "ms": 4012364307787.052 }, "end": { "local": "2097-02-22T13:26:28+03:00", "utc": "2097-02-22T10:26:28Z", "ms": 4012367187787.052 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-02-23", "window": { "start": { "local": "2097-02-23T12:38:19+03:00", "utc": "2097-02-23T09:38:19Z", "ms": 4012450699480.293 }, "end": { "local": "2097-02-23T13:26:19+03:00", "utc": "2097-02-23T10:26:19Z", "ms": 4012453579480.293 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 19:26 on Fri 22 Feb to 17:04 on Sat 23 Feb.", "fact": "2097-02-22T16:25:46Z → 2097-02-23T14:03:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 22nd, 12:38–13:26 on the 23rd.", "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 22nd and 48 of 48 on the 23rd.", "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 13049 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Ankara, 2097: Saturday 23 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": "2097-02-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-23", "confidence": "determinate" } ], "quote": "In Ankara, Bhīṣma Dvādaśī 2097 falls on Saturday 23 February. Dvādaśī runs from 19:26 on Fri 22 Feb to 17:04 on Sat 23 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pradosha-vrata?on=2097-02-23", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5435, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-02-23T17:03:49+03:00", "utc": "2097-02-23T14:03:49Z", "ms": 4012466628563.5435 }, "end": { "local": "2097-02-24T14:47:43+03:00", "utc": "2097-02-24T11:47:43Z", "ms": 4012544863270.8286 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-23T17:03:49+03:00", "utc": "2097-02-23T14:03:49Z", "ms": 4012466628563.5435 }, "end": { "local": "2097-02-24T14:47:43+03:00", "utc": "2097-02-24T11:47:43Z", "ms": 4012544863270.8286 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-02-23", "window": { "start": { "local": "2097-02-23T18:34:23+03:00", "utc": "2097-02-23T15:34:23Z", "ms": 4012472063129.702 }, "end": { "local": "2097-02-23T20:17:39+03:00", "utc": "2097-02-23T17:17:39Z", "ms": 4012478258764.2373 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "2097-02-24", "window": { "start": { "local": "2097-02-24T18:35:31+03:00", "utc": "2097-02-24T15:35:31Z", "ms": 4012558530744.5244 }, "end": { "local": "2097-02-24T20:18:26+03:00", "utc": "2097-02-24T17:18:26Z", "ms": 4012564705857.6426 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:04 on Sat 23 Feb to 14:48 on Sun 24 Feb.", "fact": "2097-02-23T14:03:49Z → 2097-02-24T11:47:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:34–20:18 on the 23rd, 18:36–20:18 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 103 of 103 minutes on the 23rd and 0 of 103 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5435 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Saturday 23 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": "2097-02-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-23", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Saturday 23 February. Trayodaśī runs from 17:04 on Sat 23 Feb to 14:48 on Sun 24 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-02-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-02-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 422, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-02-25T12:45:04+03:00", "utc": "2097-02-25T09:45:04Z", "ms": 4012623903546.7427 }, "end": { "local": "2097-02-26T11:04:00+03:00", "utc": "2097-02-26T08:04:00Z", "ms": 4012704239983.304 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2097-02-25T12:45:04+03:00", "utc": "2097-02-25T09:45:04Z", "ms": 4012623903546.7427 }, "end": { "local": "2097-02-26T11:04:00+03:00", "utc": "2097-02-26T08:04:00Z", "ms": 4012704239983.304 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-02-25", "window": { "start": { "local": "2097-02-25T12:38:01+03:00", "utc": "2097-02-25T09:38:01Z", "ms": 4012623481066.913 }, "end": { "local": "2097-02-25T13:26:01+03:00", "utc": "2097-02-25T10:26:01Z", "ms": 4012626361066.913 } }, "covered_min": 41, "window_min": 48, "qualifies": true }, { "local_date": "2097-02-26", "window": { "start": { "local": "2097-02-26T12:37:51+03:00", "utc": "2097-02-26T09:37:51Z", "ms": 4012709871002.6553 }, "end": { "local": "2097-02-26T13:25:51+03:00", "utc": "2097-02-26T10:25:51Z", "ms": 4012712751002.6553 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 12:45 on Mon 25 Feb to 11:04 on Tue 26 Feb.", "fact": "2097-02-25T09:45:04Z → 2097-02-26T08:04:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 25th, 12:38–13:26 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 41 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 422 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Ankara, 2097: Monday 25 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": "2097-02-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-02-25", "confidence": "determinate" } ], "quote": "In Ankara, Māghī Pūrṇimā 2097 falls on Monday 25 February. Pūrṇimā runs from 12:45 on Mon 25 Feb to 11:04 on Tue 26 Feb and covers 41 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-03-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 43803, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-03-01T09:25:58+03:00", "utc": "2097-03-01T06:25:58Z", "ms": 4012957557657.7056 }, "end": { "local": "2097-03-02T10:17:47+03:00", "utc": "2097-03-02T07:17:47Z", "ms": 4013047066573.917 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-01T09:25:58+03:00", "utc": "2097-03-01T06:25:58Z", "ms": 4012957557657.7056 }, "end": { "local": "2097-03-02T10:17:47+03:00", "utc": "2097-03-02T07:17:47Z", "ms": 4013047066573.917 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-02-28", "window": { "start": { "local": "2097-02-28T21:03:37+03:00", "utc": "2097-02-28T18:03:37Z", "ms": 4012913016968.1094 }, "end": { "local": "2097-02-28T21:03:37+03:00", "utc": "2097-02-28T18:03:37Z", "ms": 4012913016968.1094 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-03-01", "window": { "start": { "local": "2097-03-01T22:07:44+03:00", "utc": "2097-03-01T19:07:44Z", "ms": 4013003263945.8574 }, "end": { "local": "2097-03-01T22:07:44+03:00", "utc": "2097-03-01T19:07:44Z", "ms": 4013003263945.8574 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:26 on Fri 1 Mar to 10:18 on Sat 2 Mar.", "fact": "2097-03-01T06:25:58Z → 2097-03-02T07:17:47Z" }, { "step": "kaala", "text": "Moonrise is at 21:04 on the 28th and 22:08 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 28th and is on the 1st.", "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 43803 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Friday 1 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": "2097-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-01", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Friday 1 March. Caturthī runs from 09:26 on Fri 1 Mar to 10:18 on Sat 2 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-03-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-03-09", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21217, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-03-08T23:41:55+03:00", "utc": "2097-03-08T20:41:55Z", "ms": 4013613715357.5513 }, "end": { "local": "2097-03-10T01:14:04+03:00", "utc": "2097-03-09T22:14:04Z", "ms": 4013705643710.41 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-08T23:41:55+03:00", "utc": "2097-03-08T20:41:55Z", "ms": 4013613715357.5513 }, "end": { "local": "2097-03-10T01:14:04+03:00", "utc": "2097-03-09T22:14:04Z", "ms": 4013705643710.41 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-03-09", "window": { "start": { "local": "2097-03-09T07:09:15+03:00", "utc": "2097-03-09T04:09:15Z", "ms": 4013640554653.0312 }, "end": { "local": "2097-03-09T07:09:15+03:00", "utc": "2097-03-09T04:09:15Z", "ms": 4013640554653.0312 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-03-10", "window": { "start": { "local": "2097-03-10T07:07:40+03:00", "utc": "2097-03-10T04:07:40Z", "ms": 4013726860380.451 }, "end": { "local": "2097-03-10T07:07:40+03:00", "utc": "2097-03-10T04:07:40Z", "ms": 4013726860380.451 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:42 on Fri 8 Mar to 01:14 on Sun 10 Mar.", "fact": "2097-03-08T20:41:55Z → 2097-03-09T22:14:04Z" }, { "step": "kaala", "text": "Sunrise is at 07:09 on the 9th and 07:08 on the 10th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 9th and is not on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21217 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Ankara, 2097: Saturday 9 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": "2097-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-09", "confidence": "determinate" } ], "quote": "In Ankara, Vijayā Ekādaśī 2097 falls on Saturday 9 March. Ekādaśī runs from 23:42 on Fri 8 Mar to 01:14 on Sun 10 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-03-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-03-11", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20299, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-03-11T02:07:09+03:00", "utc": "2097-03-10T23:07:09Z", "ms": 4013795228793.0737 }, "end": { "local": "2097-03-12T02:20:09+03:00", "utc": "2097-03-11T23:20:09Z", "ms": 4013882408971.257 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-11T02:07:09+03:00", "utc": "2097-03-10T23:07:09Z", "ms": 4013795228793.0737 }, "end": { "local": "2097-03-12T02:20:09+03:00", "utc": "2097-03-11T23:20:09Z", "ms": 4013882408971.257 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-03-10", "window": { "start": { "local": "2097-03-10T18:50:47+03:00", "utc": "2097-03-10T15:50:47Z", "ms": 4013769047305.665 }, "end": { "local": "2097-03-10T20:28:50+03:00", "utc": "2097-03-10T17:28:50Z", "ms": 4013774929760.796 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2097-03-11", "window": { "start": { "local": "2097-03-11T18:51:51+03:00", "utc": "2097-03-11T15:51:51Z", "ms": 4013855510908.2876 }, "end": { "local": "2097-03-11T20:29:32+03:00", "utc": "2097-03-11T17:29:32Z", "ms": 4013861372213.5703 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:07 on Mon 11 Mar to 02:20 on Tue 12 Mar.", "fact": "2097-03-10T23:07:09Z → 2097-03-11T23:20:09Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:29 on the 10th, 18:52–20:30 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 98 minutes on the 10th and 98 of 98 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20299 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Monday 11 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": "2097-03-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-11", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Monday 11 March. Trayodaśī runs from 02:07 on Mon 11 Mar to 02:20 on Tue 12 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-03-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2024, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-03-12T02:20:09+03:00", "utc": "2097-03-11T23:20:09Z", "ms": 4013882408971.257 }, "end": { "local": "2097-03-13T01:55:38+03:00", "utc": "2097-03-12T22:55:38Z", "ms": 4013967338424.8926 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-12T02:20:09+03:00", "utc": "2097-03-11T23:20:09Z", "ms": 4013882408971.257 }, "end": { "local": "2097-03-13T01:55:38+03:00", "utc": "2097-03-12T22:55:38Z", "ms": 4013967338424.8926 } }, "kaala": "nishita", "days": [ { "local_date": "2097-03-11", "window": { "start": { "local": "2097-03-12T00:34:11+03:00", "utc": "2097-03-11T21:34:11Z", "ms": 4013876050803.0986 }, "end": { "local": "2097-03-12T01:22:11+03:00", "utc": "2097-03-11T22:22:11Z", "ms": 4013878930803.0986 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-03-12", "window": { "start": { "local": "2097-03-13T00:33:55+03:00", "utc": "2097-03-12T21:33:55Z", "ms": 4013962434820.677 }, "end": { "local": "2097-03-13T01:21:55+03:00", "utc": "2097-03-12T22:21:55Z", "ms": 4013965314820.677 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:20 on Tue 12 Mar to 01:56 on Wed 13 Mar.", "fact": "2097-03-11T23:20:09Z → 2097-03-12T22:55:38Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:34–01:22 on the 11th, 00:34–01:22 on the 12th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 2024 s" }, { "step": "ruling", "text": "Mahāśivarātri, Ankara, 2097: Tuesday 12 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-03-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-12", "confidence": "determinate" } ], "quote": "In Ankara, Mahāśivarātri 2097 falls on Tuesday 12 March. Caturdaśī runs from 02:20 on Tue 12 Mar to 01:56 on Wed 13 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-03-17", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16077, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-03-16T19:54:46+03:00", "utc": "2097-03-16T16:54:46Z", "ms": 4014291286310.3696 }, "end": { "local": "2097-03-17T17:49:16+03:00", "utc": "2097-03-17T14:49:16Z", "ms": 4014370156297.1187 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-16T19:54:46+03:00", "utc": "2097-03-16T16:54:46Z", "ms": 4014291286310.3696 }, "end": { "local": "2097-03-17T17:49:16+03:00", "utc": "2097-03-17T14:49:16Z", "ms": 4014370156297.1187 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-03-16", "window": { "start": { "local": "2097-03-16T12:33:37+03:00", "utc": "2097-03-16T09:33:37Z", "ms": 4014264816682.79 }, "end": { "local": "2097-03-16T13:21:37+03:00", "utc": "2097-03-16T10:21:37Z", "ms": 4014267696682.79 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-03-17", "window": { "start": { "local": "2097-03-17T12:33:20+03:00", "utc": "2097-03-17T09:33:20Z", "ms": 4014351199675.64 }, "end": { "local": "2097-03-17T13:21:20+03:00", "utc": "2097-03-17T10:21:20Z", "ms": 4014354079675.64 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:55 on Sat 16 Mar to 17:49 on Sun 17 Mar.", "fact": "2097-03-16T16:54:46Z → 2097-03-17T14:49:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 16th, 12:33–13:21 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16077 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Sunday 17 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": "2097-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-17", "confidence": "determinate" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Sunday 17 March. Caturthī runs from 19:55 on Sat 16 Mar to 17:49 on Sun 17 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-03-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-03-23", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4766, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-03-23T05:27:24+03:00", "utc": "2097-03-23T02:27:24Z", "ms": 4014844044157.5938 }, "end": { "local": "2097-03-24T03:48:41+03:00", "utc": "2097-03-24T00:48:41Z", "ms": 4014924520801.757 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-23T05:27:24+03:00", "utc": "2097-03-23T02:27:24Z", "ms": 4014844044157.5938 }, "end": { "local": "2097-03-24T03:48:41+03:00", "utc": "2097-03-24T00:48:41Z", "ms": 4014924520801.757 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-03-23", "window": { "start": { "local": "2097-03-23T06:46:50+03:00", "utc": "2097-03-23T03:46:50Z", "ms": 4014848809975.864 }, "end": { "local": "2097-03-23T06:46:50+03:00", "utc": "2097-03-23T03:46:50Z", "ms": 4014848809975.864 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-03-24", "window": { "start": { "local": "2097-03-24T06:45:13+03:00", "utc": "2097-03-24T03:45:13Z", "ms": 4014935112908.684 }, "end": { "local": "2097-03-24T06:45:13+03:00", "utc": "2097-03-24T03:45:13Z", "ms": 4014935112908.684 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:27 on Sat 23 Mar to 03:49 on Sun 24 Mar.", "fact": "2097-03-23T02:27:24Z → 2097-03-24T00:48:41Z" }, { "step": "kaala", "text": "Sunrise is at 06:47 on the 23rd and 06:45 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 23rd and is not on the 24th.", "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 4766 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Ankara, 2097: Saturday 23 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": "2097-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-23", "confidence": "determinate" } ], "quote": "In Ankara, Āmalakī Ekādaśī 2097 falls on Saturday 23 March. Ekādaśī runs from 05:27 on Sat 23 Mar to 03:49 on Sun 24 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-03-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-03-25", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16920, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-03-25T02:25:07+03:00", "utc": "2097-03-24T23:25:07Z", "ms": 4015005907277.7544 }, "end": { "local": "2097-03-26T01:21:06+03:00", "utc": "2097-03-25T22:21:06Z", "ms": 4015088465681.985 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-25T02:25:07+03:00", "utc": "2097-03-24T23:25:07Z", "ms": 4015005907277.7544 }, "end": { "local": "2097-03-26T01:21:06+03:00", "utc": "2097-03-25T22:21:06Z", "ms": 4015088465681.985 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-03-24", "window": { "start": { "local": "2097-03-24T19:05:20+03:00", "utc": "2097-03-24T16:05:20Z", "ms": 4014979519950.819 }, "end": { "local": "2097-03-24T20:38:26+03:00", "utc": "2097-03-24T17:38:26Z", "ms": 4014985106073.449 } }, "covered_min": 0, "window_min": 93, "qualifies": false }, { "local_date": "2097-03-25", "window": { "start": { "local": "2097-03-25T19:06:21+03:00", "utc": "2097-03-25T16:06:21Z", "ms": 4015065981073.8184 }, "end": { "local": "2097-03-25T20:39:06+03:00", "utc": "2097-03-25T17:39:06Z", "ms": 4015071546116.4326 } }, "covered_min": 93, "window_min": 93, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:25 on Mon 25 Mar to 01:21 on Tue 26 Mar.", "fact": "2097-03-24T23:25:07Z → 2097-03-25T22:21:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:05–20:38 on the 24th, 19:06–20:39 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 93 minutes on the 24th and 93 of 93 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16920 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Monday 25 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": "2097-03-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-25", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Monday 25 March. Trayodaśī runs from 02:25 on Mon 25 Mar to 01:21 on Tue 26 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-03-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19319, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-03-27T00:41:19+03:00", "utc": "2097-03-26T21:41:19Z", "ms": 4015172479198.9077 }, "end": { "local": "2097-03-28T00:30:22+03:00", "utc": "2097-03-27T21:30:22Z", "ms": 4015258222285.24 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-27T00:41:19+03:00", "utc": "2097-03-26T21:41:19Z", "ms": 4015172479198.9077 }, "end": { "local": "2097-03-28T00:30:22+03:00", "utc": "2097-03-27T21:30:22Z", "ms": 4015258222285.24 } }, "kaala": "sayahna", "days": [ { "local_date": "2097-03-26", "window": { "start": { "local": "2097-03-26T16:38:17+03:00", "utc": "2097-03-26T13:38:17Z", "ms": 4015143497455.7144 }, "end": { "local": "2097-03-26T19:07:22+03:00", "utc": "2097-03-26T16:07:22Z", "ms": 4015152442096.287 } }, "covered_min": 0, "window_min": 149, "qualifies": false }, { "local_date": "2097-03-27", "window": { "start": { "local": "2097-03-27T16:38:47+03:00", "utc": "2097-03-27T13:38:47Z", "ms": 4015229926828.726 }, "end": { "local": "2097-03-27T19:08:23+03:00", "utc": "2097-03-27T16:08:23Z", "ms": 4015238903033.615 } }, "covered_min": 150, "window_min": 150, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:41 on Wed 27 Mar to 00:30 on Thu 28 Mar.", "fact": "2097-03-26T21:41:19Z → 2097-03-27T21:30:22Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:38–19:07 on the 26th, 16:39–19:08 on the 27th.", "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 149 minutes on the 26th and 150 of 150 on the 27th.", "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 19319 s" }, { "step": "ruling", "text": "Holikā Dahana, Ankara, 2097: Wednesday 27 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": "2097-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-27", "confidence": "determinate" } ], "quote": "In Ankara, Holikā Dahana 2097 falls on Wednesday 27 March. Pūrṇimā runs from 00:41 on Wed 27 Mar to 00:30 on Thu 28 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19319, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-03-27T00:41:19+03:00", "utc": "2097-03-26T21:41:19Z", "ms": 4015172479198.9077 }, "end": { "local": "2097-03-28T00:30:22+03:00", "utc": "2097-03-27T21:30:22Z", "ms": 4015258222285.24 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2097-03-27T00:41:19+03:00", "utc": "2097-03-26T21:41:19Z", "ms": 4015172479198.9077 }, "end": { "local": "2097-03-28T00:30:22+03:00", "utc": "2097-03-27T21:30:22Z", "ms": 4015258222285.24 } }, "kaala": "sayahna", "days": [ { "local_date": "2097-03-26", "window": { "start": { "local": "2097-03-26T16:38:17+03:00", "utc": "2097-03-26T13:38:17Z", "ms": 4015143497455.7144 }, "end": { "local": "2097-03-26T19:07:22+03:00", "utc": "2097-03-26T16:07:22Z", "ms": 4015152442096.287 } }, "covered_min": 0, "window_min": 149, "qualifies": false }, { "local_date": "2097-03-27", "window": { "start": { "local": "2097-03-27T16:38:47+03:00", "utc": "2097-03-27T13:38:47Z", "ms": 4015229926828.726 }, "end": { "local": "2097-03-27T19:08:23+03:00", "utc": "2097-03-27T16:08:23Z", "ms": 4015238903033.615 } }, "covered_min": 150, "window_min": 150, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2097-03-27", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:41 on Wed 27 Mar to 00:30 on Thu 28 Mar.", "fact": "2097-03-26T21:41:19Z → 2097-03-27T21:30:22Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:38–19:07 on the 26th, 16:39–19:08 on the 27th.", "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 149 minutes on the 26th and 150 of 150 on the 27th.", "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 19319 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Wednesday 27 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Ankara, 2097: Thursday 28 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": "2097-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-28", "confidence": "determinate" } ], "quote": "In Ankara, Holī 2097 falls on Thursday 28 March. It is kept the day after Holikā Dahana, which falls on Wednesday 27 March. Pūrṇimā runs from 00:41 on Wed 27 Mar to 00:30 on Thu 28 Mar and covers all of sāyāhna on the 27th.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20710, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2097-03-28T00:30:22+03:00", "utc": "2097-03-27T21:30:22Z", "ms": 4015258222285.24 }, "end": { "local": "2097-03-29T00:51:59+03:00", "utc": "2097-03-28T21:51:59Z", "ms": 4015345918912.2007 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-03-28T00:30:22+03:00", "utc": "2097-03-27T21:30:22Z", "ms": 4015258222285.24 }, "end": { "local": "2097-03-29T00:51:59+03:00", "utc": "2097-03-28T21:51:59Z", "ms": 4015345918912.2007 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-03-28", "window": { "start": { "local": "2097-03-28T06:38:45+03:00", "utc": "2097-03-28T03:38:45Z", "ms": 4015280325249.4736 }, "end": { "local": "2097-03-28T06:38:45+03:00", "utc": "2097-03-28T03:38:45Z", "ms": 4015280325249.4736 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-03-29", "window": { "start": { "local": "2097-03-29T06:37:09+03:00", "utc": "2097-03-29T03:37:09Z", "ms": 4015366628645.883 }, "end": { "local": "2097-03-29T06:37:09+03:00", "utc": "2097-03-29T03:37:09Z", "ms": 4015366628645.883 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 00:30 on Thu 28 Mar to 00:52 on Fri 29 Mar.", "fact": "2097-03-27T21:30:22Z → 2097-03-28T21:51:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:39 on the 28th and 06:37 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 28th and is not 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: purvaviddha → only-day · margin 20710 s" }, { "step": "ruling", "text": "Vasantotsava, Ankara, 2097: Thursday 28 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": "2097-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-28", "confidence": "determinate" } ], "quote": "In Ankara, Vasantotsava 2097 falls on Thursday 28 March. Pratipadā runs from 00:30 on Thu 28 Mar to 00:52 on Fri 29 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-03-31", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19134, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-03-31T03:18:22+03:00", "utc": "2097-03-31T00:18:22Z", "ms": 4015527502209.6055 }, "end": { "local": "2097-04-01T05:18:29+03:00", "utc": "2097-04-01T02:18:29Z", "ms": 4015621109397.6895 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-03-31T03:18:22+03:00", "utc": "2097-03-31T00:18:22Z", "ms": 4015527502209.6055 }, "end": { "local": "2097-04-01T05:18:29+03:00", "utc": "2097-04-01T02:18:29Z", "ms": 4015621109397.6895 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-03-30", "window": { "start": { "local": "2097-03-30T21:59:28+03:00", "utc": "2097-03-30T18:59:28Z", "ms": 4015508367782.921 }, "end": { "local": "2097-03-30T21:59:28+03:00", "utc": "2097-03-30T18:59:28Z", "ms": 4015508367782.921 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-03-31", "window": { "start": { "local": "2097-03-31T23:02:51+03:00", "utc": "2097-03-31T20:02:51Z", "ms": 4015598571479.756 }, "end": { "local": "2097-03-31T23:02:51+03:00", "utc": "2097-03-31T20:02:51Z", "ms": 4015598571479.756 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:18 on Sun 31 Mar to 05:18 on Mon 1 Apr.", "fact": "2097-03-31T00:18:22Z → 2097-04-01T02:18:29Z" }, { "step": "kaala", "text": "Moonrise is at 21:59 on the 30th and 23:03 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 30th and is on the 31st.", "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 19134 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Sunday 31 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": "2097-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-03-31", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Sunday 31 March. Caturthī runs from 03:18 on Sun 31 Mar to 05:18 on Mon 1 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-03-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 878, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-04-04T12:42:39+03:00", "utc": "2097-04-04T09:42:39Z", "ms": 4015906959320.767 }, "end": { "local": "2097-04-05T14:54:29+03:00", "utc": "2097-04-05T11:54:29Z", "ms": 4016001268631.313 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-04T12:42:39+03:00", "utc": "2097-04-04T09:42:39Z", "ms": 4015906959320.767 }, "end": { "local": "2097-04-05T14:54:29+03:00", "utc": "2097-04-05T11:54:29Z", "ms": 4016001268631.313 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-04", "window": { "start": { "local": "2097-04-04T12:28:02+03:00", "utc": "2097-04-04T09:28:02Z", "ms": 4015906081586.3066 }, "end": { "local": "2097-04-04T13:16:02+03:00", "utc": "2097-04-04T10:16:02Z", "ms": 4015908961586.3066 } }, "covered_min": 33, "window_min": 48, "qualifies": true }, { "local_date": "2097-04-05", "window": { "start": { "local": "2097-04-05T12:27:45+03:00", "utc": "2097-04-05T09:27:45Z", "ms": 4015992464641.451 }, "end": { "local": "2097-04-05T13:15:45+03:00", "utc": "2097-04-05T10:15:45Z", "ms": 4015995344641.451 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:43 on Thu 4 Apr to 14:54 on Fri 5 Apr.", "fact": "2097-04-04T09:42:39Z → 2097-04-05T11:54:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 4th, 12:28–13:16 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 33 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": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 878 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Ankara, 2097: Thursday 4 April.", "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": "2097-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-04", "confidence": "determinate" } ], "quote": "In Ankara, Śītalāṣṭamī 2097 falls on Thursday 4 April. Aṣṭamī runs from 12:43 on Thu 4 Apr to 14:54 on Fri 5 Apr and covers 33 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-04-08", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40560, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-04-07T17:38:51+03:00", "utc": "2097-04-07T14:38:51Z", "ms": 4016183931461.358 }, "end": { "local": "2097-04-08T17:57:33+03:00", "utc": "2097-04-08T14:57:33Z", "ms": 4016271453063.6006 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-07T17:38:51+03:00", "utc": "2097-04-07T14:38:51Z", "ms": 4016183931461.358 }, "end": { "local": "2097-04-08T17:57:33+03:00", "utc": "2097-04-08T14:57:33Z", "ms": 4016271453063.6006 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-04-07", "window": { "start": { "local": "2097-04-07T06:22:51+03:00", "utc": "2097-04-07T03:22:51Z", "ms": 4016143371387.157 }, "end": { "local": "2097-04-07T06:22:51+03:00", "utc": "2097-04-07T03:22:51Z", "ms": 4016143371387.157 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-04-08", "window": { "start": { "local": "2097-04-08T06:21:18+03:00", "utc": "2097-04-08T03:21:18Z", "ms": 4016229678054.593 }, "end": { "local": "2097-04-08T06:21:18+03:00", "utc": "2097-04-08T03:21:18Z", "ms": 4016229678054.593 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:39 on Sun 7 Apr to 17:58 on Mon 8 Apr.", "fact": "2097-04-07T14:38:51Z → 2097-04-08T14:57:33Z" }, { "step": "kaala", "text": "Sunrise is at 06:23 on the 7th and 06:21 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 7th and is on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 40560 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Ankara, 2097: Monday 8 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": "2097-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-08", "confidence": "determinate" } ], "quote": "In Ankara, Pāpamocanī Ekādaśī 2097 falls on Monday 8 April. Ekādaśī runs from 17:39 on Sun 7 Apr to 17:58 on Mon 8 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-04-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-04-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6589, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-04-09T17:31:44+03:00", "utc": "2097-04-09T14:31:44Z", "ms": 4016356304076.108 }, "end": { "local": "2097-04-10T16:24:20+03:00", "utc": "2097-04-10T13:24:20Z", "ms": 4016438659903.4883 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-09T17:31:44+03:00", "utc": "2097-04-09T14:31:44Z", "ms": 4016356304076.108 }, "end": { "local": "2097-04-10T16:24:20+03:00", "utc": "2097-04-10T13:24:20Z", "ms": 4016438659903.4883 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-04-09", "window": { "start": { "local": "2097-04-09T19:21:33+03:00", "utc": "2097-04-09T16:21:33Z", "ms": 4016362893121.9546 }, "end": { "local": "2097-04-09T20:49:06+03:00", "utc": "2097-04-09T17:49:06Z", "ms": 4016368146426.298 } }, "covered_min": 88, "window_min": 88, "qualifies": true }, { "local_date": "2097-04-10", "window": { "start": { "local": "2097-04-10T19:22:34+03:00", "utc": "2097-04-10T16:22:34Z", "ms": 4016449354014.4355 }, "end": { "local": "2097-04-10T20:49:47+03:00", "utc": "2097-04-10T17:49:47Z", "ms": 4016454586965.258 } }, "covered_min": 0, "window_min": 87, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:32 on Tue 9 Apr to 16:24 on Wed 10 Apr.", "fact": "2097-04-09T14:31:44Z → 2097-04-10T13:24:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:22–20:49 on the 9th, 19:23–20:50 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 88 of 88 minutes on the 9th and 0 of 87 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6589 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Tuesday 9 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": "2097-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-09", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Tuesday 9 April. Trayodaśī runs from 17:32 on Tue 9 Apr to 16:24 on Wed 10 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-04-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-04-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28878, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-04-10T16:24:20+03:00", "utc": "2097-04-10T13:24:20Z", "ms": 4016438659903.4883 }, "end": { "local": "2097-04-11T14:40:48+03:00", "utc": "2097-04-11T11:40:48Z", "ms": 4016518847733.684 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-10T16:24:20+03:00", "utc": "2097-04-10T13:24:20Z", "ms": 4016438659903.4883 }, "end": { "local": "2097-04-11T14:40:48+03:00", "utc": "2097-04-11T11:40:48Z", "ms": 4016518847733.684 } }, "kaala": "nishita", "days": [ { "local_date": "2097-04-10", "window": { "start": { "local": "2097-04-11T00:25:38+03:00", "utc": "2097-04-10T21:25:38Z", "ms": 4016467537580.0186 }, "end": { "local": "2097-04-11T01:13:38+03:00", "utc": "2097-04-10T22:13:38Z", "ms": 4016470417580.0186 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-04-11", "window": { "start": { "local": "2097-04-12T00:25:22+03:00", "utc": "2097-04-11T21:25:22Z", "ms": 4016553922453.186 }, "end": { "local": "2097-04-12T01:13:22+03:00", "utc": "2097-04-11T22:13:22Z", "ms": 4016556802453.186 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:24 on Wed 10 Apr to 14:41 on Thu 11 Apr.", "fact": "2097-04-10T13:24:20Z → 2097-04-11T11:40:48Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:26–01:14 on the 10th, 00:25–01:13 on the 11th.", "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 10th and 0 of 48 on the 11th.", "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 28878 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Wednesday 10 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": "2097-04-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-10", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Wednesday 10 April. Caturdaśī runs from 16:24 on Wed 10 Apr to 14:41 on Thu 11 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-04-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-12", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 136, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2097-04-12T12:28:09+03:00", "utc": "2097-04-12T09:28:09Z", "ms": 4016597288874.9756 }, "end": { "local": "2097-04-13T09:54:11+03:00", "utc": "2097-04-13T06:54:11Z", "ms": 4016674450721.7593 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-12T12:28:09+03:00", "utc": "2097-04-12T09:28:09Z", "ms": 4016597288874.9756 }, "end": { "local": "2097-04-13T09:54:11+03:00", "utc": "2097-04-13T06:54:11Z", "ms": 4016674450721.7593 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-12", "window": { "start": { "local": "2097-04-12T12:25:53+03:00", "utc": "2097-04-12T09:25:53Z", "ms": 4016597152928.5234 }, "end": { "local": "2097-04-12T13:13:53+03:00", "utc": "2097-04-12T10:13:53Z", "ms": 4016600032928.5234 } }, "covered_min": 46, "window_min": 48, "qualifies": true }, { "local_date": "2097-04-13", "window": { "start": { "local": "2097-04-13T12:25:38+03:00", "utc": "2097-04-13T09:25:38Z", "ms": 4016683538132.0195 }, "end": { "local": "2097-04-13T13:13:38+03:00", "utc": "2097-04-13T10:13:38Z", "ms": 4016686418132.0195 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:28 on Fri 12 Apr to 09:54 on Sat 13 Apr.", "fact": "2097-04-12T09:28:09Z → 2097-04-13T06:54:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 12th, 12:26–13:14 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 46 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 136 s < 300 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Ankara, 2097: Friday 12 April.", "fact": "confidence: boundary (margin)" } ], "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": "2097-04-12", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-12", "confidence": "determinate" } ], "quote": "In Ankara, Navarātrārambha (Caitra) (Chaitra Navratri) 2097 falls on Friday 12 April. Pratipadā runs from 12:28 on Fri 12 Apr to 09:54 on Sat 13 Apr and covers 46 of 48 minutes of madhyāhna that midday. It is 2 min 16 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20326, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2097-04-14T11:50:55+03:00", "utc": "2097-04-14T08:50:55Z", "ms": 4016767855211.307 }, "end": { "local": "2097-05-15T08:34:02+03:00", "utc": "2097-05-15T05:34:02Z", "ms": 4019434442268.2285 } }, "span": { "of": "transit", "start": { "local": "2097-04-14T11:50:55+03:00", "utc": "2097-04-14T08:50:55Z", "ms": 4016767855211.307 }, "end": { "local": "2097-04-14T11:50:55+03:00", "utc": "2097-04-14T08:50:55Z", "ms": 4016767855211.307 } }, "kaala": "day", "days": [ { "local_date": "2097-04-13", "window": { "start": { "local": "2097-04-13T06:13:39+03:00", "utc": "2097-04-13T03:13:39Z", "ms": 4016661219402.089 }, "end": { "local": "2097-04-14T06:12:09+03:00", "utc": "2097-04-14T03:12:09Z", "ms": 4016747529473.0327 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "2097-04-14", "window": { "start": { "local": "2097-04-14T06:12:09+03:00", "utc": "2097-04-14T03:12:09Z", "ms": 4016747529473.0327 }, "end": { "local": "2097-04-15T06:10:40+03:00", "utc": "2097-04-15T03:10:40Z", "ms": 4016833840209.48 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 11:51 on Sun 14 Apr.", "fact": "2097-04-14T08:50:55Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:14 on the 13th, and from 06:12 on the 14th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 20326 s" }, { "step": "ruling", "text": "Vaiśākhī, Ankara, 2097: Sunday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2097-04-14", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "2097-04-14", "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 Ankara, Vaiśākhī 2097 falls on Sunday 14 April. The Sun enters Meṣa at 11:51 on Sun 14 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19113, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2097-04-14T07:06:51+03:00", "utc": "2097-04-14T04:06:51Z", "ms": 4016750810528.8555 }, "end": { "local": "2097-04-15T04:13:50+03:00", "utc": "2097-04-15T01:13:50Z", "ms": 4016826829573.3687 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-14T07:06:51+03:00", "utc": "2097-04-14T04:06:51Z", "ms": 4016750810528.8555 }, "end": { "local": "2097-04-15T04:13:50+03:00", "utc": "2097-04-15T01:13:50Z", "ms": 4016826829573.3687 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-14", "window": { "start": { "local": "2097-04-14T12:25:24+03:00", "utc": "2097-04-14T09:25:24Z", "ms": 4016769923663.0195 }, "end": { "local": "2097-04-14T13:13:24+03:00", "utc": "2097-04-14T10:13:24Z", "ms": 4016772803663.0195 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-04-15", "window": { "start": { "local": "2097-04-15T12:25:10+03:00", "utc": "2097-04-15T09:25:10Z", "ms": 4016856309532.1284 }, "end": { "local": "2097-04-15T13:13:10+03:00", "utc": "2097-04-15T10:13:10Z", "ms": 4016859189532.1284 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 07:07 on Sun 14 Apr to 04:14 on Mon 15 Apr.", "fact": "2097-04-14T04:06:51Z → 2097-04-15T01:13:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 14th, 12:25–13:13 on the 15th.", "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 14th and 0 of 48 on the 15th.", "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 19113 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Ankara, 2097: Sunday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-14", "confidence": "determinate" } ], "quote": "In Ankara, Gaurī Tṛtīyā (Gangaur) 2097 falls on Sunday 14 April. Tṛtīyā runs from 07:07 on Sun 14 Apr to 04:14 on Mon 15 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19113, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2097-04-14T07:06:51+03:00", "utc": "2097-04-14T04:06:51Z", "ms": 4016750810528.8555 }, "end": { "local": "2097-04-15T04:13:50+03:00", "utc": "2097-04-15T01:13:50Z", "ms": 4016826829573.3687 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-14T07:06:51+03:00", "utc": "2097-04-14T04:06:51Z", "ms": 4016750810528.8555 }, "end": { "local": "2097-04-15T04:13:50+03:00", "utc": "2097-04-15T01:13:50Z", "ms": 4016826829573.3687 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-14", "window": { "start": { "local": "2097-04-14T12:25:24+03:00", "utc": "2097-04-14T09:25:24Z", "ms": 4016769923663.0195 }, "end": { "local": "2097-04-14T13:13:24+03:00", "utc": "2097-04-14T10:13:24Z", "ms": 4016772803663.0195 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-04-15", "window": { "start": { "local": "2097-04-15T12:25:10+03:00", "utc": "2097-04-15T09:25:10Z", "ms": 4016856309532.1284 }, "end": { "local": "2097-04-15T13:13:10+03:00", "utc": "2097-04-15T10:13:10Z", "ms": 4016859189532.1284 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 07:07 on Sun 14 Apr to 04:14 on Mon 15 Apr.", "fact": "2097-04-14T04:06:51Z → 2097-04-15T01:13:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 14th, 12:25–13:13 on the 15th.", "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 14th and 0 of 48 on the 15th.", "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 19113 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Ankara, 2097: Sunday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-14", "confidence": "determinate" } ], "quote": "In Ankara, Saubhāgya Śayana Vrata 2097 falls on Sunday 14 April. Tṛtīyā runs from 07:07 on Sun 14 Apr to 04:14 on Mon 15 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-04-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29480, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-04-15T04:13:50+03:00", "utc": "2097-04-15T01:13:50Z", "ms": 4016826829573.3687 }, "end": { "local": "2097-04-16T01:22:15+03:00", "utc": "2097-04-15T22:22:15Z", "ms": 4016902935145.636 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-15T04:13:50+03:00", "utc": "2097-04-15T01:13:50Z", "ms": 4016826829573.3687 }, "end": { "local": "2097-04-16T01:22:15+03:00", "utc": "2097-04-15T22:22:15Z", "ms": 4016902935145.636 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-15", "window": { "start": { "local": "2097-04-15T12:25:10+03:00", "utc": "2097-04-15T09:25:10Z", "ms": 4016856309532.1284 }, "end": { "local": "2097-04-15T13:13:10+03:00", "utc": "2097-04-15T10:13:10Z", "ms": 4016859189532.1284 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-04-16", "window": { "start": { "local": "2097-04-16T12:24:56+03:00", "utc": "2097-04-16T09:24:56Z", "ms": 4016942695750.0503 }, "end": { "local": "2097-04-16T13:12:56+03:00", "utc": "2097-04-16T10:12:56Z", "ms": 4016945575750.0503 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:14 on Mon 15 Apr to 01:22 on Tue 16 Apr.", "fact": "2097-04-15T01:13:50Z → 2097-04-15T22:22:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 15th, 12:25–13:13 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29480 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Monday 15 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": "2097-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-15", "confidence": "determinate" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Monday 15 April. Caturthī runs from 04:14 on Mon 15 Apr to 01:22 on Tue 16 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-04-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33932, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2097-04-16T01:22:15+03:00", "utc": "2097-04-15T22:22:15Z", "ms": 4016902935145.636 }, "end": { "local": "2097-04-16T22:38:28+03:00", "utc": "2097-04-16T19:38:28Z", "ms": 4016979508123.567 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-16T01:22:15+03:00", "utc": "2097-04-15T22:22:15Z", "ms": 4016902935145.636 }, "end": { "local": "2097-04-16T22:38:28+03:00", "utc": "2097-04-16T19:38:28Z", "ms": 4016979508123.567 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-15", "window": { "start": { "local": "2097-04-15T12:25:10+03:00", "utc": "2097-04-15T09:25:10Z", "ms": 4016856309532.1284 }, "end": { "local": "2097-04-15T13:13:10+03:00", "utc": "2097-04-15T10:13:10Z", "ms": 4016859189532.1284 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-04-16", "window": { "start": { "local": "2097-04-16T12:24:56+03:00", "utc": "2097-04-16T09:24:56Z", "ms": 4016942695750.0503 }, "end": { "local": "2097-04-16T13:12:56+03:00", "utc": "2097-04-16T10:12:56Z", "ms": 4016945575750.0503 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:22 on Tue 16 Apr to 22:38 on Tue 16 Apr.", "fact": "2097-04-15T22:22:15Z → 2097-04-16T19:38:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 15th, 12:25–13:13 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33932 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Ankara, 2097: Tuesday 16 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-16", "confidence": "determinate" } ], "quote": "In Ankara, Lakṣmī Pañcamī 2097 falls on Tuesday 16 April. Pañcamī runs from 01:22 on Tue 16 Apr to 22:38 on Tue 16 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10264, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-04-18T17:55:03+03:00", "utc": "2097-04-18T14:55:03Z", "ms": 4017135302700.8027 }, "end": { "local": "2097-04-19T16:03:20+03:00", "utc": "2097-04-19T13:03:20Z", "ms": 4017215000405.8096 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-18T17:55:03+03:00", "utc": "2097-04-18T14:55:03Z", "ms": 4017135302700.8027 }, "end": { "local": "2097-04-19T16:03:20+03:00", "utc": "2097-04-19T13:03:20Z", "ms": 4017215000405.8096 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-18", "window": { "start": { "local": "2097-04-18T12:24:29+03:00", "utc": "2097-04-18T09:24:29Z", "ms": 4017115469277.8823 }, "end": { "local": "2097-04-18T13:12:29+03:00", "utc": "2097-04-18T10:12:29Z", "ms": 4017118349277.8823 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-04-19", "window": { "start": { "local": "2097-04-19T12:24:17+03:00", "utc": "2097-04-19T09:24:17Z", "ms": 4017201856612.4956 }, "end": { "local": "2097-04-19T13:12:17+03:00", "utc": "2097-04-19T10:12:17Z", "ms": 4017204736612.4956 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:55 on Thu 18 Apr to 16:03 on Fri 19 Apr.", "fact": "2097-04-18T14:55:03Z → 2097-04-19T13:03:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 18th, 12:24–13:12 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10264 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Ankara, 2097: Friday 19 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": "2097-04-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-19", "confidence": "determinate" } ], "quote": "In Ankara, Bhavānī Utpatti 2097 falls on Friday 19 April. Aṣṭamī runs from 17:55 on Thu 18 Apr to 16:03 on Fri 19 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4998, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2097-04-19T16:03:20+03:00", "utc": "2097-04-19T13:03:20Z", "ms": 4017215000405.8096 }, "end": { "local": "2097-04-20T14:35:22+03:00", "utc": "2097-04-20T11:35:22Z", "ms": 4017296122020.9634 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-19T16:03:20+03:00", "utc": "2097-04-19T13:03:20Z", "ms": 4017215000405.8096 }, "end": { "local": "2097-04-20T14:35:22+03:00", "utc": "2097-04-20T11:35:22Z", "ms": 4017296122020.9634 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-19", "window": { "start": { "local": "2097-04-19T12:24:17+03:00", "utc": "2097-04-19T09:24:17Z", "ms": 4017201856612.4956 }, "end": { "local": "2097-04-19T13:12:17+03:00", "utc": "2097-04-19T10:12:17Z", "ms": 4017204736612.4956 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-04-20", "window": { "start": { "local": "2097-04-20T12:24:04+03:00", "utc": "2097-04-20T09:24:04Z", "ms": 4017288244345.299 }, "end": { "local": "2097-04-20T13:12:04+03:00", "utc": "2097-04-20T10:12:04Z", "ms": 4017291124345.299 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 16:03 on Fri 19 Apr to 14:35 on Sat 20 Apr.", "fact": "2097-04-19T13:03:20Z → 2097-04-20T11:35:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 19th, 12:24–13:12 on the 20th.", "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 19th and 48 of 48 on the 20th.", "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 4998 s" }, { "step": "ruling", "text": "Rāma Navamī, Ankara, 2097: Saturday 20 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": "2097-04-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-20", "confidence": "determinate" } ], "quote": "In Ankara, Rāma Navamī 2097 falls on Saturday 20 April. Navamī runs from 16:03 on Fri 19 Apr to 14:35 on Sat 20 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-04-22", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24996, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-04-21T13:32:55+03:00", "utc": "2097-04-21T10:32:55Z", "ms": 4017378775361.885 }, "end": { "local": "2097-04-22T12:57:12+03:00", "utc": "2097-04-22T09:57:12Z", "ms": 4017463032329.6646 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-21T13:32:55+03:00", "utc": "2097-04-21T10:32:55Z", "ms": 4017378775361.885 }, "end": { "local": "2097-04-22T12:57:12+03:00", "utc": "2097-04-22T09:57:12Z", "ms": 4017463032329.6646 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-04-21", "window": { "start": { "local": "2097-04-21T06:02:00+03:00", "utc": "2097-04-21T03:02:00Z", "ms": 4017351720257.246 }, "end": { "local": "2097-04-21T06:02:00+03:00", "utc": "2097-04-21T03:02:00Z", "ms": 4017351720257.246 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-04-22", "window": { "start": { "local": "2097-04-22T06:00:36+03:00", "utc": "2097-04-22T03:00:36Z", "ms": 4017438036494.9863 }, "end": { "local": "2097-04-22T06:00:36+03:00", "utc": "2097-04-22T03:00:36Z", "ms": 4017438036494.9863 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:33 on Sun 21 Apr to 12:57 on Mon 22 Apr.", "fact": "2097-04-21T10:32:55Z → 2097-04-22T09:57:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:02 on the 21st and 06:01 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24996 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Ankara, 2097: Monday 22 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": "2097-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-22", "confidence": "determinate" } ], "quote": "In Ankara, Kāmadā Ekādaśī 2097 falls on Monday 22 April. Ekādaśī runs from 13:33 on Sun 21 Apr to 12:57 on Mon 22 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-04-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-23", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 162, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-04-23T12:48:58+03:00", "utc": "2097-04-23T09:48:58Z", "ms": 4017548938376.759 }, "end": { "local": "2097-04-24T13:08:37+03:00", "utc": "2097-04-24T10:08:37Z", "ms": 4017636517375.936 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-23T12:48:58+03:00", "utc": "2097-04-23T09:48:58Z", "ms": 4017548938376.759 }, "end": { "local": "2097-04-24T13:08:37+03:00", "utc": "2097-04-24T10:08:37Z", "ms": 4017636517375.936 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-23", "window": { "start": { "local": "2097-04-23T12:23:30+03:00", "utc": "2097-04-23T09:23:30Z", "ms": 4017547410074.1997 }, "end": { "local": "2097-04-23T13:11:30+03:00", "utc": "2097-04-23T10:11:30Z", "ms": 4017550290074.1997 } }, "covered_min": 23, "window_min": 48, "qualifies": true }, { "local_date": "2097-04-24", "window": { "start": { "local": "2097-04-24T12:23:20+03:00", "utc": "2097-04-24T09:23:20Z", "ms": 4017633799541.775 }, "end": { "local": "2097-04-24T13:11:20+03:00", "utc": "2097-04-24T10:11:20Z", "ms": 4017636679541.775 } }, "covered_min": 45, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:49 on Tue 23 Apr to 13:09 on Wed 24 Apr.", "fact": "2097-04-23T09:48:58Z → 2097-04-24T10:08:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 23rd, 12:23–13:11 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 23 of 48 minutes on the 23rd and 45 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 162 s < 300 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Ankara, 2097: Tuesday 23 April.", "fact": "confidence: boundary (margin)" } ], "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": "2097-04-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-23", "confidence": "determinate" } ], "quote": "In Ankara, Anaṅga Trayodaśī 2097 falls on Tuesday 23 April. Trayodaśī runs from 12:49 on Tue 23 Apr to 13:09 on Wed 24 Apr and covers 23 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 45 minutes; by the rule the first midday is taken. It is 2 min 42 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pradosha-vrata?on=2097-04-23", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23290, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-04-23T12:48:58+03:00", "utc": "2097-04-23T09:48:58Z", "ms": 4017548938376.759 }, "end": { "local": "2097-04-24T13:08:37+03:00", "utc": "2097-04-24T10:08:37Z", "ms": 4017636517375.936 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-23T12:48:58+03:00", "utc": "2097-04-23T09:48:58Z", "ms": 4017548938376.759 }, "end": { "local": "2097-04-24T13:08:37+03:00", "utc": "2097-04-24T10:08:37Z", "ms": 4017636517375.936 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-04-23", "window": { "start": { "local": "2097-04-23T19:35:47+03:00", "utc": "2097-04-23T16:35:47Z", "ms": 4017573346502.078 }, "end": { "local": "2097-04-23T20:58:43+03:00", "utc": "2097-04-23T17:58:43Z", "ms": 4017578323200.988 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "2097-04-24", "window": { "start": { "local": "2097-04-24T19:36:47+03:00", "utc": "2097-04-24T16:36:47Z", "ms": 4017659807339.6475 }, "end": { "local": "2097-04-24T20:59:25+03:00", "utc": "2097-04-24T17:59:25Z", "ms": 4017664765137.0835 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:49 on Tue 23 Apr to 13:09 on Wed 24 Apr.", "fact": "2097-04-23T09:48:58Z → 2097-04-24T10:08:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:36–20:59 on the 23rd, 19:37–20:59 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 23rd and 0 of 83 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23290 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Tuesday 23 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": "2097-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-23", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Tuesday 23 April. Trayodaśī runs from 12:49 on Tue 23 Apr to 13:09 on Wed 24 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-04-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-25", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 162, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-04-24T13:08:37+03:00", "utc": "2097-04-24T10:08:37Z", "ms": 4017636517375.936 }, "end": { "local": "2097-04-25T13:56:08+03:00", "utc": "2097-04-25T10:56:08Z", "ms": 4017725768456.6187 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-24T13:08:37+03:00", "utc": "2097-04-24T10:08:37Z", "ms": 4017636517375.936 }, "end": { "local": "2097-04-25T13:56:08+03:00", "utc": "2097-04-25T10:56:08Z", "ms": 4017725768456.6187 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-24", "window": { "start": { "local": "2097-04-24T12:23:20+03:00", "utc": "2097-04-24T09:23:20Z", "ms": 4017633799541.775 }, "end": { "local": "2097-04-24T13:11:20+03:00", "utc": "2097-04-24T10:11:20Z", "ms": 4017636679541.775 } }, "covered_min": 3, "window_min": 48, "qualifies": true }, { "local_date": "2097-04-25", "window": { "start": { "local": "2097-04-25T12:23:09+03:00", "utc": "2097-04-25T09:23:09Z", "ms": 4017720189478.4624 }, "end": { "local": "2097-04-25T13:11:09+03:00", "utc": "2097-04-25T10:11:09Z", "ms": 4017723069478.4624 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:09 on Wed 24 Apr to 13:56 on Thu 25 Apr.", "fact": "2097-04-24T10:08:37Z → 2097-04-25T10:56:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 24th, 12:23–13:11 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 3 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 162 s < 300 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Ankara, 2097: Thursday 25 April.", "fact": "confidence: boundary (margin)" } ], "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": "2097-04-25", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-25", "confidence": "determinate" } ], "quote": "In Ankara, Viṣṇudamanaka Caturdaśī 2097 falls on Thursday 25 April. Caturdaśī runs from 13:09 on Wed 24 Apr to 13:56 on Thu 25 Apr and covers all of madhyāhna that midday. It also reaches the previous midday for 3 minutes; by the rule the second midday is taken. It is 2 min 42 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2699, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-04-25T13:56:08+03:00", "utc": "2097-04-25T10:56:08Z", "ms": 4017725768456.6187 }, "end": { "local": "2097-04-26T15:10:53+03:00", "utc": "2097-04-26T12:10:53Z", "ms": 4017816652671.785 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2097-04-25T13:56:08+03:00", "utc": "2097-04-25T10:56:08Z", "ms": 4017725768456.6187 }, "end": { "local": "2097-04-26T15:10:53+03:00", "utc": "2097-04-26T12:10:53Z", "ms": 4017816652671.785 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-04-25", "window": { "start": { "local": "2097-04-25T12:23:09+03:00", "utc": "2097-04-25T09:23:09Z", "ms": 4017720189478.4624 }, "end": { "local": "2097-04-25T13:11:09+03:00", "utc": "2097-04-25T10:11:09Z", "ms": 4017723069478.4624 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-04-26", "window": { "start": { "local": "2097-04-26T12:23:00+03:00", "utc": "2097-04-26T09:23:00Z", "ms": 4017806579897.699 }, "end": { "local": "2097-04-26T13:11:00+03:00", "utc": "2097-04-26T10:11:00Z", "ms": 4017809459897.699 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:56 on Thu 25 Apr to 15:11 on Fri 26 Apr.", "fact": "2097-04-25T10:56:08Z → 2097-04-26T12:10:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 25th, 12:23–13:11 on the 26th.", "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 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2699 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Ankara, 2097: Friday 26 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": "2097-04-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-26", "confidence": "determinate" } ], "quote": "In Ankara, Caitrī Pūrṇimā 2097 falls on Friday 26 April. Pūrṇimā runs from 13:56 on Thu 25 Apr to 15:11 on Fri 26 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-04-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 580, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-04-29T21:13:33+03:00", "utc": "2097-04-29T18:13:33Z", "ms": 4018097613140.8413 }, "end": { "local": "2097-04-30T23:42:55+03:00", "utc": "2097-04-30T20:42:55Z", "ms": 4018192975260.0254 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-04-29T21:13:33+03:00", "utc": "2097-04-29T18:13:33Z", "ms": 4018097613140.8413 }, "end": { "local": "2097-04-30T23:42:55+03:00", "utc": "2097-04-30T20:42:55Z", "ms": 4018192975260.0254 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-04-29", "window": { "start": { "local": "2097-04-29T22:55:00+03:00", "utc": "2097-04-29T19:55:00Z", "ms": 4018103700227.9907 }, "end": { "local": "2097-04-29T22:55:00+03:00", "utc": "2097-04-29T19:55:00Z", "ms": 4018103700227.9907 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-04-30", "window": { "start": { "local": "2097-04-30T23:52:36+03:00", "utc": "2097-04-30T20:52:36Z", "ms": 4018193555500.2974 }, "end": { "local": "2097-04-30T23:52:36+03:00", "utc": "2097-04-30T20:52:36Z", "ms": 4018193555500.2974 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:14 on Mon 29 Apr to 23:43 on Tue 30 Apr.", "fact": "2097-04-29T18:13:33Z → 2097-04-30T20:42:55Z" }, { "step": "kaala", "text": "Moonrise is at 22:55 on the 29th and 23:53 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 580 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Monday 29 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": "2097-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-04-29", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Monday 29 April. Caturthī runs from 21:14 on Mon 29 Apr to 23:43 on Tue 30 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-04-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-05-08", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6565, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-05-07T08:21:54+03:00", "utc": "2097-05-07T05:21:54Z", "ms": 4018742514443.068 }, "end": { "local": "2097-05-08T07:30:08+03:00", "utc": "2097-05-08T04:30:08Z", "ms": 4018825807516.615 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-07T08:21:54+03:00", "utc": "2097-05-07T05:21:54Z", "ms": 4018742514443.068 }, "end": { "local": "2097-05-08T07:30:08+03:00", "utc": "2097-05-08T04:30:08Z", "ms": 4018825807516.615 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-05-07", "window": { "start": { "local": "2097-05-07T05:41:48+03:00", "utc": "2097-05-07T02:41:48Z", "ms": 4018732907969.7085 }, "end": { "local": "2097-05-07T05:41:48+03:00", "utc": "2097-05-07T02:41:48Z", "ms": 4018732907969.7085 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-05-08", "window": { "start": { "local": "2097-05-08T05:40:43+03:00", "utc": "2097-05-08T02:40:43Z", "ms": 4018819242726.867 }, "end": { "local": "2097-05-08T05:40:43+03:00", "utc": "2097-05-08T02:40:43Z", "ms": 4018819242726.867 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:22 on Tue 7 May to 07:30 on Wed 8 May.", "fact": "2097-05-07T05:21:54Z → 2097-05-08T04:30:08Z" }, { "step": "kaala", "text": "Sunrise is at 05:42 on the 7th and 05:41 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 7th and is on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6565 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Ankara, 2097: Wednesday 8 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": "2097-05-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-08", "confidence": "determinate" } ], "quote": "In Ankara, Varūthinī Ekādaśī 2097 falls on Wednesday 8 May. Ekādaśī runs from 08:22 on Tue 7 May to 07:30 on Wed 8 May and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-05-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-05-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23357, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-05-09T05:54:14+03:00", "utc": "2097-05-09T02:54:14Z", "ms": 4018906453802.238 }, "end": { "local": "2097-05-10T03:39:20+03:00", "utc": "2097-05-10T00:39:20Z", "ms": 4018984759732.7607 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-09T05:54:14+03:00", "utc": "2097-05-09T02:54:14Z", "ms": 4018906453802.238 }, "end": { "local": "2097-05-10T03:39:20+03:00", "utc": "2097-05-10T00:39:20Z", "ms": 4018984759732.7607 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-05-08", "window": { "start": { "local": "2097-05-08T19:50:50+03:00", "utc": "2097-05-08T16:50:50Z", "ms": 4018870249999.443 }, "end": { "local": "2097-05-08T21:09:21+03:00", "utc": "2097-05-08T18:09:21Z", "ms": 4018874960520.7227 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "2097-05-09", "window": { "start": { "local": "2097-05-09T19:51:49+03:00", "utc": "2097-05-09T16:51:49Z", "ms": 4018956708877.18 }, "end": { "local": "2097-05-09T21:10:03+03:00", "utc": "2097-05-09T18:10:03Z", "ms": 4018961403232.7393 } }, "covered_min": 78, "window_min": 78, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:54 on Thu 9 May to 03:39 on Fri 10 May.", "fact": "2097-05-09T02:54:14Z → 2097-05-10T00:39:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:51–21:09 on the 8th, 19:52–21:10 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 79 minutes on the 8th and 78 of 78 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23357 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Thursday 9 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": "2097-05-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-09", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Thursday 9 May. Trayodaśī runs from 05:54 on Thu 9 May to 03:39 on Fri 10 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-05-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-05-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1003, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-05-10T03:39:20+03:00", "utc": "2097-05-10T00:39:20Z", "ms": 4018984759732.7607 }, "end": { "local": "2097-05-11T00:52:28+03:00", "utc": "2097-05-10T21:52:28Z", "ms": 4019061148118.7915 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-10T03:39:20+03:00", "utc": "2097-05-10T00:39:20Z", "ms": 4018984759732.7607 }, "end": { "local": "2097-05-11T00:52:28+03:00", "utc": "2097-05-10T21:52:28Z", "ms": 4019061148118.7915 } }, "kaala": "nishita", "days": [ { "local_date": "2097-05-09", "window": { "start": { "local": "2097-05-10T00:21:13+03:00", "utc": "2097-05-09T21:21:13Z", "ms": 4018972872710.5264 }, "end": { "local": "2097-05-10T01:09:13+03:00", "utc": "2097-05-09T22:09:13Z", "ms": 4018975752710.5264 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-05-10", "window": { "start": { "local": "2097-05-11T00:21:12+03:00", "utc": "2097-05-10T21:21:12Z", "ms": 4019059271552.882 }, "end": { "local": "2097-05-11T01:09:12+03:00", "utc": "2097-05-10T22:09:12Z", "ms": 4019062151552.882 } }, "covered_min": 31, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:39 on Fri 10 May to 00:52 on Sat 11 May.", "fact": "2097-05-10T00:39:20Z → 2097-05-10T21:52:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:21–01:09 on the 9th, 00:21–01:09 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 9th and 31 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1003 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Friday 10 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": "2097-05-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-10", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Friday 10 May. Caturdaśī runs from 03:39 on Fri 10 May to 00:52 on Sat 11 May and covers 31 of 48 minutes of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-05-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18553, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2097-05-13T14:46:28+03:00", "utc": "2097-05-13T11:46:28Z", "ms": 4019283987696.31 }, "end": { "local": "2097-05-14T11:20:02+03:00", "utc": "2097-05-14T08:20:02Z", "ms": 4019358002336.5093 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-13T14:46:28+03:00", "utc": "2097-05-13T11:46:28Z", "ms": 4019283987696.31 }, "end": { "local": "2097-05-14T11:20:02+03:00", "utc": "2097-05-14T08:20:02Z", "ms": 4019358002336.5093 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-05-13", "window": { "start": { "local": "2097-05-13T19:55:41+03:00", "utc": "2097-05-13T16:55:41Z", "ms": 4019302540973.732 }, "end": { "local": "2097-05-13T21:12:53+03:00", "utc": "2097-05-13T18:12:53Z", "ms": 4019307173125.6025 } }, "covered_min": 77, "window_min": 77, "qualifies": true }, { "local_date": "2097-05-14", "window": { "start": { "local": "2097-05-14T19:56:38+03:00", "utc": "2097-05-14T16:56:38Z", "ms": 4019388997960.8203 }, "end": { "local": "2097-05-14T21:13:35+03:00", "utc": "2097-05-14T18:13:35Z", "ms": 4019393615216.79 } }, "covered_min": 0, "window_min": 77, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 14:46 on Mon 13 May to 11:20 on Tue 14 May.", "fact": "2097-05-13T11:46:28Z → 2097-05-14T08:20:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:56–21:13 on the 13th, 19:57–21:14 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 77 of 77 minutes on the 13th and 0 of 77 on the 14th.", "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 18553 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Ankara, 2097: Monday 13 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-13", "confidence": "determinate" } ], "quote": "In Ankara, Paraśurāma Jayantī 2097 falls on Monday 13 May. Tṛtīyā runs from 14:46 on Mon 13 May to 11:20 on Tue 14 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3482, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2097-05-13T14:46:28+03:00", "utc": "2097-05-13T11:46:28Z", "ms": 4019283987696.31 }, "end": { "local": "2097-05-14T11:20:02+03:00", "utc": "2097-05-14T08:20:02Z", "ms": 4019358002336.5093 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-13T14:46:28+03:00", "utc": "2097-05-13T11:46:28Z", "ms": 4019283987696.31 }, "end": { "local": "2097-05-14T11:20:02+03:00", "utc": "2097-05-14T08:20:02Z", "ms": 4019358002336.5093 } }, "kaala": "purvahna", "days": [ { "local_date": "2097-05-13", "window": { "start": { "local": "2097-05-13T05:35:38+03:00", "utc": "2097-05-13T02:35:38Z", "ms": 4019250938418.502 }, "end": { "local": "2097-05-13T10:22:19+03:00", "utc": "2097-05-13T07:22:19Z", "ms": 4019268139270.245 } }, "covered_min": 0, "window_min": 287, "qualifies": false }, { "local_date": "2097-05-14", "window": { "start": { "local": "2097-05-14T05:34:42+03:00", "utc": "2097-05-14T02:34:42Z", "ms": 4019337282112.761 }, "end": { "local": "2097-05-14T10:22:01+03:00", "utc": "2097-05-14T07:22:01Z", "ms": 4019354520728.781 } }, "covered_min": 287, "window_min": 287, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 14:46 on Mon 13 May to 11:20 on Tue 14 May.", "fact": "2097-05-13T11:46:28Z → 2097-05-14T08:20:02Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:36–10:22 on the 13th, 05:35–10:22 on the 14th.", "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 287 minutes on the 13th and 287 of 287 on the 14th.", "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 3482 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Ankara, 2097: Tuesday 14 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-14", "confidence": "determinate" } ], "quote": "In Ankara, Akṣaya Tṛtīyā 2097 falls on Tuesday 14 May. Tṛtīyā runs from 14:46 on Mon 13 May to 11:20 on Tue 14 May and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-05-14", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3698, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-05-14T11:20:02+03:00", "utc": "2097-05-14T08:20:02Z", "ms": 4019358002336.5093 }, "end": { "local": "2097-05-15T08:06:27+03:00", "utc": "2097-05-15T05:06:27Z", "ms": 4019432786590.1104 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-14T11:20:02+03:00", "utc": "2097-05-14T08:20:02Z", "ms": 4019358002336.5093 }, "end": { "local": "2097-05-15T08:06:27+03:00", "utc": "2097-05-15T05:06:27Z", "ms": 4019432786590.1104 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-05-14", "window": { "start": { "local": "2097-05-14T12:21:40+03:00", "utc": "2097-05-14T09:21:40Z", "ms": 4019361700036.791 }, "end": { "local": "2097-05-14T13:09:40+03:00", "utc": "2097-05-14T10:09:40Z", "ms": 4019364580036.791 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-05-15", "window": { "start": { "local": "2097-05-15T12:21:41+03:00", "utc": "2097-05-15T09:21:41Z", "ms": 4019448100917.9424 }, "end": { "local": "2097-05-15T13:09:41+03:00", "utc": "2097-05-15T10:09:41Z", "ms": 4019450980917.9424 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:20 on Tue 14 May to 08:06 on Wed 15 May.", "fact": "2097-05-14T08:20:02Z → 2097-05-15T05:06:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 14th, 12:22–13:10 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3698 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Tuesday 14 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": "2097-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-14", "confidence": "boundary" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Tuesday 14 May. Caturthī runs from 11:20 on Tue 14 May to 08:06 on Wed 15 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-05-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15314, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2097-05-15T08:06:27+03:00", "utc": "2097-05-15T05:06:27Z", "ms": 4019432786590.1104 }, "end": { "local": "2097-05-16T05:13:47+03:00", "utc": "2097-05-16T02:13:47Z", "ms": 4019508827208.449 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-15T08:06:27+03:00", "utc": "2097-05-15T05:06:27Z", "ms": 4019432786590.1104 }, "end": { "local": "2097-05-16T05:13:47+03:00", "utc": "2097-05-16T02:13:47Z", "ms": 4019508827208.449 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-05-15", "window": { "start": { "local": "2097-05-15T12:21:41+03:00", "utc": "2097-05-15T09:21:41Z", "ms": 4019448100917.9424 }, "end": { "local": "2097-05-15T13:09:41+03:00", "utc": "2097-05-15T10:09:41Z", "ms": 4019450980917.9424 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-05-16", "window": { "start": { "local": "2097-05-16T12:21:42+03:00", "utc": "2097-05-16T09:21:42Z", "ms": 4019534502331.955 }, "end": { "local": "2097-05-16T13:09:42+03:00", "utc": "2097-05-16T10:09:42Z", "ms": 4019537382331.955 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 08:06 on Wed 15 May to 05:14 on Thu 16 May.", "fact": "2097-05-15T05:06:27Z → 2097-05-16T02:13:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 15th, 12:22–13:10 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15314 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Ankara, 2097: Wednesday 15 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-15", "confidence": "determinate" } ], "quote": "In Ankara, Śaṅkara Jayantī 2097 falls on Wednesday 15 May. Pañcamī runs from 08:06 on Wed 15 May to 05:14 on Thu 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34361, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2097-05-17T02:49:04+03:00", "utc": "2097-05-16T23:49:04Z", "ms": 4019586543602.8076 }, "end": { "local": "2097-05-18T00:57:44+03:00", "utc": "2097-05-17T21:57:44Z", "ms": 4019666263964.698 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-17T02:49:04+03:00", "utc": "2097-05-16T23:49:04Z", "ms": 4019586543602.8076 }, "end": { "local": "2097-05-18T00:57:44+03:00", "utc": "2097-05-17T21:57:44Z", "ms": 4019666263964.698 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-05-17", "window": { "start": { "local": "2097-05-17T12:21:44+03:00", "utc": "2097-05-17T09:21:44Z", "ms": 4019620904271.8906 }, "end": { "local": "2097-05-17T13:09:44+03:00", "utc": "2097-05-17T10:09:44Z", "ms": 4019623784271.8906 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-05-18", "window": { "start": { "local": "2097-05-18T12:21:47+03:00", "utc": "2097-05-18T09:21:47Z", "ms": 4019707306731.4585 }, "end": { "local": "2097-05-18T13:09:47+03:00", "utc": "2097-05-18T10:09:47Z", "ms": 4019710186731.4585 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:49 on Fri 17 May to 00:58 on Sat 18 May.", "fact": "2097-05-16T23:49:04Z → 2097-05-17T21:57:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 17th, 12:22–13:10 on the 18th.", "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 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 34361 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Ankara, 2097: Friday 17 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-17", "confidence": "determinate" } ], "quote": "In Ankara, Gaṅgotpatti (Ganga Saptami) 2097 falls on Friday 17 May. Saptamī runs from 02:49 on Fri 17 May to 00:58 on Sat 18 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-05-21", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20498, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-05-20T23:09:25+03:00", "utc": "2097-05-20T20:09:25Z", "ms": 4019918964945.1885 }, "end": { "local": "2097-05-21T23:46:33+03:00", "utc": "2097-05-21T20:46:33Z", "ms": 4020007592782.153 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-20T23:09:25+03:00", "utc": "2097-05-20T20:09:25Z", "ms": 4019918964945.1885 }, "end": { "local": "2097-05-21T23:46:33+03:00", "utc": "2097-05-21T20:46:33Z", "ms": 4020007592782.153 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-05-21", "window": { "start": { "local": "2097-05-21T05:28:53+03:00", "utc": "2097-05-21T02:28:53Z", "ms": 4019941733380.0684 }, "end": { "local": "2097-05-21T05:28:53+03:00", "utc": "2097-05-21T02:28:53Z", "ms": 4019941733380.0684 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-05-22", "window": { "start": { "local": "2097-05-22T05:28:10+03:00", "utc": "2097-05-22T02:28:10Z", "ms": 4020028090334.579 }, "end": { "local": "2097-05-22T05:28:10+03:00", "utc": "2097-05-22T02:28:10Z", "ms": 4020028090334.579 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:09 on Mon 20 May to 23:47 on Tue 21 May.", "fact": "2097-05-20T20:09:25Z → 2097-05-21T20:46:33Z" }, { "step": "kaala", "text": "Sunrise is at 05:29 on the 21st and 05:28 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 21st and is not on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20498 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Ankara, 2097: Tuesday 21 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": "2097-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-21", "confidence": "determinate" } ], "quote": "In Ankara, Mohinī Ekādaśī 2097 falls on Tuesday 21 May. Ekādaśī runs from 23:09 on Mon 20 May to 23:47 on Tue 21 May and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-05-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38196, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2097-05-21T23:46:33+03:00", "utc": "2097-05-21T20:46:33Z", "ms": 4020007592782.153 }, "end": { "local": "2097-05-23T00:54:55+03:00", "utc": "2097-05-22T21:54:55Z", "ms": 4020098095126.564 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-21T23:46:33+03:00", "utc": "2097-05-21T20:46:33Z", "ms": 4020007592782.153 }, "end": { "local": "2097-05-23T00:54:55+03:00", "utc": "2097-05-22T21:54:55Z", "ms": 4020098095126.564 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-05-21", "window": { "start": { "local": "2097-05-21T12:21:57+03:00", "utc": "2097-05-21T09:21:57Z", "ms": 4019966517169.8994 }, "end": { "local": "2097-05-21T13:09:57+03:00", "utc": "2097-05-21T10:09:57Z", "ms": 4019969397169.8994 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-05-22", "window": { "start": { "local": "2097-05-22T12:22:02+03:00", "utc": "2097-05-22T09:22:02Z", "ms": 4020052921649.839 }, "end": { "local": "2097-05-22T13:10:02+03:00", "utc": "2097-05-22T10:10:02Z", "ms": 4020055801649.839 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 23:47 on Tue 21 May to 00:55 on Thu 23 May.", "fact": "2097-05-21T20:46:33Z → 2097-05-22T21:54:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 21st, 12:22–13:10 on the 22nd.", "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 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 38196 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Ankara, 2097: Wednesday 22 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": "2097-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-22", "confidence": "determinate" } ], "quote": "In Ankara, Paraśurāma Dvādaśī 2097 falls on Wednesday 22 May. Dvādaśī runs from 23:47 on Tue 21 May to 00:55 on Thu 23 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38196, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2097-05-21T23:46:33+03:00", "utc": "2097-05-21T20:46:33Z", "ms": 4020007592782.153 }, "end": { "local": "2097-05-23T00:54:55+03:00", "utc": "2097-05-22T21:54:55Z", "ms": 4020098095126.564 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-21T23:46:33+03:00", "utc": "2097-05-21T20:46:33Z", "ms": 4020007592782.153 }, "end": { "local": "2097-05-23T00:54:55+03:00", "utc": "2097-05-22T21:54:55Z", "ms": 4020098095126.564 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-05-21", "window": { "start": { "local": "2097-05-21T12:21:57+03:00", "utc": "2097-05-21T09:21:57Z", "ms": 4019966517169.8994 }, "end": { "local": "2097-05-21T13:09:57+03:00", "utc": "2097-05-21T10:09:57Z", "ms": 4019969397169.8994 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-05-22", "window": { "start": { "local": "2097-05-22T12:22:02+03:00", "utc": "2097-05-22T09:22:02Z", "ms": 4020052921649.839 }, "end": { "local": "2097-05-22T13:10:02+03:00", "utc": "2097-05-22T10:10:02Z", "ms": 4020055801649.839 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 23:47 on Tue 21 May to 00:55 on Thu 23 May.", "fact": "2097-05-21T20:46:33Z → 2097-05-22T21:54:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 21st, 12:22–13:10 on the 22nd.", "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 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 38196 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Ankara, 2097: Wednesday 22 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": "2097-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-22", "confidence": "determinate" } ], "quote": "In Ankara, Rukmiṇī Dvādaśī 2097 falls on Wednesday 22 May. Dvādaśī runs from 23:47 on Tue 21 May to 00:55 on Thu 23 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pradosha-vrata?on=2097-05-23", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12953, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-05-23T00:54:55+03:00", "utc": "2097-05-22T21:54:55Z", "ms": 4020098095126.564 }, "end": { "local": "2097-05-24T02:29:42+03:00", "utc": "2097-05-23T23:29:42Z", "ms": 4020190182231.69 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-23T00:54:55+03:00", "utc": "2097-05-22T21:54:55Z", "ms": 4020098095126.564 }, "end": { "local": "2097-05-24T02:29:42+03:00", "utc": "2097-05-23T23:29:42Z", "ms": 4020190182231.69 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-05-22", "window": { "start": { "local": "2097-05-22T20:03:53+03:00", "utc": "2097-05-22T17:03:53Z", "ms": 4020080632965.098 }, "end": { "local": "2097-05-22T21:19:02+03:00", "utc": "2097-05-22T18:19:02Z", "ms": 4020085141776.5522 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "2097-05-23", "window": { "start": { "local": "2097-05-23T20:04:44+03:00", "utc": "2097-05-23T17:04:44Z", "ms": 4020167084188.115 }, "end": { "local": "2097-05-23T21:19:41+03:00", "utc": "2097-05-23T18:19:41Z", "ms": 4020171580903.093 } }, "covered_min": 75, "window_min": 75, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:55 on Thu 23 May to 02:30 on Fri 24 May.", "fact": "2097-05-22T21:54:55Z → 2097-05-23T23:29:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:04–21:19 on the 22nd, 20:05–21:20 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 75 minutes on the 22nd and 75 of 75 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12953 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Thursday 23 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": "2097-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-23", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Thursday 23 May. Trayodaśī runs from 00:55 on Thu 23 May to 02:30 on Fri 24 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-05-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18601, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-05-24T02:29:42+03:00", "utc": "2097-05-23T23:29:42Z", "ms": 4020190182231.69 }, "end": { "local": "2097-05-25T04:25:44+03:00", "utc": "2097-05-25T01:25:44Z", "ms": 4020283543733.475 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-24T02:29:42+03:00", "utc": "2097-05-23T23:29:42Z", "ms": 4020190182231.69 }, "end": { "local": "2097-05-25T04:25:44+03:00", "utc": "2097-05-25T01:25:44Z", "ms": 4020283543733.475 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-05-23", "window": { "start": { "local": "2097-05-23T20:04:44+03:00", "utc": "2097-05-23T17:04:44Z", "ms": 4020167084188.115 }, "end": { "local": "2097-05-23T21:19:41+03:00", "utc": "2097-05-23T18:19:41Z", "ms": 4020171580903.093 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "2097-05-24", "window": { "start": { "local": "2097-05-24T20:05:35+03:00", "utc": "2097-05-24T17:05:35Z", "ms": 4020253534593.657 }, "end": { "local": "2097-05-24T21:20:20+03:00", "utc": "2097-05-24T18:20:20Z", "ms": 4020258019561.5947 } }, "covered_min": 75, "window_min": 75, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:30 on Fri 24 May to 04:26 on Sat 25 May.", "fact": "2097-05-23T23:29:42Z → 2097-05-25T01:25:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:05–21:20 on the 23rd, 20:06–21:20 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 75 minutes on the 23rd and 75 of 75 on the 24th.", "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 18601 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Ankara, 2097: Friday 24 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": "2097-05-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-24", "confidence": "determinate" } ], "quote": "In Ankara, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2097 falls on Friday 24 May. Caturdaśī runs from 02:30 on Fri 24 May to 04:26 on Sat 25 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20679, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-05-25T04:25:44+03:00", "utc": "2097-05-25T01:25:44Z", "ms": 4020283543733.475 }, "end": { "local": "2097-05-26T06:37:45+03:00", "utc": "2097-05-26T03:37:45Z", "ms": 4020377865457.797 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-25T04:25:44+03:00", "utc": "2097-05-25T01:25:44Z", "ms": 4020283543733.475 }, "end": { "local": "2097-05-26T06:37:45+03:00", "utc": "2097-05-26T03:37:45Z", "ms": 4020377865457.797 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-05-25", "window": { "start": { "local": "2097-05-25T12:22:18+03:00", "utc": "2097-05-25T09:22:18Z", "ms": 4020312137999.6665 }, "end": { "local": "2097-05-25T13:10:18+03:00", "utc": "2097-05-25T10:10:18Z", "ms": 4020315017999.6665 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-05-26", "window": { "start": { "local": "2097-05-26T12:22:24+03:00", "utc": "2097-05-26T09:22:24Z", "ms": 4020398544394.038 }, "end": { "local": "2097-05-26T13:10:24+03:00", "utc": "2097-05-26T10:10:24Z", "ms": 4020401424394.038 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:26 on Sat 25 May to 06:38 on Sun 26 May.", "fact": "2097-05-25T01:25:44Z → 2097-05-26T03:37:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 25th, 12:22–13:10 on the 26th.", "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 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: unstated → only-day · margin 20679 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Ankara, 2097: Saturday 25 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": "2097-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-25", "confidence": "determinate" } ], "quote": "In Ankara, Buddha Pūrṇimā 2097 falls on Saturday 25 May. Pūrṇimā runs from 04:26 on Sat 25 May to 06:38 on Sun 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20679, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-05-25T04:25:44+03:00", "utc": "2097-05-25T01:25:44Z", "ms": 4020283543733.475 }, "end": { "local": "2097-05-26T06:37:45+03:00", "utc": "2097-05-26T03:37:45Z", "ms": 4020377865457.797 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-25T04:25:44+03:00", "utc": "2097-05-25T01:25:44Z", "ms": 4020283543733.475 }, "end": { "local": "2097-05-26T06:37:45+03:00", "utc": "2097-05-26T03:37:45Z", "ms": 4020377865457.797 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-05-25", "window": { "start": { "local": "2097-05-25T12:22:18+03:00", "utc": "2097-05-25T09:22:18Z", "ms": 4020312137999.6665 }, "end": { "local": "2097-05-25T13:10:18+03:00", "utc": "2097-05-25T10:10:18Z", "ms": 4020315017999.6665 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-05-26", "window": { "start": { "local": "2097-05-26T12:22:24+03:00", "utc": "2097-05-26T09:22:24Z", "ms": 4020398544394.038 }, "end": { "local": "2097-05-26T13:10:24+03:00", "utc": "2097-05-26T10:10:24Z", "ms": 4020401424394.038 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:26 on Sat 25 May to 06:38 on Sun 26 May.", "fact": "2097-05-25T01:25:44Z → 2097-05-26T03:37:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 25th, 12:22–13:10 on the 26th.", "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 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 20679 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Ankara, 2097: Saturday 25 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": "2097-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-25", "confidence": "determinate" } ], "quote": "In Ankara, Sampat Gaurī Vrata 2097 falls on Saturday 25 May. Pūrṇimā runs from 04:26 on Sat 25 May to 06:38 on Sun 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-05-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-05-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28428, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-05-29T13:54:54+03:00", "utc": "2097-05-29T10:54:54Z", "ms": 4020663293588.945 }, "end": { "local": "2097-05-30T16:13:06+03:00", "utc": "2097-05-30T13:13:06Z", "ms": 4020757986154.8027 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-05-29T13:54:54+03:00", "utc": "2097-05-29T10:54:54Z", "ms": 4020663293588.945 }, "end": { "local": "2097-05-30T16:13:06+03:00", "utc": "2097-05-30T13:13:06Z", "ms": 4020757986154.8027 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-05-29", "window": { "start": { "local": "2097-05-29T23:26:35+03:00", "utc": "2097-05-29T20:26:35Z", "ms": 4020697595349.8354 }, "end": { "local": "2097-05-29T23:26:35+03:00", "utc": "2097-05-29T20:26:35Z", "ms": 4020697595349.8354 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-05-30", "window": { "start": { "local": "2097-05-31T00:06:54+03:00", "utc": "2097-05-30T21:06:54Z", "ms": 4020786413827.7114 }, "end": { "local": "2097-05-31T00:06:54+03:00", "utc": "2097-05-30T21:06:54Z", "ms": 4020786413827.7114 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:55 on Wed 29 May to 16:13 on Thu 30 May.", "fact": "2097-05-29T10:54:54Z → 2097-05-30T13:13:06Z" }, { "step": "kaala", "text": "Moonrise is at 23:27 on the 29th and 00:07 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28428 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Wednesday 29 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": "2097-05-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-05-29", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Wednesday 29 May. Caturthī runs from 13:55 on Wed 29 May to 16:13 on Thu 30 May and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-05-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-06-06", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34053, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-06-05T19:53:33+03:00", "utc": "2097-06-05T16:53:33Z", "ms": 4021289613386.311 }, "end": { "local": "2097-06-06T18:03:29+03:00", "utc": "2097-06-06T15:03:29Z", "ms": 4021369408557.405 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-05T19:53:33+03:00", "utc": "2097-06-05T16:53:33Z", "ms": 4021289613386.311 }, "end": { "local": "2097-06-06T18:03:29+03:00", "utc": "2097-06-06T15:03:29Z", "ms": 4021369408557.405 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-06-06", "window": { "start": { "local": "2097-06-06T05:21:06+03:00", "utc": "2097-06-06T02:21:06Z", "ms": 4021323666130.6636 }, "end": { "local": "2097-06-06T05:21:06+03:00", "utc": "2097-06-06T02:21:06Z", "ms": 4021323666130.6636 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-06-07", "window": { "start": { "local": "2097-06-07T05:20:53+03:00", "utc": "2097-06-07T02:20:53Z", "ms": 4021410053219.0034 }, "end": { "local": "2097-06-07T05:20:53+03:00", "utc": "2097-06-07T02:20:53Z", "ms": 4021410053219.0034 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:54 on Wed 5 Jun to 18:03 on Thu 6 Jun.", "fact": "2097-06-05T16:53:33Z → 2097-06-06T15:03:29Z" }, { "step": "kaala", "text": "Sunrise is at 05:21 on the 6th and 05:21 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 6th and is not on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34053 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Ankara, 2097: Thursday 6 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": "2097-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-06", "confidence": "determinate" } ], "quote": "In Ankara, Aparā Ekādaśī 2097 falls on Thursday 6 June. Ekādaśī runs from 19:54 on Wed 5 Jun to 18:03 on Thu 6 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-06-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-06-07", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16934, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-06-07T15:33:20+03:00", "utc": "2097-06-07T12:33:20Z", "ms": 4021446799852.028 }, "end": { "local": "2097-06-08T12:29:36+03:00", "utc": "2097-06-08T09:29:36Z", "ms": 4021522176244.2056 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-07T15:33:20+03:00", "utc": "2097-06-07T12:33:20Z", "ms": 4021446799852.028 }, "end": { "local": "2097-06-08T12:29:36+03:00", "utc": "2097-06-08T09:29:36Z", "ms": 4021522176244.2056 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-06-07", "window": { "start": { "local": "2097-06-07T20:15:33+03:00", "utc": "2097-06-07T17:15:33Z", "ms": 4021463733424.3794 }, "end": { "local": "2097-06-07T21:28:15+03:00", "utc": "2097-06-07T18:28:15Z", "ms": 4021468094602.437 } }, "covered_min": 73, "window_min": 73, "qualifies": true }, { "local_date": "2097-06-08", "window": { "start": { "local": "2097-06-08T20:16:07+03:00", "utc": "2097-06-08T17:16:07Z", "ms": 4021550166972.593 }, "end": { "local": "2097-06-08T21:28:42+03:00", "utc": "2097-06-08T18:28:42Z", "ms": 4021554522475.812 } }, "covered_min": 0, "window_min": 73, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:33 on Fri 7 Jun to 12:30 on Sat 8 Jun.", "fact": "2097-06-07T12:33:20Z → 2097-06-08T09:29:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:16–21:28 on the 7th, 20:16–21:29 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 73 of 73 minutes on the 7th and 0 of 73 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 16934 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Friday 7 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": "2097-06-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-07", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Friday 7 June. Trayodaśī runs from 15:33 on Fri 7 Jun to 12:30 on Sat 8 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-06-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-06-08", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28091, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-06-08T12:29:36+03:00", "utc": "2097-06-08T09:29:36Z", "ms": 4021522176244.2056 }, "end": { "local": "2097-06-09T09:00:31+03:00", "utc": "2097-06-09T06:00:31Z", "ms": 4021596031061.5312 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-08T12:29:36+03:00", "utc": "2097-06-08T09:29:36Z", "ms": 4021522176244.2056 }, "end": { "local": "2097-06-09T09:00:31+03:00", "utc": "2097-06-09T06:00:31Z", "ms": 4021596031061.5312 } }, "kaala": "nishita", "days": [ { "local_date": "2097-06-07", "window": { "start": { "local": "2097-06-08T00:24:08+03:00", "utc": "2097-06-07T21:24:08Z", "ms": 4021478647842.0947 }, "end": { "local": "2097-06-08T01:12:08+03:00", "utc": "2097-06-07T22:12:08Z", "ms": 4021481527842.0947 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-06-08", "window": { "start": { "local": "2097-06-09T00:24:20+03:00", "utc": "2097-06-08T21:24:20Z", "ms": 4021565060109.666 }, "end": { "local": "2097-06-09T01:12:20+03:00", "utc": "2097-06-08T22:12:20Z", "ms": 4021567940109.666 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:30 on Sat 8 Jun to 09:01 on Sun 9 Jun.", "fact": "2097-06-08T09:29:36Z → 2097-06-09T06:00:31Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:24–01:12 on the 7th, 00:24–01:12 on the 8th.", "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 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28091 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Saturday 8 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": "2097-06-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-08", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Saturday 8 June. Caturdaśī runs from 12:30 on Sat 8 Jun to 09:01 on Sun 9 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-06-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17704, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2097-06-11T21:38:52+03:00", "utc": "2097-06-11T18:38:52Z", "ms": 4021814332201.2505 }, "end": { "local": "2097-06-12T18:08:16+03:00", "utc": "2097-06-12T15:08:16Z", "ms": 4021888096102.1045 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-11T21:38:52+03:00", "utc": "2097-06-11T18:38:52Z", "ms": 4021814332201.2505 }, "end": { "local": "2097-06-12T18:08:16+03:00", "utc": "2097-06-12T15:08:16Z", "ms": 4021888096102.1045 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-06-11", "window": { "start": { "local": "2097-06-11T12:25:00+03:00", "utc": "2097-06-11T09:25:00Z", "ms": 4021781099870.176 }, "end": { "local": "2097-06-11T13:13:00+03:00", "utc": "2097-06-11T10:13:00Z", "ms": 4021783979870.176 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-06-12", "window": { "start": { "local": "2097-06-12T12:25:12+03:00", "utc": "2097-06-12T09:25:12Z", "ms": 4021867511986.374 }, "end": { "local": "2097-06-12T13:13:12+03:00", "utc": "2097-06-12T10:13:12Z", "ms": 4021870391986.374 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:39 on Tue 11 Jun to 18:08 on Wed 12 Jun.", "fact": "2097-06-11T18:38:52Z → 2097-06-12T15:08:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 11th, 12:25–13:13 on the 12th.", "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 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17704 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Ankara, 2097: Wednesday 12 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-06-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-12", "confidence": "determinate" } ], "quote": "In Ankara, Rambhā Tṛtīyā 2097 falls on Wednesday 12 June. Tṛtīyā runs from 21:39 on Tue 11 Jun to 18:08 on Wed 12 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-06-13", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6573, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-06-12T18:08:16+03:00", "utc": "2097-06-12T15:08:16Z", "ms": 4021888096102.1045 }, "end": { "local": "2097-06-13T15:02:57+03:00", "utc": "2097-06-13T12:02:57Z", "ms": 4021963376829.9077 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-12T18:08:16+03:00", "utc": "2097-06-12T15:08:16Z", "ms": 4021888096102.1045 }, "end": { "local": "2097-06-13T15:02:57+03:00", "utc": "2097-06-13T12:02:57Z", "ms": 4021963376829.9077 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-06-12", "window": { "start": { "local": "2097-06-12T12:25:12+03:00", "utc": "2097-06-12T09:25:12Z", "ms": 4021867511986.374 }, "end": { "local": "2097-06-12T13:13:12+03:00", "utc": "2097-06-12T10:13:12Z", "ms": 4021870391986.374 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-06-13", "window": { "start": { "local": "2097-06-13T12:25:24+03:00", "utc": "2097-06-13T09:25:24Z", "ms": 4021953924238.7847 }, "end": { "local": "2097-06-13T13:13:24+03:00", "utc": "2097-06-13T10:13:24Z", "ms": 4021956804238.7847 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:08 on Wed 12 Jun to 15:03 on Thu 13 Jun.", "fact": "2097-06-12T15:08:16Z → 2097-06-13T12:02:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 12th, 12:25–13:13 on the 13th.", "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 12th and 48 of 48 on the 13th.", "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 6573 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Thursday 13 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": "2097-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-13", "confidence": "determinate" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Thursday 13 June. Caturthī runs from 18:08 on Wed 12 Jun to 15:03 on Thu 13 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-06-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 372, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2097-06-14T12:31:48+03:00", "utc": "2097-06-14T09:31:48Z", "ms": 4022040708202.616 }, "end": { "local": "2097-06-15T10:41:59+03:00", "utc": "2097-06-15T07:41:59Z", "ms": 4022120519153.4907 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-14T12:31:48+03:00", "utc": "2097-06-14T09:31:48Z", "ms": 4022040708202.616 }, "end": { "local": "2097-06-15T10:41:59+03:00", "utc": "2097-06-15T07:41:59Z", "ms": 4022120519153.4907 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-06-14", "window": { "start": { "local": "2097-06-14T12:25:37+03:00", "utc": "2097-06-14T09:25:37Z", "ms": 4022040336601.07 }, "end": { "local": "2097-06-14T13:13:37+03:00", "utc": "2097-06-14T10:13:37Z", "ms": 4022043216601.07 } }, "covered_min": 42, "window_min": 48, "qualifies": true }, { "local_date": "2097-06-15", "window": { "start": { "local": "2097-06-15T12:25:49+03:00", "utc": "2097-06-15T09:25:49Z", "ms": 4022126749048.271 }, "end": { "local": "2097-06-15T13:13:49+03:00", "utc": "2097-06-15T10:13:49Z", "ms": 4022129629048.271 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 12:32 on Fri 14 Jun to 10:42 on Sat 15 Jun.", "fact": "2097-06-14T09:31:48Z → 2097-06-15T07:41:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 14th, 12:26–13:14 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 42 of 48 minutes on the 14th and 0 of 48 on the 15th.", "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 372 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Ankara, 2097: Friday 14 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-14", "confidence": "determinate" } ], "quote": "In Ankara, Araṇya Gaurī Vrata 2097 falls on Friday 14 June. Ṣaṣṭhī runs from 12:32 on Fri 14 Jun to 10:42 on Sat 15 Jun and covers 42 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 372, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2097-06-14T12:31:48+03:00", "utc": "2097-06-14T09:31:48Z", "ms": 4022040708202.616 }, "end": { "local": "2097-06-15T10:41:59+03:00", "utc": "2097-06-15T07:41:59Z", "ms": 4022120519153.4907 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-14T12:31:48+03:00", "utc": "2097-06-14T09:31:48Z", "ms": 4022040708202.616 }, "end": { "local": "2097-06-15T10:41:59+03:00", "utc": "2097-06-15T07:41:59Z", "ms": 4022120519153.4907 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-06-14", "window": { "start": { "local": "2097-06-14T12:25:37+03:00", "utc": "2097-06-14T09:25:37Z", "ms": 4022040336601.07 }, "end": { "local": "2097-06-14T13:13:37+03:00", "utc": "2097-06-14T10:13:37Z", "ms": 4022043216601.07 } }, "covered_min": 42, "window_min": 48, "qualifies": true }, { "local_date": "2097-06-15", "window": { "start": { "local": "2097-06-15T12:25:49+03:00", "utc": "2097-06-15T09:25:49Z", "ms": 4022126749048.271 }, "end": { "local": "2097-06-15T13:13:49+03:00", "utc": "2097-06-15T10:13:49Z", "ms": 4022129629048.271 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 12:32 on Fri 14 Jun to 10:42 on Sat 15 Jun.", "fact": "2097-06-14T09:31:48Z → 2097-06-15T07:41:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 14th, 12:26–13:14 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 42 of 48 minutes on the 14th and 0 of 48 on the 15th.", "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 372 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Ankara, 2097: Friday 14 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-14", "confidence": "determinate" } ], "quote": "In Ankara, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2097 falls on Friday 14 June. Ṣaṣṭhī runs from 12:32 on Fri 14 Jun to 10:42 on Sat 15 Jun and covers 42 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-06-20", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20416, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-06-19T11:01:03+03:00", "utc": "2097-06-19T08:01:03Z", "ms": 4022467263355.6895 }, "end": { "local": "2097-06-20T12:43:36+03:00", "utc": "2097-06-20T09:43:36Z", "ms": 4022559815818.234 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-19T11:01:03+03:00", "utc": "2097-06-19T08:01:03Z", "ms": 4022467263355.6895 }, "end": { "local": "2097-06-20T12:43:36+03:00", "utc": "2097-06-20T09:43:36Z", "ms": 4022559815818.234 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-06-19", "window": { "start": { "local": "2097-06-19T05:20:47+03:00", "utc": "2097-06-19T02:20:47Z", "ms": 4022446847340.1772 }, "end": { "local": "2097-06-19T05:20:47+03:00", "utc": "2097-06-19T02:20:47Z", "ms": 4022446847340.1772 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-06-20", "window": { "start": { "local": "2097-06-20T05:20:59+03:00", "utc": "2097-06-20T02:20:59Z", "ms": 4022533258819.1216 }, "end": { "local": "2097-06-20T05:20:59+03:00", "utc": "2097-06-20T02:20:59Z", "ms": 4022533258819.1216 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:01 on Wed 19 Jun to 12:44 on Thu 20 Jun.", "fact": "2097-06-19T08:01:03Z → 2097-06-20T09:43:36Z" }, { "step": "kaala", "text": "Sunrise is at 05:21 on the 19th and 05:21 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 19th and is on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20416 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Ankara, 2097: Thursday 20 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": "2097-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-20", "confidence": "determinate" } ], "quote": "In Ankara, Nirjalā Ekādaśī 2097 falls on Thursday 20 June. Ekādaśī runs from 11:01 on Wed 19 Jun to 12:44 on Thu 20 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-06-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1004, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2097-06-20T12:43:36+03:00", "utc": "2097-06-20T09:43:36Z", "ms": 4022559815818.234 }, "end": { "local": "2097-06-21T14:49:51+03:00", "utc": "2097-06-21T11:49:51Z", "ms": 4022653790908.1465 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-20T12:43:36+03:00", "utc": "2097-06-20T09:43:36Z", "ms": 4022559815818.234 }, "end": { "local": "2097-06-21T14:49:51+03:00", "utc": "2097-06-21T11:49:51Z", "ms": 4022653790908.1465 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-06-20", "window": { "start": { "local": "2097-06-20T12:26:52+03:00", "utc": "2097-06-20T09:26:52Z", "ms": 4022558811758.5137 }, "end": { "local": "2097-06-20T13:14:52+03:00", "utc": "2097-06-20T10:14:52Z", "ms": 4022561691758.5137 } }, "covered_min": 31, "window_min": 48, "qualifies": true }, { "local_date": "2097-06-21", "window": { "start": { "local": "2097-06-21T12:27:04+03:00", "utc": "2097-06-21T09:27:04Z", "ms": 4022645224244.962 }, "end": { "local": "2097-06-21T13:15:04+03:00", "utc": "2097-06-21T10:15:04Z", "ms": 4022648104244.962 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 12:44 on Thu 20 Jun to 14:50 on Fri 21 Jun.", "fact": "2097-06-20T09:43:36Z → 2097-06-21T11:49:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 20th, 12:27–13:15 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 31 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1004 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Ankara, 2097: Thursday 20 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": "2097-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-20", "confidence": "determinate" } ], "quote": "In Ankara, Śrī Rāma Dvādaśī 2097 falls on Thursday 20 June. Dvādaśī runs from 12:44 on Thu 20 Jun to 14:50 on Fri 21 Jun and covers 31 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pradosha-vrata?on=2097-06-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11421, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-06-21T14:49:51+03:00", "utc": "2097-06-21T11:49:51Z", "ms": 4022653790908.1465 }, "end": { "local": "2097-06-22T17:10:45+03:00", "utc": "2097-06-22T14:10:45Z", "ms": 4022748645072.3467 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-21T14:49:51+03:00", "utc": "2097-06-21T11:49:51Z", "ms": 4022653790908.1465 }, "end": { "local": "2097-06-22T17:10:45+03:00", "utc": "2097-06-22T14:10:45Z", "ms": 4022748645072.3467 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-06-21", "window": { "start": { "local": "2097-06-21T20:20:56+03:00", "utc": "2097-06-21T17:20:56Z", "ms": 4022673656438.043 }, "end": { "local": "2097-06-21T21:33:01+03:00", "utc": "2097-06-21T18:33:01Z", "ms": 4022677980515.0347 } }, "covered_min": 72, "window_min": 72, "qualifies": true }, { "local_date": "2097-06-22", "window": { "start": { "local": "2097-06-22T20:21:06+03:00", "utc": "2097-06-22T17:21:06Z", "ms": 4022760066314.002 }, "end": { "local": "2097-06-22T21:33:11+03:00", "utc": "2097-06-22T18:33:11Z", "ms": 4022764391296.9155 } }, "covered_min": 0, "window_min": 72, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:50 on Fri 21 Jun to 17:11 on Sat 22 Jun.", "fact": "2097-06-21T11:49:51Z → 2097-06-22T14:10:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:21–21:33 on the 21st, 20:21–21:33 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 72 of 72 minutes on the 21st and 0 of 72 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 11421 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Friday 21 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": "2097-06-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-21", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Friday 21 June. Trayodaśī runs from 14:50 on Fri 21 Jun to 17:11 on Sat 22 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-06-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1921, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-06-23T19:38:12+03:00", "utc": "2097-06-23T16:38:12Z", "ms": 4022843891904.422 }, "end": { "local": "2097-06-24T22:05:29+03:00", "utc": "2097-06-24T19:05:29Z", "ms": 4022939129189.1333 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-23T19:38:12+03:00", "utc": "2097-06-23T16:38:12Z", "ms": 4022843891904.422 }, "end": { "local": "2097-06-24T22:05:29+03:00", "utc": "2097-06-24T19:05:29Z", "ms": 4022939129189.1333 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-06-23", "window": { "start": { "local": "2097-06-23T20:21:14+03:00", "utc": "2097-06-23T17:21:14Z", "ms": 4022846474309.817 }, "end": { "local": "2097-06-23T21:33:21+03:00", "utc": "2097-06-23T18:33:21Z", "ms": 4022850800673.558 } }, "covered_min": 72, "window_min": 72, "qualifies": true }, { "local_date": "2097-06-24", "window": { "start": { "local": "2097-06-24T20:21:20+03:00", "utc": "2097-06-24T17:21:20Z", "ms": 4022932880411.078 }, "end": { "local": "2097-06-24T21:33:29+03:00", "utc": "2097-06-24T18:33:29Z", "ms": 4022937208628.9917 } }, "covered_min": 72, "window_min": 72, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:38 on Sun 23 Jun to 22:05 on Mon 24 Jun.", "fact": "2097-06-23T16:38:12Z → 2097-06-24T19:05:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:21–21:33 on the 23rd, 20:21–21:33 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 72 of 72 minutes on the 23rd and 72 of 72 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both evenings qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1921 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Ankara, 2097: Sunday 23 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": "2097-06-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-23", "confidence": "boundary" } ], "quote": "In Ankara, Vaṭa Sāvitrī Vrata 2097 falls on Sunday 23 June. Pūrṇimā runs from 19:38 on Sun 23 Jun to 22:05 on Mon 24 Jun and covers all of pradoṣa that evening. It also reaches the next evening for 72 minutes; by the rule the first evening is taken.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-06-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21204, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-06-28T04:35:49+03:00", "utc": "2097-06-28T01:35:49Z", "ms": 4023221748777.8843 }, "end": { "local": "2097-06-29T06:13:33+03:00", "utc": "2097-06-29T03:13:33Z", "ms": 4023314013080.348 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-06-28T04:35:49+03:00", "utc": "2097-06-28T01:35:49Z", "ms": 4023221748777.8843 }, "end": { "local": "2097-06-29T06:13:33+03:00", "utc": "2097-06-29T03:13:33Z", "ms": 4023314013080.348 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-06-27", "window": { "start": { "local": "2097-06-27T22:42:25+03:00", "utc": "2097-06-27T19:42:25Z", "ms": 4023200544540.7964 }, "end": { "local": "2097-06-27T22:42:25+03:00", "utc": "2097-06-27T19:42:25Z", "ms": 4023200544540.7964 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-06-28", "window": { "start": { "local": "2097-06-28T23:12:44+03:00", "utc": "2097-06-28T20:12:44Z", "ms": 4023288764126.811 }, "end": { "local": "2097-06-28T23:12:44+03:00", "utc": "2097-06-28T20:12:44Z", "ms": 4023288764126.811 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:36 on Fri 28 Jun to 06:14 on Sat 29 Jun.", "fact": "2097-06-28T01:35:49Z → 2097-06-29T03:13:33Z" }, { "step": "kaala", "text": "Moonrise is at 22:42 on the 27th and 23:13 on the 28th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 27th and is on the 28th.", "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 21204 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Friday 28 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": "2097-06-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-06-28", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Friday 28 June. Caturthī runs from 04:36 on Fri 28 Jun to 06:14 on Sat 29 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-06-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-07-05", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2813, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-07-05T04:40:14+03:00", "utc": "2097-07-05T01:40:14Z", "ms": 4023826813863.2153 }, "end": { "local": "2097-07-06T02:08:38+03:00", "utc": "2097-07-05T23:08:38Z", "ms": 4023904117583.934 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-05T04:40:14+03:00", "utc": "2097-07-05T01:40:14Z", "ms": 4023826813863.2153 }, "end": { "local": "2097-07-06T02:08:38+03:00", "utc": "2097-07-05T23:08:38Z", "ms": 4023904117583.934 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-07-05", "window": { "start": { "local": "2097-07-05T05:27:07+03:00", "utc": "2097-07-05T02:27:07Z", "ms": 4023829626703.082 }, "end": { "local": "2097-07-05T05:27:07+03:00", "utc": "2097-07-05T02:27:07Z", "ms": 4023829626703.082 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-07-06", "window": { "start": { "local": "2097-07-06T05:27:43+03:00", "utc": "2097-07-06T02:27:43Z", "ms": 4023916062894.0503 }, "end": { "local": "2097-07-06T05:27:43+03:00", "utc": "2097-07-06T02:27:43Z", "ms": 4023916062894.0503 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:40 on Fri 5 Jul to 02:09 on Sat 6 Jul.", "fact": "2097-07-05T01:40:14Z → 2097-07-05T23:08:38Z" }, { "step": "kaala", "text": "Sunrise is at 05:27 on the 5th and 05:28 on the 6th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 5th and is not 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 2813 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Ankara, 2097: Friday 5 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": "2097-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-05", "confidence": "determinate" } ], "quote": "In Ankara, Yoginī Ekādaśī 2097 falls on Friday 5 July. Ekādaśī runs from 04:40 on Fri 5 Jul to 02:09 on Sat 6 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-07-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-07-06", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-06", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2658, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-07-06T23:04:31+03:00", "utc": "2097-07-06T20:04:31Z", "ms": 4023979470625.913 }, "end": { "local": "2097-07-07T19:35:25+03:00", "utc": "2097-07-07T16:35:25Z", "ms": 4024053324810.89 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-06T23:04:31+03:00", "utc": "2097-07-06T20:04:31Z", "ms": 4023979470625.913 }, "end": { "local": "2097-07-07T19:35:25+03:00", "utc": "2097-07-07T16:35:25Z", "ms": 4024053324810.89 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-07-06", "window": { "start": { "local": "2097-07-06T20:20:02+03:00", "utc": "2097-07-06T17:20:02Z", "ms": 4023969602484.3223 }, "end": { "local": "2097-07-06T21:33:09+03:00", "utc": "2097-07-06T18:33:09Z", "ms": 4023973988864.3647 } }, "covered_min": 0, "window_min": 73, "qualifies": false }, { "local_date": "2097-07-07", "window": { "start": { "local": "2097-07-07T20:19:43+03:00", "utc": "2097-07-07T17:19:43Z", "ms": 4024055983255.1685 }, "end": { "local": "2097-07-07T21:32:57+03:00", "utc": "2097-07-07T18:32:57Z", "ms": 4024060377351.668 } }, "covered_min": 0, "window_min": 73, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:05 on Sat 6 Jul to 19:35 on Sun 7 Jul.", "fact": "2097-07-06T20:04:31Z → 2097-07-07T16:35:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:20–21:33 on the 6th, 20:20–21:33 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 73 minutes on the 6th and 0 of 73 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 2658 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Saturday 6 July.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-07-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-06", "confidence": "boundary" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Saturday 6 July. Trayodaśī runs from 23:05 on Sat 6 Jul to 19:35 on Sun 7 Jul, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-07-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-07-07", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17696, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-07-07T19:35:25+03:00", "utc": "2097-07-07T16:35:25Z", "ms": 4024053324810.89 }, "end": { "local": "2097-07-08T15:50:28+03:00", "utc": "2097-07-08T12:50:28Z", "ms": 4024126228075.9165 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-07T19:35:25+03:00", "utc": "2097-07-07T16:35:25Z", "ms": 4024053324810.89 }, "end": { "local": "2097-07-08T15:50:28+03:00", "utc": "2097-07-08T12:50:28Z", "ms": 4024126228075.9165 } }, "kaala": "nishita", "days": [ { "local_date": "2097-07-07", "window": { "start": { "local": "2097-07-08T00:30:21+03:00", "utc": "2097-07-07T21:30:21Z", "ms": 4024071021117.041 }, "end": { "local": "2097-07-08T01:18:21+03:00", "utc": "2097-07-07T22:18:21Z", "ms": 4024073901117.041 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-07-08", "window": { "start": { "local": "2097-07-09T00:30:30+03:00", "utc": "2097-07-08T21:30:30Z", "ms": 4024157430420.9653 }, "end": { "local": "2097-07-09T01:18:30+03:00", "utc": "2097-07-08T22:18:30Z", "ms": 4024160310420.9653 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:35 on Sun 7 Jul to 15:50 on Mon 8 Jul.", "fact": "2097-07-07T16:35:25Z → 2097-07-08T12:50:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:30–01:18 on the 7th, 00:31–01:19 on the 8th.", "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 7th and 0 of 48 on the 8th.", "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 17696 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Sunday 7 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": "2097-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-07", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Sunday 7 July. Caturdaśī runs from 19:35 on Sun 7 Jul to 15:50 on Mon 8 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-07-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15344, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2097-07-10T08:14:43+03:00", "utc": "2097-07-10T05:14:43Z", "ms": 4024271682609.3667 }, "end": { "local": "2097-07-11T04:45:55+03:00", "utc": "2097-07-11T01:45:55Z", "ms": 4024345555370.99 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-10T08:14:43+03:00", "utc": "2097-07-10T05:14:43Z", "ms": 4024271682609.3667 }, "end": { "local": "2097-07-11T04:45:55+03:00", "utc": "2097-07-11T01:45:55Z", "ms": 4024345555370.99 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-07-10", "window": { "start": { "local": "2097-07-10T12:30:27+03:00", "utc": "2097-07-10T09:30:27Z", "ms": 4024287026740.884 }, "end": { "local": "2097-07-10T13:18:27+03:00", "utc": "2097-07-10T10:18:27Z", "ms": 4024289906740.884 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-07-11", "window": { "start": { "local": "2097-07-11T12:30:34+03:00", "utc": "2097-07-11T09:30:34Z", "ms": 4024373434189.8975 }, "end": { "local": "2097-07-11T13:18:34+03:00", "utc": "2097-07-11T10:18:34Z", "ms": 4024376314189.8975 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 08:15 on Wed 10 Jul to 04:46 on Thu 11 Jul.", "fact": "2097-07-10T05:14:43Z → 2097-07-11T01:45:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 10th, 12:31–13:19 on the 11th.", "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 10th and 0 of 48 on the 11th.", "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 15344 s" }, { "step": "ruling", "text": "Rathayātrā, Ankara, 2097: Wednesday 10 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-07-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-10", "confidence": "determinate" } ], "quote": "In Ankara, Rathayātrā 2097 falls on Wednesday 10 July. Dvitīyā runs from 08:15 on Wed 10 Jul to 04:46 on Thu 11 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-07-12", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36062, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-07-12T01:44:20+03:00", "utc": "2097-07-11T22:44:20Z", "ms": 4024421060207.865 }, "end": { "local": "2097-07-12T23:19:43+03:00", "utc": "2097-07-12T20:19:43Z", "ms": 4024498783328.65 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-12T01:44:20+03:00", "utc": "2097-07-11T22:44:20Z", "ms": 4024421060207.865 }, "end": { "local": "2097-07-12T23:19:43+03:00", "utc": "2097-07-12T20:19:43Z", "ms": 4024498783328.65 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-07-11", "window": { "start": { "local": "2097-07-11T12:30:34+03:00", "utc": "2097-07-11T09:30:34Z", "ms": 4024373434189.8975 }, "end": { "local": "2097-07-11T13:18:34+03:00", "utc": "2097-07-11T10:18:34Z", "ms": 4024376314189.8975 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-07-12", "window": { "start": { "local": "2097-07-12T12:30:41+03:00", "utc": "2097-07-12T09:30:41Z", "ms": 4024459841170.4766 }, "end": { "local": "2097-07-12T13:18:41+03:00", "utc": "2097-07-12T10:18:41Z", "ms": 4024462721170.4766 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:44 on Fri 12 Jul to 23:20 on Fri 12 Jul.", "fact": "2097-07-11T22:44:20Z → 2097-07-12T20:19:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 11th, 12:31–13:19 on the 12th.", "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 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36062 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Friday 12 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": "2097-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-12", "confidence": "determinate" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Friday 12 July. Caturthī runs from 01:44 on Fri 12 Jul to 23:20 on Fri 12 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-07-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30074, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2097-07-12T23:19:43+03:00", "utc": "2097-07-12T20:19:43Z", "ms": 4024498783328.65 }, "end": { "local": "2097-07-13T21:40:01+03:00", "utc": "2097-07-13T18:40:01Z", "ms": 4024579201226.908 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-12T23:19:43+03:00", "utc": "2097-07-12T20:19:43Z", "ms": 4024498783328.65 }, "end": { "local": "2097-07-13T21:40:01+03:00", "utc": "2097-07-13T18:40:01Z", "ms": 4024579201226.908 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-07-12", "window": { "start": { "local": "2097-07-12T12:30:41+03:00", "utc": "2097-07-12T09:30:41Z", "ms": 4024459841170.4766 }, "end": { "local": "2097-07-12T13:18:41+03:00", "utc": "2097-07-12T10:18:41Z", "ms": 4024462721170.4766 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-07-13", "window": { "start": { "local": "2097-07-13T12:30:48+03:00", "utc": "2097-07-13T09:30:48Z", "ms": 4024546247664.3584 }, "end": { "local": "2097-07-13T13:18:48+03:00", "utc": "2097-07-13T10:18:48Z", "ms": 4024549127664.3584 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 23:20 on Fri 12 Jul to 21:40 on Sat 13 Jul.", "fact": "2097-07-12T20:19:43Z → 2097-07-13T18:40:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 12th, 12:31–13:19 on the 13th.", "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 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30074 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Ankara, 2097: Saturday 13 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-13", "confidence": "determinate" } ], "quote": "In Ankara, Skanda Pañcamī 2097 falls on Saturday 13 July. Pañcamī runs from 23:20 on Fri 12 Jul to 21:40 on Sat 13 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27090, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2097-07-14T20:50:23+03:00", "utc": "2097-07-14T17:50:23Z", "ms": 4024662623296.1157 }, "end": { "local": "2097-07-15T20:52:16+03:00", "utc": "2097-07-15T17:52:16Z", "ms": 4024749136449.312 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-14T20:50:23+03:00", "utc": "2097-07-14T17:50:23Z", "ms": 4024662623296.1157 }, "end": { "local": "2097-07-15T20:52:16+03:00", "utc": "2097-07-15T17:52:16Z", "ms": 4024749136449.312 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-07-14", "window": { "start": { "local": "2097-07-14T12:30:54+03:00", "utc": "2097-07-14T09:30:54Z", "ms": 4024632653655.463 }, "end": { "local": "2097-07-14T13:18:54+03:00", "utc": "2097-07-14T10:18:54Z", "ms": 4024635533655.463 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-07-15", "window": { "start": { "local": "2097-07-15T12:30:59+03:00", "utc": "2097-07-15T09:30:59Z", "ms": 4024719059129.712 }, "end": { "local": "2097-07-15T13:18:59+03:00", "utc": "2097-07-15T10:18:59Z", "ms": 4024721939129.712 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:50 on Sun 14 Jul to 20:52 on Mon 15 Jul.", "fact": "2097-07-14T17:50:23Z → 2097-07-15T17:52:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 14th, 12:31–13:19 on the 15th.", "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 14th and 48 of 48 on the 15th.", "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 27090 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Ankara, 2097: Monday 15 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-15", "confidence": "determinate" } ], "quote": "In Ankara, Vivasvat Saptamī 2097 falls on Monday 15 July. Saptamī runs from 20:50 on Sun 14 Jul to 20:52 on Mon 15 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-07-19", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7041, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-07-19T01:18:14+03:00", "utc": "2097-07-18T22:18:14Z", "ms": 4025024293916.387 }, "end": { "local": "2097-07-20T03:40:39+03:00", "utc": "2097-07-20T00:40:39Z", "ms": 4025119238810.461 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-19T01:18:14+03:00", "utc": "2097-07-18T22:18:14Z", "ms": 4025024293916.387 }, "end": { "local": "2097-07-20T03:40:39+03:00", "utc": "2097-07-20T00:40:39Z", "ms": 4025119238810.461 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-07-19", "window": { "start": { "local": "2097-07-19T05:37:10+03:00", "utc": "2097-07-19T02:37:10Z", "ms": 4025039830122.6978 }, "end": { "local": "2097-07-19T05:37:10+03:00", "utc": "2097-07-19T02:37:10Z", "ms": 4025039830122.6978 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-07-20", "window": { "start": { "local": "2097-07-20T05:38:00+03:00", "utc": "2097-07-20T02:38:00Z", "ms": 4025126279645.7627 }, "end": { "local": "2097-07-20T05:38:00+03:00", "utc": "2097-07-20T02:38:00Z", "ms": 4025126279645.7627 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:18 on Fri 19 Jul to 03:41 on Sat 20 Jul.", "fact": "2097-07-18T22:18:14Z → 2097-07-20T00:40:39Z" }, { "step": "kaala", "text": "Sunrise is at 05:37 on the 19th and 05:38 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 7041 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Ankara, 2097: Friday 19 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": "2097-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-19", "confidence": "determinate" } ], "quote": "In Ankara, Hariśayanī Ekādaśī 2097 falls on Friday 19 July. Ekādaśī runs from 01:18 on Fri 19 Jul to 03:41 on Sat 20 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-07-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-07-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31336, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-07-21T06:10:23+03:00", "utc": "2097-07-21T03:10:23Z", "ms": 4025214622865.9883 }, "end": { "local": "2097-07-22T08:37:25+03:00", "utc": "2097-07-22T05:37:25Z", "ms": 4025309845378.142 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-21T06:10:23+03:00", "utc": "2097-07-21T03:10:23Z", "ms": 4025214622865.9883 }, "end": { "local": "2097-07-22T08:37:25+03:00", "utc": "2097-07-22T05:37:25Z", "ms": 4025309845378.142 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-07-20", "window": { "start": { "local": "2097-07-20T20:12:37+03:00", "utc": "2097-07-20T17:12:37Z", "ms": 4025178757088.044 }, "end": { "local": "2097-07-20T21:28:07+03:00", "utc": "2097-07-20T18:28:07Z", "ms": 4025183286784.29 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "2097-07-21", "window": { "start": { "local": "2097-07-21T20:11:51+03:00", "utc": "2097-07-21T17:11:51Z", "ms": 4025265111249.323 }, "end": { "local": "2097-07-21T21:27:34+03:00", "utc": "2097-07-21T18:27:34Z", "ms": 4025269653826.699 } }, "covered_min": 76, "window_min": 76, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:10 on Sun 21 Jul to 08:37 on Mon 22 Jul.", "fact": "2097-07-21T03:10:23Z → 2097-07-22T05:37:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:13–21:28 on the 20th, 20:12–21:28 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 0 of 75 minutes on the 20th and 76 of 76 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 31336 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Sunday 21 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": "2097-07-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-21", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Sunday 21 July. Trayodaśī runs from 06:10 on Sun 21 Jul to 08:37 on Mon 22 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-07-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15569, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-07-23T10:54:21+03:00", "utc": "2097-07-23T07:54:21Z", "ms": 4025404460922.077 }, "end": { "local": "2097-07-24T12:56:18+03:00", "utc": "2097-07-24T09:56:18Z", "ms": 4025498178475.931 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-23T10:54:21+03:00", "utc": "2097-07-23T07:54:21Z", "ms": 4025404460922.077 }, "end": { "local": "2097-07-24T12:56:18+03:00", "utc": "2097-07-24T09:56:18Z", "ms": 4025498178475.931 } }, "kaala": "sayahna", "days": [ { "local_date": "2097-07-23", "window": { "start": { "local": "2097-07-23T17:16:18+03:00", "utc": "2097-07-23T14:16:18Z", "ms": 4025427377846.4463 }, "end": { "local": "2097-07-23T20:10:14+03:00", "utc": "2097-07-23T17:10:14Z", "ms": 4025437814327.8394 } }, "covered_min": 174, "window_min": 174, "qualifies": true }, { "local_date": "2097-07-24", "window": { "start": { "local": "2097-07-24T17:15:47+03:00", "utc": "2097-07-24T14:15:47Z", "ms": 4025513747398.837 }, "end": { "local": "2097-07-24T20:09:23+03:00", "utc": "2097-07-24T17:09:23Z", "ms": 4025524163298.36 } }, "covered_min": 0, "window_min": 174, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:54 on Tue 23 Jul to 12:56 on Wed 24 Jul.", "fact": "2097-07-23T07:54:21Z → 2097-07-24T09:56:18Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:16–20:10 on the 23rd, 17:16–20:09 on the 24th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 174 of 174 minutes on the 23rd and 0 of 174 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15569 s" }, { "step": "ruling", "text": "Kokilā Vrata, Ankara, 2097: Tuesday 23 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kokila-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-23", "confidence": "determinate" } ], "quote": "In Ankara, Kokilā Vrata 2097 falls on Tuesday 23 July. Pūrṇimā runs from 10:54 on Tue 23 Jul to 12:56 on Wed 24 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25985, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-07-23T10:54:21+03:00", "utc": "2097-07-23T07:54:21Z", "ms": 4025404460922.077 }, "end": { "local": "2097-07-24T12:56:18+03:00", "utc": "2097-07-24T09:56:18Z", "ms": 4025498178475.931 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-23T10:54:21+03:00", "utc": "2097-07-23T07:54:21Z", "ms": 4025404460922.077 }, "end": { "local": "2097-07-24T12:56:18+03:00", "utc": "2097-07-24T09:56:18Z", "ms": 4025498178475.931 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-07-23", "window": { "start": { "local": "2097-07-23T20:10:14+03:00", "utc": "2097-07-23T17:10:14Z", "ms": 4025437814327.8394 }, "end": { "local": "2097-07-23T21:26:24+03:00", "utc": "2097-07-23T18:26:24Z", "ms": 4025442383590.8936 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "2097-07-24", "window": { "start": { "local": "2097-07-24T20:09:23+03:00", "utc": "2097-07-24T17:09:23Z", "ms": 4025524163298.36 }, "end": { "local": "2097-07-24T21:25:46+03:00", "utc": "2097-07-24T18:25:46Z", "ms": 4025528746350.278 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:54 on Tue 23 Jul to 12:56 on Wed 24 Jul.", "fact": "2097-07-23T07:54:21Z → 2097-07-24T09:56:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:10–21:26 on the 23rd, 20:09–21:26 on the 24th.", "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 23rd and 0 of 76 on the 24th.", "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 25985 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Ankara, 2097: Tuesday 23 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": "2097-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-23", "confidence": "determinate" } ], "quote": "In Ankara, Śiva Śayanotsava 2097 falls on Tuesday 23 July. Pūrṇimā runs from 10:54 on Tue 23 Jul to 12:56 on Wed 24 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8393, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-07-23T10:54:21+03:00", "utc": "2097-07-23T07:54:21Z", "ms": 4025404460922.077 }, "end": { "local": "2097-07-24T12:56:18+03:00", "utc": "2097-07-24T09:56:18Z", "ms": 4025498178475.931 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-23T10:54:21+03:00", "utc": "2097-07-23T07:54:21Z", "ms": 4025404460922.077 }, "end": { "local": "2097-07-24T12:56:18+03:00", "utc": "2097-07-24T09:56:18Z", "ms": 4025498178475.931 } }, "kaala": "udaya-3", "days": [ { "local_date": "2097-07-23", "window": { "start": { "local": "2097-07-23T05:40:32+03:00", "utc": "2097-07-23T02:40:32Z", "ms": 4025385631920.8745 }, "end": { "local": "2097-07-23T08:34:28+03:00", "utc": "2097-07-23T05:34:28Z", "ms": 4025396068402.2676 } }, "covered_min": 0, "window_min": 174, "qualifies": false }, { "local_date": "2097-07-24", "window": { "start": { "local": "2097-07-24T05:41:24+03:00", "utc": "2097-07-24T02:41:24Z", "ms": 4025472083800.745 }, "end": { "local": "2097-07-24T08:35:00+03:00", "utc": "2097-07-24T05:35:00Z", "ms": 4025482499700.268 } }, "covered_min": 174, "window_min": 174, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:54 on Tue 23 Jul to 12:56 on Wed 24 Jul.", "fact": "2097-07-23T07:54:21Z → 2097-07-24T09:56:18Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:41–08:34 on the 23rd, 05:41–08:35 on the 24th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 0 of 174 minutes on the 23rd and 174 of 174 on the 24th.", "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 8393 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Ankara, 2097: Wednesday 24 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": "2097-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-24", "confidence": "determinate" } ], "quote": "In Ankara, Vyāsa Pūjā 2097 falls on Wednesday 24 July. Pūrṇimā runs from 10:54 on Tue 23 Jul to 12:56 on Wed 24 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1385, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-07-23T10:54:21+03:00", "utc": "2097-07-23T07:54:21Z", "ms": 4025404460922.077 }, "end": { "local": "2097-07-24T12:56:18+03:00", "utc": "2097-07-24T09:56:18Z", "ms": 4025498178475.931 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2097-07-23T10:54:21+03:00", "utc": "2097-07-23T07:54:21Z", "ms": 4025404460922.077 }, "end": { "local": "2097-07-24T12:56:18+03:00", "utc": "2097-07-24T09:56:18Z", "ms": 4025498178475.931 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-07-23", "window": { "start": { "local": "2097-07-23T12:31:23+03:00", "utc": "2097-07-23T09:31:23Z", "ms": 4025410283124.357 }, "end": { "local": "2097-07-23T13:19:23+03:00", "utc": "2097-07-23T10:19:23Z", "ms": 4025413163124.357 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-07-24", "window": { "start": { "local": "2097-07-24T12:31:24+03:00", "utc": "2097-07-24T09:31:24Z", "ms": 4025496683549.5527 }, "end": { "local": "2097-07-24T13:19:24+03:00", "utc": "2097-07-24T10:19:24Z", "ms": 4025499563549.5527 } }, "covered_min": 25, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:54 on Tue 23 Jul to 12:56 on Wed 24 Jul.", "fact": "2097-07-23T07:54:21Z → 2097-07-24T09:56:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 23rd, 12:31–13:19 on the 24th.", "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 23rd and 25 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1385 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Ankara, 2097: Wednesday 24 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": "2097-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-24", "confidence": "determinate" } ], "quote": "In Ankara, Guru Pūrṇimā 2097 falls on Wednesday 24 July. Pūrṇimā runs from 10:54 on Tue 23 Jul to 12:56 on Wed 24 Jul and covers 25 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20295, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2097-07-25T14:40:25+03:00", "utc": "2097-07-25T11:40:25Z", "ms": 4025590824787.8774 }, "end": { "local": "2097-07-26T16:04:51+03:00", "utc": "2097-07-26T13:04:51Z", "ms": 4025682291289.8467 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-07-25T14:40:25+03:00", "utc": "2097-07-25T11:40:25Z", "ms": 4025590824787.8774 }, "end": { "local": "2097-07-26T16:04:51+03:00", "utc": "2097-07-26T13:04:51Z", "ms": 4025682291289.8467 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-07-25", "window": { "start": { "local": "2097-07-25T21:15:42+03:00", "utc": "2097-07-25T18:15:42Z", "ms": 4025614541827.8594 }, "end": { "local": "2097-07-25T21:15:42+03:00", "utc": "2097-07-25T18:15:42Z", "ms": 4025614541827.8594 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-07-26", "window": { "start": { "local": "2097-07-26T21:43:06+03:00", "utc": "2097-07-26T18:43:06Z", "ms": 4025702585844.7803 }, "end": { "local": "2097-07-26T21:43:06+03:00", "utc": "2097-07-26T18:43:06Z", "ms": 4025702585844.7803 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 14:40 on Thu 25 Jul to 16:05 on Fri 26 Jul.", "fact": "2097-07-25T11:40:25Z → 2097-07-26T13:04:51Z" }, { "step": "kaala", "text": "Moonrise is at 21:16 on the 25th and 21:43 on the 26th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 25th and is not on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20295 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Ankara, 2097: Thursday 25 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ashunya-shayana-vrata-ashadha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 2 Asunya sayana vrata (candrodaya vyapini; purvahna vyapini and purvaviddha in Bengal)." } ], "not_evaluated": "In Bengal the row reads pūrvāhṇa and pūrvaviddha; that reading is not applied.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-07-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-25", "confidence": "determinate" } ], "quote": "In Ankara, Aśūnya Śayana Vrata (Āṣāḍha) 2097 falls on Thursday 25 July. Dvitīyā runs from 14:40 on Thu 25 Jul to 16:05 on Fri 26 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-07-27", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16925, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-07-27T17:08:03+03:00", "utc": "2097-07-27T14:08:03Z", "ms": 4025772482620.0435 }, "end": { "local": "2097-07-28T17:48:00+03:00", "utc": "2097-07-28T14:48:00Z", "ms": 4025861280363.971 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-07-27T17:08:03+03:00", "utc": "2097-07-27T14:08:03Z", "ms": 4025772482620.0435 }, "end": { "local": "2097-07-28T17:48:00+03:00", "utc": "2097-07-28T14:48:00Z", "ms": 4025861280363.971 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-07-27", "window": { "start": { "local": "2097-07-27T22:07:26+03:00", "utc": "2097-07-27T19:07:26Z", "ms": 4025790446180.8555 }, "end": { "local": "2097-07-27T22:07:26+03:00", "utc": "2097-07-27T19:07:26Z", "ms": 4025790446180.8555 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-07-28", "window": { "start": { "local": "2097-07-28T22:30:05+03:00", "utc": "2097-07-28T19:30:05Z", "ms": 4025878205384.971 }, "end": { "local": "2097-07-28T22:30:05+03:00", "utc": "2097-07-28T19:30:05Z", "ms": 4025878205384.971 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:08 on Sat 27 Jul to 17:48 on Sun 28 Jul.", "fact": "2097-07-27T14:08:03Z → 2097-07-28T14:48:00Z" }, { "step": "kaala", "text": "Moonrise is at 22:07 on the 27th and 22:30 on the 28th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 27th and is not on the 28th.", "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 16925 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Saturday 27 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": "2097-07-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-07-27", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Saturday 27 July. Caturthī runs from 17:08 on Sat 27 Jul to 17:48 on Sun 28 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-07-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-08-04", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9706, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-08-03T11:24:54+03:00", "utc": "2097-08-03T08:24:54Z", "ms": 4026356694323.4287 }, "end": { "local": "2097-08-04T08:33:08+03:00", "utc": "2097-08-04T05:33:08Z", "ms": 4026432788234.6235 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-03T11:24:54+03:00", "utc": "2097-08-03T08:24:54Z", "ms": 4026356694323.4287 }, "end": { "local": "2097-08-04T08:33:08+03:00", "utc": "2097-08-04T05:33:08Z", "ms": 4026432788234.6235 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-08-03", "window": { "start": { "local": "2097-08-03T05:50:26+03:00", "utc": "2097-08-03T02:50:26Z", "ms": 4026336625840.7783 }, "end": { "local": "2097-08-03T05:50:26+03:00", "utc": "2097-08-03T02:50:26Z", "ms": 4026336625840.7783 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-08-04", "window": { "start": { "local": "2097-08-04T05:51:22+03:00", "utc": "2097-08-04T02:51:22Z", "ms": 4026423081781.52 }, "end": { "local": "2097-08-04T05:51:22+03:00", "utc": "2097-08-04T02:51:22Z", "ms": 4026423081781.52 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:25 on Sat 3 Aug to 08:33 on Sun 4 Aug.", "fact": "2097-08-03T08:24:54Z → 2097-08-04T05:33:08Z" }, { "step": "kaala", "text": "Sunrise is at 05:50 on the 3rd and 05:51 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9706 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Ankara, 2097: Sunday 4 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": "2097-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-04", "confidence": "determinate" } ], "quote": "In Ankara, Kāmikā Ekādaśī 2097 falls on Sunday 4 August. Ekādaśī runs from 11:25 on Sat 3 Aug to 08:33 on Sun 4 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-08-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-08-05", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16664, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-08-05T05:20:16+03:00", "utc": "2097-08-05T02:20:16Z", "ms": 4026507616303.9487 }, "end": { "local": "2097-08-06T01:54:21+03:00", "utc": "2097-08-05T22:54:21Z", "ms": 4026581661434.544 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-05T05:20:16+03:00", "utc": "2097-08-05T02:20:16Z", "ms": 4026507616303.9487 }, "end": { "local": "2097-08-06T01:54:21+03:00", "utc": "2097-08-05T22:54:21Z", "ms": 4026581661434.544 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-08-04", "window": { "start": { "local": "2097-08-04T19:58:18+03:00", "utc": "2097-08-04T16:58:18Z", "ms": 4026473897613.1943 }, "end": { "local": "2097-08-04T21:17:30+03:00", "utc": "2097-08-04T18:17:30Z", "ms": 4026478649655.604 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "2097-08-05", "window": { "start": { "local": "2097-08-05T19:57:08+03:00", "utc": "2097-08-05T16:57:08Z", "ms": 4026560228355.323 }, "end": { "local": "2097-08-05T21:16:37+03:00", "utc": "2097-08-05T18:16:37Z", "ms": 4026564997142.837 } }, "covered_min": 79, "window_min": 79, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:20 on Mon 5 Aug to 01:54 on Tue 6 Aug.", "fact": "2097-08-05T02:20:16Z → 2097-08-05T22:54:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:58–21:17 on the 4th, 19:57–21:17 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 79 minutes on the 4th and 79 of 79 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16664 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Monday 5 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": "2097-08-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-05", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Monday 5 August. Trayodaśī runs from 05:20 on Mon 5 Aug to 01:54 on Tue 6 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-08-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-08-05", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-05", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2110, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-08-06T01:54:21+03:00", "utc": "2097-08-05T22:54:21Z", "ms": 4026581661434.544 }, "end": { "local": "2097-08-06T22:24:47+03:00", "utc": "2097-08-06T19:24:47Z", "ms": 4026655487117.3457 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-06T01:54:21+03:00", "utc": "2097-08-05T22:54:21Z", "ms": 4026581661434.544 }, "end": { "local": "2097-08-06T22:24:47+03:00", "utc": "2097-08-06T19:24:47Z", "ms": 4026655487117.3457 } }, "kaala": "nishita", "days": [ { "local_date": "2097-08-05", "window": { "start": { "local": "2097-08-06T00:31:11+03:00", "utc": "2097-08-05T21:31:11Z", "ms": 4026576671308.499 }, "end": { "local": "2097-08-06T01:19:11+03:00", "utc": "2097-08-05T22:19:11Z", "ms": 4026579551308.499 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-08-06", "window": { "start": { "local": "2097-08-07T00:31:04+03:00", "utc": "2097-08-06T21:31:04Z", "ms": 4026663064253.454 }, "end": { "local": "2097-08-07T01:19:04+03:00", "utc": "2097-08-06T22:19:04Z", "ms": 4026665944253.454 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:54 on Tue 6 Aug to 22:25 on Tue 6 Aug.", "fact": "2097-08-05T22:54:21Z → 2097-08-06T19:24:47Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:31–01:19 on the 5th, 00:31–01:19 on the 6th.", "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 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 2110 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Monday 5 August.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-08-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-05", "confidence": "boundary" } ], "quote": "In Ankara, Śivarātri 2097 falls on Monday 5 August. Caturdaśī runs from 01:54 on Tue 6 Aug to 22:25 on Tue 6 Aug, and reaches niśītha on neither day.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-08-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-09", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 11, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2097-08-09T13:18:00+03:00", "utc": "2097-08-09T10:18:00Z", "ms": 4026881880145.8154 }, "end": { "local": "2097-08-10T11:17:02+03:00", "utc": "2097-08-10T08:17:02Z", "ms": 4026961021585.716 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-09T13:18:00+03:00", "utc": "2097-08-09T10:18:00Z", "ms": 4026881880145.8154 }, "end": { "local": "2097-08-10T11:17:02+03:00", "utc": "2097-08-10T08:17:02Z", "ms": 4026961021585.716 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-08-09", "window": { "start": { "local": "2097-08-09T12:30:11+03:00", "utc": "2097-08-09T09:30:11Z", "ms": 4026879011147.664 }, "end": { "local": "2097-08-09T13:18:11+03:00", "utc": "2097-08-09T10:18:11Z", "ms": 4026881891147.664 } }, "covered_min": 0, "window_min": 48, "qualifies": true }, { "local_date": "2097-08-10", "window": { "start": { "local": "2097-08-10T12:30:02+03:00", "utc": "2097-08-10T09:30:02Z", "ms": 4026965401704.474 }, "end": { "local": "2097-08-10T13:18:02+03:00", "utc": "2097-08-10T10:18:02Z", "ms": 4026968281704.474 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:18 on Fri 9 Aug to 11:17 on Sat 10 Aug.", "fact": "2097-08-09T10:18:00Z → 2097-08-10T08:17:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 9th, 12:30–13:18 on the 10th.", "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 9th and 0 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 11 s < 300 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Ankara, 2097: Friday 9 August.", "fact": "confidence: boundary (margin)" } ], "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": "2097-08-09", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-09", "confidence": "determinate" } ], "quote": "In Ankara, Madhusravā Tṛtīyā (Hariyali Teej) 2097 falls on Friday 9 August. Tṛtīyā runs from 13:18 on Fri 9 Aug to 11:17 on Sat 10 Aug and covers 0 of 48 minutes of madhyāhna that midday. It is 0 min 11 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-08-10", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4380, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-08-10T11:17:02+03:00", "utc": "2097-08-10T08:17:02Z", "ms": 4026961021585.716 }, "end": { "local": "2097-08-11T10:00:48+03:00", "utc": "2097-08-11T07:00:48Z", "ms": 4027042847732.383 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-10T11:17:02+03:00", "utc": "2097-08-10T08:17:02Z", "ms": 4026961021585.716 }, "end": { "local": "2097-08-11T10:00:48+03:00", "utc": "2097-08-11T07:00:48Z", "ms": 4027042847732.383 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-08-10", "window": { "start": { "local": "2097-08-10T12:30:02+03:00", "utc": "2097-08-10T09:30:02Z", "ms": 4026965401704.474 }, "end": { "local": "2097-08-10T13:18:02+03:00", "utc": "2097-08-10T10:18:02Z", "ms": 4026968281704.474 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-08-11", "window": { "start": { "local": "2097-08-11T12:29:52+03:00", "utc": "2097-08-11T09:29:52Z", "ms": 4027051791688.3545 }, "end": { "local": "2097-08-11T13:17:52+03:00", "utc": "2097-08-11T10:17:52Z", "ms": 4027054671688.3545 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:17 on Sat 10 Aug to 10:01 on Sun 11 Aug.", "fact": "2097-08-10T08:17:02Z → 2097-08-11T07:00:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 10th, 12:30–13:18 on the 11th.", "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 10th and 0 of 48 on the 11th.", "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 4380 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Saturday 10 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-10", "confidence": "determinate" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Saturday 10 August. Caturthī runs from 11:17 on Sat 10 Aug to 10:01 on Sun 11 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-08-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8944, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2097-08-11T10:00:48+03:00", "utc": "2097-08-11T07:00:48Z", "ms": 4027042847732.383 }, "end": { "local": "2097-08-12T09:34:04+03:00", "utc": "2097-08-12T06:34:04Z", "ms": 4027127644205.8057 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-11T10:00:48+03:00", "utc": "2097-08-11T07:00:48Z", "ms": 4027042847732.383 }, "end": { "local": "2097-08-12T09:34:04+03:00", "utc": "2097-08-12T06:34:04Z", "ms": 4027127644205.8057 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-08-11", "window": { "start": { "local": "2097-08-11T12:29:52+03:00", "utc": "2097-08-11T09:29:52Z", "ms": 4027051791688.3545 }, "end": { "local": "2097-08-11T13:17:52+03:00", "utc": "2097-08-11T10:17:52Z", "ms": 4027054671688.3545 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-08-12", "window": { "start": { "local": "2097-08-12T12:29:41+03:00", "utc": "2097-08-12T09:29:41Z", "ms": 4027138181104.619 }, "end": { "local": "2097-08-12T13:17:41+03:00", "utc": "2097-08-12T10:17:41Z", "ms": 4027141061104.619 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 10:01 on Sun 11 Aug to 09:34 on Mon 12 Aug.", "fact": "2097-08-11T07:00:48Z → 2097-08-12T06:34:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 11th, 12:30–13:18 on the 12th.", "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 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8944 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Ankara, 2097: Sunday 11 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-11", "confidence": "determinate" } ], "quote": "In Ankara, Nāga Pañcamī 2097 falls on Sunday 11 August. Pañcamī runs from 10:01 on Sun 11 Aug to 09:34 on Mon 12 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-08-18", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36004, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-08-17T17:38:47+03:00", "utc": "2097-08-17T14:38:47Z", "ms": 4027588726796.922 }, "end": { "local": "2097-08-18T20:05:28+03:00", "utc": "2097-08-18T17:05:28Z", "ms": 4027683928442.6943 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-17T17:38:47+03:00", "utc": "2097-08-17T14:38:47Z", "ms": 4027588726796.922 }, "end": { "local": "2097-08-18T20:05:28+03:00", "utc": "2097-08-18T17:05:28Z", "ms": 4027683928442.6943 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-08-18", "window": { "start": { "local": "2097-08-18T06:04:36+03:00", "utc": "2097-08-18T03:04:36Z", "ms": 4027633475669.4243 }, "end": { "local": "2097-08-18T06:04:36+03:00", "utc": "2097-08-18T03:04:36Z", "ms": 4027633475669.4243 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-08-19", "window": { "start": { "local": "2097-08-19T06:05:32+03:00", "utc": "2097-08-19T03:05:32Z", "ms": 4027719932405.1846 }, "end": { "local": "2097-08-19T06:05:32+03:00", "utc": "2097-08-19T03:05:32Z", "ms": 4027719932405.1846 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:39 on Sat 17 Aug to 20:05 on Sun 18 Aug.", "fact": "2097-08-17T14:38:47Z → 2097-08-18T17:05:28Z" }, { "step": "kaala", "text": "Sunrise is at 06:05 on the 18th and 06:06 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 36004 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Ankara, 2097: Sunday 18 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": "2097-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-18", "confidence": "determinate" } ], "quote": "In Ankara, Putradā Ekādaśī 2097 falls on Sunday 18 August. Ekādaśī runs from 17:39 on Sat 17 Aug to 20:05 on Sun 18 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-08-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24542, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2097-08-18T20:05:28+03:00", "utc": "2097-08-18T17:05:28Z", "ms": 4027683928442.6943 }, "end": { "local": "2097-08-19T22:20:27+03:00", "utc": "2097-08-19T19:20:27Z", "ms": 4027778426558.868 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-18T20:05:28+03:00", "utc": "2097-08-18T17:05:28Z", "ms": 4027683928442.6943 }, "end": { "local": "2097-08-19T22:20:27+03:00", "utc": "2097-08-19T19:20:27Z", "ms": 4027778426558.868 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-08-18", "window": { "start": { "local": "2097-08-18T12:28:26+03:00", "utc": "2097-08-18T09:28:26Z", "ms": 4027656506156.3755 }, "end": { "local": "2097-08-18T13:16:26+03:00", "utc": "2097-08-18T10:16:26Z", "ms": 4027659386156.3755 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-08-19", "window": { "start": { "local": "2097-08-19T12:28:12+03:00", "utc": "2097-08-19T09:28:12Z", "ms": 4027742891859.76 }, "end": { "local": "2097-08-19T13:16:12+03:00", "utc": "2097-08-19T10:16:12Z", "ms": 4027745771859.76 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 20:05 on Sun 18 Aug to 22:20 on Mon 19 Aug.", "fact": "2097-08-18T17:05:28Z → 2097-08-19T19:20:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 18th, 12:28–13:16 on the 19th.", "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 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24542 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Ankara, 2097: Monday 19 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "damodara-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Buddha dvadasi, Damodara dvadasi (purvaviddha), Visnu-pavitraropana." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-19", "confidence": "determinate" } ], "quote": "In Ankara, Dāmodara Dvādaśī 2097 falls on Monday 19 August. Dvādaśī runs from 20:05 on Sun 18 Aug to 22:20 on Mon 19 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pradosha-vrata?on=2097-08-20", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4674, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-08-19T22:20:27+03:00", "utc": "2097-08-19T19:20:27Z", "ms": 4027778426558.868 }, "end": { "local": "2097-08-21T00:16:01+03:00", "utc": "2097-08-20T21:16:01Z", "ms": 4027871760587.249 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-19T22:20:27+03:00", "utc": "2097-08-19T19:20:27Z", "ms": 4027778426558.868 }, "end": { "local": "2097-08-21T00:16:01+03:00", "utc": "2097-08-20T21:16:01Z", "ms": 4027871760587.249 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-08-19", "window": { "start": { "local": "2097-08-19T19:38:51+03:00", "utc": "2097-08-19T16:38:51Z", "ms": 4027768731314.3354 }, "end": { "local": "2097-08-19T21:02:32+03:00", "utc": "2097-08-19T18:02:32Z", "ms": 4027773752350.9897 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "2097-08-20", "window": { "start": { "local": "2097-08-20T19:37:25+03:00", "utc": "2097-08-20T16:37:25Z", "ms": 4027855045075.091 }, "end": { "local": "2097-08-20T21:01:25+03:00", "utc": "2097-08-20T18:01:25Z", "ms": 4027860085160.881 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:20 on Mon 19 Aug to 00:16 on Wed 21 Aug.", "fact": "2097-08-19T19:20:27Z → 2097-08-20T21:16:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:39–21:03 on the 19th, 19:37–21:01 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 84 minutes on the 19th and 84 of 84 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 4674 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Tuesday 20 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": "2097-08-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-20", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Tuesday 20 August. Trayodaśī runs from 22:20 on Mon 19 Aug to 00:16 on Wed 21 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-08-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11683, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-08-22T01:47:54+03:00", "utc": "2097-08-21T22:47:54Z", "ms": 4027963673922.3867 }, "end": { "local": "2097-08-23T02:54:36+03:00", "utc": "2097-08-22T23:54:36Z", "ms": 4028054076297.3335 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2097-08-22T14:24:25+03:00", "utc": "2097-08-22T11:24:25Z", "ms": 4028009064664.682 }, "end": { "local": "2097-08-23T02:54:36+03:00", "utc": "2097-08-22T23:54:36Z", "ms": 4028054076297.3335 } }, "kaala": "day", "days": [ { "local_date": "2097-08-22", "window": { "start": { "local": "2097-08-22T06:08:22+03:00", "utc": "2097-08-22T03:08:22Z", "ms": 4027979302291.556 }, "end": { "local": "2097-08-23T06:09:19+03:00", "utc": "2097-08-23T03:09:19Z", "ms": 4028065758808.507 } }, "covered_min": 750, "window_min": 1441, "qualifies": true }, { "local_date": "2097-08-23", "window": { "start": { "local": "2097-08-23T06:09:19+03:00", "utc": "2097-08-23T03:09:19Z", "ms": 4028065758808.507 }, "end": { "local": "2097-08-24T06:10:15+03:00", "utc": "2097-08-24T03:10:15Z", "ms": 4028152215271.02 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:48 on Thu 22 Aug to 02:55 on Fri 23 Aug. Its second half begins at 14:24 on Thu 22 Aug.", "fact": "2097-08-21T22:47:54Z → 2097-08-22T23:54:36Z · second half from 2097-08-22T11:24:25Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:08 on the 22nd, and from 06:09 on the 23rd.", "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 750 of 1441 minutes on the 22nd and 0 of 1441 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11683 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Ankara, 2097: Thursday 22 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-22", "confidence": "determinate" } ], "quote": "In Ankara, Rakṣā Bandhana (Rakhi) 2097 falls on Thursday 22 August. The second half of Pūrṇimā runs from 14:24 on Thu 22 Aug to 02:55 on Fri 23 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34354, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-08-22T01:47:54+03:00", "utc": "2097-08-21T22:47:54Z", "ms": 4027963673922.3867 }, "end": { "local": "2097-08-23T02:54:36+03:00", "utc": "2097-08-22T23:54:36Z", "ms": 4028054076297.3335 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2097-08-22T01:47:54+03:00", "utc": "2097-08-21T22:47:54Z", "ms": 4027963673922.3867 }, "end": { "local": "2097-08-23T02:54:36+03:00", "utc": "2097-08-22T23:54:36Z", "ms": 4028054076297.3335 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-08-22", "window": { "start": { "local": "2097-08-22T12:27:26+03:00", "utc": "2097-08-22T09:27:26Z", "ms": 4028002046144.464 }, "end": { "local": "2097-08-22T13:15:26+03:00", "utc": "2097-08-22T10:15:26Z", "ms": 4028004926144.464 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-08-23", "window": { "start": { "local": "2097-08-23T12:27:10+03:00", "utc": "2097-08-23T09:27:10Z", "ms": 4028088430016.4277 }, "end": { "local": "2097-08-23T13:15:10+03:00", "utc": "2097-08-23T10:15:10Z", "ms": 4028091310016.4277 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:48 on Thu 22 Aug to 02:55 on Fri 23 Aug.", "fact": "2097-08-21T22:47:54Z → 2097-08-22T23:54:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 22nd, 12:27–13:15 on the 23rd.", "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 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34354 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Ankara, 2097: Thursday 22 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": "2097-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-22", "confidence": "determinate" } ], "quote": "In Ankara, Ṛṣi Tarpaṇa 2097 falls on Thursday 22 August. Pūrṇimā runs from 01:48 on Thu 22 Aug to 02:55 on Fri 23 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26371, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2097-08-24T03:36:26+03:00", "utc": "2097-08-24T00:36:26Z", "ms": 4028142985705.02 }, "end": { "local": "2097-08-25T03:54:29+03:00", "utc": "2097-08-25T00:54:29Z", "ms": 4028230469008.779 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-08-24T03:36:26+03:00", "utc": "2097-08-24T00:36:26Z", "ms": 4028142985705.02 }, "end": { "local": "2097-08-25T03:54:29+03:00", "utc": "2097-08-25T00:54:29Z", "ms": 4028230469008.779 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-08-23", "window": { "start": { "local": "2097-08-23T20:11:47+03:00", "utc": "2097-08-23T17:11:47Z", "ms": 4028116307289.697 }, "end": { "local": "2097-08-23T20:11:47+03:00", "utc": "2097-08-23T17:11:47Z", "ms": 4028116307289.697 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-08-24", "window": { "start": { "local": "2097-08-24T20:34:58+03:00", "utc": "2097-08-24T17:34:58Z", "ms": 4028204097653.6665 }, "end": { "local": "2097-08-24T20:34:58+03:00", "utc": "2097-08-24T17:34:58Z", "ms": 4028204097653.6665 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 03:36 on Sat 24 Aug to 03:54 on Sun 25 Aug.", "fact": "2097-08-24T00:36:26Z → 2097-08-25T00:54:29Z" }, { "step": "kaala", "text": "Moonrise is at 20:12 on the 23rd and 20:35 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 23rd and is on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26371 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Ankara, 2097: Saturday 24 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": "2097-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-24", "confidence": "determinate" } ], "quote": "In Ankara, Aśūnya Śayana Vrata 2097 falls on Saturday 24 August. Dvitīyā runs from 03:36 on Sat 24 Aug to 03:54 on Sun 25 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30728, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2097-08-25T03:54:29+03:00", "utc": "2097-08-25T00:54:29Z", "ms": 4028230469008.779 }, "end": { "local": "2097-08-26T03:49:54+03:00", "utc": "2097-08-26T00:49:54Z", "ms": 4028316594142.1387 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-08-25T03:54:29+03:00", "utc": "2097-08-25T00:54:29Z", "ms": 4028230469008.779 }, "end": { "local": "2097-08-26T03:49:54+03:00", "utc": "2097-08-26T00:49:54Z", "ms": 4028316594142.1387 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-08-25", "window": { "start": { "local": "2097-08-25T12:26:37+03:00", "utc": "2097-08-25T09:26:37Z", "ms": 4028261196527.1084 }, "end": { "local": "2097-08-25T13:14:37+03:00", "utc": "2097-08-25T10:14:37Z", "ms": 4028264076527.1084 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-08-26", "window": { "start": { "local": "2097-08-26T12:26:19+03:00", "utc": "2097-08-26T09:26:19Z", "ms": 4028347579201.415 }, "end": { "local": "2097-08-26T13:14:19+03:00", "utc": "2097-08-26T10:14:19Z", "ms": 4028350459201.415 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 03:54 on Sun 25 Aug to 03:50 on Mon 26 Aug.", "fact": "2097-08-25T00:54:29Z → 2097-08-26T00:49:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 25th, 12:26–13:14 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30728 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Ankara, 2097: Sunday 25 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": "2097-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-25", "confidence": "determinate" } ], "quote": "In Ankara, Kajjalī Tṛtīyā (Kajari Teej) 2097 falls on Sunday 25 August. Tṛtīyā runs from 03:54 on Sun 25 Aug to 03:50 on Mon 26 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28491, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-08-26T03:49:54+03:00", "utc": "2097-08-26T00:49:54Z", "ms": 4028316594142.1387 }, "end": { "local": "2097-08-27T03:23:21+03:00", "utc": "2097-08-27T00:23:21Z", "ms": 4028401401067.656 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-08-26T03:49:54+03:00", "utc": "2097-08-26T00:49:54Z", "ms": 4028316594142.1387 }, "end": { "local": "2097-08-27T03:23:21+03:00", "utc": "2097-08-27T00:23:21Z", "ms": 4028401401067.656 } }, "kaala": "sayahna", "days": [ { "local_date": "2097-08-25", "window": { "start": { "local": "2097-08-25T16:50:15+03:00", "utc": "2097-08-25T13:50:15Z", "ms": 4028277015434.1313 }, "end": { "local": "2097-08-25T19:30:01+03:00", "utc": "2097-08-25T16:30:01Z", "ms": 4028286601372.1465 } }, "covered_min": 0, "window_min": 160, "qualifies": false }, { "local_date": "2097-08-26", "window": { "start": { "local": "2097-08-26T16:49:14+03:00", "utc": "2097-08-26T13:49:14Z", "ms": 4028363353894.845 }, "end": { "local": "2097-08-26T19:28:30+03:00", "utc": "2097-08-26T16:28:30Z", "ms": 4028372910357.1323 } }, "covered_min": 159, "window_min": 159, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:50 on Mon 26 Aug to 03:23 on Tue 27 Aug.", "fact": "2097-08-26T00:49:54Z → 2097-08-27T00:23:21Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:50–19:30 on the 25th, 16:49–19:29 on the 26th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 0 of 160 minutes on the 25th and 159 of 159 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 28491 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Ankara, 2097: Monday 26 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": "2097-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-26", "confidence": "determinate" } ], "quote": "In Ankara, Bahulā Caturthī 2097 falls on Monday 26 August. Caturthī runs from 03:50 on Mon 26 Aug to 03:23 on Tue 27 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-08-26", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21792, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-08-26T03:49:54+03:00", "utc": "2097-08-26T00:49:54Z", "ms": 4028316594142.1387 }, "end": { "local": "2097-08-27T03:23:21+03:00", "utc": "2097-08-27T00:23:21Z", "ms": 4028401401067.656 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-08-26T03:49:54+03:00", "utc": "2097-08-26T00:49:54Z", "ms": 4028316594142.1387 }, "end": { "local": "2097-08-27T03:23:21+03:00", "utc": "2097-08-27T00:23:21Z", "ms": 4028401401067.656 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-08-25", "window": { "start": { "local": "2097-08-25T20:57:19+03:00", "utc": "2097-08-25T17:57:19Z", "ms": 4028291838682.4165 }, "end": { "local": "2097-08-25T20:57:19+03:00", "utc": "2097-08-25T17:57:19Z", "ms": 4028291838682.4165 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-08-26", "window": { "start": { "local": "2097-08-26T21:20:09+03:00", "utc": "2097-08-26T18:20:09Z", "ms": 4028379608873.009 }, "end": { "local": "2097-08-26T21:20:09+03:00", "utc": "2097-08-26T18:20:09Z", "ms": 4028379608873.009 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:50 on Mon 26 Aug to 03:23 on Tue 27 Aug.", "fact": "2097-08-26T00:49:54Z → 2097-08-27T00:23:21Z" }, { "step": "kaala", "text": "Moonrise is at 20:57 on the 25th and 21:20 on the 26th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 25th and is on the 26th.", "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 21792 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Monday 26 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": "2097-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-26", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Monday 26 August. Caturthī runs from 03:50 on Mon 26 Aug to 03:23 on Tue 27 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-08-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35449, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2097-08-28T02:34:54+03:00", "utc": "2097-08-27T23:34:54Z", "ms": 4028484894215.744 }, "end": { "local": "2097-08-29T01:24:15+03:00", "utc": "2097-08-28T22:24:15Z", "ms": 4028567055120.1226 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-08-28T02:34:54+03:00", "utc": "2097-08-27T23:34:54Z", "ms": 4028484894215.744 }, "end": { "local": "2097-08-29T01:24:15+03:00", "utc": "2097-08-28T22:24:15Z", "ms": 4028567055120.1226 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-08-28", "window": { "start": { "local": "2097-08-28T12:25:43+03:00", "utc": "2097-08-28T09:25:43Z", "ms": 4028520343478.932 }, "end": { "local": "2097-08-28T13:13:43+03:00", "utc": "2097-08-28T10:13:43Z", "ms": 4028523223478.932 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-08-29", "window": { "start": { "local": "2097-08-29T12:25:25+03:00", "utc": "2097-08-29T09:25:25Z", "ms": 4028606725118.4814 }, "end": { "local": "2097-08-29T13:13:25+03:00", "utc": "2097-08-29T10:13:25Z", "ms": 4028609605118.4814 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:35 on Wed 28 Aug to 01:24 on Thu 29 Aug.", "fact": "2097-08-27T23:34:54Z → 2097-08-28T22:24:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 28th, 12:25–13:13 on the 29th.", "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 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35449 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Ankara, 2097: Wednesday 28 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": "2097-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-28", "confidence": "determinate" } ], "quote": "In Ankara, Hala Ṣaṣṭhī 2097 falls on Wednesday 28 August. Ṣaṣṭhī runs from 02:35 on Wed 28 Aug to 01:24 on Thu 29 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2083, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-08-29T23:51:10+03:00", "utc": "2097-08-29T20:51:10Z", "ms": 4028647869962.85 }, "end": { "local": "2097-08-30T21:56:04+03:00", "utc": "2097-08-30T18:56:04Z", "ms": 4028727363558.84 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-08-29T23:51:10+03:00", "utc": "2097-08-29T20:51:10Z", "ms": 4028647869962.85 }, "end": { "local": "2097-08-30T21:56:04+03:00", "utc": "2097-08-30T18:56:04Z", "ms": 4028727363558.84 } }, "kaala": "nishita", "days": [ { "local_date": "2097-08-29", "window": { "start": { "local": "2097-08-30T00:25:53+03:00", "utc": "2097-08-29T21:25:53Z", "ms": 4028649953229.867 }, "end": { "local": "2097-08-30T01:13:53+03:00", "utc": "2097-08-29T22:13:53Z", "ms": 4028652833229.867 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-08-30", "window": { "start": { "local": "2097-08-31T00:25:35+03:00", "utc": "2097-08-30T21:25:35Z", "ms": 4028736334548.1606 }, "end": { "local": "2097-08-31T01:13:35+03:00", "utc": "2097-08-30T22:13:35Z", "ms": 4028739214548.1606 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 23:51 on Thu 29 Aug to 21:56 on Fri 30 Aug.", "fact": "2097-08-29T20:51:10Z → 2097-08-30T18:56:04Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:26–01:14 on the 29th, 00:26–01:14 on the 30th.", "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 29th and 0 of 48 on the 30th.", "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 2083 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Ankara, 2097: Thursday 29 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": "2097-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-29", "confidence": "determinate" } ], "quote": "In Ankara, Janmāṣṭamī 2097 falls on Thursday 29 August. Aṣṭamī runs from 23:51 on Thu 29 Aug to 21:56 on Fri 30 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38265, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2097-08-29T01:24:15+03:00", "utc": "2097-08-28T22:24:15Z", "ms": 4028567055120.1226 }, "end": { "local": "2097-08-29T23:51:10+03:00", "utc": "2097-08-29T20:51:10Z", "ms": 4028647869962.85 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-08-29T01:24:15+03:00", "utc": "2097-08-28T22:24:15Z", "ms": 4028567055120.1226 }, "end": { "local": "2097-08-29T23:51:10+03:00", "utc": "2097-08-29T20:51:10Z", "ms": 4028647869962.85 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-08-28", "window": { "start": { "local": "2097-08-28T12:25:43+03:00", "utc": "2097-08-28T09:25:43Z", "ms": 4028520343478.932 }, "end": { "local": "2097-08-28T13:13:43+03:00", "utc": "2097-08-28T10:13:43Z", "ms": 4028523223478.932 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-08-29", "window": { "start": { "local": "2097-08-29T12:25:25+03:00", "utc": "2097-08-29T09:25:25Z", "ms": 4028606725118.4814 }, "end": { "local": "2097-08-29T13:13:25+03:00", "utc": "2097-08-29T10:13:25Z", "ms": 4028609605118.4814 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 01:24 on Thu 29 Aug to 23:51 on Thu 29 Aug.", "fact": "2097-08-28T22:24:15Z → 2097-08-29T20:51:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 28th, 12:25–13:13 on the 29th.", "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 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 38265 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Ankara, 2097: Thursday 29 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": "2097-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-08-29", "confidence": "determinate" } ], "quote": "In Ankara, Śītalā Saptamī 2097 falls on Thursday 29 August. Saptamī runs from 01:24 on Thu 29 Aug to 23:51 on Thu 29 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-09-02", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29001, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-09-01T17:07:36+03:00", "utc": "2097-09-01T14:07:36Z", "ms": 4028882855612.445 }, "end": { "local": "2097-09-02T14:22:02+03:00", "utc": "2097-09-02T11:22:02Z", "ms": 4028959322164.8867 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-01T17:07:36+03:00", "utc": "2097-09-01T14:07:36Z", "ms": 4028882855612.445 }, "end": { "local": "2097-09-02T14:22:02+03:00", "utc": "2097-09-02T11:22:02Z", "ms": 4028959322164.8867 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-09-01", "window": { "start": { "local": "2097-09-01T06:17:45+03:00", "utc": "2097-09-01T03:17:45Z", "ms": 4028843865499.137 }, "end": { "local": "2097-09-01T06:17:45+03:00", "utc": "2097-09-01T03:17:45Z", "ms": 4028843865499.137 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-09-02", "window": { "start": { "local": "2097-09-02T06:18:42+03:00", "utc": "2097-09-02T03:18:42Z", "ms": 4028930321656.4014 }, "end": { "local": "2097-09-02T06:18:42+03:00", "utc": "2097-09-02T03:18:42Z", "ms": 4028930321656.4014 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:08 on Sun 1 Sep to 14:22 on Mon 2 Sep.", "fact": "2097-09-01T14:07:36Z → 2097-09-02T11:22:02Z" }, { "step": "kaala", "text": "Sunrise is at 06:18 on the 1st and 06:19 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 29001 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Ankara, 2097: Monday 2 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": "2097-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-02", "confidence": "determinate" } ], "quote": "In Ankara, Ajā Ekādaśī 2097 falls on Monday 2 September. Ekādaśī runs from 17:08 on Sun 1 Sep to 14:22 on Mon 2 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-09-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-09-03", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27955, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-09-03T11:30:06+03:00", "utc": "2097-09-03T08:30:06Z", "ms": 4029035405715.4775 }, "end": { "local": "2097-09-04T08:39:19+03:00", "utc": "2097-09-04T05:39:19Z", "ms": 4029111559250.855 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-03T11:30:06+03:00", "utc": "2097-09-03T08:30:06Z", "ms": 4029035405715.4775 }, "end": { "local": "2097-09-04T08:39:19+03:00", "utc": "2097-09-04T05:39:19Z", "ms": 4029111559250.855 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-09-03", "window": { "start": { "local": "2097-09-03T19:16:00+03:00", "utc": "2097-09-03T16:16:00Z", "ms": 4029063360220.7983 }, "end": { "local": "2097-09-03T20:44:37+03:00", "utc": "2097-09-03T17:44:37Z", "ms": 4029068676713.2964 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "2097-09-04", "window": { "start": { "local": "2097-09-04T19:14:24+03:00", "utc": "2097-09-04T16:14:24Z", "ms": 4029149664148.5884 }, "end": { "local": "2097-09-04T20:43:21+03:00", "utc": "2097-09-04T17:43:21Z", "ms": 4029155000930.8916 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:30 on Tue 3 Sep to 08:39 on Wed 4 Sep.", "fact": "2097-09-03T08:30:06Z → 2097-09-04T05:39:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:16–20:45 on the 3rd, 19:14–20:43 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 89 of 89 minutes on the 3rd and 0 of 89 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27955 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Tuesday 3 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": "2097-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-03", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Tuesday 3 September. Trayodaśī runs from 11:30 on Tue 3 Sep to 08:39 on Wed 4 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-09-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33290, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-09-04T08:39:19+03:00", "utc": "2097-09-04T05:39:19Z", "ms": 4029111559250.855 }, "end": { "local": "2097-09-05T05:58:11+03:00", "utc": "2097-09-05T02:58:11Z", "ms": 4029188290747.194 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-04T08:39:19+03:00", "utc": "2097-09-04T05:39:19Z", "ms": 4029111559250.855 }, "end": { "local": "2097-09-05T05:58:11+03:00", "utc": "2097-09-05T02:58:11Z", "ms": 4029188290747.194 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-09-03", "window": { "start": { "local": "2097-09-03T19:16:00+03:00", "utc": "2097-09-03T16:16:00Z", "ms": 4029063360220.7983 }, "end": { "local": "2097-09-03T20:44:37+03:00", "utc": "2097-09-03T17:44:37Z", "ms": 4029068676713.2964 } }, "covered_min": 0, "window_min": 89, "qualifies": false }, { "local_date": "2097-09-04", "window": { "start": { "local": "2097-09-04T19:14:24+03:00", "utc": "2097-09-04T16:14:24Z", "ms": 4029149664148.5884 }, "end": { "local": "2097-09-04T20:43:21+03:00", "utc": "2097-09-04T17:43:21Z", "ms": 4029155000930.8916 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:39 on Wed 4 Sep to 05:58 on Thu 5 Sep.", "fact": "2097-09-04T05:39:19Z → 2097-09-05T02:58:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:16–20:45 on the 3rd, 19:14–20:43 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 89 minutes on the 3rd and 89 of 89 on the 4th.", "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 33290 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Ankara, 2097: Wednesday 4 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-04", "confidence": "determinate" } ], "quote": "In Ankara, Aghora Caturdaśī 2097 falls on Wednesday 4 September. Caturdaśī runs from 08:39 on Wed 4 Sep to 05:58 on Thu 5 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/shivaratri?on=2097-09-04", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17174, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-09-04T08:39:19+03:00", "utc": "2097-09-04T05:39:19Z", "ms": 4029111559250.855 }, "end": { "local": "2097-09-05T05:58:11+03:00", "utc": "2097-09-05T02:58:11Z", "ms": 4029188290747.194 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-04T08:39:19+03:00", "utc": "2097-09-04T05:39:19Z", "ms": 4029111559250.855 }, "end": { "local": "2097-09-05T05:58:11+03:00", "utc": "2097-09-05T02:58:11Z", "ms": 4029188290747.194 } }, "kaala": "nishita", "days": [ { "local_date": "2097-09-03", "window": { "start": { "local": "2097-09-04T00:24:17+03:00", "utc": "2097-09-03T21:24:17Z", "ms": 4029081857067.666 }, "end": { "local": "2097-09-04T01:12:17+03:00", "utc": "2097-09-03T22:12:17Z", "ms": 4029084737067.666 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-09-04", "window": { "start": { "local": "2097-09-05T00:23:57+03:00", "utc": "2097-09-04T21:23:57Z", "ms": 4029168237082.2256 }, "end": { "local": "2097-09-05T01:11:57+03:00", "utc": "2097-09-04T22:11:57Z", "ms": 4029171117082.2256 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:39 on Wed 4 Sep to 05:58 on Thu 5 Sep.", "fact": "2097-09-04T05:39:19Z → 2097-09-05T02:58:11Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:24–01:12 on the 3rd, 00:24–01:12 on the 4th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17174 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Wednesday 4 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": "2097-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-04", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Wednesday 4 September. Caturdaśī runs from 08:39 on Wed 4 Sep to 05:58 on Thu 5 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-09-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31633, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2097-09-06T03:35:35+03:00", "utc": "2097-09-06T00:35:35Z", "ms": 4029266135003.373 }, "end": { "local": "2097-09-07T01:40:19+03:00", "utc": "2097-09-06T22:40:19Z", "ms": 4029345619058.385 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-06T03:35:35+03:00", "utc": "2097-09-06T00:35:35Z", "ms": 4029266135003.373 }, "end": { "local": "2097-09-07T01:40:19+03:00", "utc": "2097-09-06T22:40:19Z", "ms": 4029345619058.385 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-09-06", "window": { "start": { "local": "2097-09-06T12:22:48+03:00", "utc": "2097-09-06T09:22:48Z", "ms": 4029297768436.176 }, "end": { "local": "2097-09-06T13:10:48+03:00", "utc": "2097-09-06T10:10:48Z", "ms": 4029300648436.176 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-09-07", "window": { "start": { "local": "2097-09-07T12:22:28+03:00", "utc": "2097-09-07T09:22:28Z", "ms": 4029384147844.3794 }, "end": { "local": "2097-09-07T13:10:28+03:00", "utc": "2097-09-07T10:10:28Z", "ms": 4029387027844.3794 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 03:36 on Fri 6 Sep to 01:40 on Sat 7 Sep.", "fact": "2097-09-06T00:35:35Z → 2097-09-06T22:40:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 6th, 12:22–13:10 on the 7th.", "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 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31633 s" }, { "step": "ruling", "text": "Rudra Vrata, Ankara, 2097: Friday 6 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-06", "confidence": "determinate" } ], "quote": "In Ankara, Rudra Vrata 2097 falls on Friday 6 September. Pratipadā runs from 03:36 on Fri 6 Sep to 01:40 on Sat 7 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37903, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2097-09-08T00:20:19+03:00", "utc": "2097-09-07T21:20:19Z", "ms": 4029427219404.4014 }, "end": { "local": "2097-09-08T23:41:50+03:00", "utc": "2097-09-08T20:41:50Z", "ms": 4029511309758.2764 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-08T00:20:19+03:00", "utc": "2097-09-07T21:20:19Z", "ms": 4029427219404.4014 }, "end": { "local": "2097-09-08T23:41:50+03:00", "utc": "2097-09-08T20:41:50Z", "ms": 4029511309758.2764 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-09-07", "window": { "start": { "local": "2097-09-07T12:22:28+03:00", "utc": "2097-09-07T09:22:28Z", "ms": 4029384147844.3794 }, "end": { "local": "2097-09-07T13:10:28+03:00", "utc": "2097-09-07T10:10:28Z", "ms": 4029387027844.3794 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-09-08", "window": { "start": { "local": "2097-09-08T12:22:07+03:00", "utc": "2097-09-08T09:22:07Z", "ms": 4029470527075.773 }, "end": { "local": "2097-09-08T13:10:07+03:00", "utc": "2097-09-08T10:10:07Z", "ms": 4029473407075.773 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 00:20 on Sun 8 Sep to 23:42 on Sun 8 Sep.", "fact": "2097-09-07T21:20:19Z → 2097-09-08T20:41:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 7th, 12:22–13:10 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37903 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Ankara, 2097: Sunday 8 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "haritalika-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-08", "confidence": "determinate" } ], "quote": "In Ankara, Haritālikā Vrata (Hartalika Teej) 2097 falls on Sunday 8 September. Tṛtīyā runs from 00:20 on Sun 8 Sep to 23:42 on Sun 8 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37903, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-09-08T23:41:50+03:00", "utc": "2097-09-08T20:41:50Z", "ms": 4029511309758.2764 }, "end": { "local": "2097-09-09T23:48:21+03:00", "utc": "2097-09-09T20:48:21Z", "ms": 4029598101406.965 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-08T23:41:50+03:00", "utc": "2097-09-08T20:41:50Z", "ms": 4029511309758.2764 }, "end": { "local": "2097-09-09T23:48:21+03:00", "utc": "2097-09-09T20:48:21Z", "ms": 4029598101406.965 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-09-08", "window": { "start": { "local": "2097-09-08T12:22:07+03:00", "utc": "2097-09-08T09:22:07Z", "ms": 4029470527075.773 }, "end": { "local": "2097-09-08T13:10:07+03:00", "utc": "2097-09-08T10:10:07Z", "ms": 4029473407075.773 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-09-09", "window": { "start": { "local": "2097-09-09T12:21:46+03:00", "utc": "2097-09-09T09:21:46Z", "ms": 4029556906145.8706 }, "end": { "local": "2097-09-09T13:09:46+03:00", "utc": "2097-09-09T10:09:46Z", "ms": 4029559786145.8706 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:42 on Sun 8 Sep to 23:48 on Mon 9 Sep.", "fact": "2097-09-08T20:41:50Z → 2097-09-09T20:48:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 8th, 12:22–13:10 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 37903 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Ankara, 2097: Monday 9 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-09", "confidence": "determinate" } ], "quote": "In Ankara, Gaṇeśa Caturthī 2097 falls on Monday 9 September. Caturthī runs from 23:42 on Sun 8 Sep to 23:48 on Mon 9 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38315, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2097-09-09T23:48:21+03:00", "utc": "2097-09-09T20:48:21Z", "ms": 4029598101406.965 }, "end": { "local": "2097-09-11T00:39:45+03:00", "utc": "2097-09-10T21:39:45Z", "ms": 4029687584538.7446 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-09T23:48:21+03:00", "utc": "2097-09-09T20:48:21Z", "ms": 4029598101406.965 }, "end": { "local": "2097-09-11T00:39:45+03:00", "utc": "2097-09-10T21:39:45Z", "ms": 4029687584538.7446 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-09-09", "window": { "start": { "local": "2097-09-09T12:21:46+03:00", "utc": "2097-09-09T09:21:46Z", "ms": 4029556906145.8706 }, "end": { "local": "2097-09-09T13:09:46+03:00", "utc": "2097-09-09T10:09:46Z", "ms": 4029559786145.8706 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-09-10", "window": { "start": { "local": "2097-09-10T12:21:25+03:00", "utc": "2097-09-10T09:21:25Z", "ms": 4029643285071.1113 }, "end": { "local": "2097-09-10T13:09:25+03:00", "utc": "2097-09-10T10:09:25Z", "ms": 4029646165071.1113 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 23:48 on Mon 9 Sep to 00:40 on Wed 11 Sep.", "fact": "2097-09-09T20:48:21Z → 2097-09-10T21:39:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 9th, 12:21–13:09 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 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: disputed → only-day · margin 38315 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Ankara, 2097: Tuesday 10 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rishi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day" } ], "kaala": "madhyahna", "priority": "disputed", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-10", "confidence": "determinate" } ], "quote": "In Ankara, Ṛṣi Pañcamī 2097 falls on Tuesday 10 September. Pañcamī runs from 23:48 on Mon 9 Sep to 00:40 on Wed 11 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36555, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2097-09-11T00:39:45+03:00", "utc": "2097-09-10T21:39:45Z", "ms": 4029687584538.7446 }, "end": { "local": "2097-09-12T02:11:27+03:00", "utc": "2097-09-11T23:11:27Z", "ms": 4029779487072.9062 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-11T00:39:45+03:00", "utc": "2097-09-10T21:39:45Z", "ms": 4029687584538.7446 }, "end": { "local": "2097-09-12T02:11:27+03:00", "utc": "2097-09-11T23:11:27Z", "ms": 4029779487072.9062 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-09-11", "window": { "start": { "local": "2097-09-11T12:21:04+03:00", "utc": "2097-09-11T09:21:04Z", "ms": 4029729663868.8135 }, "end": { "local": "2097-09-11T13:09:04+03:00", "utc": "2097-09-11T10:09:04Z", "ms": 4029732543868.8135 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-09-12", "window": { "start": { "local": "2097-09-12T12:20:43+03:00", "utc": "2097-09-12T09:20:43Z", "ms": 4029816042557.076 }, "end": { "local": "2097-09-12T13:08:43+03:00", "utc": "2097-09-12T10:08:43Z", "ms": 4029818922557.076 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 00:40 on Wed 11 Sep to 02:11 on Thu 12 Sep.", "fact": "2097-09-10T21:39:45Z → 2097-09-11T23:11:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 11th, 12:21–13:09 on the 12th.", "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 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36555 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Ankara, 2097: Wednesday 11 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi-bhadrapada", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Surya sasthi (paraviddha), Lolarka sasthi" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-11", "confidence": "determinate" } ], "quote": "In Ankara, Sūrya Ṣaṣṭhī (Bhādrapada) 2097 falls on Wednesday 11 September. Ṣaṣṭhī runs from 00:40 on Wed 11 Sep to 02:11 on Thu 12 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29149, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2097-09-12T02:11:27+03:00", "utc": "2097-09-11T23:11:27Z", "ms": 4029779487072.9062 }, "end": { "local": "2097-09-13T04:14:33+03:00", "utc": "2097-09-13T01:14:33Z", "ms": 4029873272513.499 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-12T02:11:27+03:00", "utc": "2097-09-11T23:11:27Z", "ms": 4029779487072.9062 }, "end": { "local": "2097-09-13T04:14:33+03:00", "utc": "2097-09-13T01:14:33Z", "ms": 4029873272513.499 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-09-12", "window": { "start": { "local": "2097-09-12T12:20:43+03:00", "utc": "2097-09-12T09:20:43Z", "ms": 4029816042557.076 }, "end": { "local": "2097-09-12T13:08:43+03:00", "utc": "2097-09-12T10:08:43Z", "ms": 4029818922557.076 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-09-13", "window": { "start": { "local": "2097-09-13T12:20:21+03:00", "utc": "2097-09-13T09:20:21Z", "ms": 4029902421154.7627 }, "end": { "local": "2097-09-13T13:08:21+03:00", "utc": "2097-09-13T10:08:21Z", "ms": 4029905301154.7627 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:11 on Thu 12 Sep to 04:15 on Fri 13 Sep.", "fact": "2097-09-11T23:11:27Z → 2097-09-13T01:14:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 12th, 12:20–13:08 on the 13th.", "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 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 29149 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Ankara, 2097: Thursday 12 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "muktabharana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Muktabharana vrata (purvaviddha), Lalita saptami (Bengal & Orissa)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-12", "confidence": "determinate" } ], "quote": "In Ankara, Muktābharaṇa Vrata 2097 falls on Thursday 12 September. Saptamī runs from 02:11 on Thu 12 Sep to 04:15 on Fri 13 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20607, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-09-13T04:14:33+03:00", "utc": "2097-09-13T01:14:33Z", "ms": 4029873272513.499 }, "end": { "local": "2097-09-14T06:36:33+03:00", "utc": "2097-09-14T03:36:33Z", "ms": 4029968193162.711 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-13T04:14:33+03:00", "utc": "2097-09-13T01:14:33Z", "ms": 4029873272513.499 }, "end": { "local": "2097-09-14T06:36:33+03:00", "utc": "2097-09-14T03:36:33Z", "ms": 4029968193162.711 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-09-13", "window": { "start": { "local": "2097-09-13T12:20:21+03:00", "utc": "2097-09-13T09:20:21Z", "ms": 4029902421154.7627 }, "end": { "local": "2097-09-13T13:08:21+03:00", "utc": "2097-09-13T10:08:21Z", "ms": 4029905301154.7627 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-09-14", "window": { "start": { "local": "2097-09-14T12:20:00+03:00", "utc": "2097-09-14T09:20:00Z", "ms": 4029988799681.3584 }, "end": { "local": "2097-09-14T13:08:00+03:00", "utc": "2097-09-14T10:08:00Z", "ms": 4029991679681.3584 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:15 on Fri 13 Sep to 06:37 on Sat 14 Sep.", "fact": "2097-09-13T01:14:33Z → 2097-09-14T03:36:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 13th, 12:20–13:08 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20607 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Ankara, 2097: Friday 13 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "radhashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)" } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-13", "confidence": "determinate" } ], "quote": "In Ankara, Rādhāṣṭamī 2097 falls on Friday 13 September. Aṣṭamī runs from 04:15 on Fri 13 Sep to 06:37 on Sat 14 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-09-17", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17350, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-09-16T11:20:56+03:00", "utc": "2097-09-16T08:20:56Z", "ms": 4030158056301.908 }, "end": { "local": "2097-09-17T13:18:12+03:00", "utc": "2097-09-17T10:18:12Z", "ms": 4030251492453.2876 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-16T11:20:56+03:00", "utc": "2097-09-16T08:20:56Z", "ms": 4030158056301.908 }, "end": { "local": "2097-09-17T13:18:12+03:00", "utc": "2097-09-17T10:18:12Z", "ms": 4030251492453.2876 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-09-16", "window": { "start": { "local": "2097-09-16T06:31:47+03:00", "utc": "2097-09-16T03:31:47Z", "ms": 4030140706753.9106 }, "end": { "local": "2097-09-16T06:31:47+03:00", "utc": "2097-09-16T03:31:47Z", "ms": 4030140706753.9106 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-09-17", "window": { "start": { "local": "2097-09-17T06:32:43+03:00", "utc": "2097-09-17T03:32:43Z", "ms": 4030227162961.1826 }, "end": { "local": "2097-09-17T06:32:43+03:00", "utc": "2097-09-17T03:32:43Z", "ms": 4030227162961.1826 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:21 on Mon 16 Sep to 13:18 on Tue 17 Sep.", "fact": "2097-09-16T08:20:56Z → 2097-09-17T10:18:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:32 on the 16th and 06:33 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 17350 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Ankara, 2097: Tuesday 17 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": "2097-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-17", "confidence": "determinate" } ], "quote": "In Ankara, Parivartanī Ekādaśī 2097 falls on Tuesday 17 September. Ekādaśī runs from 11:21 on Mon 16 Sep to 13:18 on Tue 17 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-09-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 677, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2097-09-17T13:18:12+03:00", "utc": "2097-09-17T10:18:12Z", "ms": 4030251492453.2876 }, "end": { "local": "2097-09-18T14:47:19+03:00", "utc": "2097-09-18T11:47:19Z", "ms": 4030343239421.258 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-17T13:18:12+03:00", "utc": "2097-09-17T10:18:12Z", "ms": 4030251492453.2876 }, "end": { "local": "2097-09-18T14:47:19+03:00", "utc": "2097-09-18T11:47:19Z", "ms": 4030343239421.258 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-09-17", "window": { "start": { "local": "2097-09-17T12:18:55+03:00", "utc": "2097-09-17T09:18:55Z", "ms": 4030247935037.4893 }, "end": { "local": "2097-09-17T13:06:55+03:00", "utc": "2097-09-17T10:06:55Z", "ms": 4030250815037.4893 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-09-18", "window": { "start": { "local": "2097-09-18T12:18:33+03:00", "utc": "2097-09-18T09:18:33Z", "ms": 4030334313485.301 }, "end": { "local": "2097-09-18T13:06:33+03:00", "utc": "2097-09-18T10:06:33Z", "ms": 4030337193485.301 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 13:18 on Tue 17 Sep to 14:47 on Wed 18 Sep.", "fact": "2097-09-17T10:18:12Z → 2097-09-18T11:47:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 17th, 12:19–13:07 on the 18th.", "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 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 677 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Ankara, 2097: Wednesday 18 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vamana-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-18", "confidence": "boundary" } ], "quote": "In Ankara, Vāmana Jayantī 2097 falls on Wednesday 18 September. Dvādaśī runs from 13:18 on Tue 17 Sep to 14:47 on Wed 18 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pradosha-vrata?on=2097-09-18", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11127, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-09-18T14:47:19+03:00", "utc": "2097-09-18T11:47:19Z", "ms": 4030343239421.258 }, "end": { "local": "2097-09-19T15:44:21+03:00", "utc": "2097-09-19T12:44:21Z", "ms": 4030433061385.482 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-18T14:47:19+03:00", "utc": "2097-09-18T11:47:19Z", "ms": 4030343239421.258 }, "end": { "local": "2097-09-19T15:44:21+03:00", "utc": "2097-09-19T12:44:21Z", "ms": 4030433061385.482 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-09-18", "window": { "start": { "local": "2097-09-18T18:51:28+03:00", "utc": "2097-09-18T15:51:28Z", "ms": 4030357887734.2446 }, "end": { "local": "2097-09-18T20:25:13+03:00", "utc": "2097-09-18T17:25:13Z", "ms": 4030363512782.082 } }, "covered_min": 94, "window_min": 94, "qualifies": true }, { "local_date": "2097-09-19", "window": { "start": { "local": "2097-09-19T18:49:48+03:00", "utc": "2097-09-19T15:49:48Z", "ms": 4030444188341.9736 }, "end": { "local": "2097-09-19T20:23:54+03:00", "utc": "2097-09-19T17:23:54Z", "ms": 4030449834169.1475 } }, "covered_min": 0, "window_min": 94, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:47 on Wed 18 Sep to 15:44 on Thu 19 Sep.", "fact": "2097-09-18T11:47:19Z → 2097-09-19T12:44:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:25 on the 18th, 18:50–20:24 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 94 of 94 minutes on the 18th and 0 of 94 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 11127 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Wednesday 18 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": "2097-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-18", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Wednesday 18 September. Trayodaśī runs from 14:47 on Wed 18 Sep to 15:44 on Thu 19 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-09-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24163, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-09-19T15:44:21+03:00", "utc": "2097-09-19T12:44:21Z", "ms": 4030433061385.482 }, "end": { "local": "2097-09-20T16:08:42+03:00", "utc": "2097-09-20T13:08:42Z", "ms": 4030520921545.384 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2097-09-19T15:44:21+03:00", "utc": "2097-09-19T12:44:21Z", "ms": 4030433061385.482 }, "end": { "local": "2097-09-20T16:08:42+03:00", "utc": "2097-09-20T13:08:42Z", "ms": 4030520921545.384 } }, "kaala": "udaya-3", "days": [ { "local_date": "2097-09-19", "window": { "start": { "local": "2097-09-19T06:34:36+03:00", "utc": "2097-09-19T03:34:36Z", "ms": 4030400075593.0264 }, "end": { "local": "2097-09-19T09:01:38+03:00", "utc": "2097-09-19T06:01:38Z", "ms": 4030408898142.816 } }, "covered_min": 0, "window_min": 147, "qualifies": false }, { "local_date": "2097-09-20", "window": { "start": { "local": "2097-09-20T06:35:32+03:00", "utc": "2097-09-20T03:35:32Z", "ms": 4030486532045.778 }, "end": { "local": "2097-09-20T09:02:03+03:00", "utc": "2097-09-20T06:02:03Z", "ms": 4030495323430.192 } }, "covered_min": 147, "window_min": 147, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:44 on Thu 19 Sep to 16:09 on Fri 20 Sep.", "fact": "2097-09-19T12:44:21Z → 2097-09-20T13:08:42Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:35–09:02 on the 19th, 06:36–09:02 on the 20th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 0 of 147 minutes on the 19th and 147 of 147 on the 20th.", "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 24163 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Ankara, 2097: Friday 20 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": "2097-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-20", "confidence": "determinate" } ], "quote": "In Ankara, Ananta Caturdaśī 2097 falls on Friday 20 September. Caturdaśī runs from 15:44 on Thu 19 Sep to 16:09 on Fri 20 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-09-24", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25415, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-09-24T13:12:15+03:00", "utc": "2097-09-24T10:12:15Z", "ms": 4030855935037.137 }, "end": { "local": "2097-09-25T11:38:09+03:00", "utc": "2097-09-25T08:38:09Z", "ms": 4030936688798.767 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-09-24T13:12:15+03:00", "utc": "2097-09-24T10:12:15Z", "ms": 4030855935037.137 }, "end": { "local": "2097-09-25T11:38:09+03:00", "utc": "2097-09-25T08:38:09Z", "ms": 4030936688798.767 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-09-24", "window": { "start": { "local": "2097-09-24T20:15:50+03:00", "utc": "2097-09-24T17:15:50Z", "ms": 4030881350283.4487 }, "end": { "local": "2097-09-24T20:15:50+03:00", "utc": "2097-09-24T17:15:50Z", "ms": 4030881350283.4487 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-09-25", "window": { "start": { "local": "2097-09-25T20:48:27+03:00", "utc": "2097-09-25T17:48:27Z", "ms": 4030969706816.397 }, "end": { "local": "2097-09-25T20:48:27+03:00", "utc": "2097-09-25T17:48:27Z", "ms": 4030969706816.397 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:12 on Tue 24 Sep to 11:38 on Wed 25 Sep.", "fact": "2097-09-24T10:12:15Z → 2097-09-25T08:38:09Z" }, { "step": "kaala", "text": "Moonrise is at 20:16 on the 24th and 20:48 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 24th and is not on the 25th.", "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 25415 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Tuesday 24 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": "2097-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-24", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Tuesday 24 September. Caturthī runs from 13:12 on Tue 24 Sep to 11:38 on Wed 25 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37445, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2097-09-26T09:50:46+03:00", "utc": "2097-09-26T06:50:46Z", "ms": 4031016645900.418 }, "end": { "local": "2097-09-27T07:52:43+03:00", "utc": "2097-09-27T04:52:43Z", "ms": 4031095963452.51 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-09-26T09:50:46+03:00", "utc": "2097-09-26T06:50:46Z", "ms": 4031016645900.418 }, "end": { "local": "2097-09-27T07:52:43+03:00", "utc": "2097-09-27T04:52:43Z", "ms": 4031095963452.51 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-09-25", "window": { "start": { "local": "2097-09-25T20:48:27+03:00", "utc": "2097-09-25T17:48:27Z", "ms": 4030969706816.397 }, "end": { "local": "2097-09-25T20:48:27+03:00", "utc": "2097-09-25T17:48:27Z", "ms": 4030969706816.397 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-09-26", "window": { "start": { "local": "2097-09-26T21:28:38+03:00", "utc": "2097-09-26T18:28:38Z", "ms": 4031058517964.6777 }, "end": { "local": "2097-09-26T21:28:38+03:00", "utc": "2097-09-26T18:28:38Z", "ms": 4031058517964.6777 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:51 on Thu 26 Sep to 07:53 on Fri 27 Sep.", "fact": "2097-09-26T06:50:46Z → 2097-09-27T04:52:43Z" }, { "step": "kaala", "text": "Moonrise is at 20:48 on the 25th and 21:29 on the 26th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 25th and is on the 26th.", "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 37445 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Ankara, 2097: Thursday 26 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": "2097-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-26", "confidence": "determinate" } ], "quote": "In Ankara, Candra Ṣaṣṭhī 2097 falls on Thursday 26 September. Ṣaṣṭhī runs from 09:51 on Thu 26 Sep to 07:53 on Fri 27 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26528, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-09-28T05:46:25+03:00", "utc": "2097-09-28T02:46:25Z", "ms": 4031174785452.4033 }, "end": { "local": "2097-09-29T03:34:20+03:00", "utc": "2097-09-29T00:34:20Z", "ms": 4031253259959.6543 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-09-28T05:46:25+03:00", "utc": "2097-09-28T02:46:25Z", "ms": 4031174785452.4033 }, "end": { "local": "2097-09-29T03:34:20+03:00", "utc": "2097-09-29T00:34:20Z", "ms": 4031253259959.6543 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-09-27", "window": { "start": { "local": "2097-09-27T18:36:36+03:00", "utc": "2097-09-27T15:36:36Z", "ms": 4031134596461.743 }, "end": { "local": "2097-09-27T20:13:29+03:00", "utc": "2097-09-27T17:13:29Z", "ms": 4031140408812.514 } }, "covered_min": 0, "window_min": 97, "qualifies": false }, { "local_date": "2097-09-28", "window": { "start": { "local": "2097-09-28T18:34:58+03:00", "utc": "2097-09-28T15:34:58Z", "ms": 4031220898349.937 }, "end": { "local": "2097-09-28T20:12:12+03:00", "utc": "2097-09-28T17:12:12Z", "ms": 4031226731521.768 } }, "covered_min": 97, "window_min": 97, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:46 on Sat 28 Sep to 03:34 on Sun 29 Sep.", "fact": "2097-09-28T02:46:25Z → 2097-09-29T00:34:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:37–20:13 on the 27th, 18:35–20:12 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 0 of 97 minutes on the 27th and 97 of 97 on the 28th.", "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 26528 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Ankara, 2097: Saturday 28 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": "2097-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-28", "confidence": "determinate" } ], "quote": "In Ankara, Jitāṣṭamī (Jitiya) 2097 falls on Saturday 28 September. Aṣṭamī runs from 05:46 on Sat 28 Sep to 03:34 on Sun 29 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15290, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-09-28T05:46:25+03:00", "utc": "2097-09-28T02:46:25Z", "ms": 4031174785452.4033 }, "end": { "local": "2097-09-29T03:34:20+03:00", "utc": "2097-09-29T00:34:20Z", "ms": 4031253259959.6543 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-09-28T05:46:25+03:00", "utc": "2097-09-28T02:46:25Z", "ms": 4031174785452.4033 }, "end": { "local": "2097-09-29T03:34:20+03:00", "utc": "2097-09-29T00:34:20Z", "ms": 4031253259959.6543 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-09-27", "window": { "start": { "local": "2097-09-27T22:18:41+03:00", "utc": "2097-09-27T19:18:41Z", "ms": 4031147921050.764 }, "end": { "local": "2097-09-27T22:18:41+03:00", "utc": "2097-09-27T19:18:41Z", "ms": 4031147921050.764 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-09-28", "window": { "start": { "local": "2097-09-28T23:19:30+03:00", "utc": "2097-09-28T20:19:30Z", "ms": 4031237969869.7803 }, "end": { "local": "2097-09-28T23:19:30+03:00", "utc": "2097-09-28T20:19:30Z", "ms": 4031237969869.7803 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:46 on Sat 28 Sep to 03:34 on Sun 29 Sep.", "fact": "2097-09-28T02:46:25Z → 2097-09-29T00:34:20Z" }, { "step": "kaala", "text": "Moonrise is at 22:19 on the 27th and 23:19 on the 28th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 27th and is on the 28th.", "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 15290 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Ankara, 2097: Saturday 28 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": "2097-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-09-28", "confidence": "determinate" } ], "quote": "In Ankara, Mahālakṣmī Vrata Samāpana 2097 falls on Saturday 28 September. Aṣṭamī runs from 05:46 on Sat 28 Sep to 03:34 on Sun 29 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-10-01", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27682, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-09-30T23:04:42+03:00", "utc": "2097-09-30T20:04:42Z", "ms": 4031409881710.6274 }, "end": { "local": "2097-10-01T20:54:45+03:00", "utc": "2097-10-01T17:54:45Z", "ms": 4031488484858.819 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-09-30T23:04:42+03:00", "utc": "2097-09-30T20:04:42Z", "ms": 4031409881710.6274 }, "end": { "local": "2097-10-01T20:54:45+03:00", "utc": "2097-10-01T17:54:45Z", "ms": 4031488484858.819 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-10-01", "window": { "start": { "local": "2097-10-01T06:46:04+03:00", "utc": "2097-10-01T03:46:04Z", "ms": 4031437563976.157 }, "end": { "local": "2097-10-01T06:46:04+03:00", "utc": "2097-10-01T03:46:04Z", "ms": 4031437563976.157 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-10-02", "window": { "start": { "local": "2097-10-02T06:47:03+03:00", "utc": "2097-10-02T03:47:03Z", "ms": 4031524022782.591 }, "end": { "local": "2097-10-02T06:47:03+03:00", "utc": "2097-10-02T03:47:03Z", "ms": 4031524022782.591 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:05 on Mon 30 Sep to 20:55 on Tue 1 Oct.", "fact": "2097-09-30T20:04:42Z → 2097-10-01T17:54:45Z" }, { "step": "kaala", "text": "Sunrise is at 06:46 on the 1st and 06:47 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27682 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Ankara, 2097: Tuesday 1 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": "2097-10-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-01", "confidence": "determinate" } ], "quote": "In Ankara, Indirā Ekādaśī 2097 falls on Tuesday 1 October. Ekādaśī runs from 23:05 on Mon 30 Sep to 20:55 on Tue 1 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-10-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-10-02", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1552, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-10-02T18:54:21+03:00", "utc": "2097-10-02T15:54:21Z", "ms": 4031567661000.9893 }, "end": { "local": "2097-10-03T17:09:02+03:00", "utc": "2097-10-03T14:09:02Z", "ms": 4031647741964.6743 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-02T18:54:21+03:00", "utc": "2097-10-02T15:54:21Z", "ms": 4031567661000.9893 }, "end": { "local": "2097-10-03T17:09:02+03:00", "utc": "2097-10-03T14:09:02Z", "ms": 4031647741964.6743 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-10-02", "window": { "start": { "local": "2097-10-02T18:28:29+03:00", "utc": "2097-10-02T15:28:29Z", "ms": 4031566109176.092 }, "end": { "local": "2097-10-02T20:07:06+03:00", "utc": "2097-10-02T17:07:06Z", "ms": 4031572025533.3325 } }, "covered_min": 73, "window_min": 99, "qualifies": true }, { "local_date": "2097-10-03", "window": { "start": { "local": "2097-10-03T18:26:53+03:00", "utc": "2097-10-03T15:26:53Z", "ms": 4031652412848.7646 }, "end": { "local": "2097-10-03T20:05:50+03:00", "utc": "2097-10-03T17:05:50Z", "ms": 4031658349962.1646 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:54 on Wed 2 Oct to 17:09 on Thu 3 Oct.", "fact": "2097-10-02T15:54:21Z → 2097-10-03T14:09:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–20:07 on the 2nd, 18:27–20:06 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 73 of 99 minutes on the 2nd and 0 of 99 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1552 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Wednesday 2 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": "2097-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-02", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Wednesday 2 October. Trayodaśī runs from 18:54 on Wed 2 Oct to 17:09 on Thu 3 Oct and covers 73 of 99 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-10-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-10-03", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25495, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-10-03T17:09:02+03:00", "utc": "2097-10-03T14:09:02Z", "ms": 4031647741964.6743 }, "end": { "local": "2097-10-04T15:44:41+03:00", "utc": "2097-10-04T12:44:41Z", "ms": 4031729080575.9966 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-03T17:09:02+03:00", "utc": "2097-10-03T14:09:02Z", "ms": 4031647741964.6743 }, "end": { "local": "2097-10-04T15:44:41+03:00", "utc": "2097-10-04T12:44:41Z", "ms": 4031729080575.9966 } }, "kaala": "nishita", "days": [ { "local_date": "2097-10-03", "window": { "start": { "local": "2097-10-04T00:13:57+03:00", "utc": "2097-10-03T21:13:57Z", "ms": 4031673237024.0146 }, "end": { "local": "2097-10-04T01:01:57+03:00", "utc": "2097-10-03T22:01:57Z", "ms": 4031676117024.0146 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-10-04", "window": { "start": { "local": "2097-10-05T00:13:39+03:00", "utc": "2097-10-04T21:13:39Z", "ms": 4031759618891.8066 }, "end": { "local": "2097-10-05T01:01:39+03:00", "utc": "2097-10-04T22:01:39Z", "ms": 4031762498891.8066 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:09 on Thu 3 Oct to 15:45 on Fri 4 Oct.", "fact": "2097-10-03T14:09:02Z → 2097-10-04T12:44:41Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:14–01:02 on the 3rd, 00:14–01:02 on the 4th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25495 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Thursday 3 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": "2097-10-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-03", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Thursday 3 October. Caturdaśī runs from 17:09 on Thu 3 Oct to 15:45 on Fri 4 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-10-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-05", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1281, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2097-10-04T15:44:41+03:00", "utc": "2097-10-04T12:44:41Z", "ms": 4031729080575.9966 }, "end": { "local": "2097-10-05T14:47:06+03:00", "utc": "2097-10-05T11:47:06Z", "ms": 4031812025983.095 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-04T15:44:41+03:00", "utc": "2097-10-04T12:44:41Z", "ms": 4031729080575.9966 }, "end": { "local": "2097-10-05T14:47:06+03:00", "utc": "2097-10-05T11:47:06Z", "ms": 4031812025983.095 } }, "kaala": "aparahna", "days": [ { "local_date": "2097-10-04", "window": { "start": { "local": "2097-10-04T13:46:47+03:00", "utc": "2097-10-04T10:46:47Z", "ms": 4031722006658.9673 }, "end": { "local": "2097-10-04T16:06:02+03:00", "utc": "2097-10-04T13:06:02Z", "ms": 4031730361812.2017 } }, "covered_min": 21, "window_min": 139, "qualifies": true }, { "local_date": "2097-10-05", "window": { "start": { "local": "2097-10-05T13:46:13+03:00", "utc": "2097-10-05T10:46:13Z", "ms": 4031808373259.989 }, "end": { "local": "2097-10-05T16:04:57+03:00", "utc": "2097-10-05T13:04:57Z", "ms": 4031816697407.2593 } }, "covered_min": 61, "window_min": 139, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 15:45 on Fri 4 Oct to 14:47 on Sat 5 Oct.", "fact": "2097-10-04T12:44:41Z → 2097-10-05T11:47:06Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:47–16:06 on the 4th, 13:46–16:05 on the 5th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 21 of 139 minutes on the 4th and 61 of 139 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1281 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Ankara, 2097: Saturday 5 October.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2097-10-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-05", "confidence": "boundary" } ], "quote": "In Ankara, Mahālaya Amāvāsyā 2097 falls on Saturday 5 October. Amāvasyā runs from 15:45 on Fri 4 Oct to 14:47 on Sat 5 Oct and covers 61 of 139 minutes of aparāhṇa that afternoon. It also reaches the previous afternoon for 21 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/ankara/festivals/2097/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": "/ankara/festivals/2097/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4856, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2097-10-05T14:47:06+03:00", "utc": "2097-10-05T11:47:06Z", "ms": 4031812025983.095 }, "end": { "local": "2097-10-06T14:21:30+03:00", "utc": "2097-10-06T11:21:30Z", "ms": 4031896889838.476 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-05T14:47:06+03:00", "utc": "2097-10-05T11:47:06Z", "ms": 4031812025983.095 }, "end": { "local": "2097-10-06T14:21:30+03:00", "utc": "2097-10-06T11:21:30Z", "ms": 4031896889838.476 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-10-05", "window": { "start": { "local": "2097-10-05T12:12:51+03:00", "utc": "2097-10-05T09:12:51Z", "ms": 4031802771186.3535 }, "end": { "local": "2097-10-05T13:00:51+03:00", "utc": "2097-10-05T10:00:51Z", "ms": 4031805651186.3535 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-10-06", "window": { "start": { "local": "2097-10-06T12:12:34+03:00", "utc": "2097-10-06T09:12:34Z", "ms": 4031889153680.1436 }, "end": { "local": "2097-10-06T13:00:34+03:00", "utc": "2097-10-06T10:00:34Z", "ms": 4031892033680.1436 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 14:47 on Sat 5 Oct to 14:21 on Sun 6 Oct.", "fact": "2097-10-05T11:47:06Z → 2097-10-06T11:21:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 5th, 12:13–13:01 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4856 s" }, { "step": "ruling", "text": "Navarātrārambha, Ankara, 2097: Sunday 6 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": "2097-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-06", "confidence": "determinate" } ], "quote": "In Ankara, Navarātrārambha (Navratri) 2097 falls on Sunday 6 October. Pratipadā runs from 14:47 on Sat 5 Oct to 14:21 on Sun 6 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-10-09", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8367, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-10-08T15:19:27+03:00", "utc": "2097-10-08T12:19:27Z", "ms": 4032073167172.772 }, "end": { "local": "2097-10-09T16:43:21+03:00", "utc": "2097-10-09T13:43:21Z", "ms": 4032164601094.2173 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-08T15:19:27+03:00", "utc": "2097-10-08T12:19:27Z", "ms": 4032073167172.772 }, "end": { "local": "2097-10-09T16:43:21+03:00", "utc": "2097-10-09T13:43:21Z", "ms": 4032164601094.2173 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-10-08", "window": { "start": { "local": "2097-10-08T12:12:00+03:00", "utc": "2097-10-08T09:12:00Z", "ms": 4032061919901.703 }, "end": { "local": "2097-10-08T13:00:00+03:00", "utc": "2097-10-08T10:00:00Z", "ms": 4032064799901.703 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-10-09", "window": { "start": { "local": "2097-10-09T12:11:44+03:00", "utc": "2097-10-09T09:11:44Z", "ms": 4032148303662.3726 }, "end": { "local": "2097-10-09T12:59:44+03:00", "utc": "2097-10-09T09:59:44Z", "ms": 4032151183662.3726 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:19 on Tue 8 Oct to 16:43 on Wed 9 Oct.", "fact": "2097-10-08T12:19:27Z → 2097-10-09T13:43:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 8th, 12:12–13:00 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8367 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Wednesday 9 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": "2097-10-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-09", "confidence": "determinate" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Wednesday 9 October. Caturthī runs from 15:19 on Tue 8 Oct to 16:43 on Wed 9 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-10-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27262, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2097-10-11T20:55:53+03:00", "utc": "2097-10-11T17:55:53Z", "ms": 4032352553051.9307 }, "end": { "local": "2097-10-12T23:23:46+03:00", "utc": "2097-10-12T20:23:46Z", "ms": 4032447825668.9136 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-11T20:55:53+03:00", "utc": "2097-10-11T17:55:53Z", "ms": 4032352553051.9307 }, "end": { "local": "2097-10-12T23:23:46+03:00", "utc": "2097-10-12T20:23:46Z", "ms": 4032447825668.9136 } }, "kaala": "udaya-1", "days": [ { "local_date": "2097-10-12", "window": { "start": { "local": "2097-10-12T06:57:06+03:00", "utc": "2097-10-12T03:57:06Z", "ms": 4032388626118.377 }, "end": { "local": "2097-10-12T07:42:09+03:00", "utc": "2097-10-12T04:42:09Z", "ms": 4032391329002.273 } }, "covered_min": 45, "window_min": 45, "qualifies": true }, { "local_date": "2097-10-13", "window": { "start": { "local": "2097-10-13T06:58:08+03:00", "utc": "2097-10-13T03:58:08Z", "ms": 4032475088049.3887 }, "end": { "local": "2097-10-13T07:43:01+03:00", "utc": "2097-10-13T04:43:01Z", "ms": 4032477780767.4985 } }, "covered_min": 0, "window_min": 45, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:56 on Fri 11 Oct to 23:24 on Sat 12 Oct.", "fact": "2097-10-11T17:55:53Z → 2097-10-12T20:23:46Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:57–07:42 on the 12th, 06:58–07:43 on the 13th.", "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 45 of 45 minutes on the 12th and 0 of 45 on the 13th.", "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 27262 s" }, { "step": "ruling", "text": "Durgā Saptamī, Ankara, 2097: Saturday 12 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": "2097-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-12", "confidence": "determinate" } ], "quote": "In Ankara, Durgā Saptamī 2097 falls on Saturday 12 October. Saptamī runs from 20:56 on Fri 11 Oct to 23:24 on Sat 12 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37329, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-10-12T23:23:46+03:00", "utc": "2097-10-12T20:23:46Z", "ms": 4032447825668.9136 }, "end": { "local": "2097-10-14T01:48:21+03:00", "utc": "2097-10-13T22:48:21Z", "ms": 4032542900604.094 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-12T23:23:46+03:00", "utc": "2097-10-12T20:23:46Z", "ms": 4032447825668.9136 }, "end": { "local": "2097-10-14T01:48:21+03:00", "utc": "2097-10-13T22:48:21Z", "ms": 4032542900604.094 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-10-13", "window": { "start": { "local": "2097-10-13T12:10:43+03:00", "utc": "2097-10-13T09:10:43Z", "ms": 4032493843435.212 }, "end": { "local": "2097-10-13T12:58:43+03:00", "utc": "2097-10-13T09:58:43Z", "ms": 4032496723435.212 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-10-14", "window": { "start": { "local": "2097-10-14T12:10:30+03:00", "utc": "2097-10-14T09:10:30Z", "ms": 4032580229648.6777 }, "end": { "local": "2097-10-14T12:58:30+03:00", "utc": "2097-10-14T09:58:30Z", "ms": 4032583109648.6777 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 23:24 on Sat 12 Oct to 01:48 on Mon 14 Oct.", "fact": "2097-10-12T20:23:46Z → 2097-10-13T22:48:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:11–12:59 on the 13th, 12:10–12:58 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37329 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Ankara, 2097: Sunday 13 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": "2097-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-13", "confidence": "determinate" } ], "quote": "In Ankara, Mahāṣṭamī (Durga Ashtami) 2097 falls on Sunday 13 October. Aṣṭamī runs from 23:24 on Sat 12 Oct to 01:48 on Mon 14 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29649, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2097-10-14T01:48:21+03:00", "utc": "2097-10-13T22:48:21Z", "ms": 4032542900604.094 }, "end": { "local": "2097-10-15T03:56:08+03:00", "utc": "2097-10-15T00:56:08Z", "ms": 4032636967629.8726 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-14T01:48:21+03:00", "utc": "2097-10-13T22:48:21Z", "ms": 4032542900604.094 }, "end": { "local": "2097-10-15T03:56:08+03:00", "utc": "2097-10-15T00:56:08Z", "ms": 4032636967629.8726 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-10-14", "window": { "start": { "local": "2097-10-14T12:10:30+03:00", "utc": "2097-10-14T09:10:30Z", "ms": 4032580229648.6777 }, "end": { "local": "2097-10-14T12:58:30+03:00", "utc": "2097-10-14T09:58:30Z", "ms": 4032583109648.6777 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-10-15", "window": { "start": { "local": "2097-10-15T12:10:16+03:00", "utc": "2097-10-15T09:10:16Z", "ms": 4032666616406.002 }, "end": { "local": "2097-10-15T12:58:16+03:00", "utc": "2097-10-15T09:58:16Z", "ms": 4032669496406.002 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 01:48 on Mon 14 Oct to 03:56 on Tue 15 Oct.", "fact": "2097-10-13T22:48:21Z → 2097-10-15T00:56:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 14th, 12:10–12:58 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "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 29649 s" }, { "step": "ruling", "text": "Mahānavamī, Ankara, 2097: Monday 14 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": "2097-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-14", "confidence": "determinate" } ], "quote": "In Ankara, Mahānavamī 2097 falls on Monday 14 October. Navamī runs from 01:48 on Mon 14 Oct to 03:56 on Tue 15 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6161, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2097-10-15T03:56:08+03:00", "utc": "2097-10-15T00:56:08Z", "ms": 4032636967629.8726 }, "end": { "local": "2097-10-16T05:35:44+03:00", "utc": "2097-10-16T02:35:44Z", "ms": 4032729344237.461 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "2097-10-15T03:56:08+03:00", "utc": "2097-10-15T00:56:08Z", "ms": 4032636967629.8726 }, "end": { "local": "2097-10-15T19:51:01+03:00", "utc": "2097-10-15T16:51:01Z", "ms": 4032694260944.9565 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "2097-10-14T17:27:37+03:00", "utc": "2097-10-14T14:27:37Z", "ms": 4032599257077.794 }, "end": { "local": "2097-10-15T19:51:01+03:00", "utc": "2097-10-15T16:51:01Z", "ms": 4032694260944.9565 } } }, "kaala": "daytime", "days": [ { "local_date": "2097-10-14", "window": { "start": { "local": "2097-10-14T06:59:10+03:00", "utc": "2097-10-14T03:59:10Z", "ms": 4032561550282.626 }, "end": { "local": "2097-10-14T18:09:49+03:00", "utc": "2097-10-14T15:09:49Z", "ms": 4032601789014.7295 } }, "covered_min": 0, "window_min": 671, "qualifies": false }, { "local_date": "2097-10-15", "window": { "start": { "local": "2097-10-15T07:00:13+03:00", "utc": "2097-10-15T04:00:13Z", "ms": 4032648012820.854 }, "end": { "local": "2097-10-15T18:08:20+03:00", "utc": "2097-10-15T15:08:20Z", "ms": 4032688099991.15 } }, "covered_min": 668, "window_min": 668, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 03:56 on Tue 15 Oct to 05:36 on Wed 16 Oct, and Śravaṇa from 17:28 on Mon 14 Oct to 19:51 on Tue 15 Oct. They are together from 03:56 on Tue 15 Oct to 19:51 on Tue 15 Oct.", "fact": "2097-10-15T00:56:08Z → 2097-10-15T16:51:01Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:59–18:10 on the 14th, 07:00–18:08 on the 15th.", "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 671 minutes on the 14th and 668 of 668 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6161 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Ankara, 2097: Tuesday 15 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": "2097-10-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-15", "confidence": "determinate" } ], "quote": "In Ankara, Vijayā Daśamī (Dussehra) 2097 falls on Tuesday 15 October. Daśamī runs from 03:56 on Tue 15 Oct to 05:36 on Wed 16 Oct and is with Śravaṇa in the day time that day, for 668 minutes.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-10-16", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1383, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-10-16T05:35:44+03:00", "utc": "2097-10-16T02:35:44Z", "ms": 4032729344237.461 }, "end": { "local": "2097-10-17T06:39:16+03:00", "utc": "2097-10-17T03:39:16Z", "ms": 4032819555976.9824 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-16T05:35:44+03:00", "utc": "2097-10-16T02:35:44Z", "ms": 4032729344237.461 }, "end": { "local": "2097-10-17T06:39:16+03:00", "utc": "2097-10-17T03:39:16Z", "ms": 4032819555976.9824 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-10-16", "window": { "start": { "local": "2097-10-16T07:01:16+03:00", "utc": "2097-10-16T04:01:16Z", "ms": 4032734475666.7817 }, "end": { "local": "2097-10-16T07:01:16+03:00", "utc": "2097-10-16T04:01:16Z", "ms": 4032734475666.7817 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-10-17", "window": { "start": { "local": "2097-10-17T07:02:19+03:00", "utc": "2097-10-17T04:02:19Z", "ms": 4032820938823.142 }, "end": { "local": "2097-10-17T07:02:19+03:00", "utc": "2097-10-17T04:02:19Z", "ms": 4032820938823.142 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:36 on Wed 16 Oct to 06:39 on Thu 17 Oct.", "fact": "2097-10-16T02:35:44Z → 2097-10-17T03:39:16Z" }, { "step": "kaala", "text": "Sunrise is at 07:01 on the 16th and 07:02 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1383 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Ankara, 2097: Wednesday 16 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": "2097-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-16", "confidence": "determinate" } ], "quote": "In Ankara, Pāśāṅkuśā Ekādaśī 2097 falls on Wednesday 16 October. Ekādaśī runs from 05:36 on Wed 16 Oct to 06:39 on Thu 17 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-10-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-10-18", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39479, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-10-18T07:02:46+03:00", "utc": "2097-10-18T04:02:46Z", "ms": 4032907366260.149 }, "end": { "local": "2097-10-19T06:46:01+03:00", "utc": "2097-10-19T03:46:01Z", "ms": 4032992760836.6157 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2097-10-18T07:02:46+03:00", "utc": "2097-10-18T04:02:46Z", "ms": 4032907366260.149 }, "end": { "local": "2097-10-19T06:46:01+03:00", "utc": "2097-10-19T03:46:01Z", "ms": 4032992760836.6157 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-10-17", "window": { "start": { "local": "2097-10-17T18:05:24+03:00", "utc": "2097-10-17T15:05:24Z", "ms": 4032860724427.3154 }, "end": { "local": "2097-10-17T19:49:08+03:00", "utc": "2097-10-17T16:49:08Z", "ms": 4032866948142.713 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2097-10-18", "window": { "start": { "local": "2097-10-18T18:03:58+03:00", "utc": "2097-10-18T15:03:58Z", "ms": 4032947037955.699 }, "end": { "local": "2097-10-18T19:48:02+03:00", "utc": "2097-10-18T16:48:02Z", "ms": 4032953281705.4517 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:03 on Fri 18 Oct to 06:46 on Sat 19 Oct.", "fact": "2097-10-18T04:02:46Z → 2097-10-19T03:46:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:05–19:49 on the 17th, 18:04–19:48 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 104 minutes on the 17th and 104 of 104 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 39479 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Friday 18 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": "2097-10-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-18", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Friday 18 October. Trayodaśī runs from 07:03 on Fri 18 Oct to 06:46 on Sat 19 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-10-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-23", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3232, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-10-23T21:52:00+03:00", "utc": "2097-10-23T18:52:00Z", "ms": 4033392720144.28 }, "end": { "local": "2097-10-24T19:19:34+03:00", "utc": "2097-10-24T16:19:34Z", "ms": 4033469973786.1616 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-10-23T21:52:00+03:00", "utc": "2097-10-23T18:52:00Z", "ms": 4033392720144.28 }, "end": { "local": "2097-10-24T19:19:34+03:00", "utc": "2097-10-24T16:19:34Z", "ms": 4033469973786.1616 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-10-23", "window": { "start": { "local": "2097-10-23T19:25:42+03:00", "utc": "2097-10-23T16:25:42Z", "ms": 4033383942355.4824 }, "end": { "local": "2097-10-23T19:25:42+03:00", "utc": "2097-10-23T16:25:42Z", "ms": 4033383942355.4824 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-10-24", "window": { "start": { "local": "2097-10-24T20:13:26+03:00", "utc": "2097-10-24T17:13:26Z", "ms": 4033473206055.9595 }, "end": { "local": "2097-10-24T20:13:26+03:00", "utc": "2097-10-24T17:13:26Z", "ms": 4033473206055.9595 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:52 on Wed 23 Oct to 19:20 on Thu 24 Oct.", "fact": "2097-10-23T18:52:00Z → 2097-10-24T16:19:34Z" }, { "step": "kaala", "text": "Moonrise is at 19:26 on the 23rd and 20:13 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 23rd and is not on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: purvaviddha → tithi-day · margin 3232 s" }, { "step": "ruling", "text": "Karaka Caturthī, Ankara, 2097: Wednesday 23 October.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "karaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-10-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-23", "confidence": "boundary" } ], "quote": "In Ankara, Karaka Caturthī (Karwa Chauth) 2097 falls on Wednesday 23 October. Caturthī runs from 21:52 on Wed 23 Oct to 19:20 on Thu 24 Oct, and is current at moonrise on neither day.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-10-23", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-23", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3232, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-10-23T21:52:00+03:00", "utc": "2097-10-23T18:52:00Z", "ms": 4033392720144.28 }, "end": { "local": "2097-10-24T19:19:34+03:00", "utc": "2097-10-24T16:19:34Z", "ms": 4033469973786.1616 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-10-23T21:52:00+03:00", "utc": "2097-10-23T18:52:00Z", "ms": 4033392720144.28 }, "end": { "local": "2097-10-24T19:19:34+03:00", "utc": "2097-10-24T16:19:34Z", "ms": 4033469973786.1616 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-10-23", "window": { "start": { "local": "2097-10-23T19:25:42+03:00", "utc": "2097-10-23T16:25:42Z", "ms": 4033383942355.4824 }, "end": { "local": "2097-10-23T19:25:42+03:00", "utc": "2097-10-23T16:25:42Z", "ms": 4033383942355.4824 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-10-24", "window": { "start": { "local": "2097-10-24T20:13:26+03:00", "utc": "2097-10-24T17:13:26Z", "ms": 4033473206055.9595 }, "end": { "local": "2097-10-24T20:13:26+03:00", "utc": "2097-10-24T17:13:26Z", "ms": 4033473206055.9595 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:52 on Wed 23 Oct to 19:20 on Thu 24 Oct.", "fact": "2097-10-23T18:52:00Z → 2097-10-24T16:19:34Z" }, { "step": "kaala", "text": "Moonrise is at 19:26 on the 23rd and 20:13 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 23rd and is not on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 3232 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Wednesday 23 October.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-10-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-23", "confidence": "boundary" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Wednesday 23 October. Caturthī runs from 21:52 on Wed 23 Oct to 19:20 on Thu 24 Oct, and is current at moonrise on neither day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-10-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37426, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-10-27T12:01:37+03:00", "utc": "2097-10-27T09:01:37Z", "ms": 4033702897152.427 }, "end": { "local": "2097-10-28T09:57:25+03:00", "utc": "2097-10-28T06:57:25Z", "ms": 4033781844663.5796 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-10-27T12:01:37+03:00", "utc": "2097-10-27T09:01:37Z", "ms": 4033702897152.427 }, "end": { "local": "2097-10-28T09:57:25+03:00", "utc": "2097-10-28T06:57:25Z", "ms": 4033781844663.5796 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-10-26", "window": { "start": { "local": "2097-10-26T22:20:07+03:00", "utc": "2097-10-26T19:20:07Z", "ms": 4033653606987.861 }, "end": { "local": "2097-10-26T22:20:07+03:00", "utc": "2097-10-26T19:20:07Z", "ms": 4033653606987.861 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-10-27", "window": { "start": { "local": "2097-10-27T23:33:39+03:00", "utc": "2097-10-27T20:33:39Z", "ms": 4033744419143.7886 }, "end": { "local": "2097-10-27T23:33:39+03:00", "utc": "2097-10-27T20:33:39Z", "ms": 4033744419143.7886 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:02 on Sun 27 Oct to 09:57 on Mon 28 Oct.", "fact": "2097-10-27T09:01:37Z → 2097-10-28T06:57:25Z" }, { "step": "kaala", "text": "Moonrise is at 22:20 on the 26th and 23:34 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 26th and is on the 27th.", "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 37426 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Ankara, 2097: Sunday 27 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-27", "confidence": "determinate" } ], "quote": "In Ankara, Ahoyī Aṣṭamī 2097 falls on Sunday 27 October. Aṣṭamī runs from 12:02 on Sun 27 Oct to 09:57 on Mon 28 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-10-30", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2112, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-10-30T06:41:17+03:00", "utc": "2097-10-30T03:41:17Z", "ms": 4033942877084.3657 }, "end": { "local": "2097-10-31T05:33:53+03:00", "utc": "2097-10-31T02:33:53Z", "ms": 4034025232588.643 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-10-30T06:41:17+03:00", "utc": "2097-10-30T03:41:17Z", "ms": 4033942877084.3657 }, "end": { "local": "2097-10-31T05:33:53+03:00", "utc": "2097-10-31T02:33:53Z", "ms": 4034025232588.643 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-10-30", "window": { "start": { "local": "2097-10-30T07:16:29+03:00", "utc": "2097-10-30T04:16:29Z", "ms": 4033944989013.8755 }, "end": { "local": "2097-10-30T07:16:29+03:00", "utc": "2097-10-30T04:16:29Z", "ms": 4033944989013.8755 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-10-31", "window": { "start": { "local": "2097-10-31T07:17:37+03:00", "utc": "2097-10-31T04:17:37Z", "ms": 4034031456547.384 }, "end": { "local": "2097-10-31T07:17:37+03:00", "utc": "2097-10-31T04:17:37Z", "ms": 4034031456547.384 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:41 on Wed 30 Oct to 05:34 on Thu 31 Oct.", "fact": "2097-10-30T03:41:17Z → 2097-10-31T02:33:53Z" }, { "step": "kaala", "text": "Sunrise is at 07:16 on the 30th and 07:18 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 2112 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Ankara, 2097: Wednesday 30 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": "2097-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-30", "confidence": "determinate" } ], "quote": "In Ankara, Ramā Ekādaśī 2097 falls on Wednesday 30 October. Ekādaśī runs from 06:41 on Wed 30 Oct to 05:34 on Thu 31 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-10-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33259, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2097-10-31T05:33:53+03:00", "utc": "2097-10-31T02:33:53Z", "ms": 4034025232588.643 }, "end": { "local": "2097-11-01T04:49:25+03:00", "utc": "2097-11-01T01:49:25Z", "ms": 4034108964926.22 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-10-31T05:33:53+03:00", "utc": "2097-10-31T02:33:53Z", "ms": 4034025232588.643 }, "end": { "local": "2097-11-01T04:49:25+03:00", "utc": "2097-11-01T01:49:25Z", "ms": 4034108964926.22 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-10-30", "window": { "start": { "local": "2097-10-30T17:48:02+03:00", "utc": "2097-10-30T14:48:02Z", "ms": 4033982882349.353 }, "end": { "local": "2097-10-30T19:35:59+03:00", "utc": "2097-10-30T16:35:59Z", "ms": 4033989358909.0903 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2097-10-31", "window": { "start": { "local": "2097-10-31T17:46:51+03:00", "utc": "2097-10-31T14:46:51Z", "ms": 4034069210653.7227 }, "end": { "local": "2097-10-31T19:35:06+03:00", "utc": "2097-10-31T16:35:06Z", "ms": 4034075705809.9507 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 05:34 on Thu 31 Oct to 04:49 on Fri 1 Nov.", "fact": "2097-10-31T02:33:53Z → 2097-11-01T01:49:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:48–19:36 on the 30th, 17:47–19:35 on the 31st.", "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 108 minutes on the 30th and 108 of 108 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33259 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Ankara, 2097: Thursday 31 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-10-31", "confidence": "determinate" } ], "quote": "In Ankara, Govatsa Dvādaśī (Vasu Baras) 2097 falls on Thursday 31 October. Dvādaśī runs from 05:34 on Thu 31 Oct to 04:49 on Fri 1 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32124, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-11-01T04:49:25+03:00", "utc": "2097-11-01T01:49:25Z", "ms": 4034108964926.22 }, "end": { "local": "2097-11-02T04:29:38+03:00", "utc": "2097-11-02T01:29:38Z", "ms": 4034194178166.164 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-01T04:49:25+03:00", "utc": "2097-11-01T01:49:25Z", "ms": 4034108964926.22 }, "end": { "local": "2097-11-02T04:29:38+03:00", "utc": "2097-11-02T01:29:38Z", "ms": 4034194178166.164 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-10-31", "window": { "start": { "local": "2097-10-31T17:46:51+03:00", "utc": "2097-10-31T14:46:51Z", "ms": 4034069210653.7227 }, "end": { "local": "2097-10-31T19:35:06+03:00", "utc": "2097-10-31T16:35:06Z", "ms": 4034075705809.9507 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2097-11-01", "window": { "start": { "local": "2097-11-01T17:45:40+03:00", "utc": "2097-11-01T14:45:40Z", "ms": 4034155540344.0273 }, "end": { "local": "2097-11-01T19:34:14+03:00", "utc": "2097-11-01T16:34:14Z", "ms": 4034162053941.7124 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:49 on Fri 1 Nov to 04:30 on Sat 2 Nov.", "fact": "2097-11-01T01:49:25Z → 2097-11-02T01:29:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:47–19:35 on the 31st, 17:46–19:34 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 108 minutes on the 31st and 109 of 109 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32124 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Ankara, 2097: Friday 1 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": "2097-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-01", "confidence": "determinate" } ], "quote": "In Ankara, Yama Dīpadāna 2097 falls on Friday 1 November. Trayodaśī runs from 04:49 on Fri 1 Nov to 04:30 on Sat 2 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pradosha-vrata?on=2097-11-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32124, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-11-01T04:49:25+03:00", "utc": "2097-11-01T01:49:25Z", "ms": 4034108964926.22 }, "end": { "local": "2097-11-02T04:29:38+03:00", "utc": "2097-11-02T01:29:38Z", "ms": 4034194178166.164 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-01T04:49:25+03:00", "utc": "2097-11-01T01:49:25Z", "ms": 4034108964926.22 }, "end": { "local": "2097-11-02T04:29:38+03:00", "utc": "2097-11-02T01:29:38Z", "ms": 4034194178166.164 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-10-31", "window": { "start": { "local": "2097-10-31T17:46:51+03:00", "utc": "2097-10-31T14:46:51Z", "ms": 4034069210653.7227 }, "end": { "local": "2097-10-31T19:35:06+03:00", "utc": "2097-10-31T16:35:06Z", "ms": 4034075705809.9507 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2097-11-01", "window": { "start": { "local": "2097-11-01T17:45:40+03:00", "utc": "2097-11-01T14:45:40Z", "ms": 4034155540344.0273 }, "end": { "local": "2097-11-01T19:34:14+03:00", "utc": "2097-11-01T16:34:14Z", "ms": 4034162053941.7124 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:49 on Fri 1 Nov to 04:30 on Sat 2 Nov.", "fact": "2097-11-01T01:49:25Z → 2097-11-02T01:29:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:47–19:35 on the 31st, 17:46–19:34 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 108 minutes on the 31st and 109 of 109 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 32124 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Friday 1 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": "2097-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-01", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Friday 1 November. Trayodaśī runs from 04:49 on Fri 1 Nov to 04:30 on Sat 2 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-11-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3358, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-11-02T04:29:38+03:00", "utc": "2097-11-02T01:29:38Z", "ms": 4034194178166.164 }, "end": { "local": "2097-11-03T04:36:11+03:00", "utc": "2097-11-03T01:36:11Z", "ms": 4034280971129.715 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-02T04:29:38+03:00", "utc": "2097-11-02T01:29:38Z", "ms": 4034194178166.164 }, "end": { "local": "2097-11-03T04:36:11+03:00", "utc": "2097-11-03T01:36:11Z", "ms": 4034280971129.715 } }, "kaala": "arunodaya", "days": [ { "local_date": "2097-11-02", "window": { "start": { "local": "2097-11-02T05:31:19+03:00", "utc": "2097-11-02T02:31:19Z", "ms": 4034197878728.9814 }, "end": { "local": "2097-11-02T07:19:52+03:00", "utc": "2097-11-02T04:19:52Z", "ms": 4034204392326.6665 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "2097-11-03", "window": { "start": { "local": "2097-11-03T05:32:09+03:00", "utc": "2097-11-03T02:32:09Z", "ms": 4034284328651.2397 }, "end": { "local": "2097-11-03T07:21:01+03:00", "utc": "2097-11-03T04:21:01Z", "ms": 4034290860527.828 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:30 on Sat 2 Nov to 04:36 on Sun 3 Nov.", "fact": "2097-11-02T01:29:38Z → 2097-11-03T01:36:11Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:31–07:20 on the 2nd, 05:32–07:21 on the 3rd.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 109 of 109 minutes on the 2nd and 0 of 109 on the 3rd.", "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 3358 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Ankara, 2097: Saturday 2 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": "2097-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-02", "confidence": "determinate" } ], "quote": "In Ankara, Naraka Caturdaśī (Choti Diwali) 2097 falls on Saturday 2 November. Caturdaśī runs from 04:30 on Sat 2 Nov to 04:36 on Sun 3 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/shivaratri?on=2097-11-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12772, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-11-02T04:29:38+03:00", "utc": "2097-11-02T01:29:38Z", "ms": 4034194178166.164 }, "end": { "local": "2097-11-03T04:36:11+03:00", "utc": "2097-11-03T01:36:11Z", "ms": 4034280971129.715 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-02T04:29:38+03:00", "utc": "2097-11-02T01:29:38Z", "ms": 4034194178166.164 }, "end": { "local": "2097-11-03T04:36:11+03:00", "utc": "2097-11-03T01:36:11Z", "ms": 4034280971129.715 } }, "kaala": "nishita", "days": [ { "local_date": "2097-11-01", "window": { "start": { "local": "2097-11-02T00:08:46+03:00", "utc": "2097-11-01T21:08:46Z", "ms": 4034178526335.3467 }, "end": { "local": "2097-11-02T00:56:46+03:00", "utc": "2097-11-01T21:56:46Z", "ms": 4034181406335.3467 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-11-02", "window": { "start": { "local": "2097-11-03T00:08:46+03:00", "utc": "2097-11-02T21:08:46Z", "ms": 4034264925990.622 }, "end": { "local": "2097-11-03T00:56:46+03:00", "utc": "2097-11-02T21:56:46Z", "ms": 4034267805990.622 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:30 on Sat 2 Nov to 04:36 on Sun 3 Nov.", "fact": "2097-11-02T01:29:38Z → 2097-11-03T01:36:11Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 1st, 00:09–00:57 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12772 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Saturday 2 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": "2097-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-02", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Saturday 2 November. Caturdaśī runs from 04:30 on Sat 2 Nov to 04:36 on Sun 3 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-11-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32568, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2097-11-03T04:36:11+03:00", "utc": "2097-11-03T01:36:11Z", "ms": 4034280971129.715 }, "end": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-03T04:36:11+03:00", "utc": "2097-11-03T01:36:11Z", "ms": 4034280971129.715 }, "end": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-11-02", "window": { "start": { "local": "2097-11-02T17:44:31+03:00", "utc": "2097-11-02T14:44:31Z", "ms": 4034241871453.416 }, "end": { "local": "2097-11-02T19:33:23+03:00", "utc": "2097-11-02T16:33:23Z", "ms": 4034248403330.0044 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "2097-11-03", "window": { "start": { "local": "2097-11-03T17:43:24+03:00", "utc": "2097-11-03T14:43:24Z", "ms": 4034328204014.652 }, "end": { "local": "2097-11-03T19:32:34+03:00", "utc": "2097-11-03T16:32:34Z", "ms": 4034334753999.886 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 04:36 on Sun 3 Nov to 05:10 on Mon 4 Nov.", "fact": "2097-11-03T01:36:11Z → 2097-11-04T02:10:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:45–19:33 on the 2nd, 17:43–19:33 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 0 of 109 minutes on the 2nd and 109 of 109 on the 3rd.", "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 32568 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Ankara, 2097: Sunday 3 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": "2097-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-03", "confidence": "determinate" } ], "quote": "In Ankara, Lakṣmī Pūjā (Diwali) 2097 falls on Sunday 3 November. Amāvasyā runs from 04:36 on Sun 3 Nov to 05:10 on Mon 4 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13165, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2097-11-03T04:36:11+03:00", "utc": "2097-11-03T01:36:11Z", "ms": 4034280971129.715 }, "end": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-03T04:36:11+03:00", "utc": "2097-11-03T01:36:11Z", "ms": 4034280971129.715 }, "end": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 } }, "kaala": "nishita", "days": [ { "local_date": "2097-11-02", "window": { "start": { "local": "2097-11-03T00:08:46+03:00", "utc": "2097-11-02T21:08:46Z", "ms": 4034264925990.622 }, "end": { "local": "2097-11-03T00:56:46+03:00", "utc": "2097-11-02T21:56:46Z", "ms": 4034267805990.622 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-11-03", "window": { "start": { "local": "2097-11-04T00:08:46+03:00", "utc": "2097-11-03T21:08:46Z", "ms": 4034351326459.2812 }, "end": { "local": "2097-11-04T00:56:46+03:00", "utc": "2097-11-03T21:56:46Z", "ms": 4034354206459.2812 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 04:36 on Sun 3 Nov to 05:10 on Mon 4 Nov.", "fact": "2097-11-03T01:36:11Z → 2097-11-04T02:10:27Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 2nd, 00:09–00:57 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "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 13165 s" }, { "step": "ruling", "text": "Kālī Pūjā, Ankara, 2097: Sunday 3 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": "2097-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-03", "confidence": "determinate" } ], "quote": "In Ankara, Kālī Pūjā 2097 falls on Sunday 3 November. Amāvasyā runs from 04:36 on Sun 3 Nov to 05:10 on Mon 4 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21304, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 }, "end": { "local": "2097-11-05T06:13:11+03:00", "utc": "2097-11-05T03:13:11Z", "ms": 4034459591086.57 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 }, "end": { "local": "2097-11-05T06:13:11+03:00", "utc": "2097-11-05T03:13:11Z", "ms": 4034459591086.57 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-11-04", "window": { "start": { "local": "2097-11-04T12:08:13+03:00", "utc": "2097-11-04T09:08:13Z", "ms": 4034394493482.1055 }, "end": { "local": "2097-11-04T12:56:13+03:00", "utc": "2097-11-04T09:56:13Z", "ms": 4034397373482.1055 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-11-05", "window": { "start": { "local": "2097-11-05T12:08:16+03:00", "utc": "2097-11-05T09:08:16Z", "ms": 4034480895525.6025 }, "end": { "local": "2097-11-05T12:56:16+03:00", "utc": "2097-11-05T09:56:16Z", "ms": 4034483775525.6025 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 05:10 on Mon 4 Nov to 06:13 on Tue 5 Nov.", "fact": "2097-11-04T02:10:27Z → 2097-11-05T03:13:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 4th, 12:08–12:56 on the 5th.", "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 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21304 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Ankara, 2097: Monday 4 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": "2097-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-04", "confidence": "determinate" } ], "quote": "In Ankara, Govardhana Pūjā 2097 falls on Monday 4 November. Pratipadā runs from 05:10 on Mon 4 Nov to 06:13 on Tue 5 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34673, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 }, "end": { "local": "2097-11-05T06:13:11+03:00", "utc": "2097-11-05T03:13:11Z", "ms": 4034459591086.57 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 }, "end": { "local": "2097-11-05T06:13:11+03:00", "utc": "2097-11-05T03:13:11Z", "ms": 4034459591086.57 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-11-03", "window": { "start": { "local": "2097-11-03T17:43:24+03:00", "utc": "2097-11-03T14:43:24Z", "ms": 4034328204014.652 }, "end": { "local": "2097-11-03T19:32:34+03:00", "utc": "2097-11-03T16:32:34Z", "ms": 4034334753999.886 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "2097-11-04", "window": { "start": { "local": "2097-11-04T17:42:18+03:00", "utc": "2097-11-04T14:42:18Z", "ms": 4034414538060.3 }, "end": { "local": "2097-11-04T19:31:46+03:00", "utc": "2097-11-04T16:31:46Z", "ms": 4034421105976.102 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 05:10 on Mon 4 Nov to 06:13 on Tue 5 Nov.", "fact": "2097-11-04T02:10:27Z → 2097-11-05T03:13:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:43–19:33 on the 3rd, 17:42–19:32 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 0 of 109 minutes on the 3rd and 109 of 109 on the 4th.", "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 34673 s" }, { "step": "ruling", "text": "Bali Pūjā, Ankara, 2097: Monday 4 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": "2097-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-04", "confidence": "determinate" } ], "quote": "In Ankara, Bali Pūjā 2097 falls on Monday 4 November. Pratipadā runs from 05:10 on Mon 4 Nov to 06:13 on Tue 5 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4206, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 }, "end": { "local": "2097-11-05T06:13:11+03:00", "utc": "2097-11-05T03:13:11Z", "ms": 4034459591086.57 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-04T05:10:27+03:00", "utc": "2097-11-04T02:10:27Z", "ms": 4034369427091.7617 }, "end": { "local": "2097-11-05T06:13:11+03:00", "utc": "2097-11-05T03:13:11Z", "ms": 4034459591086.57 } }, "kaala": "purvahna", "days": [ { "local_date": "2097-11-04", "window": { "start": { "local": "2097-11-04T07:22:09+03:00", "utc": "2097-11-04T04:22:09Z", "ms": 4034377328903.911 }, "end": { "local": "2097-11-04T10:48:52+03:00", "utc": "2097-11-04T07:48:52Z", "ms": 4034389731956.0405 } }, "covered_min": 207, "window_min": 207, "qualifies": true }, { "local_date": "2097-11-05", "window": { "start": { "local": "2097-11-05T07:23:17+03:00", "utc": "2097-11-05T04:23:17Z", "ms": 4034463797428.8184 }, "end": { "local": "2097-11-05T10:49:16+03:00", "utc": "2097-11-05T07:49:16Z", "ms": 4034476156160.008 } }, "covered_min": 0, "window_min": 206, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 05:10 on Mon 4 Nov to 06:13 on Tue 5 Nov.", "fact": "2097-11-04T02:10:27Z → 2097-11-05T03:13:11Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:22–10:49 on the 4th, 07:23–10:49 on the 5th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 207 of 207 minutes on the 4th and 0 of 206 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4206 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Ankara, 2097: Monday 4 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-04", "confidence": "determinate" } ], "quote": "In Ankara, Dyūta Pratipad 2097 falls on Monday 4 November. Pratipadā runs from 05:10 on Mon 4 Nov to 06:13 on Tue 5 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15863, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2097-11-05T06:13:11+03:00", "utc": "2097-11-05T03:13:11Z", "ms": 4034459591086.57 }, "end": { "local": "2097-11-06T07:43:55+03:00", "utc": "2097-11-06T04:43:55Z", "ms": 4034551435484.238 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-05T06:13:11+03:00", "utc": "2097-11-05T03:13:11Z", "ms": 4034459591086.57 }, "end": { "local": "2097-11-06T07:43:55+03:00", "utc": "2097-11-06T04:43:55Z", "ms": 4034551435484.238 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-11-05", "window": { "start": { "local": "2097-11-05T12:08:16+03:00", "utc": "2097-11-05T09:08:16Z", "ms": 4034480895525.6025 }, "end": { "local": "2097-11-05T12:56:16+03:00", "utc": "2097-11-05T09:56:16Z", "ms": 4034483775525.6025 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-11-06", "window": { "start": { "local": "2097-11-06T12:08:18+03:00", "utc": "2097-11-06T09:08:18Z", "ms": 4034567298404.0215 }, "end": { "local": "2097-11-06T12:56:18+03:00", "utc": "2097-11-06T09:56:18Z", "ms": 4034570178404.0215 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 06:13 on Tue 5 Nov to 07:44 on Wed 6 Nov.", "fact": "2097-11-05T03:13:11Z → 2097-11-06T04:43:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 5th, 12:08–12:56 on the 6th.", "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 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15863 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Ankara, 2097: Tuesday 5 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": "2097-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-05", "confidence": "determinate" } ], "quote": "In Ankara, Yama Dvitīyā (Bhai Dooj) 2097 falls on Tuesday 5 November. Dvitīyā runs from 06:13 on Tue 5 Nov to 07:44 on Wed 6 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 663, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-11-07T09:40:18+03:00", "utc": "2097-11-07T06:40:18Z", "ms": 4034644818284.4854 }, "end": { "local": "2097-11-08T11:57:24+03:00", "utc": "2097-11-08T08:57:24Z", "ms": 4034739443733.2056 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-07T09:40:18+03:00", "utc": "2097-11-07T06:40:18Z", "ms": 4034644818284.4854 }, "end": { "local": "2097-11-08T11:57:24+03:00", "utc": "2097-11-08T08:57:24Z", "ms": 4034739443733.2056 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-11-07", "window": { "start": { "local": "2097-11-07T12:08:22+03:00", "utc": "2097-11-07T09:08:22Z", "ms": 4034653702119.0693 }, "end": { "local": "2097-11-07T12:56:22+03:00", "utc": "2097-11-07T09:56:22Z", "ms": 4034656582119.0693 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-11-08", "window": { "start": { "local": "2097-11-08T12:08:27+03:00", "utc": "2097-11-08T09:08:27Z", "ms": 4034740106671.937 }, "end": { "local": "2097-11-08T12:56:27+03:00", "utc": "2097-11-08T09:56:27Z", "ms": 4034742986671.937 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:40 on Thu 7 Nov to 11:57 on Fri 8 Nov.", "fact": "2097-11-07T06:40:18Z → 2097-11-08T08:57:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 7th, 12:08–12:56 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 663 s" }, { "step": "ruling", "text": "Nāga Caturthī, Ankara, 2097: Thursday 7 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": "2097-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-08", "confidence": "determinate" } ], "quote": "In Ankara, Nāga Caturthī 2097 falls on Thursday 7 November. Caturthī runs from 09:40 on Thu 7 Nov to 11:57 on Fri 8 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-11-07", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 663, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-11-07T09:40:18+03:00", "utc": "2097-11-07T06:40:18Z", "ms": 4034644818284.4854 }, "end": { "local": "2097-11-08T11:57:24+03:00", "utc": "2097-11-08T08:57:24Z", "ms": 4034739443733.2056 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-07T09:40:18+03:00", "utc": "2097-11-07T06:40:18Z", "ms": 4034644818284.4854 }, "end": { "local": "2097-11-08T11:57:24+03:00", "utc": "2097-11-08T08:57:24Z", "ms": 4034739443733.2056 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-11-07", "window": { "start": { "local": "2097-11-07T12:08:22+03:00", "utc": "2097-11-07T09:08:22Z", "ms": 4034653702119.0693 }, "end": { "local": "2097-11-07T12:56:22+03:00", "utc": "2097-11-07T09:56:22Z", "ms": 4034656582119.0693 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-11-08", "window": { "start": { "local": "2097-11-08T12:08:27+03:00", "utc": "2097-11-08T09:08:27Z", "ms": 4034740106671.937 }, "end": { "local": "2097-11-08T12:56:27+03:00", "utc": "2097-11-08T09:56:27Z", "ms": 4034742986671.937 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:40 on Thu 7 Nov to 11:57 on Fri 8 Nov.", "fact": "2097-11-07T06:40:18Z → 2097-11-08T08:57:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 7th, 12:08–12:56 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 663 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Thursday 7 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": "2097-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-07", "confidence": "boundary" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Thursday 7 November. Caturthī runs from 09:40 on Thu 7 Nov to 11:57 on Fri 8 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5448, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2097-11-09T14:27:20+03:00", "utc": "2097-11-09T11:27:20Z", "ms": 4034834840051.8945 }, "end": { "local": "2097-11-10T16:59:31+03:00", "utc": "2097-11-10T13:59:31Z", "ms": 4034930370724.628 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-09T14:27:20+03:00", "utc": "2097-11-09T11:27:20Z", "ms": 4034834840051.8945 }, "end": { "local": "2097-11-10T16:59:31+03:00", "utc": "2097-11-10T13:59:31Z", "ms": 4034930370724.628 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-11-09", "window": { "start": { "local": "2097-11-09T12:08:32+03:00", "utc": "2097-11-09T09:08:32Z", "ms": 4034826512063.3076 }, "end": { "local": "2097-11-09T12:56:32+03:00", "utc": "2097-11-09T09:56:32Z", "ms": 4034829392063.3076 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-11-10", "window": { "start": { "local": "2097-11-10T12:08:38+03:00", "utc": "2097-11-10T09:08:38Z", "ms": 4034912918293.3555 }, "end": { "local": "2097-11-10T12:56:38+03:00", "utc": "2097-11-10T09:56:38Z", "ms": 4034915798293.3555 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 14:27 on Sat 9 Nov to 17:00 on Sun 10 Nov.", "fact": "2097-11-09T11:27:20Z → 2097-11-10T13:59:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 9th, 12:09–12:57 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5448 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Ankara, 2097: Sunday 10 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": "2097-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-10", "confidence": "determinate" } ], "quote": "In Ankara, Sūrya Ṣaṣṭhī (Chhath) 2097 falls on Sunday 10 November. Ṣaṣṭhī runs from 14:27 on Sat 9 Nov to 17:00 on Sun 10 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23084, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2097-11-11T19:21:29+03:00", "utc": "2097-11-11T16:21:29Z", "ms": 4035025289392.8525 }, "end": { "local": "2097-11-12T21:20:33+03:00", "utc": "2097-11-12T18:20:33Z", "ms": 4035118832910.4976 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-11T19:21:29+03:00", "utc": "2097-11-11T16:21:29Z", "ms": 4035025289392.8525 }, "end": { "local": "2097-11-12T21:20:33+03:00", "utc": "2097-11-12T18:20:33Z", "ms": 4035118832910.4976 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-11-11", "window": { "start": { "local": "2097-11-11T12:08:45+03:00", "utc": "2097-11-11T09:08:45Z", "ms": 4034999325361.7305 }, "end": { "local": "2097-11-11T12:56:45+03:00", "utc": "2097-11-11T09:56:45Z", "ms": 4035002205361.7305 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-11-12", "window": { "start": { "local": "2097-11-12T12:08:53+03:00", "utc": "2097-11-12T09:08:53Z", "ms": 4035085733267.5566 }, "end": { "local": "2097-11-12T12:56:53+03:00", "utc": "2097-11-12T09:56:53Z", "ms": 4035088613267.5566 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 19:21 on Mon 11 Nov to 21:21 on Tue 12 Nov.", "fact": "2097-11-11T16:21:29Z → 2097-11-12T18:20:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 11th, 12:09–12:57 on the 12th.", "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 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23084 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Ankara, 2097: Tuesday 12 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": "2097-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-12", "confidence": "determinate" } ], "quote": "In Ankara, Gopāṣṭamī 2097 falls on Tuesday 12 November. Aṣṭamī runs from 19:21 on Mon 11 Nov to 21:21 on Tue 12 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31687, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2097-11-12T21:20:33+03:00", "utc": "2097-11-12T18:20:33Z", "ms": 4035118832910.4976 }, "end": { "local": "2097-11-13T22:45:29+03:00", "utc": "2097-11-13T19:45:29Z", "ms": 4035210329279.1143 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-12T21:20:33+03:00", "utc": "2097-11-12T18:20:33Z", "ms": 4035118832910.4976 }, "end": { "local": "2097-11-13T22:45:29+03:00", "utc": "2097-11-13T19:45:29Z", "ms": 4035210329279.1143 } }, "kaala": "purvahna", "days": [ { "local_date": "2097-11-13", "window": { "start": { "local": "2097-11-13T07:32:27+03:00", "utc": "2097-11-13T04:32:27Z", "ms": 4035155547360.891 }, "end": { "local": "2097-11-13T10:52:50+03:00", "utc": "2097-11-13T07:52:50Z", "ms": 4035167570459.9307 } }, "covered_min": 200, "window_min": 200, "qualifies": true }, { "local_date": "2097-11-14", "window": { "start": { "local": "2097-11-14T07:33:36+03:00", "utc": "2097-11-14T04:33:36Z", "ms": 4035242015826.961 }, "end": { "local": "2097-11-14T10:53:20+03:00", "utc": "2097-11-14T07:53:20Z", "ms": 4035253999666.0376 } }, "covered_min": 0, "window_min": 200, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 21:21 on Tue 12 Nov to 22:45 on Wed 13 Nov.", "fact": "2097-11-12T18:20:33Z → 2097-11-13T19:45:29Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:32–10:53 on the 13th, 07:34–10:53 on the 14th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 200 of 200 minutes on the 13th and 0 of 200 on the 14th.", "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 31687 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Ankara, 2097: Wednesday 13 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": "2097-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-13", "confidence": "determinate" } ], "quote": "In Ankara, Akṣaya Navamī (Amla Navami) 2097 falls on Wednesday 13 November. Navamī runs from 21:21 on Tue 12 Nov to 22:45 on Wed 13 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30220, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2097-11-12T21:20:33+03:00", "utc": "2097-11-12T18:20:33Z", "ms": 4035118832910.4976 }, "end": { "local": "2097-11-13T22:45:29+03:00", "utc": "2097-11-13T19:45:29Z", "ms": 4035210329279.1143 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-12T21:20:33+03:00", "utc": "2097-11-12T18:20:33Z", "ms": 4035118832910.4976 }, "end": { "local": "2097-11-13T22:45:29+03:00", "utc": "2097-11-13T19:45:29Z", "ms": 4035210329279.1143 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-11-12", "window": { "start": { "local": "2097-11-12T12:08:53+03:00", "utc": "2097-11-12T09:08:53Z", "ms": 4035085733267.5566 }, "end": { "local": "2097-11-12T12:56:53+03:00", "utc": "2097-11-12T09:56:53Z", "ms": 4035088613267.5566 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-11-13", "window": { "start": { "local": "2097-11-13T12:09:02+03:00", "utc": "2097-11-13T09:09:02Z", "ms": 4035172142009.4507 }, "end": { "local": "2097-11-13T12:57:02+03:00", "utc": "2097-11-13T09:57:02Z", "ms": 4035175022009.4507 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 21:21 on Tue 12 Nov to 22:45 on Wed 13 Nov.", "fact": "2097-11-12T18:20:33Z → 2097-11-13T19:45:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 12th, 12:09–12:57 on the 13th.", "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 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30220 s" }, { "step": "ruling", "text": "Durgā Navamī, Ankara, 2097: Wednesday 13 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": "2097-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-13", "confidence": "determinate" } ], "quote": "In Ankara, Durgā Navamī 2097 falls on Wednesday 13 November. Navamī runs from 21:21 on Tue 12 Nov to 22:45 on Wed 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-11-15", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29195, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-11-14T23:28:09+03:00", "utc": "2097-11-14T20:28:09Z", "ms": 4035299288930.9175 }, "end": { "local": "2097-11-15T23:24:16+03:00", "utc": "2097-11-15T20:24:16Z", "ms": 4035385455732.964 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-14T23:28:09+03:00", "utc": "2097-11-14T20:28:09Z", "ms": 4035299288930.9175 }, "end": { "local": "2097-11-15T23:24:16+03:00", "utc": "2097-11-15T20:24:16Z", "ms": 4035385455732.964 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-11-15", "window": { "start": { "local": "2097-11-15T07:34:44+03:00", "utc": "2097-11-15T04:34:44Z", "ms": 4035328484114.6885 }, "end": { "local": "2097-11-15T07:34:44+03:00", "utc": "2097-11-15T04:34:44Z", "ms": 4035328484114.6885 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-11-16", "window": { "start": { "local": "2097-11-16T07:35:52+03:00", "utc": "2097-11-16T04:35:52Z", "ms": 4035414952187.5225 }, "end": { "local": "2097-11-16T07:35:52+03:00", "utc": "2097-11-16T04:35:52Z", "ms": 4035414952187.5225 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:28 on Thu 14 Nov to 23:24 on Fri 15 Nov.", "fact": "2097-11-14T20:28:09Z → 2097-11-15T20:24:16Z" }, { "step": "kaala", "text": "Sunrise is at 07:35 on the 15th and 07:36 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 29195 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Ankara, 2097: Friday 15 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": "2097-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-15", "confidence": "determinate" } ], "quote": "In Ankara, Prabodhinī Ekādaśī 2097 falls on Friday 15 November. Ekādaśī runs from 23:28 on Thu 14 Nov to 23:24 on Fri 15 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-11-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-11-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5739, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-11-16T22:33:32+03:00", "utc": "2097-11-16T19:33:32Z", "ms": 4035468812368.5083 }, "end": { "local": "2097-11-17T20:59:11+03:00", "utc": "2097-11-17T17:59:11Z", "ms": 4035549550998.351 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-16T22:33:32+03:00", "utc": "2097-11-16T19:33:32Z", "ms": 4035468812368.5083 }, "end": { "local": "2097-11-17T20:59:11+03:00", "utc": "2097-11-17T17:59:11Z", "ms": 4035549550998.351 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-11-16", "window": { "start": { "local": "2097-11-16T17:31:14+03:00", "utc": "2097-11-16T14:31:14Z", "ms": 4035450674275.383 }, "end": { "local": "2097-11-16T19:24:00+03:00", "utc": "2097-11-16T16:24:00Z", "ms": 4035457440373.1885 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "2097-11-17", "window": { "start": { "local": "2097-11-17T17:30:31+03:00", "utc": "2097-11-17T14:30:31Z", "ms": 4035537030583.326 }, "end": { "local": "2097-11-17T19:23:32+03:00", "utc": "2097-11-17T16:23:32Z", "ms": 4035543811511.2188 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:34 on Sat 16 Nov to 20:59 on Sun 17 Nov.", "fact": "2097-11-16T19:33:32Z → 2097-11-17T17:59:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:31–19:24 on the 16th, 17:31–19:24 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 113 minutes on the 16th and 113 of 113 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 5739 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Sunday 17 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": "2097-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-17", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Sunday 17 November. Trayodaśī runs from 22:34 on Sat 16 Nov to 20:59 on Sun 17 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-11-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19405, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-11-18T18:47:07+03:00", "utc": "2097-11-18T15:47:07Z", "ms": 4035628026508.4473 }, "end": { "local": "2097-11-19T16:05:07+03:00", "utc": "2097-11-19T13:05:07Z", "ms": 4035704707044.0103 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-18T18:47:07+03:00", "utc": "2097-11-18T15:47:07Z", "ms": 4035628026508.4473 }, "end": { "local": "2097-11-19T16:05:07+03:00", "utc": "2097-11-19T13:05:07Z", "ms": 4035704707044.0103 } }, "kaala": "nishita", "days": [ { "local_date": "2097-11-18", "window": { "start": { "local": "2097-11-19T00:10:32+03:00", "utc": "2097-11-18T21:10:32Z", "ms": 4035647431789.7295 }, "end": { "local": "2097-11-19T00:58:32+03:00", "utc": "2097-11-18T21:58:32Z", "ms": 4035650311789.7295 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-11-19", "window": { "start": { "local": "2097-11-20T00:10:45+03:00", "utc": "2097-11-19T21:10:45Z", "ms": 4035733845319.439 }, "end": { "local": "2097-11-20T00:58:45+03:00", "utc": "2097-11-19T21:58:45Z", "ms": 4035736725319.439 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:47 on Mon 18 Nov to 16:05 on Tue 19 Nov.", "fact": "2097-11-18T15:47:07Z → 2097-11-19T13:05:07Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:11–00:59 on the 18th, 00:11–00:59 on the 19th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19405 s" }, { "step": "ruling", "text": "Rāsayātrā, Ankara, 2097: Monday 18 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rasayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima." } ], "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-18", "confidence": "determinate" } ], "quote": "In Ankara, Rāsayātrā 2097 falls on Monday 18 November. Pūrṇimā runs from 18:47 on Mon 18 Nov to 16:05 on Tue 19 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11215, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-11-18T18:47:07+03:00", "utc": "2097-11-18T15:47:07Z", "ms": 4035628026508.4473 }, "end": { "local": "2097-11-19T16:05:07+03:00", "utc": "2097-11-19T13:05:07Z", "ms": 4035704707044.0103 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2097-11-18T18:47:07+03:00", "utc": "2097-11-18T15:47:07Z", "ms": 4035628026508.4473 }, "end": { "local": "2097-11-19T16:05:07+03:00", "utc": "2097-11-19T13:05:07Z", "ms": 4035704707044.0103 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-11-18", "window": { "start": { "local": "2097-11-18T12:09:58+03:00", "utc": "2097-11-18T09:09:58Z", "ms": 4035604198185.0137 }, "end": { "local": "2097-11-18T12:57:58+03:00", "utc": "2097-11-18T09:57:58Z", "ms": 4035607078185.0137 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-11-19", "window": { "start": { "local": "2097-11-19T12:10:12+03:00", "utc": "2097-11-19T09:10:12Z", "ms": 4035690611895.1914 }, "end": { "local": "2097-11-19T12:58:12+03:00", "utc": "2097-11-19T09:58:12Z", "ms": 4035693491895.1914 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:47 on Mon 18 Nov to 16:05 on Tue 19 Nov.", "fact": "2097-11-18T15:47:07Z → 2097-11-19T13:05:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 18th, 12:10–12:58 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11215 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Ankara, 2097: Tuesday 19 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": "2097-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-19", "confidence": "determinate" } ], "quote": "In Ankara, Kārtikī Pūrṇimā 2097 falls on Tuesday 19 November. Pūrṇimā runs from 18:47 on Mon 18 Nov to 16:05 on Tue 19 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-11-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26164, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-11-22T06:31:31+03:00", "utc": "2097-11-22T03:31:31Z", "ms": 4035929490826.107 }, "end": { "local": "2097-11-23T03:22:36+03:00", "utc": "2097-11-23T00:22:36Z", "ms": 4036004555807.806 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-11-22T06:31:31+03:00", "utc": "2097-11-22T03:31:31Z", "ms": 4035929490826.107 }, "end": { "local": "2097-11-23T03:22:36+03:00", "utc": "2097-11-23T00:22:36Z", "ms": 4036004555807.806 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-11-21", "window": { "start": { "local": "2097-11-21T18:59:18+03:00", "utc": "2097-11-21T15:59:18Z", "ms": 4035887958421.726 }, "end": { "local": "2097-11-21T18:59:18+03:00", "utc": "2097-11-21T15:59:18Z", "ms": 4035887958421.726 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-11-22", "window": { "start": { "local": "2097-11-22T20:06:31+03:00", "utc": "2097-11-22T17:06:31Z", "ms": 4035978391461.1562 }, "end": { "local": "2097-11-22T20:06:31+03:00", "utc": "2097-11-22T17:06:31Z", "ms": 4035978391461.1562 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:32 on Fri 22 Nov to 03:23 on Sat 23 Nov.", "fact": "2097-11-22T03:31:31Z → 2097-11-23T00:22:36Z" }, { "step": "kaala", "text": "Moonrise is at 18:59 on the 21st and 20:07 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26164 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Friday 22 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": "2097-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-22", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Friday 22 November. Caturthī runs from 06:32 on Fri 22 Nov to 03:23 on Sat 23 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-11-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-11-29", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-11-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33830, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-11-28T17:12:49+03:00", "utc": "2097-11-28T14:12:49Z", "ms": 4036486368557.294 }, "end": { "local": "2097-11-29T17:23:41+03:00", "utc": "2097-11-29T14:23:41Z", "ms": 4036573421210.8716 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-11-28T17:12:49+03:00", "utc": "2097-11-28T14:12:49Z", "ms": 4036486368557.294 }, "end": { "local": "2097-11-29T17:23:41+03:00", "utc": "2097-11-29T14:23:41Z", "ms": 4036573421210.8716 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-11-28", "window": { "start": { "local": "2097-11-28T07:48:58+03:00", "utc": "2097-11-28T04:48:58Z", "ms": 4036452538357.8247 }, "end": { "local": "2097-11-28T07:48:58+03:00", "utc": "2097-11-28T04:48:58Z", "ms": 4036452538357.8247 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-11-29", "window": { "start": { "local": "2097-11-29T07:50:00+03:00", "utc": "2097-11-29T04:50:00Z", "ms": 4036538999971.4336 }, "end": { "local": "2097-11-29T07:50:00+03:00", "utc": "2097-11-29T04:50:00Z", "ms": 4036538999971.4336 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:13 on Thu 28 Nov to 17:24 on Fri 29 Nov.", "fact": "2097-11-28T14:12:49Z → 2097-11-29T14:23:41Z" }, { "step": "kaala", "text": "Sunrise is at 07:49 on the 28th and 07:50 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 33830 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Ankara, 2097: Friday 29 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": "2097-11-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-29", "confidence": "determinate" } ], "quote": "In Ankara, Utpannā Ekādaśī 2097 falls on Friday 29 November. Ekādaśī runs from 17:13 on Thu 28 Nov to 17:24 on Fri 29 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-11-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-12-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-01", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 598, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-11-30T18:03:44+03:00", "utc": "2097-11-30T15:03:44Z", "ms": 4036662224454.303 }, "end": { "local": "2097-12-01T19:09:50+03:00", "utc": "2097-12-01T16:09:50Z", "ms": 4036752589723.691 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-11-30T18:03:44+03:00", "utc": "2097-11-30T15:03:44Z", "ms": 4036662224454.303 }, "end": { "local": "2097-12-01T19:09:50+03:00", "utc": "2097-12-01T16:09:50Z", "ms": 4036752589723.691 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-11-30", "window": { "start": { "local": "2097-11-30T17:24:09+03:00", "utc": "2097-11-30T14:24:09Z", "ms": 4036659849137.5654 }, "end": { "local": "2097-11-30T19:19:52+03:00", "utc": "2097-11-30T16:19:52Z", "ms": 4036666792001.1577 } }, "covered_min": 76, "window_min": 116, "qualifies": true }, { "local_date": "2097-12-01", "window": { "start": { "local": "2097-12-01T17:23:55+03:00", "utc": "2097-12-01T14:23:55Z", "ms": 4036746234973.009 }, "end": { "local": "2097-12-01T19:19:48+03:00", "utc": "2097-12-01T16:19:48Z", "ms": 4036753187580.326 } }, "covered_min": 106, "window_min": 116, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:04 on Sat 30 Nov to 19:10 on Sun 1 Dec.", "fact": "2097-11-30T15:03:44Z → 2097-12-01T16:09:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:20 on the 30th, 17:24–19:20 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 76 of 116 minutes on the 30th and 106 of 116 on the 1st.", "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 598 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Sunday 1 December.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-12-01", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-11-30", "confidence": "boundary" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Sunday 1 December. Trayodaśī runs from 18:04 on Sat 30 Nov to 19:10 on Sun 1 Dec and covers 106 of 116 minutes of pradoṣa that evening. It also reaches the previous evening for 76 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/ankara/festivals/2097/pradosha-vrata?on=2097-12-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-12-01", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12953, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-12-01T19:09:50+03:00", "utc": "2097-12-01T16:09:50Z", "ms": 4036752589723.691 }, "end": { "local": "2097-12-02T20:38:57+03:00", "utc": "2097-12-02T17:38:57Z", "ms": 4036844337085.999 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-01T19:09:50+03:00", "utc": "2097-12-01T16:09:50Z", "ms": 4036752589723.691 }, "end": { "local": "2097-12-02T20:38:57+03:00", "utc": "2097-12-02T17:38:57Z", "ms": 4036844337085.999 } }, "kaala": "nishita", "days": [ { "local_date": "2097-12-01", "window": { "start": { "local": "2097-12-02T00:14:27+03:00", "utc": "2097-12-01T21:14:27Z", "ms": 4036770867250.449 }, "end": { "local": "2097-12-02T01:02:27+03:00", "utc": "2097-12-01T22:02:27Z", "ms": 4036773747250.449 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-12-02", "window": { "start": { "local": "2097-12-03T00:14:50+03:00", "utc": "2097-12-02T21:14:50Z", "ms": 4036857290238.1094 }, "end": { "local": "2097-12-03T01:02:50+03:00", "utc": "2097-12-02T22:02:50Z", "ms": 4036860170238.1094 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:10 on Sun 1 Dec to 20:39 on Mon 2 Dec.", "fact": "2097-12-01T16:09:50Z → 2097-12-02T17:38:57Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:14–01:02 on the 1st, 00:15–01:03 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "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 12953 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Sunday 1 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": "2097-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-01", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Sunday 1 December. Caturdaśī runs from 19:10 on Sun 1 Dec to 20:39 on Mon 2 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-12-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/vinayaka-chaturthi?on=2097-12-07", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15140, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-12-07T05:29:01+03:00", "utc": "2097-12-07T02:29:01Z", "ms": 4037221741025.8286 }, "end": { "local": "2097-12-08T08:04:35+03:00", "utc": "2097-12-08T05:04:35Z", "ms": 4037317474542.8403 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-07T05:29:01+03:00", "utc": "2097-12-07T02:29:01Z", "ms": 4037221741025.8286 }, "end": { "local": "2097-12-08T08:04:35+03:00", "utc": "2097-12-08T05:04:35Z", "ms": 4037317474542.8403 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-12-07", "window": { "start": { "local": "2097-12-07T12:16:27+03:00", "utc": "2097-12-07T09:16:27Z", "ms": 4037246187445.421 }, "end": { "local": "2097-12-07T13:04:27+03:00", "utc": "2097-12-07T10:04:27Z", "ms": 4037249067445.421 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-12-08", "window": { "start": { "local": "2097-12-08T12:16:54+03:00", "utc": "2097-12-08T09:16:54Z", "ms": 4037332614205.493 }, "end": { "local": "2097-12-08T13:04:54+03:00", "utc": "2097-12-08T10:04:54Z", "ms": 4037335494205.493 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:29 on Sat 7 Dec to 08:05 on Sun 8 Dec.", "fact": "2097-12-07T02:29:01Z → 2097-12-08T05:04:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:16–13:04 on the 7th, 12:17–13:05 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15140 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Ankara, 2097: Saturday 7 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": "2097-12-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-07", "confidence": "determinate" } ], "quote": "In Ankara, Vināyaka Caturthī 2097 falls on Saturday 7 December. Caturthī runs from 05:29 on Sat 7 Dec to 08:05 on Sun 8 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/vinayaka-chaturthi?on=2097-12-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6122, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2097-12-08T08:04:35+03:00", "utc": "2097-12-08T05:04:35Z", "ms": 4037317474542.8403 }, "end": { "local": "2097-12-09T10:35:19+03:00", "utc": "2097-12-09T07:35:19Z", "ms": 4037412919269.725 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-08T08:04:35+03:00", "utc": "2097-12-08T05:04:35Z", "ms": 4037317474542.8403 }, "end": { "local": "2097-12-09T10:35:19+03:00", "utc": "2097-12-09T07:35:19Z", "ms": 4037412919269.725 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-12-08", "window": { "start": { "local": "2097-12-08T12:16:54+03:00", "utc": "2097-12-08T09:16:54Z", "ms": 4037332614205.493 }, "end": { "local": "2097-12-08T13:04:54+03:00", "utc": "2097-12-08T10:04:54Z", "ms": 4037335494205.493 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-12-09", "window": { "start": { "local": "2097-12-09T12:17:21+03:00", "utc": "2097-12-09T09:17:21Z", "ms": 4037419041403.593 }, "end": { "local": "2097-12-09T13:05:21+03:00", "utc": "2097-12-09T10:05:21Z", "ms": 4037421921403.593 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 08:05 on Sun 8 Dec to 10:35 on Mon 9 Dec.", "fact": "2097-12-08T05:04:35Z → 2097-12-09T07:35:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 8th, 12:17–13:05 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6122 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Ankara, 2097: Sunday 8 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": "2097-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-08", "confidence": "determinate" } ], "quote": "In Ankara, Nāga Pañcamī (Mārgaśīrṣa) 2097 falls on Sunday 8 December. Pañcamī runs from 08:05 on Sun 8 Dec to 10:35 on Mon 9 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 902, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2097-12-09T10:35:19+03:00", "utc": "2097-12-09T07:35:19Z", "ms": 4037412919269.725 }, "end": { "local": "2097-12-10T12:50:47+03:00", "utc": "2097-12-10T09:50:47Z", "ms": 4037507447161.54 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-09T10:35:19+03:00", "utc": "2097-12-09T07:35:19Z", "ms": 4037412919269.725 }, "end": { "local": "2097-12-10T12:50:47+03:00", "utc": "2097-12-10T09:50:47Z", "ms": 4037507447161.54 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-12-09", "window": { "start": { "local": "2097-12-09T12:17:21+03:00", "utc": "2097-12-09T09:17:21Z", "ms": 4037419041403.593 }, "end": { "local": "2097-12-09T13:05:21+03:00", "utc": "2097-12-09T10:05:21Z", "ms": 4037421921403.593 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-12-10", "window": { "start": { "local": "2097-12-10T12:17:49+03:00", "utc": "2097-12-10T09:17:49Z", "ms": 4037505469008.101 }, "end": { "local": "2097-12-10T13:05:49+03:00", "utc": "2097-12-10T10:05:49Z", "ms": 4037508349008.101 } }, "covered_min": 33, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:35 on Mon 9 Dec to 12:51 on Tue 10 Dec.", "fact": "2097-12-09T07:35:19Z → 2097-12-10T09:50:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 9th, 12:18–13:06 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 48 of 48 minutes on the 9th and 33 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 902 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Ankara, 2097: Monday 9 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": "2097-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-09", "confidence": "determinate" } ], "quote": "In Ankara, Skanda Ṣaṣṭhī 2097 falls on Monday 9 December. Ṣaṣṭhī runs from 10:35 on Mon 9 Dec to 12:51 on Tue 10 Dec and covers all of madhyāhna that midday. It also reaches the next midday for 33 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 902, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2097-12-09T10:35:19+03:00", "utc": "2097-12-09T07:35:19Z", "ms": 4037412919269.725 }, "end": { "local": "2097-12-10T12:50:47+03:00", "utc": "2097-12-10T09:50:47Z", "ms": 4037507447161.54 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-09T10:35:19+03:00", "utc": "2097-12-09T07:35:19Z", "ms": 4037412919269.725 }, "end": { "local": "2097-12-10T12:50:47+03:00", "utc": "2097-12-10T09:50:47Z", "ms": 4037507447161.54 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-12-09", "window": { "start": { "local": "2097-12-09T12:17:21+03:00", "utc": "2097-12-09T09:17:21Z", "ms": 4037419041403.593 }, "end": { "local": "2097-12-09T13:05:21+03:00", "utc": "2097-12-09T10:05:21Z", "ms": 4037421921403.593 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2097-12-10", "window": { "start": { "local": "2097-12-10T12:17:49+03:00", "utc": "2097-12-10T09:17:49Z", "ms": 4037505469008.101 }, "end": { "local": "2097-12-10T13:05:49+03:00", "utc": "2097-12-10T10:05:49Z", "ms": 4037508349008.101 } }, "covered_min": 33, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:35 on Mon 9 Dec to 12:51 on Tue 10 Dec.", "fact": "2097-12-09T07:35:19Z → 2097-12-10T09:50:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 9th, 12:18–13:06 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 48 of 48 minutes on the 9th and 33 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 902 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Ankara, 2097: Tuesday 10 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": "2097-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-10", "confidence": "determinate" } ], "quote": "In Ankara, Campā Ṣaṣṭhī 2097 falls on Tuesday 10 December. Ṣaṣṭhī runs from 10:35 on Mon 9 Dec to 12:51 on Tue 10 Dec and covers 33 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 902, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2097-12-10T12:50:47+03:00", "utc": "2097-12-10T09:50:47Z", "ms": 4037507447161.54 }, "end": { "local": "2097-12-11T14:39:41+03:00", "utc": "2097-12-11T11:39:41Z", "ms": 4037600380585.587 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-10T12:50:47+03:00", "utc": "2097-12-10T09:50:47Z", "ms": 4037507447161.54 }, "end": { "local": "2097-12-11T14:39:41+03:00", "utc": "2097-12-11T11:39:41Z", "ms": 4037600380585.587 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-12-10", "window": { "start": { "local": "2097-12-10T12:17:49+03:00", "utc": "2097-12-10T09:17:49Z", "ms": 4037505469008.101 }, "end": { "local": "2097-12-10T13:05:49+03:00", "utc": "2097-12-10T10:05:49Z", "ms": 4037508349008.101 } }, "covered_min": 15, "window_min": 48, "qualifies": true }, { "local_date": "2097-12-11", "window": { "start": { "local": "2097-12-11T12:18:17+03:00", "utc": "2097-12-11T09:18:17Z", "ms": 4037591896987.12 }, "end": { "local": "2097-12-11T13:06:17+03:00", "utc": "2097-12-11T10:06:17Z", "ms": 4037594776987.12 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:51 on Tue 10 Dec to 14:40 on Wed 11 Dec.", "fact": "2097-12-10T09:50:47Z → 2097-12-11T11:39:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:18–13:06 on the 10th, 12:18–13:06 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 15 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 902 s" }, { "step": "ruling", "text": "Mitra Saptamī, Ankara, 2097: Tuesday 10 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": "2097-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-10", "confidence": "determinate" } ], "quote": "In Ankara, Mitra Saptamī 2097 falls on Tuesday 10 December. Saptamī runs from 12:51 on Tue 10 Dec to 14:40 on Wed 11 Dec and covers 15 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/ekadashi?on=2097-12-15", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23796, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-12-14T15:54:27+03:00", "utc": "2097-12-14T12:54:27Z", "ms": 4037864066788.866 }, "end": { "local": "2097-12-15T14:40:27+03:00", "utc": "2097-12-15T11:40:27Z", "ms": 4037946027356.9014 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-14T15:54:27+03:00", "utc": "2097-12-14T12:54:27Z", "ms": 4037864066788.866 }, "end": { "local": "2097-12-15T14:40:27+03:00", "utc": "2097-12-15T11:40:27Z", "ms": 4037946027356.9014 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-12-14", "window": { "start": { "local": "2097-12-14T08:03:11+03:00", "utc": "2097-12-14T05:03:11Z", "ms": 4037835790540.898 }, "end": { "local": "2097-12-14T08:03:11+03:00", "utc": "2097-12-14T05:03:11Z", "ms": 4037835790540.898 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2097-12-15", "window": { "start": { "local": "2097-12-15T08:03:52+03:00", "utc": "2097-12-15T05:03:52Z", "ms": 4037922231791.644 }, "end": { "local": "2097-12-15T08:03:52+03:00", "utc": "2097-12-15T05:03:52Z", "ms": 4037922231791.644 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:54 on Sat 14 Dec to 14:40 on Sun 15 Dec.", "fact": "2097-12-14T12:54:27Z → 2097-12-15T11:40:27Z" }, { "step": "kaala", "text": "Sunrise is at 08:03 on the 14th and 08:04 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23796 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Ankara, 2097: Sunday 15 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": "2097-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-15", "confidence": "determinate" } ], "quote": "In Ankara, Mokṣadā Ekādaśī 2097 falls on Sunday 15 December. Ekādaśī runs from 15:54 on Sat 14 Dec to 14:40 on Sun 15 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-12-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1107, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2097-12-15T14:40:27+03:00", "utc": "2097-12-15T11:40:27Z", "ms": 4037946027356.9014 }, "end": { "local": "2097-12-16T12:39:09+03:00", "utc": "2097-12-16T09:39:09Z", "ms": 4038025148780.464 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-15T14:40:27+03:00", "utc": "2097-12-15T11:40:27Z", "ms": 4037946027356.9014 }, "end": { "local": "2097-12-16T12:39:09+03:00", "utc": "2097-12-16T09:39:09Z", "ms": 4038025148780.464 } }, "kaala": "madhyahna", "days": [ { "local_date": "2097-12-15", "window": { "start": { "local": "2097-12-15T12:20:12+03:00", "utc": "2097-12-15T09:20:12Z", "ms": 4037937612008.3037 }, "end": { "local": "2097-12-15T13:08:12+03:00", "utc": "2097-12-15T10:08:12Z", "ms": 4037940492008.3037 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2097-12-16", "window": { "start": { "local": "2097-12-16T12:20:41+03:00", "utc": "2097-12-16T09:20:41Z", "ms": 4038024041382.0894 }, "end": { "local": "2097-12-16T13:08:41+03:00", "utc": "2097-12-16T10:08:41Z", "ms": 4038026921382.0894 } }, "covered_min": 18, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:40 on Sun 15 Dec to 12:39 on Mon 16 Dec.", "fact": "2097-12-15T11:40:27Z → 2097-12-16T09:39:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 15th, 12:21–13:09 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 18 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1107 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Ankara, 2097: Monday 16 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": "2097-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-16", "confidence": "determinate" } ], "quote": "In Ankara, Akhaṇḍa Dvādaśī 2097 falls on Monday 16 December. Dvādaśī runs from 14:40 on Sun 15 Dec to 12:39 on Mon 16 Dec and covers 18 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/ankara/festivals/2097/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": "/ankara/festivals/2097/pradosha-vrata?on=2097-12-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17143, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-12-16T12:39:09+03:00", "utc": "2097-12-16T09:39:09Z", "ms": 4038025148780.464 }, "end": { "local": "2097-12-17T09:56:53+03:00", "utc": "2097-12-17T06:56:53Z", "ms": 4038101812760.5747 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-16T12:39:09+03:00", "utc": "2097-12-16T09:39:09Z", "ms": 4038025148780.464 }, "end": { "local": "2097-12-17T09:56:53+03:00", "utc": "2097-12-17T06:56:53Z", "ms": 4038101812760.5747 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-12-16", "window": { "start": { "local": "2097-12-16T17:24:51+03:00", "utc": "2097-12-16T14:24:51Z", "ms": 4038042291437.5645 }, "end": { "local": "2097-12-16T19:22:14+03:00", "utc": "2097-12-16T16:22:14Z", "ms": 4038049333793.389 } }, "covered_min": 117, "window_min": 117, "qualifies": true }, { "local_date": "2097-12-17", "window": { "start": { "local": "2097-12-17T17:25:13+03:00", "utc": "2097-12-17T14:25:13Z", "ms": 4038128712778.1504 }, "end": { "local": "2097-12-17T19:22:37+03:00", "utc": "2097-12-17T16:22:37Z", "ms": 4038135757086.9116 } }, "covered_min": 0, "window_min": 117, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:39 on Mon 16 Dec to 09:57 on Tue 17 Dec.", "fact": "2097-12-16T09:39:09Z → 2097-12-17T06:56:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:25–19:22 on the 16th, 17:25–19:23 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 117 of 117 minutes on the 16th and 0 of 117 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 17143 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Ankara, 2097: Monday 16 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": "2097-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-16", "confidence": "determinate" } ], "quote": "In Ankara, Śukla Pradoṣa Vrata 2097 falls on Monday 16 December. Trayodaśī runs from 12:39 on Mon 16 Dec to 09:57 on Tue 17 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-12-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27765, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2097-12-18T06:42:21+03:00", "utc": "2097-12-18T03:42:21Z", "ms": 4038176540879.227 }, "end": { "local": "2097-12-19T03:05:47+03:00", "utc": "2097-12-19T00:05:47Z", "ms": 4038249947424.6484 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-18T06:42:21+03:00", "utc": "2097-12-18T03:42:21Z", "ms": 4038176540879.227 }, "end": { "local": "2097-12-19T03:05:47+03:00", "utc": "2097-12-19T00:05:47Z", "ms": 4038249947424.6484 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-12-17", "window": { "start": { "local": "2097-12-17T17:25:13+03:00", "utc": "2097-12-17T14:25:13Z", "ms": 4038128712778.1504 }, "end": { "local": "2097-12-17T19:22:37+03:00", "utc": "2097-12-17T16:22:37Z", "ms": 4038135757086.9116 } }, "covered_min": 0, "window_min": 117, "qualifies": false }, { "local_date": "2097-12-18", "window": { "start": { "local": "2097-12-18T17:25:36+03:00", "utc": "2097-12-18T14:25:36Z", "ms": 4038215136225.072 }, "end": { "local": "2097-12-18T19:23:02+03:00", "utc": "2097-12-18T16:23:02Z", "ms": 4038222181962.405 } }, "covered_min": 117, "window_min": 117, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:42 on Wed 18 Dec to 03:06 on Thu 19 Dec.", "fact": "2097-12-18T03:42:21Z → 2097-12-19T00:05:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:25–19:23 on the 17th, 17:26–19:23 on the 18th.", "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 117 minutes on the 17th and 117 of 117 on the 18th.", "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 27765 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Ankara, 2097: Wednesday 18 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": "2097-12-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-18", "confidence": "determinate" } ], "quote": "In Ankara, Dattātreyotpatti (Datta Jayanti) 2097 falls on Wednesday 18 December. Pūrṇimā runs from 06:42 on Wed 18 Dec to 03:06 on Thu 19 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/dattatreyotpatti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/sankashta-chaturthi?on=2097-12-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15661, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2097-12-21T15:56:17+03:00", "utc": "2097-12-21T12:56:17Z", "ms": 4038468977400.7915 }, "end": { "local": "2097-12-22T12:43:38+03:00", "utc": "2097-12-22T09:43:38Z", "ms": 4038543817526.6313 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-21T15:56:17+03:00", "utc": "2097-12-21T12:56:17Z", "ms": 4038468977400.7915 }, "end": { "local": "2097-12-22T12:43:38+03:00", "utc": "2097-12-22T09:43:38Z", "ms": 4038543817526.6313 } }, "kaala": "moonrise", "days": [ { "local_date": "2097-12-21", "window": { "start": { "local": "2097-12-21T20:17:19+03:00", "utc": "2097-12-21T17:17:19Z", "ms": 4038484638862.57 }, "end": { "local": "2097-12-21T20:17:19+03:00", "utc": "2097-12-21T17:17:19Z", "ms": 4038484638862.57 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-12-22", "window": { "start": { "local": "2097-12-22T21:35:59+03:00", "utc": "2097-12-22T18:35:59Z", "ms": 4038575759236.643 }, "end": { "local": "2097-12-22T21:35:59+03:00", "utc": "2097-12-22T18:35:59Z", "ms": 4038575759236.643 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:56 on Sat 21 Dec to 12:44 on Sun 22 Dec.", "fact": "2097-12-21T12:56:17Z → 2097-12-22T09:43:38Z" }, { "step": "kaala", "text": "Moonrise is at 20:17 on the 21st and 21:36 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 21st and is not on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15661 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Ankara, 2097: Saturday 21 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2097-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-21", "confidence": "determinate" } ], "quote": "In Ankara, Saṅkaṣṭa Caturthī 2097 falls on Saturday 21 December. Caturthī runs from 15:56 on Sat 21 Dec to 12:44 on Sun 22 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/sankashta-chaturthi?on=2097-12-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/ekadashi?on=2097-12-29", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1971, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2097-12-28T07:17:35+03:00", "utc": "2097-12-28T04:17:35Z", "ms": 4039042654733.2847 }, "end": { "local": "2097-12-29T08:43:05+03:00", "utc": "2097-12-29T05:43:05Z", "ms": 4039134184964.6367 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-28T07:17:35+03:00", "utc": "2097-12-28T04:17:35Z", "ms": 4039042654733.2847 }, "end": { "local": "2097-12-29T08:43:05+03:00", "utc": "2097-12-29T05:43:05Z", "ms": 4039134184964.6367 } }, "kaala": "sunrise", "days": [ { "local_date": "2097-12-28", "window": { "start": { "local": "2097-12-28T08:09:59+03:00", "utc": "2097-12-28T05:09:59Z", "ms": 4039045799340.933 }, "end": { "local": "2097-12-28T08:09:59+03:00", "utc": "2097-12-28T05:09:59Z", "ms": 4039045799340.933 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2097-12-29", "window": { "start": { "local": "2097-12-29T08:10:14+03:00", "utc": "2097-12-29T05:10:14Z", "ms": 4039132213563.1753 }, "end": { "local": "2097-12-29T08:10:14+03:00", "utc": "2097-12-29T05:10:14Z", "ms": 4039132213563.1753 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:18 on Sat 28 Dec to 08:43 on Sun 29 Dec.", "fact": "2097-12-28T04:17:35Z → 2097-12-29T05:43:05Z" }, { "step": "kaala", "text": "Sunrise is at 08:10 on the 28th and 08:10 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 28th and is on the 29th.", "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 1971 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Ankara, 2097: Sunday 29 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": "2097-12-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-29", "confidence": "determinate" } ], "quote": "In Ankara, Saphalā Ekādaśī 2097 falls on Sunday 29 December. Ekādaśī runs from 07:18 on Sat 28 Dec to 08:43 on Sun 29 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/ankara/festivals/2097/ekadashi?on=2097-12-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/pradosha-vrata?on=2097-12-30", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17417, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2097-12-30T10:34:05+03:00", "utc": "2097-12-30T07:34:05Z", "ms": 4039227244500.9004 }, "end": { "local": "2097-12-31T12:43:23+03:00", "utc": "2097-12-31T09:43:23Z", "ms": 4039321403196.479 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-30T10:34:05+03:00", "utc": "2097-12-30T07:34:05Z", "ms": 4039227244500.9004 }, "end": { "local": "2097-12-31T12:43:23+03:00", "utc": "2097-12-31T09:43:23Z", "ms": 4039321403196.479 } }, "kaala": "pradosha", "days": [ { "local_date": "2097-12-30", "window": { "start": { "local": "2097-12-30T17:32:52+03:00", "utc": "2097-12-30T14:32:52Z", "ms": 4039252371712.4463 }, "end": { "local": "2097-12-30T19:29:54+03:00", "utc": "2097-12-30T16:29:54Z", "ms": 4039259393561.492 } }, "covered_min": 117, "window_min": 117, "qualifies": true }, { "local_date": "2097-12-31", "window": { "start": { "local": "2097-12-31T17:33:40+03:00", "utc": "2097-12-31T14:33:40Z", "ms": 4039338819696.9 }, "end": { "local": "2097-12-31T19:30:36+03:00", "utc": "2097-12-31T16:30:36Z", "ms": 4039345836182.5156 } }, "covered_min": 0, "window_min": 117, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:34 on Mon 30 Dec to 12:43 on Tue 31 Dec.", "fact": "2097-12-30T07:34:05Z → 2097-12-31T09:43:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:33–19:30 on the 30th, 17:34–19:31 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 117 of 117 minutes on the 30th and 0 of 117 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17417 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Ankara, 2097: Monday 30 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": "2097-12-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-30", "confidence": "determinate" } ], "quote": "In Ankara, Kṛṣṇa Pradoṣa Vrata 2097 falls on Monday 30 December. Trayodaśī runs from 10:34 on Mon 30 Dec to 12:43 on Tue 31 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/ankara/festivals/2097/pradosha-vrata?on=2097-12-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/ankara/festivals/2097/shivaratri?on=2097-12-31", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "323786", "year": 2097, "local_date": "2097-12-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33820, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2097-12-31T12:43:23+03:00", "utc": "2097-12-31T09:43:23Z", "ms": 4039321403196.479 }, "end": { "local": "2098-01-01T15:04:59+03:00", "utc": "2098-01-01T12:04:59Z", "ms": 4039416299158.475 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2097-12-31T12:43:23+03:00", "utc": "2097-12-31T09:43:23Z", "ms": 4039321403196.479 }, "end": { "local": "2098-01-01T15:04:59+03:00", "utc": "2098-01-01T12:04:59Z", "ms": 4039416299158.475 } }, "kaala": "nishita", "days": [ { "local_date": "2097-12-31", "window": { "start": { "local": "2098-01-01T00:28:12+03:00", "utc": "2097-12-31T21:28:12Z", "ms": 4039363691517.958 }, "end": { "local": "2098-01-01T01:16:12+03:00", "utc": "2097-12-31T22:16:12Z", "ms": 4039366571517.958 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2098-01-01", "window": { "start": { "local": "2098-01-02T00:28:39+03:00", "utc": "2098-01-01T21:28:39Z", "ms": 4039450119083.7236 }, "end": { "local": "2098-01-02T01:16:39+03:00", "utc": "2098-01-01T22:16:39Z", "ms": 4039452999083.7236 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:43 on Tue 31 Dec to 15:05 on Wed 1 Jan.", "fact": "2097-12-31T09:43:23Z → 2098-01-01T12:04:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 31st, 00:29–01:17 on the 1st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33820 s" }, { "step": "ruling", "text": "Śivarātri, Ankara, 2097: Tuesday 31 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": "2097-12-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2097-12-31", "confidence": "determinate" } ], "quote": "In Ankara, Śivarātri 2097 falls on Tuesday 31 December. Caturdaśī runs from 12:43 on Tue 31 Dec to 15:05 on Wed 1 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/ankara/festivals/2097/shivaratri?on=2097-12-31", "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" } }