{ "id": "/cairo/festivals/2003", "place": { "id": "360630", "slug": "cairo", "name": "Cairo", "region": "Egypt", "country": "EG", "lat": 30.06263, "lon": 31.24967, "elevation_m": 23, "tz": "Africa/Cairo" }, "year": 2003, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/cairo/festivals/2003/shivaratri?on=2003-01-01", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 877, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-01-01T02:11:02+02:00", "utc": "2003-01-01T00:11:02Z", "ms": 1041379862208.6173 }, "end": { "local": "2003-01-02T00:07:56+02:00", "utc": "2003-01-01T22:07:56Z", "ms": 1041458875919.3638 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-01-01T02:11:02+02:00", "utc": "2003-01-01T00:11:02Z", "ms": 1041379862208.6173 }, "end": { "local": "2003-01-02T00:07:56+02:00", "utc": "2003-01-01T22:07:56Z", "ms": 1041458875919.3638 } }, "kaala": "nishita", "days": [ { "local_date": "2002-12-31", "window": { "start": { "local": "2002-12-31T23:34:05+02:00", "utc": "2002-12-31T21:34:05Z", "ms": 1041370444733.2997 }, "end": { "local": "2003-01-01T00:22:05+02:00", "utc": "2002-12-31T22:22:05Z", "ms": 1041373324733.2997 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-01-01", "window": { "start": { "local": "2003-01-01T23:34:33+02:00", "utc": "2003-01-01T21:34:33Z", "ms": 1041456872878.8733 }, "end": { "local": "2003-01-02T00:22:33+02:00", "utc": "2003-01-01T22:22:33Z", "ms": 1041459752878.8733 } }, "covered_min": 33, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:11 on Wed 1 Jan to 00:08 on Thu 2 Jan.", "fact": "2003-01-01T00:11:02Z → 2003-01-01T22:07:56Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:34–00:22 on the 31st, 23:35–00:23 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 0 of 48 minutes on the 31st and 33 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 877 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Wednesday 1 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": "2003-01-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-01", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Wednesday 1 January. Caturdaśī runs from 02:11 on Wed 1 Jan to 00:08 on Thu 2 Jan and covers 33 of 48 minutes of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-01-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-01-06", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27584, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-01-05T20:04:02+02:00", "utc": "2003-01-05T18:04:02Z", "ms": 1041789842088.6278 }, "end": { "local": "2003-01-06T20:34:47+02:00", "utc": "2003-01-06T18:34:47Z", "ms": 1041878087018.7996 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-01-05T20:04:02+02:00", "utc": "2003-01-05T18:04:02Z", "ms": 1041789842088.6278 }, "end": { "local": "2003-01-06T20:34:47+02:00", "utc": "2003-01-06T18:34:47Z", "ms": 1041878087018.7996 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-01-05", "window": { "start": { "local": "2003-01-05T11:36:18+02:00", "utc": "2003-01-05T09:36:18Z", "ms": 1041759377863.8329 }, "end": { "local": "2003-01-05T12:24:18+02:00", "utc": "2003-01-05T10:24:18Z", "ms": 1041762257863.8329 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-01-06", "window": { "start": { "local": "2003-01-06T11:36:45+02:00", "utc": "2003-01-06T09:36:45Z", "ms": 1041845804906.0925 }, "end": { "local": "2003-01-06T12:24:45+02:00", "utc": "2003-01-06T10:24:45Z", "ms": 1041848684906.0925 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:04 on Sun 5 Jan to 20:35 on Mon 6 Jan.", "fact": "2003-01-05T18:04:02Z → 2003-01-06T18:34:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 5th, 11:37–12:25 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27584 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Monday 6 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": "2003-01-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-06", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Monday 6 January. Caturthī runs from 20:04 on Sun 5 Jan to 20:35 on Mon 6 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-01-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11917, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 }, "end": { "local": "2003-02-13T02:54:53+02:00", "utc": "2003-02-13T00:54:53Z", "ms": 1045097693113.599 } }, "span": { "of": "transit", "start": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 }, "end": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 } }, "kaala": "sunset-day", "days": [ { "local_date": "2003-01-14", "window": { "start": { "local": "2003-01-13T17:14:58+02:00", "utc": "2003-01-13T15:14:58Z", "ms": 1042470897646.1277 }, "end": { "local": "2003-01-14T17:15:48+02:00", "utc": "2003-01-14T15:15:48Z", "ms": 1042557347982.8413 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2003-01-15", "window": { "start": { "local": "2003-01-14T17:15:48+02:00", "utc": "2003-01-14T15:15:48Z", "ms": 1042557347982.8413 }, "end": { "local": "2003-01-15T17:16:39+02:00", "utc": "2003-01-15T15:16:39Z", "ms": 1042643798679.5162 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2003-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 13:57 on Tue 14 Jan.", "fact": "2003-01-14T11:57:11Z · 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 17:16, and the day of the 15th ends at 17:17.", "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 11917 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Tuesday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Cairo, 2003: Monday 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": "2003-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2003-01-13", "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": "2003-01-13", "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 Cairo, Bhogi 2003 falls on Monday 13 January. It is kept the day before Pongal, which falls on Tuesday 14 January. The Sun enters Makara at 13:57 on Tue 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/cairo/festivals/2003/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": "/cairo/festivals/2003/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11917, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 }, "end": { "local": "2003-02-13T02:54:53+02:00", "utc": "2003-02-13T00:54:53Z", "ms": 1045097693113.599 } }, "span": { "of": "transit", "start": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 }, "end": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 } }, "kaala": "sunset-day", "days": [ { "local_date": "2003-01-14", "window": { "start": { "local": "2003-01-13T17:14:58+02:00", "utc": "2003-01-13T15:14:58Z", "ms": 1042470897646.1277 }, "end": { "local": "2003-01-14T17:15:48+02:00", "utc": "2003-01-14T15:15:48Z", "ms": 1042557347982.8413 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2003-01-15", "window": { "start": { "local": "2003-01-14T17:15:48+02:00", "utc": "2003-01-14T15:15:48Z", "ms": 1042557347982.8413 }, "end": { "local": "2003-01-15T17:16:39+02:00", "utc": "2003-01-15T15:16:39Z", "ms": 1042643798679.5162 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 13:57 on Tue 14 Jan.", "fact": "2003-01-14T11:57:11Z · 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 17:16, and the day of the 15th ends at 17:17.", "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 11917 s" }, { "step": "ruling", "text": "Pongal, Cairo, 2003: Tuesday 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": "2003-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2003-01-14", "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": "2003-01-14", "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 Cairo, Pongal 2003 falls on Tuesday 14 January. The Sun enters Makara at 13:57 on Tue 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/cairo/festivals/2003/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": "/cairo/festivals/2003/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36169, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 }, "end": { "local": "2003-02-13T02:54:53+02:00", "utc": "2003-02-13T00:54:53Z", "ms": 1045097693113.599 } }, "span": { "of": "transit", "start": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 }, "end": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 } }, "kaala": "civil-day", "days": [ { "local_date": "2003-01-14", "window": { "start": { "local": "2003-01-14T00:00:00+02:00", "utc": "2003-01-13T22:00:00Z", "ms": 1042495200000 }, "end": { "local": "2003-01-15T00:00:00+02:00", "utc": "2003-01-14T22:00:00Z", "ms": 1042581600000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2003-01-15", "window": { "start": { "local": "2003-01-15T00:00:00+02:00", "utc": "2003-01-14T22:00:00Z", "ms": 1042581600000 }, "end": { "local": "2003-01-16T00:00:00+02:00", "utc": "2003-01-15T22:00:00Z", "ms": 1042668000000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 13:57 on Tue 14 Jan.", "fact": "2003-01-14T11:57:11Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Cairo.", "fact": "civil-day: midnight-to-midnight · Africa/Cairo" }, { "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 36169 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Cairo, 2003: Tuesday 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": "2003-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2003-01-14", "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": "2003-01-14", "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 Cairo, Makara Saṅkrānti 2003 falls on Tuesday 14 January. The Sun enters Makara at 13:57 on Tue 14 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-01-14", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9805, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-01-13T09:35:46+02:00", "utc": "2003-01-13T07:35:46Z", "ms": 1042443345722.5829 }, "end": { "local": "2003-01-14T11:31:59+02:00", "utc": "2003-01-14T09:31:59Z", "ms": 1042536719156.8035 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-01-13T09:35:46+02:00", "utc": "2003-01-13T07:35:46Z", "ms": 1042443345722.5829 }, "end": { "local": "2003-01-14T11:31:59+02:00", "utc": "2003-01-14T09:31:59Z", "ms": 1042536719156.8035 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-01-13", "window": { "start": { "local": "2003-01-13T06:52:21+02:00", "utc": "2003-01-13T04:52:21Z", "ms": 1042433541032.2333 }, "end": { "local": "2003-01-13T06:52:21+02:00", "utc": "2003-01-13T04:52:21Z", "ms": 1042433541032.2333 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-01-14", "window": { "start": { "local": "2003-01-14T06:52:16+02:00", "utc": "2003-01-14T04:52:16Z", "ms": 1042519935699.3177 }, "end": { "local": "2003-01-14T06:52:16+02:00", "utc": "2003-01-14T04:52:16Z", "ms": 1042519935699.3177 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:36 on Mon 13 Jan to 11:32 on Tue 14 Jan.", "fact": "2003-01-13T07:35:46Z → 2003-01-14T09:31:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 13th and 06:52 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9805 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Cairo, 2003: Tuesday 14 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": "2003-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-14", "confidence": "determinate" } ], "quote": "In Cairo, Putradā Ekādaśī 2003 falls on Tuesday 14 January. Ekādaśī runs from 09:36 on Mon 13 Jan to 11:32 on Tue 14 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-01-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11917, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 }, "end": { "local": "2003-02-13T02:54:53+02:00", "utc": "2003-02-13T00:54:53Z", "ms": 1045097693113.599 } }, "span": { "of": "transit", "start": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 }, "end": { "local": "2003-01-14T13:57:11+02:00", "utc": "2003-01-14T11:57:11Z", "ms": 1042545431223.2748 } }, "kaala": "sunset-day", "days": [ { "local_date": "2003-01-14", "window": { "start": { "local": "2003-01-13T17:14:58+02:00", "utc": "2003-01-13T15:14:58Z", "ms": 1042470897646.1277 }, "end": { "local": "2003-01-14T17:15:48+02:00", "utc": "2003-01-14T15:15:48Z", "ms": 1042557347982.8413 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2003-01-15", "window": { "start": { "local": "2003-01-14T17:15:48+02:00", "utc": "2003-01-14T15:15:48Z", "ms": 1042557347982.8413 }, "end": { "local": "2003-01-15T17:16:39+02:00", "utc": "2003-01-15T15:16:39Z", "ms": 1042643798679.5162 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2003-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 13:57 on Tue 14 Jan.", "fact": "2003-01-14T11:57:11Z · 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 17:16, and the day of the 15th ends at 17:17.", "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 11917 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Tuesday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Cairo, 2003: Wednesday 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": "2003-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2003-01-15", "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": "2003-01-15", "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 Cairo, Mattu Pongal 2003 falls on Wednesday 15 January. It is kept the day after Pongal, which falls on Tuesday 14 January. The Sun enters Makara at 13:57 on Tue 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/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-01-15", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13635, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-01-15T12:51:38+02:00", "utc": "2003-01-15T10:51:38Z", "ms": 1042627897592.037 }, "end": { "local": "2003-01-16T13:30:15+02:00", "utc": "2003-01-16T11:30:15Z", "ms": 1042716614716.0397 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-01-15T12:51:38+02:00", "utc": "2003-01-15T10:51:38Z", "ms": 1042627897592.037 }, "end": { "local": "2003-01-16T13:30:15+02:00", "utc": "2003-01-16T11:30:15Z", "ms": 1042716614716.0397 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-01-15", "window": { "start": { "local": "2003-01-15T17:16:39+02:00", "utc": "2003-01-15T15:16:39Z", "ms": 1042643798679.5162 }, "end": { "local": "2003-01-15T19:05:22+02:00", "utc": "2003-01-15T17:05:22Z", "ms": 1042650321517.6245 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "2003-01-16", "window": { "start": { "local": "2003-01-16T17:17:30+02:00", "utc": "2003-01-16T15:17:30Z", "ms": 1042730249697.8923 }, "end": { "local": "2003-01-16T19:06:04+02:00", "utc": "2003-01-16T17:06:04Z", "ms": 1042736764348.4795 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:52 on Wed 15 Jan to 13:30 on Thu 16 Jan.", "fact": "2003-01-15T10:51:38Z → 2003-01-16T11:30:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:17–19:05 on the 15th, 17:17–19:06 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 109 of 109 minutes on the 15th and 0 of 109 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13635 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Wednesday 15 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": "2003-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-15", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Wednesday 15 January. Trayodaśī runs from 12:52 on Wed 15 Jan to 13:30 on Thu 16 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-01-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-01-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33605, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-01-21T08:03:51+02:00", "utc": "2003-01-21T06:03:51Z", "ms": 1043129031256.7092 }, "end": { "local": "2003-01-22T05:58:32+02:00", "utc": "2003-01-22T03:58:32Z", "ms": 1043207911747.1466 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-01-21T08:03:51+02:00", "utc": "2003-01-21T06:03:51Z", "ms": 1043129031256.7092 }, "end": { "local": "2003-01-22T05:58:32+02:00", "utc": "2003-01-22T03:58:32Z", "ms": 1043207911747.1466 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-01-20", "window": { "start": { "local": "2003-01-20T19:32:49+02:00", "utc": "2003-01-20T17:32:49Z", "ms": 1043083969182.864 }, "end": { "local": "2003-01-20T19:32:49+02:00", "utc": "2003-01-20T17:32:49Z", "ms": 1043083969182.864 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-01-21", "window": { "start": { "local": "2003-01-21T20:38:27+02:00", "utc": "2003-01-21T18:38:27Z", "ms": 1043174306781.0828 }, "end": { "local": "2003-01-21T20:38:27+02:00", "utc": "2003-01-21T18:38:27Z", "ms": 1043174306781.0828 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:04 on Tue 21 Jan to 05:59 on Wed 22 Jan.", "fact": "2003-01-21T06:03:51Z → 2003-01-22T03:58:32Z" }, { "step": "kaala", "text": "Moonrise is at 19:33 on the 20th and 20:38 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 20th and is on the 21st.", "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 33605 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Tuesday 21 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": "2003-01-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-21", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Tuesday 21 January. Caturthī runs from 08:04 on Tue 21 Jan to 05:59 on Wed 22 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-01-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-01-28", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34777, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-01-27T18:00:23+02:00", "utc": "2003-01-27T16:00:23Z", "ms": 1043683223071.9349 }, "end": { "local": "2003-01-28T16:27:45+02:00", "utc": "2003-01-28T14:27:45Z", "ms": 1043764064916.6149 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-01-27T18:00:23+02:00", "utc": "2003-01-27T16:00:23Z", "ms": 1043683223071.9349 }, "end": { "local": "2003-01-28T16:27:45+02:00", "utc": "2003-01-28T14:27:45Z", "ms": 1043764064916.6149 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-01-27", "window": { "start": { "local": "2003-01-27T06:48:36+02:00", "utc": "2003-01-27T04:48:36Z", "ms": 1043642916040.7268 }, "end": { "local": "2003-01-27T06:48:36+02:00", "utc": "2003-01-27T04:48:36Z", "ms": 1043642916040.7268 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-01-28", "window": { "start": { "local": "2003-01-28T06:48:08+02:00", "utc": "2003-01-28T04:48:08Z", "ms": 1043729288039.6655 }, "end": { "local": "2003-01-28T06:48:08+02:00", "utc": "2003-01-28T04:48:08Z", "ms": 1043729288039.6655 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:00 on Mon 27 Jan to 16:28 on Tue 28 Jan.", "fact": "2003-01-27T16:00:23Z → 2003-01-28T14:27:45Z" }, { "step": "kaala", "text": "Sunrise is at 06:49 on the 27th and 06:48 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34777 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Cairo, 2003: Tuesday 28 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": "2003-01-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-28", "confidence": "determinate" } ], "quote": "In Cairo, Ṣaṭtilā Ekādaśī 2003 falls on Tuesday 28 January. Ekādaśī runs from 18:00 on Mon 27 Jan to 16:28 on Tue 28 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-01-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-01-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8512, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-01-29T15:06:56+02:00", "utc": "2003-01-29T13:06:56Z", "ms": 1043845615511.7131 }, "end": { "local": "2003-01-30T14:00:43+02:00", "utc": "2003-01-30T12:00:43Z", "ms": 1043928043264.1061 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-01-29T15:06:56+02:00", "utc": "2003-01-29T13:06:56Z", "ms": 1043845615511.7131 }, "end": { "local": "2003-01-30T14:00:43+02:00", "utc": "2003-01-30T12:00:43Z", "ms": 1043928043264.1061 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-01-29", "window": { "start": { "local": "2003-01-29T17:28:47+02:00", "utc": "2003-01-29T15:28:47Z", "ms": 1043854127211.9039 }, "end": { "local": "2003-01-29T19:15:14+02:00", "utc": "2003-01-29T17:15:14Z", "ms": 1043860513920.1082 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "2003-01-30", "window": { "start": { "local": "2003-01-30T17:29:39+02:00", "utc": "2003-01-30T15:29:39Z", "ms": 1043940579356.4694 }, "end": { "local": "2003-01-30T19:15:55+02:00", "utc": "2003-01-30T17:15:55Z", "ms": 1043946954781.0076 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:07 on Wed 29 Jan to 14:01 on Thu 30 Jan.", "fact": "2003-01-29T13:06:56Z → 2003-01-30T12:00:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:29–19:15 on the 29th, 17:30–19:16 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 29th and 0 of 106 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8512 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Wednesday 29 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": "2003-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-29", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Wednesday 29 January. Trayodaśī runs from 15:07 on Wed 29 Jan to 14:01 on Thu 30 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-01-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-01-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35004, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-01-30T14:00:43+02:00", "utc": "2003-01-30T12:00:43Z", "ms": 1043928043264.1061 }, "end": { "local": "2003-01-31T13:12:59+02:00", "utc": "2003-01-31T11:12:59Z", "ms": 1044011579294.2612 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-01-30T14:00:43+02:00", "utc": "2003-01-30T12:00:43Z", "ms": 1043928043264.1061 }, "end": { "local": "2003-01-31T13:12:59+02:00", "utc": "2003-01-31T11:12:59Z", "ms": 1044011579294.2612 } }, "kaala": "nishita", "days": [ { "local_date": "2003-01-30", "window": { "start": { "local": "2003-01-30T23:44:07+02:00", "utc": "2003-01-30T21:44:07Z", "ms": 1043963047198.4875 }, "end": { "local": "2003-01-31T00:32:07+02:00", "utc": "2003-01-30T22:32:07Z", "ms": 1043965927198.4875 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-01-31", "window": { "start": { "local": "2003-01-31T23:44:16+02:00", "utc": "2003-01-31T21:44:16Z", "ms": 1044049456225.0955 }, "end": { "local": "2003-02-01T00:32:16+02:00", "utc": "2003-01-31T22:32:16Z", "ms": 1044052336225.0955 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:01 on Thu 30 Jan to 13:13 on Fri 31 Jan.", "fact": "2003-01-30T12:00:43Z → 2003-01-31T11:12:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:44–00:32 on the 30th, 23:44–00:32 on the 31st.", "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 30th and 0 of 48 on the 31st.", "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 35004 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Thursday 30 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": "2003-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-30", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Thursday 30 January. Caturdaśī runs from 14:01 on Thu 30 Jan to 13:13 on Fri 31 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-01-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23184, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-01-30T14:00:43+02:00", "utc": "2003-01-30T12:00:43Z", "ms": 1043928043264.1061 }, "end": { "local": "2003-01-31T13:12:59+02:00", "utc": "2003-01-31T11:12:59Z", "ms": 1044011579294.2612 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-01-30T14:00:43+02:00", "utc": "2003-01-30T12:00:43Z", "ms": 1043928043264.1061 }, "end": { "local": "2003-01-31T13:12:59+02:00", "utc": "2003-01-31T11:12:59Z", "ms": 1044011579294.2612 } }, "kaala": "arunodaya", "days": [ { "local_date": "2003-01-30", "window": { "start": { "local": "2003-01-30T05:00:41+02:00", "utc": "2003-01-30T03:00:41Z", "ms": 1043895640815.2317 }, "end": { "local": "2003-01-30T06:47:08+02:00", "utc": "2003-01-30T04:47:08Z", "ms": 1043902027523.4359 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "2003-01-31", "window": { "start": { "local": "2003-01-31T05:00:20+02:00", "utc": "2003-01-31T03:00:20Z", "ms": 1043982019615.9674 }, "end": { "local": "2003-01-31T06:46:35+02:00", "utc": "2003-01-31T04:46:35Z", "ms": 1043988395040.5056 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:01 on Thu 30 Jan to 13:13 on Fri 31 Jan.", "fact": "2003-01-30T12:00:43Z → 2003-01-31T11:12:59Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:01–06:47 on the 30th, 05:00–06:47 on the 31st.", "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 106 minutes on the 30th and 106 of 106 on the 31st.", "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 23184 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Cairo, 2003: Friday 31 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-01-31", "confidence": "determinate" } ], "quote": "In Cairo, Yama Tarpaṇa 2003 falls on Friday 31 January. Caturdaśī runs from 14:01 on Thu 30 Jan to 13:13 on Fri 31 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4318, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-02-04T14:38:03+02:00", "utc": "2003-02-04T12:38:03Z", "ms": 1044362282527.0597 }, "end": { "local": "2003-02-05T16:22:51+02:00", "utc": "2003-02-05T14:22:51Z", "ms": 1044454970533.884 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-04T14:38:03+02:00", "utc": "2003-02-04T12:38:03Z", "ms": 1044362282527.0597 }, "end": { "local": "2003-02-05T16:22:51+02:00", "utc": "2003-02-05T14:22:51Z", "ms": 1044454970533.884 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-02-04", "window": { "start": { "local": "2003-02-04T17:33:57+02:00", "utc": "2003-02-04T15:33:57Z", "ms": 1044372837327.1816 }, "end": { "local": "2003-02-04T19:19:14+02:00", "utc": "2003-02-04T17:19:14Z", "ms": 1044379153827.2368 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "2003-02-05", "window": { "start": { "local": "2003-02-05T17:34:48+02:00", "utc": "2003-02-05T15:34:48Z", "ms": 1044459288196.8824 }, "end": { "local": "2003-02-05T19:19:52+02:00", "utc": "2003-02-05T17:19:52Z", "ms": 1044465592452.493 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:38 on Tue 4 Feb to 16:23 on Wed 5 Feb.", "fact": "2003-02-04T12:38:03Z → 2003-02-05T14:22:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:34–19:19 on the 4th, 17:35–19:20 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 105 of 105 minutes on the 4th and 0 of 105 on the 5th.", "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 4318 s" }, { "step": "ruling", "text": "Tila Caturthī, Cairo, 2003: Tuesday 4 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": "2003-02-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-04", "confidence": "determinate" } ], "quote": "In Cairo, Tila Caturthī 2003 falls on Tuesday 4 February. Caturthī runs from 14:38 on Tue 4 Feb to 16:23 on Wed 5 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7499, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-02-04T14:38:03+02:00", "utc": "2003-02-04T12:38:03Z", "ms": 1044362282527.0597 }, "end": { "local": "2003-02-05T16:22:51+02:00", "utc": "2003-02-05T14:22:51Z", "ms": 1044454970533.884 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-04T14:38:03+02:00", "utc": "2003-02-04T12:38:03Z", "ms": 1044362282527.0597 }, "end": { "local": "2003-02-05T16:22:51+02:00", "utc": "2003-02-05T14:22:51Z", "ms": 1044454970533.884 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-02-04", "window": { "start": { "local": "2003-02-04T11:45:04+02:00", "utc": "2003-02-04T09:45:04Z", "ms": 1044351904003.247 }, "end": { "local": "2003-02-04T12:33:04+02:00", "utc": "2003-02-04T10:33:04Z", "ms": 1044354784003.247 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-02-05", "window": { "start": { "local": "2003-02-05T11:45:10+02:00", "utc": "2003-02-05T09:45:10Z", "ms": 1044438309637.239 }, "end": { "local": "2003-02-05T12:33:10+02:00", "utc": "2003-02-05T10:33:10Z", "ms": 1044441189637.239 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:38 on Tue 4 Feb to 16:23 on Wed 5 Feb.", "fact": "2003-02-04T12:38:03Z → 2003-02-05T14:22:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 4th, 11:45–12:33 on the 5th.", "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 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 7499 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Cairo, 2003: Wednesday 5 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": "2003-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-05", "confidence": "determinate" } ], "quote": "In Cairo, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2003 falls on Wednesday 5 February. Caturthī runs from 14:38 on Tue 4 Feb to 16:23 on Wed 5 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13781, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2003-02-05T16:22:51+02:00", "utc": "2003-02-05T14:22:51Z", "ms": 1044454970533.884 }, "end": { "local": "2003-02-06T18:37:14+02:00", "utc": "2003-02-06T16:37:14Z", "ms": 1044549434144.256 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-05T16:22:51+02:00", "utc": "2003-02-05T14:22:51Z", "ms": 1044454970533.884 }, "end": { "local": "2003-02-06T18:37:14+02:00", "utc": "2003-02-06T16:37:14Z", "ms": 1044549434144.256 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-02-05", "window": { "start": { "local": "2003-02-05T11:45:10+02:00", "utc": "2003-02-05T09:45:10Z", "ms": 1044438309637.239 }, "end": { "local": "2003-02-05T12:33:10+02:00", "utc": "2003-02-05T10:33:10Z", "ms": 1044441189637.239 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-02-06", "window": { "start": { "local": "2003-02-06T11:45:14+02:00", "utc": "2003-02-06T09:45:14Z", "ms": 1044524714444.8418 }, "end": { "local": "2003-02-06T12:33:14+02:00", "utc": "2003-02-06T10:33:14Z", "ms": 1044527594444.8418 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 16:23 on Wed 5 Feb to 18:37 on Thu 6 Feb.", "fact": "2003-02-05T14:22:51Z → 2003-02-06T16:37:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 5th, 11:45–12:33 on the 6th.", "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 5th and 48 of 48 on the 6th.", "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 13781 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Cairo, 2003: Thursday 6 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": "2003-02-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-06", "confidence": "determinate" } ], "quote": "In Cairo, Śrī Pañcamī 2003 falls on Thursday 6 February. Pañcamī runs from 16:23 on Wed 5 Feb to 18:37 on Thu 6 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13781, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2003-02-05T16:22:51+02:00", "utc": "2003-02-05T14:22:51Z", "ms": 1044454970533.884 }, "end": { "local": "2003-02-06T18:37:14+02:00", "utc": "2003-02-06T16:37:14Z", "ms": 1044549434144.256 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-05T16:22:51+02:00", "utc": "2003-02-05T14:22:51Z", "ms": 1044454970533.884 }, "end": { "local": "2003-02-06T18:37:14+02:00", "utc": "2003-02-06T16:37:14Z", "ms": 1044549434144.256 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-02-05", "window": { "start": { "local": "2003-02-05T11:45:10+02:00", "utc": "2003-02-05T09:45:10Z", "ms": 1044438309637.239 }, "end": { "local": "2003-02-05T12:33:10+02:00", "utc": "2003-02-05T10:33:10Z", "ms": 1044441189637.239 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-02-06", "window": { "start": { "local": "2003-02-06T11:45:14+02:00", "utc": "2003-02-06T09:45:14Z", "ms": 1044524714444.8418 }, "end": { "local": "2003-02-06T12:33:14+02:00", "utc": "2003-02-06T10:33:14Z", "ms": 1044527594444.8418 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 16:23 on Wed 5 Feb to 18:37 on Thu 6 Feb.", "fact": "2003-02-05T14:22:51Z → 2003-02-06T16:37:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 5th, 11:45–12:33 on the 6th.", "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 5th and 48 of 48 on the 6th.", "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 13781 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Cairo, 2003: Thursday 6 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": "2003-02-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-06", "confidence": "determinate" } ], "quote": "In Cairo, Vasanta Pañcamī 2003 falls on Thursday 6 February. Pañcamī runs from 16:23 on Wed 5 Feb to 18:37 on Thu 6 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18189, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2003-02-07T21:11:50+02:00", "utc": "2003-02-07T19:11:50Z", "ms": 1044645110168.7408 }, "end": { "local": "2003-02-08T23:53:04+02:00", "utc": "2003-02-08T21:53:04Z", "ms": 1044741183541.1969 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-07T21:11:50+02:00", "utc": "2003-02-07T19:11:50Z", "ms": 1044645110168.7408 }, "end": { "local": "2003-02-08T23:53:04+02:00", "utc": "2003-02-08T21:53:04Z", "ms": 1044741183541.1969 } }, "kaala": "arunodaya", "days": [ { "local_date": "2003-02-08", "window": { "start": { "local": "2003-02-08T04:56:45+02:00", "utc": "2003-02-08T02:56:45Z", "ms": 1044673004842.5474 }, "end": { "local": "2003-02-08T06:41:24+02:00", "utc": "2003-02-08T04:41:24Z", "ms": 1044679284195.8247 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "2003-02-09", "window": { "start": { "local": "2003-02-09T04:56:13+02:00", "utc": "2003-02-09T02:56:13Z", "ms": 1044759372584.8834 }, "end": { "local": "2003-02-09T06:40:39+02:00", "utc": "2003-02-09T04:40:39Z", "ms": 1044765639291.3625 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 21:12 on Fri 7 Feb to 23:53 on Sat 8 Feb.", "fact": "2003-02-07T19:11:50Z → 2003-02-08T21:53:04Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:57–06:41 on the 8th, 04:56–06:41 on the 9th.", "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 8th and 0 of 104 on the 9th.", "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 18189 s" }, { "step": "ruling", "text": "Ratha Saptamī, Cairo, 2003: Saturday 8 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-08", "confidence": "determinate" } ], "quote": "In Cairo, Ratha Saptamī 2003 falls on Saturday 8 February. Saptamī runs from 21:12 on Fri 7 Feb to 23:53 on Sat 8 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-02-13", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-13", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 241, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-02-12T05:59:42+02:00", "utc": "2003-02-12T03:59:42Z", "ms": 1045022381591.8392 }, "end": { "local": "2003-02-13T06:41:28+02:00", "utc": "2003-02-13T04:41:28Z", "ms": 1045111288379.5334 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-12T05:59:42+02:00", "utc": "2003-02-12T03:59:42Z", "ms": 1045022381591.8392 }, "end": { "local": "2003-02-13T06:41:28+02:00", "utc": "2003-02-13T04:41:28Z", "ms": 1045111288379.5334 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-02-12", "window": { "start": { "local": "2003-02-12T06:38:17+02:00", "utc": "2003-02-12T04:38:17Z", "ms": 1045024697115.8179 }, "end": { "local": "2003-02-12T06:38:17+02:00", "utc": "2003-02-12T04:38:17Z", "ms": 1045024697115.8179 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-02-13", "window": { "start": { "local": "2003-02-13T06:37:27+02:00", "utc": "2003-02-13T04:37:27Z", "ms": 1045111047330.2378 }, "end": { "local": "2003-02-13T06:37:27+02:00", "utc": "2003-02-13T04:37:27Z", "ms": 1045111047330.2378 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:00 on Wed 12 Feb to 06:41 on Thu 13 Feb.", "fact": "2003-02-12T03:59:42Z → 2003-02-13T04:41:28Z" }, { "step": "kaala", "text": "Sunrise is at 06:38 on the 12th and 06:37 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 12th and is on the 13th.", "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 241 s < 300 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Cairo, 2003: Thursday 13 February.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-02-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-13", "confidence": "boundary" } ], "quote": "In Cairo, Jayā Ekādaśī 2003 falls on Thursday 13 February. Ekādaśī runs from 06:00 on Wed 12 Feb to 06:41 on Thu 13 Feb and is current at sunrise that day. It is 4 min 01 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-02-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18237, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2003-02-13T06:41:28+02:00", "utc": "2003-02-13T04:41:28Z", "ms": 1045111288379.5334 }, "end": { "local": "2003-02-14T06:33:50+02:00", "utc": "2003-02-14T04:33:50Z", "ms": 1045197229793.4663 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-13T06:41:28+02:00", "utc": "2003-02-13T04:41:28Z", "ms": 1045111288379.5334 }, "end": { "local": "2003-02-14T06:33:50+02:00", "utc": "2003-02-14T04:33:50Z", "ms": 1045197229793.4663 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-02-13", "window": { "start": { "local": "2003-02-13T11:45:25+02:00", "utc": "2003-02-13T09:45:25Z", "ms": 1045129525384.1183 }, "end": { "local": "2003-02-13T12:33:25+02:00", "utc": "2003-02-13T10:33:25Z", "ms": 1045132405384.1183 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-02-14", "window": { "start": { "local": "2003-02-14T11:45:24+02:00", "utc": "2003-02-14T09:45:24Z", "ms": 1045215923802.8876 }, "end": { "local": "2003-02-14T12:33:24+02:00", "utc": "2003-02-14T10:33:24Z", "ms": 1045218803802.8876 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 06:41 on Thu 13 Feb to 06:34 on Fri 14 Feb.", "fact": "2003-02-13T04:41:28Z → 2003-02-14T04:33:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 13th, 11:45–12:33 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18237 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Cairo, 2003: Thursday 13 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": "2003-02-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-13", "confidence": "determinate" } ], "quote": "In Cairo, Bhīṣma Dvādaśī 2003 falls on Thursday 13 February. Dvādaśī runs from 06:41 on Thu 13 Feb to 06:34 on Fri 14 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-02-14", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36802, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-02-14T06:33:50+02:00", "utc": "2003-02-14T04:33:50Z", "ms": 1045197229793.4663 }, "end": { "local": "2003-02-15T05:38:42+02:00", "utc": "2003-02-15T03:38:42Z", "ms": 1045280322058.3125 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-14T06:33:50+02:00", "utc": "2003-02-14T04:33:50Z", "ms": 1045197229793.4663 }, "end": { "local": "2003-02-15T05:38:42+02:00", "utc": "2003-02-15T03:38:42Z", "ms": 1045280322058.3125 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-02-13", "window": { "start": { "local": "2003-02-13T17:41:23+02:00", "utc": "2003-02-13T15:41:23Z", "ms": 1045150883437.9988 }, "end": { "local": "2003-02-13T19:24:45+02:00", "utc": "2003-02-13T17:24:45Z", "ms": 1045157085165.8212 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "2003-02-14", "window": { "start": { "local": "2003-02-14T17:42:11+02:00", "utc": "2003-02-14T15:42:11Z", "ms": 1045237331209.1089 }, "end": { "local": "2003-02-14T19:25:20+02:00", "utc": "2003-02-14T17:25:20Z", "ms": 1045243519627.3055 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:34 on Fri 14 Feb to 05:39 on Sat 15 Feb.", "fact": "2003-02-14T04:33:50Z → 2003-02-15T03:38:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:41–19:25 on the 13th, 17:42–19:25 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 13th and 103 of 103 on the 14th.", "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 36802 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Friday 14 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": "2003-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-14", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Friday 14 February. Trayodaśī runs from 06:34 on Fri 14 Feb to 05:39 on Sat 15 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-02-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27812, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-02-16T04:01:46+02:00", "utc": "2003-02-16T02:01:46Z", "ms": 1045360905995.6688 }, "end": { "local": "2003-02-17T01:51:11+02:00", "utc": "2003-02-16T23:51:11Z", "ms": 1045439470704.4688 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2003-02-16T04:01:46+02:00", "utc": "2003-02-16T02:01:46Z", "ms": 1045360905995.6688 }, "end": { "local": "2003-02-17T01:51:11+02:00", "utc": "2003-02-16T23:51:11Z", "ms": 1045439470704.4688 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-02-16", "window": { "start": { "local": "2003-02-16T11:45:18+02:00", "utc": "2003-02-16T09:45:18Z", "ms": 1045388718403.7529 }, "end": { "local": "2003-02-16T12:33:18+02:00", "utc": "2003-02-16T10:33:18Z", "ms": 1045391598403.7529 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-02-17", "window": { "start": { "local": "2003-02-17T11:45:15+02:00", "utc": "2003-02-17T09:45:15Z", "ms": 1045475114617.6516 }, "end": { "local": "2003-02-17T12:33:15+02:00", "utc": "2003-02-17T10:33:15Z", "ms": 1045477994617.6516 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:02 on Sun 16 Feb to 01:51 on Mon 17 Feb.", "fact": "2003-02-16T02:01:46Z → 2003-02-16T23:51:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 16th, 11:45–12:33 on the 17th.", "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 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: paraviddha → only-day · margin 27812 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Cairo, 2003: Sunday 16 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": "2003-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-16", "confidence": "determinate" } ], "quote": "In Cairo, Māghī Pūrṇimā 2003 falls on Sunday 16 February. Pūrṇimā runs from 04:02 on Sun 16 Feb to 01:51 on Mon 17 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-02-19", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10987, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-02-19T17:33:23+02:00", "utc": "2003-02-19T15:33:23Z", "ms": 1045668802751.927 }, "end": { "local": "2003-02-20T14:43:13+02:00", "utc": "2003-02-20T12:43:13Z", "ms": 1045744993246.9796 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-02-19T17:33:23+02:00", "utc": "2003-02-19T15:33:23Z", "ms": 1045668802751.927 }, "end": { "local": "2003-02-20T14:43:13+02:00", "utc": "2003-02-20T12:43:13Z", "ms": 1045744993246.9796 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-02-19", "window": { "start": { "local": "2003-02-19T20:36:30+02:00", "utc": "2003-02-19T18:36:30Z", "ms": 1045679789520.3114 }, "end": { "local": "2003-02-19T20:36:30+02:00", "utc": "2003-02-19T18:36:30Z", "ms": 1045679789520.3114 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-02-20", "window": { "start": { "local": "2003-02-20T21:42:52+02:00", "utc": "2003-02-20T19:42:52Z", "ms": 1045770172063.703 }, "end": { "local": "2003-02-20T21:42:52+02:00", "utc": "2003-02-20T19:42:52Z", "ms": 1045770172063.703 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:33 on Wed 19 Feb to 14:43 on Thu 20 Feb.", "fact": "2003-02-19T15:33:23Z → 2003-02-20T12:43:13Z" }, { "step": "kaala", "text": "Moonrise is at 20:36 on the 19th and 21:43 on the 20th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 19th and is not on the 20th.", "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 10987 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Wednesday 19 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-02-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-19", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Wednesday 19 February. Caturthī runs from 17:33 on Wed 19 Feb to 14:43 on Thu 20 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-02-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-02-26", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9617, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-02-26T03:44:50+02:00", "utc": "2003-02-26T01:44:50Z", "ms": 1046223889827.821 }, "end": { "local": "2003-02-27T03:10:29+02:00", "utc": "2003-02-27T01:10:29Z", "ms": 1046308228630.0175 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-02-26T03:44:50+02:00", "utc": "2003-02-26T01:44:50Z", "ms": 1046223889827.821 }, "end": { "local": "2003-02-27T03:10:29+02:00", "utc": "2003-02-27T01:10:29Z", "ms": 1046308228630.0175 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-02-26", "window": { "start": { "local": "2003-02-26T06:25:07+02:00", "utc": "2003-02-26T04:25:07Z", "ms": 1046233506979.4403 }, "end": { "local": "2003-02-26T06:25:07+02:00", "utc": "2003-02-26T04:25:07Z", "ms": 1046233506979.4403 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-02-27", "window": { "start": { "local": "2003-02-27T06:24:04+02:00", "utc": "2003-02-27T04:24:04Z", "ms": 1046319843934.0831 }, "end": { "local": "2003-02-27T06:24:04+02:00", "utc": "2003-02-27T04:24:04Z", "ms": 1046319843934.0831 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:45 on Wed 26 Feb to 03:10 on Thu 27 Feb.", "fact": "2003-02-26T01:44:50Z → 2003-02-27T01:10:29Z" }, { "step": "kaala", "text": "Sunrise is at 06:25 on the 26th and 06:24 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9617 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Cairo, 2003: Wednesday 26 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": "2003-02-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-26", "confidence": "determinate" } ], "quote": "In Cairo, Vijayā Ekādaśī 2003 falls on Wednesday 26 February. Ekādaśī runs from 03:45 on Wed 26 Feb to 03:10 on Thu 27 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-02-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-02-28", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-02-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26715, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-02-28T02:57:21+02:00", "utc": "2003-02-28T00:57:21Z", "ms": 1046393841379.8959 }, "end": { "local": "2003-03-01T03:06:03+02:00", "utc": "2003-03-01T01:06:03Z", "ms": 1046480763176.3472 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-02-28T02:57:21+02:00", "utc": "2003-02-28T00:57:21Z", "ms": 1046393841379.8959 }, "end": { "local": "2003-03-01T03:06:03+02:00", "utc": "2003-03-01T01:06:03Z", "ms": 1046480763176.3472 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-02-27", "window": { "start": { "local": "2003-02-27T17:51:58+02:00", "utc": "2003-02-27T15:51:58Z", "ms": 1046361118260.265 }, "end": { "local": "2003-02-27T19:32:07+02:00", "utc": "2003-02-27T17:32:07Z", "ms": 1046367126513.6956 } }, "covered_min": 0, "window_min": 100, "qualifies": false }, { "local_date": "2003-02-28", "window": { "start": { "local": "2003-02-28T17:52:41+02:00", "utc": "2003-02-28T15:52:41Z", "ms": 1046447560917.3844 }, "end": { "local": "2003-02-28T19:32:35+02:00", "utc": "2003-02-28T17:32:35Z", "ms": 1046453554886.6235 } }, "covered_min": 100, "window_min": 100, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:57 on Fri 28 Feb to 03:06 on Sat 1 Mar.", "fact": "2003-02-28T00:57:21Z → 2003-03-01T01:06:03Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:52–19:32 on the 27th, 17:53–19:33 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 100 minutes on the 27th and 100 of 100 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26715 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Friday 28 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": "2003-02-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-02-28", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Friday 28 February. Trayodaśī runs from 02:57 on Fri 28 Feb to 03:06 on Sat 1 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-02-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9285, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-03-01T03:06:03+02:00", "utc": "2003-03-01T01:06:03Z", "ms": 1046480763176.3472 }, "end": { "local": "2003-03-02T03:37:59+02:00", "utc": "2003-03-02T01:37:59Z", "ms": 1046569078518.3945 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-03-01T03:06:03+02:00", "utc": "2003-03-01T01:06:03Z", "ms": 1046480763176.3472 }, "end": { "local": "2003-03-02T03:37:59+02:00", "utc": "2003-03-02T01:37:59Z", "ms": 1046569078518.3945 } }, "kaala": "nishita", "days": [ { "local_date": "2003-02-28", "window": { "start": { "local": "2003-02-28T23:43:18+02:00", "utc": "2003-02-28T21:43:18Z", "ms": 1046468598302.0312 }, "end": { "local": "2003-03-01T00:31:18+02:00", "utc": "2003-02-28T22:31:18Z", "ms": 1046471478302.0312 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-03-01", "window": { "start": { "local": "2003-03-01T23:43:07+02:00", "utc": "2003-03-01T21:43:07Z", "ms": 1046554986883.0178 }, "end": { "local": "2003-03-02T00:31:07+02:00", "utc": "2003-03-01T22:31:07Z", "ms": 1046557866883.0178 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:06 on Sat 1 Mar to 03:38 on Sun 2 Mar.", "fact": "2003-03-01T01:06:03Z → 2003-03-02T01:37:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:43–00:31 on the 28th, 23:43–00:31 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 0 of 48 minutes on the 28th and 48 of 48 on the 1st.", "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 9285 s" }, { "step": "ruling", "text": "Mahāśivarātri, Cairo, 2003: Saturday 1 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": "2003-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-01", "confidence": "determinate" } ], "quote": "In Cairo, Mahāśivarātri 2003 falls on Saturday 1 March. Caturdaśī runs from 03:06 on Sat 1 Mar to 03:38 on Sun 2 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-03-06", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-06", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 432, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-03-06T10:03:59+02:00", "utc": "2003-03-06T08:03:59Z", "ms": 1046937838756.6757 }, "end": { "local": "2003-03-07T12:37:35+02:00", "utc": "2003-03-07T10:37:35Z", "ms": 1047033454966.8704 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-03-06T10:03:59+02:00", "utc": "2003-03-06T08:03:59Z", "ms": 1046937838756.6757 }, "end": { "local": "2003-03-07T12:37:35+02:00", "utc": "2003-03-07T10:37:35Z", "ms": 1047033454966.8704 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-03-06", "window": { "start": { "local": "2003-03-06T11:42:37+02:00", "utc": "2003-03-06T09:42:37Z", "ms": 1046943756713.2131 }, "end": { "local": "2003-03-06T12:30:37+02:00", "utc": "2003-03-06T10:30:37Z", "ms": 1046946636713.2131 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-03-07", "window": { "start": { "local": "2003-03-07T11:42:23+02:00", "utc": "2003-03-07T09:42:23Z", "ms": 1047030142807.2166 }, "end": { "local": "2003-03-07T12:30:23+02:00", "utc": "2003-03-07T10:30:23Z", "ms": 1047033022807.2166 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:04 on Thu 6 Mar to 12:38 on Fri 7 Mar.", "fact": "2003-03-06T08:03:59Z → 2003-03-07T10:37:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 6th, 11:42–12:30 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 432 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Thursday 6 March.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-03-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-06", "confidence": "boundary" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Thursday 6 March. Caturthī runs from 10:04 on Thu 6 Mar to 12:38 on Fri 7 Mar and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-03-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-03-14", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24822, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-03-13T23:13:24+02:00", "utc": "2003-03-13T21:13:24Z", "ms": 1047590004212.8645 }, "end": { "local": "2003-03-14T22:29:53+02:00", "utc": "2003-03-14T20:29:53Z", "ms": 1047673793379.8824 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-03-13T23:13:24+02:00", "utc": "2003-03-13T21:13:24Z", "ms": 1047590004212.8645 }, "end": { "local": "2003-03-14T22:29:53+02:00", "utc": "2003-03-14T20:29:53Z", "ms": 1047673793379.8824 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-03-14", "window": { "start": { "local": "2003-03-14T06:07:06+02:00", "utc": "2003-03-14T04:07:06Z", "ms": 1047614825915.7599 }, "end": { "local": "2003-03-14T06:07:06+02:00", "utc": "2003-03-14T04:07:06Z", "ms": 1047614825915.7599 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-03-15", "window": { "start": { "local": "2003-03-15T06:05:54+02:00", "utc": "2003-03-15T04:05:54Z", "ms": 1047701154481.6946 }, "end": { "local": "2003-03-15T06:05:54+02:00", "utc": "2003-03-15T04:05:54Z", "ms": 1047701154481.6946 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:13 on Thu 13 Mar to 22:30 on Fri 14 Mar.", "fact": "2003-03-13T21:13:24Z → 2003-03-14T20:29:53Z" }, { "step": "kaala", "text": "Sunrise is at 06:07 on the 14th and 06:06 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 14th and is not 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 24822 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Cairo, 2003: Friday 14 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": "2003-03-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-14", "confidence": "determinate" } ], "quote": "In Cairo, Āmalakī Ekādaśī 2003 falls on Friday 14 March. Ekādaśī runs from 23:13 on Thu 13 Mar to 22:30 on Fri 14 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-03-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-03-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2197, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-03-15T20:56:31+02:00", "utc": "2003-03-15T18:56:31Z", "ms": 1047754591278.444 }, "end": { "local": "2003-03-16T18:39:57+02:00", "utc": "2003-03-16T16:39:57Z", "ms": 1047832797108.1289 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-03-15T20:56:31+02:00", "utc": "2003-03-15T18:56:31Z", "ms": 1047754591278.444 }, "end": { "local": "2003-03-16T18:39:57+02:00", "utc": "2003-03-16T16:39:57Z", "ms": 1047832797108.1289 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-03-15", "window": { "start": { "local": "2003-03-15T18:02:42+02:00", "utc": "2003-03-15T16:02:42Z", "ms": 1047744162069.8192 }, "end": { "local": "2003-03-15T19:38:58+02:00", "utc": "2003-03-15T17:38:58Z", "ms": 1047749938162.8611 } }, "covered_min": 0, "window_min": 96, "qualifies": false }, { "local_date": "2003-03-16", "window": { "start": { "local": "2003-03-16T18:03:20+02:00", "utc": "2003-03-16T16:03:20Z", "ms": 1047830599934.198 }, "end": { "local": "2003-03-16T19:39:21+02:00", "utc": "2003-03-16T17:39:21Z", "ms": 1047836361383.5961 } }, "covered_min": 37, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:57 on Sat 15 Mar to 18:40 on Sun 16 Mar.", "fact": "2003-03-15T18:56:31Z → 2003-03-16T16:39:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:03–19:39 on the 15th, 18:03–19:39 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 96 minutes on the 15th and 37 of 96 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2197 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Sunday 16 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": "2003-03-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-16", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Sunday 16 March. Trayodaśī runs from 20:57 on Sat 15 Mar to 18:40 on Sun 16 Mar and covers 37 of 96 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-03-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 559, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-03-17T15:49:12+02:00", "utc": "2003-03-17T13:49:12Z", "ms": 1047908951717.9108 }, "end": { "local": "2003-03-18T12:34:34+02:00", "utc": "2003-03-18T10:34:34Z", "ms": 1047983673889.9171 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-03-17T15:49:12+02:00", "utc": "2003-03-17T13:49:12Z", "ms": 1047908951717.9108 }, "end": { "local": "2003-03-18T12:34:34+02:00", "utc": "2003-03-18T10:34:34Z", "ms": 1047983673889.9171 } }, "kaala": "sayahna", "days": [ { "local_date": "2003-03-17", "window": { "start": { "local": "2003-03-17T15:39:52+02:00", "utc": "2003-03-17T13:39:52Z", "ms": 1047908392234.6941 }, "end": { "local": "2003-03-17T18:03:58+02:00", "utc": "2003-03-17T16:03:58Z", "ms": 1047917037592.1967 } }, "covered_min": 135, "window_min": 144, "qualifies": true }, { "local_date": "2003-03-18", "window": { "start": { "local": "2003-03-18T15:40:08+02:00", "utc": "2003-03-18T13:40:08Z", "ms": 1047994807774.3717 }, "end": { "local": "2003-03-18T18:04:35+02:00", "utc": "2003-03-18T16:04:35Z", "ms": 1048003475061.9058 } }, "covered_min": 0, "window_min": 144, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:49 on Mon 17 Mar to 12:35 on Tue 18 Mar.", "fact": "2003-03-17T13:49:12Z → 2003-03-18T10:34:34Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:40–18:04 on the 17th, 15:40–18:05 on the 18th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 135 of 144 minutes on the 17th and 0 of 144 on the 18th.", "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 559 s" }, { "step": "ruling", "text": "Holikā Dahana, Cairo, 2003: Monday 17 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": "2003-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-17", "confidence": "determinate" } ], "quote": "In Cairo, Holikā Dahana 2003 falls on Monday 17 March. Pūrṇimā runs from 15:49 on Mon 17 Mar to 12:35 on Tue 18 Mar and covers 135 of 144 minutes of sāyāhna that late afternoon.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 559, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-03-17T15:49:12+02:00", "utc": "2003-03-17T13:49:12Z", "ms": 1047908951717.9108 }, "end": { "local": "2003-03-18T12:34:34+02:00", "utc": "2003-03-18T10:34:34Z", "ms": 1047983673889.9171 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2003-03-17T15:49:12+02:00", "utc": "2003-03-17T13:49:12Z", "ms": 1047908951717.9108 }, "end": { "local": "2003-03-18T12:34:34+02:00", "utc": "2003-03-18T10:34:34Z", "ms": 1047983673889.9171 } }, "kaala": "sayahna", "days": [ { "local_date": "2003-03-17", "window": { "start": { "local": "2003-03-17T15:39:52+02:00", "utc": "2003-03-17T13:39:52Z", "ms": 1047908392234.6941 }, "end": { "local": "2003-03-17T18:03:58+02:00", "utc": "2003-03-17T16:03:58Z", "ms": 1047917037592.1967 } }, "covered_min": 135, "window_min": 144, "qualifies": true }, { "local_date": "2003-03-18", "window": { "start": { "local": "2003-03-18T15:40:08+02:00", "utc": "2003-03-18T13:40:08Z", "ms": 1047994807774.3717 }, "end": { "local": "2003-03-18T18:04:35+02:00", "utc": "2003-03-18T16:04:35Z", "ms": 1048003475061.9058 } }, "covered_min": 0, "window_min": 144, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2003-03-17", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:49 on Mon 17 Mar to 12:35 on Tue 18 Mar.", "fact": "2003-03-17T13:49:12Z → 2003-03-18T10:34:34Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:40–18:04 on the 17th, 15:40–18:05 on the 18th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 135 of 144 minutes on the 17th and 0 of 144 on the 18th.", "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 559 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Monday 17 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Cairo, 2003: Tuesday 18 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": "2003-03-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-18", "confidence": "determinate" } ], "quote": "In Cairo, Holī 2003 falls on Tuesday 18 March. It is kept the day after Holikā Dahana, which falls on Monday 17 March. Pūrṇimā runs from 15:49 on Mon 17 Mar to 12:35 on Tue 18 Mar and covers 135 of 144 minutes of sāyāhna on the 17th.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11144, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2003-03-18T12:34:34+02:00", "utc": "2003-03-18T10:34:34Z", "ms": 1047983673889.9171 }, "end": { "local": "2003-03-19T09:06:50+02:00", "utc": "2003-03-19T07:06:50Z", "ms": 1048057610022.8093 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-03-18T12:34:34+02:00", "utc": "2003-03-18T10:34:34Z", "ms": 1047983673889.9171 }, "end": { "local": "2003-03-19T09:06:50+02:00", "utc": "2003-03-19T07:06:50Z", "ms": 1048057610022.8093 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-03-18", "window": { "start": { "local": "2003-03-18T06:02:19+02:00", "utc": "2003-03-18T04:02:19Z", "ms": 1047960138624.2356 }, "end": { "local": "2003-03-18T06:02:19+02:00", "utc": "2003-03-18T04:02:19Z", "ms": 1047960138624.2356 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-03-19", "window": { "start": { "local": "2003-03-19T06:01:06+02:00", "utc": "2003-03-19T04:01:06Z", "ms": 1048046466257.7808 }, "end": { "local": "2003-03-19T06:01:06+02:00", "utc": "2003-03-19T04:01:06Z", "ms": 1048046466257.7808 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:35 on Tue 18 Mar to 09:07 on Wed 19 Mar.", "fact": "2003-03-18T10:34:34Z → 2003-03-19T07:06:50Z" }, { "step": "kaala", "text": "Sunrise is at 06:02 on the 18th and 06:01 on the 19th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is not on the 18th and is on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11144 s" }, { "step": "ruling", "text": "Vasantotsava, Cairo, 2003: Wednesday 19 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": "2003-03-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-19", "confidence": "determinate" } ], "quote": "In Cairo, Vasantotsava 2003 falls on Wednesday 19 March. Pratipadā runs from 12:35 on Tue 18 Mar to 09:07 on Wed 19 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-03-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5018, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-03-21T02:13:47+02:00", "utc": "2003-03-21T00:13:47Z", "ms": 1048205626769.4939 }, "end": { "local": "2003-03-21T23:07:12+02:00", "utc": "2003-03-21T21:07:12Z", "ms": 1048280831699.7933 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-03-21T02:13:47+02:00", "utc": "2003-03-21T00:13:47Z", "ms": 1048205626769.4939 }, "end": { "local": "2003-03-21T23:07:12+02:00", "utc": "2003-03-21T21:07:12Z", "ms": 1048280831699.7933 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-03-20", "window": { "start": { "local": "2003-03-20T20:33:46+02:00", "utc": "2003-03-20T18:33:46Z", "ms": 1048185225754.9196 }, "end": { "local": "2003-03-20T20:33:46+02:00", "utc": "2003-03-20T18:33:46Z", "ms": 1048185225754.9196 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-03-21", "window": { "start": { "local": "2003-03-21T21:43:34+02:00", "utc": "2003-03-21T19:43:34Z", "ms": 1048275813841.9208 }, "end": { "local": "2003-03-21T21:43:34+02:00", "utc": "2003-03-21T19:43:34Z", "ms": 1048275813841.9208 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:14 on Fri 21 Mar to 23:07 on Fri 21 Mar.", "fact": "2003-03-21T00:13:47Z → 2003-03-21T21:07:12Z" }, { "step": "kaala", "text": "Moonrise is at 20:34 on the 20th and 21:44 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 20th and is on the 21st.", "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 5018 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Friday 21 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": "2003-03-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-21", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Friday 21 March. Caturthī runs from 02:14 on Fri 21 Mar to 23:07 on Fri 21 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-03-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10589, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-03-24T16:29:00+02:00", "utc": "2003-03-24T14:29:00Z", "ms": 1048516140179.595 }, "end": { "local": "2003-03-25T15:21:51+02:00", "utc": "2003-03-25T13:21:51Z", "ms": 1048598510723.2037 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-03-24T16:29:00+02:00", "utc": "2003-03-24T14:29:00Z", "ms": 1048516140179.595 }, "end": { "local": "2003-03-25T15:21:51+02:00", "utc": "2003-03-25T13:21:51Z", "ms": 1048598510723.2037 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-03-24", "window": { "start": { "local": "2003-03-24T11:37:40+02:00", "utc": "2003-03-24T09:37:40Z", "ms": 1048498659846.116 }, "end": { "local": "2003-03-24T12:25:40+02:00", "utc": "2003-03-24T10:25:40Z", "ms": 1048501539846.116 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-03-25", "window": { "start": { "local": "2003-03-25T11:37:22+02:00", "utc": "2003-03-25T09:37:22Z", "ms": 1048585041753.2778 }, "end": { "local": "2003-03-25T12:25:22+02:00", "utc": "2003-03-25T10:25:22Z", "ms": 1048587921753.2778 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:29 on Mon 24 Mar to 15:22 on Tue 25 Mar.", "fact": "2003-03-24T14:29:00Z → 2003-03-25T13:21:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 24th, 11:37–12:25 on the 25th.", "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 24th and 48 of 48 on the 25th.", "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 10589 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Cairo, 2003: Tuesday 25 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitalashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Sitalastami, (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-03-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-25", "confidence": "determinate" } ], "quote": "In Cairo, Śītalāṣṭamī 2003 falls on Tuesday 25 March. Aṣṭamī runs from 16:29 on Mon 24 Mar to 15:22 on Tue 25 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-03-28", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32151, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-03-27T14:47:15+02:00", "utc": "2003-03-27T12:47:15Z", "ms": 1048769235174.045 }, "end": { "local": "2003-03-28T15:15:45+02:00", "utc": "2003-03-28T13:15:45Z", "ms": 1048857344866.9331 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-03-27T14:47:15+02:00", "utc": "2003-03-27T12:47:15Z", "ms": 1048769235174.045 }, "end": { "local": "2003-03-28T15:15:45+02:00", "utc": "2003-03-28T13:15:45Z", "ms": 1048857344866.9331 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-03-27", "window": { "start": { "local": "2003-03-27T05:51:24+02:00", "utc": "2003-03-27T03:51:24Z", "ms": 1048737084302.9357 }, "end": { "local": "2003-03-27T05:51:24+02:00", "utc": "2003-03-27T03:51:24Z", "ms": 1048737084302.9357 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-03-28", "window": { "start": { "local": "2003-03-28T05:50:12+02:00", "utc": "2003-03-28T03:50:12Z", "ms": 1048823411615.1549 }, "end": { "local": "2003-03-28T05:50:12+02:00", "utc": "2003-03-28T03:50:12Z", "ms": 1048823411615.1549 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:47 on Thu 27 Mar to 15:16 on Fri 28 Mar.", "fact": "2003-03-27T12:47:15Z → 2003-03-28T13:15:45Z" }, { "step": "kaala", "text": "Sunrise is at 05:51 on the 27th and 05:50 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32151 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Cairo, 2003: Friday 28 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": "2003-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-28", "confidence": "determinate" } ], "quote": "In Cairo, Pāpamocanī Ekādaśī 2003 falls on Friday 28 March. Ekādaśī runs from 14:47 on Thu 27 Mar to 15:16 on Fri 28 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-03-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-03-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2404, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-03-29T16:11:24+02:00", "utc": "2003-03-29T14:11:24Z", "ms": 1048947084360.5297 }, "end": { "local": "2003-03-30T17:31:53+02:00", "utc": "2003-03-30T15:31:53Z", "ms": 1049038312557.5027 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-03-29T16:11:24+02:00", "utc": "2003-03-29T14:11:24Z", "ms": 1048947084360.5297 }, "end": { "local": "2003-03-30T17:31:53+02:00", "utc": "2003-03-30T15:31:53Z", "ms": 1049038312557.5027 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-03-29", "window": { "start": { "local": "2003-03-29T18:11:20+02:00", "utc": "2003-03-29T16:11:20Z", "ms": 1048954279727.7235 }, "end": { "local": "2003-03-29T19:44:11+02:00", "utc": "2003-03-29T17:44:11Z", "ms": 1048959851307.3608 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "2003-03-30", "window": { "start": { "local": "2003-03-30T18:11:56+02:00", "utc": "2003-03-30T16:11:56Z", "ms": 1049040716172.7499 }, "end": { "local": "2003-03-30T19:44:33+02:00", "utc": "2003-03-30T17:44:33Z", "ms": 1049046273252.9248 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:11 on Sat 29 Mar to 17:32 on Sun 30 Mar.", "fact": "2003-03-29T14:11:24Z → 2003-03-30T15:31:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:11–19:44 on the 29th, 18:12–19:45 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 93 of 93 minutes on the 29th and 0 of 93 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2404 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Saturday 29 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": "2003-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-29", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Saturday 29 March. Trayodaśī runs from 16:11 on Sat 29 Mar to 17:32 on Sun 30 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-03-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-03-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15594, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-03-30T17:31:53+02:00", "utc": "2003-03-30T15:31:53Z", "ms": 1049038312557.5027 }, "end": { "local": "2003-03-31T19:15:03+02:00", "utc": "2003-03-31T17:15:03Z", "ms": 1049130902881.5961 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-03-30T17:31:53+02:00", "utc": "2003-03-30T15:31:53Z", "ms": 1049038312557.5027 }, "end": { "local": "2003-03-31T19:15:03+02:00", "utc": "2003-03-31T17:15:03Z", "ms": 1049130902881.5961 } }, "kaala": "nishita", "days": [ { "local_date": "2003-03-30", "window": { "start": { "local": "2003-03-30T23:35:15+02:00", "utc": "2003-03-30T21:35:15Z", "ms": 1049060115223.4056 }, "end": { "local": "2003-03-31T00:23:15+02:00", "utc": "2003-03-30T22:23:15Z", "ms": 1049062995223.4056 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-03-31", "window": { "start": { "local": "2003-03-31T23:34:57+02:00", "utc": "2003-03-31T21:34:57Z", "ms": 1049146497377.4465 }, "end": { "local": "2003-04-01T00:22:57+02:00", "utc": "2003-03-31T22:22:57Z", "ms": 1049149377377.4465 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:32 on Sun 30 Mar to 19:15 on Mon 31 Mar.", "fact": "2003-03-30T15:31:53Z → 2003-03-31T17:15:03Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 30th, 23:35–00:23 on the 31st.", "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 30th and 0 of 48 on the 31st.", "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 15594 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Sunday 30 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-03-30", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Sunday 30 March. Caturdaśī runs from 17:32 on Sun 30 Mar to 19:15 on Mon 31 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-03-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32127, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2003-04-01T21:18:43+02:00", "utc": "2003-04-01T19:18:43Z", "ms": 1049224722775.0717 }, "end": { "local": "2003-04-02T23:39:55+02:00", "utc": "2003-04-02T21:39:55Z", "ms": 1049319595021.501 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-01T21:18:43+02:00", "utc": "2003-04-01T19:18:43Z", "ms": 1049224722775.0717 }, "end": { "local": "2003-04-02T23:39:55+02:00", "utc": "2003-04-02T21:39:55Z", "ms": 1049319595021.501 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-01", "window": { "start": { "local": "2003-04-01T11:35:16+02:00", "utc": "2003-04-01T09:35:16Z", "ms": 1049189715587.6553 }, "end": { "local": "2003-04-01T12:23:16+02:00", "utc": "2003-04-01T10:23:16Z", "ms": 1049192595587.6553 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-04-02", "window": { "start": { "local": "2003-04-02T11:34:58+02:00", "utc": "2003-04-02T09:34:58Z", "ms": 1049276097839.3885 }, "end": { "local": "2003-04-02T12:22:58+02:00", "utc": "2003-04-02T10:22:58Z", "ms": 1049278977839.3885 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 21:19 on Tue 1 Apr to 23:40 on Wed 2 Apr.", "fact": "2003-04-01T19:18:43Z → 2003-04-02T21:39:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 1st, 11:35–12:23 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32127 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Cairo, 2003: Wednesday 2 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-02", "confidence": "determinate" } ], "quote": "In Cairo, Navarātrārambha (Caitra) (Chaitra Navratri) 2003 falls on Wednesday 2 April. Pratipadā runs from 21:19 on Tue 1 Apr to 23:40 on Wed 2 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23955, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2003-04-04T02:14:11+02:00", "utc": "2003-04-04T00:14:11Z", "ms": 1049415250882.3652 }, "end": { "local": "2003-04-05T04:54:50+02:00", "utc": "2003-04-05T02:54:50Z", "ms": 1049511290099.0135 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-04T02:14:11+02:00", "utc": "2003-04-04T00:14:11Z", "ms": 1049415250882.3652 }, "end": { "local": "2003-04-05T04:54:50+02:00", "utc": "2003-04-05T02:54:50Z", "ms": 1049511290099.0135 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-04", "window": { "start": { "local": "2003-04-04T11:34:23+02:00", "utc": "2003-04-04T09:34:23Z", "ms": 1049448862713.2317 }, "end": { "local": "2003-04-04T12:22:23+02:00", "utc": "2003-04-04T10:22:23Z", "ms": 1049451742713.2317 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-04-05", "window": { "start": { "local": "2003-04-05T11:34:05+02:00", "utc": "2003-04-05T09:34:05Z", "ms": 1049535245367.3738 }, "end": { "local": "2003-04-05T12:22:05+02:00", "utc": "2003-04-05T10:22:05Z", "ms": 1049538125367.3738 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:14 on Fri 4 Apr to 04:55 on Sat 5 Apr.", "fact": "2003-04-04T00:14:11Z → 2003-04-05T02:54:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 4th, 11:34–12:22 on the 5th.", "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 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23955 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Cairo, 2003: Friday 4 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": "2003-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-04", "confidence": "determinate" } ], "quote": "In Cairo, Gaurī Tṛtīyā (Gangaur) 2003 falls on Friday 4 April. Tṛtīyā runs from 02:14 on Fri 4 Apr to 04:55 on Sat 5 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23955, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2003-04-04T02:14:11+02:00", "utc": "2003-04-04T00:14:11Z", "ms": 1049415250882.3652 }, "end": { "local": "2003-04-05T04:54:50+02:00", "utc": "2003-04-05T02:54:50Z", "ms": 1049511290099.0135 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-04T02:14:11+02:00", "utc": "2003-04-04T00:14:11Z", "ms": 1049415250882.3652 }, "end": { "local": "2003-04-05T04:54:50+02:00", "utc": "2003-04-05T02:54:50Z", "ms": 1049511290099.0135 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-04", "window": { "start": { "local": "2003-04-04T11:34:23+02:00", "utc": "2003-04-04T09:34:23Z", "ms": 1049448862713.2317 }, "end": { "local": "2003-04-04T12:22:23+02:00", "utc": "2003-04-04T10:22:23Z", "ms": 1049451742713.2317 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-04-05", "window": { "start": { "local": "2003-04-05T11:34:05+02:00", "utc": "2003-04-05T09:34:05Z", "ms": 1049535245367.3738 }, "end": { "local": "2003-04-05T12:22:05+02:00", "utc": "2003-04-05T10:22:05Z", "ms": 1049538125367.3738 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:14 on Fri 4 Apr to 04:55 on Sat 5 Apr.", "fact": "2003-04-04T00:14:11Z → 2003-04-05T02:54:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 4th, 11:34–12:22 on the 5th.", "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 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23955 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Cairo, 2003: Friday 4 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": "2003-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-04", "confidence": "determinate" } ], "quote": "In Cairo, Saubhāgya Śayana Vrata 2003 falls on Friday 4 April. Tṛtīyā runs from 02:14 on Fri 4 Apr to 04:55 on Sat 5 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-04-05", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14462, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-04-05T04:54:50+02:00", "utc": "2003-04-05T02:54:50Z", "ms": 1049511290099.0135 }, "end": { "local": "2003-04-06T07:32:46+02:00", "utc": "2003-04-06T05:32:46Z", "ms": 1049607165789.5104 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-05T04:54:50+02:00", "utc": "2003-04-05T02:54:50Z", "ms": 1049511290099.0135 }, "end": { "local": "2003-04-06T07:32:46+02:00", "utc": "2003-04-06T05:32:46Z", "ms": 1049607165789.5104 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-05", "window": { "start": { "local": "2003-04-05T11:34:05+02:00", "utc": "2003-04-05T09:34:05Z", "ms": 1049535245367.3738 }, "end": { "local": "2003-04-05T12:22:05+02:00", "utc": "2003-04-05T10:22:05Z", "ms": 1049538125367.3738 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-04-06", "window": { "start": { "local": "2003-04-06T11:33:48+02:00", "utc": "2003-04-06T09:33:48Z", "ms": 1049621628187.6407 }, "end": { "local": "2003-04-06T12:21:48+02:00", "utc": "2003-04-06T10:21:48Z", "ms": 1049624508187.6407 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:55 on Sat 5 Apr to 07:33 on Sun 6 Apr.", "fact": "2003-04-05T02:54:50Z → 2003-04-06T05:32:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 5th, 11:34–12:22 on the 6th.", "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 5th and 0 of 48 on the 6th.", "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 14462 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Saturday 5 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": "2003-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-05", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Saturday 5 April. Caturthī runs from 04:55 on Sat 5 Apr to 07:33 on Sun 6 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-04-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5801, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2003-04-06T07:32:46+02:00", "utc": "2003-04-06T05:32:46Z", "ms": 1049607165789.5104 }, "end": { "local": "2003-04-07T09:56:50+02:00", "utc": "2003-04-07T07:56:50Z", "ms": 1049702209819.3718 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-06T07:32:46+02:00", "utc": "2003-04-06T05:32:46Z", "ms": 1049607165789.5104 }, "end": { "local": "2003-04-07T09:56:50+02:00", "utc": "2003-04-07T07:56:50Z", "ms": 1049702209819.3718 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-06", "window": { "start": { "local": "2003-04-06T11:33:48+02:00", "utc": "2003-04-06T09:33:48Z", "ms": 1049621628187.6407 }, "end": { "local": "2003-04-06T12:21:48+02:00", "utc": "2003-04-06T10:21:48Z", "ms": 1049624508187.6407 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-04-07", "window": { "start": { "local": "2003-04-07T11:33:31+02:00", "utc": "2003-04-07T09:33:31Z", "ms": 1049708011190.025 }, "end": { "local": "2003-04-07T12:21:31+02:00", "utc": "2003-04-07T10:21:31Z", "ms": 1049710891190.025 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 07:33 on Sun 6 Apr to 09:57 on Mon 7 Apr.", "fact": "2003-04-06T05:32:46Z → 2003-04-07T07:56:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 6th, 11:34–12:22 on the 7th.", "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 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5801 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Cairo, 2003: Sunday 6 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": "2003-04-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-06", "confidence": "determinate" } ], "quote": "In Cairo, Lakṣmī Pañcamī 2003 falls on Sunday 6 April. Pañcamī runs from 07:33 on Sun 6 Apr to 09:57 on Mon 7 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3319, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-04-09T13:16:16+02:00", "utc": "2003-04-09T11:16:16Z", "ms": 1049886976446.6987 }, "end": { "local": "2003-04-10T13:51:54+02:00", "utc": "2003-04-10T11:51:54Z", "ms": 1049975513912.5726 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-09T13:16:16+02:00", "utc": "2003-04-09T11:16:16Z", "ms": 1049886976446.6987 }, "end": { "local": "2003-04-10T13:51:54+02:00", "utc": "2003-04-10T11:51:54Z", "ms": 1049975513912.5726 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-09", "window": { "start": { "local": "2003-04-09T11:32:58+02:00", "utc": "2003-04-09T09:32:58Z", "ms": 1049880777805.398 }, "end": { "local": "2003-04-09T12:20:58+02:00", "utc": "2003-04-09T10:20:58Z", "ms": 1049883657805.398 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-04-10", "window": { "start": { "local": "2003-04-10T11:32:41+02:00", "utc": "2003-04-10T09:32:41Z", "ms": 1049967161450.8153 }, "end": { "local": "2003-04-10T12:20:41+02:00", "utc": "2003-04-10T10:20:41Z", "ms": 1049970041450.8153 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 13:16 on Wed 9 Apr to 13:52 on Thu 10 Apr.", "fact": "2003-04-09T11:16:16Z → 2003-04-10T11:51:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:33–12:21 on the 9th, 11:33–12:21 on the 10th.", "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 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3319 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Cairo, 2003: Thursday 10 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": "2003-04-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-10", "confidence": "boundary" } ], "quote": "In Cairo, Bhavānī Utpatti 2003 falls on Thursday 10 April. Aṣṭamī runs from 13:16 on Wed 9 Apr to 13:52 on Thu 10 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4599, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2003-04-10T13:51:54+02:00", "utc": "2003-04-10T11:51:54Z", "ms": 1049975513912.5726 }, "end": { "local": "2003-04-11T13:37:05+02:00", "utc": "2003-04-11T11:37:05Z", "ms": 1050061024594.7322 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-10T13:51:54+02:00", "utc": "2003-04-10T11:51:54Z", "ms": 1049975513912.5726 }, "end": { "local": "2003-04-11T13:37:05+02:00", "utc": "2003-04-11T11:37:05Z", "ms": 1050061024594.7322 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-10", "window": { "start": { "local": "2003-04-10T11:32:41+02:00", "utc": "2003-04-10T09:32:41Z", "ms": 1049967161450.8153 }, "end": { "local": "2003-04-10T12:20:41+02:00", "utc": "2003-04-10T10:20:41Z", "ms": 1049970041450.8153 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-04-11", "window": { "start": { "local": "2003-04-11T11:32:25+02:00", "utc": "2003-04-11T09:32:25Z", "ms": 1050053545343.3857 }, "end": { "local": "2003-04-11T12:20:25+02:00", "utc": "2003-04-11T10:20:25Z", "ms": 1050056425343.3857 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 13:52 on Thu 10 Apr to 13:37 on Fri 11 Apr.", "fact": "2003-04-10T11:51:54Z → 2003-04-11T11:37:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:33–12:21 on the 10th, 11:32–12:20 on the 11th.", "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 10th and 48 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: unstated → only-day · margin 4599 s" }, { "step": "ruling", "text": "Rāma Navamī, Cairo, 2003: Friday 11 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": "2003-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-11", "confidence": "determinate" } ], "quote": "In Cairo, Rāma Navamī 2003 falls on Friday 11 April. Navamī runs from 13:52 on Thu 10 Apr to 13:37 on Fri 11 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-04-13", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18356, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-04-12T12:31:08+02:00", "utc": "2003-04-12T10:31:08Z", "ms": 1050143468279.3009 }, "end": { "local": "2003-04-13T10:37:16+02:00", "utc": "2003-04-13T08:37:16Z", "ms": 1050223036461.1198 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-12T12:31:08+02:00", "utc": "2003-04-12T10:31:08Z", "ms": 1050143468279.3009 }, "end": { "local": "2003-04-13T10:37:16+02:00", "utc": "2003-04-13T08:37:16Z", "ms": 1050223036461.1198 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-04-12", "window": { "start": { "local": "2003-04-12T05:32:28+02:00", "utc": "2003-04-12T03:32:28Z", "ms": 1050118348018.6123 }, "end": { "local": "2003-04-12T05:32:28+02:00", "utc": "2003-04-12T03:32:28Z", "ms": 1050118348018.6123 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-04-13", "window": { "start": { "local": "2003-04-13T05:31:20+02:00", "utc": "2003-04-13T03:31:20Z", "ms": 1050204680069.5182 }, "end": { "local": "2003-04-13T05:31:20+02:00", "utc": "2003-04-13T03:31:20Z", "ms": 1050204680069.5182 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:31 on Sat 12 Apr to 10:37 on Sun 13 Apr.", "fact": "2003-04-12T10:31:08Z → 2003-04-13T08:37:16Z" }, { "step": "kaala", "text": "Sunrise is at 05:32 on the 12th and 05:31 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18356 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Cairo, 2003: Sunday 13 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": "2003-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-13", "confidence": "determinate" } ], "quote": "In Cairo, Kāmadā Ekādaśī 2003 falls on Sunday 13 April. Ekādaśī runs from 12:31 on Sat 12 Apr to 10:37 on Sun 13 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-04-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9990, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2003-04-14T08:16:43+02:00", "utc": "2003-04-14T06:16:43Z", "ms": 1050301003038.373 }, "end": { "local": "2003-05-15T06:10:33+03:00", "utc": "2003-05-15T03:10:33Z", "ms": 1052968233431.302 } }, "span": { "of": "transit", "start": { "local": "2003-04-14T08:16:43+02:00", "utc": "2003-04-14T06:16:43Z", "ms": 1050301003038.373 }, "end": { "local": "2003-04-14T08:16:43+02:00", "utc": "2003-04-14T06:16:43Z", "ms": 1050301003038.373 } }, "kaala": "day", "days": [ { "local_date": "2003-04-13", "window": { "start": { "local": "2003-04-13T05:31:20+02:00", "utc": "2003-04-13T03:31:20Z", "ms": 1050204680069.5182 }, "end": { "local": "2003-04-14T05:30:13+02:00", "utc": "2003-04-14T03:30:13Z", "ms": 1050291012643.4598 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "2003-04-14", "window": { "start": { "local": "2003-04-14T05:30:13+02:00", "utc": "2003-04-14T03:30:13Z", "ms": 1050291012643.4598 }, "end": { "local": "2003-04-15T05:29:06+02:00", "utc": "2003-04-15T03:29:06Z", "ms": 1050377345769.4154 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 08:17 on Mon 14 Apr.", "fact": "2003-04-14T06:16:43Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:31 on the 13th, and from 05:30 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 9990 s" }, { "step": "ruling", "text": "Vaiśākhī, Cairo, 2003: Monday 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": "2003-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2003-04-14", "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": "2003-04-14", "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 Cairo, Vaiśākhī 2003 falls on Monday 14 April. The Sun enters Meṣa at 08:17 on Mon 14 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12593, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-04-14T08:01:46+02:00", "utc": "2003-04-14T06:01:46Z", "ms": 1050300105875.6382 }, "end": { "local": "2003-04-15T04:53:03+02:00", "utc": "2003-04-15T02:53:03Z", "ms": 1050375183215.7483 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-14T08:01:46+02:00", "utc": "2003-04-14T06:01:46Z", "ms": 1050300105875.6382 }, "end": { "local": "2003-04-15T04:53:03+02:00", "utc": "2003-04-15T02:53:03Z", "ms": 1050375183215.7483 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-14", "window": { "start": { "local": "2003-04-14T11:31:39+02:00", "utc": "2003-04-14T09:31:39Z", "ms": 1050312698677.2004 }, "end": { "local": "2003-04-14T12:19:39+02:00", "utc": "2003-04-14T10:19:39Z", "ms": 1050315578677.2004 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-04-15", "window": { "start": { "local": "2003-04-15T11:31:24+02:00", "utc": "2003-04-15T09:31:24Z", "ms": 1050399083735.1453 }, "end": { "local": "2003-04-15T12:19:24+02:00", "utc": "2003-04-15T10:19:24Z", "ms": 1050401963735.1453 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:02 on Mon 14 Apr to 04:53 on Tue 15 Apr.", "fact": "2003-04-14T06:01:46Z → 2003-04-15T02:53:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:32–12:20 on the 14th, 11:31–12:19 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 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 12593 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Cairo, 2003: Monday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ananga-trayodashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-14", "confidence": "determinate" } ], "quote": "In Cairo, Anaṅga Trayodaśī 2003 falls on Monday 14 April. Trayodaśī runs from 08:02 on Mon 14 Apr to 04:53 on Tue 15 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-04-14", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32574, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-04-14T08:01:46+02:00", "utc": "2003-04-14T06:01:46Z", "ms": 1050300105875.6382 }, "end": { "local": "2003-04-15T04:53:03+02:00", "utc": "2003-04-15T02:53:03Z", "ms": 1050375183215.7483 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-14T08:01:46+02:00", "utc": "2003-04-14T06:01:46Z", "ms": 1050300105875.6382 }, "end": { "local": "2003-04-15T04:53:03+02:00", "utc": "2003-04-15T02:53:03Z", "ms": 1050375183215.7483 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-04-13", "window": { "start": { "local": "2003-04-13T18:20:28+02:00", "utc": "2003-04-13T16:20:28Z", "ms": 1050250827807.6451 }, "end": { "local": "2003-04-13T19:49:46+02:00", "utc": "2003-04-13T17:49:46Z", "ms": 1050256185785.7538 } }, "covered_min": 0, "window_min": 89, "qualifies": false }, { "local_date": "2003-04-14", "window": { "start": { "local": "2003-04-14T18:21:05+02:00", "utc": "2003-04-14T16:21:05Z", "ms": 1050337264710.9409 }, "end": { "local": "2003-04-14T19:50:09+02:00", "utc": "2003-04-14T17:50:09Z", "ms": 1050342608852.0708 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:02 on Mon 14 Apr to 04:53 on Tue 15 Apr.", "fact": "2003-04-14T06:01:46Z → 2003-04-15T02:53:03Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:20–19:50 on the 13th, 18:21–19:50 on the 14th.", "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 89 minutes on the 13th and 89 of 89 on the 14th.", "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 32574 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Monday 14 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": "2003-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-14", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Monday 14 April. Trayodaśī runs from 08:02 on Mon 14 Apr to 04:53 on Tue 15 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-04-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23901, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-04-15T04:53:03+02:00", "utc": "2003-04-15T02:53:03Z", "ms": 1050375183215.7483 }, "end": { "local": "2003-04-16T01:20:54+02:00", "utc": "2003-04-15T23:20:54Z", "ms": 1050448854127.319 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-15T04:53:03+02:00", "utc": "2003-04-15T02:53:03Z", "ms": 1050375183215.7483 }, "end": { "local": "2003-04-16T01:20:54+02:00", "utc": "2003-04-15T23:20:54Z", "ms": 1050448854127.319 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-15", "window": { "start": { "local": "2003-04-15T11:31:24+02:00", "utc": "2003-04-15T09:31:24Z", "ms": 1050399083735.1453 }, "end": { "local": "2003-04-15T12:19:24+02:00", "utc": "2003-04-15T10:19:24Z", "ms": 1050401963735.1453 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-04-16", "window": { "start": { "local": "2003-04-16T11:31:09+02:00", "utc": "2003-04-16T09:31:09Z", "ms": 1050485469132.2283 }, "end": { "local": "2003-04-16T12:19:09+02:00", "utc": "2003-04-16T10:19:09Z", "ms": 1050488349132.2283 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:53 on Tue 15 Apr to 01:21 on Wed 16 Apr.", "fact": "2003-04-15T02:53:03Z → 2003-04-15T23:20:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:31–12:19 on the 15th, 11:31–12:19 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 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: paraviddha → only-day · margin 23901 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Cairo, 2003: Tuesday 15 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vishnu-damanaka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-15", "confidence": "determinate" } ], "quote": "In Cairo, Viṣṇudamanaka Caturdaśī 2003 falls on Tuesday 15 April. Caturdaśī runs from 04:53 on Tue 15 Apr to 01:21 on Wed 16 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33393, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-04-16T01:20:54+02:00", "utc": "2003-04-15T23:20:54Z", "ms": 1050448854127.319 }, "end": { "local": "2003-04-16T21:35:42+02:00", "utc": "2003-04-16T19:35:42Z", "ms": 1050521742109.2137 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2003-04-16T01:20:54+02:00", "utc": "2003-04-15T23:20:54Z", "ms": 1050448854127.319 }, "end": { "local": "2003-04-16T21:35:42+02:00", "utc": "2003-04-16T19:35:42Z", "ms": 1050521742109.2137 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-04-15", "window": { "start": { "local": "2003-04-15T11:31:24+02:00", "utc": "2003-04-15T09:31:24Z", "ms": 1050399083735.1453 }, "end": { "local": "2003-04-15T12:19:24+02:00", "utc": "2003-04-15T10:19:24Z", "ms": 1050401963735.1453 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-04-16", "window": { "start": { "local": "2003-04-16T11:31:09+02:00", "utc": "2003-04-16T09:31:09Z", "ms": 1050485469132.2283 }, "end": { "local": "2003-04-16T12:19:09+02:00", "utc": "2003-04-16T10:19:09Z", "ms": 1050488349132.2283 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:21 on Wed 16 Apr to 21:36 on Wed 16 Apr.", "fact": "2003-04-15T23:20:54Z → 2003-04-16T19:35:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:31–12:19 on the 15th, 11:31–12:19 on the 16th.", "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 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: paraviddha → only-day · margin 33393 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Cairo, 2003: Wednesday 16 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": "2003-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-16", "confidence": "determinate" } ], "quote": "In Cairo, Caitrī Pūrṇimā 2003 falls on Wednesday 16 April. Pūrṇimā runs from 01:21 on Wed 16 Apr to 21:36 on Wed 16 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-04-19", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36178, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-04-19T10:45:01+02:00", "utc": "2003-04-19T08:45:01Z", "ms": 1050741901153.579 }, "end": { "local": "2003-04-20T07:47:58+02:00", "utc": "2003-04-20T05:47:58Z", "ms": 1050817678070.4722 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-04-19T10:45:01+02:00", "utc": "2003-04-19T08:45:01Z", "ms": 1050741901153.579 }, "end": { "local": "2003-04-20T07:47:58+02:00", "utc": "2003-04-20T05:47:58Z", "ms": 1050817678070.4722 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-04-18", "window": { "start": { "local": "2003-04-18T20:32:50+02:00", "utc": "2003-04-18T18:32:50Z", "ms": 1050690769579.2747 }, "end": { "local": "2003-04-18T20:32:50+02:00", "utc": "2003-04-18T18:32:50Z", "ms": 1050690769579.2747 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-04-19", "window": { "start": { "local": "2003-04-19T21:45:00+02:00", "utc": "2003-04-19T19:45:00Z", "ms": 1050781500485.4589 }, "end": { "local": "2003-04-19T21:45:00+02:00", "utc": "2003-04-19T19:45:00Z", "ms": 1050781500485.4589 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:45 on Sat 19 Apr to 07:48 on Sun 20 Apr.", "fact": "2003-04-19T08:45:01Z → 2003-04-20T05:47:58Z" }, { "step": "kaala", "text": "Moonrise is at 20:33 on the 18th and 21:45 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 18th and is on the 19th.", "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 36178 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Saturday 19 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": "2003-04-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-19", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Saturday 19 April. Caturthī runs from 10:45 on Sat 19 Apr to 07:48 on Sun 20 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-04-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-04-26", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1036, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-04-26T04:29:54+03:00", "utc": "2003-04-26T01:29:54Z", "ms": 1051320594157.8461 }, "end": { "local": "2003-04-27T05:59:21+03:00", "utc": "2003-04-27T02:59:21Z", "ms": 1051412360890.2474 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-04-26T04:29:54+03:00", "utc": "2003-04-26T01:29:54Z", "ms": 1051320594157.8461 }, "end": { "local": "2003-04-27T05:59:21+03:00", "utc": "2003-04-27T02:59:21Z", "ms": 1051412360890.2474 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-04-26", "window": { "start": { "local": "2003-04-26T06:17:35+03:00", "utc": "2003-04-26T03:17:35Z", "ms": 1051327054875.3159 }, "end": { "local": "2003-04-26T06:17:35+03:00", "utc": "2003-04-26T03:17:35Z", "ms": 1051327054875.3159 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-04-27", "window": { "start": { "local": "2003-04-27T06:16:37+03:00", "utc": "2003-04-27T03:16:37Z", "ms": 1051413396844.1538 }, "end": { "local": "2003-04-27T06:16:37+03:00", "utc": "2003-04-27T03:16:37Z", "ms": 1051413396844.1538 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:30 on Sat 26 Apr to 05:59 on Sun 27 Apr.", "fact": "2003-04-26T01:29:54Z → 2003-04-27T02:59:21Z" }, { "step": "kaala", "text": "Sunrise is at 06:18 on the 26th and 06:17 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1036 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Cairo, 2003: Saturday 26 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": "2003-04-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-26", "confidence": "determinate" } ], "quote": "In Cairo, Varūthinī Ekādaśī 2003 falls on Saturday 26 April. Ekādaśī runs from 04:30 on Sat 26 Apr to 05:59 on Sun 27 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-04-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-04-28", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33615, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-04-28T07:54:57+03:00", "utc": "2003-04-28T04:54:57Z", "ms": 1051505697037.8877 }, "end": { "local": "2003-04-29T10:10:18+03:00", "utc": "2003-04-29T07:10:18Z", "ms": 1051600217536.7305 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-04-28T07:54:57+03:00", "utc": "2003-04-28T04:54:57Z", "ms": 1051505697037.8877 }, "end": { "local": "2003-04-29T10:10:18+03:00", "utc": "2003-04-29T07:10:18Z", "ms": 1051600217536.7305 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-04-28", "window": { "start": { "local": "2003-04-28T19:29:54+03:00", "utc": "2003-04-28T16:29:54Z", "ms": 1051547393661.0201 }, "end": { "local": "2003-04-28T20:55:52+03:00", "utc": "2003-04-28T17:55:52Z", "ms": 1051552552308.589 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2003-04-29", "window": { "start": { "local": "2003-04-29T19:30:32+03:00", "utc": "2003-04-29T16:30:32Z", "ms": 1051633832366.0656 }, "end": { "local": "2003-04-29T20:56:18+03:00", "utc": "2003-04-29T17:56:18Z", "ms": 1051638978486.2448 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:55 on Mon 28 Apr to 10:10 on Tue 29 Apr.", "fact": "2003-04-28T04:54:57Z → 2003-04-29T07:10:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:30–20:56 on the 28th, 19:31–20:56 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 86 of 86 minutes on the 28th and 0 of 86 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33615 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Monday 28 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": "2003-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-28", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Monday 28 April. Trayodaśī runs from 07:55 on Mon 28 Apr to 10:10 on Tue 29 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-04-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-04-29", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32039, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-04-29T10:10:18+03:00", "utc": "2003-04-29T07:10:18Z", "ms": 1051600217536.7305 }, "end": { "local": "2003-04-30T12:39:00+03:00", "utc": "2003-04-30T09:39:00Z", "ms": 1051695539972.794 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-04-29T10:10:18+03:00", "utc": "2003-04-29T07:10:18Z", "ms": 1051600217536.7305 }, "end": { "local": "2003-04-30T12:39:00+03:00", "utc": "2003-04-30T09:39:00Z", "ms": 1051695539972.794 } }, "kaala": "nishita", "days": [ { "local_date": "2003-04-28", "window": { "start": { "local": "2003-04-29T00:28:19+03:00", "utc": "2003-04-28T21:28:19Z", "ms": 1051565298589.4033 }, "end": { "local": "2003-04-29T01:16:19+03:00", "utc": "2003-04-28T22:16:19Z", "ms": 1051568178589.4033 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-04-29", "window": { "start": { "local": "2003-04-30T00:28:10+03:00", "utc": "2003-04-29T21:28:10Z", "ms": 1051651690316.7373 }, "end": { "local": "2003-04-30T01:16:10+03:00", "utc": "2003-04-29T22:16:10Z", "ms": 1051654570316.7373 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:10 on Tue 29 Apr to 12:39 on Wed 30 Apr.", "fact": "2003-04-29T07:10:18Z → 2003-04-30T09:39:00Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 28th, 00:28–01:16 on the 29th.", "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 28th and 48 of 48 on the 29th.", "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 32039 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Tuesday 29 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": "2003-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-04-29", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Tuesday 29 April. Caturdaśī runs from 10:10 on Tue 29 Apr to 12:39 on Wed 30 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-04-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27028, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2003-05-03T20:21:49+03:00", "utc": "2003-05-03T17:21:49Z", "ms": 1051982508514.4086 }, "end": { "local": "2003-05-04T22:38:59+03:00", "utc": "2003-05-04T19:38:59Z", "ms": 1052077138679.2926 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-03T20:21:49+03:00", "utc": "2003-05-03T17:21:49Z", "ms": 1051982508514.4086 }, "end": { "local": "2003-05-04T22:38:59+03:00", "utc": "2003-05-04T19:38:59Z", "ms": 1052077138679.2926 } }, "kaala": "purvahna", "days": [ { "local_date": "2003-05-04", "window": { "start": { "local": "2003-05-04T06:10:17+03:00", "utc": "2003-05-04T03:10:17Z", "ms": 1052017817184.6882 }, "end": { "local": "2003-05-04T10:38:07+03:00", "utc": "2003-05-04T07:38:07Z", "ms": 1052033887132.2025 } }, "covered_min": 268, "window_min": 268, "qualifies": true }, { "local_date": "2003-05-05", "window": { "start": { "local": "2003-05-05T06:09:27+03:00", "utc": "2003-05-05T03:09:27Z", "ms": 1052104166997.218 }, "end": { "local": "2003-05-05T10:37:47+03:00", "utc": "2003-05-05T07:37:47Z", "ms": 1052120266695.7577 } }, "covered_min": 0, "window_min": 268, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 20:22 on Sat 3 May to 22:39 on Sun 4 May.", "fact": "2003-05-03T17:21:49Z → 2003-05-04T19:38:59Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:10–10:38 on the 4th, 06:09–10:38 on the 5th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 268 of 268 minutes on the 4th and 0 of 268 on the 5th.", "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 27028 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Cairo, 2003: Sunday 4 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": "2003-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-04", "confidence": "determinate" } ], "quote": "In Cairo, Akṣaya Tṛtīyā 2003 falls on Sunday 4 May. Tṛtīyā runs from 20:22 on Sat 3 May to 22:39 on Sun 4 May and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2177, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2003-05-03T20:21:49+03:00", "utc": "2003-05-03T17:21:49Z", "ms": 1051982508514.4086 }, "end": { "local": "2003-05-04T22:38:59+03:00", "utc": "2003-05-04T19:38:59Z", "ms": 1052077138679.2926 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-03T20:21:49+03:00", "utc": "2003-05-03T17:21:49Z", "ms": 1051982508514.4086 }, "end": { "local": "2003-05-04T22:38:59+03:00", "utc": "2003-05-04T19:38:59Z", "ms": 1052077138679.2926 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-05-03", "window": { "start": { "local": "2003-05-03T19:33:08+03:00", "utc": "2003-05-03T16:33:08Z", "ms": 1051979587986.5911 }, "end": { "local": "2003-05-03T20:58:05+03:00", "utc": "2003-05-03T17:58:05Z", "ms": 1051984685213.004 } }, "covered_min": 36, "window_min": 85, "qualifies": true }, { "local_date": "2003-05-04", "window": { "start": { "local": "2003-05-04T19:33:47+03:00", "utc": "2003-05-04T16:33:47Z", "ms": 1052066027027.231 }, "end": { "local": "2003-05-04T20:58:32+03:00", "utc": "2003-05-04T17:58:32Z", "ms": 1052071112356.5626 } }, "covered_min": 85, "window_min": 85, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 20:22 on Sat 3 May to 22:39 on Sun 4 May.", "fact": "2003-05-03T17:21:49Z → 2003-05-04T19:38:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:33–20:58 on the 3rd, 19:34–20:59 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 36 of 85 minutes on the 3rd and 85 of 85 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both evenings qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 2177 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Cairo, 2003: Sunday 4 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": "2003-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-04", "confidence": "determinate" } ], "quote": "In Cairo, Paraśurāma Jayantī 2003 falls on Sunday 4 May. Tṛtīyā runs from 20:22 on Sat 3 May to 22:39 on Sun 4 May and covers all of pradoṣa that evening. It also reaches the previous evening for 36 minutes; by the rule the second evening is taken.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-05-05", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33777, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-05-04T22:38:59+03:00", "utc": "2003-05-04T19:38:59Z", "ms": 1052077138679.2926 }, "end": { "local": "2003-05-06T00:35:05+03:00", "utc": "2003-05-05T21:35:05Z", "ms": 1052170504637.0453 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-04T22:38:59+03:00", "utc": "2003-05-04T19:38:59Z", "ms": 1052077138679.2926 }, "end": { "local": "2003-05-06T00:35:05+03:00", "utc": "2003-05-05T21:35:05Z", "ms": 1052170504637.0453 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-05-04", "window": { "start": { "local": "2003-05-04T12:28:02+03:00", "utc": "2003-05-04T09:28:02Z", "ms": 1052040482105.9596 }, "end": { "local": "2003-05-04T13:16:02+03:00", "utc": "2003-05-04T10:16:02Z", "ms": 1052043362105.9596 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-05-05", "window": { "start": { "local": "2003-05-05T12:27:57+03:00", "utc": "2003-05-05T09:27:57Z", "ms": 1052126876545.0275 }, "end": { "local": "2003-05-05T13:15:57+03:00", "utc": "2003-05-05T10:15:57Z", "ms": 1052129756545.0275 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:39 on Sun 4 May to 00:35 on Tue 6 May.", "fact": "2003-05-04T19:38:59Z → 2003-05-05T21:35:05Z" }, { "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": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33777 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Monday 5 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": "2003-05-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-05", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Monday 5 May. Caturthī runs from 22:39 on Sun 4 May to 00:35 on Tue 6 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-05-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37524, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2003-05-06T00:35:05+03:00", "utc": "2003-05-05T21:35:05Z", "ms": 1052170504637.0453 }, "end": { "local": "2003-05-07T02:02:23+03:00", "utc": "2003-05-06T23:02:23Z", "ms": 1052262142589.2341 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-06T00:35:05+03:00", "utc": "2003-05-05T21:35:05Z", "ms": 1052170504637.0453 }, "end": { "local": "2003-05-07T02:02:23+03:00", "utc": "2003-05-06T23:02:23Z", "ms": 1052262142589.2341 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-05-06", "window": { "start": { "local": "2003-05-06T12:27:52+03:00", "utc": "2003-05-06T09:27:52Z", "ms": 1052213271525.2913 }, "end": { "local": "2003-05-06T13:15:52+03:00", "utc": "2003-05-06T10:15:52Z", "ms": 1052216151525.2913 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-05-07", "window": { "start": { "local": "2003-05-07T12:27:47+03:00", "utc": "2003-05-07T09:27:47Z", "ms": 1052299667048.2097 }, "end": { "local": "2003-05-07T13:15:47+03:00", "utc": "2003-05-07T10:15:47Z", "ms": 1052302547048.2097 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:35 on Tue 6 May to 02:02 on Wed 7 May.", "fact": "2003-05-05T21:35:05Z → 2003-05-06T23:02:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 6th, 12:28–13:16 on the 7th.", "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 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37524 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Cairo, 2003: Tuesday 6 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": "2003-05-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-06", "confidence": "determinate" } ], "quote": "In Cairo, Śaṅkara Jayantī 2003 falls on Tuesday 6 May. Pañcamī runs from 00:35 on Tue 6 May to 02:02 on Wed 7 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33795, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2003-05-08T02:53:55+03:00", "utc": "2003-05-07T23:53:55Z", "ms": 1052351635404.0149 }, "end": { "local": "2003-05-09T03:04:24+03:00", "utc": "2003-05-09T00:04:24Z", "ms": 1052438664383.6206 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-08T02:53:55+03:00", "utc": "2003-05-07T23:53:55Z", "ms": 1052351635404.0149 }, "end": { "local": "2003-05-09T03:04:24+03:00", "utc": "2003-05-09T00:04:24Z", "ms": 1052438664383.6206 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-05-08", "window": { "start": { "local": "2003-05-08T12:27:43+03:00", "utc": "2003-05-08T09:27:43Z", "ms": 1052386063114.9026 }, "end": { "local": "2003-05-08T13:15:43+03:00", "utc": "2003-05-08T10:15:43Z", "ms": 1052388943114.9026 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-05-09", "window": { "start": { "local": "2003-05-09T12:27:40+03:00", "utc": "2003-05-09T09:27:40Z", "ms": 1052472459726.2727 }, "end": { "local": "2003-05-09T13:15:40+03:00", "utc": "2003-05-09T10:15:40Z", "ms": 1052475339726.2727 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:54 on Thu 8 May to 03:04 on Fri 9 May.", "fact": "2003-05-07T23:53:55Z → 2003-05-09T00:04:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 8th, 12:28–13:16 on the 9th.", "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 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33795 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Cairo, 2003: Thursday 8 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": "2003-05-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-08", "confidence": "determinate" } ], "quote": "In Cairo, Gaṅgotpatti (Ganga Saptami) 2003 falls on Thursday 8 May. Saptamī runs from 02:54 on Thu 8 May to 03:04 on Fri 9 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-05-12", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24634, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-05-11T23:13:33+03:00", "utc": "2003-05-11T20:13:33Z", "ms": 1052684013022.0312 }, "end": { "local": "2003-05-12T20:37:09+03:00", "utc": "2003-05-12T17:37:09Z", "ms": 1052761028528.2775 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-11T23:13:33+03:00", "utc": "2003-05-11T20:13:33Z", "ms": 1052684013022.0312 }, "end": { "local": "2003-05-12T20:37:09+03:00", "utc": "2003-05-12T17:37:09Z", "ms": 1052761028528.2775 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-05-12", "window": { "start": { "local": "2003-05-12T06:04:07+03:00", "utc": "2003-05-12T03:04:07Z", "ms": 1052708646842.4664 }, "end": { "local": "2003-05-12T06:04:07+03:00", "utc": "2003-05-12T03:04:07Z", "ms": 1052708646842.4664 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-05-13", "window": { "start": { "local": "2003-05-13T06:03:26+03:00", "utc": "2003-05-13T03:03:26Z", "ms": 1052795005792.191 }, "end": { "local": "2003-05-13T06:03:26+03:00", "utc": "2003-05-13T03:03:26Z", "ms": 1052795005792.191 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:14 on Sun 11 May to 20:37 on Mon 12 May.", "fact": "2003-05-11T20:13:33Z → 2003-05-12T17:37:09Z" }, { "step": "kaala", "text": "Sunrise is at 06:04 on the 12th and 06:03 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24634 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Cairo, 2003: Monday 12 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": "2003-05-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-12", "confidence": "determinate" } ], "quote": "In Cairo, Mohinī Ekādaśī 2003 falls on Monday 12 May. Ekādaśī runs from 23:14 on Sun 11 May to 20:37 on Mon 12 May and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-05-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15306, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2003-05-12T20:37:09+03:00", "utc": "2003-05-12T17:37:09Z", "ms": 1052761028528.2775 }, "end": { "local": "2003-05-13T17:30:38+03:00", "utc": "2003-05-13T14:30:38Z", "ms": 1052836238095.0531 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-12T20:37:09+03:00", "utc": "2003-05-12T17:37:09Z", "ms": 1052761028528.2775 }, "end": { "local": "2003-05-13T17:30:38+03:00", "utc": "2003-05-13T14:30:38Z", "ms": 1052836238095.0531 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-05-12", "window": { "start": { "local": "2003-05-12T12:27:33+03:00", "utc": "2003-05-12T09:27:33Z", "ms": 1052731652837.9677 }, "end": { "local": "2003-05-12T13:15:33+03:00", "utc": "2003-05-12T10:15:33Z", "ms": 1052734532837.9677 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-05-13", "window": { "start": { "local": "2003-05-13T12:27:32+03:00", "utc": "2003-05-13T09:27:32Z", "ms": 1052818051639.1622 }, "end": { "local": "2003-05-13T13:15:32+03:00", "utc": "2003-05-13T10:15:32Z", "ms": 1052820931639.1622 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 20:37 on Mon 12 May to 17:31 on Tue 13 May.", "fact": "2003-05-12T17:37:09Z → 2003-05-13T14:30:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 12th, 12:28–13:16 on the 13th.", "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 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: purvaviddha → only-day · margin 15306 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Cairo, 2003: Tuesday 13 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": "2003-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-13", "confidence": "determinate" } ], "quote": "In Cairo, Paraśurāma Dvādaśī 2003 falls on Tuesday 13 May. Dvādaśī runs from 20:37 on Mon 12 May to 17:31 on Tue 13 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15306, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2003-05-12T20:37:09+03:00", "utc": "2003-05-12T17:37:09Z", "ms": 1052761028528.2775 }, "end": { "local": "2003-05-13T17:30:38+03:00", "utc": "2003-05-13T14:30:38Z", "ms": 1052836238095.0531 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-12T20:37:09+03:00", "utc": "2003-05-12T17:37:09Z", "ms": 1052761028528.2775 }, "end": { "local": "2003-05-13T17:30:38+03:00", "utc": "2003-05-13T14:30:38Z", "ms": 1052836238095.0531 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-05-12", "window": { "start": { "local": "2003-05-12T12:27:33+03:00", "utc": "2003-05-12T09:27:33Z", "ms": 1052731652837.9677 }, "end": { "local": "2003-05-12T13:15:33+03:00", "utc": "2003-05-12T10:15:33Z", "ms": 1052734532837.9677 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-05-13", "window": { "start": { "local": "2003-05-13T12:27:32+03:00", "utc": "2003-05-13T09:27:32Z", "ms": 1052818051639.1622 }, "end": { "local": "2003-05-13T13:15:32+03:00", "utc": "2003-05-13T10:15:32Z", "ms": 1052820931639.1622 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 20:37 on Mon 12 May to 17:31 on Tue 13 May.", "fact": "2003-05-12T17:37:09Z → 2003-05-13T14:30:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 12th, 12:28–13:16 on the 13th.", "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 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: purvaviddha → only-day · margin 15306 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Cairo, 2003: Tuesday 13 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": "2003-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-13", "confidence": "determinate" } ], "quote": "In Cairo, Rukmiṇī Dvādaśī 2003 falls on Tuesday 13 May. Dvādaśī runs from 20:37 on Mon 12 May to 17:31 on Tue 13 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-05-13", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7739, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-05-13T17:30:38+03:00", "utc": "2003-05-13T14:30:38Z", "ms": 1052836238095.0531 }, "end": { "local": "2003-05-14T14:02:10+03:00", "utc": "2003-05-14T11:02:10Z", "ms": 1052910129968.8129 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-13T17:30:38+03:00", "utc": "2003-05-13T14:30:38Z", "ms": 1052836238095.0531 }, "end": { "local": "2003-05-14T14:02:10+03:00", "utc": "2003-05-14T11:02:10Z", "ms": 1052910129968.8129 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-05-13", "window": { "start": { "local": "2003-05-13T19:39:37+03:00", "utc": "2003-05-13T16:39:37Z", "ms": 1052843977486.1334 }, "end": { "local": "2003-05-13T21:02:43+03:00", "utc": "2003-05-13T18:02:43Z", "ms": 1052848962617.6743 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "2003-05-14", "window": { "start": { "local": "2003-05-14T19:40:16+03:00", "utc": "2003-05-14T16:40:16Z", "ms": 1052930416012.4993 }, "end": { "local": "2003-05-14T21:03:11+03:00", "utc": "2003-05-14T18:03:11Z", "ms": 1052935390864.6683 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:31 on Tue 13 May to 14:02 on Wed 14 May.", "fact": "2003-05-13T14:30:38Z → 2003-05-14T11:02:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:40–21:03 on the 13th, 19:40–21:03 on the 14th.", "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 13th and 0 of 83 on the 14th.", "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 7739 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Tuesday 13 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": "2003-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-13", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Tuesday 13 May. Trayodaśī runs from 17:31 on Tue 13 May to 14:02 on Wed 14 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-05-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20286, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-05-14T14:02:10+03:00", "utc": "2003-05-14T11:02:10Z", "ms": 1052910129968.8129 }, "end": { "local": "2003-05-15T10:20:46+03:00", "utc": "2003-05-15T07:20:46Z", "ms": 1052983245849.9531 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-14T14:02:10+03:00", "utc": "2003-05-14T11:02:10Z", "ms": 1052910129968.8129 }, "end": { "local": "2003-05-15T10:20:46+03:00", "utc": "2003-05-15T07:20:46Z", "ms": 1052983245849.9531 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-05-14", "window": { "start": { "local": "2003-05-14T19:40:16+03:00", "utc": "2003-05-14T16:40:16Z", "ms": 1052930416012.4993 }, "end": { "local": "2003-05-14T21:03:11+03:00", "utc": "2003-05-14T18:03:11Z", "ms": 1052935390864.6683 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "2003-05-15", "window": { "start": { "local": "2003-05-15T19:40:54+03:00", "utc": "2003-05-15T16:40:54Z", "ms": 1053016854398.0883 }, "end": { "local": "2003-05-15T21:03:39+03:00", "utc": "2003-05-15T18:03:39Z", "ms": 1053021819159.0122 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:02 on Wed 14 May to 10:21 on Thu 15 May.", "fact": "2003-05-14T11:02:10Z → 2003-05-15T07:20:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:40–21:03 on the 14th, 19:41–21:04 on the 15th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 14th and 0 of 83 on the 15th.", "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 20286 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Cairo, 2003: Wednesday 14 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": "2003-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-14", "confidence": "determinate" } ], "quote": "In Cairo, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2003 falls on Wednesday 14 May. Caturdaśī runs from 14:02 on Wed 14 May to 10:21 on Thu 15 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7605, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-05-15T10:20:46+03:00", "utc": "2003-05-15T07:20:46Z", "ms": 1052983245849.9531 }, "end": { "local": "2003-05-16T06:35:58+03:00", "utc": "2003-05-16T03:35:58Z", "ms": 1053056157543.4548 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-15T10:20:46+03:00", "utc": "2003-05-15T07:20:46Z", "ms": 1052983245849.9531 }, "end": { "local": "2003-05-16T06:35:58+03:00", "utc": "2003-05-16T03:35:58Z", "ms": 1053056157543.4548 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-05-15", "window": { "start": { "local": "2003-05-15T12:27:31+03:00", "utc": "2003-05-15T09:27:31Z", "ms": 1052990850900.9277 }, "end": { "local": "2003-05-15T13:15:31+03:00", "utc": "2003-05-15T10:15:31Z", "ms": 1052993730900.9277 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-05-16", "window": { "start": { "local": "2003-05-16T12:27:31+03:00", "utc": "2003-05-16T09:27:31Z", "ms": 1053077251366.6584 }, "end": { "local": "2003-05-16T13:15:31+03:00", "utc": "2003-05-16T10:15:31Z", "ms": 1053080131366.6584 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:21 on Thu 15 May to 06:36 on Fri 16 May.", "fact": "2003-05-15T07:20:46Z → 2003-05-16T03:35:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 15th, 12:28–13:16 on the 16th.", "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 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 7605 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Cairo, 2003: Thursday 15 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": "2003-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-15", "confidence": "determinate" } ], "quote": "In Cairo, Buddha Pūrṇimā 2003 falls on Thursday 15 May. Pūrṇimā runs from 10:21 on Thu 15 May to 06:36 on Fri 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7605, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-05-15T10:20:46+03:00", "utc": "2003-05-15T07:20:46Z", "ms": 1052983245849.9531 }, "end": { "local": "2003-05-16T06:35:58+03:00", "utc": "2003-05-16T03:35:58Z", "ms": 1053056157543.4548 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-15T10:20:46+03:00", "utc": "2003-05-15T07:20:46Z", "ms": 1052983245849.9531 }, "end": { "local": "2003-05-16T06:35:58+03:00", "utc": "2003-05-16T03:35:58Z", "ms": 1053056157543.4548 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-05-15", "window": { "start": { "local": "2003-05-15T12:27:31+03:00", "utc": "2003-05-15T09:27:31Z", "ms": 1052990850900.9277 }, "end": { "local": "2003-05-15T13:15:31+03:00", "utc": "2003-05-15T10:15:31Z", "ms": 1052993730900.9277 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-05-16", "window": { "start": { "local": "2003-05-16T12:27:31+03:00", "utc": "2003-05-16T09:27:31Z", "ms": 1053077251366.6584 }, "end": { "local": "2003-05-16T13:15:31+03:00", "utc": "2003-05-16T10:15:31Z", "ms": 1053080131366.6584 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:21 on Thu 15 May to 06:36 on Fri 16 May.", "fact": "2003-05-15T07:20:46Z → 2003-05-16T03:35:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 15th, 12:28–13:16 on the 16th.", "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 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: paraviddha → only-day · margin 7605 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Cairo, 2003: Thursday 15 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": "2003-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-15", "confidence": "determinate" } ], "quote": "In Cairo, Sampat Gaurī Vrata 2003 falls on Thursday 15 May. Pūrṇimā runs from 10:21 on Thu 15 May to 06:36 on Fri 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-05-18", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7402, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-05-18T20:37:19+03:00", "utc": "2003-05-18T17:37:19Z", "ms": 1053279439136.0698 }, "end": { "local": "2003-05-19T18:13:07+03:00", "utc": "2003-05-19T15:13:07Z", "ms": 1053357186817.0317 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-18T20:37:19+03:00", "utc": "2003-05-18T17:37:19Z", "ms": 1053279439136.0698 }, "end": { "local": "2003-05-19T18:13:07+03:00", "utc": "2003-05-19T15:13:07Z", "ms": 1053357186817.0317 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-05-18", "window": { "start": { "local": "2003-05-18T22:40:41+03:00", "utc": "2003-05-18T19:40:41Z", "ms": 1053286841246.9891 }, "end": { "local": "2003-05-18T22:40:41+03:00", "utc": "2003-05-18T19:40:41Z", "ms": 1053286841246.9891 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-05-19", "window": { "start": { "local": "2003-05-19T23:41:35+03:00", "utc": "2003-05-19T20:41:35Z", "ms": 1053376894627.1445 }, "end": { "local": "2003-05-19T23:41:35+03:00", "utc": "2003-05-19T20:41:35Z", "ms": 1053376894627.1445 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:37 on Sun 18 May to 18:13 on Mon 19 May.", "fact": "2003-05-18T17:37:19Z → 2003-05-19T15:13:07Z" }, { "step": "kaala", "text": "Moonrise is at 22:41 on the 18th and 23:42 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 18th and is not on the 19th.", "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 7402 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Sunday 18 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": "2003-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-18", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Sunday 18 May. Caturthī runs from 20:37 on Sun 18 May to 18:13 on Mon 19 May and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-05-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-05-26", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31012, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-05-25T19:02:21+03:00", "utc": "2003-05-25T16:02:21Z", "ms": 1053878540630.2458 }, "end": { "local": "2003-05-26T21:19:16+03:00", "utc": "2003-05-26T18:19:16Z", "ms": 1053973155993.2632 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-25T19:02:21+03:00", "utc": "2003-05-25T16:02:21Z", "ms": 1053878540630.2458 }, "end": { "local": "2003-05-26T21:19:16+03:00", "utc": "2003-05-26T18:19:16Z", "ms": 1053973155993.2632 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-05-26", "window": { "start": { "local": "2003-05-26T05:56:31+03:00", "utc": "2003-05-26T02:56:31Z", "ms": 1053917790748.2738 }, "end": { "local": "2003-05-26T05:56:31+03:00", "utc": "2003-05-26T02:56:31Z", "ms": 1053917790748.2738 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-05-27", "window": { "start": { "local": "2003-05-27T05:56:08+03:00", "utc": "2003-05-27T02:56:08Z", "ms": 1054004168458.2542 }, "end": { "local": "2003-05-27T05:56:08+03:00", "utc": "2003-05-27T02:56:08Z", "ms": 1054004168458.2542 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:02 on Sun 25 May to 21:19 on Mon 26 May.", "fact": "2003-05-25T16:02:21Z → 2003-05-26T18:19:16Z" }, { "step": "kaala", "text": "Sunrise is at 05:57 on the 26th and 05:56 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31012 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Cairo, 2003: Monday 26 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": "2003-05-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-26", "confidence": "determinate" } ], "quote": "In Cairo, Aparā Ekādaśī 2003 falls on Monday 26 May. Ekādaśī runs from 19:02 on Sun 25 May to 21:19 on Mon 26 May and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-05-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-05-28", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9705, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-05-27T23:51:02+03:00", "utc": "2003-05-27T20:51:02Z", "ms": 1054068661719.0278 }, "end": { "local": "2003-05-29T02:27:28+03:00", "utc": "2003-05-28T23:27:28Z", "ms": 1054164448155.8291 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-27T23:51:02+03:00", "utc": "2003-05-27T20:51:02Z", "ms": 1054068661719.0278 }, "end": { "local": "2003-05-29T02:27:28+03:00", "utc": "2003-05-28T23:27:28Z", "ms": 1054164448155.8291 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-05-27", "window": { "start": { "local": "2003-05-27T19:48:17+03:00", "utc": "2003-05-27T16:48:17Z", "ms": 1054054097041.1864 }, "end": { "local": "2003-05-27T21:09:17+03:00", "utc": "2003-05-27T18:09:17Z", "ms": 1054058957114.2882 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "2003-05-28", "window": { "start": { "local": "2003-05-28T19:48:52+03:00", "utc": "2003-05-28T16:48:52Z", "ms": 1054140531646.5533 }, "end": { "local": "2003-05-28T21:09:45+03:00", "utc": "2003-05-28T18:09:45Z", "ms": 1054145384512.9656 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:51 on Tue 27 May to 02:27 on Thu 29 May.", "fact": "2003-05-27T20:51:02Z → 2003-05-28T23:27:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:48–21:09 on the 27th, 19:49–21:10 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 81 minutes on the 27th and 81 of 81 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9705 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Wednesday 28 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": "2003-05-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-28", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Wednesday 28 May. Trayodaśī runs from 23:51 on Tue 27 May to 02:27 on Thu 29 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-05-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-05-29", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-05-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4278, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-05-29T02:27:28+03:00", "utc": "2003-05-28T23:27:28Z", "ms": 1054164448155.8291 }, "end": { "local": "2003-05-30T04:59:34+03:00", "utc": "2003-05-30T01:59:34Z", "ms": 1054259974208.9756 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-05-29T02:27:28+03:00", "utc": "2003-05-28T23:27:28Z", "ms": 1054164448155.8291 }, "end": { "local": "2003-05-30T04:59:34+03:00", "utc": "2003-05-30T01:59:34Z", "ms": 1054259974208.9756 } }, "kaala": "nishita", "days": [ { "local_date": "2003-05-28", "window": { "start": { "local": "2003-05-29T00:28:10+03:00", "utc": "2003-05-28T21:28:10Z", "ms": 1054157289895.5994 }, "end": { "local": "2003-05-29T01:16:10+03:00", "utc": "2003-05-28T22:16:10Z", "ms": 1054160169895.5994 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-05-29", "window": { "start": { "local": "2003-05-30T00:28:18+03:00", "utc": "2003-05-29T21:28:18Z", "ms": 1054243697940.7771 }, "end": { "local": "2003-05-30T01:16:18+03:00", "utc": "2003-05-29T22:16:18Z", "ms": 1054246577940.7771 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:27 on Thu 29 May to 05:00 on Fri 30 May.", "fact": "2003-05-28T23:27:28Z → 2003-05-30T01:59:34Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 28th, 00:28–01:16 on the 29th.", "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 28th and 48 of 48 on the 29th.", "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 4278 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Thursday 29 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": "2003-05-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-05-29", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Thursday 29 May. Caturdaśī runs from 02:27 on Thu 29 May to 05:00 on Fri 30 May and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-05-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 708, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2003-06-02T11:02:54+03:00", "utc": "2003-06-02T08:02:54Z", "ms": 1054540973752.0182 }, "end": { "local": "2003-06-03T12:17:22+03:00", "utc": "2003-06-03T09:17:22Z", "ms": 1054631842007.7699 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-02T11:02:54+03:00", "utc": "2003-06-02T08:02:54Z", "ms": 1054540973752.0182 }, "end": { "local": "2003-06-03T12:17:22+03:00", "utc": "2003-06-03T09:17:22Z", "ms": 1054631842007.7699 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-06-02", "window": { "start": { "local": "2003-06-02T12:29:01+03:00", "utc": "2003-06-02T09:29:01Z", "ms": 1054546140574.2781 }, "end": { "local": "2003-06-02T13:17:01+03:00", "utc": "2003-06-02T10:17:01Z", "ms": 1054549020574.2781 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-06-03", "window": { "start": { "local": "2003-06-03T12:29:10+03:00", "utc": "2003-06-03T09:29:10Z", "ms": 1054632549958.3323 }, "end": { "local": "2003-06-03T13:17:10+03:00", "utc": "2003-06-03T10:17:10Z", "ms": 1054635429958.3323 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 11:03 on Mon 2 Jun to 12:17 on Tue 3 Jun.", "fact": "2003-06-02T08:02:54Z → 2003-06-03T09:17:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 2nd, 12:29–13:17 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 708 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Cairo, 2003: Monday 2 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": "2003-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-02", "confidence": "determinate" } ], "quote": "In Cairo, Rambhā Tṛtīyā 2003 falls on Monday 2 June. Tṛtīyā runs from 11:03 on Mon 2 Jun to 12:17 on Tue 3 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-06-03", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-03", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 708, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-06-03T12:17:22+03:00", "utc": "2003-06-03T09:17:22Z", "ms": 1054631842007.7699 }, "end": { "local": "2003-06-04T13:02:58+03:00", "utc": "2003-06-04T10:02:58Z", "ms": 1054720978371.6594 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-03T12:17:22+03:00", "utc": "2003-06-03T09:17:22Z", "ms": 1054631842007.7699 }, "end": { "local": "2003-06-04T13:02:58+03:00", "utc": "2003-06-04T10:02:58Z", "ms": 1054720978371.6594 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-06-03", "window": { "start": { "local": "2003-06-03T12:29:10+03:00", "utc": "2003-06-03T09:29:10Z", "ms": 1054632549958.3323 }, "end": { "local": "2003-06-03T13:17:10+03:00", "utc": "2003-06-03T10:17:10Z", "ms": 1054635429958.3323 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-06-04", "window": { "start": { "local": "2003-06-04T12:29:20+03:00", "utc": "2003-06-04T09:29:20Z", "ms": 1054718959693.2073 }, "end": { "local": "2003-06-04T13:17:20+03:00", "utc": "2003-06-04T10:17:20Z", "ms": 1054721839693.2073 } }, "covered_min": 34, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:17 on Tue 3 Jun to 13:03 on Wed 4 Jun.", "fact": "2003-06-03T09:17:22Z → 2003-06-04T10:02:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 3rd, 12:29–13:17 on the 4th.", "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 3rd and 34 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 708 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Tuesday 3 June.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-06-03", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-03", "confidence": "boundary" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Tuesday 3 June. Caturthī runs from 12:17 on Tue 3 Jun to 13:03 on Wed 4 Jun and covers all of madhyāhna that midday. It also reaches the next midday for 34 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/cairo/festivals/2003/vinayaka-chaturthi?on=2003-06-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-05", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 9, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2003-06-05T13:17:20+03:00", "utc": "2003-06-05T10:17:20Z", "ms": 1054808240456.2992 }, "end": { "local": "2003-06-06T12:58:46+03:00", "utc": "2003-06-06T09:58:46Z", "ms": 1054893526183.7266 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-05T13:17:20+03:00", "utc": "2003-06-05T10:17:20Z", "ms": 1054808240456.2992 }, "end": { "local": "2003-06-06T12:58:46+03:00", "utc": "2003-06-06T09:58:46Z", "ms": 1054893526183.7266 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-06-05", "window": { "start": { "local": "2003-06-05T12:29:30+03:00", "utc": "2003-06-05T09:29:30Z", "ms": 1054805369757.7891 }, "end": { "local": "2003-06-05T13:17:30+03:00", "utc": "2003-06-05T10:17:30Z", "ms": 1054808249757.7891 } }, "covered_min": 0, "window_min": 48, "qualifies": true }, { "local_date": "2003-06-06", "window": { "start": { "local": "2003-06-06T12:29:40+03:00", "utc": "2003-06-06T09:29:40Z", "ms": 1054891780130.815 }, "end": { "local": "2003-06-06T13:17:40+03:00", "utc": "2003-06-06T10:17:40Z", "ms": 1054894660130.815 } }, "covered_min": 29, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 13:17 on Thu 5 Jun to 12:59 on Fri 6 Jun.", "fact": "2003-06-05T10:17:20Z → 2003-06-06T09:58:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 5th, 12:30–13:18 on the 6th.", "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 5th and 29 of 48 on the 6th.", "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 9 s < 300 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Cairo, 2003: Thursday 5 June.", "fact": "confidence: boundary (margin)" } ], "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": "2003-06-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-05", "confidence": "determinate" } ], "quote": "In Cairo, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2003 falls on Thursday 5 June. Ṣaṣṭhī runs from 13:17 on Thu 5 Jun to 12:59 on Fri 6 Jun and covers 0 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 29 minutes; by the rule the first midday is taken. It is 0 min 09 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-06", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 9, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2003-06-05T13:17:20+03:00", "utc": "2003-06-05T10:17:20Z", "ms": 1054808240456.2992 }, "end": { "local": "2003-06-06T12:58:46+03:00", "utc": "2003-06-06T09:58:46Z", "ms": 1054893526183.7266 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-05T13:17:20+03:00", "utc": "2003-06-05T10:17:20Z", "ms": 1054808240456.2992 }, "end": { "local": "2003-06-06T12:58:46+03:00", "utc": "2003-06-06T09:58:46Z", "ms": 1054893526183.7266 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-06-05", "window": { "start": { "local": "2003-06-05T12:29:30+03:00", "utc": "2003-06-05T09:29:30Z", "ms": 1054805369757.7891 }, "end": { "local": "2003-06-05T13:17:30+03:00", "utc": "2003-06-05T10:17:30Z", "ms": 1054808249757.7891 } }, "covered_min": 0, "window_min": 48, "qualifies": true }, { "local_date": "2003-06-06", "window": { "start": { "local": "2003-06-06T12:29:40+03:00", "utc": "2003-06-06T09:29:40Z", "ms": 1054891780130.815 }, "end": { "local": "2003-06-06T13:17:40+03:00", "utc": "2003-06-06T10:17:40Z", "ms": 1054894660130.815 } }, "covered_min": 29, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 13:17 on Thu 5 Jun to 12:59 on Fri 6 Jun.", "fact": "2003-06-05T10:17:20Z → 2003-06-06T09:58:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 5th, 12:30–13:18 on the 6th.", "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 5th and 29 of 48 on the 6th.", "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 9 s < 300 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Cairo, 2003: Friday 6 June.", "fact": "confidence: boundary (margin)" } ], "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": "2003-06-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-06", "confidence": "determinate" } ], "quote": "In Cairo, Araṇya Gaurī Vrata 2003 falls on Friday 6 June. Ṣaṣṭhī runs from 13:17 on Thu 5 Jun to 12:59 on Fri 6 Jun and covers 29 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 0 minutes; by the rule the second midday is taken. It is 0 min 09 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-06-10", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1410, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-06-10T06:16:55+03:00", "utc": "2003-06-10T03:16:55Z", "ms": 1055215014944.445 }, "end": { "local": "2003-06-11T03:26:33+03:00", "utc": "2003-06-11T00:26:33Z", "ms": 1055291192540.7268 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-10T06:16:55+03:00", "utc": "2003-06-10T03:16:55Z", "ms": 1055215014944.445 }, "end": { "local": "2003-06-11T03:26:33+03:00", "utc": "2003-06-11T00:26:33Z", "ms": 1055291192540.7268 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-06-10", "window": { "start": { "local": "2003-06-10T05:53:25+03:00", "utc": "2003-06-10T02:53:25Z", "ms": 1055213605064.9844 }, "end": { "local": "2003-06-10T05:53:25+03:00", "utc": "2003-06-10T02:53:25Z", "ms": 1055213605064.9844 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-06-11", "window": { "start": { "local": "2003-06-11T05:53:24+03:00", "utc": "2003-06-11T02:53:24Z", "ms": 1055300003811.9916 }, "end": { "local": "2003-06-11T05:53:24+03:00", "utc": "2003-06-11T02:53:24Z", "ms": 1055300003811.9916 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:17 on Tue 10 Jun to 03:27 on Wed 11 Jun.", "fact": "2003-06-10T03:16:55Z → 2003-06-11T00:26:33Z" }, { "step": "kaala", "text": "Sunrise is at 05:53 on the 10th and 05:53 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is not on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1410 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Cairo, 2003: Tuesday 10 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": "2003-06-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-10", "confidence": "determinate" } ], "quote": "In Cairo, Nirjalā Ekādaśī 2003 falls on Tuesday 10 June. Ekādaśī runs from 06:17 on Tue 10 Jun to 03:27 on Wed 11 Jun, and is current at sunrise on neither day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-06-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32643, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2003-06-11T03:26:33+03:00", "utc": "2003-06-11T00:26:33Z", "ms": 1055291192540.7268 }, "end": { "local": "2003-06-12T00:17:51+03:00", "utc": "2003-06-11T21:17:51Z", "ms": 1055366270916.0337 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-11T03:26:33+03:00", "utc": "2003-06-11T00:26:33Z", "ms": 1055291192540.7268 }, "end": { "local": "2003-06-12T00:17:51+03:00", "utc": "2003-06-11T21:17:51Z", "ms": 1055366270916.0337 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-06-11", "window": { "start": { "local": "2003-06-11T12:30:36+03:00", "utc": "2003-06-11T09:30:36Z", "ms": 1055323835897.2867 }, "end": { "local": "2003-06-11T13:18:36+03:00", "utc": "2003-06-11T10:18:36Z", "ms": 1055326715897.2867 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-06-12", "window": { "start": { "local": "2003-06-12T12:30:48+03:00", "utc": "2003-06-12T09:30:48Z", "ms": 1055410247694.8406 }, "end": { "local": "2003-06-12T13:18:48+03:00", "utc": "2003-06-12T10:18:48Z", "ms": 1055413127694.8406 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:27 on Wed 11 Jun to 00:18 on Thu 12 Jun.", "fact": "2003-06-11T00:26:33Z → 2003-06-11T21:17:51Z" }, { "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": "Dvādaśī 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 32643 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Cairo, 2003: Wednesday 11 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": "2003-06-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-11", "confidence": "determinate" } ], "quote": "In Cairo, Śrī Rāma Dvādaśī 2003 falls on Wednesday 11 June. Dvādaśī runs from 03:27 on Wed 11 Jun to 00:18 on Thu 12 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-06-12", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1081, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-06-12T00:17:51+03:00", "utc": "2003-06-11T21:17:51Z", "ms": 1055366270916.0337 }, "end": { "local": "2003-06-12T20:57:48+03:00", "utc": "2003-06-12T17:57:48Z", "ms": 1055440668140.2217 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-12T00:17:51+03:00", "utc": "2003-06-11T21:17:51Z", "ms": 1055366270916.0337 }, "end": { "local": "2003-06-12T20:57:48+03:00", "utc": "2003-06-12T17:57:48Z", "ms": 1055440668140.2217 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-06-11", "window": { "start": { "local": "2003-06-11T19:55:48+03:00", "utc": "2003-06-11T16:55:48Z", "ms": 1055350547982.5819 }, "end": { "local": "2003-06-11T21:15:29+03:00", "utc": "2003-06-11T18:15:29Z", "ms": 1055355328772.0604 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "2003-06-12", "window": { "start": { "local": "2003-06-12T19:56:11+03:00", "utc": "2003-06-12T16:56:11Z", "ms": 1055436971486.0104 }, "end": { "local": "2003-06-12T21:15:49+03:00", "utc": "2003-06-12T18:15:49Z", "ms": 1055441749331.8326 } }, "covered_min": 62, "window_min": 80, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:18 on Thu 12 Jun to 20:58 on Thu 12 Jun.", "fact": "2003-06-11T21:17:51Z → 2003-06-12T17:57:48Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:56–21:15 on the 11th, 19:56–21:16 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 80 minutes on the 11th and 62 of 80 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1081 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Thursday 12 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": "2003-06-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-12", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Thursday 12 June. Trayodaśī runs from 00:18 on Thu 12 Jun to 20:58 on Thu 12 Jun and covers 62 of 80 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-06-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8536, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-06-13T17:34:18+03:00", "utc": "2003-06-13T14:34:18Z", "ms": 1055514857827.6306 }, "end": { "local": "2003-06-14T14:15:55+03:00", "utc": "2003-06-14T11:15:55Z", "ms": 1055589355167.9209 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-13T17:34:18+03:00", "utc": "2003-06-13T14:34:18Z", "ms": 1055514857827.6306 }, "end": { "local": "2003-06-14T14:15:55+03:00", "utc": "2003-06-14T11:15:55Z", "ms": 1055589355167.9209 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-06-13", "window": { "start": { "local": "2003-06-13T19:56:34+03:00", "utc": "2003-06-13T16:56:34Z", "ms": 1055523394001.0997 }, "end": { "local": "2003-06-13T21:16:09+03:00", "utc": "2003-06-13T18:16:09Z", "ms": 1055528169211.5247 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "2003-06-14", "window": { "start": { "local": "2003-06-14T19:56:56+03:00", "utc": "2003-06-14T16:56:56Z", "ms": 1055609815504.6847 }, "end": { "local": "2003-06-14T21:16:28+03:00", "utc": "2003-06-14T18:16:28Z", "ms": 1055614588389.568 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:34 on Fri 13 Jun to 14:16 on Sat 14 Jun.", "fact": "2003-06-13T14:34:18Z → 2003-06-14T11:15:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:57–21:16 on the 13th, 19:57–21:16 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 80 of 80 minutes on the 13th and 0 of 80 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: purvaviddha → only-day · margin 8536 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Cairo, 2003: Friday 13 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": "2003-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-13", "confidence": "determinate" } ], "quote": "In Cairo, Vaṭa Sāvitrī Vrata 2003 falls on Friday 13 June. Pūrṇimā runs from 17:34 on Fri 13 Jun to 14:16 on Sat 14 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-06-17", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20523, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-06-17T06:21:32+03:00", "utc": "2003-06-17T03:21:32Z", "ms": 1055820091545.3489 }, "end": { "local": "2003-06-18T04:51:56+03:00", "utc": "2003-06-18T01:51:56Z", "ms": 1055901116314.2153 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-17T06:21:32+03:00", "utc": "2003-06-17T03:21:32Z", "ms": 1055820091545.3489 }, "end": { "local": "2003-06-18T04:51:56+03:00", "utc": "2003-06-18T01:51:56Z", "ms": 1055901116314.2153 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-06-16", "window": { "start": { "local": "2003-06-16T22:21:18+03:00", "utc": "2003-06-16T19:21:18Z", "ms": 1055791278149.4565 }, "end": { "local": "2003-06-16T22:21:18+03:00", "utc": "2003-06-16T19:21:18Z", "ms": 1055791278149.4565 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-06-17", "window": { "start": { "local": "2003-06-17T23:09:53+03:00", "utc": "2003-06-17T20:09:53Z", "ms": 1055880593049.0713 }, "end": { "local": "2003-06-17T23:09:53+03:00", "utc": "2003-06-17T20:09:53Z", "ms": 1055880593049.0713 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:22 on Tue 17 Jun to 04:52 on Wed 18 Jun.", "fact": "2003-06-17T03:21:32Z → 2003-06-18T01:51:56Z" }, { "step": "kaala", "text": "Moonrise is at 22:21 on the 16th and 23:10 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 16th and is on the 17th.", "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 20523 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Tuesday 17 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": "2003-06-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-17", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Tuesday 17 June. Caturthī runs from 06:22 on Tue 17 Jun to 04:52 on Wed 18 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-06-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-06-25", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18963, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-06-24T11:11:08+03:00", "utc": "2003-06-24T08:11:08Z", "ms": 1056442268041.5967 }, "end": { "local": "2003-06-25T13:46:05+03:00", "utc": "2003-06-25T10:46:05Z", "ms": 1056537964533.6123 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-24T11:11:08+03:00", "utc": "2003-06-24T08:11:08Z", "ms": 1056442268041.5967 }, "end": { "local": "2003-06-25T13:46:05+03:00", "utc": "2003-06-25T10:46:05Z", "ms": 1056537964533.6123 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-06-24", "window": { "start": { "local": "2003-06-24T05:55:05+03:00", "utc": "2003-06-24T02:55:05Z", "ms": 1056423305315.4996 }, "end": { "local": "2003-06-24T05:55:05+03:00", "utc": "2003-06-24T02:55:05Z", "ms": 1056423305315.4996 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-06-25", "window": { "start": { "local": "2003-06-25T05:55:22+03:00", "utc": "2003-06-25T02:55:22Z", "ms": 1056509721592.4875 }, "end": { "local": "2003-06-25T05:55:22+03:00", "utc": "2003-06-25T02:55:22Z", "ms": 1056509721592.4875 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:11 on Tue 24 Jun to 13:46 on Wed 25 Jun.", "fact": "2003-06-24T08:11:08Z → 2003-06-25T10:46:05Z" }, { "step": "kaala", "text": "Sunrise is at 05:55 on the 24th and 05:55 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 24th and is on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18963 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Cairo, 2003: Wednesday 25 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": "2003-06-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-25", "confidence": "determinate" } ], "quote": "In Cairo, Yoginī Ekādaśī 2003 falls on Wednesday 25 June. Ekādaśī runs from 11:11 on Tue 24 Jun to 13:46 on Wed 25 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-06-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-06-26", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5492, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-06-26T16:15:21+03:00", "utc": "2003-06-26T13:15:21Z", "ms": 1056633321250.486 }, "end": { "local": "2003-06-27T18:28:20+03:00", "utc": "2003-06-27T15:28:20Z", "ms": 1056727699816.9 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-26T16:15:21+03:00", "utc": "2003-06-26T13:15:21Z", "ms": 1056633321250.486 }, "end": { "local": "2003-06-27T18:28:20+03:00", "utc": "2003-06-27T15:28:20Z", "ms": 1056727699816.9 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-06-26", "window": { "start": { "local": "2003-06-26T19:59:46+03:00", "utc": "2003-06-26T16:59:46Z", "ms": 1056646786024.7004 }, "end": { "local": "2003-06-26T21:19:16+03:00", "utc": "2003-06-26T18:19:16Z", "ms": 1056651555540.7147 } }, "covered_min": 79, "window_min": 79, "qualifies": true }, { "local_date": "2003-06-27", "window": { "start": { "local": "2003-06-27T19:59:52+03:00", "utc": "2003-06-27T16:59:52Z", "ms": 1056733192221.1057 }, "end": { "local": "2003-06-27T21:19:24+03:00", "utc": "2003-06-27T18:19:24Z", "ms": 1056737963506.2433 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:15 on Thu 26 Jun to 18:28 on Fri 27 Jun.", "fact": "2003-06-26T13:15:21Z → 2003-06-27T15:28:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:00–21:19 on the 26th, 20:00–21:19 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 79 of 79 minutes on the 26th and 0 of 80 on the 27th.", "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 5492 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Thursday 26 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": "2003-06-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-26", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Thursday 26 June. Trayodaśī runs from 16:15 on Thu 26 Jun to 18:28 on Fri 27 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-06-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-06-27", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-06-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15406, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-06-27T18:28:20+03:00", "utc": "2003-06-27T15:28:20Z", "ms": 1056727699816.9 }, "end": { "local": "2003-06-28T20:17:31+03:00", "utc": "2003-06-28T17:17:31Z", "ms": 1056820651306.4507 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-27T18:28:20+03:00", "utc": "2003-06-27T15:28:20Z", "ms": 1056727699816.9 }, "end": { "local": "2003-06-28T20:17:31+03:00", "utc": "2003-06-28T17:17:31Z", "ms": 1056820651306.4507 } }, "kaala": "nishita", "days": [ { "local_date": "2003-06-27", "window": { "start": { "local": "2003-06-28T00:34:05+03:00", "utc": "2003-06-27T21:34:05Z", "ms": 1056749644540.3717 }, "end": { "local": "2003-06-28T01:22:05+03:00", "utc": "2003-06-27T22:22:05Z", "ms": 1056752524540.3717 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-06-28", "window": { "start": { "local": "2003-06-29T00:34:17+03:00", "utc": "2003-06-28T21:34:17Z", "ms": 1056836057202.5186 }, "end": { "local": "2003-06-29T01:22:17+03:00", "utc": "2003-06-28T22:22:17Z", "ms": 1056838937202.5186 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:28 on Fri 27 Jun to 20:18 on Sat 28 Jun.", "fact": "2003-06-27T15:28:20Z → 2003-06-28T17:17:31Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:34–01:22 on the 27th, 00:34–01:22 on the 28th.", "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 27th and 0 of 48 on the 28th.", "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 15406 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Friday 27 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": "2003-06-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-06-27", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Friday 27 June. Caturdaśī runs from 18:28 on Fri 27 Jun to 20:18 on Sat 28 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-06-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32866, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2003-06-30T22:30:17+03:00", "utc": "2003-06-30T19:30:17Z", "ms": 1057001416692.9391 }, "end": { "local": "2003-07-01T22:52:44+03:00", "utc": "2003-07-01T19:52:44Z", "ms": 1057089163797.9291 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-06-30T22:30:17+03:00", "utc": "2003-06-30T19:30:17Z", "ms": 1057001416692.9391 }, "end": { "local": "2003-07-01T22:52:44+03:00", "utc": "2003-07-01T19:52:44Z", "ms": 1057089163797.9291 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-06-30", "window": { "start": { "local": "2003-06-30T12:34:31+03:00", "utc": "2003-06-30T09:34:31Z", "ms": 1056965670732.81 }, "end": { "local": "2003-06-30T13:22:31+03:00", "utc": "2003-06-30T10:22:31Z", "ms": 1056968550732.81 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-07-01", "window": { "start": { "local": "2003-07-01T12:34:42+03:00", "utc": "2003-07-01T09:34:42Z", "ms": 1057052082281.2031 }, "end": { "local": "2003-07-01T13:22:42+03:00", "utc": "2003-07-01T10:22:42Z", "ms": 1057054962281.2031 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 22:30 on Mon 30 Jun to 22:53 on Tue 1 Jul.", "fact": "2003-06-30T19:30:17Z → 2003-07-01T19:52:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 30th, 12:35–13:23 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32866 s" }, { "step": "ruling", "text": "Rathayātrā, Cairo, 2003: Tuesday 1 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": "2003-07-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-01", "confidence": "determinate" } ], "quote": "In Cairo, Rathayātrā 2003 falls on Tuesday 1 July. Dvitīyā runs from 22:30 on Mon 30 Jun to 22:53 on Tue 1 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-07-03", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32019, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-07-02T22:47:34+03:00", "utc": "2003-07-02T19:47:34Z", "ms": 1057175253595.9972 }, "end": { "local": "2003-07-03T22:16:43+03:00", "utc": "2003-07-03T19:16:43Z", "ms": 1057259803448.951 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-02T22:47:34+03:00", "utc": "2003-07-02T19:47:34Z", "ms": 1057175253595.9972 }, "end": { "local": "2003-07-03T22:16:43+03:00", "utc": "2003-07-03T19:16:43Z", "ms": 1057259803448.951 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-07-02", "window": { "start": { "local": "2003-07-02T12:34:54+03:00", "utc": "2003-07-02T09:34:54Z", "ms": 1057138493573.0435 }, "end": { "local": "2003-07-02T13:22:54+03:00", "utc": "2003-07-02T10:22:54Z", "ms": 1057141373573.0435 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-07-03", "window": { "start": { "local": "2003-07-03T12:35:05+03:00", "utc": "2003-07-03T09:35:05Z", "ms": 1057224904583.0109 }, "end": { "local": "2003-07-03T13:23:05+03:00", "utc": "2003-07-03T10:23:05Z", "ms": 1057227784583.0109 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:48 on Wed 2 Jul to 22:17 on Thu 3 Jul.", "fact": "2003-07-02T19:47:34Z → 2003-07-03T19:16:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 2nd, 12:35–13:23 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "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 32019 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Thursday 3 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": "2003-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-03", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Thursday 3 July. Caturthī runs from 22:48 on Wed 2 Jul to 22:17 on Thu 3 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-07-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28733, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2003-07-03T22:16:43+03:00", "utc": "2003-07-03T19:16:43Z", "ms": 1057259803448.951 }, "end": { "local": "2003-07-04T21:22:09+03:00", "utc": "2003-07-04T18:22:09Z", "ms": 1057342928764.9152 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-03T22:16:43+03:00", "utc": "2003-07-03T19:16:43Z", "ms": 1057259803448.951 }, "end": { "local": "2003-07-04T21:22:09+03:00", "utc": "2003-07-04T18:22:09Z", "ms": 1057342928764.9152 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-07-03", "window": { "start": { "local": "2003-07-03T12:35:05+03:00", "utc": "2003-07-03T09:35:05Z", "ms": 1057224904583.0109 }, "end": { "local": "2003-07-03T13:23:05+03:00", "utc": "2003-07-03T10:23:05Z", "ms": 1057227784583.0109 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-07-04", "window": { "start": { "local": "2003-07-04T12:35:15+03:00", "utc": "2003-07-04T09:35:15Z", "ms": 1057311315286.8125 }, "end": { "local": "2003-07-04T13:23:15+03:00", "utc": "2003-07-04T10:23:15Z", "ms": 1057314195286.8125 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:17 on Thu 3 Jul to 21:22 on Fri 4 Jul.", "fact": "2003-07-03T19:16:43Z → 2003-07-04T18:22:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 3rd, 12:35–13:23 on the 4th.", "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 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28733 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Cairo, 2003: Friday 4 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": "2003-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-04", "confidence": "determinate" } ], "quote": "In Cairo, Skanda Pañcamī 2003 falls on Friday 4 July. Pañcamī runs from 22:17 on Thu 3 Jul to 21:22 on Fri 4 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18280, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2003-07-05T20:05:30+03:00", "utc": "2003-07-05T17:05:30Z", "ms": 1057424730220.2523 }, "end": { "local": "2003-07-06T18:28:15+03:00", "utc": "2003-07-06T15:28:15Z", "ms": 1057505295208.8137 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-05T20:05:30+03:00", "utc": "2003-07-05T17:05:30Z", "ms": 1057424730220.2523 }, "end": { "local": "2003-07-06T18:28:15+03:00", "utc": "2003-07-06T15:28:15Z", "ms": 1057505295208.8137 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-07-05", "window": { "start": { "local": "2003-07-05T12:35:26+03:00", "utc": "2003-07-05T09:35:26Z", "ms": 1057397725660.8972 }, "end": { "local": "2003-07-05T13:23:26+03:00", "utc": "2003-07-05T10:23:26Z", "ms": 1057400605660.8972 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-07-06", "window": { "start": { "local": "2003-07-06T12:35:36+03:00", "utc": "2003-07-06T09:35:36Z", "ms": 1057484135683.1667 }, "end": { "local": "2003-07-06T13:23:36+03:00", "utc": "2003-07-06T10:23:36Z", "ms": 1057487015683.1667 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:06 on Sat 5 Jul to 18:28 on Sun 6 Jul.", "fact": "2003-07-05T17:05:30Z → 2003-07-06T15:28:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 5th, 12:36–13:24 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18280 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Cairo, 2003: Sunday 6 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": "2003-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-06", "confidence": "determinate" } ], "quote": "In Cairo, Vivasvat Saptamī 2003 falls on Sunday 6 July. Saptamī runs from 20:06 on Sat 5 Jul to 18:28 on Sun 6 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-07-10", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11262, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-07-09T11:49:18+03:00", "utc": "2003-07-09T08:49:18Z", "ms": 1057740557748.3221 }, "end": { "local": "2003-07-10T09:09:01+03:00", "utc": "2003-07-10T06:09:01Z", "ms": 1057817340676.3679 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-09T11:49:18+03:00", "utc": "2003-07-09T08:49:18Z", "ms": 1057740557748.3221 }, "end": { "local": "2003-07-10T09:09:01+03:00", "utc": "2003-07-10T06:09:01Z", "ms": 1057817340676.3679 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-07-09", "window": { "start": { "local": "2003-07-09T06:00:49+03:00", "utc": "2003-07-09T03:00:49Z", "ms": 1057719649473.2935 }, "end": { "local": "2003-07-09T06:00:49+03:00", "utc": "2003-07-09T03:00:49Z", "ms": 1057719649473.2935 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-07-10", "window": { "start": { "local": "2003-07-10T06:01:19+03:00", "utc": "2003-07-10T03:01:19Z", "ms": 1057806078690.3585 }, "end": { "local": "2003-07-10T06:01:19+03:00", "utc": "2003-07-10T03:01:19Z", "ms": 1057806078690.3585 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:49 on Wed 9 Jul to 09:09 on Thu 10 Jul.", "fact": "2003-07-09T08:49:18Z → 2003-07-10T06:09:01Z" }, { "step": "kaala", "text": "Sunrise is at 06:01 on the 9th and 06:01 on the 10th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 9th and is on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11262 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Cairo, 2003: Thursday 10 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": "2003-07-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-10", "confidence": "determinate" } ], "quote": "In Cairo, Hariśayanī Ekādaśī 2003 falls on Thursday 10 July. Ekādaśī runs from 11:49 on Wed 9 Jul to 09:09 on Thu 10 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-07-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-07-11", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22441, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-07-11T06:21:46+03:00", "utc": "2003-07-11T03:21:46Z", "ms": 1057893705746.9159 }, "end": { "local": "2003-07-12T03:33:20+03:00", "utc": "2003-07-12T00:33:20Z", "ms": 1057969999779.6691 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-11T06:21:46+03:00", "utc": "2003-07-11T03:21:46Z", "ms": 1057893705746.9159 }, "end": { "local": "2003-07-12T03:33:20+03:00", "utc": "2003-07-12T00:33:20Z", "ms": 1057969999779.6691 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-07-10", "window": { "start": { "local": "2003-07-10T19:59:05+03:00", "utc": "2003-07-10T16:59:05Z", "ms": 1057856345050.3527 }, "end": { "local": "2003-07-10T21:19:27+03:00", "utc": "2003-07-10T18:19:27Z", "ms": 1057861166844.5967 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "2003-07-11", "window": { "start": { "local": "2003-07-11T19:58:51+03:00", "utc": "2003-07-11T16:58:51Z", "ms": 1057942731215.7822 }, "end": { "local": "2003-07-11T21:19:19+03:00", "utc": "2003-07-11T18:19:19Z", "ms": 1057947558906.3672 } }, "covered_min": 80, "window_min": 80, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:22 on Fri 11 Jul to 03:33 on Sat 12 Jul.", "fact": "2003-07-11T03:21:46Z → 2003-07-12T00:33:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:59–21:19 on the 10th, 19:59–21:19 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 80 minutes on the 10th and 80 of 80 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 22441 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Friday 11 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": "2003-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-11", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Friday 11 July. Trayodaśī runs from 06:22 on Fri 11 Jul to 03:33 on Sat 12 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-07-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18733, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-07-13T00:50:37+03:00", "utc": "2003-07-12T21:50:37Z", "ms": 1058046636676.2827 }, "end": { "local": "2003-07-13T22:21:24+03:00", "utc": "2003-07-13T19:21:24Z", "ms": 1058124083604.2949 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-13T00:50:37+03:00", "utc": "2003-07-12T21:50:37Z", "ms": 1058046636676.2827 }, "end": { "local": "2003-07-13T22:21:24+03:00", "utc": "2003-07-13T19:21:24Z", "ms": 1058124083604.2949 } }, "kaala": "udaya-3", "days": [ { "local_date": "2003-07-13", "window": { "start": { "local": "2003-07-13T06:02:50+03:00", "utc": "2003-07-13T03:02:50Z", "ms": 1058065369826.946 }, "end": { "local": "2003-07-13T08:49:56+03:00", "utc": "2003-07-13T05:49:56Z", "ms": 1058075395691.2612 } }, "covered_min": 167, "window_min": 167, "qualifies": true }, { "local_date": "2003-07-14", "window": { "start": { "local": "2003-07-14T06:03:21+03:00", "utc": "2003-07-14T03:03:21Z", "ms": 1058151801276.202 }, "end": { "local": "2003-07-14T08:50:17+03:00", "utc": "2003-07-14T05:50:17Z", "ms": 1058161817206.6604 } }, "covered_min": 0, "window_min": 167, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:51 on Sun 13 Jul to 22:21 on Sun 13 Jul.", "fact": "2003-07-12T21:50:37Z → 2003-07-13T19:21:24Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:03–08:50 on the 13th, 06:03–08:50 on the 14th.", "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 167 of 167 minutes on the 13th and 0 of 167 on the 14th.", "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 18733 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Cairo, 2003: Sunday 13 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": "2003-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-13", "confidence": "determinate" } ], "quote": "In Cairo, Vyāsa Pūjā 2003 falls on Sunday 13 July. Pūrṇimā runs from 00:51 on Sun 13 Jul to 22:21 on Sun 13 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32209, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-07-13T00:50:37+03:00", "utc": "2003-07-12T21:50:37Z", "ms": 1058046636676.2827 }, "end": { "local": "2003-07-13T22:21:24+03:00", "utc": "2003-07-13T19:21:24Z", "ms": 1058124083604.2949 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-13T00:50:37+03:00", "utc": "2003-07-12T21:50:37Z", "ms": 1058046636676.2827 }, "end": { "local": "2003-07-13T22:21:24+03:00", "utc": "2003-07-13T19:21:24Z", "ms": 1058124083604.2949 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-07-12", "window": { "start": { "local": "2003-07-12T12:36:27+03:00", "utc": "2003-07-12T09:36:27Z", "ms": 1058002587404.1765 }, "end": { "local": "2003-07-12T13:24:27+03:00", "utc": "2003-07-12T10:24:27Z", "ms": 1058005467404.1765 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-07-13", "window": { "start": { "local": "2003-07-13T12:36:34+03:00", "utc": "2003-07-13T09:36:34Z", "ms": 1058088994487.7341 }, "end": { "local": "2003-07-13T13:24:34+03:00", "utc": "2003-07-13T10:24:34Z", "ms": 1058091874487.7341 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:51 on Sun 13 Jul to 22:21 on Sun 13 Jul.", "fact": "2003-07-12T21:50:37Z → 2003-07-13T19:21:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 12th, 12:37–13:25 on the 13th.", "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 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 32209 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Cairo, 2003: Sunday 13 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": "2003-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-13", "confidence": "determinate" } ], "quote": "In Cairo, Guru Pūrṇimā 2003 falls on Sunday 13 July. Pūrṇimā runs from 00:51 on Sun 13 Jul to 22:21 on Sun 13 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8584, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-07-13T00:50:37+03:00", "utc": "2003-07-12T21:50:37Z", "ms": 1058046636676.2827 }, "end": { "local": "2003-07-13T22:21:24+03:00", "utc": "2003-07-13T19:21:24Z", "ms": 1058124083604.2949 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-13T00:50:37+03:00", "utc": "2003-07-12T21:50:37Z", "ms": 1058046636676.2827 }, "end": { "local": "2003-07-13T22:21:24+03:00", "utc": "2003-07-13T19:21:24Z", "ms": 1058124083604.2949 } }, "kaala": "sayahna", "days": [ { "local_date": "2003-07-12", "window": { "start": { "local": "2003-07-12T17:11:21+03:00", "utc": "2003-07-12T14:11:21Z", "ms": 1058019080509.5806 }, "end": { "local": "2003-07-12T19:58:36+03:00", "utc": "2003-07-12T16:58:36Z", "ms": 1058029115913.1833 } }, "covered_min": 0, "window_min": 167, "qualifies": false }, { "local_date": "2003-07-13", "window": { "start": { "local": "2003-07-13T17:11:13+03:00", "utc": "2003-07-13T14:11:13Z", "ms": 1058105473284.2069 }, "end": { "local": "2003-07-13T19:58:19+03:00", "utc": "2003-07-13T16:58:19Z", "ms": 1058115499148.5221 } }, "covered_min": 167, "window_min": 167, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:51 on Sun 13 Jul to 22:21 on Sun 13 Jul.", "fact": "2003-07-12T21:50:37Z → 2003-07-13T19:21:24Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:11–19:59 on the 12th, 17:11–19:58 on the 13th.", "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 167 minutes on the 12th and 167 of 167 on the 13th.", "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 8584 s" }, { "step": "ruling", "text": "Kokilā Vrata, Cairo, 2003: Sunday 13 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": "2003-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-13", "confidence": "determinate" } ], "quote": "In Cairo, Kokilā Vrata 2003 falls on Sunday 13 July. Pūrṇimā runs from 00:51 on Sun 13 Jul to 22:21 on Sun 13 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3744, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-07-13T00:50:37+03:00", "utc": "2003-07-12T21:50:37Z", "ms": 1058046636676.2827 }, "end": { "local": "2003-07-13T22:21:24+03:00", "utc": "2003-07-13T19:21:24Z", "ms": 1058124083604.2949 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2003-07-13T00:50:37+03:00", "utc": "2003-07-12T21:50:37Z", "ms": 1058046636676.2827 }, "end": { "local": "2003-07-13T22:21:24+03:00", "utc": "2003-07-13T19:21:24Z", "ms": 1058124083604.2949 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-07-12", "window": { "start": { "local": "2003-07-12T19:58:36+03:00", "utc": "2003-07-12T16:58:36Z", "ms": 1058029115913.1833 }, "end": { "local": "2003-07-12T21:19:10+03:00", "utc": "2003-07-12T18:19:10Z", "ms": 1058033949768.3517 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "2003-07-13", "window": { "start": { "local": "2003-07-13T19:58:19+03:00", "utc": "2003-07-13T16:58:19Z", "ms": 1058115499148.5221 }, "end": { "local": "2003-07-13T21:18:59+03:00", "utc": "2003-07-13T18:18:59Z", "ms": 1058120339432.2128 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:51 on Sun 13 Jul to 22:21 on Sun 13 Jul.", "fact": "2003-07-12T21:50:37Z → 2003-07-13T19:21:24Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:59–21:19 on the 12th, 19:58–21:19 on the 13th.", "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 81 minutes on the 12th and 81 of 81 on the 13th.", "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 3744 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Cairo, 2003: Sunday 13 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": "2003-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-13", "confidence": "determinate" } ], "quote": "In Cairo, Śiva Śayanotsava 2003 falls on Sunday 13 July. Pūrṇimā runs from 00:51 on Sun 13 Jul to 22:21 on Sun 13 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2696, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2003-07-14T20:13:58+03:00", "utc": "2003-07-14T17:13:58Z", "ms": 1058202838273.9181 }, "end": { "local": "2003-07-15T18:36:36+03:00", "utc": "2003-07-15T15:36:36Z", "ms": 1058283395730.6937 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-07-14T20:13:58+03:00", "utc": "2003-07-14T17:13:58Z", "ms": 1058202838273.9181 }, "end": { "local": "2003-07-15T18:36:36+03:00", "utc": "2003-07-15T15:36:36Z", "ms": 1058283395730.6937 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-07-14", "window": { "start": { "local": "2003-07-14T20:58:55+03:00", "utc": "2003-07-14T17:58:55Z", "ms": 1058205534724.683 }, "end": { "local": "2003-07-14T20:58:55+03:00", "utc": "2003-07-14T17:58:55Z", "ms": 1058205534724.683 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-07-15", "window": { "start": { "local": "2003-07-15T21:43:38+03:00", "utc": "2003-07-15T18:43:38Z", "ms": 1058294618186.3472 }, "end": { "local": "2003-07-15T21:43:38+03:00", "utc": "2003-07-15T18:43:38Z", "ms": 1058294618186.3472 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 20:14 on Mon 14 Jul to 18:37 on Tue 15 Jul.", "fact": "2003-07-14T17:13:58Z → 2003-07-15T15:36:36Z" }, { "step": "kaala", "text": "Moonrise is at 20:59 on the 14th and 21:44 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 14th and is not on the 15th.", "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 2696 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Cairo, 2003: Monday 14 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": "2003-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-14", "confidence": "determinate" } ], "quote": "In Cairo, Aśūnya Śayana Vrata (Āṣāḍha) 2003 falls on Monday 14 July. Dvitīyā runs from 20:14 on Mon 14 Jul to 18:37 on Tue 15 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-07-16", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17090, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-07-16T17:36:43+03:00", "utc": "2003-07-16T14:36:43Z", "ms": 1058366202528.3066 }, "end": { "local": "2003-07-17T17:19:57+03:00", "utc": "2003-07-17T14:19:57Z", "ms": 1058451597356.5886 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-07-16T17:36:43+03:00", "utc": "2003-07-16T14:36:43Z", "ms": 1058366202528.3066 }, "end": { "local": "2003-07-17T17:19:57+03:00", "utc": "2003-07-17T14:19:57Z", "ms": 1058451597356.5886 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-07-16", "window": { "start": { "local": "2003-07-16T22:21:32+03:00", "utc": "2003-07-16T19:21:32Z", "ms": 1058383292422.6282 }, "end": { "local": "2003-07-16T22:21:32+03:00", "utc": "2003-07-16T19:21:32Z", "ms": 1058383292422.6282 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-07-17", "window": { "start": { "local": "2003-07-17T22:54:28+03:00", "utc": "2003-07-17T19:54:28Z", "ms": 1058471667807.015 }, "end": { "local": "2003-07-17T22:54:28+03:00", "utc": "2003-07-17T19:54:28Z", "ms": 1058471667807.015 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:37 on Wed 16 Jul to 17:20 on Thu 17 Jul.", "fact": "2003-07-16T14:36:43Z → 2003-07-17T14:19:57Z" }, { "step": "kaala", "text": "Moonrise is at 22:22 on the 16th and 22:54 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 16th and is not on the 17th.", "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 17090 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Wednesday 16 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": "2003-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-16", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Wednesday 16 July. Caturthī runs from 17:37 on Wed 16 Jul to 17:20 on Thu 17 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-07-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-07-25", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1064, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-07-24T04:14:50+03:00", "utc": "2003-07-24T01:14:50Z", "ms": 1059009289852.0166 }, "end": { "local": "2003-07-25T06:27:18+03:00", "utc": "2003-07-25T03:27:18Z", "ms": 1059103637613.2994 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-07-24T04:14:50+03:00", "utc": "2003-07-24T01:14:50Z", "ms": 1059009289852.0166 }, "end": { "local": "2003-07-25T06:27:18+03:00", "utc": "2003-07-25T03:27:18Z", "ms": 1059103637613.2994 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-07-24", "window": { "start": { "local": "2003-07-24T06:08:59+03:00", "utc": "2003-07-24T03:08:59Z", "ms": 1059016138573.1053 }, "end": { "local": "2003-07-24T06:08:59+03:00", "utc": "2003-07-24T03:08:59Z", "ms": 1059016138573.1053 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-07-25", "window": { "start": { "local": "2003-07-25T06:09:34+03:00", "utc": "2003-07-25T03:09:34Z", "ms": 1059102574000.2919 }, "end": { "local": "2003-07-25T06:09:34+03:00", "utc": "2003-07-25T03:09:34Z", "ms": 1059102574000.2919 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:15 on Thu 24 Jul to 06:27 on Fri 25 Jul.", "fact": "2003-07-24T01:14:50Z → 2003-07-25T03:27:18Z" }, { "step": "kaala", "text": "Sunrise is at 06:09 on the 24th and 06:10 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 24th and is on the 25th.", "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 1064 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Cairo, 2003: Friday 25 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": "2003-07-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-25", "confidence": "determinate" } ], "quote": "In Cairo, Kāmikā Ekādaśī 2003 falls on Friday 25 July. Ekādaśī runs from 04:15 on Thu 24 Jul to 06:27 on Fri 25 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-07-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-07-26", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37808, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-07-26T08:11:49+03:00", "utc": "2003-07-26T05:11:49Z", "ms": 1059196308936.1818 }, "end": { "local": "2003-07-27T09:21:48+03:00", "utc": "2003-07-27T06:21:48Z", "ms": 1059286907828.2571 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-07-26T08:11:49+03:00", "utc": "2003-07-26T05:11:49Z", "ms": 1059196308936.1818 }, "end": { "local": "2003-07-27T09:21:48+03:00", "utc": "2003-07-27T06:21:48Z", "ms": 1059286907828.2571 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-07-26", "window": { "start": { "local": "2003-07-26T19:52:32+03:00", "utc": "2003-07-26T16:52:32Z", "ms": 1059238351718.8977 }, "end": { "local": "2003-07-26T21:14:58+03:00", "utc": "2003-07-26T18:14:58Z", "ms": 1059243297546.9592 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "2003-07-27", "window": { "start": { "local": "2003-07-27T19:51:55+03:00", "utc": "2003-07-27T16:51:55Z", "ms": 1059324715362.7468 }, "end": { "local": "2003-07-27T21:14:31+03:00", "utc": "2003-07-27T18:14:31Z", "ms": 1059329670831.3738 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:12 on Sat 26 Jul to 09:22 on Sun 27 Jul.", "fact": "2003-07-26T05:11:49Z → 2003-07-27T06:21:48Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:53–21:15 on the 26th, 19:52–21:15 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 26th and 0 of 83 on the 27th.", "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 37808 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Saturday 26 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": "2003-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-26", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Saturday 26 July. Trayodaśī runs from 08:12 on Sat 26 Jul to 09:22 on Sun 27 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-07-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-07-27", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28569, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-07-27T09:21:48+03:00", "utc": "2003-07-27T06:21:48Z", "ms": 1059286907828.2571 }, "end": { "local": "2003-07-28T09:54:59+03:00", "utc": "2003-07-28T06:54:59Z", "ms": 1059375299438.0299 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-07-27T09:21:48+03:00", "utc": "2003-07-27T06:21:48Z", "ms": 1059286907828.2571 }, "end": { "local": "2003-07-28T09:54:59+03:00", "utc": "2003-07-28T06:54:59Z", "ms": 1059375299438.0299 } }, "kaala": "nishita", "days": [ { "local_date": "2003-07-26", "window": { "start": { "local": "2003-07-27T00:37:39+03:00", "utc": "2003-07-26T21:37:39Z", "ms": 1059255458574.1285 }, "end": { "local": "2003-07-27T01:25:39+03:00", "utc": "2003-07-26T22:25:39Z", "ms": 1059258338574.1285 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-07-27", "window": { "start": { "local": "2003-07-28T00:37:38+03:00", "utc": "2003-07-27T21:37:38Z", "ms": 1059341858370.0981 }, "end": { "local": "2003-07-28T01:25:38+03:00", "utc": "2003-07-27T22:25:38Z", "ms": 1059344738370.0981 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:22 on Sun 27 Jul to 09:55 on Mon 28 Jul.", "fact": "2003-07-27T06:21:48Z → 2003-07-28T06:54:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:38–01:26 on the 26th, 00:38–01:26 on the 27th.", "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 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28569 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Sunday 27 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": "2003-07-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-27", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Sunday 27 July. Caturdaśī runs from 09:22 on Sun 27 Jul to 09:55 on Mon 28 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-07-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-07-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15533, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2003-07-31T08:18:20+03:00", "utc": "2003-07-31T05:18:20Z", "ms": 1059628700301.1682 }, "end": { "local": "2003-08-01T06:56:52+03:00", "utc": "2003-08-01T03:56:52Z", "ms": 1059710212236.7251 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-07-31T08:18:20+03:00", "utc": "2003-07-31T05:18:20Z", "ms": 1059628700301.1682 }, "end": { "local": "2003-08-01T06:56:52+03:00", "utc": "2003-08-01T03:56:52Z", "ms": 1059710212236.7251 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-07-31", "window": { "start": { "local": "2003-07-31T12:37:13+03:00", "utc": "2003-07-31T09:37:13Z", "ms": 1059644233350.2418 }, "end": { "local": "2003-07-31T13:25:13+03:00", "utc": "2003-07-31T10:25:13Z", "ms": 1059647113350.2418 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-01", "window": { "start": { "local": "2003-08-01T12:37:10+03:00", "utc": "2003-08-01T09:37:10Z", "ms": 1059730630073.6602 }, "end": { "local": "2003-08-01T13:25:10+03:00", "utc": "2003-08-01T10:25:10Z", "ms": 1059733510073.6602 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 08:18 on Thu 31 Jul to 06:57 on Fri 1 Aug.", "fact": "2003-07-31T05:18:20Z → 2003-08-01T03:56:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 31st, 12:37–13:25 on the 1st.", "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 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15533 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Cairo, 2003: Thursday 31 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "madhusrava-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Madhusrava (Gujerat) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-07-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-07-31", "confidence": "determinate" } ], "quote": "In Cairo, Madhusravā Tṛtīyā (Hariyali Teej) 2003 falls on Thursday 31 July. Tṛtīyā runs from 08:18 on Thu 31 Jul to 06:57 on Fri 1 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-08-01", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20418, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-08-01T06:56:52+03:00", "utc": "2003-08-01T03:56:52Z", "ms": 1059710212236.7251 }, "end": { "local": "2003-08-02T05:19:33+03:00", "utc": "2003-08-02T02:19:33Z", "ms": 1059790773346.3052 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-08-01T06:56:52+03:00", "utc": "2003-08-01T03:56:52Z", "ms": 1059710212236.7251 }, "end": { "local": "2003-08-02T05:19:33+03:00", "utc": "2003-08-02T02:19:33Z", "ms": 1059790773346.3052 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-01", "window": { "start": { "local": "2003-08-01T12:37:10+03:00", "utc": "2003-08-01T09:37:10Z", "ms": 1059730630073.6602 }, "end": { "local": "2003-08-01T13:25:10+03:00", "utc": "2003-08-01T10:25:10Z", "ms": 1059733510073.6602 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-02", "window": { "start": { "local": "2003-08-02T12:37:06+03:00", "utc": "2003-08-02T09:37:06Z", "ms": 1059817026181.6786 }, "end": { "local": "2003-08-02T13:25:06+03:00", "utc": "2003-08-02T10:25:06Z", "ms": 1059819906181.6786 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:57 on Fri 1 Aug to 05:20 on Sat 2 Aug.", "fact": "2003-08-01T03:56:52Z → 2003-08-02T02:19:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 1st, 12:37–13:25 on the 2nd.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20418 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Friday 1 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": "2003-08-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-01", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Friday 1 August. Caturthī runs from 06:57 on Fri 1 Aug to 05:20 on Sat 2 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-08-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26253, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2003-08-02T05:19:33+03:00", "utc": "2003-08-02T02:19:33Z", "ms": 1059790773346.3052 }, "end": { "local": "2003-08-03T03:30:44+03:00", "utc": "2003-08-03T00:30:44Z", "ms": 1059870643879.8412 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-08-02T05:19:33+03:00", "utc": "2003-08-02T02:19:33Z", "ms": 1059790773346.3052 }, "end": { "local": "2003-08-03T03:30:44+03:00", "utc": "2003-08-03T00:30:44Z", "ms": 1059870643879.8412 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-02", "window": { "start": { "local": "2003-08-02T12:37:06+03:00", "utc": "2003-08-02T09:37:06Z", "ms": 1059817026181.6786 }, "end": { "local": "2003-08-02T13:25:06+03:00", "utc": "2003-08-02T10:25:06Z", "ms": 1059819906181.6786 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-03", "window": { "start": { "local": "2003-08-03T12:37:02+03:00", "utc": "2003-08-03T09:37:02Z", "ms": 1059903421671.5807 }, "end": { "local": "2003-08-03T13:25:02+03:00", "utc": "2003-08-03T10:25:02Z", "ms": 1059906301671.5807 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 05:20 on Sat 2 Aug to 03:31 on Sun 3 Aug.", "fact": "2003-08-02T02:19:33Z → 2003-08-03T00:30:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 2nd, 12:37–13:25 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26253 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Cairo, 2003: Saturday 2 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": "2003-08-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-02", "confidence": "determinate" } ], "quote": "In Cairo, Nāga Pañcamī 2003 falls on Saturday 2 August. Pañcamī runs from 05:20 on Sat 2 Aug to 03:31 on Sun 3 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-08-08", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30805, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-08-07T17:01:50+03:00", "utc": "2003-08-07T14:01:50Z", "ms": 1060264909505.576 }, "end": { "local": "2003-08-08T14:51:24+03:00", "utc": "2003-08-08T11:51:24Z", "ms": 1060343484353.5753 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-08-07T17:01:50+03:00", "utc": "2003-08-07T14:01:50Z", "ms": 1060264909505.576 }, "end": { "local": "2003-08-08T14:51:24+03:00", "utc": "2003-08-08T11:51:24Z", "ms": 1060343484353.5753 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-08-07", "window": { "start": { "local": "2003-08-07T06:17:24+03:00", "utc": "2003-08-07T03:17:24Z", "ms": 1060226243504.2892 }, "end": { "local": "2003-08-07T06:17:24+03:00", "utc": "2003-08-07T03:17:24Z", "ms": 1060226243504.2892 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-08-08", "window": { "start": { "local": "2003-08-08T06:18:00+03:00", "utc": "2003-08-08T03:18:00Z", "ms": 1060312679533.2407 }, "end": { "local": "2003-08-08T06:18:00+03:00", "utc": "2003-08-08T03:18:00Z", "ms": 1060312679533.2407 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:02 on Thu 7 Aug to 14:51 on Fri 8 Aug.", "fact": "2003-08-07T14:01:50Z → 2003-08-08T11:51:24Z" }, { "step": "kaala", "text": "Sunrise is at 06:17 on the 7th and 06:18 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 30805 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Cairo, 2003: Friday 8 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": "2003-08-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-08", "confidence": "determinate" } ], "quote": "In Cairo, Putradā Ekādaśī 2003 falls on Friday 8 August. Ekādaśī runs from 17:02 on Thu 7 Aug to 14:51 on Fri 8 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-08-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 553, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2003-08-08T14:51:24+03:00", "utc": "2003-08-08T11:51:24Z", "ms": 1060343484353.5753 }, "end": { "local": "2003-08-09T12:45:35+03:00", "utc": "2003-08-09T09:45:35Z", "ms": 1060422334587.3246 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-08-08T14:51:24+03:00", "utc": "2003-08-08T11:51:24Z", "ms": 1060343484353.5753 }, "end": { "local": "2003-08-09T12:45:35+03:00", "utc": "2003-08-09T09:45:35Z", "ms": 1060422334587.3246 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-08", "window": { "start": { "local": "2003-08-08T12:36:30+03:00", "utc": "2003-08-08T09:36:30Z", "ms": 1060335389885.2822 }, "end": { "local": "2003-08-08T13:24:30+03:00", "utc": "2003-08-08T10:24:30Z", "ms": 1060338269885.2822 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-08-09", "window": { "start": { "local": "2003-08-09T12:36:22+03:00", "utc": "2003-08-09T09:36:22Z", "ms": 1060421781712.9275 }, "end": { "local": "2003-08-09T13:24:22+03:00", "utc": "2003-08-09T10:24:22Z", "ms": 1060424661712.9275 } }, "covered_min": 9, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:51 on Fri 8 Aug to 12:46 on Sat 9 Aug.", "fact": "2003-08-08T11:51:24Z → 2003-08-09T09:45:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 8th, 12:36–13:24 on the 9th.", "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 8th and 9 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 553 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Cairo, 2003: Saturday 9 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": "2003-08-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-09", "confidence": "determinate" } ], "quote": "In Cairo, Dāmodara Dvādaśī 2003 falls on Saturday 9 August. Dvādaśī runs from 14:51 on Fri 8 Aug to 12:46 on Sat 9 Aug and covers 9 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-08-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24993, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-08-09T12:45:35+03:00", "utc": "2003-08-09T09:45:35Z", "ms": 1060422334587.3246 }, "end": { "local": "2003-08-10T10:49:04+03:00", "utc": "2003-08-10T07:49:04Z", "ms": 1060501744297.862 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-08-09T12:45:35+03:00", "utc": "2003-08-09T09:45:35Z", "ms": 1060422334587.3246 }, "end": { "local": "2003-08-10T10:49:04+03:00", "utc": "2003-08-10T07:49:04Z", "ms": 1060501744297.862 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-08-09", "window": { "start": { "local": "2003-08-09T19:42:08+03:00", "utc": "2003-08-09T16:42:08Z", "ms": 1060447327954.9076 }, "end": { "local": "2003-08-09T21:07:04+03:00", "utc": "2003-08-09T18:07:04Z", "ms": 1060452424402.2048 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "2003-08-10", "window": { "start": { "local": "2003-08-10T19:41:15+03:00", "utc": "2003-08-10T16:41:15Z", "ms": 1060533674597.7456 }, "end": { "local": "2003-08-10T21:06:23+03:00", "utc": "2003-08-10T18:06:23Z", "ms": 1060538782923.838 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:46 on Sat 9 Aug to 10:49 on Sun 10 Aug.", "fact": "2003-08-09T09:45:35Z → 2003-08-10T07:49:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:42–21:07 on the 9th, 19:41–21:06 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 85 of 85 minutes on the 9th and 0 of 85 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 24993 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Saturday 9 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": "2003-08-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-09", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Saturday 9 August. Trayodaśī runs from 12:46 on Sat 9 Aug to 10:49 on Sun 10 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-08-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-11", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 5271, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-08-11T09:07:45+03:00", "utc": "2003-08-11T06:07:45Z", "ms": 1060582064724.1271 }, "end": { "local": "2003-08-12T07:48:13+03:00", "utc": "2003-08-12T04:48:13Z", "ms": 1060663693231.3308 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2003-08-11T20:24:50+03:00", "utc": "2003-08-11T17:24:50Z", "ms": 1060622689699.7705 }, "end": { "local": "2003-08-12T07:48:13+03:00", "utc": "2003-08-12T04:48:13Z", "ms": 1060663693231.3308 } }, "kaala": "day", "days": [ { "local_date": "2003-08-11", "window": { "start": { "local": "2003-08-11T06:19:47+03:00", "utc": "2003-08-11T03:19:47Z", "ms": 1060571987043.4385 }, "end": { "local": "2003-08-12T06:20:23+03:00", "utc": "2003-08-12T03:20:23Z", "ms": 1060658422668.0851 } }, "covered_min": 596, "window_min": 1441, "qualifies": true }, { "local_date": "2003-08-12", "window": { "start": { "local": "2003-08-12T06:20:23+03:00", "utc": "2003-08-12T03:20:23Z", "ms": 1060658422668.0851 }, "end": { "local": "2003-08-13T06:20:58+03:00", "utc": "2003-08-13T03:20:58Z", "ms": 1060744858180.5254 } }, "covered_min": 88, "window_min": 1441, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:08 on Mon 11 Aug to 07:48 on Tue 12 Aug. Its second half begins at 20:25 on Mon 11 Aug.", "fact": "2003-08-11T06:07:45Z → 2003-08-12T04:48:13Z · second half from 2003-08-11T17:24:50Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:20 on the 11th, and from 06:20 on the 12th.", "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 596 of 1441 minutes on the 11th and 88 of 1441 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 5271 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Cairo, 2003: Monday 11 August.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-08-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-11", "confidence": "boundary" } ], "quote": "In Cairo, Rakṣā Bandhana (Rakhi) 2003 falls on Monday 11 August. The second half of Pūrṇimā runs from 20:25 on Mon 11 Aug to 07:48 on Tue 12 Aug and falls on two days: 596 minutes of it on the 11th, 88 on the 12th; the rule does not say which to take, and the day that holds more of it is ruled: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12499, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-08-11T09:07:45+03:00", "utc": "2003-08-11T06:07:45Z", "ms": 1060582064724.1271 }, "end": { "local": "2003-08-12T07:48:13+03:00", "utc": "2003-08-12T04:48:13Z", "ms": 1060663693231.3308 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2003-08-11T09:07:45+03:00", "utc": "2003-08-11T06:07:45Z", "ms": 1060582064724.1271 }, "end": { "local": "2003-08-12T07:48:13+03:00", "utc": "2003-08-12T04:48:13Z", "ms": 1060663693231.3308 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-11", "window": { "start": { "local": "2003-08-11T12:36:04+03:00", "utc": "2003-08-11T09:36:04Z", "ms": 1060594563617.8845 }, "end": { "local": "2003-08-11T13:24:04+03:00", "utc": "2003-08-11T10:24:04Z", "ms": 1060597443617.8845 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-12", "window": { "start": { "local": "2003-08-12T12:35:54+03:00", "utc": "2003-08-12T09:35:54Z", "ms": 1060680953716.6467 }, "end": { "local": "2003-08-12T13:23:54+03:00", "utc": "2003-08-12T10:23:54Z", "ms": 1060683833716.6467 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:08 on Mon 11 Aug to 07:48 on Tue 12 Aug.", "fact": "2003-08-11T06:07:45Z → 2003-08-12T04:48:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 11th, 12:36–13:24 on the 12th.", "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 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: unstated → only-day · margin 12499 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Cairo, 2003: Monday 11 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": "2003-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-11", "confidence": "determinate" } ], "quote": "In Cairo, Ṛṣi Tarpaṇa 2003 falls on Monday 11 August. Pūrṇimā runs from 09:08 on Mon 11 Aug to 07:48 on Tue 12 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35366, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2003-08-13T06:57:18+03:00", "utc": "2003-08-13T03:57:18Z", "ms": 1060747037848.9006 }, "end": { "local": "2003-08-14T06:41:07+03:00", "utc": "2003-08-14T03:41:07Z", "ms": 1060832467019.2068 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-13T06:57:18+03:00", "utc": "2003-08-13T03:57:18Z", "ms": 1060747037848.9006 }, "end": { "local": "2003-08-14T06:41:07+03:00", "utc": "2003-08-14T03:41:07Z", "ms": 1060832467019.2068 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-08-12", "window": { "start": { "local": "2003-08-12T20:16:47+03:00", "utc": "2003-08-12T17:16:47Z", "ms": 1060708606538.3094 }, "end": { "local": "2003-08-12T20:16:47+03:00", "utc": "2003-08-12T17:16:47Z", "ms": 1060708606538.3094 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-08-13", "window": { "start": { "local": "2003-08-13T20:51:41+03:00", "utc": "2003-08-13T17:51:41Z", "ms": 1060797100733.6179 }, "end": { "local": "2003-08-13T20:51:41+03:00", "utc": "2003-08-13T17:51:41Z", "ms": 1060797100733.6179 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 06:57 on Wed 13 Aug to 06:41 on Thu 14 Aug.", "fact": "2003-08-13T03:57:18Z → 2003-08-14T03:41:07Z" }, { "step": "kaala", "text": "Moonrise is at 20:17 on the 12th and 20:52 on the 13th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 12th and is on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35366 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Cairo, 2003: Wednesday 13 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": "2003-08-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-13", "confidence": "determinate" } ], "quote": "In Cairo, Aśūnya Śayana Vrata 2003 falls on Wednesday 13 August. Dvitīyā runs from 06:57 on Wed 13 Aug to 06:41 on Thu 14 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19876, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2003-08-14T06:41:07+03:00", "utc": "2003-08-14T03:41:07Z", "ms": 1060832467019.2068 }, "end": { "local": "2003-08-15T07:04:05+03:00", "utc": "2003-08-15T04:04:05Z", "ms": 1060920245210.1909 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-14T06:41:07+03:00", "utc": "2003-08-14T03:41:07Z", "ms": 1060832467019.2068 }, "end": { "local": "2003-08-15T07:04:05+03:00", "utc": "2003-08-15T04:04:05Z", "ms": 1060920245210.1909 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-14", "window": { "start": { "local": "2003-08-14T12:35:32+03:00", "utc": "2003-08-14T09:35:32Z", "ms": 1060853732265.0204 }, "end": { "local": "2003-08-14T13:23:32+03:00", "utc": "2003-08-14T10:23:32Z", "ms": 1060856612265.0204 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-15", "window": { "start": { "local": "2003-08-15T12:35:21+03:00", "utc": "2003-08-15T09:35:21Z", "ms": 1060940120738.8096 }, "end": { "local": "2003-08-15T13:23:21+03:00", "utc": "2003-08-15T10:23:21Z", "ms": 1060943000738.8096 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:41 on Thu 14 Aug to 07:04 on Fri 15 Aug.", "fact": "2003-08-14T03:41:07Z → 2003-08-15T04:04:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 14th, 12:35–13:23 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19876 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Cairo, 2003: Thursday 14 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": "2003-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-14", "confidence": "determinate" } ], "quote": "In Cairo, Kajjalī Tṛtīyā (Kajari Teej) 2003 falls on Thursday 14 August. Tṛtīyā runs from 06:41 on Thu 14 Aug to 07:04 on Fri 15 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31760, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-08-15T07:04:05+03:00", "utc": "2003-08-15T04:04:05Z", "ms": 1060920245210.1909 }, "end": { "local": "2003-08-16T08:07:39+03:00", "utc": "2003-08-16T05:07:39Z", "ms": 1061010459191.6074 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-15T07:04:05+03:00", "utc": "2003-08-15T04:04:05Z", "ms": 1060920245210.1909 }, "end": { "local": "2003-08-16T08:07:39+03:00", "utc": "2003-08-16T05:07:39Z", "ms": 1061010459191.6074 } }, "kaala": "sayahna", "days": [ { "local_date": "2003-08-15", "window": { "start": { "local": "2003-08-15T16:57:40+03:00", "utc": "2003-08-15T13:57:40Z", "ms": 1060955859865.977 }, "end": { "local": "2003-08-15T19:36:33+03:00", "utc": "2003-08-15T16:36:33Z", "ms": 1060965392617.422 } }, "covered_min": 159, "window_min": 159, "qualifies": true }, { "local_date": "2003-08-16", "window": { "start": { "local": "2003-08-16T16:56:59+03:00", "utc": "2003-08-16T13:56:59Z", "ms": 1061042219497.9341 }, "end": { "local": "2003-08-16T19:35:33+03:00", "utc": "2003-08-16T16:35:33Z", "ms": 1061051733366.4296 } }, "covered_min": 0, "window_min": 159, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:04 on Fri 15 Aug to 08:08 on Sat 16 Aug.", "fact": "2003-08-15T04:04:05Z → 2003-08-16T05:07:39Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:58–19:37 on the 15th, 16:57–19:36 on the 16th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 159 of 159 minutes on the 15th and 0 of 159 on the 16th.", "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 31760 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Cairo, 2003: Friday 15 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": "2003-08-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-15", "confidence": "determinate" } ], "quote": "In Cairo, Bahulā Caturthī 2003 falls on Friday 15 August. Caturthī runs from 07:04 on Fri 15 Aug to 08:08 on Sat 16 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-08-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34879, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-08-15T07:04:05+03:00", "utc": "2003-08-15T04:04:05Z", "ms": 1060920245210.1909 }, "end": { "local": "2003-08-16T08:07:39+03:00", "utc": "2003-08-16T05:07:39Z", "ms": 1061010459191.6074 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-15T07:04:05+03:00", "utc": "2003-08-15T04:04:05Z", "ms": 1060920245210.1909 }, "end": { "local": "2003-08-16T08:07:39+03:00", "utc": "2003-08-16T05:07:39Z", "ms": 1061010459191.6074 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-08-14", "window": { "start": { "local": "2003-08-14T21:22:46+03:00", "utc": "2003-08-14T18:22:46Z", "ms": 1060885365786.6715 }, "end": { "local": "2003-08-14T21:22:46+03:00", "utc": "2003-08-14T18:22:46Z", "ms": 1060885365786.6715 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-08-15", "window": { "start": { "local": "2003-08-15T21:51:33+03:00", "utc": "2003-08-15T18:51:33Z", "ms": 1060973492733.4513 }, "end": { "local": "2003-08-15T21:51:33+03:00", "utc": "2003-08-15T18:51:33Z", "ms": 1060973492733.4513 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:04 on Fri 15 Aug to 08:08 on Sat 16 Aug.", "fact": "2003-08-15T04:04:05Z → 2003-08-16T05:07:39Z" }, { "step": "kaala", "text": "Moonrise is at 21:23 on the 14th and 21:52 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34879 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Friday 15 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": "2003-08-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-15", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Friday 15 August. Caturthī runs from 07:04 on Fri 15 Aug to 08:08 on Sat 16 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-08-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2023, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2003-08-17T09:49:08+03:00", "utc": "2003-08-17T06:49:08Z", "ms": 1061102948028.1422 }, "end": { "local": "2003-08-18T12:01:00+03:00", "utc": "2003-08-18T09:01:00Z", "ms": 1061197260046.345 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-17T09:49:08+03:00", "utc": "2003-08-17T06:49:08Z", "ms": 1061102948028.1422 }, "end": { "local": "2003-08-18T12:01:00+03:00", "utc": "2003-08-18T09:01:00Z", "ms": 1061197260046.345 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-17", "window": { "start": { "local": "2003-08-17T12:34:56+03:00", "utc": "2003-08-17T09:34:56Z", "ms": 1061112896146.2292 }, "end": { "local": "2003-08-17T13:22:56+03:00", "utc": "2003-08-17T10:22:56Z", "ms": 1061115776146.2292 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-18", "window": { "start": { "local": "2003-08-18T12:34:43+03:00", "utc": "2003-08-18T09:34:43Z", "ms": 1061199283103.9084 }, "end": { "local": "2003-08-18T13:22:43+03:00", "utc": "2003-08-18T10:22:43Z", "ms": 1061202163103.9084 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:49 on Sun 17 Aug to 12:01 on Mon 18 Aug.", "fact": "2003-08-17T06:49:08Z → 2003-08-18T09:01:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 17th, 12:35–13:23 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2023 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Cairo, 2003: Sunday 17 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": "2003-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-18", "confidence": "determinate" } ], "quote": "In Cairo, Hala Ṣaṣṭhī 2003 falls on Sunday 17 August. Ṣaṣṭhī runs from 09:49 on Sun 17 Aug to 12:01 on Mon 18 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2023, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2003-08-18T12:01:00+03:00", "utc": "2003-08-18T09:01:00Z", "ms": 1061197260046.345 }, "end": { "local": "2003-08-19T14:31:05+03:00", "utc": "2003-08-19T11:31:05Z", "ms": 1061292664850.0455 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-18T12:01:00+03:00", "utc": "2003-08-18T09:01:00Z", "ms": 1061197260046.345 }, "end": { "local": "2003-08-19T14:31:05+03:00", "utc": "2003-08-19T11:31:05Z", "ms": 1061292664850.0455 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-18", "window": { "start": { "local": "2003-08-18T12:34:43+03:00", "utc": "2003-08-18T09:34:43Z", "ms": 1061199283103.9084 }, "end": { "local": "2003-08-18T13:22:43+03:00", "utc": "2003-08-18T10:22:43Z", "ms": 1061202163103.9084 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-19", "window": { "start": { "local": "2003-08-19T12:34:30+03:00", "utc": "2003-08-19T09:34:30Z", "ms": 1061285669580.1528 }, "end": { "local": "2003-08-19T13:22:30+03:00", "utc": "2003-08-19T10:22:30Z", "ms": 1061288549580.1528 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:01 on Mon 18 Aug to 14:31 on Tue 19 Aug.", "fact": "2003-08-18T09:01:00Z → 2003-08-19T11:31:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 18th, 12:34–13:22 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 2023 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Cairo, 2003: Monday 18 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": "2003-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-18", "confidence": "determinate" } ], "quote": "In Cairo, Śītalā Saptamī 2003 falls on Monday 18 August. Saptamī runs from 12:01 on Mon 18 Aug to 14:31 on Tue 19 Aug and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27035, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-08-19T14:31:05+03:00", "utc": "2003-08-19T11:31:05Z", "ms": 1061292664850.0455 }, "end": { "local": "2003-08-20T17:03:58+03:00", "utc": "2003-08-20T14:03:58Z", "ms": 1061388237803.8748 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-19T14:31:05+03:00", "utc": "2003-08-19T11:31:05Z", "ms": 1061292664850.0455 }, "end": { "local": "2003-08-20T17:03:58+03:00", "utc": "2003-08-20T14:03:58Z", "ms": 1061388237803.8748 } }, "kaala": "nishita", "days": [ { "local_date": "2003-08-19", "window": { "start": { "local": "2003-08-20T00:34:47+03:00", "utc": "2003-08-19T21:34:47Z", "ms": 1061328886918.3359 }, "end": { "local": "2003-08-20T01:22:47+03:00", "utc": "2003-08-19T22:22:47Z", "ms": 1061331766918.3359 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-20", "window": { "start": { "local": "2003-08-21T00:34:33+03:00", "utc": "2003-08-20T21:34:33Z", "ms": 1061415272862.3488 }, "end": { "local": "2003-08-21T01:22:33+03:00", "utc": "2003-08-20T22:22:33Z", "ms": 1061418152862.3488 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 14:31 on Tue 19 Aug to 17:04 on Wed 20 Aug.", "fact": "2003-08-19T11:31:05Z → 2003-08-20T14:03:58Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:35–01:23 on the 19th, 00:35–01:23 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27035 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Cairo, 2003: Tuesday 19 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": "2003-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-19", "confidence": "determinate" } ], "quote": "In Cairo, Janmāṣṭamī 2003 falls on Tuesday 19 August. Aṣṭamī runs from 14:31 on Tue 19 Aug to 17:04 on Wed 20 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-08-23", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28704, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-08-22T21:15:10+03:00", "utc": "2003-08-22T18:15:10Z", "ms": 1061576110460.8881 }, "end": { "local": "2003-08-23T22:28:57+03:00", "utc": "2003-08-23T19:28:57Z", "ms": 1061666937085.2494 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-22T21:15:10+03:00", "utc": "2003-08-22T18:15:10Z", "ms": 1061576110460.8881 }, "end": { "local": "2003-08-23T22:28:57+03:00", "utc": "2003-08-23T19:28:57Z", "ms": 1061666937085.2494 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-08-23", "window": { "start": { "local": "2003-08-23T06:26:47+03:00", "utc": "2003-08-23T03:26:47Z", "ms": 1061609206740.2186 }, "end": { "local": "2003-08-23T06:26:47+03:00", "utc": "2003-08-23T03:26:47Z", "ms": 1061609206740.2186 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-08-24", "window": { "start": { "local": "2003-08-24T06:27:21+03:00", "utc": "2003-08-24T03:27:21Z", "ms": 1061695640908.1837 }, "end": { "local": "2003-08-24T06:27:21+03:00", "utc": "2003-08-24T03:27:21Z", "ms": 1061695640908.1837 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:15 on Fri 22 Aug to 22:29 on Sat 23 Aug.", "fact": "2003-08-22T18:15:10Z → 2003-08-23T19:28:57Z" }, { "step": "kaala", "text": "Sunrise is at 06:27 on the 23rd and 06:27 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 28704 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Cairo, 2003: Saturday 23 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": "2003-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-23", "confidence": "determinate" } ], "quote": "In Cairo, Ajā Ekādaśī 2003 falls on Saturday 23 August. Ekādaśī runs from 21:15 on Fri 22 Aug to 22:29 on Sat 23 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-08-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-08-25", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6729, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-08-24T22:59:32+03:00", "utc": "2003-08-24T19:59:32Z", "ms": 1061755171981.7332 }, "end": { "local": "2003-08-25T22:46:32+03:00", "utc": "2003-08-25T19:46:32Z", "ms": 1061840791649.9043 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-24T22:59:32+03:00", "utc": "2003-08-24T19:59:32Z", "ms": 1061755171981.7332 }, "end": { "local": "2003-08-25T22:46:32+03:00", "utc": "2003-08-25T19:46:32Z", "ms": 1061840791649.9043 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-08-24", "window": { "start": { "local": "2003-08-24T19:27:09+03:00", "utc": "2003-08-24T16:27:09Z", "ms": 1061742429401.2108 }, "end": { "local": "2003-08-24T20:55:15+03:00", "utc": "2003-08-24T17:55:15Z", "ms": 1061747715473.8771 } }, "covered_min": 0, "window_min": 88, "qualifies": false }, { "local_date": "2003-08-25", "window": { "start": { "local": "2003-08-25T19:26:03+03:00", "utc": "2003-08-25T16:26:03Z", "ms": 1061828763034.0261 }, "end": { "local": "2003-08-25T20:54:22+03:00", "utc": "2003-08-25T17:54:22Z", "ms": 1061834062476.5614 } }, "covered_min": 88, "window_min": 88, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:00 on Sun 24 Aug to 22:47 on Mon 25 Aug.", "fact": "2003-08-24T19:59:32Z → 2003-08-25T19:46:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:27–20:55 on the 24th, 19:26–20:54 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 88 minutes on the 24th and 88 of 88 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 6729 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Monday 25 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": "2003-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-25", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Monday 25 August. Trayodaśī runs from 23:00 on Sun 24 Aug to 22:47 on Mon 25 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-08-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-08-25", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6404, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-08-25T22:46:32+03:00", "utc": "2003-08-25T19:46:32Z", "ms": 1061840791649.9043 }, "end": { "local": "2003-08-26T21:53:26+03:00", "utc": "2003-08-26T18:53:26Z", "ms": 1061924005510.5001 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-25T22:46:32+03:00", "utc": "2003-08-25T19:46:32Z", "ms": 1061840791649.9043 }, "end": { "local": "2003-08-26T21:53:26+03:00", "utc": "2003-08-26T18:53:26Z", "ms": 1061924005510.5001 } }, "kaala": "nishita", "days": [ { "local_date": "2003-08-25", "window": { "start": { "local": "2003-08-26T00:33:16+03:00", "utc": "2003-08-25T21:33:16Z", "ms": 1061847195943.5332 }, "end": { "local": "2003-08-26T01:21:16+03:00", "utc": "2003-08-25T22:21:16Z", "ms": 1061850075943.5332 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-08-26", "window": { "start": { "local": "2003-08-27T00:32:59+03:00", "utc": "2003-08-26T21:32:59Z", "ms": 1061933579312.679 }, "end": { "local": "2003-08-27T01:20:59+03:00", "utc": "2003-08-26T22:20:59Z", "ms": 1061936459312.679 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:47 on Mon 25 Aug to 21:53 on Tue 26 Aug.", "fact": "2003-08-25T19:46:32Z → 2003-08-26T18:53:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:33–01:21 on the 25th, 00:33–01:21 on the 26th.", "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 25th and 0 of 48 on the 26th.", "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 6404 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Monday 25 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-25", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Monday 25 August. Caturdaśī runs from 22:47 on Mon 25 Aug to 21:53 on Tue 26 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-08-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3597, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-08-25T22:46:32+03:00", "utc": "2003-08-25T19:46:32Z", "ms": 1061840791649.9043 }, "end": { "local": "2003-08-26T21:53:26+03:00", "utc": "2003-08-26T18:53:26Z", "ms": 1061924005510.5001 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-25T22:46:32+03:00", "utc": "2003-08-25T19:46:32Z", "ms": 1061840791649.9043 }, "end": { "local": "2003-08-26T21:53:26+03:00", "utc": "2003-08-26T18:53:26Z", "ms": 1061924005510.5001 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-08-25", "window": { "start": { "local": "2003-08-25T19:26:03+03:00", "utc": "2003-08-25T16:26:03Z", "ms": 1061828763034.0261 }, "end": { "local": "2003-08-25T20:54:22+03:00", "utc": "2003-08-25T17:54:22Z", "ms": 1061834062476.5614 } }, "covered_min": 0, "window_min": 88, "qualifies": false }, { "local_date": "2003-08-26", "window": { "start": { "local": "2003-08-26T19:24:56+03:00", "utc": "2003-08-26T16:24:56Z", "ms": 1061915095997.9717 }, "end": { "local": "2003-08-26T20:53:29+03:00", "utc": "2003-08-26T17:53:29Z", "ms": 1061920408881.8937 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:47 on Mon 25 Aug to 21:53 on Tue 26 Aug.", "fact": "2003-08-25T19:46:32Z → 2003-08-26T18:53:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:26–20:54 on the 25th, 19:25–20:53 on the 26th.", "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 88 minutes on the 25th and 89 of 89 on the 26th.", "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 3597 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Cairo, 2003: Tuesday 26 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-26", "confidence": "determinate" } ], "quote": "In Cairo, Aghora Caturdaśī 2003 falls on Tuesday 26 August. Caturdaśī runs from 22:47 on Mon 25 Aug to 21:53 on Tue 26 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18764, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2003-08-27T20:26:21+03:00", "utc": "2003-08-27T17:26:21Z", "ms": 1062005181186.176 }, "end": { "local": "2003-08-28T18:32:52+03:00", "utc": "2003-08-28T15:32:52Z", "ms": 1062084772318.7911 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-27T20:26:21+03:00", "utc": "2003-08-27T17:26:21Z", "ms": 1062005181186.176 }, "end": { "local": "2003-08-28T18:32:52+03:00", "utc": "2003-08-28T15:32:52Z", "ms": 1062084772318.7911 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-27", "window": { "start": { "local": "2003-08-27T12:32:25+03:00", "utc": "2003-08-27T09:32:25Z", "ms": 1061976745471.7386 }, "end": { "local": "2003-08-27T13:20:25+03:00", "utc": "2003-08-27T10:20:25Z", "ms": 1061979625471.7386 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-08-28", "window": { "start": { "local": "2003-08-28T12:32:08+03:00", "utc": "2003-08-28T09:32:08Z", "ms": 1062063128139.5774 }, "end": { "local": "2003-08-28T13:20:08+03:00", "utc": "2003-08-28T10:20:08Z", "ms": 1062066008139.5774 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 20:26 on Wed 27 Aug to 18:33 on Thu 28 Aug.", "fact": "2003-08-27T17:26:21Z → 2003-08-28T15:32:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 27th, 12:32–13:20 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18764 s" }, { "step": "ruling", "text": "Rudra Vrata, Cairo, 2003: Thursday 28 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-28", "confidence": "determinate" } ], "quote": "In Cairo, Rudra Vrata 2003 falls on Thursday 28 August. Pratipadā runs from 20:26 on Wed 27 Aug to 18:33 on Thu 28 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2326, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2003-08-29T16:20:58+03:00", "utc": "2003-08-29T13:20:58Z", "ms": 1062163258332.9636 }, "end": { "local": "2003-08-30T13:58:18+03:00", "utc": "2003-08-30T10:58:18Z", "ms": 1062241098239.5634 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-29T16:20:58+03:00", "utc": "2003-08-29T13:20:58Z", "ms": 1062163258332.9636 }, "end": { "local": "2003-08-30T13:58:18+03:00", "utc": "2003-08-30T10:58:18Z", "ms": 1062241098239.5634 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-29", "window": { "start": { "local": "2003-08-29T12:31:50+03:00", "utc": "2003-08-29T09:31:50Z", "ms": 1062149510439.9102 }, "end": { "local": "2003-08-29T13:19:50+03:00", "utc": "2003-08-29T10:19:50Z", "ms": 1062152390439.9102 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-08-30", "window": { "start": { "local": "2003-08-30T12:31:32+03:00", "utc": "2003-08-30T09:31:32Z", "ms": 1062235892384.0681 }, "end": { "local": "2003-08-30T13:19:32+03:00", "utc": "2003-08-30T10:19:32Z", "ms": 1062238772384.0681 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 16:21 on Fri 29 Aug to 13:58 on Sat 30 Aug.", "fact": "2003-08-29T13:20:58Z → 2003-08-30T10:58:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 29th, 12:32–13:20 on the 30th.", "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 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2326 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Cairo, 2003: Saturday 30 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "haritalika-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-30", "confidence": "determinate" } ], "quote": "In Cairo, Haritālikā Vrata (Hartalika Teej) 2003 falls on Saturday 30 August. Tṛtīyā runs from 16:21 on Fri 29 Aug to 13:58 on Sat 30 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2326, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-08-30T13:58:18+03:00", "utc": "2003-08-30T10:58:18Z", "ms": 1062241098239.5634 }, "end": { "local": "2003-08-31T11:31:38+03:00", "utc": "2003-08-31T08:31:38Z", "ms": 1062318697568.035 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-30T13:58:18+03:00", "utc": "2003-08-30T10:58:18Z", "ms": 1062241098239.5634 }, "end": { "local": "2003-08-31T11:31:38+03:00", "utc": "2003-08-31T08:31:38Z", "ms": 1062318697568.035 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-30", "window": { "start": { "local": "2003-08-30T12:31:32+03:00", "utc": "2003-08-30T09:31:32Z", "ms": 1062235892384.0681 }, "end": { "local": "2003-08-30T13:19:32+03:00", "utc": "2003-08-30T10:19:32Z", "ms": 1062238772384.0681 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-08-31", "window": { "start": { "local": "2003-08-31T12:31:14+03:00", "utc": "2003-08-31T09:31:14Z", "ms": 1062322273984.1597 }, "end": { "local": "2003-08-31T13:19:14+03:00", "utc": "2003-08-31T10:19:14Z", "ms": 1062325153984.1597 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:58 on Sat 30 Aug to 11:32 on Sun 31 Aug.", "fact": "2003-08-30T10:58:18Z → 2003-08-31T08:31:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 30th, 12:31–13:19 on the 31st.", "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 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 2326 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Cairo, 2003: Sunday 31 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-30", "confidence": "determinate" } ], "quote": "In Cairo, Gaṇeśa Caturthī 2003 falls on Sunday 31 August. Caturthī runs from 13:58 on Sat 30 Aug to 11:32 on Sun 31 Aug, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3576, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2003-08-31T11:31:38+03:00", "utc": "2003-08-31T08:31:38Z", "ms": 1062318697568.035 }, "end": { "local": "2003-09-01T09:06:27+03:00", "utc": "2003-09-01T06:06:27Z", "ms": 1062396387448.0095 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-08-31T11:31:38+03:00", "utc": "2003-08-31T08:31:38Z", "ms": 1062318697568.035 }, "end": { "local": "2003-09-01T09:06:27+03:00", "utc": "2003-09-01T06:06:27Z", "ms": 1062396387448.0095 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-08-31", "window": { "start": { "local": "2003-08-31T12:31:14+03:00", "utc": "2003-08-31T09:31:14Z", "ms": 1062322273984.1597 }, "end": { "local": "2003-08-31T13:19:14+03:00", "utc": "2003-08-31T10:19:14Z", "ms": 1062325153984.1597 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-09-01", "window": { "start": { "local": "2003-09-01T12:30:55+03:00", "utc": "2003-09-01T09:30:55Z", "ms": 1062408655253.448 }, "end": { "local": "2003-09-01T13:18:55+03:00", "utc": "2003-09-01T10:18:55Z", "ms": 1062411535253.448 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 11:32 on Sun 31 Aug to 09:06 on Mon 1 Sep.", "fact": "2003-08-31T08:31:38Z → 2003-09-01T06:06:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 31st, 12:31–13:19 on the 1st.", "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 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 3576 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Cairo, 2003: Sunday 31 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rishi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day" } ], "kaala": "madhyahna", "priority": "disputed", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-08-31", "confidence": "determinate" } ], "quote": "In Cairo, Ṛṣi Pañcamī 2003 falls on Sunday 31 August. Pañcamī runs from 11:32 on Sun 31 Aug to 09:06 on Mon 1 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12268, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2003-09-01T09:06:27+03:00", "utc": "2003-09-01T06:06:27Z", "ms": 1062396387448.0095 }, "end": { "local": "2003-09-02T06:46:56+03:00", "utc": "2003-09-02T03:46:56Z", "ms": 1062474415898.0654 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-09-01T09:06:27+03:00", "utc": "2003-09-01T06:06:27Z", "ms": 1062396387448.0095 }, "end": { "local": "2003-09-02T06:46:56+03:00", "utc": "2003-09-02T03:46:56Z", "ms": 1062474415898.0654 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-09-01", "window": { "start": { "local": "2003-09-01T12:30:55+03:00", "utc": "2003-09-01T09:30:55Z", "ms": 1062408655253.448 }, "end": { "local": "2003-09-01T13:18:55+03:00", "utc": "2003-09-01T10:18:55Z", "ms": 1062411535253.448 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-09-02", "window": { "start": { "local": "2003-09-02T12:30:36+03:00", "utc": "2003-09-02T09:30:36Z", "ms": 1062495036206.3892 }, "end": { "local": "2003-09-02T13:18:36+03:00", "utc": "2003-09-02T10:18:36Z", "ms": 1062497916206.3892 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:06 on Mon 1 Sep to 06:47 on Tue 2 Sep.", "fact": "2003-09-01T06:06:27Z → 2003-09-02T03:46:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 1st, 12:31–13:19 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12268 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Cairo, 2003: Monday 1 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": "2003-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-01", "confidence": "determinate" } ], "quote": "In Cairo, Sūrya Ṣaṣṭhī (Bhādrapada) 2003 falls on Monday 1 September. Ṣaṣṭhī runs from 09:06 on Mon 1 Sep to 06:47 on Tue 2 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20620, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2003-09-02T06:46:56+03:00", "utc": "2003-09-02T03:46:56Z", "ms": 1062474415898.0654 }, "end": { "local": "2003-09-03T04:35:52+03:00", "utc": "2003-09-03T01:35:52Z", "ms": 1062552951969.9454 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-09-02T06:46:56+03:00", "utc": "2003-09-02T03:46:56Z", "ms": 1062474415898.0654 }, "end": { "local": "2003-09-03T04:35:52+03:00", "utc": "2003-09-03T01:35:52Z", "ms": 1062552951969.9454 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-09-02", "window": { "start": { "local": "2003-09-02T12:30:36+03:00", "utc": "2003-09-02T09:30:36Z", "ms": 1062495036206.3892 }, "end": { "local": "2003-09-02T13:18:36+03:00", "utc": "2003-09-02T10:18:36Z", "ms": 1062497916206.3892 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-09-03", "window": { "start": { "local": "2003-09-03T12:30:17+03:00", "utc": "2003-09-03T09:30:17Z", "ms": 1062581416858.5948 }, "end": { "local": "2003-09-03T13:18:17+03:00", "utc": "2003-09-03T10:18:17Z", "ms": 1062584296858.5948 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 06:47 on Tue 2 Sep to 04:36 on Wed 3 Sep.", "fact": "2003-09-02T03:46:56Z → 2003-09-03T01:35:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 2nd, 12:30–13:18 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20620 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Cairo, 2003: Tuesday 2 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": "2003-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-02", "confidence": "determinate" } ], "quote": "In Cairo, Muktābharaṇa Vrata 2003 falls on Tuesday 2 September. Saptamī runs from 06:47 on Tue 2 Sep to 04:36 on Wed 3 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28465, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-09-03T04:35:52+03:00", "utc": "2003-09-03T01:35:52Z", "ms": 1062552951969.9454 }, "end": { "local": "2003-09-04T02:35:03+03:00", "utc": "2003-09-03T23:35:03Z", "ms": 1062632102573.1377 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-09-03T04:35:52+03:00", "utc": "2003-09-03T01:35:52Z", "ms": 1062552951969.9454 }, "end": { "local": "2003-09-04T02:35:03+03:00", "utc": "2003-09-03T23:35:03Z", "ms": 1062632102573.1377 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-09-03", "window": { "start": { "local": "2003-09-03T12:30:17+03:00", "utc": "2003-09-03T09:30:17Z", "ms": 1062581416858.5948 }, "end": { "local": "2003-09-03T13:18:17+03:00", "utc": "2003-09-03T10:18:17Z", "ms": 1062584296858.5948 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-09-04", "window": { "start": { "local": "2003-09-04T12:29:57+03:00", "utc": "2003-09-04T09:29:57Z", "ms": 1062667797227.1278 }, "end": { "local": "2003-09-04T13:17:57+03:00", "utc": "2003-09-04T10:17:57Z", "ms": 1062670677227.1278 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:36 on Wed 3 Sep to 02:35 on Thu 4 Sep.", "fact": "2003-09-03T01:35:52Z → 2003-09-03T23:35:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 3rd, 12:30–13:18 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28465 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Cairo, 2003: Wednesday 3 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": "2003-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-03", "confidence": "determinate" } ], "quote": "In Cairo, Rādhāṣṭamī 2003 falls on Wednesday 3 September. Aṣṭamī runs from 04:36 on Wed 3 Sep to 02:35 on Thu 4 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-09-06", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26742, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-09-05T23:08:51+03:00", "utc": "2003-09-05T20:08:51Z", "ms": 1062792531336.9523 }, "end": { "local": "2003-09-06T21:46:13+03:00", "utc": "2003-09-06T18:46:13Z", "ms": 1062873973094.5791 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-09-05T23:08:51+03:00", "utc": "2003-09-05T20:08:51Z", "ms": 1062792531336.9523 }, "end": { "local": "2003-09-06T21:46:13+03:00", "utc": "2003-09-06T18:46:13Z", "ms": 1062873973094.5791 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-09-06", "window": { "start": { "local": "2003-09-06T06:34:33+03:00", "utc": "2003-09-06T03:34:33Z", "ms": 1062819273199.3164 }, "end": { "local": "2003-09-06T06:34:33+03:00", "utc": "2003-09-06T03:34:33Z", "ms": 1062819273199.3164 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-09-07", "window": { "start": { "local": "2003-09-07T06:35:06+03:00", "utc": "2003-09-07T03:35:06Z", "ms": 1062905705636.0314 }, "end": { "local": "2003-09-07T06:35:06+03:00", "utc": "2003-09-07T03:35:06Z", "ms": 1062905705636.0314 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:09 on Fri 5 Sep to 21:46 on Sat 6 Sep.", "fact": "2003-09-05T20:08:51Z → 2003-09-06T18:46:13Z" }, { "step": "kaala", "text": "Sunrise is at 06:35 on the 6th and 06:35 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 26742 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Cairo, 2003: Saturday 6 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": "2003-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-06", "confidence": "determinate" } ], "quote": "In Cairo, Parivartanī Ekādaśī 2003 falls on Saturday 6 September. Ekādaśī runs from 23:09 on Fri 5 Sep to 21:46 on Sat 6 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-09-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26590, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2003-09-06T21:46:13+03:00", "utc": "2003-09-06T18:46:13Z", "ms": 1062873973094.5791 }, "end": { "local": "2003-09-07T20:40:06+03:00", "utc": "2003-09-07T17:40:06Z", "ms": 1062956406483.8667 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-09-06T21:46:13+03:00", "utc": "2003-09-06T18:46:13Z", "ms": 1062873973094.5791 }, "end": { "local": "2003-09-07T20:40:06+03:00", "utc": "2003-09-07T17:40:06Z", "ms": 1062956406483.8667 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-09-06", "window": { "start": { "local": "2003-09-06T12:29:17+03:00", "utc": "2003-09-06T09:29:17Z", "ms": 1062840557187.5513 }, "end": { "local": "2003-09-06T13:17:17+03:00", "utc": "2003-09-06T10:17:17Z", "ms": 1062843437187.5513 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-09-07", "window": { "start": { "local": "2003-09-07T12:28:57+03:00", "utc": "2003-09-07T09:28:57Z", "ms": 1062926936819.3143 }, "end": { "local": "2003-09-07T13:16:57+03:00", "utc": "2003-09-07T10:16:57Z", "ms": 1062929816819.3143 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 21:46 on Sat 6 Sep to 20:40 on Sun 7 Sep.", "fact": "2003-09-06T18:46:13Z → 2003-09-07T17:40:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 6th, 12:29–13:17 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26590 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Cairo, 2003: Sunday 7 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": "2003-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-07", "confidence": "determinate" } ], "quote": "In Cairo, Vāmana Jayantī 2003 falls on Sunday 7 September. Dvādaśī runs from 21:46 on Sat 6 Sep to 20:40 on Sun 7 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-09-08", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-08", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 120, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-09-07T20:40:06+03:00", "utc": "2003-09-07T17:40:06Z", "ms": 1062956406483.8667 }, "end": { "local": "2003-09-08T19:53:46+03:00", "utc": "2003-09-08T16:53:46Z", "ms": 1063040025699.4503 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-09-07T20:40:06+03:00", "utc": "2003-09-07T17:40:06Z", "ms": 1062956406483.8667 }, "end": { "local": "2003-09-08T19:53:46+03:00", "utc": "2003-09-08T16:53:46Z", "ms": 1063040025699.4503 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-09-07", "window": { "start": { "local": "2003-09-07T19:10:48+03:00", "utc": "2003-09-07T16:10:48Z", "ms": 1062951048002.5973 }, "end": { "local": "2003-09-07T20:42:07+03:00", "utc": "2003-09-07T17:42:07Z", "ms": 1062956526668.5906 } }, "covered_min": 2, "window_min": 91, "qualifies": true }, { "local_date": "2003-09-08", "window": { "start": { "local": "2003-09-08T19:09:34+03:00", "utc": "2003-09-08T16:09:34Z", "ms": 1063037374496.0924 }, "end": { "local": "2003-09-08T20:41:07+03:00", "utc": "2003-09-08T17:41:07Z", "ms": 1063042867269.6843 } }, "covered_min": 44, "window_min": 92, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:40 on Sun 7 Sep to 19:54 on Mon 8 Sep.", "fact": "2003-09-07T17:40:06Z → 2003-09-08T16:53:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:11–20:42 on the 7th, 19:10–20:41 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 2 of 91 minutes on the 7th and 44 of 92 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 120 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Monday 8 September.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-09-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-07", "confidence": "boundary" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Monday 8 September. Trayodaśī runs from 20:40 on Sun 7 Sep to 19:54 on Mon 8 Sep and covers 44 of 92 minutes of pradoṣa that evening. It also reaches the previous evening for 2 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 2 min 00 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-09-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37470, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-09-08T19:53:46+03:00", "utc": "2003-09-08T16:53:46Z", "ms": 1063040025699.4503 }, "end": { "local": "2003-09-09T19:31:06+03:00", "utc": "2003-09-09T16:31:06Z", "ms": 1063125066075.6951 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2003-09-08T19:53:46+03:00", "utc": "2003-09-08T16:53:46Z", "ms": 1063040025699.4503 }, "end": { "local": "2003-09-09T19:31:06+03:00", "utc": "2003-09-09T16:31:06Z", "ms": 1063125066075.6951 } }, "kaala": "udaya-3", "days": [ { "local_date": "2003-09-08", "window": { "start": { "local": "2003-09-08T06:35:38+03:00", "utc": "2003-09-08T03:35:38Z", "ms": 1062992137997.547 }, "end": { "local": "2003-09-08T09:06:25+03:00", "utc": "2003-09-08T06:06:25Z", "ms": 1063001185297.2561 } }, "covered_min": 0, "window_min": 151, "qualifies": false }, { "local_date": "2003-09-09", "window": { "start": { "local": "2003-09-09T06:36:10+03:00", "utc": "2003-09-09T03:36:10Z", "ms": 1063078570298.0317 }, "end": { "local": "2003-09-09T09:06:36+03:00", "utc": "2003-09-09T06:06:36Z", "ms": 1063087596375.581 } }, "covered_min": 150, "window_min": 150, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:54 on Mon 8 Sep to 19:31 on Tue 9 Sep.", "fact": "2003-09-08T16:53:46Z → 2003-09-09T16:31:06Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:36–09:06 on the 8th, 06:36–09:07 on the 9th.", "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 151 minutes on the 8th and 150 of 150 on the 9th.", "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 37470 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Cairo, 2003: Tuesday 9 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": "2003-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-09", "confidence": "determinate" } ], "quote": "In Cairo, Ananta Caturdaśī 2003 falls on Tuesday 9 September. Caturdaśī runs from 19:54 on Mon 8 Sep to 19:31 on Tue 9 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-09-14", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8272, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-09-13T23:05:17+03:00", "utc": "2003-09-13T20:05:17Z", "ms": 1063483516897.454 }, "end": { "local": "2003-09-15T01:16:15+03:00", "utc": "2003-09-14T22:16:15Z", "ms": 1063577775102.8872 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-13T23:05:17+03:00", "utc": "2003-09-13T20:05:17Z", "ms": 1063483516897.454 }, "end": { "local": "2003-09-15T01:16:15+03:00", "utc": "2003-09-14T22:16:15Z", "ms": 1063577775102.8872 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-09-13", "window": { "start": { "local": "2003-09-13T20:47:25+03:00", "utc": "2003-09-13T17:47:25Z", "ms": 1063475244794.2987 }, "end": { "local": "2003-09-13T20:47:25+03:00", "utc": "2003-09-13T17:47:25Z", "ms": 1063475244794.2987 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-09-14", "window": { "start": { "local": "2003-09-14T21:16:16+03:00", "utc": "2003-09-14T18:16:16Z", "ms": 1063563375870.3339 }, "end": { "local": "2003-09-14T21:16:16+03:00", "utc": "2003-09-14T18:16:16Z", "ms": 1063563375870.3339 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:05 on Sat 13 Sep to 01:16 on Mon 15 Sep.", "fact": "2003-09-13T20:05:17Z → 2003-09-14T22:16:15Z" }, { "step": "kaala", "text": "Moonrise is at 20:47 on the 13th and 21:16 on the 14th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8272 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Sunday 14 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": "2003-09-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-14", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Sunday 14 September. Caturthī runs from 23:05 on Sat 13 Sep to 01:16 on Mon 15 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-09-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21584, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2003-09-16T03:47:00+03:00", "utc": "2003-09-16T00:47:00Z", "ms": 1063673220487.1609 }, "end": { "local": "2003-09-17T06:25:04+03:00", "utc": "2003-09-17T03:25:04Z", "ms": 1063769103910.0503 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-16T03:47:00+03:00", "utc": "2003-09-16T00:47:00Z", "ms": 1063673220487.1609 }, "end": { "local": "2003-09-17T06:25:04+03:00", "utc": "2003-09-17T03:25:04Z", "ms": 1063769103910.0503 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-09-15", "window": { "start": { "local": "2003-09-15T21:47:16+03:00", "utc": "2003-09-15T18:47:16Z", "ms": 1063651636336.005 }, "end": { "local": "2003-09-15T21:47:16+03:00", "utc": "2003-09-15T18:47:16Z", "ms": 1063651636336.005 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-09-16", "window": { "start": { "local": "2003-09-16T22:21:37+03:00", "utc": "2003-09-16T19:21:37Z", "ms": 1063740097136.6875 }, "end": { "local": "2003-09-16T22:21:37+03:00", "utc": "2003-09-16T19:21:37Z", "ms": 1063740097136.6875 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:47 on Tue 16 Sep to 06:25 on Wed 17 Sep.", "fact": "2003-09-16T00:47:00Z → 2003-09-17T03:25:04Z" }, { "step": "kaala", "text": "Moonrise is at 21:47 on the 15th and 22:22 on the 16th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 15th and is on the 16th.", "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 21584 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Cairo, 2003: Tuesday 16 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": "2003-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-16", "confidence": "determinate" } ], "quote": "In Cairo, Candra Ṣaṣṭhī 2003 falls on Tuesday 16 September. Ṣaṣṭhī runs from 03:47 on Tue 16 Sep to 06:25 on Wed 17 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28383, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-09-18T08:55:25+03:00", "utc": "2003-09-18T05:55:25Z", "ms": 1063864525251.8252 }, "end": { "local": "2003-09-19T11:02:50+03:00", "utc": "2003-09-19T08:02:50Z", "ms": 1063958569572.1041 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-18T08:55:25+03:00", "utc": "2003-09-18T05:55:25Z", "ms": 1063864525251.8252 }, "end": { "local": "2003-09-19T11:02:50+03:00", "utc": "2003-09-19T08:02:50Z", "ms": 1063958569572.1041 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-09-18", "window": { "start": { "local": "2003-09-18T18:57:08+03:00", "utc": "2003-09-18T15:57:08Z", "ms": 1063900627527.7865 }, "end": { "local": "2003-09-18T20:31:03+03:00", "utc": "2003-09-18T17:31:03Z", "ms": 1063906262968.7831 } }, "covered_min": 94, "window_min": 94, "qualifies": true }, { "local_date": "2003-09-19", "window": { "start": { "local": "2003-09-19T18:55:52+03:00", "utc": "2003-09-19T15:55:52Z", "ms": 1063986952269.8682 }, "end": { "local": "2003-09-19T20:30:02+03:00", "utc": "2003-09-19T17:30:02Z", "ms": 1063992602096.4834 } }, "covered_min": 0, "window_min": 94, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 08:55 on Thu 18 Sep to 11:03 on Fri 19 Sep.", "fact": "2003-09-18T05:55:25Z → 2003-09-19T08:02:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:31 on the 18th, 18:56–20:30 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī 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. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28383 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Cairo, 2003: Thursday 18 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": "2003-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-18", "confidence": "determinate" } ], "quote": "In Cairo, Jitāṣṭamī (Jitiya) 2003 falls on Thursday 18 September. Aṣṭamī runs from 08:55 on Thu 18 Sep to 11:03 on Fri 19 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35697, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-09-18T08:55:25+03:00", "utc": "2003-09-18T05:55:25Z", "ms": 1063864525251.8252 }, "end": { "local": "2003-09-19T11:02:50+03:00", "utc": "2003-09-19T08:02:50Z", "ms": 1063958569572.1041 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-18T08:55:25+03:00", "utc": "2003-09-18T05:55:25Z", "ms": 1063864525251.8252 }, "end": { "local": "2003-09-19T11:02:50+03:00", "utc": "2003-09-19T08:02:50Z", "ms": 1063958569572.1041 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-09-17", "window": { "start": { "local": "2003-09-17T23:00:28+03:00", "utc": "2003-09-17T20:00:28Z", "ms": 1063828828315.8594 }, "end": { "local": "2003-09-17T23:00:28+03:00", "utc": "2003-09-17T20:00:28Z", "ms": 1063828828315.8594 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-09-18", "window": { "start": { "local": "2003-09-18T23:44:49+03:00", "utc": "2003-09-18T20:44:49Z", "ms": 1063917888645.7683 }, "end": { "local": "2003-09-18T23:44:49+03:00", "utc": "2003-09-18T20:44:49Z", "ms": 1063917888645.7683 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 08:55 on Thu 18 Sep to 11:03 on Fri 19 Sep.", "fact": "2003-09-18T05:55:25Z → 2003-09-19T08:02:50Z" }, { "step": "kaala", "text": "Moonrise is at 23:00 on the 17th and 23:45 on the 18th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 17th and is on the 18th.", "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 35697 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Cairo, 2003: Thursday 18 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": "2003-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-18", "confidence": "determinate" } ], "quote": "In Cairo, Mahālakṣmī Vrata Samāpana 2003 falls on Thursday 18 September. Aṣṭamī runs from 08:55 on Thu 18 Sep to 11:03 on Fri 19 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-09-22", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23734, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-09-21T13:20:53+03:00", "utc": "2003-09-21T10:20:53Z", "ms": 1064139653125.222 }, "end": { "local": "2003-09-22T13:18:46+03:00", "utc": "2003-09-22T10:18:46Z", "ms": 1064225926004.0059 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-21T13:20:53+03:00", "utc": "2003-09-21T10:20:53Z", "ms": 1064139653125.222 }, "end": { "local": "2003-09-22T13:18:46+03:00", "utc": "2003-09-22T10:18:46Z", "ms": 1064225926004.0059 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-09-21", "window": { "start": { "local": "2003-09-21T06:42:39+03:00", "utc": "2003-09-21T03:42:39Z", "ms": 1064115758718.1371 }, "end": { "local": "2003-09-21T06:42:39+03:00", "utc": "2003-09-21T03:42:39Z", "ms": 1064115758718.1371 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-09-22", "window": { "start": { "local": "2003-09-22T06:43:12+03:00", "utc": "2003-09-22T03:43:12Z", "ms": 1064202191593.0476 }, "end": { "local": "2003-09-22T06:43:12+03:00", "utc": "2003-09-22T03:43:12Z", "ms": 1064202191593.0476 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:21 on Sun 21 Sep to 13:19 on Mon 22 Sep.", "fact": "2003-09-21T10:20:53Z → 2003-09-22T10:18:46Z" }, { "step": "kaala", "text": "Sunrise is at 06:43 on the 21st and 06:43 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 23734 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Cairo, 2003: Monday 22 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": "2003-09-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-22", "confidence": "determinate" } ], "quote": "In Cairo, Indirā Ekādaśī 2003 falls on Monday 22 September. Ekādaśī runs from 13:21 on Sun 21 Sep to 13:19 on Mon 22 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-09-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-09-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22928, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-09-23T12:28:44+03:00", "utc": "2003-09-23T09:28:44Z", "ms": 1064309324095.5195 }, "end": { "local": "2003-09-24T10:55:24+03:00", "utc": "2003-09-24T07:55:24Z", "ms": 1064390124041.8572 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-23T12:28:44+03:00", "utc": "2003-09-23T09:28:44Z", "ms": 1064309324095.5195 }, "end": { "local": "2003-09-24T10:55:24+03:00", "utc": "2003-09-24T07:55:24Z", "ms": 1064390124041.8572 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-09-23", "window": { "start": { "local": "2003-09-23T18:50:52+03:00", "utc": "2003-09-23T15:50:52Z", "ms": 1064332251603.2927 }, "end": { "local": "2003-09-23T20:25:59+03:00", "utc": "2003-09-23T17:25:59Z", "ms": 1064337959091.5012 } }, "covered_min": 95, "window_min": 95, "qualifies": true }, { "local_date": "2003-09-24", "window": { "start": { "local": "2003-09-24T18:49:37+03:00", "utc": "2003-09-24T15:49:37Z", "ms": 1064418576660.139 }, "end": { "local": "2003-09-24T20:24:59+03:00", "utc": "2003-09-24T17:24:59Z", "ms": 1064424298582.9419 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:29 on Tue 23 Sep to 10:55 on Wed 24 Sep.", "fact": "2003-09-23T09:28:44Z → 2003-09-24T07:55:24Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:26 on the 23rd, 18:50–20:25 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 95 of 95 minutes on the 23rd and 0 of 95 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 22928 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Tuesday 23 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": "2003-09-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-23", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Tuesday 23 September. Trayodaśī runs from 12:29 on Tue 23 Sep to 10:55 on Wed 24 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-09-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-09-24", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27285, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-09-24T10:55:24+03:00", "utc": "2003-09-24T07:55:24Z", "ms": 1064390124041.8572 }, "end": { "local": "2003-09-25T08:45:59+03:00", "utc": "2003-09-25T05:45:59Z", "ms": 1064468759040.1119 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-24T10:55:24+03:00", "utc": "2003-09-24T07:55:24Z", "ms": 1064390124041.8572 }, "end": { "local": "2003-09-25T08:45:59+03:00", "utc": "2003-09-25T05:45:59Z", "ms": 1064468759040.1119 } }, "kaala": "nishita", "days": [ { "local_date": "2003-09-23", "window": { "start": { "local": "2003-09-24T00:23:35+03:00", "utc": "2003-09-23T21:23:35Z", "ms": 1064352214684.0747 }, "end": { "local": "2003-09-24T01:11:35+03:00", "utc": "2003-09-23T22:11:35Z", "ms": 1064355094684.0747 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-09-24", "window": { "start": { "local": "2003-09-25T00:23:14+03:00", "utc": "2003-09-24T21:23:14Z", "ms": 1064438593870.6497 }, "end": { "local": "2003-09-25T01:11:14+03:00", "utc": "2003-09-24T22:11:14Z", "ms": 1064441473870.6497 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:55 on Wed 24 Sep to 08:46 on Thu 25 Sep.", "fact": "2003-09-24T07:55:24Z → 2003-09-25T05:45:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:24–01:12 on the 23rd, 00:23–01:11 on the 24th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27285 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Wednesday 24 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": "2003-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-24", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Wednesday 24 September. Caturdaśī runs from 10:55 on Wed 24 Sep to 08:46 on Thu 25 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18779, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2003-09-25T08:45:59+03:00", "utc": "2003-09-25T05:45:59Z", "ms": 1064468759040.1119 }, "end": { "local": "2003-09-26T05:09:12+02:00", "utc": "2003-09-26T03:09:12Z", "ms": 1064545751913.7961 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-25T08:45:59+03:00", "utc": "2003-09-25T05:45:59Z", "ms": 1064468759040.1119 }, "end": { "local": "2003-09-26T05:09:12+02:00", "utc": "2003-09-26T03:09:12Z", "ms": 1064545751913.7961 } }, "kaala": "aparahna", "days": [ { "local_date": "2003-09-25", "window": { "start": { "local": "2003-09-25T13:58:58+03:00", "utc": "2003-09-25T10:58:58Z", "ms": 1064487537546.9026 }, "end": { "local": "2003-09-25T16:23:40+03:00", "utc": "2003-09-25T13:23:40Z", "ms": 1064496219702.15 } }, "covered_min": 145, "window_min": 145, "qualifies": true }, { "local_date": "2003-09-26", "window": { "start": { "local": "2003-09-26T12:58:26+02:00", "utc": "2003-09-26T10:58:26Z", "ms": 1064573906156.814 }, "end": { "local": "2003-09-26T15:22:47+02:00", "utc": "2003-09-26T13:22:47Z", "ms": 1064582566688.2119 } }, "covered_min": 0, "window_min": 144, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 08:46 on Thu 25 Sep to 05:09 on Fri 26 Sep.", "fact": "2003-09-25T05:45:59Z → 2003-09-26T03:09:12Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:59–16:24 on the 25th, 12:58–15:23 on the 26th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 145 of 145 minutes on the 25th and 0 of 144 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18779 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Cairo, 2003: Thursday 25 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-25", "confidence": "determinate" } ], "quote": "In Cairo, Mahālaya Amāvāsyā 2003 falls on Thursday 25 September. Amāvasyā runs from 08:46 on Thu 25 Sep to 05:09 on Fri 26 Sep and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22384, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2003-09-26T05:09:12+02:00", "utc": "2003-09-26T03:09:12Z", "ms": 1064545751913.7961 }, "end": { "local": "2003-09-27T02:14:21+02:00", "utc": "2003-09-27T00:14:21Z", "ms": 1064621660563.4099 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-26T05:09:12+02:00", "utc": "2003-09-26T03:09:12Z", "ms": 1064545751913.7961 }, "end": { "local": "2003-09-27T02:14:21+02:00", "utc": "2003-09-27T00:14:21Z", "ms": 1064621660563.4099 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-09-26", "window": { "start": { "local": "2003-09-26T11:22:16+02:00", "utc": "2003-09-26T09:22:16Z", "ms": 1064568135891.115 }, "end": { "local": "2003-09-26T12:10:16+02:00", "utc": "2003-09-26T10:10:16Z", "ms": 1064571015891.115 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-09-27", "window": { "start": { "local": "2003-09-27T11:21:55+02:00", "utc": "2003-09-27T09:21:55Z", "ms": 1064654515494.0779 }, "end": { "local": "2003-09-27T12:09:55+02:00", "utc": "2003-09-27T10:09:55Z", "ms": 1064657395494.0779 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 05:09 on Fri 26 Sep to 02:14 on Sat 27 Sep.", "fact": "2003-09-26T03:09:12Z → 2003-09-27T00:14:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 26th, 11:22–12:10 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22384 s" }, { "step": "ruling", "text": "Navarātrārambha, Cairo, 2003: Friday 26 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-26", "confidence": "determinate" } ], "quote": "In Cairo, Navarātrārambha (Navratri) 2003 falls on Friday 26 September. Pratipadā runs from 05:09 on Fri 26 Sep to 02:14 on Sat 27 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-09-29", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18041, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-09-28T20:06:36+02:00", "utc": "2003-09-28T18:06:36Z", "ms": 1064772396273.3086 }, "end": { "local": "2003-09-29T17:09:56+02:00", "utc": "2003-09-29T15:09:56Z", "ms": 1064848196401.2545 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-09-28T20:06:36+02:00", "utc": "2003-09-28T18:06:36Z", "ms": 1064772396273.3086 }, "end": { "local": "2003-09-29T17:09:56+02:00", "utc": "2003-09-29T15:09:56Z", "ms": 1064848196401.2545 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-09-28", "window": { "start": { "local": "2003-09-28T11:21:35+02:00", "utc": "2003-09-28T09:21:35Z", "ms": 1064740895294.1433 }, "end": { "local": "2003-09-28T12:09:35+02:00", "utc": "2003-09-28T10:09:35Z", "ms": 1064743775294.1433 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-09-29", "window": { "start": { "local": "2003-09-29T11:21:15+02:00", "utc": "2003-09-29T09:21:15Z", "ms": 1064827275307.5796 }, "end": { "local": "2003-09-29T12:09:15+02:00", "utc": "2003-09-29T10:09:15Z", "ms": 1064830155307.5796 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:07 on Sun 28 Sep to 17:10 on Mon 29 Sep.", "fact": "2003-09-28T18:06:36Z → 2003-09-29T15:09:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 28th, 11:21–12:09 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18041 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Monday 29 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-09-29", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Monday 29 September. Caturthī runs from 20:07 on Sun 28 Sep to 17:10 on Mon 29 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-09-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12290, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2003-10-01T12:02:51+02:00", "utc": "2003-10-01T10:02:51Z", "ms": 1065002571150.3005 }, "end": { "local": "2003-10-02T10:01:03+02:00", "utc": "2003-10-02T08:01:03Z", "ms": 1065081663089.8074 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-10-01T12:02:51+02:00", "utc": "2003-10-01T10:02:51Z", "ms": 1065002571150.3005 }, "end": { "local": "2003-10-02T10:01:03+02:00", "utc": "2003-10-02T08:01:03Z", "ms": 1065081663089.8074 } }, "kaala": "udaya-1", "days": [ { "local_date": "2003-10-01", "window": { "start": { "local": "2003-10-01T05:48:15+02:00", "utc": "2003-10-01T03:48:15Z", "ms": 1064980094718.638 }, "end": { "local": "2003-10-01T06:35:46+02:00", "utc": "2003-10-01T04:35:46Z", "ms": 1064982945561.9132 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-10-02", "window": { "start": { "local": "2003-10-02T05:48:49+02:00", "utc": "2003-10-02T03:48:49Z", "ms": 1065066529357.2982 }, "end": { "local": "2003-10-02T06:36:13+02:00", "utc": "2003-10-02T04:36:13Z", "ms": 1065069373016.611 } }, "covered_min": 47, "window_min": 47, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:03 on Wed 1 Oct to 10:01 on Thu 2 Oct.", "fact": "2003-10-01T10:02:51Z → 2003-10-02T08:01:03Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:48–06:36 on the 1st, 05:49–06:36 on the 2nd.", "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 0 of 48 minutes on the 1st and 47 of 47 on the 2nd.", "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 12290 s" }, { "step": "ruling", "text": "Durgā Saptamī, Cairo, 2003: Thursday 2 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": "2003-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-02", "confidence": "determinate" } ], "quote": "In Cairo, Durgā Saptamī 2003 falls on Thursday 2 October. Saptamī runs from 12:03 on Wed 1 Oct to 10:01 on Thu 2 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4754, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-10-02T10:01:03+02:00", "utc": "2003-10-02T08:01:03Z", "ms": 1065081663089.8074 }, "end": { "local": "2003-10-03T08:23:55+02:00", "utc": "2003-10-03T06:23:55Z", "ms": 1065162234975.2699 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-10-02T10:01:03+02:00", "utc": "2003-10-02T08:01:03Z", "ms": 1065081663089.8074 }, "end": { "local": "2003-10-03T08:23:55+02:00", "utc": "2003-10-03T06:23:55Z", "ms": 1065162234975.2699 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-10-02", "window": { "start": { "local": "2003-10-02T11:20:17+02:00", "utc": "2003-10-02T09:20:17Z", "ms": 1065086416802.144 }, "end": { "local": "2003-10-02T12:08:17+02:00", "utc": "2003-10-02T10:08:17Z", "ms": 1065089296802.144 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-10-03", "window": { "start": { "local": "2003-10-03T11:19:58+02:00", "utc": "2003-10-03T09:19:58Z", "ms": 1065172797847.7993 }, "end": { "local": "2003-10-03T12:07:58+02:00", "utc": "2003-10-03T10:07:58Z", "ms": 1065175677847.7993 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:01 on Thu 2 Oct to 08:24 on Fri 3 Oct.", "fact": "2003-10-02T08:01:03Z → 2003-10-03T06:23:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:20–12:08 on the 2nd, 11:20–12:08 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 0 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4754 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Cairo, 2003: Thursday 2 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": "2003-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-02", "confidence": "determinate" } ], "quote": "In Cairo, Mahāṣṭamī (Durga Ashtami) 2003 falls on Thursday 2 October. Aṣṭamī runs from 10:01 on Thu 2 Oct to 08:24 on Fri 3 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10563, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2003-10-03T08:23:55+02:00", "utc": "2003-10-03T06:23:55Z", "ms": 1065162234975.2699 }, "end": { "local": "2003-10-04T07:12:42+02:00", "utc": "2003-10-04T05:12:42Z", "ms": 1065244361697.9236 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-10-03T08:23:55+02:00", "utc": "2003-10-03T06:23:55Z", "ms": 1065162234975.2699 }, "end": { "local": "2003-10-04T07:12:42+02:00", "utc": "2003-10-04T05:12:42Z", "ms": 1065244361697.9236 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-10-03", "window": { "start": { "local": "2003-10-03T11:19:58+02:00", "utc": "2003-10-03T09:19:58Z", "ms": 1065172797847.7993 }, "end": { "local": "2003-10-03T12:07:58+02:00", "utc": "2003-10-03T10:07:58Z", "ms": 1065175677847.7993 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-10-04", "window": { "start": { "local": "2003-10-04T11:19:39+02:00", "utc": "2003-10-04T09:19:39Z", "ms": 1065259179200.8843 }, "end": { "local": "2003-10-04T12:07:39+02:00", "utc": "2003-10-04T10:07:39Z", "ms": 1065262059200.8843 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 08:24 on Fri 3 Oct to 07:13 on Sat 4 Oct.", "fact": "2003-10-03T06:23:55Z → 2003-10-04T05:12:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:20–12:08 on the 3rd, 11:20–12:08 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10563 s" }, { "step": "ruling", "text": "Mahānavamī, Cairo, 2003: Friday 3 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": "2003-10-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-03", "confidence": "determinate" } ], "quote": "In Cairo, Mahānavamī 2003 falls on Friday 3 October. Navamī runs from 08:24 on Fri 3 Oct to 07:13 on Sat 4 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-04", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2241, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2003-10-04T07:12:42+02:00", "utc": "2003-10-04T05:12:42Z", "ms": 1065244361697.9236 }, "end": { "local": "2003-10-05T06:27:56+02:00", "utc": "2003-10-05T04:27:56Z", "ms": 1065328075910.4492 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "2003-10-04T16:44:06+02:00", "utc": "2003-10-04T14:44:06Z", "ms": 1065278646005.3907 }, "end": { "local": "2003-10-05T06:27:56+02:00", "utc": "2003-10-05T04:27:56Z", "ms": 1065328075910.4492 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "2003-10-04T16:44:06+02:00", "utc": "2003-10-04T14:44:06Z", "ms": 1065278646005.3907 }, "end": { "local": "2003-10-05T16:50:58+02:00", "utc": "2003-10-05T14:50:58Z", "ms": 1065365458177.8994 } } }, "kaala": "daytime", "days": [ { "local_date": "2003-10-04", "window": { "start": { "local": "2003-10-04T05:49:59+02:00", "utc": "2003-10-04T03:49:59Z", "ms": 1065239399322.3549 }, "end": { "local": "2003-10-04T17:37:19+02:00", "utc": "2003-10-04T15:37:19Z", "ms": 1065281839079.4137 } }, "covered_min": 53, "window_min": 707, "qualifies": true }, { "local_date": "2003-10-05", "window": { "start": { "local": "2003-10-05T05:50:35+02:00", "utc": "2003-10-05T03:50:35Z", "ms": 1065325834673.7627 }, "end": { "local": "2003-10-05T17:36:07+02:00", "utc": "2003-10-05T15:36:07Z", "ms": 1065368167091.9734 } }, "covered_min": 37, "window_min": 706, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Daśamī runs from 07:13 on Sat 4 Oct to 06:28 on Sun 5 Oct, and Śravaṇa from 16:44 on Sat 4 Oct to 16:51 on Sun 5 Oct. They are together from 16:44 on Sat 4 Oct to 06:28 on Sun 5 Oct.", "fact": "2003-10-04T14:44:06Z → 2003-10-05T04:27:56Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 05:50–17:37 on the 4th, 05:51–17:36 on the 5th.", "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 53 of 707 minutes on the 4th and 37 of 706 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2241 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Cairo, 2003: Saturday 4 October.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2003-10-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-04", "confidence": "boundary" } ], "quote": "In Cairo, Vijayā Daśamī (Dussehra) 2003 falls on Saturday 4 October. Daśamī runs from 07:13 on Sat 4 Oct to 06:28 on Sun 5 Oct and is with Śravaṇa in the day time that day, for 53 minutes. They are together in the day time on the next day too, for 37 minutes; the rule does not say which to take, and the day they share longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-10-06", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1120, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-10-05T06:27:56+02:00", "utc": "2003-10-05T04:27:56Z", "ms": 1065328075910.4492 }, "end": { "local": "2003-10-06T06:09:50+02:00", "utc": "2003-10-06T04:09:50Z", "ms": 1065413390346.509 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-10-05T06:27:56+02:00", "utc": "2003-10-05T04:27:56Z", "ms": 1065328075910.4492 }, "end": { "local": "2003-10-06T06:09:50+02:00", "utc": "2003-10-06T04:09:50Z", "ms": 1065413390346.509 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-10-05", "window": { "start": { "local": "2003-10-05T05:50:35+02:00", "utc": "2003-10-05T03:50:35Z", "ms": 1065325834673.7627 }, "end": { "local": "2003-10-05T05:50:35+02:00", "utc": "2003-10-05T03:50:35Z", "ms": 1065325834673.7627 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-10-06", "window": { "start": { "local": "2003-10-06T05:51:10+02:00", "utc": "2003-10-06T03:51:10Z", "ms": 1065412270289.286 }, "end": { "local": "2003-10-06T05:51:10+02:00", "utc": "2003-10-06T03:51:10Z", "ms": 1065412270289.286 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:28 on Sun 5 Oct to 06:10 on Mon 6 Oct.", "fact": "2003-10-05T04:27:56Z → 2003-10-06T04:09:50Z" }, { "step": "kaala", "text": "Sunrise is at 05:51 on the 5th and 05:51 on the 6th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1120 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Cairo, 2003: Monday 6 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": "2003-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-06", "confidence": "determinate" } ], "quote": "In Cairo, Pāśāṅkuśā Ekādaśī 2003 falls on Monday 6 October. Ekādaśī runs from 06:28 on Sun 5 Oct to 06:10 on Mon 6 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-10-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-10-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38289, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-10-07T06:18:35+02:00", "utc": "2003-10-07T04:18:35Z", "ms": 1065500315233.0466 }, "end": { "local": "2003-10-08T06:54:25+02:00", "utc": "2003-10-08T04:54:25Z", "ms": 1065588864833.3881 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2003-10-07T06:18:35+02:00", "utc": "2003-10-07T04:18:35Z", "ms": 1065500315233.0466 }, "end": { "local": "2003-10-08T06:54:25+02:00", "utc": "2003-10-08T04:54:25Z", "ms": 1065588864833.3881 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-10-07", "window": { "start": { "local": "2003-10-07T17:33:44+02:00", "utc": "2003-10-07T15:33:44Z", "ms": 1065540824460.8733 }, "end": { "local": "2003-10-07T19:12:14+02:00", "utc": "2003-10-07T17:12:14Z", "ms": 1065546733515.522 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "2003-10-08", "window": { "start": { "local": "2003-10-08T17:32:34+02:00", "utc": "2003-10-08T15:32:34Z", "ms": 1065627153878.2504 }, "end": { "local": "2003-10-08T19:11:17+02:00", "utc": "2003-10-08T17:11:17Z", "ms": 1065633077209.9819 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:19 on Tue 7 Oct to 06:54 on Wed 8 Oct.", "fact": "2003-10-07T04:18:35Z → 2003-10-08T04:54:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:34–19:12 on the 7th, 17:33–19:11 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 98 of 98 minutes on the 7th and 0 of 99 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 38289 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Tuesday 7 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": "2003-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-07", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Tuesday 7 October. Trayodaśī runs from 06:19 on Tue 7 Oct to 06:54 on Wed 8 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-10-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3626, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-10-13T16:14:48+02:00", "utc": "2003-10-13T14:14:48Z", "ms": 1066054487590.8445 }, "end": { "local": "2003-10-14T18:56:35+02:00", "utc": "2003-10-14T16:56:35Z", "ms": 1066150594784.0753 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-13T16:14:48+02:00", "utc": "2003-10-13T14:14:48Z", "ms": 1066054487590.8445 }, "end": { "local": "2003-10-14T18:56:35+02:00", "utc": "2003-10-14T16:56:35Z", "ms": 1066150594784.0753 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-10-13", "window": { "start": { "local": "2003-10-13T19:20:05+02:00", "utc": "2003-10-13T17:20:05Z", "ms": 1066065605411.2588 }, "end": { "local": "2003-10-13T19:20:05+02:00", "utc": "2003-10-13T17:20:05Z", "ms": 1066065605411.2588 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-10-14", "window": { "start": { "local": "2003-10-14T19:57:00+02:00", "utc": "2003-10-14T17:57:00Z", "ms": 1066154220376.0753 }, "end": { "local": "2003-10-14T19:57:00+02:00", "utc": "2003-10-14T17:57:00Z", "ms": 1066154220376.0753 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:15 on Mon 13 Oct to 18:57 on Tue 14 Oct.", "fact": "2003-10-13T14:14:48Z → 2003-10-14T16:56:35Z" }, { "step": "kaala", "text": "Moonrise is at 19:20 on the 13th and 19:57 on the 14th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3626 s" }, { "step": "ruling", "text": "Karaka Caturthī, Cairo, 2003: Monday 13 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "karaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-13", "confidence": "determinate" } ], "quote": "In Cairo, Karaka Caturthī (Karwa Chauth) 2003 falls on Monday 13 October. Caturthī runs from 16:15 on Mon 13 Oct to 18:57 on Tue 14 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-10-13", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3626, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-10-13T16:14:48+02:00", "utc": "2003-10-13T14:14:48Z", "ms": 1066054487590.8445 }, "end": { "local": "2003-10-14T18:56:35+02:00", "utc": "2003-10-14T16:56:35Z", "ms": 1066150594784.0753 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-13T16:14:48+02:00", "utc": "2003-10-13T14:14:48Z", "ms": 1066054487590.8445 }, "end": { "local": "2003-10-14T18:56:35+02:00", "utc": "2003-10-14T16:56:35Z", "ms": 1066150594784.0753 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-10-13", "window": { "start": { "local": "2003-10-13T19:20:05+02:00", "utc": "2003-10-13T17:20:05Z", "ms": 1066065605411.2588 }, "end": { "local": "2003-10-13T19:20:05+02:00", "utc": "2003-10-13T17:20:05Z", "ms": 1066065605411.2588 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-10-14", "window": { "start": { "local": "2003-10-14T19:57:00+02:00", "utc": "2003-10-14T17:57:00Z", "ms": 1066154220376.0753 }, "end": { "local": "2003-10-14T19:57:00+02:00", "utc": "2003-10-14T17:57:00Z", "ms": 1066154220376.0753 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:15 on Mon 13 Oct to 18:57 on Tue 14 Oct.", "fact": "2003-10-13T14:14:48Z → 2003-10-14T16:56:35Z" }, { "step": "kaala", "text": "Moonrise is at 19:20 on the 13th and 19:57 on the 14th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3626 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Monday 13 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-13", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Monday 13 October. Caturthī runs from 16:15 on Mon 13 Oct to 18:57 on Tue 14 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-10-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12607, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-10-18T01:49:18+02:00", "utc": "2003-10-17T23:49:18Z", "ms": 1066434558166.1232 }, "end": { "local": "2003-10-19T03:02:14+02:00", "utc": "2003-10-19T01:02:14Z", "ms": 1066525333555.2035 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-18T01:49:18+02:00", "utc": "2003-10-17T23:49:18Z", "ms": 1066434558166.1232 }, "end": { "local": "2003-10-19T03:02:14+02:00", "utc": "2003-10-19T01:02:14Z", "ms": 1066525333555.2035 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-10-17", "window": { "start": { "local": "2003-10-17T22:19:11+02:00", "utc": "2003-10-17T20:19:11Z", "ms": 1066421950718.3308 }, "end": { "local": "2003-10-17T22:19:11+02:00", "utc": "2003-10-17T20:19:11Z", "ms": 1066421950718.3308 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-10-18", "window": { "start": { "local": "2003-10-18T23:16:39+02:00", "utc": "2003-10-18T21:16:39Z", "ms": 1066511798704.8143 }, "end": { "local": "2003-10-18T23:16:39+02:00", "utc": "2003-10-18T21:16:39Z", "ms": 1066511798704.8143 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:49 on Sat 18 Oct to 03:02 on Sun 19 Oct.", "fact": "2003-10-17T23:49:18Z → 2003-10-19T01:02:14Z" }, { "step": "kaala", "text": "Moonrise is at 22:19 on the 17th and 23:17 on the 18th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 17th and is on the 18th.", "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 12607 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Cairo, 2003: Saturday 18 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": "2003-10-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-18", "confidence": "determinate" } ], "quote": "In Cairo, Ahoyī Aṣṭamī 2003 falls on Saturday 18 October. Aṣṭamī runs from 01:49 on Sat 18 Oct to 03:02 on Sun 19 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-10-21", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10610, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-10-21T03:03:55+02:00", "utc": "2003-10-21T01:03:55Z", "ms": 1066698235226.3032 }, "end": { "local": "2003-10-22T01:50:42+02:00", "utc": "2003-10-21T23:50:42Z", "ms": 1066780242237.7292 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-21T03:03:55+02:00", "utc": "2003-10-21T01:03:55Z", "ms": 1066698235226.3032 }, "end": { "local": "2003-10-22T01:50:42+02:00", "utc": "2003-10-21T23:50:42Z", "ms": 1066780242237.7292 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-10-21", "window": { "start": { "local": "2003-10-21T06:00:45+02:00", "utc": "2003-10-21T04:00:45Z", "ms": 1066708845428.7875 }, "end": { "local": "2003-10-21T06:00:45+02:00", "utc": "2003-10-21T04:00:45Z", "ms": 1066708845428.7875 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-10-22", "window": { "start": { "local": "2003-10-22T06:01:27+02:00", "utc": "2003-10-22T04:01:27Z", "ms": 1066795286963.6201 }, "end": { "local": "2003-10-22T06:01:27+02:00", "utc": "2003-10-22T04:01:27Z", "ms": 1066795286963.6201 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:04 on Tue 21 Oct to 01:51 on Wed 22 Oct.", "fact": "2003-10-21T01:03:55Z → 2003-10-21T23:50:42Z" }, { "step": "kaala", "text": "Sunrise is at 06:01 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 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 10610 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Cairo, 2003: Tuesday 21 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": "2003-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-21", "confidence": "determinate" } ], "quote": "In Cairo, Ramā Ekādaśī 2003 falls on Tuesday 21 October. Ekādaśī runs from 03:04 on Tue 21 Oct to 01:51 on Wed 22 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-10-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17624, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2003-10-22T01:50:42+02:00", "utc": "2003-10-21T23:50:42Z", "ms": 1066780242237.7292 }, "end": { "local": "2003-10-22T23:52:58+02:00", "utc": "2003-10-22T21:52:58Z", "ms": 1066859578086.8937 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-22T01:50:42+02:00", "utc": "2003-10-21T23:50:42Z", "ms": 1066780242237.7292 }, "end": { "local": "2003-10-22T23:52:58+02:00", "utc": "2003-10-22T21:52:58Z", "ms": 1066859578086.8937 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-10-21", "window": { "start": { "local": "2003-10-21T17:18:16+02:00", "utc": "2003-10-21T15:18:16Z", "ms": 1066749495577.0015 }, "end": { "local": "2003-10-21T19:00:01+02:00", "utc": "2003-10-21T17:00:01Z", "ms": 1066755601095.2173 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "2003-10-22", "window": { "start": { "local": "2003-10-22T17:17:15+02:00", "utc": "2003-10-22T15:17:15Z", "ms": 1066835835164.7874 }, "end": { "local": "2003-10-22T18:59:14+02:00", "utc": "2003-10-22T16:59:14Z", "ms": 1066841954332.9281 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 01:51 on Wed 22 Oct to 23:53 on Wed 22 Oct.", "fact": "2003-10-21T23:50:42Z → 2003-10-22T21:52:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:18–19:00 on the 21st, 17:17–18:59 on the 22nd.", "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 102 minutes on the 21st and 102 of 102 on the 22nd.", "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 17624 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Cairo, 2003: Wednesday 22 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": "2003-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-22", "confidence": "determinate" } ], "quote": "In Cairo, Govatsa Dvādaśī (Vasu Baras) 2003 falls on Wednesday 22 October. Dvādaśī runs from 01:51 on Wed 22 Oct to 23:53 on Wed 22 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8356, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-10-22T23:52:58+02:00", "utc": "2003-10-22T21:52:58Z", "ms": 1066859578086.8937 }, "end": { "local": "2003-10-23T21:17:45+02:00", "utc": "2003-10-23T19:17:45Z", "ms": 1066936664567.6106 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-22T23:52:58+02:00", "utc": "2003-10-22T21:52:58Z", "ms": 1066859578086.8937 }, "end": { "local": "2003-10-23T21:17:45+02:00", "utc": "2003-10-23T19:17:45Z", "ms": 1066936664567.6106 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-10-22", "window": { "start": { "local": "2003-10-22T17:17:15+02:00", "utc": "2003-10-22T15:17:15Z", "ms": 1066835835164.7874 }, "end": { "local": "2003-10-22T18:59:14+02:00", "utc": "2003-10-22T16:59:14Z", "ms": 1066841954332.9281 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "2003-10-23", "window": { "start": { "local": "2003-10-23T17:16:16+02:00", "utc": "2003-10-23T15:16:16Z", "ms": 1066922175698.6891 }, "end": { "local": "2003-10-23T18:58:28+02:00", "utc": "2003-10-23T16:58:28Z", "ms": 1066928308447.3025 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:53 on Wed 22 Oct to 21:18 on Thu 23 Oct.", "fact": "2003-10-22T21:52:58Z → 2003-10-23T19:17:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:17–18:59 on the 22nd, 17:16–18:58 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 102 minutes on the 22nd and 102 of 102 on the 23rd.", "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 8356 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Cairo, 2003: Thursday 23 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-23", "confidence": "determinate" } ], "quote": "In Cairo, Yama Dīpadāna 2003 falls on Thursday 23 October. Trayodaśī runs from 23:53 on Wed 22 Oct to 21:18 on Thu 23 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-10-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8356, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-10-22T23:52:58+02:00", "utc": "2003-10-22T21:52:58Z", "ms": 1066859578086.8937 }, "end": { "local": "2003-10-23T21:17:45+02:00", "utc": "2003-10-23T19:17:45Z", "ms": 1066936664567.6106 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-22T23:52:58+02:00", "utc": "2003-10-22T21:52:58Z", "ms": 1066859578086.8937 }, "end": { "local": "2003-10-23T21:17:45+02:00", "utc": "2003-10-23T19:17:45Z", "ms": 1066936664567.6106 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-10-22", "window": { "start": { "local": "2003-10-22T17:17:15+02:00", "utc": "2003-10-22T15:17:15Z", "ms": 1066835835164.7874 }, "end": { "local": "2003-10-22T18:59:14+02:00", "utc": "2003-10-22T16:59:14Z", "ms": 1066841954332.9281 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "2003-10-23", "window": { "start": { "local": "2003-10-23T17:16:16+02:00", "utc": "2003-10-23T15:16:16Z", "ms": 1066922175698.6891 }, "end": { "local": "2003-10-23T18:58:28+02:00", "utc": "2003-10-23T16:58:28Z", "ms": 1066928308447.3025 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:53 on Wed 22 Oct to 21:18 on Thu 23 Oct.", "fact": "2003-10-22T21:52:58Z → 2003-10-23T19:17:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:17–18:59 on the 22nd, 17:16–18:58 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 102 minutes on the 22nd and 102 of 102 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 8356 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Thursday 23 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": "2003-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-23", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Thursday 23 October. Trayodaśī runs from 23:53 on Wed 22 Oct to 21:18 on Thu 23 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-10-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-10-23", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7069, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-10-23T21:17:45+02:00", "utc": "2003-10-23T19:17:45Z", "ms": 1066936664567.6106 }, "end": { "local": "2003-10-24T18:13:41+02:00", "utc": "2003-10-24T16:13:41Z", "ms": 1067012020874.5662 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-23T21:17:45+02:00", "utc": "2003-10-23T19:17:45Z", "ms": 1066936664567.6106 }, "end": { "local": "2003-10-24T18:13:41+02:00", "utc": "2003-10-24T16:13:41Z", "ms": 1067012020874.5662 } }, "kaala": "nishita", "days": [ { "local_date": "2003-10-23", "window": { "start": { "local": "2003-10-23T23:15:34+02:00", "utc": "2003-10-23T21:15:34Z", "ms": 1066943733505.9895 }, "end": { "local": "2003-10-24T00:03:34+02:00", "utc": "2003-10-23T22:03:34Z", "ms": 1066946613505.9895 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-10-24", "window": { "start": { "local": "2003-10-24T23:15:26+02:00", "utc": "2003-10-24T21:15:26Z", "ms": 1067030125663.4178 }, "end": { "local": "2003-10-25T00:03:26+02:00", "utc": "2003-10-24T22:03:26Z", "ms": 1067033005663.4178 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:18 on Thu 23 Oct to 18:14 on Fri 24 Oct.", "fact": "2003-10-23T19:17:45Z → 2003-10-24T16:13:41Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:16–00:04 on the 23rd, 23:15–00:03 on the 24th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7069 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Thursday 23 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": "2003-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-23", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Thursday 23 October. Caturdaśī runs from 21:18 on Thu 23 Oct to 18:14 on Fri 24 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-10-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25374, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-10-23T21:17:45+02:00", "utc": "2003-10-23T19:17:45Z", "ms": 1066936664567.6106 }, "end": { "local": "2003-10-24T18:13:41+02:00", "utc": "2003-10-24T16:13:41Z", "ms": 1067012020874.5662 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-23T21:17:45+02:00", "utc": "2003-10-23T19:17:45Z", "ms": 1066936664567.6106 }, "end": { "local": "2003-10-24T18:13:41+02:00", "utc": "2003-10-24T16:13:41Z", "ms": 1067012020874.5662 } }, "kaala": "arunodaya", "days": [ { "local_date": "2003-10-24", "window": { "start": { "local": "2003-10-24T04:20:39+02:00", "utc": "2003-10-24T02:20:39Z", "ms": 1066962038564.6766 }, "end": { "local": "2003-10-24T06:02:51+02:00", "utc": "2003-10-24T04:02:51Z", "ms": 1066968171313.29 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "2003-10-25", "window": { "start": { "local": "2003-10-25T04:21:08+02:00", "utc": "2003-10-25T02:21:08Z", "ms": 1067048467866.253 }, "end": { "local": "2003-10-25T06:03:34+02:00", "utc": "2003-10-25T04:03:34Z", "ms": 1067054614121.8295 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:18 on Thu 23 Oct to 18:14 on Fri 24 Oct.", "fact": "2003-10-23T19:17:45Z → 2003-10-24T16:13:41Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:21–06:03 on the 24th, 04:21–06:04 on the 25th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 102 of 102 minutes on the 24th and 0 of 102 on the 25th.", "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 25374 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Cairo, 2003: Friday 24 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-24", "confidence": "determinate" } ], "quote": "In Cairo, Naraka Caturdaśī (Choti Diwali) 2003 falls on Friday 24 October. Caturdaśī runs from 21:18 on Thu 23 Oct to 18:14 on Fri 24 Oct and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2643, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2003-10-24T18:13:41+02:00", "utc": "2003-10-24T16:13:41Z", "ms": 1067012020874.5662 }, "end": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-24T18:13:41+02:00", "utc": "2003-10-24T16:13:41Z", "ms": 1067012020874.5662 }, "end": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-10-24", "window": { "start": { "local": "2003-10-24T17:15:17+02:00", "utc": "2003-10-24T15:15:17Z", "ms": 1067008517205.0062 }, "end": { "local": "2003-10-24T18:57:43+02:00", "utc": "2003-10-24T16:57:43Z", "ms": 1067014663460.5826 } }, "covered_min": 44, "window_min": 102, "qualifies": true }, { "local_date": "2003-10-25", "window": { "start": { "local": "2003-10-25T17:14:20+02:00", "utc": "2003-10-25T15:14:20Z", "ms": 1067094859709.0154 }, "end": { "local": "2003-10-25T18:56:59+02:00", "utc": "2003-10-25T16:56:59Z", "ms": 1067101019393.8751 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 18:14 on Fri 24 Oct to 14:50 on Sat 25 Oct.", "fact": "2003-10-24T16:13:41Z → 2003-10-25T12:50:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:15–18:58 on the 24th, 17:14–18:57 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 44 of 102 minutes on the 24th and 0 of 103 on the 25th.", "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 2643 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Cairo, 2003: Friday 24 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-24", "confidence": "determinate" } ], "quote": "In Cairo, Lakṣmī Pūjā (Diwali) 2003 falls on Friday 24 October. Amāvasyā runs from 18:14 on Fri 24 Oct to 14:50 on Sat 25 Oct and covers 44 of 102 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18105, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2003-10-24T18:13:41+02:00", "utc": "2003-10-24T16:13:41Z", "ms": 1067012020874.5662 }, "end": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-24T18:13:41+02:00", "utc": "2003-10-24T16:13:41Z", "ms": 1067012020874.5662 }, "end": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 } }, "kaala": "nishita", "days": [ { "local_date": "2003-10-24", "window": { "start": { "local": "2003-10-24T23:15:26+02:00", "utc": "2003-10-24T21:15:26Z", "ms": 1067030125663.4178 }, "end": { "local": "2003-10-25T00:03:26+02:00", "utc": "2003-10-24T22:03:26Z", "ms": 1067033005663.4178 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-10-25", "window": { "start": { "local": "2003-10-25T23:15:19+02:00", "utc": "2003-10-25T21:15:19Z", "ms": 1067116518527.2394 }, "end": { "local": "2003-10-26T00:03:19+02:00", "utc": "2003-10-25T22:03:19Z", "ms": 1067119398527.2394 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 18:14 on Fri 24 Oct to 14:50 on Sat 25 Oct.", "fact": "2003-10-24T16:13:41Z → 2003-10-25T12:50:18Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:15–00:03 on the 24th, 23:15–00:03 on the 25th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "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 18105 s" }, { "step": "ruling", "text": "Kālī Pūjā, Cairo, 2003: Friday 24 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-24", "confidence": "determinate" } ], "quote": "In Cairo, Kālī Pūjā 2003 falls on Friday 24 October. Amāvasyā runs from 18:14 on Fri 24 Oct to 14:50 on Sat 25 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8641, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 }, "end": { "local": "2003-10-26T11:17:27+02:00", "utc": "2003-10-26T09:17:27Z", "ms": 1067159847014.2401 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 }, "end": { "local": "2003-10-26T11:17:27+02:00", "utc": "2003-10-26T09:17:27Z", "ms": 1067159847014.2401 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-10-25", "window": { "start": { "local": "2003-10-25T17:14:20+02:00", "utc": "2003-10-25T15:14:20Z", "ms": 1067094859709.0154 }, "end": { "local": "2003-10-25T18:56:59+02:00", "utc": "2003-10-25T16:56:59Z", "ms": 1067101019393.8751 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "2003-10-26", "window": { "start": { "local": "2003-10-26T17:13:23+02:00", "utc": "2003-10-26T15:13:23Z", "ms": 1067181203235.2408 }, "end": { "local": "2003-10-26T18:56:16+02:00", "utc": "2003-10-26T16:56:16Z", "ms": 1067187376267.4226 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 14:50 on Sat 25 Oct to 11:17 on Sun 26 Oct.", "fact": "2003-10-25T12:50:18Z → 2003-10-26T09:17:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:14–18:57 on the 25th, 17:13–18:56 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 103 of 103 minutes on the 25th and 0 of 103 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8641 s" }, { "step": "ruling", "text": "Bali Pūjā, Cairo, 2003: Saturday 25 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-25", "confidence": "determinate" } ], "quote": "In Cairo, Bali Pūjā 2003 falls on Saturday 25 October. Pratipadā runs from 14:50 on Sat 25 Oct to 11:17 on Sun 26 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-26", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 157, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 }, "end": { "local": "2003-10-26T11:17:27+02:00", "utc": "2003-10-26T09:17:27Z", "ms": 1067159847014.2401 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 }, "end": { "local": "2003-10-26T11:17:27+02:00", "utc": "2003-10-26T09:17:27Z", "ms": 1067159847014.2401 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-10-25", "window": { "start": { "local": "2003-10-25T11:14:57+02:00", "utc": "2003-10-25T09:14:57Z", "ms": 1067073296915.4224 }, "end": { "local": "2003-10-25T12:02:57+02:00", "utc": "2003-10-25T10:02:57Z", "ms": 1067076176915.4224 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-10-26", "window": { "start": { "local": "2003-10-26T11:14:50+02:00", "utc": "2003-10-26T09:14:50Z", "ms": 1067159690290.352 }, "end": { "local": "2003-10-26T12:02:50+02:00", "utc": "2003-10-26T10:02:50Z", "ms": 1067162570290.352 } }, "covered_min": 3, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 14:50 on Sat 25 Oct to 11:17 on Sun 26 Oct.", "fact": "2003-10-25T12:50:18Z → 2003-10-26T09:17:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 25th, 11:15–12:03 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 3 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 157 s < 300 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Cairo, 2003: Sunday 26 October.", "fact": "confidence: boundary (margin)" } ], "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": "2003-10-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-26", "confidence": "determinate" } ], "quote": "In Cairo, Govardhana Pūjā 2003 falls on Sunday 26 October. Pratipadā runs from 14:50 on Sat 25 Oct to 11:17 on Sun 26 Oct and covers 3 of 48 minutes of madhyāhna that midday. It is 2 min 37 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-26", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 157, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2003-10-26T11:17:27+02:00", "utc": "2003-10-26T09:17:27Z", "ms": 1067159847014.2401 }, "end": { "local": "2003-10-27T07:44:49+02:00", "utc": "2003-10-27T05:44:49Z", "ms": 1067233488847.2393 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-26T11:17:27+02:00", "utc": "2003-10-26T09:17:27Z", "ms": 1067159847014.2401 }, "end": { "local": "2003-10-27T07:44:49+02:00", "utc": "2003-10-27T05:44:49Z", "ms": 1067233488847.2393 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-10-26", "window": { "start": { "local": "2003-10-26T11:14:50+02:00", "utc": "2003-10-26T09:14:50Z", "ms": 1067159690290.352 }, "end": { "local": "2003-10-26T12:02:50+02:00", "utc": "2003-10-26T10:02:50Z", "ms": 1067162570290.352 } }, "covered_min": 45, "window_min": 48, "qualifies": true }, { "local_date": "2003-10-27", "window": { "start": { "local": "2003-10-27T11:14:44+02:00", "utc": "2003-10-27T09:14:44Z", "ms": 1067246084392.2781 }, "end": { "local": "2003-10-27T12:02:44+02:00", "utc": "2003-10-27T10:02:44Z", "ms": 1067248964392.2781 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 11:17 on Sun 26 Oct to 07:45 on Mon 27 Oct.", "fact": "2003-10-26T09:17:27Z → 2003-10-27T05:44:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 26th, 11:15–12:03 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 45 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 157 s < 300 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Cairo, 2003: Sunday 26 October.", "fact": "confidence: boundary (margin)" } ], "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": "2003-10-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-26", "confidence": "determinate" } ], "quote": "In Cairo, Yama Dvitīyā (Bhai Dooj) 2003 falls on Sunday 26 October. Dvitīyā runs from 11:17 on Sun 26 Oct to 07:45 on Mon 27 Oct and covers 45 of 48 minutes of madhyāhna that midday. It is 2 min 37 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5408, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 }, "end": { "local": "2003-10-26T11:17:27+02:00", "utc": "2003-10-26T09:17:27Z", "ms": 1067159847014.2401 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-25T14:50:18+02:00", "utc": "2003-10-25T12:50:18Z", "ms": 1067086218493.7587 }, "end": { "local": "2003-10-26T11:17:27+02:00", "utc": "2003-10-26T09:17:27Z", "ms": 1067159847014.2401 } }, "kaala": "purvahna", "days": [ { "local_date": "2003-10-25", "window": { "start": { "local": "2003-10-25T06:03:34+02:00", "utc": "2003-10-25T04:03:34Z", "ms": 1067054614121.8295 }, "end": { "local": "2003-10-25T09:47:09+02:00", "utc": "2003-10-25T07:47:09Z", "ms": 1067068029317.5581 } }, "covered_min": 0, "window_min": 224, "qualifies": false }, { "local_date": "2003-10-26", "window": { "start": { "local": "2003-10-26T06:04:17+02:00", "utc": "2003-10-26T04:04:17Z", "ms": 1067141057345.4634 }, "end": { "local": "2003-10-26T09:47:19+02:00", "utc": "2003-10-26T07:47:19Z", "ms": 1067154439308.7225 } }, "covered_min": 223, "window_min": 223, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 14:50 on Sat 25 Oct to 11:17 on Sun 26 Oct.", "fact": "2003-10-25T12:50:18Z → 2003-10-26T09:17:27Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:04–09:47 on the 25th, 06:04–09:47 on the 26th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 0 of 224 minutes on the 25th and 223 of 223 on the 26th.", "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 5408 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Cairo, 2003: Sunday 26 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-26", "confidence": "determinate" } ], "quote": "In Cairo, Dyūta Pratipad 2003 falls on Sunday 26 October. Pratipadā runs from 14:50 on Sat 25 Oct to 11:17 on Sun 26 Oct and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24780, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-10-28T04:21:39+02:00", "utc": "2003-10-28T02:21:39Z", "ms": 1067307699371.4147 }, "end": { "local": "2003-10-29T01:16:29+02:00", "utc": "2003-10-28T23:16:29Z", "ms": 1067382989116.9473 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-28T04:21:39+02:00", "utc": "2003-10-28T02:21:39Z", "ms": 1067307699371.4147 }, "end": { "local": "2003-10-29T01:16:29+02:00", "utc": "2003-10-28T23:16:29Z", "ms": 1067382989116.9473 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-10-28", "window": { "start": { "local": "2003-10-28T11:14:39+02:00", "utc": "2003-10-28T09:14:39Z", "ms": 1067332479229.1348 }, "end": { "local": "2003-10-28T12:02:39+02:00", "utc": "2003-10-28T10:02:39Z", "ms": 1067335359229.1348 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-10-29", "window": { "start": { "local": "2003-10-29T11:14:35+02:00", "utc": "2003-10-29T09:14:35Z", "ms": 1067418874808.9557 }, "end": { "local": "2003-10-29T12:02:35+02:00", "utc": "2003-10-29T10:02:35Z", "ms": 1067421754808.9557 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:22 on Tue 28 Oct to 01:16 on Wed 29 Oct.", "fact": "2003-10-28T02:21:39Z → 2003-10-28T23:16:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 28th, 11:15–12:03 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24780 s" }, { "step": "ruling", "text": "Nāga Caturthī, Cairo, 2003: Tuesday 28 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-28", "confidence": "determinate" } ], "quote": "In Cairo, Nāga Caturthī 2003 falls on Tuesday 28 October. Caturthī runs from 04:22 on Tue 28 Oct to 01:16 on Wed 29 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-10-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24780, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-10-28T04:21:39+02:00", "utc": "2003-10-28T02:21:39Z", "ms": 1067307699371.4147 }, "end": { "local": "2003-10-29T01:16:29+02:00", "utc": "2003-10-28T23:16:29Z", "ms": 1067382989116.9473 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-28T04:21:39+02:00", "utc": "2003-10-28T02:21:39Z", "ms": 1067307699371.4147 }, "end": { "local": "2003-10-29T01:16:29+02:00", "utc": "2003-10-28T23:16:29Z", "ms": 1067382989116.9473 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-10-28", "window": { "start": { "local": "2003-10-28T11:14:39+02:00", "utc": "2003-10-28T09:14:39Z", "ms": 1067332479229.1348 }, "end": { "local": "2003-10-28T12:02:39+02:00", "utc": "2003-10-28T10:02:39Z", "ms": 1067335359229.1348 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-10-29", "window": { "start": { "local": "2003-10-29T11:14:35+02:00", "utc": "2003-10-29T09:14:35Z", "ms": 1067418874808.9557 }, "end": { "local": "2003-10-29T12:02:35+02:00", "utc": "2003-10-29T10:02:35Z", "ms": 1067421754808.9557 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:22 on Tue 28 Oct to 01:16 on Wed 29 Oct.", "fact": "2003-10-28T02:21:39Z → 2003-10-28T23:16:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 28th, 11:15–12:03 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24780 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Tuesday 28 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": "2003-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-28", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Tuesday 28 October. Caturthī runs from 04:22 on Tue 28 Oct to 01:16 on Wed 29 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-10-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30363, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2003-10-29T22:36:46+02:00", "utc": "2003-10-29T20:36:46Z", "ms": 1067459805656.0951 }, "end": { "local": "2003-10-30T20:28:35+02:00", "utc": "2003-10-30T18:28:35Z", "ms": 1067538514579.6068 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-29T22:36:46+02:00", "utc": "2003-10-29T20:36:46Z", "ms": 1067459805656.0951 }, "end": { "local": "2003-10-30T20:28:35+02:00", "utc": "2003-10-30T18:28:35Z", "ms": 1067538514579.6068 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-10-29", "window": { "start": { "local": "2003-10-29T11:14:35+02:00", "utc": "2003-10-29T09:14:35Z", "ms": 1067418874808.9557 }, "end": { "local": "2003-10-29T12:02:35+02:00", "utc": "2003-10-29T10:02:35Z", "ms": 1067421754808.9557 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-10-30", "window": { "start": { "local": "2003-10-30T11:14:31+02:00", "utc": "2003-10-30T09:14:31Z", "ms": 1067505271140.2292 }, "end": { "local": "2003-10-30T12:02:31+02:00", "utc": "2003-10-30T10:02:31Z", "ms": 1067508151140.2292 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:37 on Wed 29 Oct to 20:29 on Thu 30 Oct.", "fact": "2003-10-29T20:36:46Z → 2003-10-30T18:28:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 29th, 11:15–12:03 on the 30th.", "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 29th and 48 of 48 on the 30th.", "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 30363 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Cairo, 2003: Thursday 30 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-10-30", "confidence": "determinate" } ], "quote": "In Cairo, Sūrya Ṣaṣṭhī (Chhath) 2003 falls on Thursday 30 October. Ṣaṣṭhī runs from 22:37 on Wed 29 Oct to 20:29 on Thu 30 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21609, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2003-10-31T18:56:21+02:00", "utc": "2003-10-31T16:56:21Z", "ms": 1067619381062.1213 }, "end": { "local": "2003-11-01T18:02:36+02:00", "utc": "2003-11-01T16:02:36Z", "ms": 1067702555552.4103 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-10-31T18:56:21+02:00", "utc": "2003-10-31T16:56:21Z", "ms": 1067619381062.1213 }, "end": { "local": "2003-11-01T18:02:36+02:00", "utc": "2003-11-01T16:02:36Z", "ms": 1067702555552.4103 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-10-31", "window": { "start": { "local": "2003-10-31T11:14:28+02:00", "utc": "2003-10-31T09:14:28Z", "ms": 1067591668232.0428 }, "end": { "local": "2003-10-31T12:02:28+02:00", "utc": "2003-10-31T10:02:28Z", "ms": 1067594548232.0428 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-11-01", "window": { "start": { "local": "2003-11-01T11:14:26+02:00", "utc": "2003-11-01T09:14:26Z", "ms": 1067678066094.008 }, "end": { "local": "2003-11-01T12:02:26+02:00", "utc": "2003-11-01T10:02:26Z", "ms": 1067680946094.008 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:56 on Fri 31 Oct to 18:03 on Sat 1 Nov.", "fact": "2003-10-31T16:56:21Z → 2003-11-01T16:02:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 31st, 11:14–12:02 on the 1st.", "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 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21609 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Cairo, 2003: Saturday 1 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": "2003-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-01", "confidence": "determinate" } ], "quote": "In Cairo, Gopāṣṭamī 2003 falls on Saturday 1 November. Aṣṭamī runs from 18:56 on Fri 31 Oct to 18:03 on Sat 1 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28741, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2003-11-01T18:02:36+02:00", "utc": "2003-11-01T16:02:36Z", "ms": 1067702555552.4103 }, "end": { "local": "2003-11-02T17:47:48+02:00", "utc": "2003-11-02T15:47:48Z", "ms": 1067788068155.8752 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-11-01T18:02:36+02:00", "utc": "2003-11-01T16:02:36Z", "ms": 1067702555552.4103 }, "end": { "local": "2003-11-02T17:47:48+02:00", "utc": "2003-11-02T15:47:48Z", "ms": 1067788068155.8752 } }, "kaala": "purvahna", "days": [ { "local_date": "2003-11-01", "window": { "start": { "local": "2003-11-01T06:08:45+02:00", "utc": "2003-11-01T04:08:45Z", "ms": 1067659724931.6631 }, "end": { "local": "2003-11-01T09:48:32+02:00", "utc": "2003-11-01T07:48:32Z", "ms": 1067672912373.2264 } }, "covered_min": 0, "window_min": 220, "qualifies": false }, { "local_date": "2003-11-02", "window": { "start": { "local": "2003-11-02T06:09:31+02:00", "utc": "2003-11-02T04:09:31Z", "ms": 1067746170821.4813 }, "end": { "local": "2003-11-02T09:48:47+02:00", "utc": "2003-11-02T07:48:47Z", "ms": 1067759326764.5687 } }, "covered_min": 219, "window_min": 219, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 18:03 on Sat 1 Nov to 17:48 on Sun 2 Nov.", "fact": "2003-11-01T16:02:36Z → 2003-11-02T15:47:48Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:09–09:49 on the 1st, 06:10–09:49 on the 2nd.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 0 of 220 minutes on the 1st and 219 of 219 on the 2nd.", "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 28741 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Cairo, 2003: Sunday 2 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": "2003-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-02", "confidence": "determinate" } ], "quote": "In Cairo, Akṣaya Navamī (Amla Navami) 2003 falls on Sunday 2 November. Navamī runs from 18:03 on Sat 1 Nov to 17:48 on Sun 2 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20723, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2003-11-01T18:02:36+02:00", "utc": "2003-11-01T16:02:36Z", "ms": 1067702555552.4103 }, "end": { "local": "2003-11-02T17:47:48+02:00", "utc": "2003-11-02T15:47:48Z", "ms": 1067788068155.8752 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-11-01T18:02:36+02:00", "utc": "2003-11-01T16:02:36Z", "ms": 1067702555552.4103 }, "end": { "local": "2003-11-02T17:47:48+02:00", "utc": "2003-11-02T15:47:48Z", "ms": 1067788068155.8752 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-11-01", "window": { "start": { "local": "2003-11-01T11:14:26+02:00", "utc": "2003-11-01T09:14:26Z", "ms": 1067678066094.008 }, "end": { "local": "2003-11-01T12:02:26+02:00", "utc": "2003-11-01T10:02:26Z", "ms": 1067680946094.008 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-11-02", "window": { "start": { "local": "2003-11-02T11:14:25+02:00", "utc": "2003-11-02T09:14:25Z", "ms": 1067764464736.1123 }, "end": { "local": "2003-11-02T12:02:25+02:00", "utc": "2003-11-02T10:02:25Z", "ms": 1067767344736.1123 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 18:03 on Sat 1 Nov to 17:48 on Sun 2 Nov.", "fact": "2003-11-01T16:02:36Z → 2003-11-02T15:47:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 1st, 11:14–12:02 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20723 s" }, { "step": "ruling", "text": "Durgā Navamī, Cairo, 2003: Sunday 2 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": "2003-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-02", "confidence": "determinate" } ], "quote": "In Cairo, Durgā Navamī 2003 falls on Sunday 2 November. Navamī runs from 18:03 on Sat 1 Nov to 17:48 on Sun 2 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-11-04", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39832, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-11-03T18:10:35+02:00", "utc": "2003-11-03T16:10:35Z", "ms": 1067875835283.9467 }, "end": { "local": "2003-11-04T19:07:59+02:00", "utc": "2003-11-04T17:07:59Z", "ms": 1067965678784.521 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-11-03T18:10:35+02:00", "utc": "2003-11-03T16:10:35Z", "ms": 1067875835283.9467 }, "end": { "local": "2003-11-04T19:07:59+02:00", "utc": "2003-11-04T17:07:59Z", "ms": 1067965678784.521 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-11-04", "window": { "start": { "local": "2003-11-04T06:11:04+02:00", "utc": "2003-11-04T04:11:04Z", "ms": 1067919063636.3021 }, "end": { "local": "2003-11-04T06:11:04+02:00", "utc": "2003-11-04T04:11:04Z", "ms": 1067919063636.3021 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-11-05", "window": { "start": { "local": "2003-11-05T06:11:51+02:00", "utc": "2003-11-05T04:11:51Z", "ms": 1068005510545.299 }, "end": { "local": "2003-11-05T06:11:51+02:00", "utc": "2003-11-05T04:11:51Z", "ms": 1068005510545.299 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:11 on Mon 3 Nov to 19:08 on Tue 4 Nov.", "fact": "2003-11-03T16:10:35Z → 2003-11-04T17:07:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:11 on the 4th and 06:12 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 39832 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Cairo, 2003: Tuesday 4 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": "2003-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-04", "confidence": "determinate" } ], "quote": "In Cairo, Prabodhinī Ekādaśī 2003 falls on Tuesday 4 November. Ekādaśī runs from 18:11 on Mon 3 Nov to 19:08 on Tue 4 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-11-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-11-06", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6352, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-11-05T20:35:53+02:00", "utc": "2003-11-05T18:35:53Z", "ms": 1068057353127.3602 }, "end": { "local": "2003-11-06T22:29:33+02:00", "utc": "2003-11-06T20:29:33Z", "ms": 1068150572608.5312 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-11-05T20:35:53+02:00", "utc": "2003-11-05T18:35:53Z", "ms": 1068057353127.3602 }, "end": { "local": "2003-11-06T22:29:33+02:00", "utc": "2003-11-06T20:29:33Z", "ms": 1068150572608.5312 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-11-05", "window": { "start": { "local": "2003-11-05T17:05:00+02:00", "utc": "2003-11-05T15:05:00Z", "ms": 1068044700343.1023 }, "end": { "local": "2003-11-05T18:50:01+02:00", "utc": "2003-11-05T16:50:01Z", "ms": 1068051001334.3076 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "2003-11-06", "window": { "start": { "local": "2003-11-06T17:04:17+02:00", "utc": "2003-11-06T15:04:17Z", "ms": 1068131056836.0864 }, "end": { "local": "2003-11-06T18:49:30+02:00", "utc": "2003-11-06T16:49:30Z", "ms": 1068137369967.5693 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:36 on Wed 5 Nov to 22:30 on Thu 6 Nov.", "fact": "2003-11-05T18:35:53Z → 2003-11-06T20:29:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:05–18:50 on the 5th, 17:04–18:49 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 105 minutes on the 5th and 105 of 105 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6352 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Thursday 6 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": "2003-11-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-06", "confidence": "determinate" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Thursday 6 November. Trayodaśī runs from 20:36 on Wed 5 Nov to 22:30 on Thu 6 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-11-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28876, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-11-08T00:43:50+02:00", "utc": "2003-11-07T22:43:50Z", "ms": 1068245030084.5391 }, "end": { "local": "2003-11-09T03:13:22+02:00", "utc": "2003-11-09T01:13:22Z", "ms": 1068340401919.6833 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-11-08T00:43:50+02:00", "utc": "2003-11-07T22:43:50Z", "ms": 1068245030084.5391 }, "end": { "local": "2003-11-09T03:13:22+02:00", "utc": "2003-11-09T01:13:22Z", "ms": 1068340401919.6833 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-11-08", "window": { "start": { "local": "2003-11-08T11:14:34+02:00", "utc": "2003-11-08T09:14:34Z", "ms": 1068282873524.4412 }, "end": { "local": "2003-11-08T12:02:34+02:00", "utc": "2003-11-08T10:02:34Z", "ms": 1068285753524.4412 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-11-09", "window": { "start": { "local": "2003-11-09T11:14:38+02:00", "utc": "2003-11-09T09:14:38Z", "ms": 1068369277895.2922 }, "end": { "local": "2003-11-09T12:02:38+02:00", "utc": "2003-11-09T10:02:38Z", "ms": 1068372157895.2922 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:44 on Sat 8 Nov to 03:13 on Sun 9 Nov.", "fact": "2003-11-07T22:43:50Z → 2003-11-09T01:13:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 8th, 11:15–12:03 on the 9th.", "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 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: unstated → only-day · margin 28876 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Cairo, 2003: Saturday 8 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": "2003-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-08", "confidence": "determinate" } ], "quote": "In Cairo, Kārtikī Pūrṇimā 2003 falls on Saturday 8 November. Pūrṇimā runs from 00:44 on Sat 8 Nov to 03:13 on Sun 9 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2456, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-11-08T00:43:50+02:00", "utc": "2003-11-07T22:43:50Z", "ms": 1068245030084.5391 }, "end": { "local": "2003-11-09T03:13:22+02:00", "utc": "2003-11-09T01:13:22Z", "ms": 1068340401919.6833 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2003-11-08T00:43:50+02:00", "utc": "2003-11-07T22:43:50Z", "ms": 1068245030084.5391 }, "end": { "local": "2003-11-09T03:13:22+02:00", "utc": "2003-11-09T01:13:22Z", "ms": 1068340401919.6833 } }, "kaala": "nishita", "days": [ { "local_date": "2003-11-07", "window": { "start": { "local": "2003-11-07T23:14:54+02:00", "utc": "2003-11-07T21:14:54Z", "ms": 1068239693921.1609 }, "end": { "local": "2003-11-08T00:02:54+02:00", "utc": "2003-11-07T22:02:54Z", "ms": 1068242573921.1609 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-11-08", "window": { "start": { "local": "2003-11-08T23:14:58+02:00", "utc": "2003-11-08T21:14:58Z", "ms": 1068326097593.6975 }, "end": { "local": "2003-11-09T00:02:58+02:00", "utc": "2003-11-08T22:02:58Z", "ms": 1068328977593.6975 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:44 on Sat 8 Nov to 03:13 on Sun 9 Nov.", "fact": "2003-11-07T22:43:50Z → 2003-11-09T01:13:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:15–00:03 on the 7th, 23:15–00:03 on the 8th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "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 2456 s" }, { "step": "ruling", "text": "Rāsayātrā, Cairo, 2003: Saturday 8 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": "2003-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-08", "confidence": "determinate" } ], "quote": "In Cairo, Rāsayātrā 2003 falls on Saturday 8 November. Pūrṇimā runs from 00:44 on Sat 8 Nov to 03:13 on Sun 9 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-11-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23780, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-11-12T11:11:33+02:00", "utc": "2003-11-12T09:11:33Z", "ms": 1068628292871.5856 }, "end": { "local": "2003-11-13T13:36:00+02:00", "utc": "2003-11-13T11:36:00Z", "ms": 1068723360029.6647 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-12T11:11:33+02:00", "utc": "2003-11-12T09:11:33Z", "ms": 1068628292871.5856 }, "end": { "local": "2003-11-13T13:36:00+02:00", "utc": "2003-11-13T11:36:00Z", "ms": 1068723360029.6647 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-11-12", "window": { "start": { "local": "2003-11-12T19:21:38+02:00", "utc": "2003-11-12T17:21:38Z", "ms": 1068657697981.0758 }, "end": { "local": "2003-11-12T19:21:38+02:00", "utc": "2003-11-12T17:21:38Z", "ms": 1068657697981.0758 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-11-13", "window": { "start": { "local": "2003-11-13T20:12:20+02:00", "utc": "2003-11-13T18:12:20Z", "ms": 1068747140050.1306 }, "end": { "local": "2003-11-13T20:12:20+02:00", "utc": "2003-11-13T18:12:20Z", "ms": 1068747140050.1306 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:12 on Wed 12 Nov to 13:36 on Thu 13 Nov.", "fact": "2003-11-12T09:11:33Z → 2003-11-13T11:36:00Z" }, { "step": "kaala", "text": "Moonrise is at 19:22 on the 12th and 20:12 on the 13th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23780 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Wednesday 12 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": "2003-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-12", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Wednesday 12 November. Caturthī runs from 11:12 on Wed 12 Nov to 13:36 on Thu 13 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-11-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-11-20", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27948, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-11-19T16:15:10+02:00", "utc": "2003-11-19T14:15:10Z", "ms": 1069251310419.0679 }, "end": { "local": "2003-11-20T14:09:53+02:00", "utc": "2003-11-20T12:09:53Z", "ms": 1069330193457.7513 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-19T16:15:10+02:00", "utc": "2003-11-19T14:15:10Z", "ms": 1069251310419.0679 }, "end": { "local": "2003-11-20T14:09:53+02:00", "utc": "2003-11-20T12:09:53Z", "ms": 1069330193457.7513 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-11-19", "window": { "start": { "local": "2003-11-19T06:23:15+02:00", "utc": "2003-11-19T04:23:15Z", "ms": 1069215795051.168 }, "end": { "local": "2003-11-19T06:23:15+02:00", "utc": "2003-11-19T04:23:15Z", "ms": 1069215795051.168 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-11-20", "window": { "start": { "local": "2003-11-20T06:24:05+02:00", "utc": "2003-11-20T04:24:05Z", "ms": 1069302245176.6829 }, "end": { "local": "2003-11-20T06:24:05+02:00", "utc": "2003-11-20T04:24:05Z", "ms": 1069302245176.6829 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:15 on Wed 19 Nov to 14:10 on Thu 20 Nov.", "fact": "2003-11-19T14:15:10Z → 2003-11-20T12:09:53Z" }, { "step": "kaala", "text": "Sunrise is at 06:23 on the 19th and 06:24 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 27948 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Cairo, 2003: Thursday 20 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": "2003-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-20", "confidence": "determinate" } ], "quote": "In Cairo, Utpannā Ekādaśī 2003 falls on Thursday 20 November. Ekādaśī runs from 16:15 on Wed 19 Nov to 14:10 on Thu 20 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-11-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-11-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19729, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-11-21T11:27:31+02:00", "utc": "2003-11-21T09:27:31Z", "ms": 1069406850667.7955 }, "end": { "local": "2003-11-22T08:15:33+02:00", "utc": "2003-11-22T06:15:33Z", "ms": 1069481732921.2634 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-21T11:27:31+02:00", "utc": "2003-11-21T09:27:31Z", "ms": 1069406850667.7955 }, "end": { "local": "2003-11-22T08:15:33+02:00", "utc": "2003-11-22T06:15:33Z", "ms": 1069481732921.2634 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-11-21", "window": { "start": { "local": "2003-11-21T16:56:19+02:00", "utc": "2003-11-21T14:56:19Z", "ms": 1069426579406.6534 }, "end": { "local": "2003-11-21T18:44:15+02:00", "utc": "2003-11-21T16:44:15Z", "ms": 1069433054880.8281 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "2003-11-22", "window": { "start": { "local": "2003-11-22T16:56:00+02:00", "utc": "2003-11-22T14:56:00Z", "ms": 1069512960242.528 }, "end": { "local": "2003-11-22T18:44:05+02:00", "utc": "2003-11-22T16:44:05Z", "ms": 1069519444950.2184 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:28 on Fri 21 Nov to 08:16 on Sat 22 Nov.", "fact": "2003-11-21T09:27:31Z → 2003-11-22T06:15:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:56–18:44 on the 21st, 16:56–18:44 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 108 of 108 minutes on the 21st and 0 of 108 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 19729 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Friday 21 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": "2003-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-21", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Friday 21 November. Trayodaśī runs from 11:28 on Fri 21 Nov to 08:16 on Sat 22 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-11-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-11-22", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16651, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-11-22T08:15:33+02:00", "utc": "2003-11-22T06:15:33Z", "ms": 1069481732921.2634 }, "end": { "local": "2003-11-23T04:42:49+02:00", "utc": "2003-11-23T02:42:49Z", "ms": 1069555368805.3325 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-22T08:15:33+02:00", "utc": "2003-11-22T06:15:33Z", "ms": 1069481732921.2634 }, "end": { "local": "2003-11-23T04:42:49+02:00", "utc": "2003-11-23T02:42:49Z", "ms": 1069555368805.3325 } }, "kaala": "nishita", "days": [ { "local_date": "2003-11-21", "window": { "start": { "local": "2003-11-21T23:17:02+02:00", "utc": "2003-11-21T21:17:02Z", "ms": 1069449422434.8086 }, "end": { "local": "2003-11-22T00:05:02+02:00", "utc": "2003-11-21T22:05:02Z", "ms": 1069452302434.8086 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-11-22", "window": { "start": { "local": "2003-11-22T23:17:18+02:00", "utc": "2003-11-22T21:17:18Z", "ms": 1069535837896.3672 }, "end": { "local": "2003-11-23T00:05:18+02:00", "utc": "2003-11-22T22:05:18Z", "ms": 1069538717896.3672 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:16 on Sat 22 Nov to 04:43 on Sun 23 Nov.", "fact": "2003-11-22T06:15:33Z → 2003-11-23T02:42:49Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:17–00:05 on the 21st, 23:17–00:05 on the 22nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16651 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Saturday 22 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": "2003-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-22", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Saturday 22 November. Caturdaśī runs from 08:16 on Sat 22 Nov to 04:43 on Sun 23 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-11-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 957, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2003-11-27T11:34:19+02:00", "utc": "2003-11-27T09:34:19Z", "ms": 1069925659075.698 }, "end": { "local": "2003-11-28T09:23:42+02:00", "utc": "2003-11-28T07:23:42Z", "ms": 1070004221643.8213 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-27T11:34:19+02:00", "utc": "2003-11-27T09:34:19Z", "ms": 1069925659075.698 }, "end": { "local": "2003-11-28T09:23:42+02:00", "utc": "2003-11-28T07:23:42Z", "ms": 1070004221643.8213 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-11-27", "window": { "start": { "local": "2003-11-27T11:18:22+02:00", "utc": "2003-11-27T09:18:22Z", "ms": 1069924702084.0247 }, "end": { "local": "2003-11-27T12:06:22+02:00", "utc": "2003-11-27T10:06:22Z", "ms": 1069927582084.0247 } }, "covered_min": 32, "window_min": 48, "qualifies": true }, { "local_date": "2003-11-28", "window": { "start": { "local": "2003-11-28T11:18:42+02:00", "utc": "2003-11-28T09:18:42Z", "ms": 1070011122154.5925 }, "end": { "local": "2003-11-28T12:06:42+02:00", "utc": "2003-11-28T10:06:42Z", "ms": 1070014002154.5925 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 11:34 on Thu 27 Nov to 09:24 on Fri 28 Nov.", "fact": "2003-11-27T09:34:19Z → 2003-11-28T07:23:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 27th, 11:19–12:07 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 32 of 48 minutes on the 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 957 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Cairo, 2003: Thursday 27 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami-margashirsha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (2nd) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-27", "confidence": "determinate" } ], "quote": "In Cairo, Nāga Pañcamī (Mārgaśīrṣa) 2003 falls on Thursday 27 November. Pañcamī runs from 11:34 on Thu 27 Nov to 09:24 on Fri 28 Nov and covers 32 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-11-27", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 957, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-11-26T14:22:00+02:00", "utc": "2003-11-26T12:22:00Z", "ms": 1069849319705.5376 }, "end": { "local": "2003-11-27T11:34:19+02:00", "utc": "2003-11-27T09:34:19Z", "ms": 1069925659075.698 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-26T14:22:00+02:00", "utc": "2003-11-26T12:22:00Z", "ms": 1069849319705.5376 }, "end": { "local": "2003-11-27T11:34:19+02:00", "utc": "2003-11-27T09:34:19Z", "ms": 1069925659075.698 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-11-26", "window": { "start": { "local": "2003-11-26T11:18:03+02:00", "utc": "2003-11-26T09:18:03Z", "ms": 1069838282728.1606 }, "end": { "local": "2003-11-26T12:06:03+02:00", "utc": "2003-11-26T10:06:03Z", "ms": 1069841162728.1606 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2003-11-27", "window": { "start": { "local": "2003-11-27T11:18:22+02:00", "utc": "2003-11-27T09:18:22Z", "ms": 1069924702084.0247 }, "end": { "local": "2003-11-27T12:06:22+02:00", "utc": "2003-11-27T10:06:22Z", "ms": 1069927582084.0247 } }, "covered_min": 16, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:22 on Wed 26 Nov to 11:34 on Thu 27 Nov.", "fact": "2003-11-26T12:22:00Z → 2003-11-27T09:34:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 26th, 11:18–12:06 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 16 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 957 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Thursday 27 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": "2003-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-27", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Thursday 27 November. Caturthī runs from 14:22 on Wed 26 Nov to 11:34 on Thu 27 Nov and covers 16 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-11-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6901, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2003-11-28T09:23:42+02:00", "utc": "2003-11-28T07:23:42Z", "ms": 1070004221643.8213 }, "end": { "local": "2003-11-29T07:56:41+02:00", "utc": "2003-11-29T05:56:41Z", "ms": 1070085400965.338 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-28T09:23:42+02:00", "utc": "2003-11-28T07:23:42Z", "ms": 1070004221643.8213 }, "end": { "local": "2003-11-29T07:56:41+02:00", "utc": "2003-11-29T05:56:41Z", "ms": 1070085400965.338 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-11-28", "window": { "start": { "local": "2003-11-28T11:18:42+02:00", "utc": "2003-11-28T09:18:42Z", "ms": 1070011122154.5925 }, "end": { "local": "2003-11-28T12:06:42+02:00", "utc": "2003-11-28T10:06:42Z", "ms": 1070014002154.5925 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-11-29", "window": { "start": { "local": "2003-11-29T11:19:03+02:00", "utc": "2003-11-29T09:19:03Z", "ms": 1070097542920.0198 }, "end": { "local": "2003-11-29T12:07:03+02:00", "utc": "2003-11-29T10:07:03Z", "ms": 1070100422920.0198 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:24 on Fri 28 Nov to 07:57 on Sat 29 Nov.", "fact": "2003-11-28T07:23:42Z → 2003-11-29T05:56:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 28th, 11:19–12:07 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6901 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Cairo, 2003: Friday 28 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "champa-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-28", "confidence": "determinate" } ], "quote": "In Cairo, Campā Ṣaṣṭhī 2003 falls on Friday 28 November. Ṣaṣṭhī runs from 09:24 on Fri 28 Nov to 07:57 on Sat 29 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6901, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2003-11-28T09:23:42+02:00", "utc": "2003-11-28T07:23:42Z", "ms": 1070004221643.8213 }, "end": { "local": "2003-11-29T07:56:41+02:00", "utc": "2003-11-29T05:56:41Z", "ms": 1070085400965.338 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-28T09:23:42+02:00", "utc": "2003-11-28T07:23:42Z", "ms": 1070004221643.8213 }, "end": { "local": "2003-11-29T07:56:41+02:00", "utc": "2003-11-29T05:56:41Z", "ms": 1070085400965.338 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-11-28", "window": { "start": { "local": "2003-11-28T11:18:42+02:00", "utc": "2003-11-28T09:18:42Z", "ms": 1070011122154.5925 }, "end": { "local": "2003-11-28T12:06:42+02:00", "utc": "2003-11-28T10:06:42Z", "ms": 1070014002154.5925 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-11-29", "window": { "start": { "local": "2003-11-29T11:19:03+02:00", "utc": "2003-11-29T09:19:03Z", "ms": 1070097542920.0198 }, "end": { "local": "2003-11-29T12:07:03+02:00", "utc": "2003-11-29T10:07:03Z", "ms": 1070100422920.0198 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:24 on Fri 28 Nov to 07:57 on Sat 29 Nov.", "fact": "2003-11-28T07:23:42Z → 2003-11-29T05:56:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 28th, 11:19–12:07 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6901 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Cairo, 2003: Friday 28 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-28", "confidence": "determinate" } ], "quote": "In Cairo, Skanda Ṣaṣṭhī 2003 falls on Friday 28 November. Ṣaṣṭhī runs from 09:24 on Fri 28 Nov to 07:57 on Sat 29 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-11-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12142, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2003-11-29T07:56:41+02:00", "utc": "2003-11-29T05:56:41Z", "ms": 1070085400965.338 }, "end": { "local": "2003-11-30T07:17:21+02:00", "utc": "2003-11-30T05:17:21Z", "ms": 1070169440867.0969 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-11-29T07:56:41+02:00", "utc": "2003-11-29T05:56:41Z", "ms": 1070085400965.338 }, "end": { "local": "2003-11-30T07:17:21+02:00", "utc": "2003-11-30T05:17:21Z", "ms": 1070169440867.0969 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-11-29", "window": { "start": { "local": "2003-11-29T11:19:03+02:00", "utc": "2003-11-29T09:19:03Z", "ms": 1070097542920.0198 }, "end": { "local": "2003-11-29T12:07:03+02:00", "utc": "2003-11-29T10:07:03Z", "ms": 1070100422920.0198 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-11-30", "window": { "start": { "local": "2003-11-30T11:19:24+02:00", "utc": "2003-11-30T09:19:24Z", "ms": 1070183964360.6609 }, "end": { "local": "2003-11-30T12:07:24+02:00", "utc": "2003-11-30T10:07:24Z", "ms": 1070186844360.6609 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 07:57 on Sat 29 Nov to 07:17 on Sun 30 Nov.", "fact": "2003-11-29T05:56:41Z → 2003-11-30T05:17:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 29th, 11:19–12:07 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12142 s" }, { "step": "ruling", "text": "Mitra Saptamī, Cairo, 2003: Saturday 29 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mitra-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Mitra saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-11-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-11-29", "confidence": "determinate" } ], "quote": "In Cairo, Mitra Saptamī 2003 falls on Saturday 29 November. Saptamī runs from 07:57 on Sat 29 Nov to 07:17 on Sun 30 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/ekadashi?on=2003-12-04", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12156, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-12-03T09:57:20+02:00", "utc": "2003-12-03T07:57:20Z", "ms": 1070438239994.2792 }, "end": { "local": "2003-12-04T12:04:25+02:00", "utc": "2003-12-04T10:04:25Z", "ms": 1070532265199.7024 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-03T09:57:20+02:00", "utc": "2003-12-03T07:57:20Z", "ms": 1070438239994.2792 }, "end": { "local": "2003-12-04T12:04:25+02:00", "utc": "2003-12-04T10:04:25Z", "ms": 1070532265199.7024 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-12-03", "window": { "start": { "local": "2003-12-03T06:34:44+02:00", "utc": "2003-12-03T04:34:44Z", "ms": 1070426084334.2046 }, "end": { "local": "2003-12-03T06:34:44+02:00", "utc": "2003-12-03T04:34:44Z", "ms": 1070426084334.2046 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-12-04", "window": { "start": { "local": "2003-12-04T06:35:31+02:00", "utc": "2003-12-04T04:35:31Z", "ms": 1070512531074.5079 }, "end": { "local": "2003-12-04T06:35:31+02:00", "utc": "2003-12-04T04:35:31Z", "ms": 1070512531074.5079 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:57 on Wed 3 Dec to 12:04 on Thu 4 Dec.", "fact": "2003-12-03T07:57:20Z → 2003-12-04T10:04:25Z" }, { "step": "kaala", "text": "Sunrise is at 06:35 on the 3rd and 06:36 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 12156 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Cairo, 2003: Thursday 4 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": "2003-12-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-04", "confidence": "determinate" } ], "quote": "In Cairo, Mokṣadā Ekādaśī 2003 falls on Thursday 4 December. Ekādaśī runs from 09:57 on Wed 3 Dec to 12:04 on Thu 4 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-12-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-05", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 271, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2003-12-04T12:04:25+02:00", "utc": "2003-12-04T10:04:25Z", "ms": 1070532265199.7024 }, "end": { "local": "2003-12-05T14:33:19+02:00", "utc": "2003-12-05T12:33:19Z", "ms": 1070627598613.0161 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-04T12:04:25+02:00", "utc": "2003-12-04T10:04:25Z", "ms": 1070532265199.7024 }, "end": { "local": "2003-12-05T14:33:19+02:00", "utc": "2003-12-05T12:33:19Z", "ms": 1070627598613.0161 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-12-04", "window": { "start": { "local": "2003-12-04T11:20:56+02:00", "utc": "2003-12-04T09:20:56Z", "ms": 1070529656477.6886 }, "end": { "local": "2003-12-04T12:08:56+02:00", "utc": "2003-12-04T10:08:56Z", "ms": 1070532536477.6886 } }, "covered_min": 5, "window_min": 48, "qualifies": true }, { "local_date": "2003-12-05", "window": { "start": { "local": "2003-12-05T11:21:21+02:00", "utc": "2003-12-05T09:21:21Z", "ms": 1070616080992.7302 }, "end": { "local": "2003-12-05T12:09:21+02:00", "utc": "2003-12-05T10:09:21Z", "ms": 1070618960992.7302 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 12:04 on Thu 4 Dec to 14:33 on Fri 5 Dec.", "fact": "2003-12-04T10:04:25Z → 2003-12-05T12:33:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 4th, 11:21–12:09 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 5 of 48 minutes on the 4th and 48 of 48 on the 5th.", "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 271 s < 300 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Cairo, 2003: Friday 5 December.", "fact": "confidence: boundary (margin)" } ], "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": "2003-12-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-05", "confidence": "determinate" } ], "quote": "In Cairo, Akhaṇḍa Dvādaśī 2003 falls on Friday 5 December. Dvādaśī runs from 12:04 on Thu 4 Dec to 14:33 on Fri 5 Dec and covers all of madhyāhna that midday. It also reaches the previous midday for 5 minutes; by the rule the second midday is taken. It is 4 min 31 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/pradosha-vrata?on=2003-12-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-05", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1175, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-12-05T14:33:19+02:00", "utc": "2003-12-05T12:33:19Z", "ms": 1070627598613.0161 }, "end": { "local": "2003-12-06T17:14:04+02:00", "utc": "2003-12-06T15:14:04Z", "ms": 1070723644007.9882 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-05T14:33:19+02:00", "utc": "2003-12-05T12:33:19Z", "ms": 1070627598613.0161 }, "end": { "local": "2003-12-06T17:14:04+02:00", "utc": "2003-12-06T15:14:04Z", "ms": 1070723644007.9882 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-12-05", "window": { "start": { "local": "2003-12-05T16:54:25+02:00", "utc": "2003-12-05T14:54:25Z", "ms": 1070636064721.6606 }, "end": { "local": "2003-12-05T18:44:06+02:00", "utc": "2003-12-05T16:44:06Z", "ms": 1070642645807.0846 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "2003-12-06", "window": { "start": { "local": "2003-12-06T16:54:29+02:00", "utc": "2003-12-06T14:54:29Z", "ms": 1070722469255.4575 }, "end": { "local": "2003-12-06T18:44:16+02:00", "utc": "2003-12-06T16:44:16Z", "ms": 1070729055732.1184 } }, "covered_min": 20, "window_min": 110, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:33 on Fri 5 Dec to 17:14 on Sat 6 Dec.", "fact": "2003-12-05T12:33:19Z → 2003-12-06T15:14:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:54–18:44 on the 5th, 16:54–18:44 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 110 of 110 minutes on the 5th and 20 of 110 on the 6th.", "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 1175 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Cairo, 2003: Friday 5 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": "2003-12-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-05", "confidence": "boundary" } ], "quote": "In Cairo, Śukla Pradoṣa Vrata 2003 falls on Friday 5 December. Trayodaśī runs from 14:33 on Fri 5 Dec to 17:14 on Sat 6 Dec and covers all of pradoṣa that evening. It also reaches the next evening for 20 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/cairo/festivals/2003/pradosha-vrata?on=2003-12-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4395, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2003-12-07T19:57:42+02:00", "utc": "2003-12-07T17:57:42Z", "ms": 1070819862011.3047 }, "end": { "local": "2003-12-08T22:36:42+02:00", "utc": "2003-12-08T20:36:42Z", "ms": 1070915801533.1113 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-07T19:57:42+02:00", "utc": "2003-12-07T17:57:42Z", "ms": 1070819862011.3047 }, "end": { "local": "2003-12-08T22:36:42+02:00", "utc": "2003-12-08T20:36:42Z", "ms": 1070915801533.1113 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-12-07", "window": { "start": { "local": "2003-12-07T16:54:35+02:00", "utc": "2003-12-07T14:54:35Z", "ms": 1070808875476.4518 }, "end": { "local": "2003-12-07T18:44:27+02:00", "utc": "2003-12-07T16:44:27Z", "ms": 1070815467030.0322 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "2003-12-08", "window": { "start": { "local": "2003-12-08T16:54:43+02:00", "utc": "2003-12-08T14:54:43Z", "ms": 1070895283377.1925 }, "end": { "local": "2003-12-08T18:44:40+02:00", "utc": "2003-12-08T16:44:40Z", "ms": 1070901879689.072 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:58 on Sun 7 Dec to 22:37 on Mon 8 Dec.", "fact": "2003-12-07T17:57:42Z → 2003-12-08T20:36:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:55–18:44 on the 7th, 16:55–18:45 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 110 minutes on the 7th and 110 of 110 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4395 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Cairo, 2003: Monday 8 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": "2003-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-08", "confidence": "determinate" } ], "quote": "In Cairo, Dattātreyotpatti (Datta Jayanti) 2003 falls on Monday 8 December. Pūrṇimā runs from 19:58 on Sun 7 Dec to 22:37 on Mon 8 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/cairo/festivals/2003/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": "/cairo/festivals/2003/sankashta-chaturthi?on=2003-12-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36488, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-12-12T05:10:23+02:00", "utc": "2003-12-12T03:10:23Z", "ms": 1071198622918.0348 }, "end": { "local": "2003-12-13T06:38:58+02:00", "utc": "2003-12-13T04:38:58Z", "ms": 1071290338277.706 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-12T05:10:23+02:00", "utc": "2003-12-12T03:10:23Z", "ms": 1071198622918.0348 }, "end": { "local": "2003-12-13T06:38:58+02:00", "utc": "2003-12-13T04:38:58Z", "ms": 1071290338277.706 } }, "kaala": "moonrise", "days": [ { "local_date": "2003-12-11", "window": { "start": { "local": "2003-12-11T19:02:15+02:00", "utc": "2003-12-11T17:02:15Z", "ms": 1071162135070.374 }, "end": { "local": "2003-12-11T19:02:15+02:00", "utc": "2003-12-11T17:02:15Z", "ms": 1071162135070.374 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2003-12-12", "window": { "start": { "local": "2003-12-12T19:59:43+02:00", "utc": "2003-12-12T17:59:43Z", "ms": 1071251982608.9625 }, "end": { "local": "2003-12-12T19:59:43+02:00", "utc": "2003-12-12T17:59:43Z", "ms": 1071251982608.9625 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:10 on Fri 12 Dec to 06:39 on Sat 13 Dec.", "fact": "2003-12-12T03:10:23Z → 2003-12-13T04:38:58Z" }, { "step": "kaala", "text": "Moonrise is at 19:02 on the 11th and 20:00 on the 12th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 11th and is on the 12th.", "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 36488 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Cairo, 2003: Friday 12 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": "2003-12-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-12", "confidence": "determinate" } ], "quote": "In Cairo, Saṅkaṣṭa Caturthī 2003 falls on Friday 12 December. Caturthī runs from 05:10 on Fri 12 Dec to 06:39 on Sat 13 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/sankashta-chaturthi?on=2003-12-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/ekadashi?on=2003-12-19", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10511, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2003-12-19T03:50:32+02:00", "utc": "2003-12-19T01:50:32Z", "ms": 1071798632313.7928 }, "end": { "local": "2003-12-20T01:16:39+02:00", "utc": "2003-12-19T23:16:39Z", "ms": 1071875799418.3027 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-19T03:50:32+02:00", "utc": "2003-12-19T01:50:32Z", "ms": 1071798632313.7928 }, "end": { "local": "2003-12-20T01:16:39+02:00", "utc": "2003-12-19T23:16:39Z", "ms": 1071875799418.3027 } }, "kaala": "sunrise", "days": [ { "local_date": "2003-12-19", "window": { "start": { "local": "2003-12-19T06:45:44+02:00", "utc": "2003-12-19T04:45:44Z", "ms": 1071809143783.4746 }, "end": { "local": "2003-12-19T06:45:44+02:00", "utc": "2003-12-19T04:45:44Z", "ms": 1071809143783.4746 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2003-12-20", "window": { "start": { "local": "2003-12-20T06:46:17+02:00", "utc": "2003-12-20T04:46:17Z", "ms": 1071895576928.8146 }, "end": { "local": "2003-12-20T06:46:17+02:00", "utc": "2003-12-20T04:46:17Z", "ms": 1071895576928.8146 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:51 on Fri 19 Dec to 01:17 on Sat 20 Dec.", "fact": "2003-12-19T01:50:32Z → 2003-12-19T23:16:39Z" }, { "step": "kaala", "text": "Sunrise is at 06:46 on the 19th and 06:46 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 10511 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Cairo, 2003: Friday 19 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": "2003-12-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-19", "confidence": "determinate" } ], "quote": "In Cairo, Saphalā Ekādaśī 2003 falls on Friday 19 December. Ekādaśī runs from 03:51 on Fri 19 Dec to 01:17 on Sat 20 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/cairo/festivals/2003/ekadashi?on=2003-12-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/pradosha-vrata?on=2003-12-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-21", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 211, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2003-12-20T22:15:00+02:00", "utc": "2003-12-20T20:15:00Z", "ms": 1071951299885.9689 }, "end": { "local": "2003-12-21T18:52:52+02:00", "utc": "2003-12-21T16:52:52Z", "ms": 1072025571586.962 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-20T22:15:00+02:00", "utc": "2003-12-20T20:15:00Z", "ms": 1071951299885.9689 }, "end": { "local": "2003-12-21T18:52:52+02:00", "utc": "2003-12-21T16:52:52Z", "ms": 1072025571586.962 } }, "kaala": "pradosha", "days": [ { "local_date": "2003-12-20", "window": { "start": { "local": "2003-12-20T16:58:24+02:00", "utc": "2003-12-20T14:58:24Z", "ms": 1071932304481.3373 }, "end": { "local": "2003-12-20T18:48:52+02:00", "utc": "2003-12-20T16:48:52Z", "ms": 1071938931734.9666 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "2003-12-21", "window": { "start": { "local": "2003-12-21T16:58:53+02:00", "utc": "2003-12-21T14:58:53Z", "ms": 1072018732822.2823 }, "end": { "local": "2003-12-21T18:49:20+02:00", "utc": "2003-12-21T16:49:20Z", "ms": 1072025360393.5249 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:15 on Sat 20 Dec to 18:53 on Sun 21 Dec.", "fact": "2003-12-20T20:15:00Z → 2003-12-21T16:52:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:58–18:49 on the 20th, 16:59–18:49 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 110 minutes on the 20th and 110 of 110 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 211 s < 300 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Cairo, 2003: Sunday 21 December.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2003-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-21", "confidence": "determinate" } ], "quote": "In Cairo, Kṛṣṇa Pradoṣa Vrata 2003 falls on Sunday 21 December. Trayodaśī runs from 22:15 on Sat 20 Dec to 18:53 on Sun 21 Dec and covers all of pradoṣa that evening. It is 3 min 31 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/cairo/festivals/2003/pradosha-vrata?on=2003-12-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/shivaratri?on=2003-12-21", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16575, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2003-12-21T18:52:52+02:00", "utc": "2003-12-21T16:52:52Z", "ms": 1072025571586.962 }, "end": { "local": "2003-12-22T15:18:57+02:00", "utc": "2003-12-22T13:18:57Z", "ms": 1072099136579.7952 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-21T18:52:52+02:00", "utc": "2003-12-21T16:52:52Z", "ms": 1072025571586.962 }, "end": { "local": "2003-12-22T15:18:57+02:00", "utc": "2003-12-22T13:18:57Z", "ms": 1072099136579.7952 } }, "kaala": "nishita", "days": [ { "local_date": "2003-12-21", "window": { "start": { "local": "2003-12-21T23:29:06+02:00", "utc": "2003-12-21T21:29:06Z", "ms": 1072042146214.4419 }, "end": { "local": "2003-12-22T00:17:06+02:00", "utc": "2003-12-21T22:17:06Z", "ms": 1072045026214.4419 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-12-22", "window": { "start": { "local": "2003-12-22T23:29:36+02:00", "utc": "2003-12-22T21:29:36Z", "ms": 1072128575804.3286 }, "end": { "local": "2003-12-23T00:17:36+02:00", "utc": "2003-12-22T22:17:36Z", "ms": 1072131455804.3286 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:53 on Sun 21 Dec to 15:19 on Mon 22 Dec.", "fact": "2003-12-21T16:52:52Z → 2003-12-22T13:18:57Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:29–00:17 on the 21st, 23:30–00:18 on the 22nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16575 s" }, { "step": "ruling", "text": "Śivarātri, Cairo, 2003: Sunday 21 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": "2003-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-21", "confidence": "determinate" } ], "quote": "In Cairo, Śivarātri 2003 falls on Sunday 21 December. Caturdaśī runs from 18:53 on Sun 21 Dec to 15:19 on Mon 22 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/cairo/festivals/2003/shivaratri?on=2003-12-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/cairo/festivals/2003/vinayaka-chaturthi?on=2003-12-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360630", "year": 2003, "local_date": "2003-12-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32580, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2003-12-26T02:28:22+02:00", "utc": "2003-12-26T00:28:22Z", "ms": 1072398501659.087 }, "end": { "local": "2003-12-27T00:28:52+02:00", "utc": "2003-12-26T22:28:52Z", "ms": 1072477731855.931 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2003-12-26T02:28:22+02:00", "utc": "2003-12-26T00:28:22Z", "ms": 1072398501659.087 }, "end": { "local": "2003-12-27T00:28:52+02:00", "utc": "2003-12-26T22:28:52Z", "ms": 1072477731855.931 } }, "kaala": "madhyahna", "days": [ { "local_date": "2003-12-26", "window": { "start": { "local": "2003-12-26T11:31:22+02:00", "utc": "2003-12-26T09:31:22Z", "ms": 1072431081954.696 }, "end": { "local": "2003-12-26T12:19:22+02:00", "utc": "2003-12-26T10:19:22Z", "ms": 1072433961954.696 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2003-12-27", "window": { "start": { "local": "2003-12-27T11:31:52+02:00", "utc": "2003-12-27T09:31:52Z", "ms": 1072517511964.7798 }, "end": { "local": "2003-12-27T12:19:52+02:00", "utc": "2003-12-27T10:19:52Z", "ms": 1072520391964.7798 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:28 on Fri 26 Dec to 00:29 on Sat 27 Dec.", "fact": "2003-12-26T00:28:22Z → 2003-12-26T22:28:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:31–12:19 on the 26th, 11:32–12:20 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32580 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Cairo, 2003: Friday 26 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": "2003-12-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2003-12-26", "confidence": "determinate" } ], "quote": "In Cairo, Vināyaka Caturthī 2003 falls on Friday 26 December. Caturthī runs from 02:28 on Fri 26 Dec to 00:29 on Sat 27 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/cairo/festivals/2003/vinayaka-chaturthi?on=2003-12-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }