{ "id": "/giza/festivals/2030", "place": { "id": "360995", "slug": "giza", "name": "Giza", "region": "Egypt", "country": "EG", "lat": 30.00944, "lon": 31.20861, "elevation_m": 19, "tz": "Africa/Cairo" }, "year": 2030, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-01-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15092, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-01-01T12:54:39+02:00", "utc": "2030-01-01T10:54:39Z", "ms": 1893495278966.2605 }, "end": { "local": "2030-01-02T10:04:59+02:00", "utc": "2030-01-02T08:04:59Z", "ms": 1893571498947.2395 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-01-01T12:54:39+02:00", "utc": "2030-01-01T10:54:39Z", "ms": 1893495278966.2605 }, "end": { "local": "2030-01-02T10:04:59+02:00", "utc": "2030-01-02T08:04:59Z", "ms": 1893571498947.2395 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-01-01", "window": { "start": { "local": "2030-01-01T17:06:11+02:00", "utc": "2030-01-01T15:06:11Z", "ms": 1893510371243.7173 }, "end": { "local": "2030-01-01T18:56:14+02:00", "utc": "2030-01-01T16:56:14Z", "ms": 1893516974200.0198 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "2030-01-02", "window": { "start": { "local": "2030-01-02T17:06:54+02:00", "utc": "2030-01-02T15:06:54Z", "ms": 1893596814241.2952 }, "end": { "local": "2030-01-02T18:56:53+02:00", "utc": "2030-01-02T16:56:53Z", "ms": 1893603413102.379 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:55 on Tue 1 Jan to 10:05 on Wed 2 Jan.", "fact": "2030-01-01T10:54:39Z → 2030-01-02T08:04:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:06–18:56 on the 1st, 17:07–18:57 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 110 of 110 minutes on the 1st and 0 of 110 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15092 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Tuesday 1 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": "2030-01-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-01", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Tuesday 1 January. Trayodaśī runs from 12:55 on Tue 1 Jan to 10:05 on Wed 2 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-01-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-01-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25039, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-01-02T10:04:59+02:00", "utc": "2030-01-02T08:04:59Z", "ms": 1893571498947.2395 }, "end": { "local": "2030-01-03T07:20:39+02:00", "utc": "2030-01-03T05:20:39Z", "ms": 1893648038703.0977 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-01-02T10:04:59+02:00", "utc": "2030-01-02T08:04:59Z", "ms": 1893571498947.2395 }, "end": { "local": "2030-01-03T07:20:39+02:00", "utc": "2030-01-03T05:20:39Z", "ms": 1893648038703.0977 } }, "kaala": "nishita", "days": [ { "local_date": "2030-01-01", "window": { "start": { "local": "2030-01-01T23:34:52+02:00", "utc": "2030-01-01T21:34:52Z", "ms": 1893533692329.8518 }, "end": { "local": "2030-01-02T00:22:52+02:00", "utc": "2030-01-01T22:22:52Z", "ms": 1893536572329.8518 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-01-02", "window": { "start": { "local": "2030-01-02T23:35:20+02:00", "utc": "2030-01-02T21:35:20Z", "ms": 1893620119970.3591 }, "end": { "local": "2030-01-03T00:23:20+02:00", "utc": "2030-01-02T22:23:20Z", "ms": 1893622999970.3591 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:05 on Wed 2 Jan to 07:21 on Thu 3 Jan.", "fact": "2030-01-02T08:04:59Z → 2030-01-03T05:20:39Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 1st, 23:35–00:23 on the 2nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25039 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Wednesday 2 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": "2030-01-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-02", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Wednesday 2 January. Caturdaśī runs from 10:05 on Wed 2 Jan to 07:21 on Thu 3 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-01-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-01-07", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40229, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-01-06T23:56:44+02:00", "utc": "2030-01-06T21:56:44Z", "ms": 1893967003547.939 }, "end": { "local": "2030-01-07T23:35:59+02:00", "utc": "2030-01-07T21:35:59Z", "ms": 1894052158787.9915 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-01-06T23:56:44+02:00", "utc": "2030-01-06T21:56:44Z", "ms": 1893967003547.939 }, "end": { "local": "2030-01-07T23:35:59+02:00", "utc": "2030-01-07T21:35:59Z", "ms": 1894052158787.9915 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-01-06", "window": { "start": { "local": "2030-01-06T11:37:04+02:00", "utc": "2030-01-06T09:37:04Z", "ms": 1893922623712.4277 }, "end": { "local": "2030-01-06T12:25:04+02:00", "utc": "2030-01-06T10:25:04Z", "ms": 1893925503712.4277 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-01-07", "window": { "start": { "local": "2030-01-07T11:37:30+02:00", "utc": "2030-01-07T09:37:30Z", "ms": 1894009050054.1147 }, "end": { "local": "2030-01-07T12:25:30+02:00", "utc": "2030-01-07T10:25:30Z", "ms": 1894011930054.1147 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:57 on Sun 6 Jan to 23:36 on Mon 7 Jan.", "fact": "2030-01-06T21:56:44Z → 2030-01-07T21:35:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 6th, 11:38–12:26 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 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40229 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Monday 7 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": "2030-01-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-07", "confidence": "determinate" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Monday 7 January. Caturthī runs from 23:57 on Sun 6 Jan to 23:36 on Mon 7 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-01-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18661, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 }, "end": { "local": "2030-02-13T01:06:04+02:00", "utc": "2030-02-12T23:06:04Z", "ms": 1897167963677.9146 } }, "span": { "of": "transit", "start": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 }, "end": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 } }, "kaala": "sunset-day", "days": [ { "local_date": "2030-01-14", "window": { "start": { "local": "2030-01-13T17:15:35+02:00", "utc": "2030-01-13T15:15:35Z", "ms": 1894547734713.2874 }, "end": { "local": "2030-01-14T17:16:25+02:00", "utc": "2030-01-14T15:16:25Z", "ms": 1894634185152.644 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2030-01-15", "window": { "start": { "local": "2030-01-14T17:16:25+02:00", "utc": "2030-01-14T15:16:25Z", "ms": 1894634185152.644 }, "end": { "local": "2030-01-15T17:17:16+02:00", "utc": "2030-01-15T15:17:16Z", "ms": 1894720635929.8179 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2030-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 12:05 on Mon 14 Jan.", "fact": "2030-01-14T10:05:24Z · 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 18661 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Giza, 2030: Sunday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2030-01-13", "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": "2030-01-13", "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 Giza, Bhogi 2030 falls on Sunday 13 January. It is kept the day before Pongal, which falls on Monday 14 January. The Sun enters Makara at 12:05 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18661, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 }, "end": { "local": "2030-02-13T01:06:04+02:00", "utc": "2030-02-12T23:06:04Z", "ms": 1897167963677.9146 } }, "span": { "of": "transit", "start": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 }, "end": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 } }, "kaala": "sunset-day", "days": [ { "local_date": "2030-01-14", "window": { "start": { "local": "2030-01-13T17:15:35+02:00", "utc": "2030-01-13T15:15:35Z", "ms": 1894547734713.2874 }, "end": { "local": "2030-01-14T17:16:25+02:00", "utc": "2030-01-14T15:16:25Z", "ms": 1894634185152.644 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2030-01-15", "window": { "start": { "local": "2030-01-14T17:16:25+02:00", "utc": "2030-01-14T15:16:25Z", "ms": 1894634185152.644 }, "end": { "local": "2030-01-15T17:17:16+02:00", "utc": "2030-01-15T15:17:16Z", "ms": 1894720635929.8179 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 12:05 on Mon 14 Jan.", "fact": "2030-01-14T10:05:24Z · 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 18661 s" }, { "step": "ruling", "text": "Pongal, Giza, 2030: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2030-01-14", "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": "2030-01-14", "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 Giza, Pongal 2030 falls on Monday 14 January. The Sun enters Makara at 12:05 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 42876, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 }, "end": { "local": "2030-02-13T01:06:04+02:00", "utc": "2030-02-12T23:06:04Z", "ms": 1897167963677.9146 } }, "span": { "of": "transit", "start": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 }, "end": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 } }, "kaala": "civil-day", "days": [ { "local_date": "2030-01-14", "window": { "start": { "local": "2030-01-14T00:00:00+02:00", "utc": "2030-01-13T22:00:00Z", "ms": 1894572000000 }, "end": { "local": "2030-01-15T00:00:00+02:00", "utc": "2030-01-14T22:00:00Z", "ms": 1894658400000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2030-01-15", "window": { "start": { "local": "2030-01-15T00:00:00+02:00", "utc": "2030-01-14T22:00:00Z", "ms": 1894658400000 }, "end": { "local": "2030-01-16T00:00:00+02:00", "utc": "2030-01-15T22:00:00Z", "ms": 1894744800000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 12:05 on Mon 14 Jan.", "fact": "2030-01-14T10:05:24Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Giza.", "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 42876 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Giza, 2030: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2030-01-14", "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": "2030-01-14", "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 Giza, Makara Saṅkrānti 2030 falls on Monday 14 January. The Sun enters Makara at 12:05 on Mon 14 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18661, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 }, "end": { "local": "2030-02-13T01:06:04+02:00", "utc": "2030-02-12T23:06:04Z", "ms": 1897167963677.9146 } }, "span": { "of": "transit", "start": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 }, "end": { "local": "2030-01-14T12:05:24+02:00", "utc": "2030-01-14T10:05:24Z", "ms": 1894615524087.6038 } }, "kaala": "sunset-day", "days": [ { "local_date": "2030-01-14", "window": { "start": { "local": "2030-01-13T17:15:35+02:00", "utc": "2030-01-13T15:15:35Z", "ms": 1894547734713.2874 }, "end": { "local": "2030-01-14T17:16:25+02:00", "utc": "2030-01-14T15:16:25Z", "ms": 1894634185152.644 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2030-01-15", "window": { "start": { "local": "2030-01-14T17:16:25+02:00", "utc": "2030-01-14T15:16:25Z", "ms": 1894634185152.644 }, "end": { "local": "2030-01-15T17:17:16+02:00", "utc": "2030-01-15T15:17:16Z", "ms": 1894720635929.8179 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2030-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 12:05 on Mon 14 Jan.", "fact": "2030-01-14T10:05:24Z · 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 18661 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Giza, 2030: Tuesday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2030-01-15", "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": "2030-01-15", "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 Giza, Mattu Pongal 2030 falls on Tuesday 15 January. It is kept the day after Pongal, which falls on Monday 14 January. The Sun enters Makara at 12:05 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-01-15", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13302, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-01-14T10:33:54+02:00", "utc": "2030-01-14T08:33:54Z", "ms": 1894610034362.548 }, "end": { "local": "2030-01-15T13:00:42+02:00", "utc": "2030-01-15T11:00:42Z", "ms": 1894705241771.8105 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-01-14T10:33:54+02:00", "utc": "2030-01-14T08:33:54Z", "ms": 1894610034362.548 }, "end": { "local": "2030-01-15T13:00:42+02:00", "utc": "2030-01-15T11:00:42Z", "ms": 1894705241771.8105 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-01-14", "window": { "start": { "local": "2030-01-14T06:52:12+02:00", "utc": "2030-01-14T04:52:12Z", "ms": 1894596732044.1714 }, "end": { "local": "2030-01-14T06:52:12+02:00", "utc": "2030-01-14T04:52:12Z", "ms": 1894596732044.1714 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-01-15", "window": { "start": { "local": "2030-01-15T06:52:04+02:00", "utc": "2030-01-15T04:52:04Z", "ms": 1894683124345.7795 }, "end": { "local": "2030-01-15T06:52:04+02:00", "utc": "2030-01-15T04:52:04Z", "ms": 1894683124345.7795 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:34 on Mon 14 Jan to 13:01 on Tue 15 Jan.", "fact": "2030-01-14T08:33:54Z → 2030-01-15T11:00:42Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 14th and 06:52 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13302 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Giza, 2030: Tuesday 15 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": "2030-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-15", "confidence": "determinate" } ], "quote": "In Giza, Putradā Ekādaśī 2030 falls on Tuesday 15 January. Ekādaśī runs from 10:34 on Mon 14 Jan to 13:01 on Tue 15 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-01-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-01-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2582, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-01-16T15:03:58+02:00", "utc": "2030-01-16T13:03:58Z", "ms": 1894799038409.3574 }, "end": { "local": "2030-01-17T16:35:56+02:00", "utc": "2030-01-17T14:35:56Z", "ms": 1894890956031.2002 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-01-16T15:03:58+02:00", "utc": "2030-01-16T13:03:58Z", "ms": 1894799038409.3574 }, "end": { "local": "2030-01-17T16:35:56+02:00", "utc": "2030-01-17T14:35:56Z", "ms": 1894890956031.2002 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-01-16", "window": { "start": { "local": "2030-01-16T17:18:07+02:00", "utc": "2030-01-16T15:18:07Z", "ms": 1894807087006.7043 }, "end": { "local": "2030-01-16T19:06:36+02:00", "utc": "2030-01-16T17:06:36Z", "ms": 1894813595927.0437 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "2030-01-17", "window": { "start": { "local": "2030-01-17T17:18:58+02:00", "utc": "2030-01-17T15:18:58Z", "ms": 1894893538346.6028 }, "end": { "local": "2030-01-17T19:07:19+02:00", "utc": "2030-01-17T17:07:19Z", "ms": 1894900038725.2131 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:04 on Wed 16 Jan to 16:36 on Thu 17 Jan.", "fact": "2030-01-16T13:03:58Z → 2030-01-17T14:35:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:18–19:07 on the 16th, 17:19–19:07 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 16th and 0 of 108 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2582 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Wednesday 16 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": "2030-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-16", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Wednesday 16 January. Trayodaśī runs from 15:04 on Wed 16 Jan to 16:36 on Thu 17 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-01-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/sankashta-chaturthi?on=2030-01-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15963, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-01-22T15:58:56+02:00", "utc": "2030-01-22T13:58:56Z", "ms": 1895320736186.309 }, "end": { "local": "2030-01-23T14:35:56+02:00", "utc": "2030-01-23T12:35:56Z", "ms": 1895402156382.8452 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-01-22T15:58:56+02:00", "utc": "2030-01-22T13:58:56Z", "ms": 1895320736186.309 }, "end": { "local": "2030-01-23T14:35:56+02:00", "utc": "2030-01-23T12:35:56Z", "ms": 1895402156382.8452 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-01-22", "window": { "start": { "local": "2030-01-22T20:24:59+02:00", "utc": "2030-01-22T18:24:59Z", "ms": 1895336699081.1316 }, "end": { "local": "2030-01-22T20:24:59+02:00", "utc": "2030-01-22T18:24:59Z", "ms": 1895336699081.1316 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-01-23", "window": { "start": { "local": "2030-01-23T21:26:40+02:00", "utc": "2030-01-23T19:26:40Z", "ms": 1895426799939.1116 }, "end": { "local": "2030-01-23T21:26:40+02:00", "utc": "2030-01-23T19:26:40Z", "ms": 1895426799939.1116 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:59 on Tue 22 Jan to 14:36 on Wed 23 Jan.", "fact": "2030-01-22T13:58:56Z → 2030-01-23T12:35:56Z" }, { "step": "kaala", "text": "Moonrise is at 20:25 on the 22nd and 21:27 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 22nd and is not on the 23rd.", "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 15963 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Tuesday 22 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": "2030-01-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-22", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Tuesday 22 January. Caturthī runs from 15:59 on Tue 22 Jan to 14:36 on Wed 23 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-01-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-01-29", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13485, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-01-29T03:02:40+02:00", "utc": "2030-01-29T01:02:40Z", "ms": 1895878959580.942 }, "end": { "local": "2030-01-30T00:57:38+02:00", "utc": "2030-01-29T22:57:38Z", "ms": 1895957858007.314 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-01-29T03:02:40+02:00", "utc": "2030-01-29T01:02:40Z", "ms": 1895878959580.942 }, "end": { "local": "2030-01-30T00:57:38+02:00", "utc": "2030-01-29T22:57:38Z", "ms": 1895957858007.314 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-01-29", "window": { "start": { "local": "2030-01-29T06:47:25+02:00", "utc": "2030-01-29T04:47:25Z", "ms": 1895892445003.8801 }, "end": { "local": "2030-01-29T06:47:25+02:00", "utc": "2030-01-29T04:47:25Z", "ms": 1895892445003.8801 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-01-30", "window": { "start": { "local": "2030-01-30T06:46:53+02:00", "utc": "2030-01-30T04:46:53Z", "ms": 1895978813395.766 }, "end": { "local": "2030-01-30T06:46:53+02:00", "utc": "2030-01-30T04:46:53Z", "ms": 1895978813395.766 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:03 on Tue 29 Jan to 00:58 on Wed 30 Jan.", "fact": "2030-01-29T01:02:40Z → 2030-01-29T22:57:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:47 on the 29th and 06:47 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13485 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Giza, 2030: Tuesday 29 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": "2030-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-29", "confidence": "determinate" } ], "quote": "In Giza, Ṣaṭtilā Ekādaśī 2030 falls on Tuesday 29 January. Ekādaśī runs from 03:03 on Tue 29 Jan to 00:58 on Wed 30 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-01-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-01-31", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6451, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-01-30T22:56:52+02:00", "utc": "2030-01-30T20:56:52Z", "ms": 1896037011546.463 }, "end": { "local": "2030-01-31T21:04:35+02:00", "utc": "2030-01-31T19:04:35Z", "ms": 1896116675435.6777 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-01-30T22:56:52+02:00", "utc": "2030-01-30T20:56:52Z", "ms": 1896037011546.463 }, "end": { "local": "2030-01-31T21:04:35+02:00", "utc": "2030-01-31T19:04:35Z", "ms": 1896116675435.6777 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-01-30", "window": { "start": { "local": "2030-01-30T17:30:15+02:00", "utc": "2030-01-30T15:30:15Z", "ms": 1896017415399.7146 }, "end": { "local": "2030-01-30T19:16:24+02:00", "utc": "2030-01-30T17:16:24Z", "ms": 1896023784056.7827 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "2030-01-31", "window": { "start": { "local": "2030-01-31T17:31:07+02:00", "utc": "2030-01-31T15:31:07Z", "ms": 1896103867215.3772 }, "end": { "local": "2030-01-31T19:17:04+02:00", "utc": "2030-01-31T17:17:04Z", "ms": 1896110224362.3772 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:57 on Wed 30 Jan to 21:05 on Thu 31 Jan.", "fact": "2030-01-30T20:56:52Z → 2030-01-31T19:04:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:30–19:16 on the 30th, 17:31–19:17 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 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. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6451 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Thursday 31 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": "2030-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-31", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Thursday 31 January. Trayodaśī runs from 22:57 on Wed 30 Jan to 21:05 on Thu 31 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-01-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-01-31", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9591, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-01-31T21:04:35+02:00", "utc": "2030-01-31T19:04:35Z", "ms": 1896116675435.6777 }, "end": { "local": "2030-02-01T19:26:07+02:00", "utc": "2030-02-01T17:26:07Z", "ms": 1896197166637.913 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-01-31T21:04:35+02:00", "utc": "2030-01-31T19:04:35Z", "ms": 1896116675435.6777 }, "end": { "local": "2030-02-01T19:26:07+02:00", "utc": "2030-02-01T17:26:07Z", "ms": 1896197166637.913 } }, "kaala": "nishita", "days": [ { "local_date": "2030-01-31", "window": { "start": { "local": "2030-01-31T23:44:27+02:00", "utc": "2030-01-31T21:44:27Z", "ms": 1896126266516.6274 }, "end": { "local": "2030-02-01T00:32:27+02:00", "utc": "2030-01-31T22:32:27Z", "ms": 1896129146516.6274 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-02-01", "window": { "start": { "local": "2030-02-01T23:44:34+02:00", "utc": "2030-02-01T21:44:34Z", "ms": 1896212674367.8901 }, "end": { "local": "2030-02-02T00:32:34+02:00", "utc": "2030-02-01T22:32:34Z", "ms": 1896215554367.8901 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:05 on Thu 31 Jan to 19:26 on Fri 1 Feb.", "fact": "2030-01-31T19:04:35Z → 2030-02-01T17:26:07Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:44–00:32 on the 31st, 23:45–00:33 on the 1st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9591 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Thursday 31 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": "2030-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-01-31", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Thursday 31 January. Caturdaśī runs from 21:05 on Thu 31 Jan to 19:26 on Fri 1 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-01-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28513, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-01-31T21:04:35+02:00", "utc": "2030-01-31T19:04:35Z", "ms": 1896116675435.6777 }, "end": { "local": "2030-02-01T19:26:07+02:00", "utc": "2030-02-01T17:26:07Z", "ms": 1896197166637.913 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-01-31T21:04:35+02:00", "utc": "2030-01-31T19:04:35Z", "ms": 1896116675435.6777 }, "end": { "local": "2030-02-01T19:26:07+02:00", "utc": "2030-02-01T17:26:07Z", "ms": 1896197166637.913 } }, "kaala": "arunodaya", "days": [ { "local_date": "2030-02-01", "window": { "start": { "local": "2030-02-01T04:59:49+02:00", "utc": "2030-02-01T02:59:49Z", "ms": 1896145188670.8777 }, "end": { "local": "2030-02-01T06:45:46+02:00", "utc": "2030-02-01T04:45:46Z", "ms": 1896151545817.8777 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "2030-02-02", "window": { "start": { "local": "2030-02-02T04:59:24+02:00", "utc": "2030-02-02T02:59:24Z", "ms": 1896231564413.3901 }, "end": { "local": "2030-02-02T06:45:10+02:00", "utc": "2030-02-02T04:45:10Z", "ms": 1896237909884.4812 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:05 on Thu 31 Jan to 19:26 on Fri 1 Feb.", "fact": "2030-01-31T19:04:35Z → 2030-02-01T17:26:07Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:00–06:46 on the 1st, 04:59–06:45 on the 2nd.", "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 106 of 106 minutes on the 1st and 0 of 106 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28513 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Giza, 2030: Friday 1 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-02-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-01", "confidence": "determinate" } ], "quote": "In Giza, Yama Tarpaṇa 2030 falls on Friday 1 February. Caturdaśī runs from 21:05 on Thu 31 Jan to 19:26 on Fri 1 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-05", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1306, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-02-05T17:13:38+02:00", "utc": "2030-02-05T15:13:38Z", "ms": 1896534817518.5112 }, "end": { "local": "2030-02-06T18:11:29+02:00", "utc": "2030-02-06T16:11:29Z", "ms": 1896624689332.293 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-05T17:13:38+02:00", "utc": "2030-02-05T15:13:38Z", "ms": 1896534817518.5112 }, "end": { "local": "2030-02-06T18:11:29+02:00", "utc": "2030-02-06T16:11:29Z", "ms": 1896624689332.293 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-02-05", "window": { "start": { "local": "2030-02-05T17:35:23+02:00", "utc": "2030-02-05T15:35:23Z", "ms": 1896536123086.3384 }, "end": { "local": "2030-02-05T19:20:20+02:00", "utc": "2030-02-05T17:20:20Z", "ms": 1896542420315.1758 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "2030-02-06", "window": { "start": { "local": "2030-02-06T17:36:13+02:00", "utc": "2030-02-06T15:36:13Z", "ms": 1896622573456.014 }, "end": { "local": "2030-02-06T19:20:58+02:00", "utc": "2030-02-06T17:20:58Z", "ms": 1896628858268.625 } }, "covered_min": 35, "window_min": 105, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:14 on Tue 5 Feb to 18:11 on Wed 6 Feb.", "fact": "2030-02-05T15:13:38Z → 2030-02-06T16:11:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:35–19:20 on the 5th, 17:36–19:21 on the 6th.", "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 5th and 35 of 105 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "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 1306 s" }, { "step": "ruling", "text": "Tila Caturthī, Giza, 2030: Tuesday 5 February.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2030-02-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-05", "confidence": "boundary" } ], "quote": "In Giza, Tila Caturthī 2030 falls on Tuesday 5 February. Caturthī runs from 17:14 on Tue 5 Feb to 18:11 on Wed 6 Feb and covers all of pradoṣa that evening. It also reaches the next evening for 35 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/giza/festivals/2030/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": "/giza/festivals/2030/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16819, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-02-05T17:13:38+02:00", "utc": "2030-02-05T15:13:38Z", "ms": 1896534817518.5112 }, "end": { "local": "2030-02-06T18:11:29+02:00", "utc": "2030-02-06T16:11:29Z", "ms": 1896624689332.293 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-05T17:13:38+02:00", "utc": "2030-02-05T15:13:38Z", "ms": 1896534817518.5112 }, "end": { "local": "2030-02-06T18:11:29+02:00", "utc": "2030-02-06T16:11:29Z", "ms": 1896624689332.293 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-02-05", "window": { "start": { "local": "2030-02-05T11:45:18+02:00", "utc": "2030-02-05T09:45:18Z", "ms": 1896515118410.2915 }, "end": { "local": "2030-02-05T12:33:18+02:00", "utc": "2030-02-05T10:33:18Z", "ms": 1896517998410.2915 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-02-06", "window": { "start": { "local": "2030-02-06T11:45:23+02:00", "utc": "2030-02-06T09:45:23Z", "ms": 1896601522879.3164 }, "end": { "local": "2030-02-06T12:33:23+02:00", "utc": "2030-02-06T10:33:23Z", "ms": 1896604402879.3164 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:14 on Tue 5 Feb to 18:11 on Wed 6 Feb.", "fact": "2030-02-05T15:13:38Z → 2030-02-06T16:11:29Z" }, { "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": "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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16819 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Giza, 2030: Wednesday 6 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": "2030-02-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-06", "confidence": "determinate" } ], "quote": "In Giza, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2030 falls on Wednesday 6 February. Caturthī runs from 17:14 on Tue 5 Feb to 18:11 on Wed 6 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20286, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2030-02-06T18:11:29+02:00", "utc": "2030-02-06T16:11:29Z", "ms": 1896624689332.293 }, "end": { "local": "2030-02-07T19:48:07+02:00", "utc": "2030-02-07T17:48:07Z", "ms": 1896716887326.2332 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-06T18:11:29+02:00", "utc": "2030-02-06T16:11:29Z", "ms": 1896624689332.293 }, "end": { "local": "2030-02-07T19:48:07+02:00", "utc": "2030-02-07T17:48:07Z", "ms": 1896716887326.2332 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-02-06", "window": { "start": { "local": "2030-02-06T11:45:23+02:00", "utc": "2030-02-06T09:45:23Z", "ms": 1896601522879.3164 }, "end": { "local": "2030-02-06T12:33:23+02:00", "utc": "2030-02-06T10:33:23Z", "ms": 1896604402879.3164 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-02-07", "window": { "start": { "local": "2030-02-07T11:45:27+02:00", "utc": "2030-02-07T09:45:27Z", "ms": 1896687926531.4126 }, "end": { "local": "2030-02-07T12:33:27+02:00", "utc": "2030-02-07T10:33:27Z", "ms": 1896690806531.4126 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 18:11 on Wed 6 Feb to 19:48 on Thu 7 Feb.", "fact": "2030-02-06T16:11:29Z → 2030-02-07T17:48:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 6th, 11:45–12:33 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 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20286 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Giza, 2030: Thursday 7 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": "2030-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-07", "confidence": "determinate" } ], "quote": "In Giza, Śrī Pañcamī 2030 falls on Thursday 7 February. Pañcamī runs from 18:11 on Wed 6 Feb to 19:48 on Thu 7 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20286, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2030-02-06T18:11:29+02:00", "utc": "2030-02-06T16:11:29Z", "ms": 1896624689332.293 }, "end": { "local": "2030-02-07T19:48:07+02:00", "utc": "2030-02-07T17:48:07Z", "ms": 1896716887326.2332 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-06T18:11:29+02:00", "utc": "2030-02-06T16:11:29Z", "ms": 1896624689332.293 }, "end": { "local": "2030-02-07T19:48:07+02:00", "utc": "2030-02-07T17:48:07Z", "ms": 1896716887326.2332 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-02-06", "window": { "start": { "local": "2030-02-06T11:45:23+02:00", "utc": "2030-02-06T09:45:23Z", "ms": 1896601522879.3164 }, "end": { "local": "2030-02-06T12:33:23+02:00", "utc": "2030-02-06T10:33:23Z", "ms": 1896604402879.3164 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-02-07", "window": { "start": { "local": "2030-02-07T11:45:27+02:00", "utc": "2030-02-07T09:45:27Z", "ms": 1896687926531.4126 }, "end": { "local": "2030-02-07T12:33:27+02:00", "utc": "2030-02-07T10:33:27Z", "ms": 1896690806531.4126 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 18:11 on Wed 6 Feb to 19:48 on Thu 7 Feb.", "fact": "2030-02-06T16:11:29Z → 2030-02-07T17:48:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 6th, 11:45–12:33 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 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20286 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Giza, 2030: Thursday 7 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": "2030-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-07", "confidence": "determinate" } ], "quote": "In Giza, Vasanta Pañcamī 2030 falls on Thursday 7 February. Pañcamī runs from 18:11 on Wed 6 Feb to 19:48 on Thu 7 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15952, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2030-02-08T21:57:42+02:00", "utc": "2030-02-08T19:57:42Z", "ms": 1896811062026.5999 }, "end": { "local": "2030-02-10T00:29:35+02:00", "utc": "2030-02-09T22:29:35Z", "ms": 1896906574895.9248 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-08T21:57:42+02:00", "utc": "2030-02-08T19:57:42Z", "ms": 1896811062026.5999 }, "end": { "local": "2030-02-10T00:29:35+02:00", "utc": "2030-02-09T22:29:35Z", "ms": 1896906574895.9248 } }, "kaala": "arunodaya", "days": [ { "local_date": "2030-02-09", "window": { "start": { "local": "2030-02-09T04:56:01+02:00", "utc": "2030-02-09T02:56:01Z", "ms": 1896836160589.5598 }, "end": { "local": "2030-02-09T06:40:20+02:00", "utc": "2030-02-09T04:40:20Z", "ms": 1896842420181.8777 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "2030-02-10", "window": { "start": { "local": "2030-02-10T04:55:27+02:00", "utc": "2030-02-10T02:55:27Z", "ms": 1896922526816.8677 }, "end": { "local": "2030-02-10T06:39:34+02:00", "utc": "2030-02-10T04:39:34Z", "ms": 1896928773615.7449 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 21:58 on Fri 8 Feb to 00:30 on Sun 10 Feb.", "fact": "2030-02-08T19:57:42Z → 2030-02-09T22:29:35Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:56–06:40 on the 9th, 04:55–06:40 on the 10th.", "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 104 of 104 minutes on the 9th and 0 of 104 on the 10th.", "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 15952 s" }, { "step": "ruling", "text": "Ratha Saptamī, Giza, 2030: Saturday 9 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": "2030-02-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-09", "confidence": "determinate" } ], "quote": "In Giza, Ratha Saptamī 2030 falls on Saturday 9 February. Saptamī runs from 21:58 on Fri 8 Feb to 00:30 on Sun 10 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-02-14", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4251, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-02-13T07:47:57+02:00", "utc": "2030-02-13T05:47:57Z", "ms": 1897192077333.2988 }, "end": { "local": "2030-02-14T09:19:47+02:00", "utc": "2030-02-14T07:19:47Z", "ms": 1897283987306.7446 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-13T07:47:57+02:00", "utc": "2030-02-13T05:47:57Z", "ms": 1897192077333.2988 }, "end": { "local": "2030-02-14T09:19:47+02:00", "utc": "2030-02-14T07:19:47Z", "ms": 1897283987306.7446 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-02-13", "window": { "start": { "local": "2030-02-13T06:37:07+02:00", "utc": "2030-02-13T04:37:07Z", "ms": 1897187826709.7026 }, "end": { "local": "2030-02-13T06:37:07+02:00", "utc": "2030-02-13T04:37:07Z", "ms": 1897187826709.7026 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-02-14", "window": { "start": { "local": "2030-02-14T06:36:15+02:00", "utc": "2030-02-14T04:36:15Z", "ms": 1897274175431.1106 }, "end": { "local": "2030-02-14T06:36:15+02:00", "utc": "2030-02-14T04:36:15Z", "ms": 1897274175431.1106 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:48 on Wed 13 Feb to 09:20 on Thu 14 Feb.", "fact": "2030-02-13T05:47:57Z → 2030-02-14T07:19:47Z" }, { "step": "kaala", "text": "Sunrise is at 06:37 on the 13th and 06:36 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 4251 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Giza, 2030: Thursday 14 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": "2030-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-14", "confidence": "determinate" } ], "quote": "In Giza, Jayā Ekādaśī 2030 falls on Thursday 14 February. Ekādaśī runs from 07:48 on Wed 13 Feb to 09:20 on Thu 14 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-02-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5793, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2030-02-14T09:19:47+02:00", "utc": "2030-02-14T07:19:47Z", "ms": 1897283987306.7446 }, "end": { "local": "2030-02-15T10:08:54+02:00", "utc": "2030-02-15T08:08:54Z", "ms": 1897373333909.3267 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-14T09:19:47+02:00", "utc": "2030-02-14T07:19:47Z", "ms": 1897283987306.7446 }, "end": { "local": "2030-02-15T10:08:54+02:00", "utc": "2030-02-15T08:08:54Z", "ms": 1897373333909.3267 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-02-14", "window": { "start": { "local": "2030-02-14T11:45:30+02:00", "utc": "2030-02-14T09:45:30Z", "ms": 1897292729742.0762 }, "end": { "local": "2030-02-14T12:33:30+02:00", "utc": "2030-02-14T10:33:30Z", "ms": 1897295609742.0762 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-02-15", "window": { "start": { "local": "2030-02-15T11:45:27+02:00", "utc": "2030-02-15T09:45:27Z", "ms": 1897379127119.224 }, "end": { "local": "2030-02-15T12:33:27+02:00", "utc": "2030-02-15T10:33:27Z", "ms": 1897382007119.224 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 09:20 on Thu 14 Feb to 10:09 on Fri 15 Feb.", "fact": "2030-02-14T07:19:47Z → 2030-02-15T08:08:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 14th, 11:45–12:33 on the 15th.", "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 14th and 0 of 48 on the 15th.", "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 5793 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Giza, 2030: Thursday 14 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": "2030-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-14", "confidence": "determinate" } ], "quote": "In Giza, Bhīṣma Dvādaśī 2030 falls on Thursday 14 February. Dvādaśī runs from 09:20 on Thu 14 Feb to 10:09 on Fri 15 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/pradosha-vrata?on=2030-02-15", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27064, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-02-15T10:08:54+02:00", "utc": "2030-02-15T08:08:54Z", "ms": 1897373333909.3267 }, "end": { "local": "2030-02-16T10:13:14+02:00", "utc": "2030-02-16T08:13:14Z", "ms": 1897459993884.9111 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-15T10:08:54+02:00", "utc": "2030-02-15T08:08:54Z", "ms": 1897373333909.3267 }, "end": { "local": "2030-02-16T10:13:14+02:00", "utc": "2030-02-16T08:13:14Z", "ms": 1897459993884.9111 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-02-15", "window": { "start": { "local": "2030-02-15T17:43:31+02:00", "utc": "2030-02-15T15:43:31Z", "ms": 1897400611192.9878 }, "end": { "local": "2030-02-15T19:26:19+02:00", "utc": "2030-02-15T17:26:19Z", "ms": 1897406778978.245 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "2030-02-16", "window": { "start": { "local": "2030-02-16T17:44:18+02:00", "utc": "2030-02-16T15:44:18Z", "ms": 1897487057943.7344 }, "end": { "local": "2030-02-16T19:26:52+02:00", "utc": "2030-02-16T17:26:52Z", "ms": 1897493212227.5334 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:09 on Fri 15 Feb to 10:13 on Sat 16 Feb.", "fact": "2030-02-15T08:08:54Z → 2030-02-16T08:13:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:44–19:26 on the 15th, 17:44–19:27 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 103 of 103 minutes on the 15th and 0 of 103 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 27064 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Friday 15 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": "2030-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-15", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Friday 15 February. Trayodaśī runs from 10:09 on Fri 15 Feb to 10:13 on Sat 16 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-02-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7816, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-02-17T09:35:04+02:00", "utc": "2030-02-17T07:35:04Z", "ms": 1897544103529.317 }, "end": { "local": "2030-02-18T08:19:50+02:00", "utc": "2030-02-18T06:19:50Z", "ms": 1897625989671.2493 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2030-02-17T09:35:04+02:00", "utc": "2030-02-17T07:35:04Z", "ms": 1897544103529.317 }, "end": { "local": "2030-02-18T08:19:50+02:00", "utc": "2030-02-18T06:19:50Z", "ms": 1897625989671.2493 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-02-17", "window": { "start": { "local": "2030-02-17T11:45:20+02:00", "utc": "2030-02-17T09:45:20Z", "ms": 1897551919689.1006 }, "end": { "local": "2030-02-17T12:33:20+02:00", "utc": "2030-02-17T10:33:20Z", "ms": 1897554799689.1006 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-02-18", "window": { "start": { "local": "2030-02-18T11:45:15+02:00", "utc": "2030-02-18T09:45:15Z", "ms": 1897638314913.9724 }, "end": { "local": "2030-02-18T12:33:15+02:00", "utc": "2030-02-18T10:33:15Z", "ms": 1897641194913.9724 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:35 on Sun 17 Feb to 08:20 on Mon 18 Feb.", "fact": "2030-02-17T07:35:04Z → 2030-02-18T06:19:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 17th, 11:45–12:33 on the 18th.", "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 17th and 0 of 48 on the 18th.", "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 7816 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Giza, 2030: Sunday 17 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": "2030-02-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-17", "confidence": "determinate" } ], "quote": "In Giza, Māghī Pūrṇimā 2030 falls on Sunday 17 February. Pūrṇimā runs from 09:35 on Sun 17 Feb to 08:20 on Mon 18 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-02-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8386, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-02-21T02:09:27+02:00", "utc": "2030-02-21T00:09:27Z", "ms": 1897862966577.868 }, "end": { "local": "2030-02-21T23:44:49+02:00", "utc": "2030-02-21T21:44:49Z", "ms": 1897940689363.6042 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-02-21T02:09:27+02:00", "utc": "2030-02-21T00:09:27Z", "ms": 1897862966577.868 }, "end": { "local": "2030-02-21T23:44:49+02:00", "utc": "2030-02-21T21:44:49Z", "ms": 1897940689363.6042 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-02-20", "window": { "start": { "local": "2030-02-20T20:19:42+02:00", "utc": "2030-02-20T18:19:42Z", "ms": 1897841981523.026 }, "end": { "local": "2030-02-20T20:19:42+02:00", "utc": "2030-02-20T18:19:42Z", "ms": 1897841981523.026 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-02-21", "window": { "start": { "local": "2030-02-21T21:25:03+02:00", "utc": "2030-02-21T19:25:03Z", "ms": 1897932303453.7175 }, "end": { "local": "2030-02-21T21:25:03+02:00", "utc": "2030-02-21T19:25:03Z", "ms": 1897932303453.7175 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:09 on Thu 21 Feb to 23:45 on Thu 21 Feb.", "fact": "2030-02-21T00:09:27Z → 2030-02-21T21:44:49Z" }, { "step": "kaala", "text": "Moonrise is at 20:20 on the 20th and 21:25 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 8386 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Thursday 21 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": "2030-02-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-21", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Thursday 21 February. Caturthī runs from 02:09 on Thu 21 Feb to 23:45 on Thu 21 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-02-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-02-28", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-02-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15161, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-02-27T11:50:14+02:00", "utc": "2030-02-27T09:50:14Z", "ms": 1898416214310.2424 }, "end": { "local": "2030-02-28T10:35:16+02:00", "utc": "2030-02-28T08:35:16Z", "ms": 1898498116424.0107 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-02-27T11:50:14+02:00", "utc": "2030-02-27T09:50:14Z", "ms": 1898416214310.2424 }, "end": { "local": "2030-02-28T10:35:16+02:00", "utc": "2030-02-28T08:35:16Z", "ms": 1898498116424.0107 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-02-27", "window": { "start": { "local": "2030-02-27T06:23:39+02:00", "utc": "2030-02-27T04:23:39Z", "ms": 1898396619265.3691 }, "end": { "local": "2030-02-27T06:23:39+02:00", "utc": "2030-02-27T04:23:39Z", "ms": 1898396619265.3691 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-02-28", "window": { "start": { "local": "2030-02-28T06:22:35+02:00", "utc": "2030-02-28T04:22:35Z", "ms": 1898482955296.2327 }, "end": { "local": "2030-02-28T06:22:35+02:00", "utc": "2030-02-28T04:22:35Z", "ms": 1898482955296.2327 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:50 on Wed 27 Feb to 10:35 on Thu 28 Feb.", "fact": "2030-02-27T09:50:14Z → 2030-02-28T08:35:16Z" }, { "step": "kaala", "text": "Sunrise is at 06:24 on the 27th and 06:23 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is 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 15161 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Giza, 2030: Thursday 28 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": "2030-02-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-02-28", "confidence": "determinate" } ], "quote": "In Giza, Vijayā Ekādaśī 2030 falls on Thursday 28 February. Ekādaśī runs from 11:50 on Wed 27 Feb to 10:35 on Thu 28 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-02-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-03-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29899, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-03-01T09:35:33+02:00", "utc": "2030-03-01T07:35:33Z", "ms": 1898580932880.0698 }, "end": { "local": "2030-03-02T08:53:16+02:00", "utc": "2030-03-02T06:53:16Z", "ms": 1898664796459.8599 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-03-01T09:35:33+02:00", "utc": "2030-03-01T07:35:33Z", "ms": 1898580932880.0698 }, "end": { "local": "2030-03-02T08:53:16+02:00", "utc": "2030-03-02T06:53:16Z", "ms": 1898664796459.8599 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-03-01", "window": { "start": { "local": "2030-03-01T17:53:52+02:00", "utc": "2030-03-01T15:53:52Z", "ms": 1898610832034.4565 }, "end": { "local": "2030-03-01T19:33:24+02:00", "utc": "2030-03-01T17:33:24Z", "ms": 1898616804475.5269 } }, "covered_min": 100, "window_min": 100, "qualifies": true }, { "local_date": "2030-03-02", "window": { "start": { "local": "2030-03-02T17:54:34+02:00", "utc": "2030-03-02T15:54:34Z", "ms": 1898697273763.0327 }, "end": { "local": "2030-03-02T19:33:52+02:00", "utc": "2030-03-02T17:33:52Z", "ms": 1898703231849.4678 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:36 on Fri 1 Mar to 08:53 on Sat 2 Mar.", "fact": "2030-03-01T07:35:33Z → 2030-03-02T06:53:16Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:54–19:33 on the 1st, 17:55–19:34 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 100 of 100 minutes on the 1st and 0 of 99 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29899 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Friday 1 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": "2030-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-01", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Friday 1 March. Trayodaśī runs from 09:36 on Fri 1 Mar to 08:53 on Sat 2 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-03-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28844, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-03-02T08:53:16+02:00", "utc": "2030-03-02T06:53:16Z", "ms": 1898664796459.8599 }, "end": { "local": "2030-03-03T08:31:41+02:00", "utc": "2030-03-03T06:31:41Z", "ms": 1898749900751.822 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-03-02T08:53:16+02:00", "utc": "2030-03-02T06:53:16Z", "ms": 1898664796459.8599 }, "end": { "local": "2030-03-03T08:31:41+02:00", "utc": "2030-03-03T06:31:41Z", "ms": 1898749900751.822 } }, "kaala": "nishita", "days": [ { "local_date": "2030-03-01", "window": { "start": { "local": "2030-03-01T23:43:09+02:00", "utc": "2030-03-01T21:43:09Z", "ms": 1898631788688.4702 }, "end": { "local": "2030-03-02T00:31:09+02:00", "utc": "2030-03-01T22:31:09Z", "ms": 1898634668688.4702 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-03-02", "window": { "start": { "local": "2030-03-02T23:42:57+02:00", "utc": "2030-03-02T21:42:57Z", "ms": 1898718176587.1638 }, "end": { "local": "2030-03-03T00:30:57+02:00", "utc": "2030-03-02T22:30:57Z", "ms": 1898721056587.1638 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:53 on Sat 2 Mar to 08:32 on Sun 3 Mar.", "fact": "2030-03-02T06:53:16Z → 2030-03-03T06:31:41Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:43–00:31 on the 1st, 23:43–00:31 on the 2nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 28844 s" }, { "step": "ruling", "text": "Mahāśivarātri, Giza, 2030: Saturday 2 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": "2030-03-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-02", "confidence": "determinate" } ], "quote": "In Giza, Mahāśivarātri 2030 falls on Saturday 2 March. Caturdaśī runs from 08:53 on Sat 2 Mar to 08:32 on Sun 3 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-03-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-08", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 143, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-03-07T11:44:46+02:00", "utc": "2030-03-07T09:44:46Z", "ms": 1899107086455.5396 }, "end": { "local": "2030-03-08T13:50:04+02:00", "utc": "2030-03-08T11:50:04Z", "ms": 1899201004143.374 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-03-07T11:44:46+02:00", "utc": "2030-03-07T09:44:46Z", "ms": 1899107086455.5396 }, "end": { "local": "2030-03-08T13:50:04+02:00", "utc": "2030-03-08T11:50:04Z", "ms": 1899201004143.374 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-03-07", "window": { "start": { "local": "2030-03-07T11:42:24+02:00", "utc": "2030-03-07T09:42:24Z", "ms": 1899106943732.7625 }, "end": { "local": "2030-03-07T12:30:24+02:00", "utc": "2030-03-07T10:30:24Z", "ms": 1899109823732.7625 } }, "covered_min": 46, "window_min": 48, "qualifies": true }, { "local_date": "2030-03-08", "window": { "start": { "local": "2030-03-08T11:42:09+02:00", "utc": "2030-03-08T09:42:09Z", "ms": 1899193329302.8633 }, "end": { "local": "2030-03-08T12:30:09+02:00", "utc": "2030-03-08T10:30:09Z", "ms": 1899196209302.8633 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:45 on Thu 7 Mar to 13:50 on Fri 8 Mar.", "fact": "2030-03-07T09:44:46Z → 2030-03-08T11:50:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 7th, 11:42–12:30 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 46 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 143 s < 300 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Friday 8 March.", "fact": "confidence: boundary (margin, 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": "2030-03-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-08", "confidence": "boundary" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Friday 8 March. Caturthī runs from 11:45 on Thu 7 Mar to 13:50 on Fri 8 Mar and covers all of madhyāhna that midday. It also reaches the previous midday for 46 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 23 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-03-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-03-15", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11819, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-03-15T02:37:27+02:00", "utc": "2030-03-15T00:37:27Z", "ms": 1899765447193.7292 }, "end": { "local": "2030-03-16T02:47:19+02:00", "utc": "2030-03-16T00:47:19Z", "ms": 1899852438791.6301 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-03-15T02:37:27+02:00", "utc": "2030-03-15T00:37:27Z", "ms": 1899765447193.7292 }, "end": { "local": "2030-03-16T02:47:19+02:00", "utc": "2030-03-16T00:47:19Z", "ms": 1899852438791.6301 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-03-15", "window": { "start": { "local": "2030-03-15T06:05:29+02:00", "utc": "2030-03-15T04:05:29Z", "ms": 1899777928980.91 }, "end": { "local": "2030-03-15T06:05:29+02:00", "utc": "2030-03-15T04:05:29Z", "ms": 1899777928980.91 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-03-16", "window": { "start": { "local": "2030-03-16T06:04:17+02:00", "utc": "2030-03-16T04:04:17Z", "ms": 1899864257341.8767 }, "end": { "local": "2030-03-16T06:04:17+02:00", "utc": "2030-03-16T04:04:17Z", "ms": 1899864257341.8767 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:37 on Fri 15 Mar to 02:47 on Sat 16 Mar.", "fact": "2030-03-15T00:37:27Z → 2030-03-16T00:47:19Z" }, { "step": "kaala", "text": "Sunrise is at 06:05 on the 15th and 06:04 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11819 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Giza, 2030: Friday 15 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": "2030-03-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-15", "confidence": "determinate" } ], "quote": "In Giza, Āmalakī Ekādaśī 2030 falls on Friday 15 March. Ekādaśī runs from 02:37 on Fri 15 Mar to 02:47 on Sat 16 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-03-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-03-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17971, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-03-17T02:06:42+02:00", "utc": "2030-03-17T00:06:42Z", "ms": 1899936401573.6958 }, "end": { "local": "2030-03-18T00:39:35+02:00", "utc": "2030-03-17T22:39:35Z", "ms": 1900017574560.3037 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-03-17T02:06:42+02:00", "utc": "2030-03-17T00:06:42Z", "ms": 1899936401573.6958 }, "end": { "local": "2030-03-18T00:39:35+02:00", "utc": "2030-03-17T22:39:35Z", "ms": 1900017574560.3037 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-03-16", "window": { "start": { "local": "2030-03-16T18:03:46+02:00", "utc": "2030-03-16T16:03:46Z", "ms": 1899907426015.4004 }, "end": { "local": "2030-03-16T19:39:41+02:00", "utc": "2030-03-16T17:39:41Z", "ms": 1899913180608.2556 } }, "covered_min": 0, "window_min": 96, "qualifies": false }, { "local_date": "2030-03-17", "window": { "start": { "local": "2030-03-17T18:04:24+02:00", "utc": "2030-03-17T16:04:24Z", "ms": 1899993863541.7908 }, "end": { "local": "2030-03-17T19:40:04+02:00", "utc": "2030-03-17T17:40:04Z", "ms": 1899999603519.002 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:07 on Sun 17 Mar to 00:40 on Mon 18 Mar.", "fact": "2030-03-17T00:06:42Z → 2030-03-17T22:39:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:04–19:40 on the 16th, 18:04–19:40 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 96 minutes on the 16th and 96 of 96 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17971 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Sunday 17 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": "2030-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-17", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Sunday 17 March. Trayodaśī runs from 02:07 on Sun 17 Mar to 00:40 on Mon 18 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-03-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6652, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-03-18T22:33:08+02:00", "utc": "2030-03-18T20:33:08Z", "ms": 1900096388238.5593 }, "end": { "local": "2030-03-19T19:56:31+02:00", "utc": "2030-03-19T17:56:31Z", "ms": 1900173390545.0461 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-03-18T22:33:08+02:00", "utc": "2030-03-18T20:33:08Z", "ms": 1900096388238.5593 }, "end": { "local": "2030-03-19T19:56:31+02:00", "utc": "2030-03-19T17:56:31Z", "ms": 1900173390545.0461 } }, "kaala": "sayahna", "days": [ { "local_date": "2030-03-18", "window": { "start": { "local": "2030-03-18T15:40:23+02:00", "utc": "2030-03-18T13:40:23Z", "ms": 1900071623378.8118 }, "end": { "local": "2030-03-18T18:05:01+02:00", "utc": "2030-03-18T16:05:01Z", "ms": 1900080300880.796 } }, "covered_min": 0, "window_min": 145, "qualifies": false }, { "local_date": "2030-03-19", "window": { "start": { "local": "2030-03-19T15:40:39+02:00", "utc": "2030-03-19T13:40:39Z", "ms": 1900158038659.9585 }, "end": { "local": "2030-03-19T18:05:38+02:00", "utc": "2030-03-19T16:05:38Z", "ms": 1900166738050.0237 } }, "covered_min": 145, "window_min": 145, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:33 on Mon 18 Mar to 19:57 on Tue 19 Mar.", "fact": "2030-03-18T20:33:08Z → 2030-03-19T17:56:31Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:40–18:05 on the 18th, 15:41–18:06 on the 19th.", "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 145 minutes on the 18th and 145 of 145 on the 19th.", "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 6652 s" }, { "step": "ruling", "text": "Holikā Dahana, Giza, 2030: Tuesday 19 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": "2030-03-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-19", "confidence": "determinate" } ], "quote": "In Giza, Holikā Dahana 2030 falls on Tuesday 19 March. Pūrṇimā runs from 22:33 on Mon 18 Mar to 19:57 on Tue 19 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6652, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-03-18T22:33:08+02:00", "utc": "2030-03-18T20:33:08Z", "ms": 1900096388238.5593 }, "end": { "local": "2030-03-19T19:56:31+02:00", "utc": "2030-03-19T17:56:31Z", "ms": 1900173390545.0461 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2030-03-18T22:33:08+02:00", "utc": "2030-03-18T20:33:08Z", "ms": 1900096388238.5593 }, "end": { "local": "2030-03-19T19:56:31+02:00", "utc": "2030-03-19T17:56:31Z", "ms": 1900173390545.0461 } }, "kaala": "sayahna", "days": [ { "local_date": "2030-03-18", "window": { "start": { "local": "2030-03-18T15:40:23+02:00", "utc": "2030-03-18T13:40:23Z", "ms": 1900071623378.8118 }, "end": { "local": "2030-03-18T18:05:01+02:00", "utc": "2030-03-18T16:05:01Z", "ms": 1900080300880.796 } }, "covered_min": 0, "window_min": 145, "qualifies": false }, { "local_date": "2030-03-19", "window": { "start": { "local": "2030-03-19T15:40:39+02:00", "utc": "2030-03-19T13:40:39Z", "ms": 1900158038659.9585 }, "end": { "local": "2030-03-19T18:05:38+02:00", "utc": "2030-03-19T16:05:38Z", "ms": 1900166738050.0237 } }, "covered_min": 145, "window_min": 145, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2030-03-19", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:33 on Mon 18 Mar to 19:57 on Tue 19 Mar.", "fact": "2030-03-18T20:33:08Z → 2030-03-19T17:56:31Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:40–18:05 on the 18th, 15:41–18:06 on the 19th.", "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 145 minutes on the 18th and 145 of 145 on the 19th.", "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 6652 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Tuesday 19 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Giza, 2030: Wednesday 20 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": "2030-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-20", "confidence": "determinate" } ], "quote": "In Giza, Holī 2030 falls on Wednesday 20 March. It is kept the day after Holikā Dahana, which falls on Tuesday 19 March. Pūrṇimā runs from 22:33 on Mon 18 Mar to 19:57 on Tue 19 Mar and covers all of sāyāhna on the 19th.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36178, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2030-03-19T19:56:31+02:00", "utc": "2030-03-19T17:56:31Z", "ms": 1900173390545.0461 }, "end": { "local": "2030-03-20T16:59:44+02:00", "utc": "2030-03-20T14:59:44Z", "ms": 1900249184080.1514 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-03-19T19:56:31+02:00", "utc": "2030-03-19T17:56:31Z", "ms": 1900173390545.0461 }, "end": { "local": "2030-03-20T16:59:44+02:00", "utc": "2030-03-20T14:59:44Z", "ms": 1900249184080.1514 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-03-20", "window": { "start": { "local": "2030-03-20T05:59:29+02:00", "utc": "2030-03-20T03:59:29Z", "ms": 1900209568679.355 }, "end": { "local": "2030-03-20T05:59:29+02:00", "utc": "2030-03-20T03:59:29Z", "ms": 1900209568679.355 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-03-21", "window": { "start": { "local": "2030-03-21T05:58:16+02:00", "utc": "2030-03-21T03:58:16Z", "ms": 1900295896141.2637 }, "end": { "local": "2030-03-21T05:58:16+02:00", "utc": "2030-03-21T03:58:16Z", "ms": 1900295896141.2637 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:57 on Tue 19 Mar to 17:00 on Wed 20 Mar.", "fact": "2030-03-19T17:56:31Z → 2030-03-20T14:59:44Z" }, { "step": "kaala", "text": "Sunrise is at 05:59 on the 20th and 05:58 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 36178 s" }, { "step": "ruling", "text": "Vasantotsava, Giza, 2030: Wednesday 20 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": "2030-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-20", "confidence": "determinate" } ], "quote": "In Giza, Vasantotsava 2030 falls on Wednesday 20 March. Pratipadā runs from 19:57 on Tue 19 Mar to 17:00 on Wed 20 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-03-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37263, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-03-22T10:45:45+02:00", "utc": "2030-03-22T08:45:45Z", "ms": 1900399545335.1047 }, "end": { "local": "2030-03-23T07:46:43+02:00", "utc": "2030-03-23T05:46:43Z", "ms": 1900475202934.932 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-03-22T10:45:45+02:00", "utc": "2030-03-22T08:45:45Z", "ms": 1900399545335.1047 }, "end": { "local": "2030-03-23T07:46:43+02:00", "utc": "2030-03-23T05:46:43Z", "ms": 1900475202934.932 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-03-21", "window": { "start": { "local": "2030-03-21T20:16:43+02:00", "utc": "2030-03-21T18:16:43Z", "ms": 1900347403259.5488 }, "end": { "local": "2030-03-21T20:16:43+02:00", "utc": "2030-03-21T18:16:43Z", "ms": 1900347403259.5488 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-03-22", "window": { "start": { "local": "2030-03-22T21:25:40+02:00", "utc": "2030-03-22T19:25:40Z", "ms": 1900437939745.2717 }, "end": { "local": "2030-03-22T21:25:40+02:00", "utc": "2030-03-22T19:25:40Z", "ms": 1900437939745.2717 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:46 on Fri 22 Mar to 07:47 on Sat 23 Mar.", "fact": "2030-03-22T08:45:45Z → 2030-03-23T05:46:43Z" }, { "step": "kaala", "text": "Moonrise is at 20:17 on the 21st and 21:26 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37263 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Friday 22 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": "2030-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-22", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Friday 22 March. Caturthī runs from 10:46 on Fri 22 Mar to 07:47 on Sat 23 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-03-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38595, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-03-26T00:41:06+02:00", "utc": "2030-03-25T22:41:06Z", "ms": 1900708866108.5642 }, "end": { "local": "2030-03-26T23:08:18+02:00", "utc": "2030-03-26T21:08:18Z", "ms": 1900789698431.0017 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-03-26T00:41:06+02:00", "utc": "2030-03-25T22:41:06Z", "ms": 1900708866108.5642 }, "end": { "local": "2030-03-26T23:08:18+02:00", "utc": "2030-03-26T21:08:18Z", "ms": 1900789698431.0017 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-03-25", "window": { "start": { "local": "2030-03-25T11:37:22+02:00", "utc": "2030-03-25T09:37:22Z", "ms": 1900661841985.1714 }, "end": { "local": "2030-03-25T12:25:22+02:00", "utc": "2030-03-25T10:25:22Z", "ms": 1900664721985.1714 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-03-26", "window": { "start": { "local": "2030-03-26T11:37:04+02:00", "utc": "2030-03-26T09:37:04Z", "ms": 1900748223895.5527 }, "end": { "local": "2030-03-26T12:25:04+02:00", "utc": "2030-03-26T10:25:04Z", "ms": 1900751103895.5527 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:41 on Tue 26 Mar to 23:08 on Tue 26 Mar.", "fact": "2030-03-25T22:41:06Z → 2030-03-26T21:08:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 25th, 11:37–12:25 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 38595 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Giza, 2030: Tuesday 26 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": "2030-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-26", "confidence": "determinate" } ], "quote": "In Giza, Śītalāṣṭamī 2030 falls on Tuesday 26 March. Aṣṭamī runs from 00:41 on Tue 26 Mar to 23:08 on Tue 26 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-03-29", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30454, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-03-28T21:21:01+02:00", "utc": "2030-03-28T19:21:01Z", "ms": 1900956061469.796 }, "end": { "local": "2030-03-29T21:04:58+02:00", "utc": "2030-03-29T19:04:58Z", "ms": 1901041498193.2734 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-03-28T21:21:01+02:00", "utc": "2030-03-28T19:21:01Z", "ms": 1900956061469.796 }, "end": { "local": "2030-03-29T21:04:58+02:00", "utc": "2030-03-29T19:04:58Z", "ms": 1901041498193.2734 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-03-29", "window": { "start": { "local": "2030-03-29T05:48:35+02:00", "utc": "2030-03-29T03:48:35Z", "ms": 1900986515323.3662 }, "end": { "local": "2030-03-29T05:48:35+02:00", "utc": "2030-03-29T03:48:35Z", "ms": 1900986515323.3662 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-03-30", "window": { "start": { "local": "2030-03-30T05:47:23+02:00", "utc": "2030-03-30T03:47:23Z", "ms": 1901072843097.581 }, "end": { "local": "2030-03-30T05:47:23+02:00", "utc": "2030-03-30T03:47:23Z", "ms": 1901072843097.581 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:21 on Thu 28 Mar to 21:05 on Fri 29 Mar.", "fact": "2030-03-28T19:21:01Z → 2030-03-29T19:04:58Z" }, { "step": "kaala", "text": "Sunrise is at 05:49 on the 29th and 05:47 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30454 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Giza, 2030: Friday 29 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": "2030-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-29", "confidence": "determinate" } ], "quote": "In Giza, Pāpamocanī Ekādaśī 2030 falls on Friday 29 March. Ekādaśī runs from 21:21 on Thu 28 Mar to 21:05 on Fri 29 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-03-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-03-31", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5287, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-03-30T21:12:59+02:00", "utc": "2030-03-30T19:12:59Z", "ms": 1901128378763.6846 }, "end": { "local": "2030-03-31T21:44:57+02:00", "utc": "2030-03-31T19:44:57Z", "ms": 1901216696505.4976 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-03-30T21:12:59+02:00", "utc": "2030-03-30T19:12:59Z", "ms": 1901128378763.6846 }, "end": { "local": "2030-03-31T21:44:57+02:00", "utc": "2030-03-31T19:44:57Z", "ms": 1901216696505.4976 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-03-30", "window": { "start": { "local": "2030-03-30T18:12:21+02:00", "utc": "2030-03-30T16:12:21Z", "ms": 1901117540602.7163 }, "end": { "local": "2030-03-30T19:44:51+02:00", "utc": "2030-03-30T17:44:51Z", "ms": 1901123091328.4956 } }, "covered_min": 0, "window_min": 93, "qualifies": false }, { "local_date": "2030-03-31", "window": { "start": { "local": "2030-03-31T18:12:57+02:00", "utc": "2030-03-31T16:12:57Z", "ms": 1901203976967.1274 }, "end": { "local": "2030-03-31T19:45:13+02:00", "utc": "2030-03-31T17:45:13Z", "ms": 1901209513264.0667 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:13 on Sat 30 Mar to 21:45 on Sun 31 Mar.", "fact": "2030-03-30T19:12:59Z → 2030-03-31T19:44:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:12–19:45 on the 30th, 18:13–19:45 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 93 minutes on the 30th and 92 of 92 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5287 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Sunday 31 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": "2030-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-31", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Sunday 31 March. Trayodaśī runs from 21:13 on Sat 30 Mar to 21:45 on Sun 31 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-03-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-03-31", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3203, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-03-31T21:44:57+02:00", "utc": "2030-03-31T19:44:57Z", "ms": 1901216696505.4976 }, "end": { "local": "2030-04-01T22:41:17+02:00", "utc": "2030-04-01T20:41:17Z", "ms": 1901306477056.93 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-03-31T21:44:57+02:00", "utc": "2030-03-31T19:44:57Z", "ms": 1901216696505.4976 }, "end": { "local": "2030-04-01T22:41:17+02:00", "utc": "2030-04-01T20:41:17Z", "ms": 1901306477056.93 } }, "kaala": "nishita", "days": [ { "local_date": "2030-03-31", "window": { "start": { "local": "2030-03-31T23:34:58+02:00", "utc": "2030-03-31T21:34:58Z", "ms": 1901223298080.6492 }, "end": { "local": "2030-04-01T00:22:58+02:00", "utc": "2030-03-31T22:22:58Z", "ms": 1901226178080.6492 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-04-01", "window": { "start": { "local": "2030-04-01T23:34:40+02:00", "utc": "2030-04-01T21:34:40Z", "ms": 1901309680449.98 }, "end": { "local": "2030-04-02T00:22:40+02:00", "utc": "2030-04-01T22:22:40Z", "ms": 1901312560449.98 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:45 on Sun 31 Mar to 22:41 on Mon 1 Apr.", "fact": "2030-03-31T19:44:57Z → 2030-04-01T20:41:17Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 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 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3203 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Sunday 31 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": "2030-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-03-31", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Sunday 31 March. Caturdaśī runs from 21:45 on Sun 31 Mar to 22:41 on Mon 1 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-03-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35144, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2030-04-03T00:02:33+02:00", "utc": "2030-04-02T22:02:33Z", "ms": 1901397753373.9028 }, "end": { "local": "2030-04-04T01:48:40+02:00", "utc": "2030-04-03T23:48:40Z", "ms": 1901490520244.1963 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-03T00:02:33+02:00", "utc": "2030-04-02T22:02:33Z", "ms": 1901397753373.9028 }, "end": { "local": "2030-04-04T01:48:40+02:00", "utc": "2030-04-03T23:48:40Z", "ms": 1901490520244.1963 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-03", "window": { "start": { "local": "2030-04-03T11:34:41+02:00", "utc": "2030-04-03T09:34:41Z", "ms": 1901439281142.6653 }, "end": { "local": "2030-04-03T12:22:41+02:00", "utc": "2030-04-03T10:22:41Z", "ms": 1901442161142.6653 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-04-04", "window": { "start": { "local": "2030-04-04T11:34:24+02:00", "utc": "2030-04-04T09:34:24Z", "ms": 1901525663795.7893 }, "end": { "local": "2030-04-04T12:22:24+02:00", "utc": "2030-04-04T10:22:24Z", "ms": 1901528543795.7893 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 00:03 on Wed 3 Apr to 01:49 on Thu 4 Apr.", "fact": "2030-04-02T22:02:33Z → 2030-04-03T23:48:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 3rd, 11:34–12:22 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35144 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Giza, 2030: Wednesday 3 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": "2030-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-03", "confidence": "determinate" } ], "quote": "In Giza, Navarātrārambha (Caitra) (Chaitra Navratri) 2030 falls on Wednesday 3 April. Pratipadā runs from 00:03 on Wed 3 Apr to 01:49 on Thu 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18469, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2030-04-05T03:57:55+02:00", "utc": "2030-04-05T01:57:55Z", "ms": 1901584675497.4001 }, "end": { "local": "2030-04-06T06:26:01+02:00", "utc": "2030-04-06T04:26:01Z", "ms": 1901679960569.9707 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-05T03:57:55+02:00", "utc": "2030-04-05T01:57:55Z", "ms": 1901584675497.4001 }, "end": { "local": "2030-04-06T06:26:01+02:00", "utc": "2030-04-06T04:26:01Z", "ms": 1901679960569.9707 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-05", "window": { "start": { "local": "2030-04-05T11:34:07+02:00", "utc": "2030-04-05T09:34:07Z", "ms": 1901612046611.8198 }, "end": { "local": "2030-04-05T12:22:07+02:00", "utc": "2030-04-05T10:22:07Z", "ms": 1901614926611.8198 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-04-06", "window": { "start": { "local": "2030-04-06T11:33:50+02:00", "utc": "2030-04-06T09:33:50Z", "ms": 1901698429606.0918 }, "end": { "local": "2030-04-06T12:21:50+02:00", "utc": "2030-04-06T10:21:50Z", "ms": 1901701309606.0918 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 03:58 on Fri 5 Apr to 06:26 on Sat 6 Apr.", "fact": "2030-04-05T01:57:55Z → 2030-04-06T04:26:01Z" }, { "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": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18469 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Giza, 2030: Friday 5 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": "2030-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-05", "confidence": "determinate" } ], "quote": "In Giza, Gaurī Tṛtīyā (Gangaur) 2030 falls on Friday 5 April. Tṛtīyā runs from 03:58 on Fri 5 Apr to 06:26 on Sat 6 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18469, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2030-04-05T03:57:55+02:00", "utc": "2030-04-05T01:57:55Z", "ms": 1901584675497.4001 }, "end": { "local": "2030-04-06T06:26:01+02:00", "utc": "2030-04-06T04:26:01Z", "ms": 1901679960569.9707 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-05T03:57:55+02:00", "utc": "2030-04-05T01:57:55Z", "ms": 1901584675497.4001 }, "end": { "local": "2030-04-06T06:26:01+02:00", "utc": "2030-04-06T04:26:01Z", "ms": 1901679960569.9707 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-05", "window": { "start": { "local": "2030-04-05T11:34:07+02:00", "utc": "2030-04-05T09:34:07Z", "ms": 1901612046611.8198 }, "end": { "local": "2030-04-05T12:22:07+02:00", "utc": "2030-04-05T10:22:07Z", "ms": 1901614926611.8198 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-04-06", "window": { "start": { "local": "2030-04-06T11:33:50+02:00", "utc": "2030-04-06T09:33:50Z", "ms": 1901698429606.0918 }, "end": { "local": "2030-04-06T12:21:50+02:00", "utc": "2030-04-06T10:21:50Z", "ms": 1901701309606.0918 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 03:58 on Fri 5 Apr to 06:26 on Sat 6 Apr.", "fact": "2030-04-05T01:57:55Z → 2030-04-06T04:26:01Z" }, { "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": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18469 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Giza, 2030: Friday 5 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": "2030-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-05", "confidence": "determinate" } ], "quote": "In Giza, Saubhāgya Śayana Vrata 2030 falls on Friday 5 April. Tṛtīyā runs from 03:58 on Fri 5 Apr to 06:26 on Sat 6 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-04-06", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8894, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-04-06T06:26:01+02:00", "utc": "2030-04-06T04:26:01Z", "ms": 1901679960569.9707 }, "end": { "local": "2030-04-07T09:05:19+02:00", "utc": "2030-04-07T07:05:19Z", "ms": 1901775919167.125 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-06T06:26:01+02:00", "utc": "2030-04-06T04:26:01Z", "ms": 1901679960569.9707 }, "end": { "local": "2030-04-07T09:05:19+02:00", "utc": "2030-04-07T07:05:19Z", "ms": 1901775919167.125 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-06", "window": { "start": { "local": "2030-04-06T11:33:50+02:00", "utc": "2030-04-06T09:33:50Z", "ms": 1901698429606.0918 }, "end": { "local": "2030-04-06T12:21:50+02:00", "utc": "2030-04-06T10:21:50Z", "ms": 1901701309606.0918 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-04-07", "window": { "start": { "local": "2030-04-07T11:33:33+02:00", "utc": "2030-04-07T09:33:33Z", "ms": 1901784812793.956 }, "end": { "local": "2030-04-07T12:21:33+02:00", "utc": "2030-04-07T10:21:33Z", "ms": 1901787692793.956 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:26 on Sat 6 Apr to 09:05 on Sun 7 Apr.", "fact": "2030-04-06T04:26:01Z → 2030-04-07T07:05:19Z" }, { "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": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8894 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Saturday 6 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": "2030-04-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-06", "confidence": "determinate" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Saturday 6 April. Caturthī runs from 06:26 on Sat 6 Apr to 09:05 on Sun 7 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-04-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 700, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2030-04-07T09:05:19+02:00", "utc": "2030-04-07T07:05:19Z", "ms": 1901775919167.125 }, "end": { "local": "2030-04-08T11:44:56+02:00", "utc": "2030-04-08T09:44:56Z", "ms": 1901871895985.988 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-07T09:05:19+02:00", "utc": "2030-04-07T07:05:19Z", "ms": 1901775919167.125 }, "end": { "local": "2030-04-08T11:44:56+02:00", "utc": "2030-04-08T09:44:56Z", "ms": 1901871895985.988 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-07", "window": { "start": { "local": "2030-04-07T11:33:33+02:00", "utc": "2030-04-07T09:33:33Z", "ms": 1901784812793.956 }, "end": { "local": "2030-04-07T12:21:33+02:00", "utc": "2030-04-07T10:21:33Z", "ms": 1901787692793.956 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-04-08", "window": { "start": { "local": "2030-04-08T11:33:16+02:00", "utc": "2030-04-08T09:33:16Z", "ms": 1901871196190.8057 }, "end": { "local": "2030-04-08T12:21:16+02:00", "utc": "2030-04-08T10:21:16Z", "ms": 1901874076190.8057 } }, "covered_min": 12, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 09:05 on Sun 7 Apr to 11:45 on Mon 8 Apr.", "fact": "2030-04-07T07:05:19Z → 2030-04-08T09:44:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 7th, 11:33–12:21 on the 8th.", "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 7th and 12 of 48 on the 8th.", "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 700 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Giza, 2030: Sunday 7 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": "2030-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-07", "confidence": "determinate" } ], "quote": "In Giza, Lakṣmī Pañcamī 2030 falls on Sunday 7 April. Pañcamī runs from 09:05 on Sun 7 Apr to 11:45 on Mon 8 Apr and covers all of madhyāhna that midday. It also reaches the next midday for 12 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13826, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-04-10T16:11:10+02:00", "utc": "2030-04-10T14:11:10Z", "ms": 1902060670018.4675 }, "end": { "local": "2030-04-11T17:31:33+02:00", "utc": "2030-04-11T15:31:33Z", "ms": 1902151892873.237 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-10T16:11:10+02:00", "utc": "2030-04-10T14:11:10Z", "ms": 1902060670018.4675 }, "end": { "local": "2030-04-11T17:31:33+02:00", "utc": "2030-04-11T15:31:33Z", "ms": 1902151892873.237 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-10", "window": { "start": { "local": "2030-04-10T11:32:44+02:00", "utc": "2030-04-10T09:32:44Z", "ms": 1902043963673.3687 }, "end": { "local": "2030-04-10T12:20:44+02:00", "utc": "2030-04-10T10:20:44Z", "ms": 1902046843673.3687 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-04-11", "window": { "start": { "local": "2030-04-11T11:32:28+02:00", "utc": "2030-04-11T09:32:28Z", "ms": 1902130347790.3032 }, "end": { "local": "2030-04-11T12:20:28+02:00", "utc": "2030-04-11T10:20:28Z", "ms": 1902133227790.3032 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:11 on Wed 10 Apr to 17:32 on Thu 11 Apr.", "fact": "2030-04-10T14:11:10Z → 2030-04-11T15:31:33Z" }, { "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": "Aṣṭamī 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: paraviddha → only-day · margin 13826 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Giza, 2030: Thursday 11 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": "2030-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-11", "confidence": "determinate" } ], "quote": "In Giza, Bhavānī Utpatti 2030 falls on Thursday 11 April. Aṣṭamī runs from 16:11 on Wed 10 Apr to 17:32 on Thu 11 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18665, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2030-04-11T17:31:33+02:00", "utc": "2030-04-11T15:31:33Z", "ms": 1902151892873.237 }, "end": { "local": "2030-04-12T18:03:55+02:00", "utc": "2030-04-12T16:03:55Z", "ms": 1902240234542.6704 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-11T17:31:33+02:00", "utc": "2030-04-11T15:31:33Z", "ms": 1902151892873.237 }, "end": { "local": "2030-04-12T18:03:55+02:00", "utc": "2030-04-12T16:03:55Z", "ms": 1902240234542.6704 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-11", "window": { "start": { "local": "2030-04-11T11:32:28+02:00", "utc": "2030-04-11T09:32:28Z", "ms": 1902130347790.3032 }, "end": { "local": "2030-04-11T12:20:28+02:00", "utc": "2030-04-11T10:20:28Z", "ms": 1902133227790.3032 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-04-12", "window": { "start": { "local": "2030-04-12T11:32:12+02:00", "utc": "2030-04-12T09:32:12Z", "ms": 1902216732178.7827 }, "end": { "local": "2030-04-12T12:20:12+02:00", "utc": "2030-04-12T10:20:12Z", "ms": 1902219612178.7827 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:32 on Thu 11 Apr to 18:04 on Fri 12 Apr.", "fact": "2030-04-11T15:31:33Z → 2030-04-12T16:03:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:32–12:20 on the 11th, 11:32–12:20 on the 12th.", "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 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18665 s" }, { "step": "ruling", "text": "Rāma Navamī, Giza, 2030: Friday 12 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": "2030-04-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-12", "confidence": "determinate" } ], "quote": "In Giza, Rāma Navamī 2030 falls on Friday 12 April. Navamī runs from 17:32 on Thu 11 Apr to 18:04 on Fri 12 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3461, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2030-04-14T06:27:35+02:00", "utc": "2030-04-14T04:27:35Z", "ms": 1902371255447.44 }, "end": { "local": "2030-05-15T04:17:26+03:00", "utc": "2030-05-15T01:17:26Z", "ms": 1905038245799.8884 } }, "span": { "of": "transit", "start": { "local": "2030-04-14T06:27:35+02:00", "utc": "2030-04-14T04:27:35Z", "ms": 1902371255447.44 }, "end": { "local": "2030-04-14T06:27:35+02:00", "utc": "2030-04-14T04:27:35Z", "ms": 1902371255447.44 } }, "kaala": "day", "days": [ { "local_date": "2030-04-13", "window": { "start": { "local": "2030-04-13T05:31:02+02:00", "utc": "2030-04-13T03:31:02Z", "ms": 1902281461622.9893 }, "end": { "local": "2030-04-14T05:29:55+02:00", "utc": "2030-04-14T03:29:55Z", "ms": 1902367794650.8203 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "2030-04-14", "window": { "start": { "local": "2030-04-14T05:29:55+02:00", "utc": "2030-04-14T03:29:55Z", "ms": 1902367794650.8203 }, "end": { "local": "2030-04-15T05:28:48+02:00", "utc": "2030-04-15T03:28:48Z", "ms": 1902454128236.8904 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 06:28 on Sun 14 Apr.", "fact": "2030-04-14T04:27:35Z · 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 3461 s" }, { "step": "ruling", "text": "Vaiśākhī, Giza, 2030: Sunday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2030-04-14", "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": "2030-04-14", "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 Giza, Vaiśākhī 2030 falls on Sunday 14 April. The Sun enters Meṣa at 06:28 on Sun 14 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-04-14", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39769, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-04-13T17:44:07+02:00", "utc": "2030-04-13T15:44:07Z", "ms": 1902325447075.4321 }, "end": { "local": "2030-04-14T16:32:44+02:00", "utc": "2030-04-14T14:32:44Z", "ms": 1902407563966.9653 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-13T17:44:07+02:00", "utc": "2030-04-13T15:44:07Z", "ms": 1902325447075.4321 }, "end": { "local": "2030-04-14T16:32:44+02:00", "utc": "2030-04-14T14:32:44Z", "ms": 1902407563966.9653 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-04-13", "window": { "start": { "local": "2030-04-13T05:31:02+02:00", "utc": "2030-04-13T03:31:02Z", "ms": 1902281461622.9893 }, "end": { "local": "2030-04-13T05:31:02+02:00", "utc": "2030-04-13T03:31:02Z", "ms": 1902281461622.9893 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-04-14", "window": { "start": { "local": "2030-04-14T05:29:55+02:00", "utc": "2030-04-14T03:29:55Z", "ms": 1902367794650.8203 }, "end": { "local": "2030-04-14T05:29:55+02:00", "utc": "2030-04-14T03:29:55Z", "ms": 1902367794650.8203 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:44 on Sat 13 Apr to 16:33 on Sun 14 Apr.", "fact": "2030-04-13T15:44:07Z → 2030-04-14T14:32:44Z" }, { "step": "kaala", "text": "Sunrise is at 05:31 on the 13th and 05:30 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 39769 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Giza, 2030: Sunday 14 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": "2030-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-14", "confidence": "determinate" } ], "quote": "In Giza, Kāmadā Ekādaśī 2030 falls on Sunday 14 April. Ekādaśī runs from 17:44 on Sat 13 Apr to 16:33 on Sun 14 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-04-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-04-15", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13668, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-04-15T14:34:18+02:00", "utc": "2030-04-15T12:34:18Z", "ms": 1902486858232.4663 }, "end": { "local": "2030-04-16T11:56:19+02:00", "utc": "2030-04-16T09:56:19Z", "ms": 1902563779077.269 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-15T14:34:18+02:00", "utc": "2030-04-15T12:34:18Z", "ms": 1902486858232.4663 }, "end": { "local": "2030-04-16T11:56:19+02:00", "utc": "2030-04-16T09:56:19Z", "ms": 1902563779077.269 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-04-15", "window": { "start": { "local": "2030-04-15T18:22:06+02:00", "utc": "2030-04-15T16:22:06Z", "ms": 1902500526039.3892 }, "end": { "local": "2030-04-15T19:50:51+02:00", "utc": "2030-04-15T17:50:51Z", "ms": 1902505850888.7275 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "2030-04-16", "window": { "start": { "local": "2030-04-16T18:22:43+02:00", "utc": "2030-04-16T16:22:43Z", "ms": 1902586963151.3828 }, "end": { "local": "2030-04-16T19:51:14+02:00", "utc": "2030-04-16T17:51:14Z", "ms": 1902592274357.5024 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:34 on Mon 15 Apr to 11:56 on Tue 16 Apr.", "fact": "2030-04-15T12:34:18Z → 2030-04-16T09:56:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:22–19:51 on the 15th, 18:23–19:51 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 89 of 89 minutes on the 15th and 0 of 89 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 13668 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Monday 15 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": "2030-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-15", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Monday 15 April. Trayodaśī runs from 14:34 on Mon 15 Apr to 11:56 on Tue 16 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-04-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1374, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-04-15T14:34:18+02:00", "utc": "2030-04-15T12:34:18Z", "ms": 1902486858232.4663 }, "end": { "local": "2030-04-16T11:56:19+02:00", "utc": "2030-04-16T09:56:19Z", "ms": 1902563779077.269 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-15T14:34:18+02:00", "utc": "2030-04-15T12:34:18Z", "ms": 1902486858232.4663 }, "end": { "local": "2030-04-16T11:56:19+02:00", "utc": "2030-04-16T09:56:19Z", "ms": 1902563779077.269 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-15", "window": { "start": { "local": "2030-04-15T11:31:27+02:00", "utc": "2030-04-15T09:31:27Z", "ms": 1902475887138.1396 }, "end": { "local": "2030-04-15T12:19:27+02:00", "utc": "2030-04-15T10:19:27Z", "ms": 1902478767138.1396 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-04-16", "window": { "start": { "local": "2030-04-16T11:31:13+02:00", "utc": "2030-04-16T09:31:13Z", "ms": 1902562272780.4053 }, "end": { "local": "2030-04-16T12:19:13+02:00", "utc": "2030-04-16T10:19:13Z", "ms": 1902565152780.4053 } }, "covered_min": 25, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:34 on Mon 15 Apr to 11:56 on Tue 16 Apr.", "fact": "2030-04-15T12:34:18Z → 2030-04-16T09:56:19Z" }, { "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": "Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 25 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1374 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Giza, 2030: Tuesday 16 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": "2030-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-16", "confidence": "determinate" } ], "quote": "In Giza, Anaṅga Trayodaśī 2030 falls on Tuesday 16 April. Trayodaśī runs from 14:34 on Mon 15 Apr to 11:56 on Tue 16 Apr and covers 25 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1374, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-04-16T11:56:19+02:00", "utc": "2030-04-16T09:56:19Z", "ms": 1902563779077.269 }, "end": { "local": "2030-04-17T08:48:08+02:00", "utc": "2030-04-17T06:48:08Z", "ms": 1902638887581.5247 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-16T11:56:19+02:00", "utc": "2030-04-16T09:56:19Z", "ms": 1902563779077.269 }, "end": { "local": "2030-04-17T08:48:08+02:00", "utc": "2030-04-17T06:48:08Z", "ms": 1902638887581.5247 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-16", "window": { "start": { "local": "2030-04-16T11:31:13+02:00", "utc": "2030-04-16T09:31:13Z", "ms": 1902562272780.4053 }, "end": { "local": "2030-04-16T12:19:13+02:00", "utc": "2030-04-16T10:19:13Z", "ms": 1902565152780.4053 } }, "covered_min": 23, "window_min": 48, "qualifies": true }, { "local_date": "2030-04-17", "window": { "start": { "local": "2030-04-17T11:30:59+02:00", "utc": "2030-04-17T09:30:59Z", "ms": 1902648658781.221 }, "end": { "local": "2030-04-17T12:18:59+02:00", "utc": "2030-04-17T10:18:59Z", "ms": 1902651538781.221 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:56 on Tue 16 Apr to 08:48 on Wed 17 Apr.", "fact": "2030-04-16T09:56:19Z → 2030-04-17T06:48:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:31–12:19 on the 16th, 11:31–12:19 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 23 of 48 minutes on the 16th and 0 of 48 on the 17th.", "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 1374 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Giza, 2030: Tuesday 16 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": "2030-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-16", "confidence": "determinate" } ], "quote": "In Giza, Viṣṇudamanaka Caturdaśī 2030 falls on Tuesday 16 April. Caturdaśī runs from 11:56 on Tue 16 Apr to 08:48 on Wed 17 Apr and covers 23 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9771, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-04-17T08:48:08+02:00", "utc": "2030-04-17T06:48:08Z", "ms": 1902638887581.5247 }, "end": { "local": "2030-04-18T05:20:02+02:00", "utc": "2030-04-18T03:20:02Z", "ms": 1902712802323.3093 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2030-04-17T08:48:08+02:00", "utc": "2030-04-17T06:48:08Z", "ms": 1902638887581.5247 }, "end": { "local": "2030-04-18T05:20:02+02:00", "utc": "2030-04-18T03:20:02Z", "ms": 1902712802323.3093 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-04-17", "window": { "start": { "local": "2030-04-17T11:30:59+02:00", "utc": "2030-04-17T09:30:59Z", "ms": 1902648658781.221 }, "end": { "local": "2030-04-17T12:18:59+02:00", "utc": "2030-04-17T10:18:59Z", "ms": 1902651538781.221 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-04-18", "window": { "start": { "local": "2030-04-18T11:30:45+02:00", "utc": "2030-04-18T09:30:45Z", "ms": 1902735045159.7603 }, "end": { "local": "2030-04-18T12:18:45+02:00", "utc": "2030-04-18T10:18:45Z", "ms": 1902737925159.7603 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:48 on Wed 17 Apr to 05:20 on Thu 18 Apr.", "fact": "2030-04-17T06:48:08Z → 2030-04-18T03:20:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:31–12:19 on the 17th, 11:31–12:19 on the 18th.", "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 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9771 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Giza, 2030: Wednesday 17 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": "2030-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-17", "confidence": "determinate" } ], "quote": "In Giza, Caitrī Pūrṇimā 2030 falls on Wednesday 17 April. Pūrṇimā runs from 08:48 on Wed 17 Apr to 05:20 on Thu 18 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-04-20", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9765, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-04-20T18:40:21+02:00", "utc": "2030-04-20T16:40:21Z", "ms": 1902933621269.8594 }, "end": { "local": "2030-04-21T15:33:41+02:00", "utc": "2030-04-21T13:33:41Z", "ms": 1903008821280.993 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-04-20T18:40:21+02:00", "utc": "2030-04-20T16:40:21Z", "ms": 1902933621269.8594 }, "end": { "local": "2030-04-21T15:33:41+02:00", "utc": "2030-04-21T13:33:41Z", "ms": 1903008821280.993 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-04-20", "window": { "start": { "local": "2030-04-20T21:23:06+02:00", "utc": "2030-04-20T19:23:06Z", "ms": 1902943386217.0942 }, "end": { "local": "2030-04-20T21:23:06+02:00", "utc": "2030-04-20T19:23:06Z", "ms": 1902943386217.0942 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-04-21", "window": { "start": { "local": "2030-04-21T22:26:21+02:00", "utc": "2030-04-21T20:26:21Z", "ms": 1903033581115.1318 }, "end": { "local": "2030-04-21T22:26:21+02:00", "utc": "2030-04-21T20:26:21Z", "ms": 1903033581115.1318 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:40 on Sat 20 Apr to 15:34 on Sun 21 Apr.", "fact": "2030-04-20T16:40:21Z → 2030-04-21T13:33:41Z" }, { "step": "kaala", "text": "Moonrise is at 21:23 on the 20th and 22:26 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 20th and is not 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 9765 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Saturday 20 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": "2030-04-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-20", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Saturday 20 April. Caturthī runs from 18:40 on Sat 20 Apr to 15:34 on Sun 21 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-04-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-04-28", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10468, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-04-27T09:10:53+03:00", "utc": "2030-04-27T06:10:53Z", "ms": 1903500652997.2092 }, "end": { "local": "2030-04-28T09:57:40+03:00", "utc": "2030-04-28T06:57:40Z", "ms": 1903589860470.1877 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-04-27T09:10:53+03:00", "utc": "2030-04-27T06:10:53Z", "ms": 1903500652997.2092 }, "end": { "local": "2030-04-28T09:57:40+03:00", "utc": "2030-04-28T06:57:40Z", "ms": 1903589860470.1877 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-04-27", "window": { "start": { "local": "2030-04-27T06:16:25+03:00", "utc": "2030-04-27T03:16:25Z", "ms": 1903490185407.0098 }, "end": { "local": "2030-04-27T06:16:25+03:00", "utc": "2030-04-27T03:16:25Z", "ms": 1903490185407.0098 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-04-28", "window": { "start": { "local": "2030-04-28T06:15:29+03:00", "utc": "2030-04-28T03:15:29Z", "ms": 1903576528874.3357 }, "end": { "local": "2030-04-28T06:15:29+03:00", "utc": "2030-04-28T03:15:29Z", "ms": 1903576528874.3357 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:11 on Sat 27 Apr to 09:58 on Sun 28 Apr.", "fact": "2030-04-27T06:10:53Z → 2030-04-28T06:57:40Z" }, { "step": "kaala", "text": "Sunrise is at 06:16 on the 27th and 06:15 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 10468 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Giza, 2030: Sunday 28 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": "2030-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-28", "confidence": "determinate" } ], "quote": "In Giza, Varūthinī Ekādaśī 2030 falls on Sunday 28 April. Ekādaśī runs from 09:11 on Sat 27 Apr to 09:58 on Sun 28 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-04-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-04-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23931, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-04-29T11:12:49+03:00", "utc": "2030-04-29T08:12:49Z", "ms": 1903680769118.6729 }, "end": { "local": "2030-04-30T12:52:45+03:00", "utc": "2030-04-30T09:52:45Z", "ms": 1903773164800.038 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-04-29T11:12:49+03:00", "utc": "2030-04-29T08:12:49Z", "ms": 1903680769118.6729 }, "end": { "local": "2030-04-30T12:52:45+03:00", "utc": "2030-04-30T09:52:45Z", "ms": 1903773164800.038 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-04-29", "window": { "start": { "local": "2030-04-29T19:30:57+03:00", "utc": "2030-04-29T16:30:57Z", "ms": 1903710656713.8125 }, "end": { "local": "2030-04-29T20:56:38+03:00", "utc": "2030-04-29T17:56:38Z", "ms": 1903715798306.9514 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2030-04-30", "window": { "start": { "local": "2030-04-30T19:31:36+03:00", "utc": "2030-04-30T16:31:36Z", "ms": 1903797095506.2935 }, "end": { "local": "2030-04-30T20:57:05+03:00", "utc": "2030-04-30T17:57:05Z", "ms": 1903802224775.5715 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:13 on Mon 29 Apr to 12:53 on Tue 30 Apr.", "fact": "2030-04-29T08:12:49Z → 2030-04-30T09:52:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:31–20:57 on the 29th, 19:32–20:57 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 86 of 86 minutes on the 29th and 0 of 85 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 23931 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Monday 29 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": "2030-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-29", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Monday 29 April. Trayodaśī runs from 11:13 on Mon 29 Apr to 12:53 on Tue 30 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-04-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-04-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34454, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-04-30T12:52:45+03:00", "utc": "2030-04-30T09:52:45Z", "ms": 1903773164800.038 }, "end": { "local": "2030-05-01T14:53:50+03:00", "utc": "2030-05-01T11:53:50Z", "ms": 1903866829883.0854 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-04-30T12:52:45+03:00", "utc": "2030-04-30T09:52:45Z", "ms": 1903773164800.038 }, "end": { "local": "2030-05-01T14:53:50+03:00", "utc": "2030-05-01T11:53:50Z", "ms": 1903866829883.0854 } }, "kaala": "nishita", "days": [ { "local_date": "2030-04-30", "window": { "start": { "local": "2030-05-01T00:28:10+03:00", "utc": "2030-04-30T21:28:10Z", "ms": 1903814890266.0862 }, "end": { "local": "2030-05-01T01:16:10+03:00", "utc": "2030-04-30T22:16:10Z", "ms": 1903817770266.0862 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-05-01", "window": { "start": { "local": "2030-05-02T00:28:03+03:00", "utc": "2030-05-01T21:28:03Z", "ms": 1903901283387.8765 }, "end": { "local": "2030-05-02T01:16:03+03:00", "utc": "2030-05-01T22:16:03Z", "ms": 1903904163387.8765 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:53 on Tue 30 Apr to 14:54 on Wed 1 May.", "fact": "2030-04-30T09:52:45Z → 2030-05-01T11:53:50Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 30th, 00:28–01:16 on the 1st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34454 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Tuesday 30 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": "2030-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-04-30", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Tuesday 30 April. Caturdaśī runs from 12:53 on Tue 30 Apr to 14:54 on Wed 1 May and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-04-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18665, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2030-05-04T22:20:44+03:00", "utc": "2030-05-04T19:20:44Z", "ms": 1904152844184.7644 }, "end": { "local": "2030-05-06T00:57:27+03:00", "utc": "2030-05-05T21:57:27Z", "ms": 1904248647223.2144 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-04T22:20:44+03:00", "utc": "2030-05-04T19:20:44Z", "ms": 1904152844184.7644 }, "end": { "local": "2030-05-06T00:57:27+03:00", "utc": "2030-05-05T21:57:27Z", "ms": 1904248647223.2144 } }, "kaala": "purvahna", "days": [ { "local_date": "2030-05-05", "window": { "start": { "local": "2030-05-05T06:09:21+03:00", "utc": "2030-05-05T03:09:21Z", "ms": 1904180960750.2578 }, "end": { "local": "2030-05-05T10:37:51+03:00", "utc": "2030-05-05T07:37:51Z", "ms": 1904197070634.384 } }, "covered_min": 268, "window_min": 268, "qualifies": true }, { "local_date": "2030-05-06", "window": { "start": { "local": "2030-05-06T06:08:32+03:00", "utc": "2030-05-06T03:08:32Z", "ms": 1904267312346.1907 }, "end": { "local": "2030-05-06T10:37:31+03:00", "utc": "2030-05-06T07:37:31Z", "ms": 1904283451385.969 } }, "covered_min": 0, "window_min": 269, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 22:21 on Sat 4 May to 00:57 on Mon 6 May.", "fact": "2030-05-04T19:20:44Z → 2030-05-05T21:57:27Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:09–10:38 on the 5th, 06:09–10:38 on the 6th.", "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 5th and 0 of 269 on the 6th.", "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 18665 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Giza, 2030: Sunday 5 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": "2030-05-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-05", "confidence": "determinate" } ], "quote": "In Giza, Akṣaya Tṛtīyā 2030 falls on Sunday 5 May. Tṛtīyā runs from 22:21 on Sat 4 May to 00:57 on Mon 6 May and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4912, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2030-05-04T22:20:44+03:00", "utc": "2030-05-04T19:20:44Z", "ms": 1904152844184.7644 }, "end": { "local": "2030-05-06T00:57:27+03:00", "utc": "2030-05-05T21:57:27Z", "ms": 1904248647223.2144 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-04T22:20:44+03:00", "utc": "2030-05-04T19:20:44Z", "ms": 1904152844184.7644 }, "end": { "local": "2030-05-06T00:57:27+03:00", "utc": "2030-05-05T21:57:27Z", "ms": 1904248647223.2144 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-05-04", "window": { "start": { "local": "2030-05-04T19:34:11+03:00", "utc": "2030-05-04T16:34:11Z", "ms": 1904142851346.5027 }, "end": { "local": "2030-05-04T20:58:53+03:00", "utc": "2030-05-04T17:58:53Z", "ms": 1904147932600.3367 } }, "covered_min": 0, "window_min": 85, "qualifies": false }, { "local_date": "2030-05-05", "window": { "start": { "local": "2030-05-05T19:34:50+03:00", "utc": "2030-05-05T16:34:50Z", "ms": 1904229290402.6365 }, "end": { "local": "2030-05-05T20:59:20+03:00", "utc": "2030-05-05T17:59:20Z", "ms": 1904234359995.1104 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 22:21 on Sat 4 May to 00:57 on Mon 6 May.", "fact": "2030-05-04T19:20:44Z → 2030-05-05T21:57:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:34–20:59 on the 4th, 19:35–20:59 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 0 of 85 minutes on the 4th and 84 of 84 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4912 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Giza, 2030: Sunday 5 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": "2030-05-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-05", "confidence": "determinate" } ], "quote": "In Giza, Paraśurāma Jayantī 2030 falls on Sunday 5 May. Tṛtīyā runs from 22:21 on Sat 4 May to 00:57 on Mon 6 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-05-06", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32636, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-05-06T00:57:27+03:00", "utc": "2030-05-05T21:57:27Z", "ms": 1904248647223.2144 }, "end": { "local": "2030-05-07T03:24:01+03:00", "utc": "2030-05-07T00:24:01Z", "ms": 1904343840769.9048 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-06T00:57:27+03:00", "utc": "2030-05-05T21:57:27Z", "ms": 1904248647223.2144 }, "end": { "local": "2030-05-07T03:24:01+03:00", "utc": "2030-05-07T00:24:01Z", "ms": 1904343840769.9048 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-05-06", "window": { "start": { "local": "2030-05-06T12:28:01+03:00", "utc": "2030-05-06T09:28:01Z", "ms": 1904290080905.8582 }, "end": { "local": "2030-05-06T13:16:01+03:00", "utc": "2030-05-06T10:16:01Z", "ms": 1904292960905.8582 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-05-07", "window": { "start": { "local": "2030-05-07T12:27:57+03:00", "utc": "2030-05-07T09:27:57Z", "ms": 1904376476781.9375 }, "end": { "local": "2030-05-07T13:15:57+03:00", "utc": "2030-05-07T10:15:57Z", "ms": 1904379356781.9375 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:57 on Mon 6 May to 03:24 on Tue 7 May.", "fact": "2030-05-05T21:57:27Z → 2030-05-07T00:24:01Z" }, { "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": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32636 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Monday 6 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": "2030-05-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-06", "confidence": "determinate" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Monday 6 May. Caturthī runs from 00:57 on Mon 6 May to 03:24 on Tue 7 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-05-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25069, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2030-05-07T03:24:01+03:00", "utc": "2030-05-07T00:24:01Z", "ms": 1904343840769.9048 }, "end": { "local": "2030-05-08T05:30:04+03:00", "utc": "2030-05-08T02:30:04Z", "ms": 1904437804315.7817 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-07T03:24:01+03:00", "utc": "2030-05-07T00:24:01Z", "ms": 1904343840769.9048 }, "end": { "local": "2030-05-08T05:30:04+03:00", "utc": "2030-05-08T02:30:04Z", "ms": 1904437804315.7817 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-05-07", "window": { "start": { "local": "2030-05-07T12:27:57+03:00", "utc": "2030-05-07T09:27:57Z", "ms": 1904376476781.9375 }, "end": { "local": "2030-05-07T13:15:57+03:00", "utc": "2030-05-07T10:15:57Z", "ms": 1904379356781.9375 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-05-08", "window": { "start": { "local": "2030-05-08T12:27:53+03:00", "utc": "2030-05-08T09:27:53Z", "ms": 1904462873205.0344 }, "end": { "local": "2030-05-08T13:15:53+03:00", "utc": "2030-05-08T10:15:53Z", "ms": 1904465753205.0344 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:24 on Tue 7 May to 05:30 on Wed 8 May.", "fact": "2030-05-07T00:24:01Z → 2030-05-08T02:30:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 7th, 12:28–13:16 on the 8th.", "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 7th and 0 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25069 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Giza, 2030: Tuesday 7 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": "2030-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-07", "confidence": "determinate" } ], "quote": "In Giza, Śaṅkara Jayantī 2030 falls on Tuesday 7 May. Pañcamī runs from 03:24 on Tue 7 May to 05:30 on Wed 8 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16022, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2030-05-09T07:05:18+03:00", "utc": "2030-05-09T04:05:18Z", "ms": 1904529918065.4429 }, "end": { "local": "2030-05-10T08:00:46+03:00", "utc": "2030-05-10T05:00:46Z", "ms": 1904619646138.781 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-09T07:05:18+03:00", "utc": "2030-05-09T04:05:18Z", "ms": 1904529918065.4429 }, "end": { "local": "2030-05-10T08:00:46+03:00", "utc": "2030-05-10T05:00:46Z", "ms": 1904619646138.781 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-05-09", "window": { "start": { "local": "2030-05-09T12:27:50+03:00", "utc": "2030-05-09T09:27:50Z", "ms": 1904549270175.1504 }, "end": { "local": "2030-05-09T13:15:50+03:00", "utc": "2030-05-09T10:15:50Z", "ms": 1904552150175.1504 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-05-10", "window": { "start": { "local": "2030-05-10T12:27:48+03:00", "utc": "2030-05-10T09:27:48Z", "ms": 1904635667692.023 }, "end": { "local": "2030-05-10T13:15:48+03:00", "utc": "2030-05-10T10:15:48Z", "ms": 1904638547692.023 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 07:05 on Thu 9 May to 08:01 on Fri 10 May.", "fact": "2030-05-09T04:05:18Z → 2030-05-10T05:00:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 9th, 12:28–13:16 on the 10th.", "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 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16022 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Giza, 2030: Thursday 9 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": "2030-05-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-09", "confidence": "determinate" } ], "quote": "In Giza, Gaṅgotpatti (Ganga Saptami) 2030 falls on Thursday 9 May. Saptamī runs from 07:05 on Thu 9 May to 08:01 on Fri 10 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-05-13", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-13", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 5, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-05-13T06:03:21+03:00", "utc": "2030-05-13T03:03:21Z", "ms": 1904871800939.3823 }, "end": { "local": "2030-05-14T03:51:51+03:00", "utc": "2030-05-14T00:51:51Z", "ms": 1904950311289.3726 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-13T06:03:21+03:00", "utc": "2030-05-13T03:03:21Z", "ms": 1904871800939.3823 }, "end": { "local": "2030-05-14T03:51:51+03:00", "utc": "2030-05-14T00:51:51Z", "ms": 1904950311289.3726 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-05-13", "window": { "start": { "local": "2030-05-13T06:03:25+03:00", "utc": "2030-05-13T03:03:25Z", "ms": 1904871805447.7322 }, "end": { "local": "2030-05-13T06:03:25+03:00", "utc": "2030-05-13T03:03:25Z", "ms": 1904871805447.7322 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-05-14", "window": { "start": { "local": "2030-05-14T06:02:46+03:00", "utc": "2030-05-14T03:02:46Z", "ms": 1904958166384.7405 }, "end": { "local": "2030-05-14T06:02:46+03:00", "utc": "2030-05-14T03:02:46Z", "ms": 1904958166384.7405 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:03 on Mon 13 May to 03:52 on Tue 14 May.", "fact": "2030-05-13T03:03:21Z → 2030-05-14T00:51:51Z" }, { "step": "kaala", "text": "Sunrise is at 06:03 on the 13th and 06:03 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5 s < 300 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Giza, 2030: Monday 13 May.", "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": "2030-05-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-13", "confidence": "boundary" } ], "quote": "In Giza, Mohinī Ekādaśī 2030 falls on Monday 13 May. Ekādaśī runs from 06:03 on Mon 13 May to 03:52 on Tue 14 May and is current at sunrise that day. It is 0 min 05 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-05-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30952, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2030-05-14T03:51:51+03:00", "utc": "2030-05-14T00:51:51Z", "ms": 1904950311289.3726 }, "end": { "local": "2030-05-15T01:02:53+03:00", "utc": "2030-05-14T22:02:53Z", "ms": 1905026572540.8984 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-14T03:51:51+03:00", "utc": "2030-05-14T00:51:51Z", "ms": 1904950311289.3726 }, "end": { "local": "2030-05-15T01:02:53+03:00", "utc": "2030-05-14T22:02:53Z", "ms": 1905026572540.8984 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-05-14", "window": { "start": { "local": "2030-05-14T12:27:43+03:00", "utc": "2030-05-14T09:27:43Z", "ms": 1904981263220.3335 }, "end": { "local": "2030-05-14T13:15:43+03:00", "utc": "2030-05-14T10:15:43Z", "ms": 1904984143220.3335 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-05-15", "window": { "start": { "local": "2030-05-15T12:27:43+03:00", "utc": "2030-05-15T09:27:43Z", "ms": 1905067663467.954 }, "end": { "local": "2030-05-15T13:15:43+03:00", "utc": "2030-05-15T10:15:43Z", "ms": 1905070543467.954 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:52 on Tue 14 May to 01:03 on Wed 15 May.", "fact": "2030-05-14T00:51:51Z → 2030-05-14T22:02:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 14th, 12:28–13:16 on the 15th.", "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 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 30952 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Giza, 2030: Tuesday 14 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": "2030-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-14", "confidence": "determinate" } ], "quote": "In Giza, Paraśurāma Dvādaśī 2030 falls on Tuesday 14 May. Dvādaśī runs from 03:52 on Tue 14 May to 01:03 on Wed 15 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30952, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2030-05-14T03:51:51+03:00", "utc": "2030-05-14T00:51:51Z", "ms": 1904950311289.3726 }, "end": { "local": "2030-05-15T01:02:53+03:00", "utc": "2030-05-14T22:02:53Z", "ms": 1905026572540.8984 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-14T03:51:51+03:00", "utc": "2030-05-14T00:51:51Z", "ms": 1904950311289.3726 }, "end": { "local": "2030-05-15T01:02:53+03:00", "utc": "2030-05-14T22:02:53Z", "ms": 1905026572540.8984 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-05-14", "window": { "start": { "local": "2030-05-14T12:27:43+03:00", "utc": "2030-05-14T09:27:43Z", "ms": 1904981263220.3335 }, "end": { "local": "2030-05-14T13:15:43+03:00", "utc": "2030-05-14T10:15:43Z", "ms": 1904984143220.3335 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-05-15", "window": { "start": { "local": "2030-05-15T12:27:43+03:00", "utc": "2030-05-15T09:27:43Z", "ms": 1905067663467.954 }, "end": { "local": "2030-05-15T13:15:43+03:00", "utc": "2030-05-15T10:15:43Z", "ms": 1905070543467.954 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:52 on Tue 14 May to 01:03 on Wed 15 May.", "fact": "2030-05-14T00:51:51Z → 2030-05-14T22:02:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 14th, 12:28–13:16 on the 15th.", "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 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 30952 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Giza, 2030: Tuesday 14 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": "2030-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-14", "confidence": "determinate" } ], "quote": "In Giza, Rukmiṇī Dvādaśī 2030 falls on Tuesday 14 May. Dvādaśī runs from 03:52 on Tue 14 May to 01:03 on Wed 15 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-15", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2444, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-05-15T21:44:44+03:00", "utc": "2030-05-15T18:44:44Z", "ms": 1905101084199.4214 }, "end": { "local": "2030-05-16T18:06:51+03:00", "utc": "2030-05-16T15:06:51Z", "ms": 1905174410940.6553 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-15T21:44:44+03:00", "utc": "2030-05-15T18:44:44Z", "ms": 1905101084199.4214 }, "end": { "local": "2030-05-16T18:06:51+03:00", "utc": "2030-05-16T15:06:51Z", "ms": 1905174410940.6553 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-05-15", "window": { "start": { "local": "2030-05-15T19:41:18+03:00", "utc": "2030-05-15T16:41:18Z", "ms": 1905093678364.2922 }, "end": { "local": "2030-05-15T21:04:00+03:00", "utc": "2030-05-15T18:04:00Z", "ms": 1905098640186.0076 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "2030-05-16", "window": { "start": { "local": "2030-05-16T19:41:56+03:00", "utc": "2030-05-16T16:41:56Z", "ms": 1905180116499.457 }, "end": { "local": "2030-05-16T21:04:29+03:00", "utc": "2030-05-16T18:04:29Z", "ms": 1905185068535.5784 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:45 on Wed 15 May to 18:07 on Thu 16 May.", "fact": "2030-05-15T18:44:44Z → 2030-05-16T15:06:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:41–21:04 on the 15th, 19:42–21:04 on the 16th.", "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 83 minutes on the 15th and 0 of 83 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 2444 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Giza, 2030: Wednesday 15 May.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "2030-05-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-15", "confidence": "boundary" } ], "quote": "In Giza, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2030 falls on Wednesday 15 May. Caturdaśī runs from 21:45 on Wed 15 May to 18:07 on Thu 16 May, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/pradosha-vrata?on=2030-05-15", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2444, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-05-15T01:02:53+03:00", "utc": "2030-05-14T22:02:53Z", "ms": 1905026572540.8984 }, "end": { "local": "2030-05-15T21:44:44+03:00", "utc": "2030-05-15T18:44:44Z", "ms": 1905101084199.4214 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-15T01:02:53+03:00", "utc": "2030-05-14T22:02:53Z", "ms": 1905026572540.8984 }, "end": { "local": "2030-05-15T21:44:44+03:00", "utc": "2030-05-15T18:44:44Z", "ms": 1905101084199.4214 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-05-14", "window": { "start": { "local": "2030-05-14T19:40:40+03:00", "utc": "2030-05-14T16:40:40Z", "ms": 1905007240055.9268 }, "end": { "local": "2030-05-14T21:03:32+03:00", "utc": "2030-05-14T18:03:32Z", "ms": 1905012211858.0186 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "2030-05-15", "window": { "start": { "local": "2030-05-15T19:41:18+03:00", "utc": "2030-05-15T16:41:18Z", "ms": 1905093678364.2922 }, "end": { "local": "2030-05-15T21:04:00+03:00", "utc": "2030-05-15T18:04:00Z", "ms": 1905098640186.0076 } }, "covered_min": 83, "window_min": 83, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:03 on Wed 15 May to 21:45 on Wed 15 May.", "fact": "2030-05-14T22:02:53Z → 2030-05-15T18:44:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:41–21:04 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": "Trayodaśī must be present during pradoṣa. It covers 0 of 83 minutes on the 14th and 83 of 83 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2444 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Wednesday 15 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": "2030-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-15", "confidence": "boundary" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Wednesday 15 May. Trayodaśī runs from 01:03 on Wed 15 May to 21:45 on Wed 15 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-05-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3804, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-05-16T18:06:51+03:00", "utc": "2030-05-16T15:06:51Z", "ms": 1905174410940.6553 }, "end": { "local": "2030-05-17T14:19:10+03:00", "utc": "2030-05-17T11:19:10Z", "ms": 1905247149678.6323 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-16T18:06:51+03:00", "utc": "2030-05-16T15:06:51Z", "ms": 1905174410940.6553 }, "end": { "local": "2030-05-17T14:19:10+03:00", "utc": "2030-05-17T11:19:10Z", "ms": 1905247149678.6323 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-05-16", "window": { "start": { "local": "2030-05-16T12:27:44+03:00", "utc": "2030-05-16T09:27:44Z", "ms": 1905154064263.3071 }, "end": { "local": "2030-05-16T13:15:44+03:00", "utc": "2030-05-16T10:15:44Z", "ms": 1905156944263.3071 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-05-17", "window": { "start": { "local": "2030-05-17T12:27:46+03:00", "utc": "2030-05-17T09:27:46Z", "ms": 1905240465607.5693 }, "end": { "local": "2030-05-17T13:15:46+03:00", "utc": "2030-05-17T10:15:46Z", "ms": 1905243345607.5693 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:07 on Thu 16 May to 14:19 on Fri 17 May.", "fact": "2030-05-16T15:06:51Z → 2030-05-17T11:19:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 16th, 12:28–13:16 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 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3804 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Giza, 2030: Friday 17 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": "2030-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-17", "confidence": "determinate" } ], "quote": "In Giza, Buddha Pūrṇimā 2030 falls on Friday 17 May. Pūrṇimā runs from 18:07 on Thu 16 May to 14:19 on Fri 17 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3804, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-05-16T18:06:51+03:00", "utc": "2030-05-16T15:06:51Z", "ms": 1905174410940.6553 }, "end": { "local": "2030-05-17T14:19:10+03:00", "utc": "2030-05-17T11:19:10Z", "ms": 1905247149678.6323 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-16T18:06:51+03:00", "utc": "2030-05-16T15:06:51Z", "ms": 1905174410940.6553 }, "end": { "local": "2030-05-17T14:19:10+03:00", "utc": "2030-05-17T11:19:10Z", "ms": 1905247149678.6323 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-05-16", "window": { "start": { "local": "2030-05-16T12:27:44+03:00", "utc": "2030-05-16T09:27:44Z", "ms": 1905154064263.3071 }, "end": { "local": "2030-05-16T13:15:44+03:00", "utc": "2030-05-16T10:15:44Z", "ms": 1905156944263.3071 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-05-17", "window": { "start": { "local": "2030-05-17T12:27:46+03:00", "utc": "2030-05-17T09:27:46Z", "ms": 1905240465607.5693 }, "end": { "local": "2030-05-17T13:15:46+03:00", "utc": "2030-05-17T10:15:46Z", "ms": 1905243345607.5693 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:07 on Thu 16 May to 14:19 on Fri 17 May.", "fact": "2030-05-16T15:06:51Z → 2030-05-17T11:19:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 16th, 12:28–13:16 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 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3804 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Giza, 2030: Friday 17 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": "2030-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-17", "confidence": "determinate" } ], "quote": "In Giza, Sampat Gaurī Vrata 2030 falls on Friday 17 May. Pūrṇimā runs from 18:07 on Thu 16 May to 14:19 on Fri 17 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-05-20", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6208, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-05-20T03:36:32+03:00", "utc": "2030-05-20T00:36:32Z", "ms": 1905467792387.627 }, "end": { "local": "2030-05-21T00:46:31+03:00", "utc": "2030-05-20T21:46:31Z", "ms": 1905543990814.9263 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-20T03:36:32+03:00", "utc": "2030-05-20T00:36:32Z", "ms": 1905467792387.627 }, "end": { "local": "2030-05-21T00:46:31+03:00", "utc": "2030-05-20T21:46:31Z", "ms": 1905543990814.9263 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-05-19", "window": { "start": { "local": "2030-05-19T22:09:09+03:00", "utc": "2030-05-19T19:09:09Z", "ms": 1905448148510.8728 }, "end": { "local": "2030-05-19T22:09:09+03:00", "utc": "2030-05-19T19:09:09Z", "ms": 1905448148510.8728 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-05-20", "window": { "start": { "local": "2030-05-20T23:03:03+03:00", "utc": "2030-05-20T20:03:03Z", "ms": 1905537782671.8137 }, "end": { "local": "2030-05-20T23:03:03+03:00", "utc": "2030-05-20T20:03:03Z", "ms": 1905537782671.8137 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:37 on Mon 20 May to 00:47 on Tue 21 May.", "fact": "2030-05-20T00:36:32Z → 2030-05-20T21:46:31Z" }, { "step": "kaala", "text": "Moonrise is at 22:09 on the 19th and 23:03 on the 20th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 19th and is 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 6208 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Monday 20 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": "2030-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-20", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Monday 20 May. Caturthī runs from 03:37 on Mon 20 May to 00:47 on Tue 21 May and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-05-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-05-27", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22820, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-05-26T21:49:56+03:00", "utc": "2030-05-26T18:49:56Z", "ms": 1906051795562.09 }, "end": { "local": "2030-05-27T23:35:39+03:00", "utc": "2030-05-27T20:35:39Z", "ms": 1906144539030.3105 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-26T21:49:56+03:00", "utc": "2030-05-26T18:49:56Z", "ms": 1906051795562.09 }, "end": { "local": "2030-05-27T23:35:39+03:00", "utc": "2030-05-27T20:35:39Z", "ms": 1906144539030.3105 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-05-27", "window": { "start": { "local": "2030-05-27T05:56:19+03:00", "utc": "2030-05-27T02:56:19Z", "ms": 1906080978773.7488 }, "end": { "local": "2030-05-27T05:56:19+03:00", "utc": "2030-05-27T02:56:19Z", "ms": 1906080978773.7488 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-05-28", "window": { "start": { "local": "2030-05-28T05:55:59+03:00", "utc": "2030-05-28T02:55:59Z", "ms": 1906167358695.7715 }, "end": { "local": "2030-05-28T05:55:59+03:00", "utc": "2030-05-28T02:55:59Z", "ms": 1906167358695.7715 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:50 on Sun 26 May to 23:36 on Mon 27 May.", "fact": "2030-05-26T18:49:56Z → 2030-05-27T20:35:39Z" }, { "step": "kaala", "text": "Sunrise is at 05:56 on the 27th and 05:56 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22820 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Giza, 2030: Monday 27 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": "2030-05-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-27", "confidence": "determinate" } ], "quote": "In Giza, Aparā Ekādaśī 2030 falls on Monday 27 May. Ekādaśī runs from 21:50 on Sun 26 May to 23:36 on Mon 27 May and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-05-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-05-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16524, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-05-29T01:45:29+03:00", "utc": "2030-05-28T22:45:29Z", "ms": 1906238728754.0542 }, "end": { "local": "2030-05-30T04:11:28+03:00", "utc": "2030-05-30T01:11:28Z", "ms": 1906333888386.713 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-29T01:45:29+03:00", "utc": "2030-05-28T22:45:29Z", "ms": 1906238728754.0542 }, "end": { "local": "2030-05-30T04:11:28+03:00", "utc": "2030-05-30T01:11:28Z", "ms": 1906333888386.713 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-05-28", "window": { "start": { "local": "2030-05-28T19:49:13+03:00", "utc": "2030-05-28T16:49:13Z", "ms": 1906217353106.6248 }, "end": { "local": "2030-05-28T21:10:05+03:00", "utc": "2030-05-28T18:10:05Z", "ms": 1906222204698.46 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "2030-05-29", "window": { "start": { "local": "2030-05-29T19:49:47+03:00", "utc": "2030-05-29T16:49:47Z", "ms": 1906303786929.4097 }, "end": { "local": "2030-05-29T21:10:32+03:00", "utc": "2030-05-29T18:10:32Z", "ms": 1906308631715.2131 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:45 on Wed 29 May to 04:11 on Thu 30 May.", "fact": "2030-05-28T22:45:29Z → 2030-05-30T01:11:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:49–21:10 on the 28th, 19:50–21:11 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 81 minutes on the 28th and 81 of 81 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 16524 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Wednesday 29 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": "2030-05-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-29", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Wednesday 29 May. Trayodaśī runs from 01:45 on Wed 29 May to 04:11 on Thu 30 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-05-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-05-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10494, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-05-30T04:11:28+03:00", "utc": "2030-05-30T01:11:28Z", "ms": 1906333888386.713 }, "end": { "local": "2030-05-31T06:45:52+03:00", "utc": "2030-05-31T03:45:52Z", "ms": 1906429552211.0796 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-05-30T04:11:28+03:00", "utc": "2030-05-30T01:11:28Z", "ms": 1906333888386.713 }, "end": { "local": "2030-05-31T06:45:52+03:00", "utc": "2030-05-31T03:45:52Z", "ms": 1906429552211.0796 } }, "kaala": "nishita", "days": [ { "local_date": "2030-05-29", "window": { "start": { "local": "2030-05-30T00:28:35+03:00", "utc": "2030-05-29T21:28:35Z", "ms": 1906320514876.1729 }, "end": { "local": "2030-05-30T01:16:35+03:00", "utc": "2030-05-29T22:16:35Z", "ms": 1906323394876.1729 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-05-30", "window": { "start": { "local": "2030-05-31T00:28:44+03:00", "utc": "2030-05-30T21:28:44Z", "ms": 1906406923618.919 }, "end": { "local": "2030-05-31T01:16:44+03:00", "utc": "2030-05-30T22:16:44Z", "ms": 1906409803618.919 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:11 on Thu 30 May to 06:46 on Fri 31 May.", "fact": "2030-05-30T01:11:28Z → 2030-05-31T03:45:52Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:29–01:17 on the 29th, 00:29–01:17 on the 30th.", "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 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10494 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Thursday 30 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": "2030-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-05-30", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Thursday 30 May. Caturdaśī runs from 04:11 on Thu 30 May to 06:46 on Fri 31 May and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-05-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3057, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2030-06-03T14:08:25+03:00", "utc": "2030-06-03T11:08:25Z", "ms": 1906715305130.7847 }, "end": { "local": "2030-06-04T16:06:58+03:00", "utc": "2030-06-04T13:06:58Z", "ms": 1906808818028.3235 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-03T14:08:25+03:00", "utc": "2030-06-03T11:08:25Z", "ms": 1906715305130.7847 }, "end": { "local": "2030-06-04T16:06:58+03:00", "utc": "2030-06-04T13:06:58Z", "ms": 1906808818028.3235 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-06-03", "window": { "start": { "local": "2030-06-03T12:29:28+03:00", "utc": "2030-06-03T09:29:28Z", "ms": 1906709367692.5742 }, "end": { "local": "2030-06-03T13:17:28+03:00", "utc": "2030-06-03T10:17:28Z", "ms": 1906712247692.5742 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-06-04", "window": { "start": { "local": "2030-06-04T12:29:38+03:00", "utc": "2030-06-04T09:29:38Z", "ms": 1906795777650.8828 }, "end": { "local": "2030-06-04T13:17:38+03:00", "utc": "2030-06-04T10:17:38Z", "ms": 1906798657650.8828 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 14:08 on Mon 3 Jun to 16:07 on Tue 4 Jun.", "fact": "2030-06-03T11:08:25Z → 2030-06-04T13:06:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 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": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3057 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Giza, 2030: Tuesday 4 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": "2030-06-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-03", "confidence": "determinate" } ], "quote": "In Giza, Rambhā Tṛtīyā 2030 falls on Tuesday 4 June. Tṛtīyā runs from 14:08 on Mon 3 Jun to 16:07 on Tue 4 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-06-05", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10160, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-06-04T16:06:58+03:00", "utc": "2030-06-04T13:06:58Z", "ms": 1906808818028.3235 }, "end": { "local": "2030-06-05T17:40:27+03:00", "utc": "2030-06-05T14:40:27Z", "ms": 1906900826911.5544 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-04T16:06:58+03:00", "utc": "2030-06-04T13:06:58Z", "ms": 1906808818028.3235 }, "end": { "local": "2030-06-05T17:40:27+03:00", "utc": "2030-06-05T14:40:27Z", "ms": 1906900826911.5544 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-06-04", "window": { "start": { "local": "2030-06-04T12:29:38+03:00", "utc": "2030-06-04T09:29:38Z", "ms": 1906795777650.8828 }, "end": { "local": "2030-06-04T13:17:38+03:00", "utc": "2030-06-04T10:17:38Z", "ms": 1906798657650.8828 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-06-05", "window": { "start": { "local": "2030-06-05T12:29:48+03:00", "utc": "2030-06-05T09:29:48Z", "ms": 1906882187932.6787 }, "end": { "local": "2030-06-05T13:17:48+03:00", "utc": "2030-06-05T10:17:48Z", "ms": 1906885067932.6787 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:07 on Tue 4 Jun to 17:40 on Wed 5 Jun.", "fact": "2030-06-04T13:06:58Z → 2030-06-05T14:40:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 4th, 12:30–13:18 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 10160 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Wednesday 5 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-05", "confidence": "determinate" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Wednesday 5 June. Caturthī runs from 16:07 on Tue 4 Jun to 17:40 on Wed 5 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-06-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19504, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2030-06-06T18:43:02+03:00", "utc": "2030-06-06T15:43:02Z", "ms": 1906990982153.9358 }, "end": { "local": "2030-06-07T19:09:49+03:00", "utc": "2030-06-07T16:09:49Z", "ms": 1907078988635.771 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-06T18:43:02+03:00", "utc": "2030-06-06T15:43:02Z", "ms": 1906990982153.9358 }, "end": { "local": "2030-06-07T19:09:49+03:00", "utc": "2030-06-07T16:09:49Z", "ms": 1907078988635.771 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-06-06", "window": { "start": { "local": "2030-06-06T12:29:59+03:00", "utc": "2030-06-06T09:29:59Z", "ms": 1906968598516.1416 }, "end": { "local": "2030-06-06T13:17:59+03:00", "utc": "2030-06-06T10:17:59Z", "ms": 1906971478516.1416 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-06-07", "window": { "start": { "local": "2030-06-07T12:30:09+03:00", "utc": "2030-06-07T09:30:09Z", "ms": 1907055009379.295 }, "end": { "local": "2030-06-07T13:18:09+03:00", "utc": "2030-06-07T10:18:09Z", "ms": 1907057889379.295 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 18:43 on Thu 6 Jun to 19:10 on Fri 7 Jun.", "fact": "2030-06-06T15:43:02Z → 2030-06-07T16:09:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 6th, 12:30–13:18 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19504 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Giza, 2030: Friday 7 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-06-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-07", "confidence": "determinate" } ], "quote": "In Giza, Araṇya Gaurī Vrata 2030 falls on Friday 7 June. Ṣaṣṭhī runs from 18:43 on Thu 6 Jun to 19:10 on Fri 7 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19504, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2030-06-06T18:43:02+03:00", "utc": "2030-06-06T15:43:02Z", "ms": 1906990982153.9358 }, "end": { "local": "2030-06-07T19:09:49+03:00", "utc": "2030-06-07T16:09:49Z", "ms": 1907078988635.771 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-06T18:43:02+03:00", "utc": "2030-06-06T15:43:02Z", "ms": 1906990982153.9358 }, "end": { "local": "2030-06-07T19:09:49+03:00", "utc": "2030-06-07T16:09:49Z", "ms": 1907078988635.771 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-06-06", "window": { "start": { "local": "2030-06-06T12:29:59+03:00", "utc": "2030-06-06T09:29:59Z", "ms": 1906968598516.1416 }, "end": { "local": "2030-06-06T13:17:59+03:00", "utc": "2030-06-06T10:17:59Z", "ms": 1906971478516.1416 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-06-07", "window": { "start": { "local": "2030-06-07T12:30:09+03:00", "utc": "2030-06-07T09:30:09Z", "ms": 1907055009379.295 }, "end": { "local": "2030-06-07T13:18:09+03:00", "utc": "2030-06-07T10:18:09Z", "ms": 1907057889379.295 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 18:43 on Thu 6 Jun to 19:10 on Fri 7 Jun.", "fact": "2030-06-06T15:43:02Z → 2030-06-07T16:09:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 6th, 12:30–13:18 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19504 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Giza, 2030: Friday 7 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-06-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-07", "confidence": "determinate" } ], "quote": "In Giza, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2030 falls on Friday 7 June. Ṣaṣṭhī runs from 18:43 on Thu 6 Jun to 19:10 on Fri 7 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-06-12", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20545, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-06-11T14:19:39+03:00", "utc": "2030-06-11T11:19:39Z", "ms": 1907407178868.5527 }, "end": { "local": "2030-06-12T11:36:12+03:00", "utc": "2030-06-12T08:36:12Z", "ms": 1907483772003.529 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-11T14:19:39+03:00", "utc": "2030-06-11T11:19:39Z", "ms": 1907407178868.5527 }, "end": { "local": "2030-06-12T11:36:12+03:00", "utc": "2030-06-12T08:36:12Z", "ms": 1907483772003.529 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-06-11", "window": { "start": { "local": "2030-06-11T05:53:46+03:00", "utc": "2030-06-11T02:53:46Z", "ms": 1907376825883.8171 }, "end": { "local": "2030-06-11T05:53:46+03:00", "utc": "2030-06-11T02:53:46Z", "ms": 1907376825883.8171 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-06-12", "window": { "start": { "local": "2030-06-12T05:53:47+03:00", "utc": "2030-06-12T02:53:47Z", "ms": 1907463226697.5334 }, "end": { "local": "2030-06-12T05:53:47+03:00", "utc": "2030-06-12T02:53:47Z", "ms": 1907463226697.5334 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:20 on Tue 11 Jun to 11:36 on Wed 12 Jun.", "fact": "2030-06-11T11:19:39Z → 2030-06-12T08:36:12Z" }, { "step": "kaala", "text": "Sunrise is at 05:54 on the 11th and 05:54 on the 12th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 11th and is on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20545 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Giza, 2030: Wednesday 12 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": "2030-06-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-12", "confidence": "determinate" } ], "quote": "In Giza, Nirjalā Ekādaśī 2030 falls on Wednesday 12 June. Ekādaśī runs from 14:20 on Tue 11 Jun to 11:36 on Wed 12 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-06-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3295, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2030-06-12T11:36:12+03:00", "utc": "2030-06-12T08:36:12Z", "ms": 1907483772003.529 }, "end": { "local": "2030-06-13T08:26:33+03:00", "utc": "2030-06-13T05:26:33Z", "ms": 1907558793454.6465 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-12T11:36:12+03:00", "utc": "2030-06-12T08:36:12Z", "ms": 1907483772003.529 }, "end": { "local": "2030-06-13T08:26:33+03:00", "utc": "2030-06-13T05:26:33Z", "ms": 1907558793454.6465 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-06-12", "window": { "start": { "local": "2030-06-12T12:31:07+03:00", "utc": "2030-06-12T09:31:07Z", "ms": 1907487067133.24 }, "end": { "local": "2030-06-12T13:19:07+03:00", "utc": "2030-06-12T10:19:07Z", "ms": 1907489947133.24 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-06-13", "window": { "start": { "local": "2030-06-13T12:31:19+03:00", "utc": "2030-06-13T09:31:19Z", "ms": 1907573479227.7192 }, "end": { "local": "2030-06-13T13:19:19+03:00", "utc": "2030-06-13T10:19:19Z", "ms": 1907576359227.7192 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 11:36 on Wed 12 Jun to 08:27 on Thu 13 Jun.", "fact": "2030-06-12T08:36:12Z → 2030-06-13T05:26:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 12th, 12:31–13:19 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3295 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Giza, 2030: Wednesday 12 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": "2030-06-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-12", "confidence": "determinate" } ], "quote": "In Giza, Śrī Rāma Dvādaśī 2030 falls on Wednesday 12 June. Dvādaśī runs from 11:36 on Wed 12 Jun to 08:27 on Thu 13 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/pradosha-vrata?on=2030-06-13", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27716, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-06-13T08:26:33+03:00", "utc": "2030-06-13T05:26:33Z", "ms": 1907558793454.6465 }, "end": { "local": "2030-06-14T04:58:22+03:00", "utc": "2030-06-14T01:58:22Z", "ms": 1907632701687.3093 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-13T08:26:33+03:00", "utc": "2030-06-13T05:26:33Z", "ms": 1907558793454.6465 }, "end": { "local": "2030-06-14T04:58:22+03:00", "utc": "2030-06-14T01:58:22Z", "ms": 1907632701687.3093 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-06-12", "window": { "start": { "local": "2030-06-12T19:56:28+03:00", "utc": "2030-06-12T16:56:28Z", "ms": 1907513787568.9465 }, "end": { "local": "2030-06-12T21:16:06+03:00", "utc": "2030-06-12T18:16:06Z", "ms": 1907518566403.5918 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "2030-06-13", "window": { "start": { "local": "2030-06-13T19:56:50+03:00", "utc": "2030-06-13T16:56:50Z", "ms": 1907600209626.6514 }, "end": { "local": "2030-06-13T21:16:26+03:00", "utc": "2030-06-13T18:16:26Z", "ms": 1907604985978.5305 } }, "covered_min": 80, "window_min": 80, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:27 on Thu 13 Jun to 04:58 on Fri 14 Jun.", "fact": "2030-06-13T05:26:33Z → 2030-06-14T01:58:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:56–21:16 on the 12th, 19:57–21:16 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 80 minutes on the 12th and 80 of 80 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27716 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Thursday 13 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": "2030-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-13", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Thursday 13 June. Trayodaśī runs from 08:27 on Thu 13 Jun to 04:58 on Fri 14 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-06-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1438, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-06-15T01:20:09+03:00", "utc": "2030-06-14T22:20:09Z", "ms": 1907706008690.3103 }, "end": { "local": "2030-06-15T21:41:01+03:00", "utc": "2030-06-15T18:41:01Z", "ms": 1907779261412.9314 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-15T01:20:09+03:00", "utc": "2030-06-14T22:20:09Z", "ms": 1907706008690.3103 }, "end": { "local": "2030-06-15T21:41:01+03:00", "utc": "2030-06-15T18:41:01Z", "ms": 1907779261412.9314 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-06-14", "window": { "start": { "local": "2030-06-14T19:57:11+03:00", "utc": "2030-06-14T16:57:11Z", "ms": 1907686630652.4426 }, "end": { "local": "2030-06-14T21:16:45+03:00", "utc": "2030-06-14T18:16:45Z", "ms": 1907691404831.6638 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "2030-06-15", "window": { "start": { "local": "2030-06-15T19:57:31+03:00", "utc": "2030-06-15T16:57:31Z", "ms": 1907773050622.973 }, "end": { "local": "2030-06-15T21:17:03+03:00", "utc": "2030-06-15T18:17:03Z", "ms": 1907777822941.1716 } }, "covered_min": 80, "window_min": 80, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:20 on Sat 15 Jun to 21:41 on Sat 15 Jun.", "fact": "2030-06-14T22:20:09Z → 2030-06-15T18:41:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:57–21:17 on the 14th, 19:58–21:17 on the 15th.", "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 80 minutes on the 14th and 80 of 80 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: purvaviddha → only-day · margin 1438 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Giza, 2030: Saturday 15 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": "2030-06-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-15", "confidence": "determinate" } ], "quote": "In Giza, Vaṭa Sāvitrī Vrata 2030 falls on Saturday 15 June. Pūrṇimā runs from 01:20 on Sat 15 Jun to 21:41 on Sat 15 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-06-18", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36718, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-06-18T12:12:06+03:00", "utc": "2030-06-18T09:12:06Z", "ms": 1908004325975.4614 }, "end": { "local": "2030-06-19T10:01:44+03:00", "utc": "2030-06-19T07:01:44Z", "ms": 1908082903793.722 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-18T12:12:06+03:00", "utc": "2030-06-18T09:12:06Z", "ms": 1908004325975.4614 }, "end": { "local": "2030-06-19T10:01:44+03:00", "utc": "2030-06-19T07:01:44Z", "ms": 1908082903793.722 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-06-18", "window": { "start": { "local": "2030-06-18T22:24:04+03:00", "utc": "2030-06-18T19:24:04Z", "ms": 1908041043546.064 }, "end": { "local": "2030-06-18T22:24:04+03:00", "utc": "2030-06-18T19:24:04Z", "ms": 1908041043546.064 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-06-19", "window": { "start": { "local": "2030-06-19T23:03:08+03:00", "utc": "2030-06-19T20:03:08Z", "ms": 1908129788465.0535 }, "end": { "local": "2030-06-19T23:03:08+03:00", "utc": "2030-06-19T20:03:08Z", "ms": 1908129788465.0535 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:12 on Tue 18 Jun to 10:02 on Wed 19 Jun.", "fact": "2030-06-18T09:12:06Z → 2030-06-19T07:01:44Z" }, { "step": "kaala", "text": "Moonrise is at 22:24 on the 18th and 23:03 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 36718 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Tuesday 18 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": "2030-06-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-18", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Tuesday 18 June. Caturthī runs from 12:12 on Tue 18 Jun to 10:02 on Wed 19 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-06-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-06-26", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23742, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-06-25T12:31:34+03:00", "utc": "2030-06-25T09:31:34Z", "ms": 1908610294280.3633 }, "end": { "local": "2030-06-26T14:58:05+03:00", "utc": "2030-06-26T11:58:05Z", "ms": 1908705485030.0784 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-25T12:31:34+03:00", "utc": "2030-06-25T09:31:34Z", "ms": 1908610294280.3633 }, "end": { "local": "2030-06-26T14:58:05+03:00", "utc": "2030-06-26T11:58:05Z", "ms": 1908705485030.0784 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-06-25", "window": { "start": { "local": "2030-06-25T05:55:52+03:00", "utc": "2030-06-25T02:55:52Z", "ms": 1908586552258.2068 }, "end": { "local": "2030-06-25T05:55:52+03:00", "utc": "2030-06-25T02:55:52Z", "ms": 1908586552258.2068 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-06-26", "window": { "start": { "local": "2030-06-26T05:56:10+03:00", "utc": "2030-06-26T02:56:10Z", "ms": 1908672970131.5127 }, "end": { "local": "2030-06-26T05:56:10+03:00", "utc": "2030-06-26T02:56:10Z", "ms": 1908672970131.5127 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:32 on Tue 25 Jun to 14:58 on Wed 26 Jun.", "fact": "2030-06-25T09:31:34Z → 2030-06-26T11:58:05Z" }, { "step": "kaala", "text": "Sunrise is at 05:56 on the 25th and 05:56 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 25th and is on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23742 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Giza, 2030: Wednesday 26 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": "2030-06-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-26", "confidence": "determinate" } ], "quote": "In Giza, Yoginī Ekādaśī 2030 falls on Wednesday 26 June. Ekādaśī runs from 12:32 on Tue 25 Jun to 14:58 on Wed 26 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-06-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-06-27", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-27", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 429, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-06-27T17:33:37+03:00", "utc": "2030-06-27T14:33:37Z", "ms": 1908801216645.4302 }, "end": { "local": "2030-06-28T20:07:13+03:00", "utc": "2030-06-28T17:07:13Z", "ms": 1908896833214.0488 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-27T17:33:37+03:00", "utc": "2030-06-27T14:33:37Z", "ms": 1908801216645.4302 }, "end": { "local": "2030-06-28T20:07:13+03:00", "utc": "2030-06-28T17:07:13Z", "ms": 1908896833214.0488 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-06-27", "window": { "start": { "local": "2030-06-27T20:00:00+03:00", "utc": "2030-06-27T17:00:00Z", "ms": 1908809999704.3735 }, "end": { "local": "2030-06-27T21:19:34+03:00", "utc": "2030-06-27T18:19:34Z", "ms": 1908814774275.934 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "2030-06-28", "window": { "start": { "local": "2030-06-28T20:00:04+03:00", "utc": "2030-06-28T17:00:04Z", "ms": 1908896403910.1475 }, "end": { "local": "2030-06-28T21:19:41+03:00", "utc": "2030-06-28T18:19:41Z", "ms": 1908901180710.6252 } }, "covered_min": 7, "window_min": 80, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:34 on Thu 27 Jun to 20:07 on Fri 28 Jun.", "fact": "2030-06-27T14:33:37Z → 2030-06-28T17:07:13Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:00–21:20 on the 27th, 20:00–21:20 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 80 of 80 minutes on the 27th and 7 of 80 on the 28th.", "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 429 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Thursday 27 June.", "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": "2030-06-27", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-27", "confidence": "boundary" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Thursday 27 June. Trayodaśī runs from 17:34 on Thu 27 Jun to 20:07 on Fri 28 Jun and covers all of pradoṣa that evening. It also reaches the next evening for 7 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/giza/festivals/2030/pradosha-vrata?on=2030-06-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-06-28", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7501, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-06-28T20:07:13+03:00", "utc": "2030-06-28T17:07:13Z", "ms": 1908896833214.0488 }, "end": { "local": "2030-06-29T22:29:48+03:00", "utc": "2030-06-29T19:29:48Z", "ms": 1908991788079.6917 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-06-28T20:07:13+03:00", "utc": "2030-06-28T17:07:13Z", "ms": 1908896833214.0488 }, "end": { "local": "2030-06-29T22:29:48+03:00", "utc": "2030-06-29T19:29:48Z", "ms": 1908991788079.6917 } }, "kaala": "nishita", "days": [ { "local_date": "2030-06-28", "window": { "start": { "local": "2030-06-29T00:34:37+03:00", "utc": "2030-06-28T21:34:37Z", "ms": 1908912876911.939 }, "end": { "local": "2030-06-29T01:22:37+03:00", "utc": "2030-06-28T22:22:37Z", "ms": 1908915756911.939 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-06-29", "window": { "start": { "local": "2030-06-30T00:34:49+03:00", "utc": "2030-06-29T21:34:49Z", "ms": 1908999289272.1309 }, "end": { "local": "2030-06-30T01:22:49+03:00", "utc": "2030-06-29T22:22:49Z", "ms": 1909002169272.1309 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:07 on Fri 28 Jun to 22:30 on Sat 29 Jun.", "fact": "2030-06-28T17:07:13Z → 2030-06-29T19:29:48Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:35–01:23 on the 28th, 00:35–01:23 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 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7501 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Friday 28 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": "2030-06-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-06-28", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Friday 28 June. Caturdaśī runs from 20:07 on Fri 28 Jun to 22:30 on Sat 29 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-06-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32541, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2030-07-02T02:16:35+03:00", "utc": "2030-07-01T23:16:35Z", "ms": 1909178194556.5068 }, "end": { "local": "2030-07-03T03:33:03+03:00", "utc": "2030-07-03T00:33:03Z", "ms": 1909269182715.3062 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-02T02:16:35+03:00", "utc": "2030-07-01T23:16:35Z", "ms": 1909178194556.5068 }, "end": { "local": "2030-07-03T03:33:03+03:00", "utc": "2030-07-03T00:33:03Z", "ms": 1909269182715.3062 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-07-02", "window": { "start": { "local": "2030-07-02T12:35:13+03:00", "utc": "2030-07-02T09:35:13Z", "ms": 1909215312611.0361 }, "end": { "local": "2030-07-02T13:23:13+03:00", "utc": "2030-07-02T10:23:13Z", "ms": 1909218192611.0361 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-07-03", "window": { "start": { "local": "2030-07-03T12:35:23+03:00", "utc": "2030-07-03T09:35:23Z", "ms": 1909301723493.3564 }, "end": { "local": "2030-07-03T13:23:23+03:00", "utc": "2030-07-03T10:23:23Z", "ms": 1909304603493.3564 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 02:17 on Tue 2 Jul to 03:33 on Wed 3 Jul.", "fact": "2030-07-01T23:16:35Z → 2030-07-03T00:33:03Z" }, { "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": "Dvitīyā 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: paraviddha → only-day · margin 32541 s" }, { "step": "ruling", "text": "Rathayātrā, Giza, 2030: Tuesday 2 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": "2030-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-02", "confidence": "determinate" } ], "quote": "In Giza, Rathayātrā 2030 falls on Tuesday 2 July. Dvitīyā runs from 02:17 on Tue 2 Jul to 03:33 on Wed 3 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-07-04", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28395, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-07-04T04:22:04+03:00", "utc": "2030-07-04T01:22:04Z", "ms": 1909358523767.2444 }, "end": { "local": "2030-07-05T04:42:30+03:00", "utc": "2030-07-05T01:42:30Z", "ms": 1909446149675.701 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-04T04:22:04+03:00", "utc": "2030-07-04T01:22:04Z", "ms": 1909358523767.2444 }, "end": { "local": "2030-07-05T04:42:30+03:00", "utc": "2030-07-05T01:42:30Z", "ms": 1909446149675.701 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-07-04", "window": { "start": { "local": "2030-07-04T12:35:34+03:00", "utc": "2030-07-04T09:35:34Z", "ms": 1909388134063.6235 }, "end": { "local": "2030-07-04T13:23:34+03:00", "utc": "2030-07-04T10:23:34Z", "ms": 1909391014063.6235 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-07-05", "window": { "start": { "local": "2030-07-05T12:35:44+03:00", "utc": "2030-07-05T09:35:44Z", "ms": 1909474544298.2905 }, "end": { "local": "2030-07-05T13:23:44+03:00", "utc": "2030-07-05T10:23:44Z", "ms": 1909477424298.2905 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:22 on Thu 4 Jul to 04:42 on Fri 5 Jul.", "fact": "2030-07-04T01:22:04Z → 2030-07-05T01:42:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 4th, 12:36–13:24 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 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28395 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Thursday 4 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": "2030-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-04", "confidence": "determinate" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Thursday 4 July. Caturthī runs from 04:22 on Thu 4 Jul to 04:42 on Fri 5 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-07-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28395, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2030-07-05T04:42:30+03:00", "utc": "2030-07-05T01:42:30Z", "ms": 1909446149675.701 }, "end": { "local": "2030-07-06T04:33:37+03:00", "utc": "2030-07-06T01:33:37Z", "ms": 1909532017328.1223 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-05T04:42:30+03:00", "utc": "2030-07-05T01:42:30Z", "ms": 1909446149675.701 }, "end": { "local": "2030-07-06T04:33:37+03:00", "utc": "2030-07-06T01:33:37Z", "ms": 1909532017328.1223 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-07-05", "window": { "start": { "local": "2030-07-05T12:35:44+03:00", "utc": "2030-07-05T09:35:44Z", "ms": 1909474544298.2905 }, "end": { "local": "2030-07-05T13:23:44+03:00", "utc": "2030-07-05T10:23:44Z", "ms": 1909477424298.2905 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-07-06", "window": { "start": { "local": "2030-07-06T12:35:54+03:00", "utc": "2030-07-06T09:35:54Z", "ms": 1909560954174.876 }, "end": { "local": "2030-07-06T13:23:54+03:00", "utc": "2030-07-06T10:23:54Z", "ms": 1909563834174.876 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 04:42 on Fri 5 Jul to 04:34 on Sat 6 Jul.", "fact": "2030-07-05T01:42:30Z → 2030-07-06T01:33:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 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": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28395 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Giza, 2030: Friday 5 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": "2030-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-05", "confidence": "determinate" } ], "quote": "In Giza, Skanda Pañcamī 2030 falls on Friday 5 July. Pañcamī runs from 04:42 on Fri 5 Jul to 04:34 on Sat 6 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31260, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2030-07-07T03:55:04+03:00", "utc": "2030-07-07T00:55:04Z", "ms": 1909616103943.765 }, "end": { "local": "2030-07-08T02:46:54+03:00", "utc": "2030-07-07T23:46:54Z", "ms": 1909698413559.2476 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-07T03:55:04+03:00", "utc": "2030-07-07T00:55:04Z", "ms": 1909616103943.765 }, "end": { "local": "2030-07-08T02:46:54+03:00", "utc": "2030-07-07T23:46:54Z", "ms": 1909698413559.2476 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-07-07", "window": { "start": { "local": "2030-07-07T12:36:04+03:00", "utc": "2030-07-07T09:36:04Z", "ms": 1909647363672.044 }, "end": { "local": "2030-07-07T13:24:04+03:00", "utc": "2030-07-07T10:24:04Z", "ms": 1909650243672.044 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-07-08", "window": { "start": { "local": "2030-07-08T12:36:13+03:00", "utc": "2030-07-08T09:36:13Z", "ms": 1909733772769.805 }, "end": { "local": "2030-07-08T13:24:13+03:00", "utc": "2030-07-08T10:24:13Z", "ms": 1909736652769.805 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:55 on Sun 7 Jul to 02:47 on Mon 8 Jul.", "fact": "2030-07-07T00:55:04Z → 2030-07-07T23:46:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 7th, 12:36–13:24 on the 8th.", "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 7th and 0 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31260 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Giza, 2030: Sunday 7 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": "2030-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-07", "confidence": "determinate" } ], "quote": "In Giza, Vivasvat Saptamī 2030 falls on Sunday 7 July. Saptamī runs from 03:55 on Sun 7 Jul to 02:47 on Mon 8 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-07-11", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33931, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-07-10T20:36:54+03:00", "utc": "2030-07-10T17:36:54Z", "ms": 1909935414236.6926 }, "end": { "local": "2030-07-11T17:47:53+03:00", "utc": "2030-07-11T14:47:53Z", "ms": 1910011672928.9885 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-10T20:36:54+03:00", "utc": "2030-07-10T17:36:54Z", "ms": 1909935414236.6926 }, "end": { "local": "2030-07-11T17:47:53+03:00", "utc": "2030-07-11T14:47:53Z", "ms": 1910011672928.9885 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-07-11", "window": { "start": { "local": "2030-07-11T06:02:25+03:00", "utc": "2030-07-11T03:02:25Z", "ms": 1909969345264.085 }, "end": { "local": "2030-07-11T06:02:25+03:00", "utc": "2030-07-11T03:02:25Z", "ms": 1909969345264.085 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-07-12", "window": { "start": { "local": "2030-07-12T06:02:56+03:00", "utc": "2030-07-12T03:02:56Z", "ms": 1910055775866.2366 }, "end": { "local": "2030-07-12T06:02:56+03:00", "utc": "2030-07-12T03:02:56Z", "ms": 1910055775866.2366 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:37 on Wed 10 Jul to 17:48 on Thu 11 Jul.", "fact": "2030-07-10T17:36:54Z → 2030-07-11T14:47:53Z" }, { "step": "kaala", "text": "Sunrise is at 06:02 on the 11th and 06:03 on the 12th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 11th and is not on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33931 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Giza, 2030: Thursday 11 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": "2030-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-11", "confidence": "determinate" } ], "quote": "In Giza, Hariśayanī Ekādaśī 2030 falls on Thursday 11 July. Ekādaśī runs from 20:37 on Wed 10 Jul to 17:48 on Thu 11 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-07-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-07-12", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18883, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-07-12T14:43:51+03:00", "utc": "2030-07-12T11:43:51Z", "ms": 1910087030885.3333 }, "end": { "local": "2030-07-13T11:31:20+03:00", "utc": "2030-07-13T08:31:20Z", "ms": 1910161880106.3318 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-12T14:43:51+03:00", "utc": "2030-07-12T11:43:51Z", "ms": 1910087030885.3333 }, "end": { "local": "2030-07-13T11:31:20+03:00", "utc": "2030-07-13T08:31:20Z", "ms": 1910161880106.3318 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-07-12", "window": { "start": { "local": "2030-07-12T19:58:34+03:00", "utc": "2030-07-12T16:58:34Z", "ms": 1910105913780.888 }, "end": { "local": "2030-07-12T21:19:13+03:00", "utc": "2030-07-12T18:19:13Z", "ms": 1910110752875.0586 } }, "covered_min": 81, "window_min": 81, "qualifies": true }, { "local_date": "2030-07-13", "window": { "start": { "local": "2030-07-13T19:58:16+03:00", "utc": "2030-07-13T16:58:16Z", "ms": 1910192296377.2805 }, "end": { "local": "2030-07-13T21:19:02+03:00", "utc": "2030-07-13T18:19:02Z", "ms": 1910197142007.0286 } }, "covered_min": 0, "window_min": 81, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:44 on Fri 12 Jul to 11:31 on Sat 13 Jul.", "fact": "2030-07-12T11:43:51Z → 2030-07-13T08:31:20Z" }, { "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": "Trayodaśī must be present during pradoṣa. It covers 81 of 81 minutes on the 12th and 0 of 81 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18883 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Friday 12 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": "2030-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-12", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Friday 12 July. Trayodaśī runs from 14:44 on Fri 12 Jul to 11:31 on Sat 13 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-07-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-14", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1971, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-07-14T08:17:55+03:00", "utc": "2030-07-14T05:17:55Z", "ms": 1910236675229.8862 }, "end": { "local": "2030-07-15T05:12:00+03:00", "utc": "2030-07-15T02:12:00Z", "ms": 1910311920242.7427 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-14T08:17:55+03:00", "utc": "2030-07-14T05:17:55Z", "ms": 1910236675229.8862 }, "end": { "local": "2030-07-15T05:12:00+03:00", "utc": "2030-07-15T02:12:00Z", "ms": 1910311920242.7427 } }, "kaala": "udaya-3", "days": [ { "local_date": "2030-07-14", "window": { "start": { "local": "2030-07-14T06:03:59+03:00", "utc": "2030-07-14T03:03:59Z", "ms": 1910228638600.3914 }, "end": { "local": "2030-07-14T08:50:46+03:00", "utc": "2030-07-14T05:50:46Z", "ms": 1910238646382.914 } }, "covered_min": 33, "window_min": 167, "qualifies": false }, { "local_date": "2030-07-15", "window": { "start": { "local": "2030-07-15T06:04:31+03:00", "utc": "2030-07-15T03:04:31Z", "ms": 1910315070680.8147 }, "end": { "local": "2030-07-15T08:51:08+03:00", "utc": "2030-07-15T05:51:08Z", "ms": 1910325067983.803 } }, "covered_min": 0, "window_min": 167, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:18 on Sun 14 Jul to 05:12 on Mon 15 Jul.", "fact": "2030-07-14T05:17:55Z → 2030-07-15T02:12:00Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:04–08:51 on the 14th, 06:05–08:51 on the 15th.", "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 33 of 167 minutes on the 14th and 0 of 167 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither morning qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1971 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Giza, 2030: Sunday 14 July.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "2030-07-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-14", "confidence": "boundary" } ], "quote": "In Giza, Vyāsa Pūjā 2030 falls on Sunday 14 July. Pūrṇimā runs from 08:18 on Sun 14 Jul to 05:12 on Mon 15 Jul, and reaches the first three muhūrtas after sunrise on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15543, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-07-14T08:17:55+03:00", "utc": "2030-07-14T05:17:55Z", "ms": 1910236675229.8862 }, "end": { "local": "2030-07-15T05:12:00+03:00", "utc": "2030-07-15T02:12:00Z", "ms": 1910311920242.7427 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-14T08:17:55+03:00", "utc": "2030-07-14T05:17:55Z", "ms": 1910236675229.8862 }, "end": { "local": "2030-07-15T05:12:00+03:00", "utc": "2030-07-15T02:12:00Z", "ms": 1910311920242.7427 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-07-14", "window": { "start": { "local": "2030-07-14T12:36:58+03:00", "utc": "2030-07-14T09:36:58Z", "ms": 1910252218056.6978 }, "end": { "local": "2030-07-14T13:24:58+03:00", "utc": "2030-07-14T10:24:58Z", "ms": 1910255098056.6978 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-07-15", "window": { "start": { "local": "2030-07-15T12:37:04+03:00", "utc": "2030-07-15T09:37:04Z", "ms": 1910338623938.2854 }, "end": { "local": "2030-07-15T13:25:04+03:00", "utc": "2030-07-15T10:25:04Z", "ms": 1910341503938.2854 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:18 on Sun 14 Jul to 05:12 on Mon 15 Jul.", "fact": "2030-07-14T05:17:55Z → 2030-07-15T02:12:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 14th, 12:37–13:25 on the 15th.", "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 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15543 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Giza, 2030: Sunday 14 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": "2030-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-14", "confidence": "determinate" } ], "quote": "In Giza, Guru Pūrṇimā 2030 falls on Sunday 14 July. Pūrṇimā runs from 08:18 on Sun 14 Jul to 05:12 on Mon 15 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31995, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-07-14T08:17:55+03:00", "utc": "2030-07-14T05:17:55Z", "ms": 1910236675229.8862 }, "end": { "local": "2030-07-15T05:12:00+03:00", "utc": "2030-07-15T02:12:00Z", "ms": 1910311920242.7427 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-14T08:17:55+03:00", "utc": "2030-07-14T05:17:55Z", "ms": 1910236675229.8862 }, "end": { "local": "2030-07-15T05:12:00+03:00", "utc": "2030-07-15T02:12:00Z", "ms": 1910311920242.7427 } }, "kaala": "sayahna", "days": [ { "local_date": "2030-07-14", "window": { "start": { "local": "2030-07-14T17:11:10+03:00", "utc": "2030-07-14T14:11:10Z", "ms": 1910268669730.4817 }, "end": { "local": "2030-07-14T19:57:58+03:00", "utc": "2030-07-14T16:57:58Z", "ms": 1910278677513.0044 } }, "covered_min": 167, "window_min": 167, "qualifies": true }, { "local_date": "2030-07-15", "window": { "start": { "local": "2030-07-15T17:11:00+03:00", "utc": "2030-07-15T14:11:00Z", "ms": 1910355059892.7678 }, "end": { "local": "2030-07-15T19:57:37+03:00", "utc": "2030-07-15T16:57:37Z", "ms": 1910365057195.756 } }, "covered_min": 0, "window_min": 167, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:18 on Sun 14 Jul to 05:12 on Mon 15 Jul.", "fact": "2030-07-14T05:17:55Z → 2030-07-15T02:12:00Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:11–19:58 on the 14th, 17:11–19:58 on the 15th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 167 of 167 minutes on the 14th and 0 of 167 on the 15th.", "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 31995 s" }, { "step": "ruling", "text": "Kokilā Vrata, Giza, 2030: Sunday 14 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": "2030-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-14", "confidence": "determinate" } ], "quote": "In Giza, Kokilā Vrata 2030 falls on Sunday 14 July. Pūrṇimā runs from 08:18 on Sun 14 Jul to 05:12 on Mon 15 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28390, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-07-14T08:17:55+03:00", "utc": "2030-07-14T05:17:55Z", "ms": 1910236675229.8862 }, "end": { "local": "2030-07-15T05:12:00+03:00", "utc": "2030-07-15T02:12:00Z", "ms": 1910311920242.7427 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2030-07-14T08:17:55+03:00", "utc": "2030-07-14T05:17:55Z", "ms": 1910236675229.8862 }, "end": { "local": "2030-07-15T05:12:00+03:00", "utc": "2030-07-15T02:12:00Z", "ms": 1910311920242.7427 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-07-13", "window": { "start": { "local": "2030-07-13T19:58:16+03:00", "utc": "2030-07-13T16:58:16Z", "ms": 1910192296377.2805 }, "end": { "local": "2030-07-13T21:19:02+03:00", "utc": "2030-07-13T18:19:02Z", "ms": 1910197142007.0286 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "2030-07-14", "window": { "start": { "local": "2030-07-14T19:57:58+03:00", "utc": "2030-07-14T16:57:58Z", "ms": 1910278677513.0044 }, "end": { "local": "2030-07-14T21:18:50+03:00", "utc": "2030-07-14T18:18:50Z", "ms": 1910283529935.3792 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:18 on Sun 14 Jul to 05:12 on Mon 15 Jul.", "fact": "2030-07-14T05:17:55Z → 2030-07-15T02:12:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:58–21:19 on the 13th, 19:58–21:19 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 0 of 81 minutes on the 13th and 81 of 81 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: unstated → only-day · margin 28390 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Giza, 2030: Sunday 14 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": "2030-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-14", "confidence": "determinate" } ], "quote": "In Giza, Śiva Śayanotsava 2030 falls on Sunday 14 July. Pūrṇimā runs from 08:18 on Sun 14 Jul to 05:12 on Mon 15 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10909, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2030-07-16T02:22:30+03:00", "utc": "2030-07-15T23:22:30Z", "ms": 1910388150459.6477 }, "end": { "local": "2030-07-16T23:58:28+03:00", "utc": "2030-07-16T20:58:28Z", "ms": 1910465907832.333 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-07-16T02:22:30+03:00", "utc": "2030-07-15T23:22:30Z", "ms": 1910388150459.6477 }, "end": { "local": "2030-07-16T23:58:28+03:00", "utc": "2030-07-16T20:58:28Z", "ms": 1910465907832.333 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-07-15", "window": { "start": { "local": "2030-07-15T20:14:19+03:00", "utc": "2030-07-15T17:14:19Z", "ms": 1910366059467.5872 }, "end": { "local": "2030-07-15T20:14:19+03:00", "utc": "2030-07-15T17:14:19Z", "ms": 1910366059467.5872 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-07-16", "window": { "start": { "local": "2030-07-16T20:56:38+03:00", "utc": "2030-07-16T17:56:38Z", "ms": 1910454998444.9287 }, "end": { "local": "2030-07-16T20:56:38+03:00", "utc": "2030-07-16T17:56:38Z", "ms": 1910454998444.9287 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 02:23 on Tue 16 Jul to 23:58 on Tue 16 Jul.", "fact": "2030-07-15T23:22:30Z → 2030-07-16T20:58:28Z" }, { "step": "kaala", "text": "Moonrise is at 20:14 on the 15th and 20:57 on the 16th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā 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. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10909 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Giza, 2030: Tuesday 16 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": "2030-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-16", "confidence": "determinate" } ], "quote": "In Giza, Aśūnya Śayana Vrata (Āṣāḍha) 2030 falls on Tuesday 16 July. Dvitīyā runs from 02:23 on Tue 16 Jul to 23:58 on Tue 16 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-07-17", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-17", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2035, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-07-17T22:08:27+03:00", "utc": "2030-07-17T19:08:27Z", "ms": 1910545706763.1611 }, "end": { "local": "2030-07-18T20:59:48+03:00", "utc": "2030-07-18T17:59:48Z", "ms": 1910627987884.1743 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-07-17T22:08:27+03:00", "utc": "2030-07-17T19:08:27Z", "ms": 1910545706763.1611 }, "end": { "local": "2030-07-18T20:59:48+03:00", "utc": "2030-07-18T17:59:48Z", "ms": 1910627987884.1743 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-07-17", "window": { "start": { "local": "2030-07-17T21:34:32+03:00", "utc": "2030-07-17T18:34:32Z", "ms": 1910543671872.2021 }, "end": { "local": "2030-07-17T21:34:32+03:00", "utc": "2030-07-17T18:34:32Z", "ms": 1910543671872.2021 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-07-18", "window": { "start": { "local": "2030-07-18T22:09:29+03:00", "utc": "2030-07-18T19:09:29Z", "ms": 1910632169474.4685 }, "end": { "local": "2030-07-18T22:09:29+03:00", "utc": "2030-07-18T19:09:29Z", "ms": 1910632169474.4685 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:08 on Wed 17 Jul to 21:00 on Thu 18 Jul.", "fact": "2030-07-17T19:08:27Z → 2030-07-18T17:59:48Z" }, { "step": "kaala", "text": "Moonrise is at 21:35 on the 17th and 22:09 on the 18th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 17th and is not on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 2035 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Wednesday 17 July.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-07-17", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-17", "confidence": "boundary" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Wednesday 17 July. Caturthī runs from 22:08 on Wed 17 Jul to 21:00 on Thu 18 Jul, and is current at moonrise on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-07-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-07-26", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4212, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-07-25T05:00:00+03:00", "utc": "2030-07-25T02:00:00Z", "ms": 1911175200124.7659 }, "end": { "local": "2030-07-26T07:32:44+03:00", "utc": "2030-07-26T04:32:44Z", "ms": 1911270763815.9546 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-07-25T05:00:00+03:00", "utc": "2030-07-25T02:00:00Z", "ms": 1911175200124.7659 }, "end": { "local": "2030-07-26T07:32:44+03:00", "utc": "2030-07-26T04:32:44Z", "ms": 1911270763815.9546 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-07-25", "window": { "start": { "local": "2030-07-25T06:10:12+03:00", "utc": "2030-07-25T03:10:12Z", "ms": 1911179411797.0205 }, "end": { "local": "2030-07-25T06:10:12+03:00", "utc": "2030-07-25T03:10:12Z", "ms": 1911179411797.0205 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-07-26", "window": { "start": { "local": "2030-07-26T06:10:47+03:00", "utc": "2030-07-26T03:10:47Z", "ms": 1911265847374.812 }, "end": { "local": "2030-07-26T06:10:47+03:00", "utc": "2030-07-26T03:10:47Z", "ms": 1911265847374.812 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:00 on Thu 25 Jul to 07:33 on Fri 26 Jul.", "fact": "2030-07-25T02:00:00Z → 2030-07-26T04:32:44Z" }, { "step": "kaala", "text": "Sunrise is at 06:10 on the 25th and 06:11 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 25th and is on the 26th.", "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 4212 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Giza, 2030: Friday 26 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": "2030-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-26", "confidence": "determinate" } ], "quote": "In Giza, Kāmikā Ekādaśī 2030 falls on Friday 26 July. Ekādaśī runs from 05:00 on Thu 25 Jul to 07:33 on Fri 26 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-07-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-07-27", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28970, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-07-27T09:52:04+03:00", "utc": "2030-07-27T06:52:04Z", "ms": 1911365523537.9197 }, "end": { "local": "2030-07-28T11:48:15+03:00", "utc": "2030-07-28T08:48:15Z", "ms": 1911458895012.0981 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-07-27T09:52:04+03:00", "utc": "2030-07-27T06:52:04Z", "ms": 1911365523537.9197 }, "end": { "local": "2030-07-28T11:48:15+03:00", "utc": "2030-07-28T08:48:15Z", "ms": 1911458895012.0981 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-07-27", "window": { "start": { "local": "2030-07-27T19:51:44+03:00", "utc": "2030-07-27T16:51:44Z", "ms": 1911401503642.5535 }, "end": { "local": "2030-07-27T21:14:26+03:00", "utc": "2030-07-27T18:14:26Z", "ms": 1911406465688.6973 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "2030-07-28", "window": { "start": { "local": "2030-07-28T19:51:05+03:00", "utc": "2030-07-28T16:51:05Z", "ms": 1911487865381.5989 }, "end": { "local": "2030-07-28T21:13:57+03:00", "utc": "2030-07-28T18:13:57Z", "ms": 1911492837327.1719 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:52 on Sat 27 Jul to 11:48 on Sun 28 Jul.", "fact": "2030-07-27T06:52:04Z → 2030-07-28T08:48:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:14 on the 27th, 19:51–21:14 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 83 of 83 minutes on the 27th and 0 of 83 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 28970 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Saturday 27 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": "2030-07-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-27", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Saturday 27 July. Trayodaśī runs from 09:52 on Sat 27 Jul to 11:48 on Sun 28 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-07-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-07-28", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37344, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-07-28T11:48:15+03:00", "utc": "2030-07-28T08:48:15Z", "ms": 1911458895012.0981 }, "end": { "local": "2030-07-29T13:15:22+03:00", "utc": "2030-07-29T10:15:22Z", "ms": 1911550521675.0747 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-07-28T11:48:15+03:00", "utc": "2030-07-28T08:48:15Z", "ms": 1911458895012.0981 }, "end": { "local": "2030-07-29T13:15:22+03:00", "utc": "2030-07-29T10:15:22Z", "ms": 1911550521675.0747 } }, "kaala": "nishita", "days": [ { "local_date": "2030-07-27", "window": { "start": { "local": "2030-07-28T00:37:51+03:00", "utc": "2030-07-27T21:37:51Z", "ms": 1911418671315.5928 }, "end": { "local": "2030-07-28T01:25:51+03:00", "utc": "2030-07-27T22:25:51Z", "ms": 1911421551315.5928 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-07-28", "window": { "start": { "local": "2030-07-29T00:37:50+03:00", "utc": "2030-07-28T21:37:50Z", "ms": 1911505070177.4976 }, "end": { "local": "2030-07-29T01:25:50+03:00", "utc": "2030-07-28T22:25:50Z", "ms": 1911507950177.4976 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:48 on Sun 28 Jul to 13:15 on Mon 29 Jul.", "fact": "2030-07-28T08:48:15Z → 2030-07-29T10:15:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:38–01:26 on the 27th, 00:38–01:26 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 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37344 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Sunday 28 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": "2030-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-07-28", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Sunday 28 July. Caturdaśī runs from 11:48 on Sun 28 Jul to 13:15 on Mon 29 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-07-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2170, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2030-08-01T14:31:25+03:00", "utc": "2030-08-01T11:31:25Z", "ms": 1911814284701.6538 }, "end": { "local": "2030-08-02T14:01:27+03:00", "utc": "2030-08-02T11:01:27Z", "ms": 1911898887085.976 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-08-01T14:31:25+03:00", "utc": "2030-08-01T11:31:25Z", "ms": 1911814284701.6538 }, "end": { "local": "2030-08-02T14:01:27+03:00", "utc": "2030-08-02T11:01:27Z", "ms": 1911898887085.976 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-01", "window": { "start": { "local": "2030-08-01T12:37:21+03:00", "utc": "2030-08-01T09:37:21Z", "ms": 1911807441446.3145 }, "end": { "local": "2030-08-01T13:25:21+03:00", "utc": "2030-08-01T10:25:21Z", "ms": 1911810321446.3145 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-08-02", "window": { "start": { "local": "2030-08-02T12:37:17+03:00", "utc": "2030-08-02T09:37:17Z", "ms": 1911893837247.3887 }, "end": { "local": "2030-08-02T13:25:17+03:00", "utc": "2030-08-02T10:25:17Z", "ms": 1911896717247.3887 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 14:31 on Thu 1 Aug to 14:01 on Fri 2 Aug.", "fact": "2030-08-01T11:31:25Z → 2030-08-02T11:01:27Z" }, { "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": "Tṛtīyā 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2170 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Giza, 2030: Friday 2 August.", "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": "2030-08-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-02", "confidence": "determinate" } ], "quote": "In Giza, Madhusravā Tṛtīyā (Hariyali Teej) 2030 falls on Friday 2 August. Tṛtīyā runs from 14:31 on Thu 1 Aug to 14:01 on Fri 2 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 976, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2030-08-03T13:08:56+03:00", "utc": "2030-08-03T10:08:56Z", "ms": 1911982136280.304 }, "end": { "local": "2030-08-04T11:56:41+03:00", "utc": "2030-08-04T08:56:41Z", "ms": 1912064200586.2808 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-08-03T13:08:56+03:00", "utc": "2030-08-03T10:08:56Z", "ms": 1911982136280.304 }, "end": { "local": "2030-08-04T11:56:41+03:00", "utc": "2030-08-04T08:56:41Z", "ms": 1912064200586.2808 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-03", "window": { "start": { "local": "2030-08-03T12:37:12+03:00", "utc": "2030-08-03T09:37:12Z", "ms": 1911980232436.3188 }, "end": { "local": "2030-08-03T13:25:12+03:00", "utc": "2030-08-03T10:25:12Z", "ms": 1911983112436.3188 } }, "covered_min": 16, "window_min": 48, "qualifies": true }, { "local_date": "2030-08-04", "window": { "start": { "local": "2030-08-04T12:37:07+03:00", "utc": "2030-08-04T09:37:07Z", "ms": 1912066627011.701 }, "end": { "local": "2030-08-04T13:25:07+03:00", "utc": "2030-08-04T10:25:07Z", "ms": 1912069507011.701 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 13:09 on Sat 3 Aug to 11:57 on Sun 4 Aug.", "fact": "2030-08-03T10:08:56Z → 2030-08-04T08:56:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 3rd, 12:37–13:25 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 16 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: paraviddha → only-day · margin 976 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Giza, 2030: Saturday 3 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": "2030-08-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-04", "confidence": "determinate" } ], "quote": "In Giza, Nāga Pañcamī 2030 falls on Saturday 3 August. Pañcamī runs from 13:09 on Sat 3 Aug to 11:57 on Sun 4 Aug and covers 16 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-08-03", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 976, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-08-02T14:01:27+03:00", "utc": "2030-08-02T11:01:27Z", "ms": 1911898887085.976 }, "end": { "local": "2030-08-03T13:08:56+03:00", "utc": "2030-08-03T10:08:56Z", "ms": 1911982136280.304 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-08-02T14:01:27+03:00", "utc": "2030-08-02T11:01:27Z", "ms": 1911898887085.976 }, "end": { "local": "2030-08-03T13:08:56+03:00", "utc": "2030-08-03T10:08:56Z", "ms": 1911982136280.304 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-02", "window": { "start": { "local": "2030-08-02T12:37:17+03:00", "utc": "2030-08-02T09:37:17Z", "ms": 1911893837247.3887 }, "end": { "local": "2030-08-02T13:25:17+03:00", "utc": "2030-08-02T10:25:17Z", "ms": 1911896717247.3887 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-08-03", "window": { "start": { "local": "2030-08-03T12:37:12+03:00", "utc": "2030-08-03T09:37:12Z", "ms": 1911980232436.3188 }, "end": { "local": "2030-08-03T13:25:12+03:00", "utc": "2030-08-03T10:25:12Z", "ms": 1911983112436.3188 } }, "covered_min": 32, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:01 on Fri 2 Aug to 13:09 on Sat 3 Aug.", "fact": "2030-08-02T11:01:27Z → 2030-08-03T10:08:56Z" }, { "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": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 2nd and 32 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 976 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Saturday 3 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": "2030-08-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-03", "confidence": "boundary" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Saturday 3 August. Caturthī runs from 14:01 on Fri 2 Aug to 13:09 on Sat 3 Aug and covers 32 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-08-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-08-09", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15369, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-08-09T02:03:02+03:00", "utc": "2030-08-08T23:03:02Z", "ms": 1912460582370.0537 }, "end": { "local": "2030-08-09T23:30:36+03:00", "utc": "2030-08-09T20:30:36Z", "ms": 1912537835556.8188 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-08-09T02:03:02+03:00", "utc": "2030-08-08T23:03:02Z", "ms": 1912460582370.0537 }, "end": { "local": "2030-08-09T23:30:36+03:00", "utc": "2030-08-09T20:30:36Z", "ms": 1912537835556.8188 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-08-09", "window": { "start": { "local": "2030-08-09T06:19:12+03:00", "utc": "2030-08-09T03:19:12Z", "ms": 1912475951584.685 }, "end": { "local": "2030-08-09T06:19:12+03:00", "utc": "2030-08-09T03:19:12Z", "ms": 1912475951584.685 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-08-10", "window": { "start": { "local": "2030-08-10T06:19:47+03:00", "utc": "2030-08-10T03:19:47Z", "ms": 1912562387241.7207 }, "end": { "local": "2030-08-10T06:19:47+03:00", "utc": "2030-08-10T03:19:47Z", "ms": 1912562387241.7207 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:03 on Fri 9 Aug to 23:31 on Fri 9 Aug.", "fact": "2030-08-08T23:03:02Z → 2030-08-09T20:30:36Z" }, { "step": "kaala", "text": "Sunrise is at 06:19 on the 9th and 06:20 on the 10th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 9th and is not on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15369 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Giza, 2030: Friday 9 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": "2030-08-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-09", "confidence": "determinate" } ], "quote": "In Giza, Putradā Ekādaśī 2030 falls on Friday 9 August. Ekādaśī runs from 02:03 on Fri 9 Aug to 23:31 on Fri 9 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-08-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27001, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2030-08-09T23:30:36+03:00", "utc": "2030-08-09T20:30:36Z", "ms": 1912537835556.8188 }, "end": { "local": "2030-08-10T20:54:23+03:00", "utc": "2030-08-10T17:54:23Z", "ms": 1912614862599.1887 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-08-09T23:30:36+03:00", "utc": "2030-08-09T20:30:36Z", "ms": 1912537835556.8188 }, "end": { "local": "2030-08-10T20:54:23+03:00", "utc": "2030-08-10T17:54:23Z", "ms": 1912614862599.1887 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-09", "window": { "start": { "local": "2030-08-09T12:36:31+03:00", "utc": "2030-08-09T09:36:31Z", "ms": 1912498590737.1538 }, "end": { "local": "2030-08-09T13:24:31+03:00", "utc": "2030-08-09T10:24:31Z", "ms": 1912501470737.1538 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-08-10", "window": { "start": { "local": "2030-08-10T12:36:22+03:00", "utc": "2030-08-10T09:36:22Z", "ms": 1912584981684.9521 }, "end": { "local": "2030-08-10T13:24:22+03:00", "utc": "2030-08-10T10:24:22Z", "ms": 1912587861684.9521 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 23:31 on Fri 9 Aug to 20:54 on Sat 10 Aug.", "fact": "2030-08-09T20:30:36Z → 2030-08-10T17:54:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 9th, 12:36–13:24 on the 10th.", "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 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27001 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Giza, 2030: Saturday 10 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": "2030-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-10", "confidence": "determinate" } ], "quote": "In Giza, Dāmodara Dvādaśī 2030 falls on Saturday 10 August. Dvādaśī runs from 23:31 on Fri 9 Aug to 20:54 on Sat 10 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/pradosha-vrata?on=2030-08-10", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 709, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-08-10T20:54:23+03:00", "utc": "2030-08-10T17:54:23Z", "ms": 1912614862599.1887 }, "end": { "local": "2030-08-11T18:19:57+03:00", "utc": "2030-08-11T15:19:57Z", "ms": 1912691996932.2869 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-08-10T20:54:23+03:00", "utc": "2030-08-10T17:54:23Z", "ms": 1912614862599.1887 }, "end": { "local": "2030-08-11T18:19:57+03:00", "utc": "2030-08-11T15:19:57Z", "ms": 1912691996932.2869 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-08-10", "window": { "start": { "local": "2030-08-10T19:40:56+03:00", "utc": "2030-08-10T16:40:56Z", "ms": 1912610456128.1838 }, "end": { "local": "2030-08-10T21:06:12+03:00", "utc": "2030-08-10T18:06:12Z", "ms": 1912615571681.983 } }, "covered_min": 12, "window_min": 85, "qualifies": true }, { "local_date": "2030-08-11", "window": { "start": { "local": "2030-08-11T19:40:01+03:00", "utc": "2030-08-11T16:40:01Z", "ms": 1912696801323.0293 }, "end": { "local": "2030-08-11T21:05:29+03:00", "utc": "2030-08-11T18:05:29Z", "ms": 1912701928906.662 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:54 on Sat 10 Aug to 18:20 on Sun 11 Aug.", "fact": "2030-08-10T17:54:23Z → 2030-08-11T15:19:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:41–21:06 on the 10th, 19:40–21:05 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 12 of 85 minutes on the 10th and 0 of 85 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 709 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Saturday 10 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": "2030-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-10", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Saturday 10 August. Trayodaśī runs from 20:54 on Sat 10 Aug to 18:20 on Sun 11 Aug and covers 12 of 85 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-08-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-13", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 12891, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-08-12T15:54:04+03:00", "utc": "2030-08-12T12:54:04Z", "ms": 1912769644138.4512 }, "end": { "local": "2030-08-13T13:44:25+03:00", "utc": "2030-08-13T10:44:25Z", "ms": 1912848265055.8672 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2030-08-13T02:46:43+03:00", "utc": "2030-08-12T23:46:43Z", "ms": 1912808802603.21 }, "end": { "local": "2030-08-13T13:44:25+03:00", "utc": "2030-08-13T10:44:25Z", "ms": 1912848265055.8672 } }, "kaala": "day", "days": [ { "local_date": "2030-08-12", "window": { "start": { "local": "2030-08-12T06:20:58+03:00", "utc": "2030-08-12T03:20:58Z", "ms": 1912735258200.276 }, "end": { "local": "2030-08-13T06:21:33+03:00", "utc": "2030-08-13T03:21:33Z", "ms": 1912821693495.0635 } }, "covered_min": 215, "window_min": 1441, "qualifies": true }, { "local_date": "2030-08-13", "window": { "start": { "local": "2030-08-13T06:21:33+03:00", "utc": "2030-08-13T03:21:33Z", "ms": 1912821693495.0635 }, "end": { "local": "2030-08-14T06:22:09+03:00", "utc": "2030-08-14T03:22:09Z", "ms": 1912908128664.9194 } }, "covered_min": 443, "window_min": 1441, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:54 on Mon 12 Aug to 13:44 on Tue 13 Aug. Its second half begins at 02:47 on Tue 13 Aug.", "fact": "2030-08-12T12:54:04Z → 2030-08-13T10:44:25Z · second half from 2030-08-12T23:46:43Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:21 on the 12th, and from 06:22 on the 13th.", "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 215 of 1441 minutes on the 12th and 443 of 1441 on the 13th.", "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 12891 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Giza, 2030: Tuesday 13 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": "2030-08-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-13", "confidence": "boundary" } ], "quote": "In Giza, Rakṣā Bandhana (Rakhi) 2030 falls on Tuesday 13 August. The second half of Pūrṇimā runs from 02:47 on Tue 13 Aug to 13:44 on Tue 13 Aug and falls on two days: 443 minutes of it on the 13th, 215 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/giza/festivals/2030/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": "/giza/festivals/2030/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1234, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-08-12T15:54:04+03:00", "utc": "2030-08-12T12:54:04Z", "ms": 1912769644138.4512 }, "end": { "local": "2030-08-13T13:44:25+03:00", "utc": "2030-08-13T10:44:25Z", "ms": 1912848265055.8672 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2030-08-12T15:54:04+03:00", "utc": "2030-08-12T12:54:04Z", "ms": 1912769644138.4512 }, "end": { "local": "2030-08-13T13:44:25+03:00", "utc": "2030-08-13T10:44:25Z", "ms": 1912848265055.8672 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-12", "window": { "start": { "local": "2030-08-12T12:36:02+03:00", "utc": "2030-08-12T09:36:02Z", "ms": 1912757761850.3687 }, "end": { "local": "2030-08-12T13:24:02+03:00", "utc": "2030-08-12T10:24:02Z", "ms": 1912760641850.3687 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-08-13", "window": { "start": { "local": "2030-08-13T12:35:51+03:00", "utc": "2030-08-13T09:35:51Z", "ms": 1912844151091.1372 }, "end": { "local": "2030-08-13T13:23:51+03:00", "utc": "2030-08-13T10:23:51Z", "ms": 1912847031091.1372 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:54 on Mon 12 Aug to 13:44 on Tue 13 Aug.", "fact": "2030-08-12T12:54:04Z → 2030-08-13T10:44:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 12th, 12:36–13:24 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1234 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Giza, 2030: Tuesday 13 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": "2030-08-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-13", "confidence": "determinate" } ], "quote": "In Giza, Ṛṣi Tarpaṇa 2030 falls on Tuesday 13 August. Pūrṇimā runs from 15:54 on Mon 12 Aug to 13:44 on Tue 13 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29183, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2030-08-14T11:59:08+03:00", "utc": "2030-08-14T08:59:08Z", "ms": 1912928348000.775 }, "end": { "local": "2030-08-15T10:46:09+03:00", "utc": "2030-08-15T07:46:09Z", "ms": 1913010368819.3733 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-14T11:59:08+03:00", "utc": "2030-08-14T08:59:08Z", "ms": 1912928348000.775 }, "end": { "local": "2030-08-15T10:46:09+03:00", "utc": "2030-08-15T07:46:09Z", "ms": 1913010368819.3733 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-08-14", "window": { "start": { "local": "2030-08-14T20:05:31+03:00", "utc": "2030-08-14T17:05:31Z", "ms": 1912957530861.2693 }, "end": { "local": "2030-08-14T20:05:31+03:00", "utc": "2030-08-14T17:05:31Z", "ms": 1912957530861.2693 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-08-15", "window": { "start": { "local": "2030-08-15T20:40:06+03:00", "utc": "2030-08-15T17:40:06Z", "ms": 1913046005797.7014 }, "end": { "local": "2030-08-15T20:40:06+03:00", "utc": "2030-08-15T17:40:06Z", "ms": 1913046005797.7014 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 11:59 on Wed 14 Aug to 10:46 on Thu 15 Aug.", "fact": "2030-08-14T08:59:08Z → 2030-08-15T07:46:09Z" }, { "step": "kaala", "text": "Moonrise is at 20:06 on the 14th and 20:40 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29183 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Giza, 2030: Wednesday 14 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": "2030-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-14", "confidence": "determinate" } ], "quote": "In Giza, Aśūnya Śayana Vrata 2030 falls on Wednesday 14 August. Dvitīyā runs from 11:59 on Wed 14 Aug to 10:46 on Thu 15 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6559, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2030-08-15T10:46:09+03:00", "utc": "2030-08-15T07:46:09Z", "ms": 1913010368819.3733 }, "end": { "local": "2030-08-16T10:12:17+03:00", "utc": "2030-08-16T07:12:17Z", "ms": 1913094737149.6433 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-15T10:46:09+03:00", "utc": "2030-08-15T07:46:09Z", "ms": 1913010368819.3733 }, "end": { "local": "2030-08-16T10:12:17+03:00", "utc": "2030-08-16T07:12:17Z", "ms": 1913094737149.6433 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-15", "window": { "start": { "local": "2030-08-15T12:35:28+03:00", "utc": "2030-08-15T09:35:28Z", "ms": 1913016927953.1072 }, "end": { "local": "2030-08-15T13:23:28+03:00", "utc": "2030-08-15T10:23:28Z", "ms": 1913019807953.1072 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-08-16", "window": { "start": { "local": "2030-08-16T12:35:16+03:00", "utc": "2030-08-16T09:35:16Z", "ms": 1913103315601.1897 }, "end": { "local": "2030-08-16T13:23:16+03:00", "utc": "2030-08-16T10:23:16Z", "ms": 1913106195601.1897 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 10:46 on Thu 15 Aug to 10:12 on Fri 16 Aug.", "fact": "2030-08-15T07:46:09Z → 2030-08-16T07:12:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 15th, 12:35–13:23 on the 16th.", "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 15th and 0 of 48 on the 16th.", "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 6559 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Giza, 2030: Thursday 15 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": "2030-08-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-15", "confidence": "determinate" } ], "quote": "In Giza, Kajjalī Tṛtīyā (Kajari Teej) 2030 falls on Thursday 15 August. Tṛtīyā runs from 10:46 on Thu 15 Aug to 10:12 on Fri 16 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23639, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-08-16T10:12:17+03:00", "utc": "2030-08-16T07:12:17Z", "ms": 1913094737149.6433 }, "end": { "local": "2030-08-17T10:22:09+03:00", "utc": "2030-08-17T07:22:09Z", "ms": 1913181729278.197 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-16T10:12:17+03:00", "utc": "2030-08-16T07:12:17Z", "ms": 1913094737149.6433 }, "end": { "local": "2030-08-17T10:22:09+03:00", "utc": "2030-08-17T07:22:09Z", "ms": 1913181729278.197 } }, "kaala": "sayahna", "days": [ { "local_date": "2030-08-16", "window": { "start": { "local": "2030-08-16T16:56:50+03:00", "utc": "2030-08-16T13:56:50Z", "ms": 1913119009784.6338 }, "end": { "local": "2030-08-16T19:35:13+03:00", "utc": "2030-08-16T16:35:13Z", "ms": 1913128512573.5967 } }, "covered_min": 158, "window_min": 158, "qualifies": true }, { "local_date": "2030-08-17", "window": { "start": { "local": "2030-08-17T16:56:08+03:00", "utc": "2030-08-17T13:56:08Z", "ms": 1913205368338.8145 }, "end": { "local": "2030-08-17T19:34:12+03:00", "utc": "2030-08-17T16:34:12Z", "ms": 1913214852067.8535 } }, "covered_min": 0, "window_min": 158, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:12 on Fri 16 Aug to 10:22 on Sat 17 Aug.", "fact": "2030-08-16T07:12:17Z → 2030-08-17T07:22:09Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:57–19:35 on the 16th, 16:56–19:34 on the 17th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 158 of 158 minutes on the 16th and 0 of 158 on the 17th.", "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 23639 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Giza, 2030: Friday 16 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": "2030-08-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-16", "confidence": "determinate" } ], "quote": "In Giza, Bahulā Caturthī 2030 falls on Friday 16 August. Caturthī runs from 10:12 on Fri 16 Aug to 10:22 on Sat 17 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-08-16", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39699, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-08-16T10:12:17+03:00", "utc": "2030-08-16T07:12:17Z", "ms": 1913094737149.6433 }, "end": { "local": "2030-08-17T10:22:09+03:00", "utc": "2030-08-17T07:22:09Z", "ms": 1913181729278.197 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-16T10:12:17+03:00", "utc": "2030-08-16T07:12:17Z", "ms": 1913094737149.6433 }, "end": { "local": "2030-08-17T10:22:09+03:00", "utc": "2030-08-17T07:22:09Z", "ms": 1913181729278.197 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-08-16", "window": { "start": { "local": "2030-08-16T21:13:56+03:00", "utc": "2030-08-16T18:13:56Z", "ms": 1913134435708.7263 }, "end": { "local": "2030-08-16T21:13:56+03:00", "utc": "2030-08-16T18:13:56Z", "ms": 1913134435708.7263 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-08-17", "window": { "start": { "local": "2030-08-17T21:48:07+03:00", "utc": "2030-08-17T18:48:07Z", "ms": 1913222886798.66 }, "end": { "local": "2030-08-17T21:48:07+03:00", "utc": "2030-08-17T18:48:07Z", "ms": 1913222886798.66 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:12 on Fri 16 Aug to 10:22 on Sat 17 Aug.", "fact": "2030-08-16T07:12:17Z → 2030-08-17T07:22:09Z" }, { "step": "kaala", "text": "Moonrise is at 21:14 on the 16th and 21:48 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 39699 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Friday 16 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": "2030-08-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-16", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Friday 16 August. Caturthī runs from 10:12 on Fri 16 Aug to 10:22 on Sat 17 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-08-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1111, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2030-08-18T11:16:54+03:00", "utc": "2030-08-18T08:16:54Z", "ms": 1913271413890.4685 }, "end": { "local": "2030-08-19T12:53:07+03:00", "utc": "2030-08-19T09:53:07Z", "ms": 1913363586913.3599 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-18T11:16:54+03:00", "utc": "2030-08-18T08:16:54Z", "ms": 1913271413890.4685 }, "end": { "local": "2030-08-19T12:53:07+03:00", "utc": "2030-08-19T09:53:07Z", "ms": 1913363586913.3599 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-18", "window": { "start": { "local": "2030-08-18T12:34:49+03:00", "utc": "2030-08-18T09:34:49Z", "ms": 1913276089398.5222 }, "end": { "local": "2030-08-18T13:22:49+03:00", "utc": "2030-08-18T10:22:49Z", "ms": 1913278969398.5222 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-08-19", "window": { "start": { "local": "2030-08-19T12:34:36+03:00", "utc": "2030-08-19T09:34:36Z", "ms": 1913362475573.9905 }, "end": { "local": "2030-08-19T13:22:36+03:00", "utc": "2030-08-19T10:22:36Z", "ms": 1913365355573.9905 } }, "covered_min": 19, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 11:17 on Sun 18 Aug to 12:53 on Mon 19 Aug.", "fact": "2030-08-18T08:16:54Z → 2030-08-19T09:53:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 18th, 12:35–13:23 on the 19th.", "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 18th and 19 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1111 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Giza, 2030: Monday 19 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": "2030-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-19", "confidence": "determinate" } ], "quote": "In Giza, Hala Ṣaṣṭhī 2030 falls on Monday 19 August. Ṣaṣṭhī runs from 11:17 on Sun 18 Aug to 12:53 on Mon 19 Aug and covers 19 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1111, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2030-08-19T12:53:07+03:00", "utc": "2030-08-19T09:53:07Z", "ms": 1913363586913.3599 }, "end": { "local": "2030-08-20T15:02:22+03:00", "utc": "2030-08-20T12:02:22Z", "ms": 1913457741609.3394 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-19T12:53:07+03:00", "utc": "2030-08-19T09:53:07Z", "ms": 1913363586913.3599 }, "end": { "local": "2030-08-20T15:02:22+03:00", "utc": "2030-08-20T12:02:22Z", "ms": 1913457741609.3394 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-19", "window": { "start": { "local": "2030-08-19T12:34:36+03:00", "utc": "2030-08-19T09:34:36Z", "ms": 1913362475573.9905 }, "end": { "local": "2030-08-19T13:22:36+03:00", "utc": "2030-08-19T10:22:36Z", "ms": 1913365355573.9905 } }, "covered_min": 29, "window_min": 48, "qualifies": true }, { "local_date": "2030-08-20", "window": { "start": { "local": "2030-08-20T12:34:21+03:00", "utc": "2030-08-20T09:34:21Z", "ms": 1913448861284.4897 }, "end": { "local": "2030-08-20T13:22:21+03:00", "utc": "2030-08-20T10:22:21Z", "ms": 1913451741284.4897 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:53 on Mon 19 Aug to 15:02 on Tue 20 Aug.", "fact": "2030-08-19T09:53:07Z → 2030-08-20T12:02:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 19th, 12:34–13:22 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 29 of 48 minutes on the 19th and 48 of 48 on the 20th.", "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 1111 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Giza, 2030: Monday 19 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": "2030-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-19", "confidence": "determinate" } ], "quote": "In Giza, Śītalā Saptamī 2030 falls on Monday 19 August. Saptamī runs from 12:53 on Mon 19 Aug to 15:02 on Tue 20 Aug and covers 29 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25363, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-08-20T15:02:22+03:00", "utc": "2030-08-20T12:02:22Z", "ms": 1913457741609.3394 }, "end": { "local": "2030-08-21T17:31:41+03:00", "utc": "2030-08-21T14:31:41Z", "ms": 1913553101005.439 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-20T15:02:22+03:00", "utc": "2030-08-20T12:02:22Z", "ms": 1913457741609.3394 }, "end": { "local": "2030-08-21T17:31:41+03:00", "utc": "2030-08-21T14:31:41Z", "ms": 1913553101005.439 } }, "kaala": "nishita", "days": [ { "local_date": "2030-08-20", "window": { "start": { "local": "2030-08-21T00:34:38+03:00", "utc": "2030-08-20T21:34:38Z", "ms": 1913492078428.4924 }, "end": { "local": "2030-08-21T01:22:38+03:00", "utc": "2030-08-20T22:22:38Z", "ms": 1913494958428.4924 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-08-21", "window": { "start": { "local": "2030-08-22T00:34:24+03:00", "utc": "2030-08-21T21:34:24Z", "ms": 1913578463622.8438 }, "end": { "local": "2030-08-22T01:22:24+03:00", "utc": "2030-08-21T22:22:24Z", "ms": 1913581343622.8438 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 15:02 on Tue 20 Aug to 17:32 on Wed 21 Aug.", "fact": "2030-08-20T12:02:22Z → 2030-08-21T14:31:41Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:35–01:23 on the 20th, 00:34–01:22 on the 21st.", "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 20th and 0 of 48 on the 21st.", "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 25363 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Giza, 2030: Tuesday 20 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": "2030-08-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-20", "confidence": "determinate" } ], "quote": "In Giza, Janmāṣṭamī 2030 falls on Tuesday 20 August. Aṣṭamī runs from 15:02 on Tue 20 Aug to 17:32 on Wed 21 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-08-24", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21822, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-08-23T22:27:33+03:00", "utc": "2030-08-23T19:27:33Z", "ms": 1913743653257.4463 }, "end": { "local": "2030-08-25T00:24:45+03:00", "utc": "2030-08-24T21:24:45Z", "ms": 1913837084798.0508 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-23T22:27:33+03:00", "utc": "2030-08-23T19:27:33Z", "ms": 1913743653257.4463 }, "end": { "local": "2030-08-25T00:24:45+03:00", "utc": "2030-08-24T21:24:45Z", "ms": 1913837084798.0508 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-08-24", "window": { "start": { "local": "2030-08-24T06:27:53+03:00", "utc": "2030-08-24T03:27:53Z", "ms": 1913772473432.2463 }, "end": { "local": "2030-08-24T06:27:53+03:00", "utc": "2030-08-24T03:27:53Z", "ms": 1913772473432.2463 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-08-25", "window": { "start": { "local": "2030-08-25T06:28:27+03:00", "utc": "2030-08-25T03:28:27Z", "ms": 1913858907207.5898 }, "end": { "local": "2030-08-25T06:28:27+03:00", "utc": "2030-08-25T03:28:27Z", "ms": 1913858907207.5898 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:28 on Fri 23 Aug to 00:25 on Sun 25 Aug.", "fact": "2030-08-23T19:27:33Z → 2030-08-24T21:24:45Z" }, { "step": "kaala", "text": "Sunrise is at 06:28 on the 24th and 06:28 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 not 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 21822 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Giza, 2030: Saturday 24 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": "2030-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-24", "confidence": "determinate" } ], "quote": "In Giza, Ajā Ekādaśī 2030 falls on Saturday 24 August. Ekādaśī runs from 22:28 on Fri 23 Aug to 00:25 on Sun 25 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-08-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-08-26", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17615, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-08-26T01:47:42+03:00", "utc": "2030-08-25T22:47:42Z", "ms": 1913928461551.0547 }, "end": { "local": "2030-08-27T02:31:56+03:00", "utc": "2030-08-26T23:31:56Z", "ms": 1914017516497.7517 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-26T01:47:42+03:00", "utc": "2030-08-25T22:47:42Z", "ms": 1913928461551.0547 }, "end": { "local": "2030-08-27T02:31:56+03:00", "utc": "2030-08-26T23:31:56Z", "ms": 1914017516497.7517 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-08-25", "window": { "start": { "local": "2030-08-25T19:25:39+03:00", "utc": "2030-08-25T16:25:39Z", "ms": 1913905539403.3308 }, "end": { "local": "2030-08-25T20:54:06+03:00", "utc": "2030-08-25T17:54:06Z", "ms": 1913910846263.4949 } }, "covered_min": 0, "window_min": 88, "qualifies": false }, { "local_date": "2030-08-26", "window": { "start": { "local": "2030-08-26T19:24:32+03:00", "utc": "2030-08-26T16:24:32Z", "ms": 1913991872127.5483 }, "end": { "local": "2030-08-26T20:53:12+03:00", "utc": "2030-08-26T17:53:12Z", "ms": 1913997192426.9783 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:48 on Mon 26 Aug to 02:32 on Tue 27 Aug.", "fact": "2030-08-25T22:47:42Z → 2030-08-26T23:31:56Z" }, { "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": "Trayodaśī 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. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17615 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Monday 26 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": "2030-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-26", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Monday 26 August. Trayodaśī runs from 01:48 on Mon 26 Aug to 02:32 on Tue 27 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-08-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20324, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-08-27T02:31:56+03:00", "utc": "2030-08-26T23:31:56Z", "ms": 1914017516497.7517 }, "end": { "local": "2030-08-28T02:37:25+03:00", "utc": "2030-08-27T23:37:25Z", "ms": 1914104245141.153 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-27T02:31:56+03:00", "utc": "2030-08-26T23:31:56Z", "ms": 1914017516497.7517 }, "end": { "local": "2030-08-28T02:37:25+03:00", "utc": "2030-08-27T23:37:25Z", "ms": 1914104245141.153 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-08-26", "window": { "start": { "local": "2030-08-26T19:24:32+03:00", "utc": "2030-08-26T16:24:32Z", "ms": 1913991872127.5483 }, "end": { "local": "2030-08-26T20:53:12+03:00", "utc": "2030-08-26T17:53:12Z", "ms": 1913997192426.9783 } }, "covered_min": 0, "window_min": 89, "qualifies": false }, { "local_date": "2030-08-27", "window": { "start": { "local": "2030-08-27T19:23:24+03:00", "utc": "2030-08-27T16:23:24Z", "ms": 1914078204225.0955 }, "end": { "local": "2030-08-27T20:52:18+03:00", "utc": "2030-08-27T17:52:18Z", "ms": 1914083538030.2725 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:32 on Tue 27 Aug to 02:37 on Wed 28 Aug.", "fact": "2030-08-26T23:31:56Z → 2030-08-27T23:37:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:25–20:53 on the 26th, 19:23–20:52 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 89 minutes on the 26th and 89 of 89 on the 27th.", "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 20324 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Giza, 2030: Tuesday 27 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": "2030-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-27", "confidence": "determinate" } ], "quote": "In Giza, Aghora Caturdaśī 2030 falls on Tuesday 27 August. Caturdaśī runs from 02:32 on Tue 27 Aug to 02:37 on Wed 28 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/shivaratri?on=2030-08-27", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4253, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-08-27T02:31:56+03:00", "utc": "2030-08-26T23:31:56Z", "ms": 1914017516497.7517 }, "end": { "local": "2030-08-28T02:37:25+03:00", "utc": "2030-08-27T23:37:25Z", "ms": 1914104245141.153 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-27T02:31:56+03:00", "utc": "2030-08-26T23:31:56Z", "ms": 1914017516497.7517 }, "end": { "local": "2030-08-28T02:37:25+03:00", "utc": "2030-08-27T23:37:25Z", "ms": 1914104245141.153 } }, "kaala": "nishita", "days": [ { "local_date": "2030-08-26", "window": { "start": { "local": "2030-08-27T00:33:03+03:00", "utc": "2030-08-26T21:33:03Z", "ms": 1914010383250.4102 }, "end": { "local": "2030-08-27T01:21:03+03:00", "utc": "2030-08-26T22:21:03Z", "ms": 1914013263250.4102 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-08-27", "window": { "start": { "local": "2030-08-28T00:32:46+03:00", "utc": "2030-08-27T21:32:46Z", "ms": 1914096765994.5093 }, "end": { "local": "2030-08-28T01:20:46+03:00", "utc": "2030-08-27T22:20:46Z", "ms": 1914099645994.5093 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:32 on Tue 27 Aug to 02:37 on Wed 28 Aug.", "fact": "2030-08-26T23:31:56Z → 2030-08-27T23:37:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:33–01:21 on the 26th, 00:33–01:21 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 4253 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Tuesday 27 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": "2030-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-27", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Tuesday 27 August. Caturdaśī runs from 02:32 on Tue 27 Aug to 02:37 on Wed 28 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-08-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37471, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2030-08-29T02:07:23+03:00", "utc": "2030-08-28T23:07:23Z", "ms": 1914188842816.4922 }, "end": { "local": "2030-08-30T01:07:11+03:00", "utc": "2030-08-29T22:07:11Z", "ms": 1914271630945.1743 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-29T02:07:23+03:00", "utc": "2030-08-28T23:07:23Z", "ms": 1914188842816.4922 }, "end": { "local": "2030-08-30T01:07:11+03:00", "utc": "2030-08-29T22:07:11Z", "ms": 1914271630945.1743 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-29", "window": { "start": { "local": "2030-08-29T12:31:54+03:00", "utc": "2030-08-29T09:31:54Z", "ms": 1914226313830.9185 }, "end": { "local": "2030-08-29T13:19:54+03:00", "utc": "2030-08-29T10:19:54Z", "ms": 1914229193830.9185 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-08-30", "window": { "start": { "local": "2030-08-30T12:31:36+03:00", "utc": "2030-08-30T09:31:36Z", "ms": 1914312695578.3042 }, "end": { "local": "2030-08-30T13:19:36+03:00", "utc": "2030-08-30T10:19:36Z", "ms": 1914315575578.3042 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:07 on Thu 29 Aug to 01:07 on Fri 30 Aug.", "fact": "2030-08-28T23:07:23Z → 2030-08-29T22:07:11Z" }, { "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": "Pratipadā 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 37471 s" }, { "step": "ruling", "text": "Rudra Vrata, Giza, 2030: Thursday 29 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": "2030-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-29", "confidence": "determinate" } ], "quote": "In Giza, Rudra Vrata 2030 falls on Thursday 29 August. Pratipadā runs from 02:07 on Thu 29 Aug to 01:07 on Fri 30 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31340, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2030-08-30T23:43:09+03:00", "utc": "2030-08-30T20:43:09Z", "ms": 1914352988690.576 }, "end": { "local": "2030-08-31T22:01:37+03:00", "utc": "2030-08-31T19:01:37Z", "ms": 1914433297440.4277 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-30T23:43:09+03:00", "utc": "2030-08-30T20:43:09Z", "ms": 1914352988690.576 }, "end": { "local": "2030-08-31T22:01:37+03:00", "utc": "2030-08-31T19:01:37Z", "ms": 1914433297440.4277 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-30", "window": { "start": { "local": "2030-08-30T12:31:36+03:00", "utc": "2030-08-30T09:31:36Z", "ms": 1914312695578.3042 }, "end": { "local": "2030-08-30T13:19:36+03:00", "utc": "2030-08-30T10:19:36Z", "ms": 1914315575578.3042 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-08-31", "window": { "start": { "local": "2030-08-31T12:31:17+03:00", "utc": "2030-08-31T09:31:17Z", "ms": 1914399076996.105 }, "end": { "local": "2030-08-31T13:19:17+03:00", "utc": "2030-08-31T10:19:17Z", "ms": 1914401956996.105 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 23:43 on Fri 30 Aug to 22:02 on Sat 31 Aug.", "fact": "2030-08-30T20:43:09Z → 2030-08-31T19:01:37Z" }, { "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": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31340 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Giza, 2030: Saturday 31 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": "2030-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-08-31", "confidence": "determinate" } ], "quote": "In Giza, Haritālikā Vrata (Hartalika Teej) 2030 falls on Saturday 31 August. Tṛtīyā runs from 23:43 on Fri 30 Aug to 22:02 on Sat 31 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24562, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-08-31T22:01:37+03:00", "utc": "2030-08-31T19:01:37Z", "ms": 1914433297440.4277 }, "end": { "local": "2030-09-01T20:08:20+03:00", "utc": "2030-09-01T17:08:20Z", "ms": 1914512900219.3716 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-08-31T22:01:37+03:00", "utc": "2030-08-31T19:01:37Z", "ms": 1914433297440.4277 }, "end": { "local": "2030-09-01T20:08:20+03:00", "utc": "2030-09-01T17:08:20Z", "ms": 1914512900219.3716 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-08-31", "window": { "start": { "local": "2030-08-31T12:31:17+03:00", "utc": "2030-08-31T09:31:17Z", "ms": 1914399076996.105 }, "end": { "local": "2030-08-31T13:19:17+03:00", "utc": "2030-08-31T10:19:17Z", "ms": 1914401956996.105 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-09-01", "window": { "start": { "local": "2030-09-01T12:30:58+03:00", "utc": "2030-09-01T09:30:58Z", "ms": 1914485458096.866 }, "end": { "local": "2030-09-01T13:18:58+03:00", "utc": "2030-09-01T10:18:58Z", "ms": 1914488338096.866 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:02 on Sat 31 Aug to 20:08 on Sun 1 Sep.", "fact": "2030-08-31T19:01:37Z → 2030-09-01T17:08:20Z" }, { "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": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24562 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Giza, 2030: Sunday 1 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-01", "confidence": "determinate" } ], "quote": "In Giza, Gaṇeśa Caturthī 2030 falls on Sunday 1 September. Caturthī runs from 22:02 on Sat 31 Aug to 20:08 on Sun 1 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17357, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2030-09-01T20:08:20+03:00", "utc": "2030-09-01T17:08:20Z", "ms": 1914512900219.3716 }, "end": { "local": "2030-09-02T18:07:56+03:00", "utc": "2030-09-02T15:07:56Z", "ms": 1914592076323.1167 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-09-01T20:08:20+03:00", "utc": "2030-09-01T17:08:20Z", "ms": 1914512900219.3716 }, "end": { "local": "2030-09-02T18:07:56+03:00", "utc": "2030-09-02T15:07:56Z", "ms": 1914592076323.1167 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-09-01", "window": { "start": { "local": "2030-09-01T12:30:58+03:00", "utc": "2030-09-01T09:30:58Z", "ms": 1914485458096.866 }, "end": { "local": "2030-09-01T13:18:58+03:00", "utc": "2030-09-01T10:18:58Z", "ms": 1914488338096.866 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-09-02", "window": { "start": { "local": "2030-09-02T12:30:39+03:00", "utc": "2030-09-02T09:30:39Z", "ms": 1914571838893.8193 }, "end": { "local": "2030-09-02T13:18:39+03:00", "utc": "2030-09-02T10:18:39Z", "ms": 1914574718893.8193 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 20:08 on Sun 1 Sep to 18:08 on Mon 2 Sep.", "fact": "2030-09-01T17:08:20Z → 2030-09-02T15:07:56Z" }, { "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": "Pañcamī 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 17357 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Giza, 2030: Monday 2 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rishi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day" } ], "kaala": "madhyahna", "priority": "disputed", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-02", "confidence": "determinate" } ], "quote": "In Giza, Ṛṣi Pañcamī 2030 falls on Monday 2 September. Pañcamī runs from 20:08 on Sun 1 Sep to 18:08 on Mon 2 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9932, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2030-09-02T18:07:56+03:00", "utc": "2030-09-02T15:07:56Z", "ms": 1914592076323.1167 }, "end": { "local": "2030-09-03T16:03:51+03:00", "utc": "2030-09-03T13:03:51Z", "ms": 1914671031393.072 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-09-02T18:07:56+03:00", "utc": "2030-09-02T15:07:56Z", "ms": 1914592076323.1167 }, "end": { "local": "2030-09-03T16:03:51+03:00", "utc": "2030-09-03T13:03:51Z", "ms": 1914671031393.072 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-09-02", "window": { "start": { "local": "2030-09-02T12:30:39+03:00", "utc": "2030-09-02T09:30:39Z", "ms": 1914571838893.8193 }, "end": { "local": "2030-09-02T13:18:39+03:00", "utc": "2030-09-02T10:18:39Z", "ms": 1914574718893.8193 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-09-03", "window": { "start": { "local": "2030-09-03T12:30:19+03:00", "utc": "2030-09-03T09:30:19Z", "ms": 1914658219401.104 }, "end": { "local": "2030-09-03T13:18:19+03:00", "utc": "2030-09-03T10:18:19Z", "ms": 1914661099401.104 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 18:08 on Mon 2 Sep to 16:04 on Tue 3 Sep.", "fact": "2030-09-02T15:07:56Z → 2030-09-03T13:03:51Z" }, { "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": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 2nd and 48 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9932 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Giza, 2030: Tuesday 3 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": "2030-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-03", "confidence": "determinate" } ], "quote": "In Giza, Sūrya Ṣaṣṭhī (Bhādrapada) 2030 falls on Tuesday 3 September. Ṣaṣṭhī runs from 18:08 on Mon 2 Sep to 16:04 on Tue 3 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2423, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2030-09-03T16:03:51+03:00", "utc": "2030-09-03T13:03:51Z", "ms": 1914671031393.072 }, "end": { "local": "2030-09-04T13:58:23+03:00", "utc": "2030-09-04T10:58:23Z", "ms": 1914749902990.6582 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-09-03T16:03:51+03:00", "utc": "2030-09-03T13:03:51Z", "ms": 1914671031393.072 }, "end": { "local": "2030-09-04T13:58:23+03:00", "utc": "2030-09-04T10:58:23Z", "ms": 1914749902990.6582 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-09-03", "window": { "start": { "local": "2030-09-03T12:30:19+03:00", "utc": "2030-09-03T09:30:19Z", "ms": 1914658219401.104 }, "end": { "local": "2030-09-03T13:18:19+03:00", "utc": "2030-09-03T10:18:19Z", "ms": 1914661099401.104 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-09-04", "window": { "start": { "local": "2030-09-04T12:30:00+03:00", "utc": "2030-09-04T09:30:00Z", "ms": 1914744599633.9407 }, "end": { "local": "2030-09-04T13:18:00+03:00", "utc": "2030-09-04T10:18:00Z", "ms": 1914747479633.9407 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 16:04 on Tue 3 Sep to 13:58 on Wed 4 Sep.", "fact": "2030-09-03T13:03:51Z → 2030-09-04T10:58:23Z" }, { "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": "Saptamī 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2423 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Giza, 2030: Wednesday 4 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": "2030-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-04", "confidence": "determinate" } ], "quote": "In Giza, Muktābharaṇa Vrata 2030 falls on Wednesday 4 September. Saptamī runs from 16:04 on Tue 3 Sep to 13:58 on Wed 4 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2199, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-09-04T13:58:23+03:00", "utc": "2030-09-04T10:58:23Z", "ms": 1914749902990.6582 }, "end": { "local": "2030-09-05T11:53:00+03:00", "utc": "2030-09-05T08:53:00Z", "ms": 1914828780364.2703 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-09-04T13:58:23+03:00", "utc": "2030-09-04T10:58:23Z", "ms": 1914749902990.6582 }, "end": { "local": "2030-09-05T11:53:00+03:00", "utc": "2030-09-05T08:53:00Z", "ms": 1914828780364.2703 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-09-04", "window": { "start": { "local": "2030-09-04T12:30:00+03:00", "utc": "2030-09-04T09:30:00Z", "ms": 1914744599633.9407 }, "end": { "local": "2030-09-04T13:18:00+03:00", "utc": "2030-09-04T10:18:00Z", "ms": 1914747479633.9407 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-09-05", "window": { "start": { "local": "2030-09-05T12:29:40+03:00", "utc": "2030-09-05T09:29:40Z", "ms": 1914830979608.7505 }, "end": { "local": "2030-09-05T13:17:40+03:00", "utc": "2030-09-05T10:17:40Z", "ms": 1914833859608.7505 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 13:58 on Wed 4 Sep to 11:53 on Thu 5 Sep.", "fact": "2030-09-04T10:58:23Z → 2030-09-05T08:53:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 4th, 12:30–13:18 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 0 of 48 on the 5th.", "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: unstated → second-day · margin 2199 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Giza, 2030: Thursday 5 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": "2030-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-05", "confidence": "boundary" } ], "quote": "In Giza, Rādhāṣṭamī 2030 falls on Thursday 5 September. Aṣṭamī runs from 13:58 on Wed 4 Sep to 11:53 on Thu 5 Sep, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-09-07", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2700, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-09-07T07:47:32+03:00", "utc": "2030-09-07T04:47:32Z", "ms": 1914986852379.1594 }, "end": { "local": "2030-09-08T05:51:07+03:00", "utc": "2030-09-08T02:51:07Z", "ms": 1915066266757.0112 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-09-07T07:47:32+03:00", "utc": "2030-09-07T04:47:32Z", "ms": 1914986852379.1594 }, "end": { "local": "2030-09-08T05:51:07+03:00", "utc": "2030-09-08T02:51:07Z", "ms": 1915066266757.0112 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-09-07", "window": { "start": { "local": "2030-09-07T06:35:35+03:00", "utc": "2030-09-07T03:35:35Z", "ms": 1914982535008.1487 }, "end": { "local": "2030-09-07T06:35:35+03:00", "utc": "2030-09-07T03:35:35Z", "ms": 1914982535008.1487 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-09-08", "window": { "start": { "local": "2030-09-08T06:36:07+03:00", "utc": "2030-09-08T03:36:07Z", "ms": 1915068967176.2405 }, "end": { "local": "2030-09-08T06:36:07+03:00", "utc": "2030-09-08T03:36:07Z", "ms": 1915068967176.2405 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:48 on Sat 7 Sep to 05:51 on Sun 8 Sep.", "fact": "2030-09-07T04:47:32Z → 2030-09-08T02:51:07Z" }, { "step": "kaala", "text": "Sunrise is at 06:36 on the 7th and 06:36 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 not on the 8th.", "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 2700 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Giza, 2030: Saturday 7 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": "2030-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-07", "confidence": "determinate" } ], "quote": "In Giza, Parivartanī Ekādaśī 2030 falls on Saturday 7 September. Ekādaśī runs from 07:48 on Sat 7 Sep to 05:51 on Sun 8 Sep, and is current at sunrise on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-09-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23851, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2030-09-08T05:51:07+03:00", "utc": "2030-09-08T02:51:07Z", "ms": 1915066266757.0112 }, "end": { "local": "2030-09-09T04:02:57+03:00", "utc": "2030-09-09T01:02:57Z", "ms": 1915146176766.8914 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-09-08T05:51:07+03:00", "utc": "2030-09-08T02:51:07Z", "ms": 1915066266757.0112 }, "end": { "local": "2030-09-09T04:02:57+03:00", "utc": "2030-09-09T01:02:57Z", "ms": 1915146176766.8914 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-09-08", "window": { "start": { "local": "2030-09-08T12:28:38+03:00", "utc": "2030-09-08T09:28:38Z", "ms": 1915090118168.08 }, "end": { "local": "2030-09-08T13:16:38+03:00", "utc": "2030-09-08T10:16:38Z", "ms": 1915092998168.08 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-09-09", "window": { "start": { "local": "2030-09-09T12:28:17+03:00", "utc": "2030-09-09T09:28:17Z", "ms": 1915176497299.8782 }, "end": { "local": "2030-09-09T13:16:17+03:00", "utc": "2030-09-09T10:16:17Z", "ms": 1915179377299.8782 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 05:51 on Sun 8 Sep to 04:03 on Mon 9 Sep.", "fact": "2030-09-08T02:51:07Z → 2030-09-09T01:02:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 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": "Dvādaśī 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23851 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Giza, 2030: Sunday 8 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": "2030-09-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-08", "confidence": "determinate" } ], "quote": "In Giza, Vāmana Jayantī 2030 falls on Sunday 8 September. Dvādaśī runs from 05:51 on Sun 8 Sep to 04:03 on Mon 9 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/pradosha-vrata?on=2030-09-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20864, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-09-09T04:02:57+03:00", "utc": "2030-09-09T01:02:57Z", "ms": 1915146176766.8914 }, "end": { "local": "2030-09-10T02:27:33+03:00", "utc": "2030-09-09T23:27:33Z", "ms": 1915226853495.3855 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-09-09T04:02:57+03:00", "utc": "2030-09-09T01:02:57Z", "ms": 1915146176766.8914 }, "end": { "local": "2030-09-10T02:27:33+03:00", "utc": "2030-09-09T23:27:33Z", "ms": 1915226853495.3855 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-09-08", "window": { "start": { "local": "2030-09-08T19:09:09+03:00", "utc": "2030-09-08T16:09:09Z", "ms": 1915114149159.9197 }, "end": { "local": "2030-09-08T20:40:49+03:00", "utc": "2030-09-08T17:40:49Z", "ms": 1915119649176.224 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "2030-09-09", "window": { "start": { "local": "2030-09-09T19:07:55+03:00", "utc": "2030-09-09T16:07:55Z", "ms": 1915200475317.5527 }, "end": { "local": "2030-09-09T20:39:49+03:00", "utc": "2030-09-09T17:39:49Z", "ms": 1915205989453.9956 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:03 on Mon 9 Sep to 02:28 on Tue 10 Sep.", "fact": "2030-09-09T01:02:57Z → 2030-09-09T23:27:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:09–20:41 on the 8th, 19:08–20:40 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 92 minutes on the 8th and 92 of 92 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20864 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Monday 9 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": "2030-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-09", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Monday 9 September. Trayodaśī runs from 04:03 on Mon 9 Sep to 02:28 on Tue 10 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-09-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14978, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-09-10T02:27:33+03:00", "utc": "2030-09-09T23:27:33Z", "ms": 1915226853495.3855 }, "end": { "local": "2030-09-11T01:10:30+03:00", "utc": "2030-09-10T22:10:30Z", "ms": 1915308630182.6084 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2030-09-10T02:27:33+03:00", "utc": "2030-09-09T23:27:33Z", "ms": 1915226853495.3855 }, "end": { "local": "2030-09-11T01:10:30+03:00", "utc": "2030-09-10T22:10:30Z", "ms": 1915308630182.6084 } }, "kaala": "udaya-3", "days": [ { "local_date": "2030-09-10", "window": { "start": { "local": "2030-09-10T06:37:11+03:00", "utc": "2030-09-10T03:37:11Z", "ms": 1915241831340.8745 }, "end": { "local": "2030-09-10T09:07:05+03:00", "utc": "2030-09-10T06:07:05Z", "ms": 1915250825314.0479 } }, "covered_min": 150, "window_min": 150, "qualifies": true }, { "local_date": "2030-09-11", "window": { "start": { "local": "2030-09-11T06:37:43+03:00", "utc": "2030-09-11T03:37:43Z", "ms": 1915328263368.1194 }, "end": { "local": "2030-09-11T09:07:16+03:00", "utc": "2030-09-11T06:07:16Z", "ms": 1915337236065.9263 } }, "covered_min": 0, "window_min": 150, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:28 on Tue 10 Sep to 01:11 on Wed 11 Sep.", "fact": "2030-09-09T23:27:33Z → 2030-09-10T22:10:30Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:37–09:07 on the 10th, 06:38–09:07 on the 11th.", "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 150 of 150 minutes on the 10th and 0 of 150 on the 11th.", "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 14978 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Giza, 2030: Tuesday 10 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": "2030-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-10", "confidence": "determinate" } ], "quote": "In Giza, Ananta Caturdaśī 2030 falls on Tuesday 10 September. Caturdaśī runs from 02:28 on Tue 10 Sep to 01:11 on Wed 11 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-09-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16857, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-09-15T01:01:55+03:00", "utc": "2030-09-14T22:01:55Z", "ms": 1915653715042.6912 }, "end": { "local": "2030-09-16T02:32:17+03:00", "utc": "2030-09-15T23:32:17Z", "ms": 1915745536624.4421 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-15T01:01:55+03:00", "utc": "2030-09-14T22:01:55Z", "ms": 1915653715042.6912 }, "end": { "local": "2030-09-16T02:32:17+03:00", "utc": "2030-09-15T23:32:17Z", "ms": 1915745536624.4421 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-09-14", "window": { "start": { "local": "2030-09-14T20:20:58+03:00", "utc": "2030-09-14T17:20:58Z", "ms": 1915636857587.7844 }, "end": { "local": "2030-09-14T20:20:58+03:00", "utc": "2030-09-14T17:20:58Z", "ms": 1915636857587.7844 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-09-15", "window": { "start": { "local": "2030-09-15T20:58:12+03:00", "utc": "2030-09-15T17:58:12Z", "ms": 1915725491565.6597 }, "end": { "local": "2030-09-15T20:58:12+03:00", "utc": "2030-09-15T17:58:12Z", "ms": 1915725491565.6597 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:02 on Sun 15 Sep to 02:32 on Mon 16 Sep.", "fact": "2030-09-14T22:01:55Z → 2030-09-15T23:32:17Z" }, { "step": "kaala", "text": "Moonrise is at 20:21 on the 14th and 20:58 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 16857 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Sunday 15 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": "2030-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-15", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Sunday 15 September. Caturthī runs from 01:02 on Sun 15 Sep to 02:32 on Mon 16 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-09-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25066, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2030-09-17T04:35:50+03:00", "utc": "2030-09-17T01:35:50Z", "ms": 1915839350264.442 }, "end": { "local": "2030-09-18T07:02:53+03:00", "utc": "2030-09-18T04:02:53Z", "ms": 1915934573447.5474 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-17T04:35:50+03:00", "utc": "2030-09-17T01:35:50Z", "ms": 1915839350264.442 }, "end": { "local": "2030-09-18T07:02:53+03:00", "utc": "2030-09-18T04:02:53Z", "ms": 1915934573447.5474 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-09-16", "window": { "start": { "local": "2030-09-16T21:38:04+03:00", "utc": "2030-09-16T18:38:04Z", "ms": 1915814284448.4705 }, "end": { "local": "2030-09-16T21:38:04+03:00", "utc": "2030-09-16T18:38:04Z", "ms": 1915814284448.4705 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-09-17", "window": { "start": { "local": "2030-09-17T22:21:06+03:00", "utc": "2030-09-17T19:21:06Z", "ms": 1915903266146.109 }, "end": { "local": "2030-09-17T22:21:06+03:00", "utc": "2030-09-17T19:21:06Z", "ms": 1915903266146.109 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 04:36 on Tue 17 Sep to 07:03 on Wed 18 Sep.", "fact": "2030-09-17T01:35:50Z → 2030-09-18T04:02:53Z" }, { "step": "kaala", "text": "Moonrise is at 21:38 on the 16th and 22:21 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 25066 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Giza, 2030: Tuesday 17 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": "2030-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-17", "confidence": "determinate" } ], "quote": "In Giza, Candra Ṣaṣṭhī 2030 falls on Tuesday 17 September. Ṣaṣṭhī runs from 04:36 on Tue 17 Sep to 07:03 on Wed 18 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24262, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-09-19T09:39:35+03:00", "utc": "2030-09-19T06:39:35Z", "ms": 1916030375425.3618 }, "end": { "local": "2030-09-20T12:09:49+03:00", "utc": "2030-09-20T09:09:49Z", "ms": 1916125789400.428 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-19T09:39:35+03:00", "utc": "2030-09-19T06:39:35Z", "ms": 1916030375425.3618 }, "end": { "local": "2030-09-20T12:09:49+03:00", "utc": "2030-09-20T09:09:49Z", "ms": 1916125789400.428 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-09-19", "window": { "start": { "local": "2030-09-19T18:55:27+03:00", "utc": "2030-09-19T15:55:27Z", "ms": 1916063727022.7722 }, "end": { "local": "2030-09-19T20:29:44+03:00", "utc": "2030-09-19T17:29:44Z", "ms": 1916069383802.4448 } }, "covered_min": 94, "window_min": 94, "qualifies": true }, { "local_date": "2030-09-20", "window": { "start": { "local": "2030-09-20T18:54:12+03:00", "utc": "2030-09-20T15:54:12Z", "ms": 1916150051850.9639 }, "end": { "local": "2030-09-20T20:28:43+03:00", "utc": "2030-09-20T17:28:43Z", "ms": 1916155722997.7979 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 09:40 on Thu 19 Sep to 12:10 on Fri 20 Sep.", "fact": "2030-09-19T06:39:35Z → 2030-09-20T09:09:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:55–20:30 on the 19th, 18:54–20:29 on the 20th.", "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 19th and 0 of 95 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24262 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Giza, 2030: Thursday 19 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": "2030-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-19", "confidence": "determinate" } ], "quote": "In Giza, Jitāṣṭamī (Jitiya) 2030 falls on Thursday 19 September. Aṣṭamī runs from 09:40 on Thu 19 Sep to 12:10 on Fri 20 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37927, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-09-19T09:39:35+03:00", "utc": "2030-09-19T06:39:35Z", "ms": 1916030375425.3618 }, "end": { "local": "2030-09-20T12:09:49+03:00", "utc": "2030-09-20T09:09:49Z", "ms": 1916125789400.428 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-19T09:39:35+03:00", "utc": "2030-09-19T06:39:35Z", "ms": 1916030375425.3618 }, "end": { "local": "2030-09-20T12:09:49+03:00", "utc": "2030-09-20T09:09:49Z", "ms": 1916125789400.428 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-09-18", "window": { "start": { "local": "2030-09-18T23:07:29+03:00", "utc": "2030-09-18T20:07:29Z", "ms": 1915992448712.4226 }, "end": { "local": "2030-09-18T23:07:29+03:00", "utc": "2030-09-18T20:07:29Z", "ms": 1915992448712.4226 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-09-19", "window": { "start": { "local": "2030-09-19T23:57:04+03:00", "utc": "2030-09-19T20:57:04Z", "ms": 1916081823834.0986 }, "end": { "local": "2030-09-19T23:57:04+03:00", "utc": "2030-09-19T20:57:04Z", "ms": 1916081823834.0986 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 09:40 on Thu 19 Sep to 12:10 on Fri 20 Sep.", "fact": "2030-09-19T06:39:35Z → 2030-09-20T09:09:49Z" }, { "step": "kaala", "text": "Moonrise is at 23:07 on the 18th and 23:57 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37927 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Giza, 2030: Thursday 19 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": "2030-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-19", "confidence": "determinate" } ], "quote": "In Giza, Mahālakṣmī Vrata Samāpana 2030 falls on Thursday 19 September. Aṣṭamī runs from 09:40 on Thu 19 Sep to 12:10 on Fri 20 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-09-23", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32840, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-09-22T15:50:58+03:00", "utc": "2030-09-22T12:50:58Z", "ms": 1916311857676.3306 }, "end": { "local": "2030-09-23T16:41:03+03:00", "utc": "2030-09-23T13:41:03Z", "ms": 1916401263001.2283 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-22T15:50:58+03:00", "utc": "2030-09-22T12:50:58Z", "ms": 1916311857676.3306 }, "end": { "local": "2030-09-23T16:41:03+03:00", "utc": "2030-09-23T13:41:03Z", "ms": 1916401263001.2283 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-09-22", "window": { "start": { "local": "2030-09-22T06:43:38+03:00", "utc": "2030-09-22T03:43:38Z", "ms": 1916279018166.6528 }, "end": { "local": "2030-09-22T06:43:38+03:00", "utc": "2030-09-22T03:43:38Z", "ms": 1916279018166.6528 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-09-23", "window": { "start": { "local": "2030-09-23T06:44:11+03:00", "utc": "2030-09-23T03:44:11Z", "ms": 1916365451025.556 }, "end": { "local": "2030-09-23T06:44:11+03:00", "utc": "2030-09-23T03:44:11Z", "ms": 1916365451025.556 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:51 on Sun 22 Sep to 16:41 on Mon 23 Sep.", "fact": "2030-09-22T12:50:58Z → 2030-09-23T13:41:03Z" }, { "step": "kaala", "text": "Sunrise is at 06:44 on the 22nd and 06:44 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 22nd and is on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32840 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Giza, 2030: Monday 23 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": "2030-09-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-23", "confidence": "determinate" } ], "quote": "In Giza, Indirā Ekādaśī 2030 falls on Monday 23 September. Ekādaśī runs from 15:51 on Sun 22 Sep to 16:41 on Mon 23 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-09-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-09-24", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7439, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-09-24T16:45:13+03:00", "utc": "2030-09-24T13:45:13Z", "ms": 1916487912707.5234 }, "end": { "local": "2030-09-25T16:05:06+03:00", "utc": "2030-09-25T13:05:06Z", "ms": 1916571906494.5295 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-24T16:45:13+03:00", "utc": "2030-09-24T13:45:13Z", "ms": 1916487912707.5234 }, "end": { "local": "2030-09-25T16:05:06+03:00", "utc": "2030-09-25T13:05:06Z", "ms": 1916571906494.5295 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-09-24", "window": { "start": { "local": "2030-09-24T18:49:12+03:00", "utc": "2030-09-24T15:49:12Z", "ms": 1916495351959.0366 }, "end": { "local": "2030-09-24T20:24:41+03:00", "utc": "2030-09-24T17:24:41Z", "ms": 1916501080660.6514 } }, "covered_min": 95, "window_min": 95, "qualifies": true }, { "local_date": "2030-09-25", "window": { "start": { "local": "2030-09-25T18:47:57+03:00", "utc": "2030-09-25T15:47:57Z", "ms": 1916581677319.6396 }, "end": { "local": "2030-09-25T20:23:40+03:00", "utc": "2030-09-25T17:23:40Z", "ms": 1916587420420.7732 } }, "covered_min": 0, "window_min": 96, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:45 on Tue 24 Sep to 16:05 on Wed 25 Sep.", "fact": "2030-09-24T13:45:13Z → 2030-09-25T13:05:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:49–20:25 on the 24th, 18:48–20:24 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 95 of 95 minutes on the 24th and 0 of 96 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 7439 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Tuesday 24 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": "2030-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-24", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Tuesday 24 September. Trayodaśī runs from 16:45 on Tue 24 Sep to 16:05 on Wed 25 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-09-25", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29867, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-09-25T16:05:06+03:00", "utc": "2030-09-25T13:05:06Z", "ms": 1916571906494.5295 }, "end": { "local": "2030-09-26T14:45:51+03:00", "utc": "2030-09-26T11:45:51Z", "ms": 1916653550551.9863 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-25T16:05:06+03:00", "utc": "2030-09-25T13:05:06Z", "ms": 1916571906494.5295 }, "end": { "local": "2030-09-26T14:45:51+03:00", "utc": "2030-09-26T11:45:51Z", "ms": 1916653550551.9863 } }, "kaala": "nishita", "days": [ { "local_date": "2030-09-25", "window": { "start": { "local": "2030-09-26T00:22:54+03:00", "utc": "2030-09-25T21:22:54Z", "ms": 1916601773948.8904 }, "end": { "local": "2030-09-26T01:10:54+03:00", "utc": "2030-09-25T22:10:54Z", "ms": 1916604653948.8904 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-09-26", "window": { "start": { "local": "2030-09-27T00:22:33+03:00", "utc": "2030-09-26T21:22:33Z", "ms": 1916688153492.867 }, "end": { "local": "2030-09-27T01:10:33+03:00", "utc": "2030-09-26T22:10:33Z", "ms": 1916691033492.867 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:05 on Wed 25 Sep to 14:46 on Thu 26 Sep.", "fact": "2030-09-25T13:05:06Z → 2030-09-26T11:45:51Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:23–01:11 on the 25th, 00:23–01:11 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 29867 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Wednesday 25 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": "2030-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-25", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Wednesday 25 September. Caturdaśī runs from 16:05 on Wed 25 Sep to 14:46 on Thu 26 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-09-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2849, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2030-09-26T14:45:51+03:00", "utc": "2030-09-26T11:45:51Z", "ms": 1916653550551.9863 }, "end": { "local": "2030-09-27T12:54:42+03:00", "utc": "2030-09-27T09:54:42Z", "ms": 1916733281679.016 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-26T14:45:51+03:00", "utc": "2030-09-26T11:45:51Z", "ms": 1916653550551.9863 }, "end": { "local": "2030-09-27T12:54:42+03:00", "utc": "2030-09-27T09:54:42Z", "ms": 1916733281679.016 } }, "kaala": "aparahna", "days": [ { "local_date": "2030-09-26", "window": { "start": { "local": "2030-09-26T13:58:22+03:00", "utc": "2030-09-26T10:58:22Z", "ms": 1916650701950.5923 }, "end": { "local": "2030-09-26T16:22:32+03:00", "utc": "2030-09-26T13:22:32Z", "ms": 1916659352408.076 } }, "covered_min": 97, "window_min": 144, "qualifies": true }, { "local_date": "2030-09-27", "window": { "start": { "local": "2030-09-27T13:57:51+03:00", "utc": "2030-09-27T10:57:51Z", "ms": 1916737070821.0234 }, "end": { "local": "2030-09-27T16:21:40+03:00", "utc": "2030-09-27T13:21:40Z", "ms": 1916745699721.3066 } }, "covered_min": 0, "window_min": 144, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 14:46 on Thu 26 Sep to 12:55 on Fri 27 Sep.", "fact": "2030-09-26T11:45:51Z → 2030-09-27T09:54:42Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:58–16:23 on the 26th, 13:58–16:22 on the 27th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 97 of 144 minutes on the 26th and 0 of 144 on the 27th.", "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 2849 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Giza, 2030: Thursday 26 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": "2030-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-26", "confidence": "determinate" } ], "quote": "In Giza, Mahālaya Amāvāsyā 2030 falls on Thursday 26 September. Amāvasyā runs from 14:46 on Thu 26 Sep to 12:55 on Fri 27 Sep and covers 97 of 144 minutes of aparāhṇa that afternoon.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 915, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2030-09-27T12:54:42+03:00", "utc": "2030-09-27T09:54:42Z", "ms": 1916733281679.016 }, "end": { "local": "2030-09-28T10:40:00+03:00", "utc": "2030-09-28T07:40:00Z", "ms": 1916811599608.0754 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-27T12:54:42+03:00", "utc": "2030-09-27T09:54:42Z", "ms": 1916733281679.016 }, "end": { "local": "2030-09-28T10:40:00+03:00", "utc": "2030-09-28T07:40:00Z", "ms": 1916811599608.0754 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-09-27", "window": { "start": { "local": "2030-09-27T12:21:56+03:00", "utc": "2030-09-27T09:21:56Z", "ms": 1916731316370.8818 }, "end": { "local": "2030-09-27T13:09:56+03:00", "utc": "2030-09-27T10:09:56Z", "ms": 1916734196370.8818 } }, "covered_min": 15, "window_min": 48, "qualifies": true }, { "local_date": "2030-09-28", "window": { "start": { "local": "2030-09-28T12:21:36+03:00", "utc": "2030-09-28T09:21:36Z", "ms": 1916817696233.7803 }, "end": { "local": "2030-09-28T13:09:36+03:00", "utc": "2030-09-28T10:09:36Z", "ms": 1916820576233.7803 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:55 on Fri 27 Sep to 10:40 on Sat 28 Sep.", "fact": "2030-09-27T09:54:42Z → 2030-09-28T07:40:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 27th, 12:22–13:10 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 15 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 915 s" }, { "step": "ruling", "text": "Navarātrārambha, Giza, 2030: Friday 27 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": "2030-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-27", "confidence": "determinate" } ], "quote": "In Giza, Navarātrārambha (Navratri) 2030 falls on Friday 27 September. Pratipadā runs from 12:55 on Fri 27 Sep to 10:40 on Sat 28 Sep and covers 15 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-09-30", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24456, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-09-30T05:33:21+03:00", "utc": "2030-09-30T02:33:21Z", "ms": 1916966000716.5076 }, "end": { "local": "2030-10-01T02:56:21+03:00", "utc": "2030-09-30T23:56:21Z", "ms": 1917042981300.6921 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-09-30T05:33:21+03:00", "utc": "2030-09-30T02:33:21Z", "ms": 1916966000716.5076 }, "end": { "local": "2030-10-01T02:56:21+03:00", "utc": "2030-09-30T23:56:21Z", "ms": 1917042981300.6921 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-09-30", "window": { "start": { "local": "2030-09-30T12:20:57+03:00", "utc": "2030-09-30T09:20:57Z", "ms": 1916990456664.8232 }, "end": { "local": "2030-09-30T13:08:57+03:00", "utc": "2030-09-30T10:08:57Z", "ms": 1916993336664.8232 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-10-01", "window": { "start": { "local": "2030-10-01T12:20:37+03:00", "utc": "2030-10-01T09:20:37Z", "ms": 1917076837265.0408 }, "end": { "local": "2030-10-01T13:08:37+03:00", "utc": "2030-10-01T10:08:37Z", "ms": 1917079717265.0408 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:33 on Mon 30 Sep to 02:56 on Tue 1 Oct.", "fact": "2030-09-30T02:33:21Z → 2030-09-30T23:56:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 30th, 12:21–13:09 on the 1st.", "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 30th and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24456 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Monday 30 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": "2030-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-09-30", "confidence": "determinate" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Monday 30 September. Caturthī runs from 05:33 on Mon 30 Sep to 02:56 on Tue 1 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-09-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31580, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2030-10-02T22:03:30+03:00", "utc": "2030-10-02T19:03:30Z", "ms": 1917198210143.1638 }, "end": { "local": "2030-10-03T19:54:58+03:00", "utc": "2030-10-03T16:54:58Z", "ms": 1917276898255.268 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-10-02T22:03:30+03:00", "utc": "2030-10-02T19:03:30Z", "ms": 1917198210143.1638 }, "end": { "local": "2030-10-03T19:54:58+03:00", "utc": "2030-10-03T16:54:58Z", "ms": 1917276898255.268 } }, "kaala": "udaya-1", "days": [ { "local_date": "2030-10-03", "window": { "start": { "local": "2030-10-03T06:49:50+03:00", "utc": "2030-10-03T03:49:50Z", "ms": 1917229789703.6606 }, "end": { "local": "2030-10-03T07:37:03+03:00", "utc": "2030-10-03T04:37:03Z", "ms": 1917232622985.7456 } }, "covered_min": 47, "window_min": 47, "qualifies": true }, { "local_date": "2030-10-04", "window": { "start": { "local": "2030-10-04T06:50:25+03:00", "utc": "2030-10-04T03:50:25Z", "ms": 1917316224765.9382 }, "end": { "local": "2030-10-04T07:37:31+03:00", "utc": "2030-10-04T04:37:31Z", "ms": 1917319050905.1199 } }, "covered_min": 0, "window_min": 47, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 22:04 on Wed 2 Oct to 19:55 on Thu 3 Oct.", "fact": "2030-10-02T19:03:30Z → 2030-10-03T16:54:58Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:50–07:37 on the 3rd, 06:50–07:38 on the 4th.", "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 47 of 47 minutes on the 3rd and 0 of 47 on the 4th.", "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 31580 s" }, { "step": "ruling", "text": "Durgā Saptamī, Giza, 2030: Thursday 3 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": "2030-10-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-03", "confidence": "determinate" } ], "quote": "In Giza, Durgā Saptamī 2030 falls on Thursday 3 October. Saptamī runs from 22:04 on Wed 2 Oct to 19:55 on Thu 3 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17618, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-10-03T19:54:58+03:00", "utc": "2030-10-03T16:54:58Z", "ms": 1917276898255.268 }, "end": { "local": "2030-10-04T18:01:19+03:00", "utc": "2030-10-04T15:01:19Z", "ms": 1917356478530.7488 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-10-03T19:54:58+03:00", "utc": "2030-10-03T16:54:58Z", "ms": 1917276898255.268 }, "end": { "local": "2030-10-04T18:01:19+03:00", "utc": "2030-10-04T15:01:19Z", "ms": 1917356478530.7488 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-10-03", "window": { "start": { "local": "2030-10-03T12:19:59+03:00", "utc": "2030-10-03T09:19:59Z", "ms": 1917249599319.2986 }, "end": { "local": "2030-10-03T13:07:59+03:00", "utc": "2030-10-03T10:07:59Z", "ms": 1917252479319.2986 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-10-04", "window": { "start": { "local": "2030-10-04T12:19:41+03:00", "utc": "2030-10-04T09:19:41Z", "ms": 1917335980809.8013 }, "end": { "local": "2030-10-04T13:07:41+03:00", "utc": "2030-10-04T10:07:41Z", "ms": 1917338860809.8013 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 19:55 on Thu 3 Oct to 18:01 on Fri 4 Oct.", "fact": "2030-10-03T16:54:58Z → 2030-10-04T15:01:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 3rd, 12:20–13:08 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 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17618 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Giza, 2030: Friday 4 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": "2030-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-04", "confidence": "determinate" } ], "quote": "In Giza, Mahāṣṭamī (Durga Ashtami) 2030 falls on Friday 4 October. Aṣṭamī runs from 19:55 on Thu 3 Oct to 18:01 on Fri 4 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11785, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2030-10-04T18:01:19+03:00", "utc": "2030-10-04T15:01:19Z", "ms": 1917356478530.7488 }, "end": { "local": "2030-10-05T16:23:48+03:00", "utc": "2030-10-05T13:23:48Z", "ms": 1917437027506.9863 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-10-04T18:01:19+03:00", "utc": "2030-10-04T15:01:19Z", "ms": 1917356478530.7488 }, "end": { "local": "2030-10-05T16:23:48+03:00", "utc": "2030-10-05T13:23:48Z", "ms": 1917437027506.9863 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-10-04", "window": { "start": { "local": "2030-10-04T12:19:41+03:00", "utc": "2030-10-04T09:19:41Z", "ms": 1917335980809.8013 }, "end": { "local": "2030-10-04T13:07:41+03:00", "utc": "2030-10-04T10:07:41Z", "ms": 1917338860809.8013 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-10-05", "window": { "start": { "local": "2030-10-05T12:19:23+03:00", "utc": "2030-10-05T09:19:23Z", "ms": 1917422362635.2373 }, "end": { "local": "2030-10-05T13:07:23+03:00", "utc": "2030-10-05T10:07:23Z", "ms": 1917425242635.2373 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 18:01 on Fri 4 Oct to 16:24 on Sat 5 Oct.", "fact": "2030-10-04T15:01:19Z → 2030-10-05T13:23:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 4th, 12:19–13:07 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11785 s" }, { "step": "ruling", "text": "Mahānavamī, Giza, 2030: Saturday 5 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": "2030-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-05", "confidence": "determinate" } ], "quote": "In Giza, Mahānavamī 2030 falls on Saturday 5 October. Navamī runs from 18:01 on Fri 4 Oct to 16:24 on Sat 5 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12663, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2030-10-05T16:23:48+03:00", "utc": "2030-10-05T13:23:48Z", "ms": 1917437027506.9863 }, "end": { "local": "2030-10-06T15:03:31+03:00", "utc": "2030-10-06T12:03:31Z", "ms": 1917518610698.6199 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "2030-10-05T23:15:51+03:00", "utc": "2030-10-05T20:15:51Z", "ms": 1917461751021.4475 }, "end": { "local": "2030-10-06T15:03:31+03:00", "utc": "2030-10-06T12:03:31Z", "ms": 1917518610698.6199 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "2030-10-05T23:15:51+03:00", "utc": "2030-10-05T20:15:51Z", "ms": 1917461751021.4475 }, "end": { "local": "2030-10-06T22:43:26+03:00", "utc": "2030-10-06T19:43:26Z", "ms": 1917546206342.64 } } }, "kaala": "daytime", "days": [ { "local_date": "2030-10-05", "window": { "start": { "local": "2030-10-05T06:51:00+03:00", "utc": "2030-10-05T03:51:00Z", "ms": 1917402660082.4841 }, "end": { "local": "2030-10-05T18:35:45+03:00", "utc": "2030-10-05T15:35:45Z", "ms": 1917444945187.9907 } }, "covered_min": 0, "window_min": 705, "qualifies": false }, { "local_date": "2030-10-06", "window": { "start": { "local": "2030-10-06T06:51:36+03:00", "utc": "2030-10-06T03:51:36Z", "ms": 1917489095665.5244 }, "end": { "local": "2030-10-06T18:34:34+03:00", "utc": "2030-10-06T15:34:34Z", "ms": 1917531273967.1492 } }, "covered_min": 492, "window_min": 703, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 16:24 on Sat 5 Oct to 15:04 on Sun 6 Oct, and Śravaṇa from 23:16 on Sat 5 Oct to 22:43 on Sun 6 Oct. They are together from 23:16 on Sat 5 Oct to 15:04 on Sun 6 Oct.", "fact": "2030-10-05T20:15:51Z → 2030-10-06T12:03:31Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:51–18:36 on the 5th, 06:52–18:35 on the 6th.", "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 705 minutes on the 5th and 492 of 703 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12663 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Giza, 2030: Sunday 6 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vijaya-dashami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara." } ], "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day", "conjunction": { "nakshatra": "Śravaṇa", "kaala": "daytime" } }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-06", "confidence": "determinate" } ], "quote": "In Giza, Vijayā Daśamī (Dussehra) 2030 falls on Sunday 6 October. Daśamī runs from 16:24 on Sat 5 Oct to 15:04 on Sun 6 Oct and is with Śravaṇa in the day time that day, for 492 minutes.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-10-07", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25778, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-10-06T15:03:31+03:00", "utc": "2030-10-06T12:03:31Z", "ms": 1917518610698.6199 }, "end": { "local": "2030-10-07T14:01:49+03:00", "utc": "2030-10-07T11:01:49Z", "ms": 1917601309206.2737 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-10-06T15:03:31+03:00", "utc": "2030-10-06T12:03:31Z", "ms": 1917518610698.6199 }, "end": { "local": "2030-10-07T14:01:49+03:00", "utc": "2030-10-07T11:01:49Z", "ms": 1917601309206.2737 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-10-06", "window": { "start": { "local": "2030-10-06T06:51:36+03:00", "utc": "2030-10-06T03:51:36Z", "ms": 1917489095665.5244 }, "end": { "local": "2030-10-06T06:51:36+03:00", "utc": "2030-10-06T03:51:36Z", "ms": 1917489095665.5244 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-10-07", "window": { "start": { "local": "2030-10-07T06:52:12+03:00", "utc": "2030-10-07T03:52:12Z", "ms": 1917575531528.2668 }, "end": { "local": "2030-10-07T06:52:12+03:00", "utc": "2030-10-07T03:52:12Z", "ms": 1917575531528.2668 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:04 on Sun 6 Oct to 14:02 on Mon 7 Oct.", "fact": "2030-10-06T12:03:31Z → 2030-10-07T11:01:49Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 6th and 06:52 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25778 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Giza, 2030: Monday 7 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": "2030-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-07", "confidence": "determinate" } ], "quote": "In Giza, Pāśāṅkuśā Ekādaśī 2030 falls on Monday 7 October. Ekādaśī runs from 15:04 on Sun 6 Oct to 14:02 on Mon 7 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-10-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-10-08", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18695, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-10-08T13:20:38+03:00", "utc": "2030-10-08T10:20:38Z", "ms": 1917685237547.8433 }, "end": { "local": "2030-10-09T13:02:28+03:00", "utc": "2030-10-09T10:02:28Z", "ms": 1917770547551.7593 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2030-10-08T13:20:38+03:00", "utc": "2030-10-08T10:20:38Z", "ms": 1917685237547.8433 }, "end": { "local": "2030-10-09T13:02:28+03:00", "utc": "2030-10-09T10:02:28Z", "ms": 1917770547551.7593 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-10-08", "window": { "start": { "local": "2030-10-08T18:32:13+03:00", "utc": "2030-10-08T15:32:13Z", "ms": 1917703932980.0479 }, "end": { "local": "2030-10-08T20:11:02+03:00", "utc": "2030-10-08T17:11:02Z", "ms": 1917709862469.2527 } }, "covered_min": 99, "window_min": 99, "qualifies": true }, { "local_date": "2030-10-09", "window": { "start": { "local": "2030-10-09T18:31:03+03:00", "utc": "2030-10-09T15:31:03Z", "ms": 1917790263275.046 }, "end": { "local": "2030-10-09T20:10:07+03:00", "utc": "2030-10-09T17:10:07Z", "ms": 1917796206963.1787 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:21 on Tue 8 Oct to 13:02 on Wed 9 Oct.", "fact": "2030-10-08T10:20:38Z → 2030-10-09T10:02:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:32–20:11 on the 8th, 18:31–20:10 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 8th and 0 of 99 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18695 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Tuesday 8 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": "2030-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-08", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Tuesday 8 October. Trayodaśī runs from 13:21 on Tue 8 Oct to 13:02 on Wed 9 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-10-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 357, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-10-14T18:39:07+03:00", "utc": "2030-10-14T15:39:07Z", "ms": 1918222746969.3965 }, "end": { "local": "2030-10-15T21:07:37+03:00", "utc": "2030-10-15T18:07:37Z", "ms": 1918318057466.8318 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-14T18:39:07+03:00", "utc": "2030-10-14T15:39:07Z", "ms": 1918222746969.3965 }, "end": { "local": "2030-10-15T21:07:37+03:00", "utc": "2030-10-15T18:07:37Z", "ms": 1918318057466.8318 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-10-14", "window": { "start": { "local": "2030-10-14T20:16:28+03:00", "utc": "2030-10-14T17:16:28Z", "ms": 1918228588112.162 }, "end": { "local": "2030-10-14T20:16:28+03:00", "utc": "2030-10-14T17:16:28Z", "ms": 1918228588112.162 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-10-15", "window": { "start": { "local": "2030-10-15T21:01:40+03:00", "utc": "2030-10-15T18:01:40Z", "ms": 1918317700464.0183 }, "end": { "local": "2030-10-15T21:01:40+03:00", "utc": "2030-10-15T18:01:40Z", "ms": 1918317700464.0183 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:39 on Mon 14 Oct to 21:08 on Tue 15 Oct.", "fact": "2030-10-14T15:39:07Z → 2030-10-15T18:07:37Z" }, { "step": "kaala", "text": "Moonrise is at 20:16 on the 14th and 21:02 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both moonrises qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 357 s" }, { "step": "ruling", "text": "Karaka Caturthī, Giza, 2030: Monday 14 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": "2030-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-14", "confidence": "boundary" } ], "quote": "In Giza, Karaka Caturthī (Karwa Chauth) 2030 falls on Monday 14 October. Caturthī runs from 18:39 on Mon 14 Oct to 21:08 on Tue 15 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-10-14", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-14", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 357, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-10-14T18:39:07+03:00", "utc": "2030-10-14T15:39:07Z", "ms": 1918222746969.3965 }, "end": { "local": "2030-10-15T21:07:37+03:00", "utc": "2030-10-15T18:07:37Z", "ms": 1918318057466.8318 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-14T18:39:07+03:00", "utc": "2030-10-14T15:39:07Z", "ms": 1918222746969.3965 }, "end": { "local": "2030-10-15T21:07:37+03:00", "utc": "2030-10-15T18:07:37Z", "ms": 1918318057466.8318 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-10-14", "window": { "start": { "local": "2030-10-14T20:16:28+03:00", "utc": "2030-10-14T17:16:28Z", "ms": 1918228588112.162 }, "end": { "local": "2030-10-14T20:16:28+03:00", "utc": "2030-10-14T17:16:28Z", "ms": 1918228588112.162 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-10-15", "window": { "start": { "local": "2030-10-15T21:01:40+03:00", "utc": "2030-10-15T18:01:40Z", "ms": 1918317700464.0183 }, "end": { "local": "2030-10-15T21:01:40+03:00", "utc": "2030-10-15T18:01:40Z", "ms": 1918317700464.0183 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:39 on Mon 14 Oct to 21:08 on Tue 15 Oct.", "fact": "2030-10-14T15:39:07Z → 2030-10-15T18:07:37Z" }, { "step": "kaala", "text": "Moonrise is at 20:16 on the 14th and 21:02 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both moonrises qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 357 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Monday 14 October.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-10-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-14", "confidence": "boundary" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Monday 14 October. Caturthī runs from 18:39 on Mon 14 Oct to 21:08 on Tue 15 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-10-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18943, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-10-19T04:49:35+03:00", "utc": "2030-10-19T01:49:35Z", "ms": 1918604974692.462 }, "end": { "local": "2030-10-20T06:42:05+03:00", "utc": "2030-10-20T03:42:05Z", "ms": 1918698125157.4734 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-19T04:49:35+03:00", "utc": "2030-10-19T01:49:35Z", "ms": 1918604974692.462 }, "end": { "local": "2030-10-20T06:42:05+03:00", "utc": "2030-10-20T03:42:05Z", "ms": 1918698125157.4734 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-10-18", "window": { "start": { "local": "2030-10-18T23:33:52+03:00", "utc": "2030-10-18T20:33:52Z", "ms": 1918586031595.138 }, "end": { "local": "2030-10-18T23:33:52+03:00", "utc": "2030-10-18T20:33:52Z", "ms": 1918586031595.138 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-10-19", "window": { "start": { "local": "2030-10-20T00:28:22+03:00", "utc": "2030-10-19T21:28:22Z", "ms": 1918675701625.486 }, "end": { "local": "2030-10-20T00:28:22+03:00", "utc": "2030-10-19T21:28:22Z", "ms": 1918675701625.486 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:50 on Sat 19 Oct to 06:42 on Sun 20 Oct.", "fact": "2030-10-19T01:49:35Z → 2030-10-20T03:42:05Z" }, { "step": "kaala", "text": "Moonrise is at 23:34 on the 18th and 00:28 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18943 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Giza, 2030: Saturday 19 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": "2030-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-19", "confidence": "determinate" } ], "quote": "In Giza, Ahoyī Aṣṭamī 2030 falls on Saturday 19 October. Aṣṭamī runs from 04:50 on Sat 19 Oct to 06:42 on Sun 20 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-10-23", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2854, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-10-22T08:16:39+03:00", "utc": "2030-10-22T05:16:39Z", "ms": 1918876598652.936 }, "end": { "local": "2030-10-23T07:50:08+03:00", "utc": "2030-10-23T04:50:08Z", "ms": 1918961408251.2302 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-22T08:16:39+03:00", "utc": "2030-10-22T05:16:39Z", "ms": 1918876598652.936 }, "end": { "local": "2030-10-23T07:50:08+03:00", "utc": "2030-10-23T04:50:08Z", "ms": 1918961408251.2302 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-10-22", "window": { "start": { "local": "2030-10-22T07:01:52+03:00", "utc": "2030-10-22T04:01:52Z", "ms": 1918872111879.3164 }, "end": { "local": "2030-10-22T07:01:52+03:00", "utc": "2030-10-22T04:01:52Z", "ms": 1918872111879.3164 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-10-23", "window": { "start": { "local": "2030-10-23T07:02:34+03:00", "utc": "2030-10-23T04:02:34Z", "ms": 1918958553821.9138 }, "end": { "local": "2030-10-23T07:02:34+03:00", "utc": "2030-10-23T04:02:34Z", "ms": 1918958553821.9138 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:17 on Tue 22 Oct to 07:50 on Wed 23 Oct.", "fact": "2030-10-22T05:16:39Z → 2030-10-23T04:50:08Z" }, { "step": "kaala", "text": "Sunrise is at 07:02 on the 22nd and 07:03 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 22nd and is on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2854 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Giza, 2030: Wednesday 23 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": "2030-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-23", "confidence": "determinate" } ], "quote": "In Giza, Ramā Ekādaśī 2030 falls on Wednesday 23 October. Ekādaśī runs from 08:17 on Tue 22 Oct to 07:50 on Wed 23 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-10-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37553, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2030-10-23T07:50:08+03:00", "utc": "2030-10-23T04:50:08Z", "ms": 1918961408251.2302 }, "end": { "local": "2030-10-24T06:36:13+03:00", "utc": "2030-10-24T03:36:13Z", "ms": 1919043373255.6926 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-23T07:50:08+03:00", "utc": "2030-10-23T04:50:08Z", "ms": 1918961408251.2302 }, "end": { "local": "2030-10-24T06:36:13+03:00", "utc": "2030-10-24T03:36:13Z", "ms": 1919043373255.6926 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-10-23", "window": { "start": { "local": "2030-10-23T18:16:01+03:00", "utc": "2030-10-23T15:16:01Z", "ms": 1918998961148.348 }, "end": { "local": "2030-10-23T19:58:19+03:00", "utc": "2030-10-23T16:58:19Z", "ms": 1919005099154.383 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "2030-10-24", "window": { "start": { "local": "2030-10-24T18:15:03+03:00", "utc": "2030-10-24T15:15:03Z", "ms": 1919085303197.0906 }, "end": { "local": "2030-10-24T19:57:35+03:00", "utc": "2030-10-24T16:57:35Z", "ms": 1919091454636.3457 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 07:50 on Wed 23 Oct to 06:36 on Thu 24 Oct.", "fact": "2030-10-23T04:50:08Z → 2030-10-24T03:36:13Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–19:58 on the 23rd, 18:15–19:58 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 23rd and 0 of 103 on the 24th.", "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 37553 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Giza, 2030: Wednesday 23 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": "2030-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-23", "confidence": "determinate" } ], "quote": "In Giza, Govatsa Dvādaśī (Vasu Baras) 2030 falls on Wednesday 23 October. Dvādaśī runs from 07:50 on Wed 23 Oct to 06:36 on Thu 24 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31381, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-10-24T06:36:13+03:00", "utc": "2030-10-24T03:36:13Z", "ms": 1919043373255.6926 }, "end": { "local": "2030-10-25T04:40:36+03:00", "utc": "2030-10-25T01:40:36Z", "ms": 1919122836020.5286 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-24T06:36:13+03:00", "utc": "2030-10-24T03:36:13Z", "ms": 1919043373255.6926 }, "end": { "local": "2030-10-25T04:40:36+03:00", "utc": "2030-10-25T01:40:36Z", "ms": 1919122836020.5286 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-10-23", "window": { "start": { "local": "2030-10-23T18:16:01+03:00", "utc": "2030-10-23T15:16:01Z", "ms": 1918998961148.348 }, "end": { "local": "2030-10-23T19:58:19+03:00", "utc": "2030-10-23T16:58:19Z", "ms": 1919005099154.383 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "2030-10-24", "window": { "start": { "local": "2030-10-24T18:15:03+03:00", "utc": "2030-10-24T15:15:03Z", "ms": 1919085303197.0906 }, "end": { "local": "2030-10-24T19:57:35+03:00", "utc": "2030-10-24T16:57:35Z", "ms": 1919091454636.3457 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:36 on Thu 24 Oct to 04:41 on Fri 25 Oct.", "fact": "2030-10-24T03:36:13Z → 2030-10-25T01:40:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–19:58 on the 23rd, 18:15–19:58 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 0 of 102 minutes on the 23rd and 103 of 103 on the 24th.", "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 31381 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Giza, 2030: Thursday 24 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": "2030-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-24", "confidence": "determinate" } ], "quote": "In Giza, Yama Dīpadāna 2030 falls on Thursday 24 October. Trayodaśī runs from 06:36 on Thu 24 Oct to 04:41 on Fri 25 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/pradosha-vrata?on=2030-10-24", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31381, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-10-24T06:36:13+03:00", "utc": "2030-10-24T03:36:13Z", "ms": 1919043373255.6926 }, "end": { "local": "2030-10-25T04:40:36+03:00", "utc": "2030-10-25T01:40:36Z", "ms": 1919122836020.5286 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-24T06:36:13+03:00", "utc": "2030-10-24T03:36:13Z", "ms": 1919043373255.6926 }, "end": { "local": "2030-10-25T04:40:36+03:00", "utc": "2030-10-25T01:40:36Z", "ms": 1919122836020.5286 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-10-23", "window": { "start": { "local": "2030-10-23T18:16:01+03:00", "utc": "2030-10-23T15:16:01Z", "ms": 1918998961148.348 }, "end": { "local": "2030-10-23T19:58:19+03:00", "utc": "2030-10-23T16:58:19Z", "ms": 1919005099154.383 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "2030-10-24", "window": { "start": { "local": "2030-10-24T18:15:03+03:00", "utc": "2030-10-24T15:15:03Z", "ms": 1919085303197.0906 }, "end": { "local": "2030-10-24T19:57:35+03:00", "utc": "2030-10-24T16:57:35Z", "ms": 1919091454636.3457 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:36 on Thu 24 Oct to 04:41 on Fri 25 Oct.", "fact": "2030-10-24T03:36:13Z → 2030-10-25T01:40:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–19:58 on the 23rd, 18:15–19:58 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 0 of 102 minutes on the 23rd and 103 of 103 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31381 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Thursday 24 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": "2030-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-24", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Thursday 24 October. Trayodaśī runs from 06:36 on Thu 24 Oct to 04:41 on Fri 25 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-10-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2452, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-10-25T04:40:36+03:00", "utc": "2030-10-25T01:40:36Z", "ms": 1919122836020.5286 }, "end": { "local": "2030-10-26T02:11:10+03:00", "utc": "2030-10-25T23:11:10Z", "ms": 1919200270004.3486 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-25T04:40:36+03:00", "utc": "2030-10-25T01:40:36Z", "ms": 1919122836020.5286 }, "end": { "local": "2030-10-26T02:11:10+03:00", "utc": "2030-10-25T23:11:10Z", "ms": 1919200270004.3486 } }, "kaala": "arunodaya", "days": [ { "local_date": "2030-10-25", "window": { "start": { "local": "2030-10-25T05:21:28+03:00", "utc": "2030-10-25T02:21:28Z", "ms": 1919125287552.2483 }, "end": { "local": "2030-10-25T07:03:59+03:00", "utc": "2030-10-25T04:03:59Z", "ms": 1919131438991.5034 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "2030-10-26", "window": { "start": { "local": "2030-10-26T05:21:57+03:00", "utc": "2030-10-26T02:21:57Z", "ms": 1919211717417.725 }, "end": { "local": "2030-10-26T07:04:42+03:00", "utc": "2030-10-26T04:04:42Z", "ms": 1919217882210.743 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:41 on Fri 25 Oct to 02:11 on Sat 26 Oct.", "fact": "2030-10-25T01:40:36Z → 2030-10-25T23:11:10Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:21–07:04 on the 25th, 05:22–07:05 on the 26th.", "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 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 dawn qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2452 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Giza, 2030: Friday 25 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": "2030-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-25", "confidence": "determinate" } ], "quote": "In Giza, Naraka Caturdaśī (Choti Diwali) 2030 falls on Friday 25 October. Caturdaśī runs from 04:41 on Fri 25 Oct to 02:11 on Sat 26 Oct and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-25", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3498, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2030-10-26T02:11:10+03:00", "utc": "2030-10-25T23:11:10Z", "ms": 1919200270004.3486 }, "end": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-26T02:11:10+03:00", "utc": "2030-10-25T23:11:10Z", "ms": 1919200270004.3486 }, "end": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 } }, "kaala": "nishita", "days": [ { "local_date": "2030-10-25", "window": { "start": { "local": "2030-10-26T00:15:24+03:00", "utc": "2030-10-25T21:15:24Z", "ms": 1919193324236.9258 }, "end": { "local": "2030-10-26T01:03:24+03:00", "utc": "2030-10-25T22:03:24Z", "ms": 1919196204236.9258 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-10-26", "window": { "start": { "local": "2030-10-27T00:15:18+03:00", "utc": "2030-10-26T21:15:18Z", "ms": 1919279718107.9119 }, "end": { "local": "2030-10-27T01:03:18+03:00", "utc": "2030-10-26T22:03:18Z", "ms": 1919282598107.9119 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 02:11 on Sat 26 Oct to 23:17 on Sat 26 Oct.", "fact": "2030-10-25T23:11:10Z → 2030-10-26T20:17:01Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:15–01:03 on the 25th, 00:15–01:03 on the 26th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 0 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 3498 s" }, { "step": "ruling", "text": "Kālī Pūjā, Giza, 2030: Friday 25 October.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "2030-10-25", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-25", "confidence": "boundary" } ], "quote": "In Giza, Kālī Pūjā 2030 falls on Friday 25 October. Amāvasyā runs from 02:11 on Sat 26 Oct to 23:17 on Sat 26 Oct, and reaches niśītha on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/shivaratri?on=2030-10-25", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4066, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-10-25T04:40:36+03:00", "utc": "2030-10-25T01:40:36Z", "ms": 1919122836020.5286 }, "end": { "local": "2030-10-26T02:11:10+03:00", "utc": "2030-10-25T23:11:10Z", "ms": 1919200270004.3486 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-25T04:40:36+03:00", "utc": "2030-10-25T01:40:36Z", "ms": 1919122836020.5286 }, "end": { "local": "2030-10-26T02:11:10+03:00", "utc": "2030-10-25T23:11:10Z", "ms": 1919200270004.3486 } }, "kaala": "nishita", "days": [ { "local_date": "2030-10-24", "window": { "start": { "local": "2030-10-25T00:15:31+03:00", "utc": "2030-10-24T21:15:31Z", "ms": 1919106931094.2969 }, "end": { "local": "2030-10-25T01:03:31+03:00", "utc": "2030-10-24T22:03:31Z", "ms": 1919109811094.2969 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-10-25", "window": { "start": { "local": "2030-10-26T00:15:24+03:00", "utc": "2030-10-25T21:15:24Z", "ms": 1919193324236.9258 }, "end": { "local": "2030-10-26T01:03:24+03:00", "utc": "2030-10-25T22:03:24Z", "ms": 1919196204236.9258 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:41 on Fri 25 Oct to 02:11 on Sat 26 Oct.", "fact": "2030-10-25T01:40:36Z → 2030-10-25T23:11:10Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:16–01:04 on the 24th, 00:15–01:03 on the 25th.", "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 24th and 48 of 48 on the 25th.", "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 4066 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Friday 25 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": "2030-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-25", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Friday 25 October. Caturdaśī runs from 04:41 on Fri 25 Oct to 02:11 on Sat 26 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-10-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12052, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2030-10-26T02:11:10+03:00", "utc": "2030-10-25T23:11:10Z", "ms": 1919200270004.3486 }, "end": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-26T02:11:10+03:00", "utc": "2030-10-25T23:11:10Z", "ms": 1919200270004.3486 }, "end": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-10-25", "window": { "start": { "local": "2030-10-25T18:14:06+03:00", "utc": "2030-10-25T15:14:06Z", "ms": 1919171646263.109 }, "end": { "local": "2030-10-25T19:56:51+03:00", "utc": "2030-10-25T16:56:51Z", "ms": 1919177811056.1267 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "2030-10-26", "window": { "start": { "local": "2030-10-26T18:13:10+03:00", "utc": "2030-10-26T15:13:10Z", "ms": 1919257990371.2688 }, "end": { "local": "2030-10-26T19:56:08+03:00", "utc": "2030-10-26T16:56:08Z", "ms": 1919264168434.3735 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 02:11 on Sat 26 Oct to 23:17 on Sat 26 Oct.", "fact": "2030-10-25T23:11:10Z → 2030-10-26T20:17:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:14–19:57 on the 25th, 18:13–19:56 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 0 of 103 minutes on the 25th and 103 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 12052 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Giza, 2030: Saturday 26 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": "2030-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-26", "confidence": "determinate" } ], "quote": "In Giza, Lakṣmī Pūjā (Diwali) 2030 falls on Saturday 26 October. Amāvasyā runs from 02:11 on Sat 26 Oct to 23:17 on Sat 26 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25488, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 }, "end": { "local": "2030-10-27T20:07:39+03:00", "utc": "2030-10-27T17:07:39Z", "ms": 1919351258556.6055 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 }, "end": { "local": "2030-10-27T20:07:39+03:00", "utc": "2030-10-27T17:07:39Z", "ms": 1919351258556.6055 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-10-26", "window": { "start": { "local": "2030-10-26T12:14:56+03:00", "utc": "2030-10-26T09:14:56Z", "ms": 1919236496291.0059 }, "end": { "local": "2030-10-26T13:02:56+03:00", "utc": "2030-10-26T10:02:56Z", "ms": 1919239376291.0059 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-10-27", "window": { "start": { "local": "2030-10-27T12:14:51+03:00", "utc": "2030-10-27T09:14:51Z", "ms": 1919322890694.981 }, "end": { "local": "2030-10-27T13:02:51+03:00", "utc": "2030-10-27T10:02:51Z", "ms": 1919325770694.981 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:17 on Sat 26 Oct to 20:08 on Sun 27 Oct.", "fact": "2030-10-26T20:17:01Z → 2030-10-27T17:07:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 26th, 12:15–13:03 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 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 25488 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Giza, 2030: Sunday 27 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govardhana-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-27", "confidence": "determinate" } ], "quote": "In Giza, Govardhana Pūjā 2030 falls on Sunday 27 October. Pratipadā runs from 23:17 on Sat 26 Oct to 20:08 on Sun 27 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 732, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 }, "end": { "local": "2030-10-27T20:07:39+03:00", "utc": "2030-10-27T17:07:39Z", "ms": 1919351258556.6055 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 }, "end": { "local": "2030-10-27T20:07:39+03:00", "utc": "2030-10-27T17:07:39Z", "ms": 1919351258556.6055 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-10-26", "window": { "start": { "local": "2030-10-26T18:13:10+03:00", "utc": "2030-10-26T15:13:10Z", "ms": 1919257990371.2688 }, "end": { "local": "2030-10-26T19:56:08+03:00", "utc": "2030-10-26T16:56:08Z", "ms": 1919264168434.3735 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "2030-10-27", "window": { "start": { "local": "2030-10-27T18:12:16+03:00", "utc": "2030-10-27T15:12:16Z", "ms": 1919344335545.4067 }, "end": { "local": "2030-10-27T19:55:27+03:00", "utc": "2030-10-27T16:55:27Z", "ms": 1919350526790.6064 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:17 on Sat 26 Oct to 20:08 on Sun 27 Oct.", "fact": "2030-10-26T20:17:01Z → 2030-10-27T17:07:39Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:13–19:56 on the 26th, 18:12–19:55 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 0 of 103 minutes on the 26th and 103 of 103 on the 27th.", "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 732 s" }, { "step": "ruling", "text": "Bali Pūjā, Giza, 2030: Sunday 27 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": "2030-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-27", "confidence": "determinate" } ], "quote": "In Giza, Bali Pūjā 2030 falls on Sunday 27 October. Pratipadā runs from 23:17 on Sat 26 Oct to 20:08 on Sun 27 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28105, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 }, "end": { "local": "2030-10-27T20:07:39+03:00", "utc": "2030-10-27T17:07:39Z", "ms": 1919351258556.6055 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-26T23:17:01+03:00", "utc": "2030-10-26T20:17:01Z", "ms": 1919276220562.5613 }, "end": { "local": "2030-10-27T20:07:39+03:00", "utc": "2030-10-27T17:07:39Z", "ms": 1919351258556.6055 } }, "kaala": "purvahna", "days": [ { "local_date": "2030-10-27", "window": { "start": { "local": "2030-10-27T07:05:26+03:00", "utc": "2030-10-27T04:05:26Z", "ms": 1919304325844.555 }, "end": { "local": "2030-10-27T10:47:42+03:00", "utc": "2030-10-27T07:47:42Z", "ms": 1919317662411.5056 } }, "covered_min": 222, "window_min": 222, "qualifies": true }, { "local_date": "2030-10-28", "window": { "start": { "local": "2030-10-28T07:06:10+03:00", "utc": "2030-10-28T04:06:10Z", "ms": 1919390769884.4045 }, "end": { "local": "2030-10-28T10:47:54+03:00", "utc": "2030-10-28T07:47:54Z", "ms": 1919404073859.1858 } }, "covered_min": 0, "window_min": 222, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:17 on Sat 26 Oct to 20:08 on Sun 27 Oct.", "fact": "2030-10-26T20:17:01Z → 2030-10-27T17:07:39Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:05–10:48 on the 27th, 07:06–10:48 on the 28th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 222 of 222 minutes on the 27th and 0 of 222 on the 28th.", "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 28105 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Giza, 2030: Sunday 27 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": "2030-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-27", "confidence": "determinate" } ], "quote": "In Giza, Dyūta Pratipad 2030 falls on Sunday 27 October. Pratipadā runs from 23:17 on Sat 26 Oct to 20:08 on Sun 27 Oct and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13780, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2030-10-27T20:07:39+03:00", "utc": "2030-10-27T17:07:39Z", "ms": 1919351258556.6055 }, "end": { "local": "2030-10-28T16:52:26+03:00", "utc": "2030-10-28T13:52:26Z", "ms": 1919425946181.55 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-27T20:07:39+03:00", "utc": "2030-10-27T17:07:39Z", "ms": 1919351258556.6055 }, "end": { "local": "2030-10-28T16:52:26+03:00", "utc": "2030-10-28T13:52:26Z", "ms": 1919425946181.55 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-10-27", "window": { "start": { "local": "2030-10-27T12:14:51+03:00", "utc": "2030-10-27T09:14:51Z", "ms": 1919322890694.981 }, "end": { "local": "2030-10-27T13:02:51+03:00", "utc": "2030-10-27T10:02:51Z", "ms": 1919325770694.981 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-10-28", "window": { "start": { "local": "2030-10-28T12:14:46+03:00", "utc": "2030-10-28T09:14:46Z", "ms": 1919409285846.5762 }, "end": { "local": "2030-10-28T13:02:46+03:00", "utc": "2030-10-28T10:02:46Z", "ms": 1919412165846.5762 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 20:08 on Sun 27 Oct to 16:52 on Mon 28 Oct.", "fact": "2030-10-27T17:07:39Z → 2030-10-28T13:52:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 27th, 12:15–13:03 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13780 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Giza, 2030: Monday 28 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dvitiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-28", "confidence": "determinate" } ], "quote": "In Giza, Yama Dvitīyā (Bhai Dooj) 2030 falls on Monday 28 October. Dvitīyā runs from 20:08 on Sun 27 Oct to 16:52 on Mon 28 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2250, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-10-29T13:40:12+03:00", "utc": "2030-10-29T10:40:12Z", "ms": 1919500811963.9653 }, "end": { "local": "2030-10-30T10:38:52+03:00", "utc": "2030-10-30T07:38:52Z", "ms": 1919576331766.549 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-29T13:40:12+03:00", "utc": "2030-10-29T10:40:12Z", "ms": 1919500811963.9653 }, "end": { "local": "2030-10-30T10:38:52+03:00", "utc": "2030-10-30T07:38:52Z", "ms": 1919576331766.549 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-10-29", "window": { "start": { "local": "2030-10-29T12:14:42+03:00", "utc": "2030-10-29T09:14:42Z", "ms": 1919495681752.4204 }, "end": { "local": "2030-10-29T13:02:42+03:00", "utc": "2030-10-29T10:02:42Z", "ms": 1919498561752.4204 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-10-30", "window": { "start": { "local": "2030-10-30T12:14:38+03:00", "utc": "2030-10-30T09:14:38Z", "ms": 1919582078418.96 }, "end": { "local": "2030-10-30T13:02:38+03:00", "utc": "2030-10-30T10:02:38Z", "ms": 1919584958418.96 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:40 on Tue 29 Oct to 10:39 on Wed 30 Oct.", "fact": "2030-10-29T10:40:12Z → 2030-10-30T07:38:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 29th, 12:15–13:03 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 2250 s" }, { "step": "ruling", "text": "Nāga Caturthī, Giza, 2030: Wednesday 30 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": "2030-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-29", "confidence": "boundary" } ], "quote": "In Giza, Nāga Caturthī 2030 falls on Wednesday 30 October. Caturthī runs from 13:40 on Tue 29 Oct to 10:39 on Wed 30 Oct, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-10-30", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2250, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-10-29T13:40:12+03:00", "utc": "2030-10-29T10:40:12Z", "ms": 1919500811963.9653 }, "end": { "local": "2030-10-30T10:38:52+03:00", "utc": "2030-10-30T07:38:52Z", "ms": 1919576331766.549 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-29T13:40:12+03:00", "utc": "2030-10-29T10:40:12Z", "ms": 1919500811963.9653 }, "end": { "local": "2030-10-30T10:38:52+03:00", "utc": "2030-10-30T07:38:52Z", "ms": 1919576331766.549 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-10-29", "window": { "start": { "local": "2030-10-29T12:14:42+03:00", "utc": "2030-10-29T09:14:42Z", "ms": 1919495681752.4204 }, "end": { "local": "2030-10-29T13:02:42+03:00", "utc": "2030-10-29T10:02:42Z", "ms": 1919498561752.4204 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-10-30", "window": { "start": { "local": "2030-10-30T12:14:38+03:00", "utc": "2030-10-30T09:14:38Z", "ms": 1919582078418.96 }, "end": { "local": "2030-10-30T13:02:38+03:00", "utc": "2030-10-30T10:02:38Z", "ms": 1919584958418.96 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:40 on Tue 29 Oct to 10:39 on Wed 30 Oct.", "fact": "2030-10-29T10:40:12Z → 2030-10-30T07:38:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 29th, 12:15–13:03 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: unstated → second-day · margin 2250 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Wednesday 30 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": "2030-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-29", "confidence": "boundary" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Wednesday 30 October. Caturthī runs from 13:40 on Tue 29 Oct to 10:39 on Wed 30 Oct, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-10-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15562, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2030-10-31T07:55:14+03:00", "utc": "2030-10-31T04:55:14Z", "ms": 1919652913745.9785 }, "end": { "local": "2030-11-01T04:34:47+02:00", "utc": "2030-11-01T02:34:47Z", "ms": 1919730886784.1934 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-10-31T07:55:14+03:00", "utc": "2030-10-31T04:55:14Z", "ms": 1919652913745.9785 }, "end": { "local": "2030-11-01T04:34:47+02:00", "utc": "2030-11-01T02:34:47Z", "ms": 1919730886784.1934 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-10-31", "window": { "start": { "local": "2030-10-31T12:14:36+03:00", "utc": "2030-10-31T09:14:36Z", "ms": 1919668475852.9238 }, "end": { "local": "2030-10-31T13:02:36+03:00", "utc": "2030-10-31T10:02:36Z", "ms": 1919671355852.9238 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-11-01", "window": { "start": { "local": "2030-11-01T11:14:34+02:00", "utc": "2030-11-01T09:14:34Z", "ms": 1919754874061.6047 }, "end": { "local": "2030-11-01T12:02:34+02:00", "utc": "2030-11-01T10:02:34Z", "ms": 1919757754061.6047 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 07:55 on Thu 31 Oct to 04:35 on Fri 1 Nov.", "fact": "2030-10-31T04:55:14Z → 2030-11-01T02:34:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 31st, 11:15–12:03 on the 1st.", "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 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15562 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Giza, 2030: Thursday 31 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": "2030-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-10-31", "confidence": "determinate" } ], "quote": "In Giza, Sūrya Ṣaṣṭhī (Chhath) 2030 falls on Thursday 31 October. Ṣaṣṭhī runs from 07:55 on Thu 31 Oct to 04:35 on Fri 1 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30780, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2030-11-02T02:41:33+02:00", "utc": "2030-11-02T00:41:33Z", "ms": 1919810493384.6982 }, "end": { "local": "2030-11-03T01:18:09+02:00", "utc": "2030-11-02T23:18:09Z", "ms": 1919891888838.7341 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-11-02T02:41:33+02:00", "utc": "2030-11-02T00:41:33Z", "ms": 1919810493384.6982 }, "end": { "local": "2030-11-03T01:18:09+02:00", "utc": "2030-11-02T23:18:09Z", "ms": 1919891888838.7341 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-11-02", "window": { "start": { "local": "2030-11-02T11:14:33+02:00", "utc": "2030-11-02T09:14:33Z", "ms": 1919841273052.9326 }, "end": { "local": "2030-11-02T12:02:33+02:00", "utc": "2030-11-02T10:02:33Z", "ms": 1919844153052.9326 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-11-03", "window": { "start": { "local": "2030-11-03T11:14:33+02:00", "utc": "2030-11-03T09:14:33Z", "ms": 1919927672835.3718 }, "end": { "local": "2030-11-03T12:02:33+02:00", "utc": "2030-11-03T10:02:33Z", "ms": 1919930552835.3718 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 02:42 on Sat 2 Nov to 01:18 on Sun 3 Nov.", "fact": "2030-11-02T00:41:33Z → 2030-11-02T23:18:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 2nd, 11:15–12:03 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: unstated → only-day · margin 30780 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Giza, 2030: Saturday 2 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": "2030-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-02", "confidence": "determinate" } ], "quote": "In Giza, Gopāṣṭamī 2030 falls on Saturday 2 November. Aṣṭamī runs from 02:42 on Sat 2 Nov to 01:18 on Sun 3 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17553, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2030-11-03T01:18:09+02:00", "utc": "2030-11-02T23:18:09Z", "ms": 1919891888838.7341 }, "end": { "local": "2030-11-04T00:25:48+02:00", "utc": "2030-11-03T22:25:48Z", "ms": 1919975148103.4402 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-11-03T01:18:09+02:00", "utc": "2030-11-02T23:18:09Z", "ms": 1919891888838.7341 }, "end": { "local": "2030-11-04T00:25:48+02:00", "utc": "2030-11-03T22:25:48Z", "ms": 1919975148103.4402 } }, "kaala": "purvahna", "days": [ { "local_date": "2030-11-03", "window": { "start": { "local": "2030-11-03T06:10:42+02:00", "utc": "2030-11-03T04:10:42Z", "ms": 1919909442065.3145 }, "end": { "local": "2030-11-03T09:49:16+02:00", "utc": "2030-11-03T07:49:16Z", "ms": 1919922555912.0193 } }, "covered_min": 219, "window_min": 219, "qualifies": true }, { "local_date": "2030-11-04", "window": { "start": { "local": "2030-11-04T06:11:29+02:00", "utc": "2030-11-04T04:11:29Z", "ms": 1919995888655.4197 }, "end": { "local": "2030-11-04T09:49:32+02:00", "utc": "2030-11-04T07:49:32Z", "ms": 1920008971830.2886 } }, "covered_min": 0, "window_min": 218, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 01:18 on Sun 3 Nov to 00:26 on Mon 4 Nov.", "fact": "2030-11-02T23:18:09Z → 2030-11-03T22:25:48Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:11–09:49 on the 3rd, 06:11–09:50 on the 4th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 219 of 219 minutes on the 3rd and 0 of 218 on the 4th.", "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 17553 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Giza, 2030: Sunday 3 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": "2030-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-03", "confidence": "determinate" } ], "quote": "In Giza, Akṣaya Navamī (Amla Navami) 2030 falls on Sunday 3 November. Navamī runs from 01:18 on Sun 3 Nov to 00:26 on Mon 4 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35784, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2030-11-03T01:18:09+02:00", "utc": "2030-11-02T23:18:09Z", "ms": 1919891888838.7341 }, "end": { "local": "2030-11-04T00:25:48+02:00", "utc": "2030-11-03T22:25:48Z", "ms": 1919975148103.4402 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-11-03T01:18:09+02:00", "utc": "2030-11-02T23:18:09Z", "ms": 1919891888838.7341 }, "end": { "local": "2030-11-04T00:25:48+02:00", "utc": "2030-11-03T22:25:48Z", "ms": 1919975148103.4402 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-11-03", "window": { "start": { "local": "2030-11-03T11:14:33+02:00", "utc": "2030-11-03T09:14:33Z", "ms": 1919927672835.3718 }, "end": { "local": "2030-11-03T12:02:33+02:00", "utc": "2030-11-03T10:02:33Z", "ms": 1919930552835.3718 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-11-04", "window": { "start": { "local": "2030-11-04T11:14:33+02:00", "utc": "2030-11-04T09:14:33Z", "ms": 1920014073417.7231 }, "end": { "local": "2030-11-04T12:02:33+02:00", "utc": "2030-11-04T10:02:33Z", "ms": 1920016953417.7231 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 01:18 on Sun 3 Nov to 00:26 on Mon 4 Nov.", "fact": "2030-11-02T23:18:09Z → 2030-11-03T22:25:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 3rd, 11:15–12:03 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 35784 s" }, { "step": "ruling", "text": "Durgā Navamī, Giza, 2030: Sunday 3 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": "2030-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-03", "confidence": "determinate" } ], "quote": "In Giza, Durgā Navamī 2030 falls on Sunday 3 November. Navamī runs from 01:18 on Sun 3 Nov to 00:26 on Mon 4 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-11-05", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21536, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-11-05T00:04:40+02:00", "utc": "2030-11-04T22:04:40Z", "ms": 1920060280106.3464 }, "end": { "local": "2030-11-06T00:14:07+02:00", "utc": "2030-11-05T22:14:07Z", "ms": 1920147246574.095 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-11-05T00:04:40+02:00", "utc": "2030-11-04T22:04:40Z", "ms": 1920060280106.3464 }, "end": { "local": "2030-11-06T00:14:07+02:00", "utc": "2030-11-05T22:14:07Z", "ms": 1920147246574.095 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-11-05", "window": { "start": { "local": "2030-11-05T06:12:16+02:00", "utc": "2030-11-05T04:12:16Z", "ms": 1920082335570.0312 }, "end": { "local": "2030-11-05T06:12:16+02:00", "utc": "2030-11-05T04:12:16Z", "ms": 1920082335570.0312 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-11-06", "window": { "start": { "local": "2030-11-06T06:13:03+02:00", "utc": "2030-11-06T04:13:03Z", "ms": 1920168782799.325 }, "end": { "local": "2030-11-06T06:13:03+02:00", "utc": "2030-11-06T04:13:03Z", "ms": 1920168782799.325 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:05 on Tue 5 Nov to 00:14 on Wed 6 Nov.", "fact": "2030-11-04T22:04:40Z → 2030-11-05T22:14:07Z" }, { "step": "kaala", "text": "Sunrise is at 06:12 on the 5th and 06:13 on the 6th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 5th and is not on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21536 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Giza, 2030: Tuesday 5 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": "2030-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-05", "confidence": "determinate" } ], "quote": "In Giza, Prabodhinī Ekādaśī 2030 falls on Tuesday 5 November. Ekādaśī runs from 00:05 on Tue 5 Nov to 00:14 on Wed 6 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-11-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-11-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21812, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-11-07T00:53:00+02:00", "utc": "2030-11-06T22:53:00Z", "ms": 1920235980103.446 }, "end": { "local": "2030-11-08T01:59:55+02:00", "utc": "2030-11-07T23:59:55Z", "ms": 1920326395270.1372 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-11-07T00:53:00+02:00", "utc": "2030-11-06T22:53:00Z", "ms": 1920235980103.446 }, "end": { "local": "2030-11-08T01:59:55+02:00", "utc": "2030-11-07T23:59:55Z", "ms": 1920326395270.1372 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-11-06", "window": { "start": { "local": "2030-11-06T17:04:11+02:00", "utc": "2030-11-06T15:04:11Z", "ms": 1920207851235.9753 }, "end": { "local": "2030-11-06T18:49:28+02:00", "utc": "2030-11-06T16:49:28Z", "ms": 1920214168448.8965 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "2030-11-07", "window": { "start": { "local": "2030-11-07T17:03:30+02:00", "utc": "2030-11-07T15:03:30Z", "ms": 1920294209772.0261 }, "end": { "local": "2030-11-07T18:48:59+02:00", "utc": "2030-11-07T16:48:59Z", "ms": 1920300538890.3503 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:53 on Thu 7 Nov to 02:00 on Fri 8 Nov.", "fact": "2030-11-06T22:53:00Z → 2030-11-07T23:59:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:04–18:49 on the 6th, 17:03–18:49 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 105 minutes on the 6th and 105 of 105 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21812 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Thursday 7 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": "2030-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-07", "confidence": "determinate" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Thursday 7 November. Trayodaśī runs from 00:53 on Thu 7 Nov to 02:00 on Fri 8 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20675, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-11-09T03:33:08+02:00", "utc": "2030-11-09T01:33:08Z", "ms": 1920418387707.4968 }, "end": { "local": "2030-11-10T05:30:19+02:00", "utc": "2030-11-10T03:30:19Z", "ms": 1920511819032.5125 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-11-09T03:33:08+02:00", "utc": "2030-11-09T01:33:08Z", "ms": 1920418387707.4968 }, "end": { "local": "2030-11-10T05:30:19+02:00", "utc": "2030-11-10T03:30:19Z", "ms": 1920511819032.5125 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-11-09", "window": { "start": { "local": "2030-11-09T11:14:49+02:00", "utc": "2030-11-09T09:14:49Z", "ms": 1920446088631.2715 }, "end": { "local": "2030-11-09T12:02:49+02:00", "utc": "2030-11-09T10:02:49Z", "ms": 1920448968631.2715 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-11-10", "window": { "start": { "local": "2030-11-10T11:14:54+02:00", "utc": "2030-11-10T09:14:54Z", "ms": 1920532494188.9736 }, "end": { "local": "2030-11-10T12:02:54+02:00", "utc": "2030-11-10T10:02:54Z", "ms": 1920535374188.9736 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:33 on Sat 9 Nov to 05:30 on Sun 10 Nov.", "fact": "2030-11-09T01:33:08Z → 2030-11-10T03:30:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 9th, 11:15–12:03 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20675 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Giza, 2030: Saturday 9 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": "2030-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-09", "confidence": "determinate" } ], "quote": "In Giza, Kārtikī Pūrṇimā 2030 falls on Saturday 9 November. Pūrṇimā runs from 03:33 on Sat 9 Nov to 05:30 on Sun 10 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12600, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-11-09T03:33:08+02:00", "utc": "2030-11-09T01:33:08Z", "ms": 1920418387707.4968 }, "end": { "local": "2030-11-10T05:30:19+02:00", "utc": "2030-11-10T03:30:19Z", "ms": 1920511819032.5125 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2030-11-09T03:33:08+02:00", "utc": "2030-11-09T01:33:08Z", "ms": 1920418387707.4968 }, "end": { "local": "2030-11-10T05:30:19+02:00", "utc": "2030-11-10T03:30:19Z", "ms": 1920511819032.5125 } }, "kaala": "nishita", "days": [ { "local_date": "2030-11-08", "window": { "start": { "local": "2030-11-08T23:15:08+02:00", "utc": "2030-11-08T21:15:08Z", "ms": 1920402907974.8794 }, "end": { "local": "2030-11-09T00:03:08+02:00", "utc": "2030-11-08T22:03:08Z", "ms": 1920405787974.8794 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-11-09", "window": { "start": { "local": "2030-11-09T23:15:13+02:00", "utc": "2030-11-09T21:15:13Z", "ms": 1920489312818.4756 }, "end": { "local": "2030-11-10T00:03:13+02:00", "utc": "2030-11-09T22:03:13Z", "ms": 1920492192818.4756 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:33 on Sat 9 Nov to 05:30 on Sun 10 Nov.", "fact": "2030-11-09T01:33:08Z → 2030-11-10T03:30:19Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:15–00:03 on the 8th, 23:15–00:03 on the 9th.", "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 8th and 48 of 48 on the 9th.", "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 12600 s" }, { "step": "ruling", "text": "Rāsayātrā, Giza, 2030: Saturday 9 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": "2030-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-09", "confidence": "determinate" } ], "quote": "In Giza, Rāsayātrā 2030 falls on Saturday 9 November. Pūrṇimā runs from 03:33 on Sat 9 Nov to 05:30 on Sun 10 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-11-13", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16822, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-11-13T13:04:11+02:00", "utc": "2030-11-13T11:04:11Z", "ms": 1920798251205.8655 }, "end": { "local": "2030-11-14T15:46:22+02:00", "utc": "2030-11-14T13:46:22Z", "ms": 1920894381512.6538 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-13T13:04:11+02:00", "utc": "2030-11-13T11:04:11Z", "ms": 1920798251205.8655 }, "end": { "local": "2030-11-14T15:46:22+02:00", "utc": "2030-11-14T13:46:22Z", "ms": 1920894381512.6538 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-11-13", "window": { "start": { "local": "2030-11-13T19:34:40+02:00", "utc": "2030-11-13T17:34:40Z", "ms": 1920821679625.8367 }, "end": { "local": "2030-11-13T19:34:40+02:00", "utc": "2030-11-13T17:34:40Z", "ms": 1920821679625.8367 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-11-14", "window": { "start": { "local": "2030-11-14T20:26:44+02:00", "utc": "2030-11-14T18:26:44Z", "ms": 1920911203575.9502 }, "end": { "local": "2030-11-14T20:26:44+02:00", "utc": "2030-11-14T18:26:44Z", "ms": 1920911203575.9502 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:04 on Wed 13 Nov to 15:46 on Thu 14 Nov.", "fact": "2030-11-13T11:04:11Z → 2030-11-14T13:46:22Z" }, { "step": "kaala", "text": "Moonrise is at 19:35 on the 13th and 20:27 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 16822 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Wednesday 13 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": "2030-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-13", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Wednesday 13 November. Caturthī runs from 13:04 on Wed 13 Nov to 15:46 on Thu 14 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-11-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-11-21", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29570, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-11-20T22:12:29+02:00", "utc": "2030-11-20T20:12:29Z", "ms": 1921435948811.7637 }, "end": { "local": "2030-11-21T20:40:12+02:00", "utc": "2030-11-21T18:40:12Z", "ms": 1921516812333.6243 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-20T22:12:29+02:00", "utc": "2030-11-20T20:12:29Z", "ms": 1921435948811.7637 }, "end": { "local": "2030-11-21T20:40:12+02:00", "utc": "2030-11-21T18:40:12Z", "ms": 1921516812333.6243 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-11-21", "window": { "start": { "local": "2030-11-21T06:25:19+02:00", "utc": "2030-11-21T04:25:19Z", "ms": 1921465518955.8838 }, "end": { "local": "2030-11-21T06:25:19+02:00", "utc": "2030-11-21T04:25:19Z", "ms": 1921465518955.8838 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-11-22", "window": { "start": { "local": "2030-11-22T06:26:09+02:00", "utc": "2030-11-22T04:26:09Z", "ms": 1921551968900.0908 }, "end": { "local": "2030-11-22T06:26:09+02:00", "utc": "2030-11-22T04:26:09Z", "ms": 1921551968900.0908 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:12 on Wed 20 Nov to 20:40 on Thu 21 Nov.", "fact": "2030-11-20T20:12:29Z → 2030-11-21T18:40:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:25 on the 21st and 06:26 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 29570 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Giza, 2030: Thursday 21 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": "2030-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-21", "confidence": "determinate" } ], "quote": "In Giza, Utpannā Ekādaśī 2030 falls on Thursday 21 November. Ekādaśī runs from 22:12 on Wed 20 Nov to 20:40 on Thu 21 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-11-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-11-22", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1121, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-11-22T18:25:33+02:00", "utc": "2030-11-22T16:25:33Z", "ms": 1921595132785.2734 }, "end": { "local": "2030-11-23T15:35:45+02:00", "utc": "2030-11-23T13:35:45Z", "ms": 1921671345181.974 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-22T18:25:33+02:00", "utc": "2030-11-22T16:25:33Z", "ms": 1921595132785.2734 }, "end": { "local": "2030-11-23T15:35:45+02:00", "utc": "2030-11-23T13:35:45Z", "ms": 1921671345181.974 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-11-22", "window": { "start": { "local": "2030-11-22T16:56:07+02:00", "utc": "2030-11-22T14:56:07Z", "ms": 1921589766628.5293 }, "end": { "local": "2030-11-22T18:44:14+02:00", "utc": "2030-11-22T16:44:14Z", "ms": 1921596253582.783 } }, "covered_min": 19, "window_min": 108, "qualifies": true }, { "local_date": "2030-11-23", "window": { "start": { "local": "2030-11-23T16:55:50+02:00", "utc": "2030-11-23T14:55:50Z", "ms": 1921676149954.6243 }, "end": { "local": "2030-11-23T18:44:06+02:00", "utc": "2030-11-23T16:44:06Z", "ms": 1921682645770.4373 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:26 on Fri 22 Nov to 15:36 on Sat 23 Nov.", "fact": "2030-11-22T16:25:33Z → 2030-11-23T13:35:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:56–18:44 on the 22nd, 16:56–18:44 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 19 of 108 minutes on the 22nd and 0 of 108 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 1121 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Friday 22 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": "2030-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-22", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Friday 22 November. Trayodaśī runs from 18:26 on Fri 22 Nov to 15:36 on Sat 23 Nov and covers 19 of 108 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-11-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-11-23", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27724, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-11-23T15:35:45+02:00", "utc": "2030-11-23T13:35:45Z", "ms": 1921671345181.974 }, "end": { "local": "2030-11-24T12:19:33+02:00", "utc": "2030-11-24T10:19:33Z", "ms": 1921745972865.529 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-23T15:35:45+02:00", "utc": "2030-11-23T13:35:45Z", "ms": 1921671345181.974 }, "end": { "local": "2030-11-24T12:19:33+02:00", "utc": "2030-11-24T10:19:33Z", "ms": 1921745972865.529 } }, "kaala": "nishita", "days": [ { "local_date": "2030-11-23", "window": { "start": { "local": "2030-11-23T23:17:49+02:00", "utc": "2030-11-23T21:17:49Z", "ms": 1921699069263.9233 }, "end": { "local": "2030-11-24T00:05:49+02:00", "utc": "2030-11-23T22:05:49Z", "ms": 1921701949263.9233 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-11-24", "window": { "start": { "local": "2030-11-24T23:18:07+02:00", "utc": "2030-11-24T21:18:07Z", "ms": 1921785486595.5103 }, "end": { "local": "2030-11-25T00:06:07+02:00", "utc": "2030-11-24T22:06:07Z", "ms": 1921788366595.5103 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:36 on Sat 23 Nov to 12:20 on Sun 24 Nov.", "fact": "2030-11-23T13:35:45Z → 2030-11-24T10:19:33Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:18–00:06 on the 23rd, 23:18–00:06 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 27724 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Saturday 23 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": "2030-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-23", "confidence": "determinate" } ], "quote": "In Giza, Śivarātri 2030 falls on Saturday 23 November. Caturdaśī runs from 15:36 on Sat 23 Nov to 12:20 on Sun 24 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-11-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-11-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24961, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-11-27T22:05:28+02:00", "utc": "2030-11-27T20:05:28Z", "ms": 1922040327995.2598 }, "end": { "local": "2030-11-28T19:02:59+02:00", "utc": "2030-11-28T17:02:59Z", "ms": 1922115779455.8088 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-27T22:05:28+02:00", "utc": "2030-11-27T20:05:28Z", "ms": 1922040327995.2598 }, "end": { "local": "2030-11-28T19:02:59+02:00", "utc": "2030-11-28T17:02:59Z", "ms": 1922115779455.8088 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-11-27", "window": { "start": { "local": "2030-11-27T11:18:39+02:00", "utc": "2030-11-27T09:18:39Z", "ms": 1922001518549.571 }, "end": { "local": "2030-11-27T12:06:39+02:00", "utc": "2030-11-27T10:06:39Z", "ms": 1922004398549.571 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-11-28", "window": { "start": { "local": "2030-11-28T11:18:59+02:00", "utc": "2030-11-28T09:18:59Z", "ms": 1922087938929.047 }, "end": { "local": "2030-11-28T12:06:59+02:00", "utc": "2030-11-28T10:06:59Z", "ms": 1922090818929.047 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:05 on Wed 27 Nov to 19:03 on Thu 28 Nov.", "fact": "2030-11-27T20:05:28Z → 2030-11-28T17:02:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 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": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24961 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Thursday 28 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": "2030-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-28", "confidence": "determinate" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Thursday 28 November. Caturthī runs from 22:05 on Wed 27 Nov to 19:03 on Thu 28 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-11-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15775, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2030-11-28T19:02:59+02:00", "utc": "2030-11-28T17:02:59Z", "ms": 1922115779455.8088 }, "end": { "local": "2030-11-29T16:30:15+02:00", "utc": "2030-11-29T14:30:15Z", "ms": 1922193015347.5986 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-28T19:02:59+02:00", "utc": "2030-11-28T17:02:59Z", "ms": 1922115779455.8088 }, "end": { "local": "2030-11-29T16:30:15+02:00", "utc": "2030-11-29T14:30:15Z", "ms": 1922193015347.5986 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-11-28", "window": { "start": { "local": "2030-11-28T11:18:59+02:00", "utc": "2030-11-28T09:18:59Z", "ms": 1922087938929.047 }, "end": { "local": "2030-11-28T12:06:59+02:00", "utc": "2030-11-28T10:06:59Z", "ms": 1922090818929.047 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-11-29", "window": { "start": { "local": "2030-11-29T11:19:20+02:00", "utc": "2030-11-29T09:19:20Z", "ms": 1922174359997.9438 }, "end": { "local": "2030-11-29T12:07:20+02:00", "utc": "2030-11-29T10:07:20Z", "ms": 1922177239997.9438 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 19:03 on Thu 28 Nov to 16:30 on Fri 29 Nov.", "fact": "2030-11-28T17:02:59Z → 2030-11-29T14:30:15Z" }, { "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": "Pañcamī 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15775 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Giza, 2030: Friday 29 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": "2030-11-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-29", "confidence": "determinate" } ], "quote": "In Giza, Nāga Pañcamī (Mārgaśīrṣa) 2030 falls on Friday 29 November. Pañcamī runs from 19:03 on Thu 28 Nov to 16:30 on Fri 29 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8769, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2030-11-29T16:30:15+02:00", "utc": "2030-11-29T14:30:15Z", "ms": 1922193015347.5986 }, "end": { "local": "2030-11-30T14:33:50+02:00", "utc": "2030-11-30T12:33:50Z", "ms": 1922272430475.8596 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-29T16:30:15+02:00", "utc": "2030-11-29T14:30:15Z", "ms": 1922193015347.5986 }, "end": { "local": "2030-11-30T14:33:50+02:00", "utc": "2030-11-30T12:33:50Z", "ms": 1922272430475.8596 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-11-29", "window": { "start": { "local": "2030-11-29T11:19:20+02:00", "utc": "2030-11-29T09:19:20Z", "ms": 1922174359997.9438 }, "end": { "local": "2030-11-29T12:07:20+02:00", "utc": "2030-11-29T10:07:20Z", "ms": 1922177239997.9438 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-11-30", "window": { "start": { "local": "2030-11-30T11:19:42+02:00", "utc": "2030-11-30T09:19:42Z", "ms": 1922260781734.2546 }, "end": { "local": "2030-11-30T12:07:42+02:00", "utc": "2030-11-30T10:07:42Z", "ms": 1922263661734.2546 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 16:30 on Fri 29 Nov to 14:34 on Sat 30 Nov.", "fact": "2030-11-29T14:30:15Z → 2030-11-30T12:33:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 29th, 11:20–12:08 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: paraviddha → only-day · margin 8769 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Giza, 2030: Saturday 30 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": "2030-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-30", "confidence": "determinate" } ], "quote": "In Giza, Campā Ṣaṣṭhī 2030 falls on Saturday 30 November. Ṣaṣṭhī runs from 16:30 on Fri 29 Nov to 14:34 on Sat 30 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8769, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2030-11-29T16:30:15+02:00", "utc": "2030-11-29T14:30:15Z", "ms": 1922193015347.5986 }, "end": { "local": "2030-11-30T14:33:50+02:00", "utc": "2030-11-30T12:33:50Z", "ms": 1922272430475.8596 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-29T16:30:15+02:00", "utc": "2030-11-29T14:30:15Z", "ms": 1922193015347.5986 }, "end": { "local": "2030-11-30T14:33:50+02:00", "utc": "2030-11-30T12:33:50Z", "ms": 1922272430475.8596 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-11-29", "window": { "start": { "local": "2030-11-29T11:19:20+02:00", "utc": "2030-11-29T09:19:20Z", "ms": 1922174359997.9438 }, "end": { "local": "2030-11-29T12:07:20+02:00", "utc": "2030-11-29T10:07:20Z", "ms": 1922177239997.9438 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-11-30", "window": { "start": { "local": "2030-11-30T11:19:42+02:00", "utc": "2030-11-30T09:19:42Z", "ms": 1922260781734.2546 }, "end": { "local": "2030-11-30T12:07:42+02:00", "utc": "2030-11-30T10:07:42Z", "ms": 1922263661734.2546 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 16:30 on Fri 29 Nov to 14:34 on Sat 30 Nov.", "fact": "2030-11-29T14:30:15Z → 2030-11-30T12:33:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 29th, 11:20–12:08 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: purvaviddha → only-day · margin 8769 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Giza, 2030: Saturday 30 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": "2030-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-11-30", "confidence": "determinate" } ], "quote": "In Giza, Skanda Ṣaṣṭhī 2030 falls on Saturday 30 November. Ṣaṣṭhī runs from 16:30 on Fri 29 Nov to 14:34 on Sat 30 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4221, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2030-11-30T14:33:50+02:00", "utc": "2030-11-30T12:33:50Z", "ms": 1922272430475.8596 }, "end": { "local": "2030-12-01T13:18:25+02:00", "utc": "2030-12-01T11:18:25Z", "ms": 1922354304640.0293 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-11-30T14:33:50+02:00", "utc": "2030-11-30T12:33:50Z", "ms": 1922272430475.8596 }, "end": { "local": "2030-12-01T13:18:25+02:00", "utc": "2030-12-01T11:18:25Z", "ms": 1922354304640.0293 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-11-30", "window": { "start": { "local": "2030-11-30T11:19:42+02:00", "utc": "2030-11-30T09:19:42Z", "ms": 1922260781734.2546 }, "end": { "local": "2030-11-30T12:07:42+02:00", "utc": "2030-11-30T10:07:42Z", "ms": 1922263661734.2546 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-12-01", "window": { "start": { "local": "2030-12-01T11:20:04+02:00", "utc": "2030-12-01T09:20:04Z", "ms": 1922347204116.3562 }, "end": { "local": "2030-12-01T12:08:04+02:00", "utc": "2030-12-01T10:08:04Z", "ms": 1922350084116.3562 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 14:34 on Sat 30 Nov to 13:18 on Sun 1 Dec.", "fact": "2030-11-30T12:33:50Z → 2030-12-01T11:18:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:20–12:08 on the 30th, 11:20–12:08 on the 1st.", "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 30th 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: purvaviddha → only-day · margin 4221 s" }, { "step": "ruling", "text": "Mitra Saptamī, Giza, 2030: Sunday 1 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mitra-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Mitra saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-01", "confidence": "determinate" } ], "quote": "In Giza, Mitra Saptamī 2030 falls on Sunday 1 December. Saptamī runs from 14:34 on Sat 30 Nov to 13:18 on Sun 1 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/ekadashi?on=2030-12-05", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25951, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-12-04T13:48:22+02:00", "utc": "2030-12-04T11:48:22Z", "ms": 1922615302422.391 }, "end": { "local": "2030-12-05T15:14:52+02:00", "utc": "2030-12-05T13:14:52Z", "ms": 1922706892374.7837 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-04T13:48:22+02:00", "utc": "2030-12-04T11:48:22Z", "ms": 1922615302422.391 }, "end": { "local": "2030-12-05T15:14:52+02:00", "utc": "2030-12-05T13:14:52Z", "ms": 1922706892374.7837 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-12-04", "window": { "start": { "local": "2030-12-04T06:35:52+02:00", "utc": "2030-12-04T04:35:52Z", "ms": 1922589351557.322 }, "end": { "local": "2030-12-04T06:35:52+02:00", "utc": "2030-12-04T04:35:52Z", "ms": 1922589351557.322 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-12-05", "window": { "start": { "local": "2030-12-05T06:36:37+02:00", "utc": "2030-12-05T04:36:37Z", "ms": 1922675797414.9668 }, "end": { "local": "2030-12-05T06:36:37+02:00", "utc": "2030-12-05T04:36:37Z", "ms": 1922675797414.9668 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:48 on Wed 4 Dec to 15:15 on Thu 5 Dec.", "fact": "2030-12-04T11:48:22Z → 2030-12-05T13:14:52Z" }, { "step": "kaala", "text": "Sunrise is at 06:36 on the 4th and 06:37 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 4th and is 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 25951 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Giza, 2030: Thursday 5 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": "2030-12-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-05", "confidence": "determinate" } ], "quote": "In Giza, Mokṣadā Ekādaśī 2030 falls on Thursday 5 December. Ekādaśī runs from 13:48 on Wed 4 Dec to 15:15 on Thu 5 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-12-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11113, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2030-12-05T15:14:52+02:00", "utc": "2030-12-05T13:14:52Z", "ms": 1922706892374.7837 }, "end": { "local": "2030-12-06T17:10:21+02:00", "utc": "2030-12-06T15:10:21Z", "ms": 1922800220627.858 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-05T15:14:52+02:00", "utc": "2030-12-05T13:14:52Z", "ms": 1922706892374.7837 }, "end": { "local": "2030-12-06T17:10:21+02:00", "utc": "2030-12-06T15:10:21Z", "ms": 1922800220627.858 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-12-05", "window": { "start": { "local": "2030-12-05T11:21:40+02:00", "utc": "2030-12-05T09:21:40Z", "ms": 1922692899673.1802 }, "end": { "local": "2030-12-05T12:09:40+02:00", "utc": "2030-12-05T10:09:40Z", "ms": 1922695779673.1802 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-12-06", "window": { "start": { "local": "2030-12-06T11:22:05+02:00", "utc": "2030-12-06T09:22:05Z", "ms": 1922779324959.9753 }, "end": { "local": "2030-12-06T12:10:05+02:00", "utc": "2030-12-06T10:10:05Z", "ms": 1922782204959.9753 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 15:15 on Thu 5 Dec to 17:10 on Fri 6 Dec.", "fact": "2030-12-05T13:14:52Z → 2030-12-06T15:10:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 5th, 11:22–12:10 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11113 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Giza, 2030: Friday 6 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akhanda-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-12-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-06", "confidence": "determinate" } ], "quote": "In Giza, Akhaṇḍa Dvādaśī 2030 falls on Friday 6 December. Dvādaśī runs from 15:15 on Thu 5 Dec to 17:10 on Fri 6 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/pradosha-vrata?on=2030-12-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-07", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 933, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-12-06T17:10:21+02:00", "utc": "2030-12-06T15:10:21Z", "ms": 1922800220627.858 }, "end": { "local": "2030-12-07T19:27:45+02:00", "utc": "2030-12-07T17:27:45Z", "ms": 1922894865448.4473 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-06T17:10:21+02:00", "utc": "2030-12-06T15:10:21Z", "ms": 1922800220627.858 }, "end": { "local": "2030-12-07T19:27:45+02:00", "utc": "2030-12-07T17:27:45Z", "ms": 1922894865448.4473 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-12-06", "window": { "start": { "local": "2030-12-06T16:54:47+02:00", "utc": "2030-12-06T14:54:47Z", "ms": 1922799287256.4473 }, "end": { "local": "2030-12-06T18:44:34+02:00", "utc": "2030-12-06T16:44:34Z", "ms": 1922805873923.9463 } }, "covered_min": 94, "window_min": 110, "qualifies": true }, { "local_date": "2030-12-07", "window": { "start": { "local": "2030-12-07T16:54:54+02:00", "utc": "2030-12-07T14:54:54Z", "ms": 1922885694257.7112 }, "end": { "local": "2030-12-07T18:44:46+02:00", "utc": "2030-12-07T16:44:46Z", "ms": 1922892285846.327 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:10 on Fri 6 Dec to 19:28 on Sat 7 Dec.", "fact": "2030-12-06T15:10:21Z → 2030-12-07T17:27:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:55–18:45 on the 6th, 16:55–18:45 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 94 of 110 minutes on the 6th and 110 of 110 on the 7th.", "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 933 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Giza, 2030: Saturday 7 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": "2030-12-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-07", "confidence": "boundary" } ], "quote": "In Giza, Śukla Pradoṣa Vrata 2030 falls on Saturday 7 December. Trayodaśī runs from 17:10 on Fri 6 Dec to 19:28 on Sat 7 Dec and covers all of pradoṣa that evening. It also reaches the previous evening for 94 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-12-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11704, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2030-12-08T22:00:03+02:00", "utc": "2030-12-08T20:00:03Z", "ms": 1922990403108.3293 }, "end": { "local": "2030-12-10T00:40:28+02:00", "utc": "2030-12-09T22:40:28Z", "ms": 1923086428293.1675 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-08T22:00:03+02:00", "utc": "2030-12-08T20:00:03Z", "ms": 1922990403108.3293 }, "end": { "local": "2030-12-10T00:40:28+02:00", "utc": "2030-12-09T22:40:28Z", "ms": 1923086428293.1675 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-12-08", "window": { "start": { "local": "2030-12-08T16:55:03+02:00", "utc": "2030-12-08T14:55:03Z", "ms": 1922972102928.1626 }, "end": { "local": "2030-12-08T18:44:59+02:00", "utc": "2030-12-08T16:44:59Z", "ms": 1922978699118.0398 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "2030-12-09", "window": { "start": { "local": "2030-12-09T16:55:13+02:00", "utc": "2030-12-09T14:55:13Z", "ms": 1923058513258.6812 }, "end": { "local": "2030-12-09T18:45:14+02:00", "utc": "2030-12-09T16:45:14Z", "ms": 1923065113725.8252 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:00 on Sun 8 Dec to 00:40 on Tue 10 Dec.", "fact": "2030-12-08T20:00:03Z → 2030-12-09T22:40:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:55–18:45 on the 8th, 16:55–18:45 on the 9th.", "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 8th and 110 of 110 on the 9th.", "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 11704 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Giza, 2030: Monday 9 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": "2030-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-09", "confidence": "determinate" } ], "quote": "In Giza, Dattātreyotpatti (Datta Jayanti) 2030 falls on Monday 9 December. Pūrṇimā runs from 22:00 on Sun 8 Dec to 00:40 on Tue 10 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/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": "/giza/festivals/2030/sankashta-chaturthi?on=2030-12-13", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37713, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-12-13T08:26:15+02:00", "utc": "2030-12-13T06:26:15Z", "ms": 1923373574926.292 }, "end": { "local": "2030-12-14T10:34:21+02:00", "utc": "2030-12-14T08:34:21Z", "ms": 1923467661166.5466 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-13T08:26:15+02:00", "utc": "2030-12-13T06:26:15Z", "ms": 1923373574926.292 }, "end": { "local": "2030-12-14T10:34:21+02:00", "utc": "2030-12-14T08:34:21Z", "ms": 1923467661166.5466 } }, "kaala": "moonrise", "days": [ { "local_date": "2030-12-13", "window": { "start": { "local": "2030-12-13T20:08:34+02:00", "utc": "2030-12-13T18:08:34Z", "ms": 1923415714041.7659 }, "end": { "local": "2030-12-13T20:08:34+02:00", "utc": "2030-12-13T18:08:34Z", "ms": 1923415714041.7659 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2030-12-14", "window": { "start": { "local": "2030-12-14T21:02:54+02:00", "utc": "2030-12-14T19:02:54Z", "ms": 1923505373704.3528 }, "end": { "local": "2030-12-14T21:02:54+02:00", "utc": "2030-12-14T19:02:54Z", "ms": 1923505373704.3528 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:26 on Fri 13 Dec to 10:34 on Sat 14 Dec.", "fact": "2030-12-13T06:26:15Z → 2030-12-14T08:34:21Z" }, { "step": "kaala", "text": "Moonrise is at 20:09 on the 13th and 21:03 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 37713 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Giza, 2030: Friday 13 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": "2030-12-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-13", "confidence": "determinate" } ], "quote": "In Giza, Saṅkaṣṭa Caturthī 2030 falls on Friday 13 December. Caturthī runs from 08:26 on Fri 13 Dec to 10:34 on Sat 14 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/sankashta-chaturthi?on=2030-12-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/ekadashi?on=2030-12-21", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8179, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2030-12-20T11:20:18+02:00", "utc": "2030-12-20T09:20:18Z", "ms": 1923988818161.8308 }, "end": { "local": "2030-12-21T09:03:20+02:00", "utc": "2030-12-21T07:03:20Z", "ms": 1924067000133.3013 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-20T11:20:18+02:00", "utc": "2030-12-20T09:20:18Z", "ms": 1923988818161.8308 }, "end": { "local": "2030-12-21T09:03:20+02:00", "utc": "2030-12-21T07:03:20Z", "ms": 1924067000133.3013 } }, "kaala": "sunrise", "days": [ { "local_date": "2030-12-20", "window": { "start": { "local": "2030-12-20T06:46:30+02:00", "utc": "2030-12-20T04:46:30Z", "ms": 1923972389754.8179 }, "end": { "local": "2030-12-20T06:46:30+02:00", "utc": "2030-12-20T04:46:30Z", "ms": 1923972389754.8179 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2030-12-21", "window": { "start": { "local": "2030-12-21T06:47:01+02:00", "utc": "2030-12-21T04:47:01Z", "ms": 1924058821082.1138 }, "end": { "local": "2030-12-21T06:47:01+02:00", "utc": "2030-12-21T04:47:01Z", "ms": 1924058821082.1138 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:20 on Fri 20 Dec to 09:03 on Sat 21 Dec.", "fact": "2030-12-20T09:20:18Z → 2030-12-21T07:03:20Z" }, { "step": "kaala", "text": "Sunrise is at 06:46 on the 20th and 06:47 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8179 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Giza, 2030: Saturday 21 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": "2030-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-21", "confidence": "determinate" } ], "quote": "In Giza, Saphalā Ekādaśī 2030 falls on Saturday 21 December. Ekādaśī runs from 11:20 on Fri 20 Dec to 09:03 on Sat 21 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/giza/festivals/2030/ekadashi?on=2030-12-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/pradosha-vrata?on=2030-12-22", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29003, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2030-12-22T06:11:59+02:00", "utc": "2030-12-22T04:11:59Z", "ms": 1924143119048.5706 }, "end": { "local": "2030-12-23T02:53:40+02:00", "utc": "2030-12-23T00:53:40Z", "ms": 1924217619845.6929 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-22T06:11:59+02:00", "utc": "2030-12-22T04:11:59Z", "ms": 1924143119048.5706 }, "end": { "local": "2030-12-23T02:53:40+02:00", "utc": "2030-12-23T00:53:40Z", "ms": 1924217619845.6929 } }, "kaala": "pradosha", "days": [ { "local_date": "2030-12-21", "window": { "start": { "local": "2030-12-21T16:59:21+02:00", "utc": "2030-12-21T14:59:21Z", "ms": 1924095561225.5164 }, "end": { "local": "2030-12-21T18:49:47+02:00", "utc": "2030-12-21T16:49:47Z", "ms": 1924102186551.4702 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "2030-12-22", "window": { "start": { "local": "2030-12-22T16:59:52+02:00", "utc": "2030-12-22T14:59:52Z", "ms": 1924181991543.1367 }, "end": { "local": "2030-12-22T18:50:17+02:00", "utc": "2030-12-22T16:50:17Z", "ms": 1924188616668.1633 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:12 on Sun 22 Dec to 02:54 on Mon 23 Dec.", "fact": "2030-12-22T04:11:59Z → 2030-12-23T00:53:40Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:59–18:50 on the 21st, 17:00–18:50 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 110 minutes on the 21st and 110 of 110 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 29003 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Giza, 2030: Sunday 22 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-12-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-22", "confidence": "determinate" } ], "quote": "In Giza, Kṛṣṇa Pradoṣa Vrata 2030 falls on Sunday 22 December. Trayodaśī runs from 06:12 on Sun 22 Dec to 02:54 on Mon 23 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/giza/festivals/2030/pradosha-vrata?on=2030-12-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/shivaratri?on=2030-12-22", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-22", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 795, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2030-12-23T02:53:40+02:00", "utc": "2030-12-23T00:53:40Z", "ms": 1924217619845.6929 }, "end": { "local": "2030-12-23T23:17:10+02:00", "utc": "2030-12-23T21:17:10Z", "ms": 1924291029862.1582 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-23T02:53:40+02:00", "utc": "2030-12-23T00:53:40Z", "ms": 1924217619845.6929 }, "end": { "local": "2030-12-23T23:17:10+02:00", "utc": "2030-12-23T21:17:10Z", "ms": 1924291029862.1582 } }, "kaala": "nishita", "days": [ { "local_date": "2030-12-22", "window": { "start": { "local": "2030-12-22T23:29:56+02:00", "utc": "2030-12-22T21:29:56Z", "ms": 1924205395761.986 }, "end": { "local": "2030-12-23T00:17:56+02:00", "utc": "2030-12-22T22:17:56Z", "ms": 1924208275761.986 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2030-12-23", "window": { "start": { "local": "2030-12-23T23:30:25+02:00", "utc": "2030-12-23T21:30:25Z", "ms": 1924291825337.2485 }, "end": { "local": "2030-12-24T00:18:25+02:00", "utc": "2030-12-23T22:18:25Z", "ms": 1924294705337.2485 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:54 on Mon 23 Dec to 23:17 on Mon 23 Dec.", "fact": "2030-12-23T00:53:40Z → 2030-12-23T21:17:10Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:30–00:18 on the 22nd, 23:30–00:18 on the 23rd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 795 s" }, { "step": "ruling", "text": "Śivarātri, Giza, 2030: Sunday 22 December.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2030-12-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-22", "confidence": "boundary" } ], "quote": "In Giza, Śivarātri 2030 falls on Sunday 22 December. Caturdaśī runs from 02:54 on Mon 23 Dec to 23:17 on Mon 23 Dec, and reaches niśītha on neither day.", "cite": "https://ahargana.org/giza/festivals/2030/shivaratri?on=2030-12-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/giza/festivals/2030/vinayaka-chaturthi?on=2030-12-27", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "360995", "year": 2030, "local_date": "2030-12-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8450, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2030-12-27T09:11:22+02:00", "utc": "2030-12-27T07:11:22Z", "ms": 1924585882414.37 }, "end": { "local": "2030-12-28T06:36:49+02:00", "utc": "2030-12-28T04:36:49Z", "ms": 1924663008953.2297 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2030-12-27T09:11:22+02:00", "utc": "2030-12-27T07:11:22Z", "ms": 1924585882414.37 }, "end": { "local": "2030-12-28T06:36:49+02:00", "utc": "2030-12-28T04:36:49Z", "ms": 1924663008953.2297 } }, "kaala": "madhyahna", "days": [ { "local_date": "2030-12-27", "window": { "start": { "local": "2030-12-27T11:32:12+02:00", "utc": "2030-12-27T09:32:12Z", "ms": 1924594332015.4072 }, "end": { "local": "2030-12-27T12:20:12+02:00", "utc": "2030-12-27T10:20:12Z", "ms": 1924597212015.4072 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2030-12-28", "window": { "start": { "local": "2030-12-28T11:32:42+02:00", "utc": "2030-12-28T09:32:42Z", "ms": 1924680761794.1636 }, "end": { "local": "2030-12-28T12:20:42+02:00", "utc": "2030-12-28T10:20:42Z", "ms": 1924683641794.1636 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:11 on Fri 27 Dec to 06:37 on Sat 28 Dec.", "fact": "2030-12-27T07:11:22Z → 2030-12-28T04:36:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:32–12:20 on the 27th, 11:33–12:21 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8450 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Giza, 2030: Friday 27 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": "2030-12-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2030-12-27", "confidence": "determinate" } ], "quote": "In Giza, Vināyaka Caturthī 2030 falls on Friday 27 December. Caturthī runs from 09:11 on Fri 27 Dec to 06:37 on Sat 28 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/giza/festivals/2030/vinayaka-chaturthi?on=2030-12-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }