{ "id": "/soweto/festivals/2015", "place": { "id": "953781", "slug": "soweto", "name": "Soweto", "region": "Gauteng, South Africa", "country": "ZA", "lat": -26.26781, "lon": 27.85849, "elevation_m": 1632, "tz": "Africa/Johannesburg" }, "year": 2015, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-01-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31000, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-01-02T05:03:05+02:00", "utc": "2015-01-02T03:03:05Z", "ms": 1420167785386.885 }, "end": { "local": "2015-01-03T05:16:44+02:00", "utc": "2015-01-03T03:16:44Z", "ms": 1420255004368.493 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-01-02T05:03:05+02:00", "utc": "2015-01-02T03:03:05Z", "ms": 1420167785386.885 }, "end": { "local": "2015-01-03T05:16:44+02:00", "utc": "2015-01-03T03:16:44Z", "ms": 1420255004368.493 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-01-01", "window": { "start": { "local": "2015-01-01T19:04:18+02:00", "utc": "2015-01-01T17:04:18Z", "ms": 1420131858241.9756 }, "end": { "local": "2015-01-01T20:26:25+02:00", "utc": "2015-01-01T18:26:25Z", "ms": 1420136785253.6863 } }, "covered_min": 0, "window_min": 82, "qualifies": false }, { "local_date": "2015-01-02", "window": { "start": { "local": "2015-01-02T19:04:34+02:00", "utc": "2015-01-02T17:04:34Z", "ms": 1420218273568.5295 }, "end": { "local": "2015-01-02T20:26:44+02:00", "utc": "2015-01-02T18:26:44Z", "ms": 1420223204006.9507 } }, "covered_min": 82, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:03 on Fri 2 Jan to 05:17 on Sat 3 Jan.", "fact": "2015-01-02T03:03:05Z → 2015-01-03T03:16:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:04–20:26 on the 1st, 19:05–20:27 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 0 of 82 minutes on the 1st and 82 of 82 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 31000 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Friday 2 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": "2015-01-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-02", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Friday 2 January. Trayodaśī runs from 05:03 on Fri 2 Jan to 05:17 on Sat 3 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-01-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-01-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24330, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-01-08T12:27:13+02:00", "utc": "2015-01-08T10:27:13Z", "ms": 1420712833082.876 }, "end": { "local": "2015-01-09T15:01:45+02:00", "utc": "2015-01-09T13:01:45Z", "ms": 1420808504662.6213 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-08T12:27:13+02:00", "utc": "2015-01-08T10:27:13Z", "ms": 1420712833082.876 }, "end": { "local": "2015-01-09T15:01:45+02:00", "utc": "2015-01-09T13:01:45Z", "ms": 1420808504662.6213 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-01-08", "window": { "start": { "local": "2015-01-08T21:11:50+02:00", "utc": "2015-01-08T19:11:50Z", "ms": 1420744310029.6418 }, "end": { "local": "2015-01-08T21:11:50+02:00", "utc": "2015-01-08T19:11:50Z", "ms": 1420744310029.6418 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-01-09", "window": { "start": { "local": "2015-01-09T21:47:14+02:00", "utc": "2015-01-09T19:47:14Z", "ms": 1420832834302.4346 }, "end": { "local": "2015-01-09T21:47:14+02:00", "utc": "2015-01-09T19:47:14Z", "ms": 1420832834302.4346 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:27 on Thu 8 Jan to 15:02 on Fri 9 Jan.", "fact": "2015-01-08T10:27:13Z → 2015-01-09T13:01:45Z" }, { "step": "kaala", "text": "Moonrise is at 21:12 on the 8th and 21:47 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 8th and is not on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24330 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Thursday 8 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": "2015-01-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-08", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Thursday 8 January. Caturthī runs from 12:27 on Thu 8 Jan to 15:02 on Fri 9 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-01-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11264, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 }, "end": { "local": "2015-02-13T04:57:00+02:00", "utc": "2015-02-13T02:57:00Z", "ms": 1423796219594.9927 } }, "span": { "of": "transit", "start": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 }, "end": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 } }, "kaala": "sunset-day", "days": [ { "local_date": "2015-01-14", "window": { "start": { "local": "2015-01-13T19:05:45+02:00", "utc": "2015-01-13T17:05:45Z", "ms": 1421168744594.5815 }, "end": { "local": "2015-01-14T19:05:42+02:00", "utc": "2015-01-14T17:05:42Z", "ms": 1421255141990.0142 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2015-01-15", "window": { "start": { "local": "2015-01-14T19:05:42+02:00", "utc": "2015-01-14T17:05:42Z", "ms": 1421255141990.0142 }, "end": { "local": "2015-01-15T19:05:38+02:00", "utc": "2015-01-15T17:05:38Z", "ms": 1421341537861.469 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2015-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 15:58 on Wed 14 Jan.", "fact": "2015-01-14T13:57:58Z · 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 19:06, and the day of the 15th ends at 19:06.", "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 11264 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Wednesday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Soweto, 2015: Tuesday 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": "2015-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2015-01-13", "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": "2015-01-13", "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 Soweto, Bhogi 2015 falls on Tuesday 13 January. It is kept the day before Pongal, which falls on Wednesday 14 January. The Sun enters Makara at 15:58 on Wed 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/soweto/festivals/2015/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": "/soweto/festivals/2015/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11264, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 }, "end": { "local": "2015-02-13T04:57:00+02:00", "utc": "2015-02-13T02:57:00Z", "ms": 1423796219594.9927 } }, "span": { "of": "transit", "start": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 }, "end": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 } }, "kaala": "sunset-day", "days": [ { "local_date": "2015-01-14", "window": { "start": { "local": "2015-01-13T19:05:45+02:00", "utc": "2015-01-13T17:05:45Z", "ms": 1421168744594.5815 }, "end": { "local": "2015-01-14T19:05:42+02:00", "utc": "2015-01-14T17:05:42Z", "ms": 1421255141990.0142 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2015-01-15", "window": { "start": { "local": "2015-01-14T19:05:42+02:00", "utc": "2015-01-14T17:05:42Z", "ms": 1421255141990.0142 }, "end": { "local": "2015-01-15T19:05:38+02:00", "utc": "2015-01-15T17:05:38Z", "ms": 1421341537861.469 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 15:58 on Wed 14 Jan.", "fact": "2015-01-14T13:57:58Z · 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 19:06, and the day of the 15th ends at 19:06.", "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 11264 s" }, { "step": "ruling", "text": "Pongal, Soweto, 2015: Wednesday 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": "2015-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2015-01-14", "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": "2015-01-14", "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 Soweto, Pongal 2015 falls on Wednesday 14 January. The Sun enters Makara at 15:58 on Wed 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/soweto/festivals/2015/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": "/soweto/festivals/2015/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28922, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 }, "end": { "local": "2015-02-13T04:57:00+02:00", "utc": "2015-02-13T02:57:00Z", "ms": 1423796219594.9927 } }, "span": { "of": "transit", "start": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 }, "end": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 } }, "kaala": "civil-day", "days": [ { "local_date": "2015-01-14", "window": { "start": { "local": "2015-01-14T00:00:00+02:00", "utc": "2015-01-13T22:00:00Z", "ms": 1421186400000 }, "end": { "local": "2015-01-15T00:00:00+02:00", "utc": "2015-01-14T22:00:00Z", "ms": 1421272800000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2015-01-15", "window": { "start": { "local": "2015-01-15T00:00:00+02:00", "utc": "2015-01-14T22:00:00Z", "ms": 1421272800000 }, "end": { "local": "2015-01-16T00:00:00+02:00", "utc": "2015-01-15T22:00:00Z", "ms": 1421359200000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 15:58 on Wed 14 Jan.", "fact": "2015-01-14T13:57:58Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Soweto.", "fact": "civil-day: midnight-to-midnight · Africa/Johannesburg" }, { "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 28922 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Soweto, 2015: Wednesday 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": "2015-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2015-01-14", "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": "2015-01-14", "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 Soweto, Makara Saṅkrānti 2015 falls on Wednesday 14 January. The Sun enters Makara at 15:58 on Wed 14 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11264, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 }, "end": { "local": "2015-02-13T04:57:00+02:00", "utc": "2015-02-13T02:57:00Z", "ms": 1423796219594.9927 } }, "span": { "of": "transit", "start": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 }, "end": { "local": "2015-01-14T15:57:58+02:00", "utc": "2015-01-14T13:57:58Z", "ms": 1421243877879.9688 } }, "kaala": "sunset-day", "days": [ { "local_date": "2015-01-14", "window": { "start": { "local": "2015-01-13T19:05:45+02:00", "utc": "2015-01-13T17:05:45Z", "ms": 1421168744594.5815 }, "end": { "local": "2015-01-14T19:05:42+02:00", "utc": "2015-01-14T17:05:42Z", "ms": 1421255141990.0142 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2015-01-15", "window": { "start": { "local": "2015-01-14T19:05:42+02:00", "utc": "2015-01-14T17:05:42Z", "ms": 1421255141990.0142 }, "end": { "local": "2015-01-15T19:05:38+02:00", "utc": "2015-01-15T17:05:38Z", "ms": 1421341537861.469 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2015-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 15:58 on Wed 14 Jan.", "fact": "2015-01-14T13:57:58Z · 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 19:06, and the day of the 15th ends at 19:06.", "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 11264 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Wednesday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Soweto, 2015: Thursday 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": "2015-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2015-01-15", "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": "2015-01-15", "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 Soweto, Mattu Pongal 2015 falls on Thursday 15 January. It is kept the day after Pongal, which falls on Wednesday 14 January. The Sun enters Makara at 15:58 on Wed 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/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-01-16", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13137, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-01-16T01:51:38+02:00", "utc": "2015-01-15T23:51:38Z", "ms": 1421365898179.474 }, "end": { "local": "2015-01-17T01:09:57+02:00", "utc": "2015-01-16T23:09:57Z", "ms": 1421449797219.2778 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-16T01:51:38+02:00", "utc": "2015-01-15T23:51:38Z", "ms": 1421365898179.474 }, "end": { "local": "2015-01-17T01:09:57+02:00", "utc": "2015-01-16T23:09:57Z", "ms": 1421449797219.2778 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-01-16", "window": { "start": { "local": "2015-01-16T05:30:35+02:00", "utc": "2015-01-16T03:30:35Z", "ms": 1421379035145.4678 }, "end": { "local": "2015-01-16T05:30:35+02:00", "utc": "2015-01-16T03:30:35Z", "ms": 1421379035145.4678 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-01-17", "window": { "start": { "local": "2015-01-17T05:31:23+02:00", "utc": "2015-01-17T03:31:23Z", "ms": 1421465482503.3418 }, "end": { "local": "2015-01-17T05:31:23+02:00", "utc": "2015-01-17T03:31:23Z", "ms": 1421465482503.3418 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:52 on Fri 16 Jan to 01:10 on Sat 17 Jan.", "fact": "2015-01-15T23:51:38Z → 2015-01-16T23:09:57Z" }, { "step": "kaala", "text": "Sunrise is at 05:31 on the 16th and 05:31 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13137 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Soweto, 2015: Friday 16 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": "2015-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-16", "confidence": "determinate" } ], "quote": "In Soweto, Ṣaṭtilā Ekādaśī 2015 falls on Friday 16 January. Ekādaśī runs from 01:52 on Fri 16 Jan to 01:10 on Sat 17 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-01-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-01-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3119, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-01-17T23:37:30+02:00", "utc": "2015-01-17T21:37:30Z", "ms": 1421530650018.438 }, "end": { "local": "2015-01-18T21:20:57+02:00", "utc": "2015-01-18T19:20:57Z", "ms": 1421608856563.3213 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-17T23:37:30+02:00", "utc": "2015-01-17T21:37:30Z", "ms": 1421530650018.438 }, "end": { "local": "2015-01-18T21:20:57+02:00", "utc": "2015-01-18T19:20:57Z", "ms": 1421608856563.3213 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-01-17", "window": { "start": { "local": "2015-01-17T19:05:25+02:00", "utc": "2015-01-17T17:05:25Z", "ms": 1421514325034.7004 }, "end": { "local": "2015-01-17T20:28:59+02:00", "utc": "2015-01-17T18:28:59Z", "ms": 1421519339032.9163 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "2015-01-18", "window": { "start": { "local": "2015-01-18T19:05:16+02:00", "utc": "2015-01-18T17:05:16Z", "ms": 1421600716338.9163 }, "end": { "local": "2015-01-18T20:28:58+02:00", "utc": "2015-01-18T18:28:58Z", "ms": 1421605737848.2854 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:38 on Sat 17 Jan to 21:21 on Sun 18 Jan.", "fact": "2015-01-17T21:37:30Z → 2015-01-18T19:20:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:05–20:29 on the 17th, 19:05–20:29 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 17th and 84 of 84 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3119 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Sunday 18 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": "2015-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-18", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Sunday 18 January. Trayodaśī runs from 23:38 on Sat 17 Jan to 21:21 on Sun 18 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-01-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-01-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9250, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-01-18T21:20:57+02:00", "utc": "2015-01-18T19:20:57Z", "ms": 1421608856563.3213 }, "end": { "local": "2015-01-19T18:29:28+02:00", "utc": "2015-01-19T16:29:28Z", "ms": 1421684968313.0457 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-18T21:20:57+02:00", "utc": "2015-01-18T19:20:57Z", "ms": 1421608856563.3213 }, "end": { "local": "2015-01-19T18:29:28+02:00", "utc": "2015-01-19T16:29:28Z", "ms": 1421684968313.0457 } }, "kaala": "nishita", "days": [ { "local_date": "2015-01-18", "window": { "start": { "local": "2015-01-18T23:55:07+02:00", "utc": "2015-01-18T21:55:07Z", "ms": 1421618106999.0508 }, "end": { "local": "2015-01-19T00:43:07+02:00", "utc": "2015-01-18T22:43:07Z", "ms": 1421620986999.0508 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-01-19", "window": { "start": { "local": "2015-01-19T23:55:26+02:00", "utc": "2015-01-19T21:55:26Z", "ms": 1421704525750.0476 }, "end": { "local": "2015-01-20T00:43:26+02:00", "utc": "2015-01-19T22:43:26Z", "ms": 1421707405750.0476 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:21 on Sun 18 Jan to 18:29 on Mon 19 Jan.", "fact": "2015-01-18T19:20:57Z → 2015-01-19T16:29:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:55–00:43 on the 18th, 23:55–00:43 on the 19th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9250 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Sunday 18 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": "2015-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-18", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Sunday 18 January. Caturdaśī runs from 21:21 on Sun 18 Jan to 18:29 on Mon 19 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-01-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24500, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-01-18T21:20:57+02:00", "utc": "2015-01-18T19:20:57Z", "ms": 1421608856563.3213 }, "end": { "local": "2015-01-19T18:29:28+02:00", "utc": "2015-01-19T16:29:28Z", "ms": 1421684968313.0457 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-18T21:20:57+02:00", "utc": "2015-01-18T19:20:57Z", "ms": 1421608856563.3213 }, "end": { "local": "2015-01-19T18:29:28+02:00", "utc": "2015-01-19T16:29:28Z", "ms": 1421684968313.0457 } }, "kaala": "arunodaya", "days": [ { "local_date": "2015-01-19", "window": { "start": { "local": "2015-01-19T04:09:16+02:00", "utc": "2015-01-19T02:09:16Z", "ms": 1421633356149.8162 }, "end": { "local": "2015-01-19T05:32:58+02:00", "utc": "2015-01-19T03:32:58Z", "ms": 1421638377659.1853 } }, "covered_min": 84, "window_min": 84, "qualifies": true }, { "local_date": "2015-01-20", "window": { "start": { "local": "2015-01-20T04:09:56+02:00", "utc": "2015-01-20T02:09:56Z", "ms": 1421719796142.7556 }, "end": { "local": "2015-01-20T05:33:45+02:00", "utc": "2015-01-20T03:33:45Z", "ms": 1421724825376.4678 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:21 on Sun 18 Jan to 18:29 on Mon 19 Jan.", "fact": "2015-01-18T19:20:57Z → 2015-01-19T16:29:28Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:09–05:33 on the 19th, 04:10–05:34 on the 20th.", "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 84 of 84 minutes on the 19th and 0 of 84 on the 20th.", "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 24500 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Soweto, 2015: Monday 19 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-01-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-19", "confidence": "determinate" } ], "quote": "In Soweto, Yama Tarpaṇa 2015 falls on Monday 19 January. Caturdaśī runs from 21:21 on Sun 18 Jan to 18:29 on Mon 19 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25502, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-01-23T04:51:07+02:00", "utc": "2015-01-23T02:51:07Z", "ms": 1421981467398.8584 }, "end": { "local": "2015-01-24T01:45:58+02:00", "utc": "2015-01-23T23:45:58Z", "ms": 1422056758022.8909 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-23T04:51:07+02:00", "utc": "2015-01-23T02:51:07Z", "ms": 1421981467398.8584 }, "end": { "local": "2015-01-24T01:45:58+02:00", "utc": "2015-01-23T23:45:58Z", "ms": 1422056758022.8909 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-01-23", "window": { "start": { "local": "2015-01-23T11:56:09+02:00", "utc": "2015-01-23T09:56:09Z", "ms": 1422006969360.3735 }, "end": { "local": "2015-01-23T12:44:09+02:00", "utc": "2015-01-23T10:44:09Z", "ms": 1422009849360.3735 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-01-24", "window": { "start": { "local": "2015-01-24T11:56:24+02:00", "utc": "2015-01-24T09:56:24Z", "ms": 1422093384298.247 }, "end": { "local": "2015-01-24T12:44:24+02:00", "utc": "2015-01-24T10:44:24Z", "ms": 1422096264298.247 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:51 on Fri 23 Jan to 01:46 on Sat 24 Jan.", "fact": "2015-01-23T02:51:07Z → 2015-01-23T23:45:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 23rd, 11:56–12:44 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 25502 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Soweto, 2015: Friday 23 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-23", "confidence": "determinate" } ], "quote": "In Soweto, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2015 falls on Friday 23 January. Caturthī runs from 04:51 on Fri 23 Jan to 01:46 on Sat 24 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19046, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-01-23T04:51:07+02:00", "utc": "2015-01-23T02:51:07Z", "ms": 1421981467398.8584 }, "end": { "local": "2015-01-24T01:45:58+02:00", "utc": "2015-01-23T23:45:58Z", "ms": 1422056758022.8909 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-23T04:51:07+02:00", "utc": "2015-01-23T02:51:07Z", "ms": 1421981467398.8584 }, "end": { "local": "2015-01-24T01:45:58+02:00", "utc": "2015-01-23T23:45:58Z", "ms": 1422056758022.8909 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-01-22", "window": { "start": { "local": "2015-01-22T19:04:26+02:00", "utc": "2015-01-22T17:04:26Z", "ms": 1421946266381.7976 }, "end": { "local": "2015-01-22T20:28:40+02:00", "utc": "2015-01-22T18:28:40Z", "ms": 1421951320011.7808 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "2015-01-23", "window": { "start": { "local": "2015-01-23T19:04:10+02:00", "utc": "2015-01-23T17:04:10Z", "ms": 1422032650114.076 }, "end": { "local": "2015-01-23T20:28:32+02:00", "utc": "2015-01-23T18:28:32Z", "ms": 1422037712265.568 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:51 on Fri 23 Jan to 01:46 on Sat 24 Jan.", "fact": "2015-01-23T02:51:07Z → 2015-01-23T23:45:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:04–20:29 on the 22nd, 19:04–20:29 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 0 of 84 minutes on the 22nd and 84 of 84 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19046 s" }, { "step": "ruling", "text": "Tila Caturthī, Soweto, 2015: Friday 23 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-23", "confidence": "determinate" } ], "quote": "In Soweto, Tila Caturthī 2015 falls on Friday 23 January. Caturthī runs from 04:51 on Fri 23 Jan to 01:46 on Sat 24 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36626, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2015-01-24T01:45:58+02:00", "utc": "2015-01-23T23:45:58Z", "ms": 1422056758022.8909 }, "end": { "local": "2015-01-24T23:06:01+02:00", "utc": "2015-01-24T21:06:01Z", "ms": 1422133561345.8967 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-24T01:45:58+02:00", "utc": "2015-01-23T23:45:58Z", "ms": 1422056758022.8909 }, "end": { "local": "2015-01-24T23:06:01+02:00", "utc": "2015-01-24T21:06:01Z", "ms": 1422133561345.8967 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-01-24", "window": { "start": { "local": "2015-01-24T11:56:24+02:00", "utc": "2015-01-24T09:56:24Z", "ms": 1422093384298.247 }, "end": { "local": "2015-01-24T12:44:24+02:00", "utc": "2015-01-24T10:44:24Z", "ms": 1422096264298.247 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-01-25", "window": { "start": { "local": "2015-01-25T11:56:38+02:00", "utc": "2015-01-25T09:56:38Z", "ms": 1422179798437.0708 }, "end": { "local": "2015-01-25T12:44:38+02:00", "utc": "2015-01-25T10:44:38Z", "ms": 1422182678437.0708 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:46 on Sat 24 Jan to 23:06 on Sat 24 Jan.", "fact": "2015-01-23T23:45:58Z → 2015-01-24T21:06:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 24th, 11:57–12:45 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 36626 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Soweto, 2015: Saturday 24 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-24", "confidence": "determinate" } ], "quote": "In Soweto, Śrī Pañcamī 2015 falls on Saturday 24 January. Pañcamī runs from 01:46 on Sat 24 Jan to 23:06 on Sat 24 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36626, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2015-01-24T01:45:58+02:00", "utc": "2015-01-23T23:45:58Z", "ms": 1422056758022.8909 }, "end": { "local": "2015-01-24T23:06:01+02:00", "utc": "2015-01-24T21:06:01Z", "ms": 1422133561345.8967 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-24T01:45:58+02:00", "utc": "2015-01-23T23:45:58Z", "ms": 1422056758022.8909 }, "end": { "local": "2015-01-24T23:06:01+02:00", "utc": "2015-01-24T21:06:01Z", "ms": 1422133561345.8967 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-01-24", "window": { "start": { "local": "2015-01-24T11:56:24+02:00", "utc": "2015-01-24T09:56:24Z", "ms": 1422093384298.247 }, "end": { "local": "2015-01-24T12:44:24+02:00", "utc": "2015-01-24T10:44:24Z", "ms": 1422096264298.247 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-01-25", "window": { "start": { "local": "2015-01-25T11:56:38+02:00", "utc": "2015-01-25T09:56:38Z", "ms": 1422179798437.0708 }, "end": { "local": "2015-01-25T12:44:38+02:00", "utc": "2015-01-25T10:44:38Z", "ms": 1422182678437.0708 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:46 on Sat 24 Jan to 23:06 on Sat 24 Jan.", "fact": "2015-01-23T23:45:58Z → 2015-01-24T21:06:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 24th, 11:57–12:45 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36626 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Soweto, 2015: Saturday 24 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-24", "confidence": "determinate" } ], "quote": "In Soweto, Vasanta Pañcamī 2015 falls on Saturday 24 January. Pañcamī runs from 01:46 on Sat 24 Jan to 23:06 on Sat 24 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26212, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2015-01-25T20:57:00+02:00", "utc": "2015-01-25T18:57:00Z", "ms": 1422212219848.5034 }, "end": { "local": "2015-01-26T19:22:22+02:00", "utc": "2015-01-26T17:22:22Z", "ms": 1422292941795.7615 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-25T20:57:00+02:00", "utc": "2015-01-25T18:57:00Z", "ms": 1422212219848.5034 }, "end": { "local": "2015-01-26T19:22:22+02:00", "utc": "2015-01-26T17:22:22Z", "ms": 1422292941795.7615 } }, "kaala": "arunodaya", "days": [ { "local_date": "2015-01-26", "window": { "start": { "local": "2015-01-26T04:13:51+02:00", "utc": "2015-01-26T02:13:51Z", "ms": 1422238431437.7314 }, "end": { "local": "2015-01-26T05:38:31+02:00", "utc": "2015-01-26T03:38:31Z", "ms": 1422243511183.8672 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "2015-01-27", "window": { "start": { "local": "2015-01-27T04:14:30+02:00", "utc": "2015-01-27T02:14:30Z", "ms": 1422324869606.1248 }, "end": { "local": "2015-01-27T05:39:18+02:00", "utc": "2015-01-27T03:39:18Z", "ms": 1422329958414.5996 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:57 on Sun 25 Jan to 19:22 on Mon 26 Jan.", "fact": "2015-01-25T18:57:00Z → 2015-01-26T17:22:22Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:14–05:39 on the 26th, 04:14–05:39 on the 27th.", "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 85 of 85 minutes on the 26th and 0 of 85 on the 27th.", "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 26212 s" }, { "step": "ruling", "text": "Ratha Saptamī, Soweto, 2015: Monday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-26", "confidence": "determinate" } ], "quote": "In Soweto, Ratha Saptamī 2015 falls on Monday 26 January. Saptamī runs from 20:57 on Sun 25 Jan to 19:22 on Mon 26 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-01-30", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39494, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-01-29T18:06:57+02:00", "utc": "2015-01-29T16:06:57Z", "ms": 1422547616824.9668 }, "end": { "local": "2015-01-30T18:44:11+02:00", "utc": "2015-01-30T16:44:11Z", "ms": 1422636251015.9448 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-29T18:06:57+02:00", "utc": "2015-01-29T16:06:57Z", "ms": 1422547616824.9668 }, "end": { "local": "2015-01-30T18:44:11+02:00", "utc": "2015-01-30T16:44:11Z", "ms": 1422636251015.9448 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-01-30", "window": { "start": { "local": "2015-01-30T05:41:39+02:00", "utc": "2015-01-30T03:41:39Z", "ms": 1422589298856.2507 }, "end": { "local": "2015-01-30T05:41:39+02:00", "utc": "2015-01-30T03:41:39Z", "ms": 1422589298856.2507 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-01-31", "window": { "start": { "local": "2015-01-31T05:42:25+02:00", "utc": "2015-01-31T03:42:25Z", "ms": 1422675745180.5398 }, "end": { "local": "2015-01-31T05:42:25+02:00", "utc": "2015-01-31T03:42:25Z", "ms": 1422675745180.5398 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:07 on Thu 29 Jan to 18:44 on Fri 30 Jan.", "fact": "2015-01-29T16:06:57Z → 2015-01-30T16:44:11Z" }, { "step": "kaala", "text": "Sunrise is at 05:42 on the 30th and 05:42 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 39494 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Soweto, 2015: Friday 30 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": "2015-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-30", "confidence": "determinate" } ], "quote": "In Soweto, Jayā Ekādaśī 2015 falls on Friday 30 January. Ekādaśī runs from 18:07 on Thu 29 Jan to 18:44 on Fri 30 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-01-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21514, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2015-01-30T18:44:11+02:00", "utc": "2015-01-30T16:44:11Z", "ms": 1422636251015.9448 }, "end": { "local": "2015-01-31T19:47:30+02:00", "utc": "2015-01-31T17:47:30Z", "ms": 1422726449986.2974 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-30T18:44:11+02:00", "utc": "2015-01-30T16:44:11Z", "ms": 1422636251015.9448 }, "end": { "local": "2015-01-31T19:47:30+02:00", "utc": "2015-01-31T17:47:30Z", "ms": 1422726449986.2974 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-01-30", "window": { "start": { "local": "2015-01-30T11:57:37+02:00", "utc": "2015-01-30T09:57:37Z", "ms": 1422611856895.329 }, "end": { "local": "2015-01-30T12:45:37+02:00", "utc": "2015-01-30T10:45:37Z", "ms": 1422614736895.329 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-01-31", "window": { "start": { "local": "2015-01-31T11:57:46+02:00", "utc": "2015-01-31T09:57:46Z", "ms": 1422698266118.2175 }, "end": { "local": "2015-01-31T12:45:46+02:00", "utc": "2015-01-31T10:45:46Z", "ms": 1422701146118.2175 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:44 on Fri 30 Jan to 19:47 on Sat 31 Jan.", "fact": "2015-01-30T16:44:11Z → 2015-01-31T17:47:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 30th, 11:58–12:46 on the 31st.", "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 30th and 48 of 48 on the 31st.", "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 21514 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Soweto, 2015: Saturday 31 January.", "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": "2015-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-01-31", "confidence": "determinate" } ], "quote": "In Soweto, Bhīṣma Dvādaśī 2015 falls on Saturday 31 January. Dvādaśī runs from 18:44 on Fri 30 Jan to 19:47 on Sat 31 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/pradosha-vrata?on=2015-02-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-02-01", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2354, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-01-31T19:47:30+02:00", "utc": "2015-01-31T17:47:30Z", "ms": 1422726449986.2974 }, "end": { "local": "2015-02-01T21:14:10+02:00", "utc": "2015-02-01T19:14:10Z", "ms": 1422818050358.9924 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-01-31T19:47:30+02:00", "utc": "2015-01-31T17:47:30Z", "ms": 1422726449986.2974 }, "end": { "local": "2015-02-01T21:14:10+02:00", "utc": "2015-02-01T19:14:10Z", "ms": 1422818050358.9924 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-01-31", "window": { "start": { "local": "2015-01-31T19:01:07+02:00", "utc": "2015-01-31T17:01:07Z", "ms": 1422723667055.8953 }, "end": { "local": "2015-01-31T20:26:44+02:00", "utc": "2015-01-31T18:26:44Z", "ms": 1422728803612.2258 } }, "covered_min": 39, "window_min": 86, "qualifies": true }, { "local_date": "2015-02-01", "window": { "start": { "local": "2015-02-01T19:00:38+02:00", "utc": "2015-02-01T17:00:38Z", "ms": 1422810037809.385 }, "end": { "local": "2015-02-01T20:26:24+02:00", "utc": "2015-02-01T18:26:24Z", "ms": 1422815184365.922 } }, "covered_min": 86, "window_min": 86, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:47 on Sat 31 Jan to 21:14 on Sun 1 Feb.", "fact": "2015-01-31T17:47:30Z → 2015-02-01T19:14:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:01–20:27 on the 31st, 19:01–20:26 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 39 of 86 minutes on the 31st and 86 of 86 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2354 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Sunday 1 February.", "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": "2015-02-01", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-02-01", "confidence": "boundary" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Sunday 1 February. Trayodaśī runs from 19:47 on Sat 31 Jan to 21:14 on Sun 1 Feb and covers all of pradoṣa that evening. It also reaches the previous evening for 39 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-02-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36958, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-02-02T23:02:00+02:00", "utc": "2015-02-02T21:02:00Z", "ms": 1422910919824.085 }, "end": { "local": "2015-02-04T01:08:56+02:00", "utc": "2015-02-03T23:08:56Z", "ms": 1423004936309.8447 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2015-02-02T23:02:00+02:00", "utc": "2015-02-02T21:02:00Z", "ms": 1422910919824.085 }, "end": { "local": "2015-02-04T01:08:56+02:00", "utc": "2015-02-03T23:08:56Z", "ms": 1423004936309.8447 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-02-02", "window": { "start": { "local": "2015-02-02T11:58:02+02:00", "utc": "2015-02-02T09:58:02Z", "ms": 1422871082100.3535 }, "end": { "local": "2015-02-02T12:46:02+02:00", "utc": "2015-02-02T10:46:02Z", "ms": 1422873962100.3535 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-02-03", "window": { "start": { "local": "2015-02-03T11:58:09+02:00", "utc": "2015-02-03T09:58:09Z", "ms": 1422957488866.673 }, "end": { "local": "2015-02-03T12:46:09+02:00", "utc": "2015-02-03T10:46:09Z", "ms": 1422960368866.673 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:02 on Mon 2 Feb to 01:09 on Wed 4 Feb.", "fact": "2015-02-02T21:02:00Z → 2015-02-03T23:08:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 2nd, 11:58–12:46 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "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 36958 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Soweto, 2015: Tuesday 3 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": "2015-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-02-03", "confidence": "determinate" } ], "quote": "In Soweto, Māghī Pūrṇimā 2015 falls on Tuesday 3 February. Pūrṇimā runs from 23:02 on Mon 2 Feb to 01:09 on Wed 4 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-02-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36031, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-02-07T08:51:02+02:00", "utc": "2015-02-07T06:51:02Z", "ms": 1423291861771.2876 }, "end": { "local": "2015-02-08T11:31:15+02:00", "utc": "2015-02-08T09:31:15Z", "ms": 1423387874646.2764 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-02-07T08:51:02+02:00", "utc": "2015-02-07T06:51:02Z", "ms": 1423291861771.2876 }, "end": { "local": "2015-02-08T11:31:15+02:00", "utc": "2015-02-08T09:31:15Z", "ms": 1423387874646.2764 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-02-07", "window": { "start": { "local": "2015-02-07T20:56:58+02:00", "utc": "2015-02-07T18:56:58Z", "ms": 1423335417894.358 }, "end": { "local": "2015-02-07T20:56:58+02:00", "utc": "2015-02-07T18:56:58Z", "ms": 1423335417894.358 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-02-08", "window": { "start": { "local": "2015-02-08T21:31:46+02:00", "utc": "2015-02-08T19:31:46Z", "ms": 1423423905651.6426 }, "end": { "local": "2015-02-08T21:31:46+02:00", "utc": "2015-02-08T19:31:46Z", "ms": 1423423905651.6426 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:51 on Sat 7 Feb to 11:31 on Sun 8 Feb.", "fact": "2015-02-07T06:51:02Z → 2015-02-08T09:31:15Z" }, { "step": "kaala", "text": "Moonrise is at 20:57 on the 7th and 21:32 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36031 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Saturday 7 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": "2015-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-02-07", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Saturday 7 February. Caturthī runs from 08:51 on Sat 7 Feb to 11:31 on Sun 8 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-02-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ekadashi?on=2015-02-15", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32336, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-02-14T16:45:50+02:00", "utc": "2015-02-14T14:45:50Z", "ms": 1423925149888.913 }, "end": { "local": "2015-02-15T14:52:15+02:00", "utc": "2015-02-15T12:52:15Z", "ms": 1424004735406.983 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-02-14T16:45:50+02:00", "utc": "2015-02-14T14:45:50Z", "ms": 1423925149888.913 }, "end": { "local": "2015-02-15T14:52:15+02:00", "utc": "2015-02-15T12:52:15Z", "ms": 1424004735406.983 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-02-14", "window": { "start": { "local": "2015-02-14T05:52:39+02:00", "utc": "2015-02-14T03:52:39Z", "ms": 1423885958922.5356 }, "end": { "local": "2015-02-14T05:52:39+02:00", "utc": "2015-02-14T03:52:39Z", "ms": 1423885958922.5356 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-02-15", "window": { "start": { "local": "2015-02-15T05:53:20+02:00", "utc": "2015-02-15T03:53:20Z", "ms": 1423972399905.5803 }, "end": { "local": "2015-02-15T05:53:20+02:00", "utc": "2015-02-15T03:53:20Z", "ms": 1423972399905.5803 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:46 on Sat 14 Feb to 14:52 on Sun 15 Feb.", "fact": "2015-02-14T14:45:50Z → 2015-02-15T12:52:15Z" }, { "step": "kaala", "text": "Sunrise is at 05:53 on the 14th and 05:53 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 32336 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Soweto, 2015: Sunday 15 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": "2015-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-02-15", "confidence": "determinate" } ], "quote": "In Soweto, Vijayā Ekādaśī 2015 falls on Sunday 15 February. Ekādaśī runs from 16:46 on Sat 14 Feb to 14:52 on Sun 15 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-02-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-02-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23679, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-02-16T12:16:12+02:00", "utc": "2015-02-16T10:16:12Z", "ms": 1424081772202.968 }, "end": { "local": "2015-02-17T09:06:27+02:00", "utc": "2015-02-17T07:06:27Z", "ms": 1424156786767.3298 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-02-16T12:16:12+02:00", "utc": "2015-02-16T10:16:12Z", "ms": 1424081772202.968 }, "end": { "local": "2015-02-17T09:06:27+02:00", "utc": "2015-02-17T07:06:27Z", "ms": 1424156786767.3298 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-02-16", "window": { "start": { "local": "2015-02-16T18:50:51+02:00", "utc": "2015-02-16T16:50:51Z", "ms": 1424105451489.4077 }, "end": { "local": "2015-02-16T20:19:22+02:00", "utc": "2015-02-16T18:19:22Z", "ms": 1424110762039.799 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "2015-02-17", "window": { "start": { "local": "2015-02-17T18:50:04+02:00", "utc": "2015-02-17T16:50:04Z", "ms": 1424191803717.4492 }, "end": { "local": "2015-02-17T20:18:46+02:00", "utc": "2015-02-17T18:18:46Z", "ms": 1424197125932.876 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:16 on Mon 16 Feb to 09:06 on Tue 17 Feb.", "fact": "2015-02-16T10:16:12Z → 2015-02-17T07:06:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:19 on the 16th, 18:50–20:19 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 89 of 89 minutes on the 16th and 0 of 89 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 23679 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Monday 16 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": "2015-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-02-16", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Monday 16 February. Trayodaśī runs from 12:16 on Mon 16 Feb to 09:06 on Tue 17 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-02-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-02-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17189, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-02-17T09:06:27+02:00", "utc": "2015-02-17T07:06:27Z", "ms": 1424156786767.3298 }, "end": { "local": "2015-02-18T05:33:11+02:00", "utc": "2015-02-18T03:33:11Z", "ms": 1424230390537.5994 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-02-17T09:06:27+02:00", "utc": "2015-02-17T07:06:27Z", "ms": 1424156786767.3298 }, "end": { "local": "2015-02-18T05:33:11+02:00", "utc": "2015-02-18T03:33:11Z", "ms": 1424230390537.5994 } }, "kaala": "nishita", "days": [ { "local_date": "2015-02-16", "window": { "start": { "local": "2015-02-16T23:58:46+02:00", "utc": "2015-02-16T21:58:46Z", "ms": 1424123926053.3755 }, "end": { "local": "2015-02-17T00:46:46+02:00", "utc": "2015-02-16T22:46:46Z", "ms": 1424126806053.3755 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-02-17", "window": { "start": { "local": "2015-02-17T23:58:42+02:00", "utc": "2015-02-17T21:58:42Z", "ms": 1424210322025.2998 }, "end": { "local": "2015-02-18T00:46:42+02:00", "utc": "2015-02-17T22:46:42Z", "ms": 1424213202025.2998 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:06 on Tue 17 Feb to 05:33 on Wed 18 Feb.", "fact": "2015-02-17T07:06:27Z → 2015-02-18T03:33:11Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:59–00:47 on the 16th, 23:59–00:47 on the 17th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 17189 s" }, { "step": "ruling", "text": "Mahāśivarātri, Soweto, 2015: Tuesday 17 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-02-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-02-17", "confidence": "determinate" } ], "quote": "In Soweto, Mahāśivarātri 2015 falls on Tuesday 17 February. Caturdaśī runs from 09:06 on Tue 17 Feb to 05:33 on Wed 18 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-02-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 726, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-02-21T15:01:40+02:00", "utc": "2015-02-21T13:01:40Z", "ms": 1424523700224.9946 }, "end": { "local": "2015-02-22T12:09:59+02:00", "utc": "2015-02-22T10:09:59Z", "ms": 1424599798523.6353 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-02-21T15:01:40+02:00", "utc": "2015-02-21T13:01:40Z", "ms": 1424523700224.9946 }, "end": { "local": "2015-02-22T12:09:59+02:00", "utc": "2015-02-22T10:09:59Z", "ms": 1424599798523.6353 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-02-21", "window": { "start": { "local": "2015-02-21T11:58:00+02:00", "utc": "2015-02-21T09:58:00Z", "ms": 1424512680124.4783 }, "end": { "local": "2015-02-21T12:46:00+02:00", "utc": "2015-02-21T10:46:00Z", "ms": 1424515560124.4783 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-02-22", "window": { "start": { "local": "2015-02-22T11:57:53+02:00", "utc": "2015-02-22T09:57:53Z", "ms": 1424599072960.019 }, "end": { "local": "2015-02-22T12:45:53+02:00", "utc": "2015-02-22T10:45:53Z", "ms": 1424601952960.019 } }, "covered_min": 12, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:02 on Sat 21 Feb to 12:10 on Sun 22 Feb.", "fact": "2015-02-21T13:01:40Z → 2015-02-22T10:09:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 21st, 11:58–12:46 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 12 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 726 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Sunday 22 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-02-22", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Sunday 22 February. Caturthī runs from 15:02 on Sat 21 Feb to 12:10 on Sun 22 Feb and covers 12 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-02-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ekadashi?on=2015-03-01", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10349, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-02-28T08:54:02+02:00", "utc": "2015-02-28T06:54:02Z", "ms": 1425106442003.5054 }, "end": { "local": "2015-03-01T10:32:44+02:00", "utc": "2015-03-01T08:32:44Z", "ms": 1425198764090.7761 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-02-28T08:54:02+02:00", "utc": "2015-02-28T06:54:02Z", "ms": 1425106442003.5054 }, "end": { "local": "2015-03-01T10:32:44+02:00", "utc": "2015-03-01T08:32:44Z", "ms": 1425198764090.7761 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-02-28", "window": { "start": { "local": "2015-02-28T06:01:33+02:00", "utc": "2015-02-28T04:01:33Z", "ms": 1425096093083.8354 }, "end": { "local": "2015-02-28T06:01:33+02:00", "utc": "2015-02-28T04:01:33Z", "ms": 1425096093083.8354 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-03-01", "window": { "start": { "local": "2015-03-01T06:02:08+02:00", "utc": "2015-03-01T04:02:08Z", "ms": 1425182527955.7014 }, "end": { "local": "2015-03-01T06:02:08+02:00", "utc": "2015-03-01T04:02:08Z", "ms": 1425182527955.7014 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:54 on Sat 28 Feb to 10:33 on Sun 1 Mar.", "fact": "2015-02-28T06:54:02Z → 2015-03-01T08:32:44Z" }, { "step": "kaala", "text": "Sunrise is at 06:02 on the 28th and 06:02 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 28th and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10349 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Soweto, 2015: Sunday 1 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": "2015-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-01", "confidence": "determinate" } ], "quote": "In Soweto, Āmalakī Ekādaśī 2015 falls on Sunday 1 March. Ekādaśī runs from 08:54 on Sat 28 Feb to 10:33 on Sun 1 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-03-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-03-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13287, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-03-02T12:35:34+02:00", "utc": "2015-03-02T10:35:34Z", "ms": 1425292533771.8057 }, "end": { "local": "2015-03-03T14:56:00+02:00", "utc": "2015-03-03T12:56:00Z", "ms": 1425387360167.5645 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-03-02T12:35:34+02:00", "utc": "2015-03-02T10:35:34Z", "ms": 1425292533771.8057 }, "end": { "local": "2015-03-03T14:56:00+02:00", "utc": "2015-03-03T12:56:00Z", "ms": 1425387360167.5645 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-03-02", "window": { "start": { "local": "2015-03-02T18:38:25+02:00", "utc": "2015-03-02T16:38:25Z", "ms": 1425314305408.5815 }, "end": { "local": "2015-03-02T20:09:44+02:00", "utc": "2015-03-02T18:09:44Z", "ms": 1425319784218.8416 } }, "covered_min": 91, "window_min": 91, "qualifies": true }, { "local_date": "2015-03-03", "window": { "start": { "local": "2015-03-03T18:37:27+02:00", "utc": "2015-03-03T16:37:27Z", "ms": 1425400646683.5342 }, "end": { "local": "2015-03-03T20:08:58+02:00", "utc": "2015-03-03T18:08:58Z", "ms": 1425406137814.6057 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:36 on Mon 2 Mar to 14:56 on Tue 3 Mar.", "fact": "2015-03-02T10:35:34Z → 2015-03-03T12:56:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:38–20:10 on the 2nd, 18:37–20:09 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 91 of 91 minutes on the 2nd and 0 of 92 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13287 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Monday 2 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": "2015-03-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-02", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Monday 2 March. Trayodaśī runs from 12:36 on Mon 2 Mar to 14:56 on Tue 3 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-03-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-05", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 4114, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-03-04T17:27:54+02:00", "utc": "2015-03-04T15:27:54Z", "ms": 1425482873778.05 }, "end": { "local": "2015-03-05T20:05:24+02:00", "utc": "2015-03-05T18:05:24Z", "ms": 1425578724247.3608 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-03-04T17:27:54+02:00", "utc": "2015-03-04T15:27:54Z", "ms": 1425482873778.05 }, "end": { "local": "2015-03-05T20:05:24+02:00", "utc": "2015-03-05T18:05:24Z", "ms": 1425578724247.3608 } }, "kaala": "sayahna", "days": [ { "local_date": "2015-03-04", "window": { "start": { "local": "2015-03-04T16:05:56+02:00", "utc": "2015-03-04T14:05:56Z", "ms": 1425477955944.9607 }, "end": { "local": "2015-03-04T18:36:27+02:00", "utc": "2015-03-04T16:36:27Z", "ms": 1425486987389.5583 } }, "covered_min": 69, "window_min": 151, "qualifies": true }, { "local_date": "2015-03-05", "window": { "start": { "local": "2015-03-05T16:05:15+02:00", "utc": "2015-03-05T14:05:15Z", "ms": 1425564314740.8428 }, "end": { "local": "2015-03-05T18:35:28+02:00", "utc": "2015-03-05T16:35:28Z", "ms": 1425573327557.2297 } }, "covered_min": 150, "window_min": 150, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:28 on Wed 4 Mar to 20:05 on Thu 5 Mar.", "fact": "2015-03-04T15:27:54Z → 2015-03-05T18:05:24Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:06–18:36 on the 4th, 16:05–18:35 on the 5th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 69 of 151 minutes on the 4th and 150 of 150 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 4114 s" }, { "step": "ruling", "text": "Holikā Dahana, Soweto, 2015: Thursday 5 March.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2015-03-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-05", "confidence": "boundary" } ], "quote": "In Soweto, Holikā Dahana 2015 falls on Thursday 5 March. Pūrṇimā runs from 17:28 on Wed 4 Mar to 20:05 on Thu 5 Mar and covers all of sāyāhna that late afternoon. It also reaches the previous late afternoon for 69 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/soweto/festivals/2015/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": "/soweto/festivals/2015/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-06", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 4114, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-03-04T17:27:54+02:00", "utc": "2015-03-04T15:27:54Z", "ms": 1425482873778.05 }, "end": { "local": "2015-03-05T20:05:24+02:00", "utc": "2015-03-05T18:05:24Z", "ms": 1425578724247.3608 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2015-03-04T17:27:54+02:00", "utc": "2015-03-04T15:27:54Z", "ms": 1425482873778.05 }, "end": { "local": "2015-03-05T20:05:24+02:00", "utc": "2015-03-05T18:05:24Z", "ms": 1425578724247.3608 } }, "kaala": "sayahna", "days": [ { "local_date": "2015-03-04", "window": { "start": { "local": "2015-03-04T16:05:56+02:00", "utc": "2015-03-04T14:05:56Z", "ms": 1425477955944.9607 }, "end": { "local": "2015-03-04T18:36:27+02:00", "utc": "2015-03-04T16:36:27Z", "ms": 1425486987389.5583 } }, "covered_min": 69, "window_min": 151, "qualifies": true }, { "local_date": "2015-03-05", "window": { "start": { "local": "2015-03-05T16:05:15+02:00", "utc": "2015-03-05T14:05:15Z", "ms": 1425564314740.8428 }, "end": { "local": "2015-03-05T18:35:28+02:00", "utc": "2015-03-05T16:35:28Z", "ms": 1425573327557.2297 } }, "covered_min": 150, "window_min": 150, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2015-03-05", "days": 1 }, "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:28 on Wed 4 Mar to 20:05 on Thu 5 Mar.", "fact": "2015-03-04T15:27:54Z → 2015-03-05T18:05:24Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:06–18:36 on the 4th, 16:05–18:35 on the 5th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 69 of 151 minutes on the 4th and 150 of 150 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 4114 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Thursday 5 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Soweto, 2015: Friday 6 March.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2015-03-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-06", "confidence": "boundary" } ], "quote": "In Soweto, Holī 2015 falls on Friday 6 March. It is kept the day after Holikā Dahana, which falls on Thursday 5 March. Pūrṇimā runs from 17:28 on Wed 4 Mar to 20:05 on Thu 5 Mar and covers all of sāyāhna on the 5th. It also reaches the previous late afternoon for 69 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/soweto/festivals/2015/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": "/soweto/festivals/2015/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26568, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2015-03-05T20:05:24+02:00", "utc": "2015-03-05T18:05:24Z", "ms": 1425578724247.3608 }, "end": { "local": "2015-03-06T22:42:41+02:00", "utc": "2015-03-06T20:42:41Z", "ms": 1425674561474.985 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-05T20:05:24+02:00", "utc": "2015-03-05T18:05:24Z", "ms": 1425578724247.3608 }, "end": { "local": "2015-03-06T22:42:41+02:00", "utc": "2015-03-06T20:42:41Z", "ms": 1425674561474.985 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-03-06", "window": { "start": { "local": "2015-03-06T06:04:56+02:00", "utc": "2015-03-06T04:04:56Z", "ms": 1425614696425.1587 }, "end": { "local": "2015-03-06T06:04:56+02:00", "utc": "2015-03-06T04:04:56Z", "ms": 1425614696425.1587 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-03-07", "window": { "start": { "local": "2015-03-07T06:05:29+02:00", "utc": "2015-03-07T04:05:29Z", "ms": 1425701129030.1848 }, "end": { "local": "2015-03-07T06:05:29+02:00", "utc": "2015-03-07T04:05:29Z", "ms": 1425701129030.1848 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 20:05 on Thu 5 Mar to 22:43 on Fri 6 Mar.", "fact": "2015-03-05T18:05:24Z → 2015-03-06T20:42:41Z" }, { "step": "kaala", "text": "Sunrise is at 06:05 on the 6th and 06:05 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 6th and is not on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26568 s" }, { "step": "ruling", "text": "Vasantotsava, Soweto, 2015: Friday 6 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": "2015-03-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-06", "confidence": "determinate" } ], "quote": "In Soweto, Vasantotsava 2015 falls on Friday 6 March. Pratipadā runs from 20:05 on Thu 5 Mar to 22:43 on Fri 6 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-03-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26532, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-03-09T03:30:59+02:00", "utc": "2015-03-09T01:30:59Z", "ms": 1425864659083.9158 }, "end": { "local": "2015-03-10T05:27:33+02:00", "utc": "2015-03-10T03:27:33Z", "ms": 1425958052578.8125 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-09T03:30:59+02:00", "utc": "2015-03-09T01:30:59Z", "ms": 1425864659083.9158 }, "end": { "local": "2015-03-10T05:27:33+02:00", "utc": "2015-03-10T03:27:33Z", "ms": 1425958052578.8125 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-03-08", "window": { "start": { "local": "2015-03-08T20:08:47+02:00", "utc": "2015-03-08T18:08:47Z", "ms": 1425838126699.6277 }, "end": { "local": "2015-03-08T20:08:47+02:00", "utc": "2015-03-08T18:08:47Z", "ms": 1425838126699.6277 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-03-09", "window": { "start": { "local": "2015-03-09T20:46:07+02:00", "utc": "2015-03-09T18:46:07Z", "ms": 1425926767131.2844 }, "end": { "local": "2015-03-09T20:46:07+02:00", "utc": "2015-03-09T18:46:07Z", "ms": 1425926767131.2844 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:31 on Mon 9 Mar to 05:28 on Tue 10 Mar.", "fact": "2015-03-09T01:30:59Z → 2015-03-10T03:27:33Z" }, { "step": "kaala", "text": "Moonrise is at 20:09 on the 8th and 20:46 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 8th and is on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26532 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Monday 9 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": "2015-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-09", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Monday 9 March. Caturthī runs from 03:31 on Mon 9 Mar to 05:28 on Tue 10 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-03-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14103, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-03-13T07:58:53+02:00", "utc": "2015-03-13T05:58:53Z", "ms": 1426226332693.654 }, "end": { "local": "2015-03-14T07:25:44+02:00", "utc": "2015-03-14T05:25:44Z", "ms": 1426310744082.3574 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-13T07:58:53+02:00", "utc": "2015-03-13T05:58:53Z", "ms": 1426226332693.654 }, "end": { "local": "2015-03-14T07:25:44+02:00", "utc": "2015-03-14T05:25:44Z", "ms": 1426310744082.3574 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-03-13", "window": { "start": { "local": "2015-03-13T11:53:56+02:00", "utc": "2015-03-13T09:53:56Z", "ms": 1426240435705.593 }, "end": { "local": "2015-03-13T12:41:56+02:00", "utc": "2015-03-13T10:41:56Z", "ms": 1426243315705.593 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-03-14", "window": { "start": { "local": "2015-03-14T11:53:39+02:00", "utc": "2015-03-14T09:53:39Z", "ms": 1426326819349.2656 }, "end": { "local": "2015-03-14T12:41:39+02:00", "utc": "2015-03-14T10:41:39Z", "ms": 1426329699349.2656 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 07:59 on Fri 13 Mar to 07:26 on Sat 14 Mar.", "fact": "2015-03-13T05:58:53Z → 2015-03-14T05:25:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 13th, 11:54–12:42 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 14103 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Soweto, 2015: Friday 13 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": "2015-03-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-13", "confidence": "determinate" } ], "quote": "In Soweto, Śītalāṣṭamī 2015 falls on Friday 13 March. Aṣṭamī runs from 07:59 on Fri 13 Mar to 07:26 on Sat 14 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-03-16", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7304, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-03-16T04:08:25+02:00", "utc": "2015-03-16T02:08:25Z", "ms": 1426471705314.508 }, "end": { "local": "2015-03-17T01:31:53+02:00", "utc": "2015-03-16T23:31:53Z", "ms": 1426548713477.5005 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-16T04:08:25+02:00", "utc": "2015-03-16T02:08:25Z", "ms": 1426471705314.508 }, "end": { "local": "2015-03-17T01:31:53+02:00", "utc": "2015-03-16T23:31:53Z", "ms": 1426548713477.5005 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-03-16", "window": { "start": { "local": "2015-03-16T06:10:09+02:00", "utc": "2015-03-16T04:10:09Z", "ms": 1426479009364.9421 }, "end": { "local": "2015-03-16T06:10:09+02:00", "utc": "2015-03-16T04:10:09Z", "ms": 1426479009364.9421 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-03-17", "window": { "start": { "local": "2015-03-17T06:10:39+02:00", "utc": "2015-03-17T04:10:39Z", "ms": 1426565439313.3179 }, "end": { "local": "2015-03-17T06:10:39+02:00", "utc": "2015-03-17T04:10:39Z", "ms": 1426565439313.3179 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:08 on Mon 16 Mar to 01:32 on Tue 17 Mar.", "fact": "2015-03-16T02:08:25Z → 2015-03-16T23:31:53Z" }, { "step": "kaala", "text": "Sunrise is at 06:10 on the 16th and 06:11 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7304 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Soweto, 2015: Monday 16 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": "2015-03-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-16", "confidence": "determinate" } ], "quote": "In Soweto, Pāpamocanī Ekādaśī 2015 falls on Monday 16 March. Ekādaśī runs from 04:08 on Mon 16 Mar to 01:32 on Tue 17 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-03-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-03-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2152, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-03-17T22:25:31+02:00", "utc": "2015-03-17T20:25:31Z", "ms": 1426623931305.1252 }, "end": { "local": "2015-03-18T18:57:47+02:00", "utc": "2015-03-18T16:57:47Z", "ms": 1426697866961.2903 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-17T22:25:31+02:00", "utc": "2015-03-17T20:25:31Z", "ms": 1426623931305.1252 }, "end": { "local": "2015-03-18T18:57:47+02:00", "utc": "2015-03-18T16:57:47Z", "ms": 1426697866961.2903 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-03-17", "window": { "start": { "local": "2015-03-17T18:22:59+02:00", "utc": "2015-03-17T16:22:59Z", "ms": 1426609378586.4128 }, "end": { "local": "2015-03-17T19:57:24+02:00", "utc": "2015-03-17T17:57:24Z", "ms": 1426615043983.6772 } }, "covered_min": 0, "window_min": 94, "qualifies": false }, { "local_date": "2015-03-18", "window": { "start": { "local": "2015-03-18T18:21:54+02:00", "utc": "2015-03-18T16:21:54Z", "ms": 1426695714472.0486 }, "end": { "local": "2015-03-18T19:56:32+02:00", "utc": "2015-03-18T17:56:32Z", "ms": 1426701392359.999 } }, "covered_min": 36, "window_min": 95, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:26 on Tue 17 Mar to 18:58 on Wed 18 Mar.", "fact": "2015-03-17T20:25:31Z → 2015-03-18T16:57:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:23–19:57 on the 17th, 18:22–19:57 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 94 minutes on the 17th and 36 of 95 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2152 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Wednesday 18 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": "2015-03-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-18", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Wednesday 18 March. Trayodaśī runs from 22:26 on Tue 17 Mar to 18:58 on Wed 18 Mar and covers 36 of 95 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-03-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-03-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17700, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-03-18T18:57:47+02:00", "utc": "2015-03-18T16:57:47Z", "ms": 1426697866961.2903 }, "end": { "local": "2015-03-19T15:18:03+02:00", "utc": "2015-03-19T13:18:03Z", "ms": 1426771083024.1482 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-18T18:57:47+02:00", "utc": "2015-03-18T16:57:47Z", "ms": 1426697866961.2903 }, "end": { "local": "2015-03-19T15:18:03+02:00", "utc": "2015-03-19T13:18:03Z", "ms": 1426771083024.1482 } }, "kaala": "nishita", "days": [ { "local_date": "2015-03-18", "window": { "start": { "local": "2015-03-18T23:52:47+02:00", "utc": "2015-03-18T21:52:47Z", "ms": 1426715566551.8623 }, "end": { "local": "2015-03-19T00:40:47+02:00", "utc": "2015-03-18T22:40:47Z", "ms": 1426718446551.8623 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-03-19", "window": { "start": { "local": "2015-03-19T23:52:29+02:00", "utc": "2015-03-19T21:52:29Z", "ms": 1426801949119.3684 }, "end": { "local": "2015-03-20T00:40:29+02:00", "utc": "2015-03-19T22:40:29Z", "ms": 1426804829119.3684 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:58 on Wed 18 Mar to 15:18 on Thu 19 Mar.", "fact": "2015-03-18T16:57:47Z → 2015-03-19T13:18:03Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:53–00:41 on the 18th, 23:52–00:40 on the 19th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17700 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Wednesday 18 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": "2015-03-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-18", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Wednesday 18 March. Caturdaśī runs from 18:58 on Wed 18 Mar to 15:18 on Thu 19 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-03-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 946, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2015-03-20T11:36:11+02:00", "utc": "2015-03-20T09:36:11Z", "ms": 1426844171167.5781 }, "end": { "local": "2015-03-21T08:02:11+02:00", "utc": "2015-03-21T06:02:11Z", "ms": 1426917731036.7312 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-20T11:36:11+02:00", "utc": "2015-03-20T09:36:11Z", "ms": 1426844171167.5781 }, "end": { "local": "2015-03-21T08:02:11+02:00", "utc": "2015-03-21T06:02:11Z", "ms": 1426917731036.7312 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-03-20", "window": { "start": { "local": "2015-03-20T11:51:57+02:00", "utc": "2015-03-20T09:51:57Z", "ms": 1426845116935.8694 }, "end": { "local": "2015-03-20T12:39:57+02:00", "utc": "2015-03-20T10:39:57Z", "ms": 1426847996935.8694 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-03-21", "window": { "start": { "local": "2015-03-21T11:51:39+02:00", "utc": "2015-03-21T09:51:39Z", "ms": 1426931499314.1821 }, "end": { "local": "2015-03-21T12:39:39+02:00", "utc": "2015-03-21T10:39:39Z", "ms": 1426934379314.1821 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 11:36 on Fri 20 Mar to 08:02 on Sat 21 Mar.", "fact": "2015-03-20T09:36:11Z → 2015-03-21T06:02:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 20th, 11:52–12:40 on the 21st.", "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 20th and 0 of 48 on the 21st.", "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 946 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Soweto, 2015: Friday 20 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-20", "confidence": "determinate" } ], "quote": "In Soweto, Navarātrārambha (Caitra) (Chaitra Navratri) 2015 falls on Friday 20 March. Pratipadā runs from 11:36 on Fri 20 Mar to 08:02 on Sat 21 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25531, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2015-03-22T04:45:51+02:00", "utc": "2015-03-22T02:45:51Z", "ms": 1426992350507.3252 }, "end": { "local": "2015-03-23T01:56:24+02:00", "utc": "2015-03-22T23:56:24Z", "ms": 1427068583833.7993 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-22T04:45:51+02:00", "utc": "2015-03-22T02:45:51Z", "ms": 1426992350507.3252 }, "end": { "local": "2015-03-23T01:56:24+02:00", "utc": "2015-03-22T23:56:24Z", "ms": 1427068583833.7993 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-03-22", "window": { "start": { "local": "2015-03-22T11:51:22+02:00", "utc": "2015-03-22T09:51:22Z", "ms": 1427017881575.8887 }, "end": { "local": "2015-03-22T12:39:22+02:00", "utc": "2015-03-22T10:39:22Z", "ms": 1427020761575.8887 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-03-23", "window": { "start": { "local": "2015-03-23T11:51:04+02:00", "utc": "2015-03-23T09:51:04Z", "ms": 1427104263736.7134 }, "end": { "local": "2015-03-23T12:39:04+02:00", "utc": "2015-03-23T10:39:04Z", "ms": 1427107143736.7134 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 04:46 on Sun 22 Mar to 01:56 on Mon 23 Mar.", "fact": "2015-03-22T02:45:51Z → 2015-03-22T23:56:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 22nd, 11:51–12:39 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25531 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Soweto, 2015: Sunday 22 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-22", "confidence": "determinate" } ], "quote": "In Soweto, Gaurī Tṛtīyā (Gangaur) 2015 falls on Sunday 22 March. Tṛtīyā runs from 04:46 on Sun 22 Mar to 01:56 on Mon 23 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25531, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2015-03-22T04:45:51+02:00", "utc": "2015-03-22T02:45:51Z", "ms": 1426992350507.3252 }, "end": { "local": "2015-03-23T01:56:24+02:00", "utc": "2015-03-22T23:56:24Z", "ms": 1427068583833.7993 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-22T04:45:51+02:00", "utc": "2015-03-22T02:45:51Z", "ms": 1426992350507.3252 }, "end": { "local": "2015-03-23T01:56:24+02:00", "utc": "2015-03-22T23:56:24Z", "ms": 1427068583833.7993 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-03-22", "window": { "start": { "local": "2015-03-22T11:51:22+02:00", "utc": "2015-03-22T09:51:22Z", "ms": 1427017881575.8887 }, "end": { "local": "2015-03-22T12:39:22+02:00", "utc": "2015-03-22T10:39:22Z", "ms": 1427020761575.8887 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-03-23", "window": { "start": { "local": "2015-03-23T11:51:04+02:00", "utc": "2015-03-23T09:51:04Z", "ms": 1427104263736.7134 }, "end": { "local": "2015-03-23T12:39:04+02:00", "utc": "2015-03-23T10:39:04Z", "ms": 1427107143736.7134 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 04:46 on Sun 22 Mar to 01:56 on Mon 23 Mar.", "fact": "2015-03-22T02:45:51Z → 2015-03-22T23:56:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 22nd, 11:51–12:39 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25531 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Soweto, 2015: Sunday 22 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-22", "confidence": "determinate" } ], "quote": "In Soweto, Saubhāgya Śayana Vrata 2015 falls on Sunday 22 March. Tṛtīyā runs from 04:46 on Sun 22 Mar to 01:56 on Mon 23 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-03-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35680, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-03-23T01:56:24+02:00", "utc": "2015-03-22T23:56:24Z", "ms": 1427068583833.7993 }, "end": { "local": "2015-03-23T23:42:05+02:00", "utc": "2015-03-23T21:42:05Z", "ms": 1427146924522.7866 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-23T01:56:24+02:00", "utc": "2015-03-22T23:56:24Z", "ms": 1427068583833.7993 }, "end": { "local": "2015-03-23T23:42:05+02:00", "utc": "2015-03-23T21:42:05Z", "ms": 1427146924522.7866 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-03-23", "window": { "start": { "local": "2015-03-23T11:51:04+02:00", "utc": "2015-03-23T09:51:04Z", "ms": 1427104263736.7134 }, "end": { "local": "2015-03-23T12:39:04+02:00", "utc": "2015-03-23T10:39:04Z", "ms": 1427107143736.7134 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-03-24", "window": { "start": { "local": "2015-03-24T11:50:46+02:00", "utc": "2015-03-24T09:50:46Z", "ms": 1427190645813.287 }, "end": { "local": "2015-03-24T12:38:46+02:00", "utc": "2015-03-24T10:38:46Z", "ms": 1427193525813.287 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:56 on Mon 23 Mar to 23:42 on Mon 23 Mar.", "fact": "2015-03-22T23:56:24Z → 2015-03-23T21:42:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 23rd, 11:51–12:39 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35680 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Monday 23 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-23", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Monday 23 March. Caturthī runs from 01:56 on Mon 23 Mar to 23:42 on Mon 23 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-03-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34246, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2015-03-23T23:42:05+02:00", "utc": "2015-03-23T21:42:05Z", "ms": 1427146924522.7866 }, "end": { "local": "2015-03-24T22:09:31+02:00", "utc": "2015-03-24T20:09:31Z", "ms": 1427227771323.4487 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-23T23:42:05+02:00", "utc": "2015-03-23T21:42:05Z", "ms": 1427146924522.7866 }, "end": { "local": "2015-03-24T22:09:31+02:00", "utc": "2015-03-24T20:09:31Z", "ms": 1427227771323.4487 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-03-23", "window": { "start": { "local": "2015-03-23T11:51:04+02:00", "utc": "2015-03-23T09:51:04Z", "ms": 1427104263736.7134 }, "end": { "local": "2015-03-23T12:39:04+02:00", "utc": "2015-03-23T10:39:04Z", "ms": 1427107143736.7134 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-03-24", "window": { "start": { "local": "2015-03-24T11:50:46+02:00", "utc": "2015-03-24T09:50:46Z", "ms": 1427190645813.287 }, "end": { "local": "2015-03-24T12:38:46+02:00", "utc": "2015-03-24T10:38:46Z", "ms": 1427193525813.287 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 23:42 on Mon 23 Mar to 22:10 on Tue 24 Mar.", "fact": "2015-03-23T21:42:05Z → 2015-03-24T20:09:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 23rd, 11:51–12:39 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "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 34246 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Soweto, 2015: Tuesday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-24", "confidence": "determinate" } ], "quote": "In Soweto, Lakṣmī Pañcamī 2015 falls on Tuesday 24 March. Pañcamī runs from 23:42 on Mon 23 Mar to 22:10 on Tue 24 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31579, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-03-26T21:24:29+02:00", "utc": "2015-03-26T19:24:29Z", "ms": 1427397868845.1548 }, "end": { "local": "2015-03-27T22:11:43+02:00", "utc": "2015-03-27T20:11:43Z", "ms": 1427487103139.0623 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-26T21:24:29+02:00", "utc": "2015-03-26T19:24:29Z", "ms": 1427397868845.1548 }, "end": { "local": "2015-03-27T22:11:43+02:00", "utc": "2015-03-27T20:11:43Z", "ms": 1427487103139.0623 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-03-26", "window": { "start": { "local": "2015-03-26T11:50:10+02:00", "utc": "2015-03-26T09:50:10Z", "ms": 1427363409785.2847 }, "end": { "local": "2015-03-26T12:38:10+02:00", "utc": "2015-03-26T10:38:10Z", "ms": 1427366289785.2847 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-03-27", "window": { "start": { "local": "2015-03-27T11:49:52+02:00", "utc": "2015-03-27T09:49:52Z", "ms": 1427449791718.8308 }, "end": { "local": "2015-03-27T12:37:52+02:00", "utc": "2015-03-27T10:37:52Z", "ms": 1427452671718.8308 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 21:24 on Thu 26 Mar to 22:12 on Fri 27 Mar.", "fact": "2015-03-26T19:24:29Z → 2015-03-27T20:11:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 26th, 11:50–12:38 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31579 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Soweto, 2015: Friday 27 March.", "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": "2015-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-27", "confidence": "determinate" } ], "quote": "In Soweto, Bhavānī Utpatti 2015 falls on Friday 27 March. Aṣṭamī runs from 21:24 on Thu 26 Mar to 22:12 on Fri 27 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34431, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2015-03-27T22:11:43+02:00", "utc": "2015-03-27T20:11:43Z", "ms": 1427487103139.0623 }, "end": { "local": "2015-03-28T23:39:41+02:00", "utc": "2015-03-28T21:39:41Z", "ms": 1427578780628.136 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-27T22:11:43+02:00", "utc": "2015-03-27T20:11:43Z", "ms": 1427487103139.0623 }, "end": { "local": "2015-03-28T23:39:41+02:00", "utc": "2015-03-28T21:39:41Z", "ms": 1427578780628.136 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-03-27", "window": { "start": { "local": "2015-03-27T11:49:52+02:00", "utc": "2015-03-27T09:49:52Z", "ms": 1427449791718.8308 }, "end": { "local": "2015-03-27T12:37:52+02:00", "utc": "2015-03-27T10:37:52Z", "ms": 1427452671718.8308 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-03-28", "window": { "start": { "local": "2015-03-28T11:49:34+02:00", "utc": "2015-03-28T09:49:34Z", "ms": 1427536173644.0593 }, "end": { "local": "2015-03-28T12:37:34+02:00", "utc": "2015-03-28T10:37:34Z", "ms": 1427539053644.0593 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 22:12 on Fri 27 Mar to 23:40 on Sat 28 Mar.", "fact": "2015-03-27T20:11:43Z → 2015-03-28T21:39:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 27th, 11:50–12:38 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34431 s" }, { "step": "ruling", "text": "Rāma Navamī, Soweto, 2015: Saturday 28 March.", "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": "2015-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-28", "confidence": "determinate" } ], "quote": "In Soweto, Rāma Navamī 2015 falls on Saturday 28 March. Navamī runs from 22:12 on Fri 27 Mar to 23:40 on Sat 28 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-03-30", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8026, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-03-30T01:40:17+02:00", "utc": "2015-03-29T23:40:17Z", "ms": 1427672417177.9631 }, "end": { "local": "2015-03-31T04:03:36+02:00", "utc": "2015-03-31T02:03:36Z", "ms": 1427767415950.449 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-03-30T01:40:17+02:00", "utc": "2015-03-29T23:40:17Z", "ms": 1427672417177.9631 }, "end": { "local": "2015-03-31T04:03:36+02:00", "utc": "2015-03-31T02:03:36Z", "ms": 1427767415950.449 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-03-30", "window": { "start": { "local": "2015-03-30T06:16:54+02:00", "utc": "2015-03-30T04:16:54Z", "ms": 1427689014014.3208 }, "end": { "local": "2015-03-30T06:16:54+02:00", "utc": "2015-03-30T04:16:54Z", "ms": 1427689014014.3208 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-03-31", "window": { "start": { "local": "2015-03-31T06:17:22+02:00", "utc": "2015-03-31T04:17:22Z", "ms": 1427775442078.8098 }, "end": { "local": "2015-03-31T06:17:22+02:00", "utc": "2015-03-31T04:17:22Z", "ms": 1427775442078.8098 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:40 on Mon 30 Mar to 04:04 on Tue 31 Mar.", "fact": "2015-03-29T23:40:17Z → 2015-03-31T02:03:36Z" }, { "step": "kaala", "text": "Sunrise is at 06:17 on the 30th and 06:17 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8026 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Soweto, 2015: Monday 30 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": "2015-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-03-30", "confidence": "determinate" } ], "quote": "In Soweto, Kāmadā Ekādaśī 2015 falls on Monday 30 March. Ekādaśī runs from 01:40 on Mon 30 Mar to 04:04 on Tue 31 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-03-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9083, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-04-01T06:39:04+02:00", "utc": "2015-04-01T04:39:04Z", "ms": 1427863143510.7822 }, "end": { "local": "2015-04-02T09:16:41+02:00", "utc": "2015-04-02T07:16:41Z", "ms": 1427959000539.022 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-04-01T06:39:04+02:00", "utc": "2015-04-01T04:39:04Z", "ms": 1427863143510.7822 }, "end": { "local": "2015-04-02T09:16:41+02:00", "utc": "2015-04-02T07:16:41Z", "ms": 1427959000539.022 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-04-01", "window": { "start": { "local": "2015-04-01T11:48:22+02:00", "utc": "2015-04-01T09:48:22Z", "ms": 1427881701680.2944 }, "end": { "local": "2015-04-01T12:36:22+02:00", "utc": "2015-04-01T10:36:22Z", "ms": 1427884581680.2944 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-04-02", "window": { "start": { "local": "2015-04-02T11:48:04+02:00", "utc": "2015-04-02T09:48:04Z", "ms": 1427968083880.183 }, "end": { "local": "2015-04-02T12:36:04+02:00", "utc": "2015-04-02T10:36:04Z", "ms": 1427970963880.183 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:39 on Wed 1 Apr to 09:17 on Thu 2 Apr.", "fact": "2015-04-01T04:39:04Z → 2015-04-02T07:16:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 1st, 11:48–12:36 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9083 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Soweto, 2015: Wednesday 1 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": "2015-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-01", "confidence": "determinate" } ], "quote": "In Soweto, Anaṅga Trayodaśī 2015 falls on Wednesday 1 April. Trayodaśī runs from 06:39 on Wed 1 Apr to 09:17 on Thu 2 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/pradosha-vrata?on=2015-04-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31749, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-04-01T06:39:04+02:00", "utc": "2015-04-01T04:39:04Z", "ms": 1427863143510.7822 }, "end": { "local": "2015-04-02T09:16:41+02:00", "utc": "2015-04-02T07:16:41Z", "ms": 1427959000539.022 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-04-01T06:39:04+02:00", "utc": "2015-04-01T04:39:04Z", "ms": 1427863143510.7822 }, "end": { "local": "2015-04-02T09:16:41+02:00", "utc": "2015-04-02T07:16:41Z", "ms": 1427959000539.022 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-04-01", "window": { "start": { "local": "2015-04-01T18:06:53+02:00", "utc": "2015-04-01T16:06:53Z", "ms": 1427904413259.4497 }, "end": { "local": "2015-04-01T19:44:25+02:00", "utc": "2015-04-01T17:44:25Z", "ms": 1427910264571.0215 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "2015-04-02", "window": { "start": { "local": "2015-04-02T18:05:50+02:00", "utc": "2015-04-02T16:05:50Z", "ms": 1427990749664.1287 }, "end": { "local": "2015-04-02T19:43:33+02:00", "utc": "2015-04-02T17:43:33Z", "ms": 1427996613186.1555 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:39 on Wed 1 Apr to 09:17 on Thu 2 Apr.", "fact": "2015-04-01T04:39:04Z → 2015-04-02T07:16:41Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:44 on the 1st, 18:06–19:44 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 98 of 98 minutes on the 1st and 0 of 98 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 31749 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Wednesday 1 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": "2015-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-01", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Wednesday 1 April. Trayodaśī runs from 06:39 on Wed 1 Apr to 09:17 on Thu 2 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-04-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-03", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 4, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-04-02T09:16:41+02:00", "utc": "2015-04-02T07:16:41Z", "ms": 1427959000539.022 }, "end": { "local": "2015-04-03T11:47:50+02:00", "utc": "2015-04-03T09:47:50Z", "ms": 1428054469733.4604 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-04-02T09:16:41+02:00", "utc": "2015-04-02T07:16:41Z", "ms": 1427959000539.022 }, "end": { "local": "2015-04-03T11:47:50+02:00", "utc": "2015-04-03T09:47:50Z", "ms": 1428054469733.4604 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-04-02", "window": { "start": { "local": "2015-04-02T11:48:04+02:00", "utc": "2015-04-02T09:48:04Z", "ms": 1427968083880.183 }, "end": { "local": "2015-04-02T12:36:04+02:00", "utc": "2015-04-02T10:36:04Z", "ms": 1427970963880.183 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-04-03", "window": { "start": { "local": "2015-04-03T11:47:46+02:00", "utc": "2015-04-03T09:47:46Z", "ms": 1428054466199.912 }, "end": { "local": "2015-04-03T12:35:46+02:00", "utc": "2015-04-03T10:35:46Z", "ms": 1428057346199.912 } }, "covered_min": 0, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:17 on Thu 2 Apr to 11:48 on Fri 3 Apr.", "fact": "2015-04-02T07:16:41Z → 2015-04-03T09:47:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 2nd, 11:48–12:36 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 0 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 4 s < 300 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Soweto, 2015: Friday 3 April.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "vishnu-damanaka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-04-03", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-03", "confidence": "determinate" } ], "quote": "In Soweto, Viṣṇudamanaka Caturdaśī 2015 falls on Friday 3 April. Caturdaśī runs from 09:17 on Thu 2 Apr to 11:48 on Fri 3 Apr and covers 0 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken. It is 0 min 04 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-04", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 4, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-04-03T11:47:50+02:00", "utc": "2015-04-03T09:47:50Z", "ms": 1428054469733.4604 }, "end": { "local": "2015-04-04T14:05:34+02:00", "utc": "2015-04-04T12:05:34Z", "ms": 1428149134403.3533 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2015-04-03T11:47:50+02:00", "utc": "2015-04-03T09:47:50Z", "ms": 1428054469733.4604 }, "end": { "local": "2015-04-04T14:05:34+02:00", "utc": "2015-04-04T12:05:34Z", "ms": 1428149134403.3533 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-04-03", "window": { "start": { "local": "2015-04-03T11:47:46+02:00", "utc": "2015-04-03T09:47:46Z", "ms": 1428054466199.912 }, "end": { "local": "2015-04-03T12:35:46+02:00", "utc": "2015-04-03T10:35:46Z", "ms": 1428057346199.912 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-04-04", "window": { "start": { "local": "2015-04-04T11:47:29+02:00", "utc": "2015-04-04T09:47:29Z", "ms": 1428140848661.3735 }, "end": { "local": "2015-04-04T12:35:29+02:00", "utc": "2015-04-04T10:35:29Z", "ms": 1428143728661.3735 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 11:48 on Fri 3 Apr to 14:06 on Sat 4 Apr.", "fact": "2015-04-03T09:47:50Z → 2015-04-04T12:05:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 3rd, 11:47–12:35 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 4 s < 300 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Soweto, 2015: Saturday 4 April.", "fact": "confidence: boundary (margin)" } ], "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": "2015-04-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-04", "confidence": "determinate" } ], "quote": "In Soweto, Caitrī Pūrṇimā 2015 falls on Saturday 4 April. Pūrṇimā runs from 11:48 on Fri 3 Apr to 14:06 on Sat 4 Apr and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken. It is 0 min 04 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-04-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4649, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-04-07T18:50:30+02:00", "utc": "2015-04-07T16:50:30Z", "ms": 1428425429740.7908 }, "end": { "local": "2015-04-08T19:31:35+02:00", "utc": "2015-04-08T17:31:35Z", "ms": 1428514295254.574 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-07T18:50:30+02:00", "utc": "2015-04-07T16:50:30Z", "ms": 1428425429740.7908 }, "end": { "local": "2015-04-08T19:31:35+02:00", "utc": "2015-04-08T17:31:35Z", "ms": 1428514295254.574 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-04-07", "window": { "start": { "local": "2015-04-07T20:07:59+02:00", "utc": "2015-04-07T18:07:59Z", "ms": 1428430078549.518 }, "end": { "local": "2015-04-07T20:07:59+02:00", "utc": "2015-04-07T18:07:59Z", "ms": 1428430078549.518 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-04-08", "window": { "start": { "local": "2015-04-08T20:53:42+02:00", "utc": "2015-04-08T18:53:42Z", "ms": 1428519221972.316 }, "end": { "local": "2015-04-08T20:53:42+02:00", "utc": "2015-04-08T18:53:42Z", "ms": 1428519221972.316 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:50 on Tue 7 Apr to 19:32 on Wed 8 Apr.", "fact": "2015-04-07T16:50:30Z → 2015-04-08T17:31:35Z" }, { "step": "kaala", "text": "Moonrise is at 20:08 on the 7th and 20:54 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4649 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Tuesday 7 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": "2015-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-07", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Tuesday 7 April. Caturthī runs from 18:50 on Tue 7 Apr to 19:32 on Wed 8 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-04-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13988, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2015-04-14T10:17:05+02:00", "utc": "2015-04-14T08:17:05Z", "ms": 1428999425034.1904 }, "end": { "local": "2015-05-15T07:07:38+02:00", "utc": "2015-05-15T05:07:38Z", "ms": 1431666458431.8691 } }, "span": { "of": "transit", "start": { "local": "2015-04-14T10:17:05+02:00", "utc": "2015-04-14T08:17:05Z", "ms": 1428999425034.1904 }, "end": { "local": "2015-04-14T10:17:05+02:00", "utc": "2015-04-14T08:17:05Z", "ms": 1428999425034.1904 } }, "kaala": "day", "days": [ { "local_date": "2015-04-13", "window": { "start": { "local": "2015-04-13T06:23:28+02:00", "utc": "2015-04-13T04:23:28Z", "ms": 1428899008438.5417 }, "end": { "local": "2015-04-14T06:23:57+02:00", "utc": "2015-04-14T04:23:57Z", "ms": 1428985437201.9517 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "2015-04-14", "window": { "start": { "local": "2015-04-14T06:23:57+02:00", "utc": "2015-04-14T04:23:57Z", "ms": 1428985437201.9517 }, "end": { "local": "2015-04-15T06:24:26+02:00", "utc": "2015-04-15T04:24:26Z", "ms": 1429071866096.793 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 10:17 on Tue 14 Apr.", "fact": "2015-04-14T08:17:05Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:23 on the 13th, and from 06:24 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 13988 s" }, { "step": "ruling", "text": "Vaiśākhī, Soweto, 2015: Tuesday 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": "2015-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2015-04-14", "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": "2015-04-14", "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 Soweto, Vaiśākhī 2015 falls on Tuesday 14 April. The Sun enters Meṣa at 10:17 on Tue 14 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-04-15", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11978, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-04-14T12:32:33+02:00", "utc": "2015-04-14T10:32:33Z", "ms": 1429007552609.3567 }, "end": { "local": "2015-04-15T09:44:04+02:00", "utc": "2015-04-15T07:44:04Z", "ms": 1429083844225.5374 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-14T12:32:33+02:00", "utc": "2015-04-14T10:32:33Z", "ms": 1429007552609.3567 }, "end": { "local": "2015-04-15T09:44:04+02:00", "utc": "2015-04-15T07:44:04Z", "ms": 1429083844225.5374 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-04-14", "window": { "start": { "local": "2015-04-14T06:23:57+02:00", "utc": "2015-04-14T04:23:57Z", "ms": 1428985437201.9517 }, "end": { "local": "2015-04-14T06:23:57+02:00", "utc": "2015-04-14T04:23:57Z", "ms": 1428985437201.9517 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-04-15", "window": { "start": { "local": "2015-04-15T06:24:26+02:00", "utc": "2015-04-15T04:24:26Z", "ms": 1429071866096.793 }, "end": { "local": "2015-04-15T06:24:26+02:00", "utc": "2015-04-15T04:24:26Z", "ms": 1429071866096.793 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:33 on Tue 14 Apr to 09:44 on Wed 15 Apr.", "fact": "2015-04-14T10:32:33Z → 2015-04-15T07:44:04Z" }, { "step": "kaala", "text": "Sunrise is at 06:24 on the 14th and 06:24 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 11978 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Soweto, 2015: Wednesday 15 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": "2015-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-15", "confidence": "determinate" } ], "quote": "In Soweto, Varūthinī Ekādaśī 2015 falls on Wednesday 15 April. Ekādaśī runs from 12:33 on Tue 14 Apr to 09:44 on Wed 15 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-04-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-04-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28299, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-04-16T06:38:48+02:00", "utc": "2015-04-16T04:38:48Z", "ms": 1429159128439.2666 }, "end": { "local": "2015-04-17T03:23:48+02:00", "utc": "2015-04-17T01:23:48Z", "ms": 1429233827626.6528 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-16T06:38:48+02:00", "utc": "2015-04-16T04:38:48Z", "ms": 1429159128439.2666 }, "end": { "local": "2015-04-17T03:23:48+02:00", "utc": "2015-04-17T01:23:48Z", "ms": 1429233827626.6528 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-04-15", "window": { "start": { "local": "2015-04-15T17:52:36+02:00", "utc": "2015-04-15T15:52:36Z", "ms": 1429113156139.2869 }, "end": { "local": "2015-04-15T19:32:55+02:00", "utc": "2015-04-15T17:32:55Z", "ms": 1429119174670.9617 } }, "covered_min": 0, "window_min": 100, "qualifies": false }, { "local_date": "2015-04-16", "window": { "start": { "local": "2015-04-16T17:51:39+02:00", "utc": "2015-04-16T15:51:39Z", "ms": 1429199498604.2747 }, "end": { "local": "2015-04-16T19:32:09+02:00", "utc": "2015-04-16T17:32:09Z", "ms": 1429205528696.2546 } }, "covered_min": 101, "window_min": 101, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:39 on Thu 16 Apr to 03:24 on Fri 17 Apr.", "fact": "2015-04-16T04:38:48Z → 2015-04-17T01:23:48Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:53–19:33 on the 15th, 17:52–19:32 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 100 minutes on the 15th and 101 of 101 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 28299 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Thursday 16 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": "2015-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-16", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Thursday 16 April. Trayodaśī runs from 06:39 on Thu 16 Apr to 03:24 on Fri 17 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-04-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-04-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1360, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-04-17T03:23:48+02:00", "utc": "2015-04-17T01:23:48Z", "ms": 1429233827626.6528 }, "end": { "local": "2015-04-18T00:06:57+02:00", "utc": "2015-04-17T22:06:57Z", "ms": 1429308417223.3777 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-17T03:23:48+02:00", "utc": "2015-04-17T01:23:48Z", "ms": 1429233827626.6528 }, "end": { "local": "2015-04-18T00:06:57+02:00", "utc": "2015-04-17T22:06:57Z", "ms": 1429308417223.3777 } }, "kaala": "nishita", "days": [ { "local_date": "2015-04-16", "window": { "start": { "local": "2015-04-16T23:44:31+02:00", "utc": "2015-04-16T21:44:31Z", "ms": 1429220671449.1992 }, "end": { "local": "2015-04-17T00:32:31+02:00", "utc": "2015-04-16T22:32:31Z", "ms": 1429223551449.1992 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-04-17", "window": { "start": { "local": "2015-04-17T23:44:18+02:00", "utc": "2015-04-17T21:44:18Z", "ms": 1429307057644.956 }, "end": { "local": "2015-04-18T00:32:18+02:00", "utc": "2015-04-17T22:32:18Z", "ms": 1429309937644.956 } }, "covered_min": 23, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:24 on Fri 17 Apr to 00:07 on Sat 18 Apr.", "fact": "2015-04-17T01:23:48Z → 2015-04-17T22:06:57Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 16th, 23:44–00:32 on the 17th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 16th and 23 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1360 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Friday 17 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": "2015-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-17", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Friday 17 April. Caturdaśī runs from 03:24 on Fri 17 Apr to 00:07 on Sat 18 Apr and covers 23 of 48 minutes of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-04-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8119, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2015-04-20T15:32:36+02:00", "utc": "2015-04-20T13:32:36Z", "ms": 1429536755646.397 }, "end": { "local": "2015-04-21T13:35:47+02:00", "utc": "2015-04-21T11:35:47Z", "ms": 1429616147228.6677 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-20T15:32:36+02:00", "utc": "2015-04-20T13:32:36Z", "ms": 1429536755646.397 }, "end": { "local": "2015-04-21T13:35:47+02:00", "utc": "2015-04-21T11:35:47Z", "ms": 1429616147228.6677 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-04-20", "window": { "start": { "local": "2015-04-20T17:47:55+02:00", "utc": "2015-04-20T15:47:55Z", "ms": 1429544874875.5703 }, "end": { "local": "2015-04-20T19:29:11+02:00", "utc": "2015-04-20T17:29:11Z", "ms": 1429550950535.6682 } }, "covered_min": 101, "window_min": 101, "qualifies": true }, { "local_date": "2015-04-21", "window": { "start": { "local": "2015-04-21T17:47:01+02:00", "utc": "2015-04-21T15:47:01Z", "ms": 1429631220642.9463 }, "end": { "local": "2015-04-21T19:28:28+02:00", "utc": "2015-04-21T17:28:28Z", "ms": 1429637307512.6897 } }, "covered_min": 0, "window_min": 101, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 15:33 on Mon 20 Apr to 13:36 on Tue 21 Apr.", "fact": "2015-04-20T13:32:36Z → 2015-04-21T11:35:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:48–19:29 on the 20th, 17:47–19:28 on the 21st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 101 of 101 minutes on the 20th and 0 of 101 on the 21st.", "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 8119 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Soweto, 2015: Monday 20 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-04-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-20", "confidence": "determinate" } ], "quote": "In Soweto, Paraśurāma Jayantī 2015 falls on Monday 20 April. Tṛtīyā runs from 15:33 on Mon 20 Apr to 13:36 on Tue 21 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12112, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2015-04-20T15:32:36+02:00", "utc": "2015-04-20T13:32:36Z", "ms": 1429536755646.397 }, "end": { "local": "2015-04-21T13:35:47+02:00", "utc": "2015-04-21T11:35:47Z", "ms": 1429616147228.6677 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-20T15:32:36+02:00", "utc": "2015-04-20T13:32:36Z", "ms": 1429536755646.397 }, "end": { "local": "2015-04-21T13:35:47+02:00", "utc": "2015-04-21T11:35:47Z", "ms": 1429616147228.6677 } }, "kaala": "purvahna", "days": [ { "local_date": "2015-04-20", "window": { "start": { "local": "2015-04-20T06:26:53+02:00", "utc": "2015-04-20T04:26:53Z", "ms": 1429504012617.1057 }, "end": { "local": "2015-04-20T10:13:53+02:00", "utc": "2015-04-20T08:13:53Z", "ms": 1429517633369.9272 } }, "covered_min": 0, "window_min": 227, "qualifies": false }, { "local_date": "2015-04-21", "window": { "start": { "local": "2015-04-21T06:27:22+02:00", "utc": "2015-04-21T04:27:22Z", "ms": 1429590442326.305 }, "end": { "local": "2015-04-21T10:13:55+02:00", "utc": "2015-04-21T08:13:55Z", "ms": 1429604035098.5188 } }, "covered_min": 227, "window_min": 227, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 15:33 on Mon 20 Apr to 13:36 on Tue 21 Apr.", "fact": "2015-04-20T13:32:36Z → 2015-04-21T11:35:47Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:27–10:14 on the 20th, 06:27–10:14 on the 21st.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 0 of 227 minutes on the 20th and 227 of 227 on the 21st.", "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 12112 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Soweto, 2015: Tuesday 21 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-21", "confidence": "determinate" } ], "quote": "In Soweto, Akṣaya Tṛtīyā 2015 falls on Tuesday 21 April. Tṛtīyā runs from 15:33 on Mon 20 Apr to 13:36 on Tue 21 Apr and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-22", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 328, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2015-04-22T12:19:16+02:00", "utc": "2015-04-22T10:19:16Z", "ms": 1429697955928.3333 }, "end": { "local": "2015-04-23T11:48:16+02:00", "utc": "2015-04-23T09:48:16Z", "ms": 1429782496015.3337 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-22T12:19:16+02:00", "utc": "2015-04-22T10:19:16Z", "ms": 1429697955928.3333 }, "end": { "local": "2015-04-23T11:48:16+02:00", "utc": "2015-04-23T09:48:16Z", "ms": 1429782496015.3337 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-04-22", "window": { "start": { "local": "2015-04-22T11:43:00+02:00", "utc": "2015-04-22T09:43:00Z", "ms": 1429695779647.885 }, "end": { "local": "2015-04-22T12:31:00+02:00", "utc": "2015-04-22T10:31:00Z", "ms": 1429698659647.885 } }, "covered_min": 12, "window_min": 48, "qualifies": true }, { "local_date": "2015-04-23", "window": { "start": { "local": "2015-04-23T11:42:48+02:00", "utc": "2015-04-23T09:42:48Z", "ms": 1429782168245.632 }, "end": { "local": "2015-04-23T12:30:48+02:00", "utc": "2015-04-23T10:30:48Z", "ms": 1429785048245.632 } }, "covered_min": 5, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:19 on Wed 22 Apr to 11:48 on Thu 23 Apr.", "fact": "2015-04-22T10:19:16Z → 2015-04-23T09:48:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 22nd, 11:43–12:31 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 12 of 48 minutes on the 22nd and 5 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "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 328 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Soweto, 2015: Wednesday 22 April.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2015-04-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-22", "confidence": "boundary" } ], "quote": "In Soweto, Śaṅkara Jayantī 2015 falls on Wednesday 22 April. Pañcamī runs from 12:19 on Wed 22 Apr to 11:48 on Thu 23 Apr and covers 12 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 5 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/soweto/festivals/2015/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": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-04-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 704, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-04-21T13:35:47+02:00", "utc": "2015-04-21T11:35:47Z", "ms": 1429616147228.6677 }, "end": { "local": "2015-04-22T12:19:16+02:00", "utc": "2015-04-22T10:19:16Z", "ms": 1429697955928.3333 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-21T13:35:47+02:00", "utc": "2015-04-21T11:35:47Z", "ms": 1429616147228.6677 }, "end": { "local": "2015-04-22T12:19:16+02:00", "utc": "2015-04-22T10:19:16Z", "ms": 1429697955928.3333 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-04-21", "window": { "start": { "local": "2015-04-21T11:43:11+02:00", "utc": "2015-04-21T09:43:11Z", "ms": 1429609391484.6255 }, "end": { "local": "2015-04-21T12:31:11+02:00", "utc": "2015-04-21T10:31:11Z", "ms": 1429612271484.6255 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-04-22", "window": { "start": { "local": "2015-04-22T11:43:00+02:00", "utc": "2015-04-22T09:43:00Z", "ms": 1429695779647.885 }, "end": { "local": "2015-04-22T12:31:00+02:00", "utc": "2015-04-22T10:31:00Z", "ms": 1429698659647.885 } }, "covered_min": 36, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:36 on Tue 21 Apr to 12:19 on Wed 22 Apr.", "fact": "2015-04-21T11:35:47Z → 2015-04-22T10:19:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 21st, 11:43–12:31 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 36 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 704 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Wednesday 22 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": "2015-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-22", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Wednesday 22 April. Caturthī runs from 13:36 on Tue 21 Apr to 12:19 on Wed 22 Apr and covers 36 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-04-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1346, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2015-04-24T12:05:03+02:00", "utc": "2015-04-24T10:05:03Z", "ms": 1429869902930.3418 }, "end": { "local": "2015-04-25T13:08:02+02:00", "utc": "2015-04-25T11:08:02Z", "ms": 1429960081610.5745 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-24T12:05:03+02:00", "utc": "2015-04-24T10:05:03Z", "ms": 1429869902930.3418 }, "end": { "local": "2015-04-25T13:08:02+02:00", "utc": "2015-04-25T11:08:02Z", "ms": 1429960081610.5745 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-04-24", "window": { "start": { "local": "2015-04-24T11:42:37+02:00", "utc": "2015-04-24T09:42:37Z", "ms": 1429868557287.876 }, "end": { "local": "2015-04-24T12:30:37+02:00", "utc": "2015-04-24T10:30:37Z", "ms": 1429871437287.876 } }, "covered_min": 26, "window_min": 48, "qualifies": true }, { "local_date": "2015-04-25", "window": { "start": { "local": "2015-04-25T11:42:27+02:00", "utc": "2015-04-25T09:42:27Z", "ms": 1429954946785.013 }, "end": { "local": "2015-04-25T12:30:27+02:00", "utc": "2015-04-25T10:30:27Z", "ms": 1429957826785.013 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:05 on Fri 24 Apr to 13:08 on Sat 25 Apr.", "fact": "2015-04-24T10:05:03Z → 2015-04-25T11:08:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 24th, 11:42–12:30 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 26 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1346 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Soweto, 2015: Friday 24 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-04-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-24", "confidence": "determinate" } ], "quote": "In Soweto, Gaṅgotpatti (Ganga Saptami) 2015 falls on Friday 24 April. Saptamī runs from 12:05 on Fri 24 Apr to 13:08 on Sat 25 Apr and covers 26 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/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-04-29", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29985, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-04-28T19:36:36+02:00", "utc": "2015-04-28T17:36:36Z", "ms": 1430242595872.6677 }, "end": { "local": "2015-04-29T22:12:11+02:00", "utc": "2015-04-29T20:12:11Z", "ms": 1430338330711.6782 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-28T19:36:36+02:00", "utc": "2015-04-28T17:36:36Z", "ms": 1430242595872.6677 }, "end": { "local": "2015-04-29T22:12:11+02:00", "utc": "2015-04-29T20:12:11Z", "ms": 1430338330711.6782 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-04-29", "window": { "start": { "local": "2015-04-29T06:31:25+02:00", "utc": "2015-04-29T04:31:25Z", "ms": 1430281884574.8665 }, "end": { "local": "2015-04-29T06:31:25+02:00", "utc": "2015-04-29T04:31:25Z", "ms": 1430281884574.8665 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-04-30", "window": { "start": { "local": "2015-04-30T06:31:55+02:00", "utc": "2015-04-30T04:31:55Z", "ms": 1430368315409.1917 }, "end": { "local": "2015-04-30T06:31:55+02:00", "utc": "2015-04-30T04:31:55Z", "ms": 1430368315409.1917 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:37 on Tue 28 Apr to 22:12 on Wed 29 Apr.", "fact": "2015-04-28T17:36:36Z → 2015-04-29T20:12:11Z" }, { "step": "kaala", "text": "Sunrise is at 06:31 on the 29th and 06:32 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 29985 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Soweto, 2015: Wednesday 29 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": "2015-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-29", "confidence": "determinate" } ], "quote": "In Soweto, Mohinī Ekādaśī 2015 falls on Wednesday 29 April. Ekādaśī runs from 19:37 on Tue 28 Apr to 22:12 on Wed 29 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-04-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34941, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2015-04-29T22:12:11+02:00", "utc": "2015-04-29T20:12:11Z", "ms": 1430338330711.6782 }, "end": { "local": "2015-05-01T00:39:06+02:00", "utc": "2015-04-30T22:39:06Z", "ms": 1430433546259.7656 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-29T22:12:11+02:00", "utc": "2015-04-29T20:12:11Z", "ms": 1430338330711.6782 }, "end": { "local": "2015-05-01T00:39:06+02:00", "utc": "2015-04-30T22:39:06Z", "ms": 1430433546259.7656 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-04-29", "window": { "start": { "local": "2015-04-29T11:41:50+02:00", "utc": "2015-04-29T09:41:50Z", "ms": 1430300509536.0317 }, "end": { "local": "2015-04-29T12:29:50+02:00", "utc": "2015-04-29T10:29:50Z", "ms": 1430303389536.0317 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-04-30", "window": { "start": { "local": "2015-04-30T11:41:41+02:00", "utc": "2015-04-30T09:41:41Z", "ms": 1430386901467.6394 }, "end": { "local": "2015-04-30T12:29:41+02:00", "utc": "2015-04-30T10:29:41Z", "ms": 1430389781467.6394 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 22:12 on Wed 29 Apr to 00:39 on Fri 1 May.", "fact": "2015-04-29T20:12:11Z → 2015-04-30T22:39:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 29th, 11:42–12:30 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 34941 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Soweto, 2015: Thursday 30 April.", "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": "2015-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-30", "confidence": "determinate" } ], "quote": "In Soweto, Paraśurāma Dvādaśī 2015 falls on Thursday 30 April. Dvādaśī runs from 22:12 on Wed 29 Apr to 00:39 on Fri 1 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34941, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2015-04-29T22:12:11+02:00", "utc": "2015-04-29T20:12:11Z", "ms": 1430338330711.6782 }, "end": { "local": "2015-05-01T00:39:06+02:00", "utc": "2015-04-30T22:39:06Z", "ms": 1430433546259.7656 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-04-29T22:12:11+02:00", "utc": "2015-04-29T20:12:11Z", "ms": 1430338330711.6782 }, "end": { "local": "2015-05-01T00:39:06+02:00", "utc": "2015-04-30T22:39:06Z", "ms": 1430433546259.7656 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-04-29", "window": { "start": { "local": "2015-04-29T11:41:50+02:00", "utc": "2015-04-29T09:41:50Z", "ms": 1430300509536.0317 }, "end": { "local": "2015-04-29T12:29:50+02:00", "utc": "2015-04-29T10:29:50Z", "ms": 1430303389536.0317 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-04-30", "window": { "start": { "local": "2015-04-30T11:41:41+02:00", "utc": "2015-04-30T09:41:41Z", "ms": 1430386901467.6394 }, "end": { "local": "2015-04-30T12:29:41+02:00", "utc": "2015-04-30T10:29:41Z", "ms": 1430389781467.6394 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 22:12 on Wed 29 Apr to 00:39 on Fri 1 May.", "fact": "2015-04-29T20:12:11Z → 2015-04-30T22:39:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 29th, 11:42–12:30 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 34941 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Soweto, 2015: Thursday 30 April.", "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": "2015-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-04-30", "confidence": "determinate" } ], "quote": "In Soweto, Rukmiṇī Dvādaśī 2015 falls on Thursday 30 April. Dvādaśī runs from 22:12 on Wed 29 Apr to 00:39 on Fri 1 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/pradosha-vrata?on=2015-05-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18995, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-05-01T00:39:06+02:00", "utc": "2015-04-30T22:39:06Z", "ms": 1430433546259.7656 }, "end": { "local": "2015-05-02T02:47:09+02:00", "utc": "2015-05-02T00:47:09Z", "ms": 1430527629448.2705 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-01T00:39:06+02:00", "utc": "2015-04-30T22:39:06Z", "ms": 1430433546259.7656 }, "end": { "local": "2015-05-02T02:47:09+02:00", "utc": "2015-05-02T00:47:09Z", "ms": 1430527629448.2705 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-04-30", "window": { "start": { "local": "2015-04-30T17:39:28+02:00", "utc": "2015-04-30T15:39:28Z", "ms": 1430408367526.0872 }, "end": { "local": "2015-04-30T19:22:31+02:00", "utc": "2015-04-30T17:22:31Z", "ms": 1430414551370.8125 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "2015-05-01", "window": { "start": { "local": "2015-05-01T17:38:41+02:00", "utc": "2015-05-01T15:38:41Z", "ms": 1430494721473.6519 }, "end": { "local": "2015-05-01T19:21:56+02:00", "utc": "2015-05-01T17:21:56Z", "ms": 1430500915601.1091 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:39 on Fri 1 May to 02:47 on Sat 2 May.", "fact": "2015-04-30T22:39:06Z → 2015-05-02T00:47:09Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:23 on the 30th, 17:39–19:22 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 30th and 103 of 103 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18995 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Friday 1 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": "2015-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-01", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Friday 1 May. Trayodaśī runs from 00:39 on Fri 1 May to 02:47 on Sat 2 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-05-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26714, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-05-02T02:47:09+02:00", "utc": "2015-05-02T00:47:09Z", "ms": 1430527629448.2705 }, "end": { "local": "2015-05-03T04:29:23+02:00", "utc": "2015-05-03T02:29:23Z", "ms": 1430620163052.9329 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-02T02:47:09+02:00", "utc": "2015-05-02T00:47:09Z", "ms": 1430527629448.2705 }, "end": { "local": "2015-05-03T04:29:23+02:00", "utc": "2015-05-03T02:29:23Z", "ms": 1430620163052.9329 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-05-01", "window": { "start": { "local": "2015-05-01T17:38:41+02:00", "utc": "2015-05-01T15:38:41Z", "ms": 1430494721473.6519 }, "end": { "local": "2015-05-01T19:21:56+02:00", "utc": "2015-05-01T17:21:56Z", "ms": 1430500915601.1091 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "2015-05-02", "window": { "start": { "local": "2015-05-02T17:37:56+02:00", "utc": "2015-05-02T15:37:56Z", "ms": 1430581076362.364 }, "end": { "local": "2015-05-02T19:21:21+02:00", "utc": "2015-05-02T17:21:21Z", "ms": 1430587280662.1692 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:47 on Sat 2 May to 04:29 on Sun 3 May.", "fact": "2015-05-02T00:47:09Z → 2015-05-03T02:29:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:22 on the 1st, 17:38–19:21 on the 2nd.", "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 103 minutes on the 1st and 103 of 103 on the 2nd.", "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 26714 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Soweto, 2015: Saturday 2 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "nrisimha-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Nrsimha caturdasi (pradosa vyapini — if it occurs on two successive days, the second day is to be observed, special when combined with naksatra 'Svati', yoga 'Siddhi' and 'Saturday')." } ], "not_evaluated": "The row calls the day special with Svātī nakṣatra, Siddhi yoga and a Saturday; none is tested.", "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-02", "confidence": "determinate" } ], "quote": "In Soweto, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2015 falls on Saturday 2 May. Caturdaśī runs from 02:47 on Sat 2 May to 04:29 on Sun 3 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21549, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-05-03T04:29:23+02:00", "utc": "2015-05-03T02:29:23Z", "ms": 1430620163052.9329 }, "end": { "local": "2015-05-04T05:42:05+02:00", "utc": "2015-05-04T03:42:05Z", "ms": 1430710925102.6816 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-03T04:29:23+02:00", "utc": "2015-05-03T02:29:23Z", "ms": 1430620163052.9329 }, "end": { "local": "2015-05-04T05:42:05+02:00", "utc": "2015-05-04T03:42:05Z", "ms": 1430710925102.6816 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-05-03", "window": { "start": { "local": "2015-05-03T11:41:20+02:00", "utc": "2015-05-03T09:41:20Z", "ms": 1430646080412.7505 }, "end": { "local": "2015-05-03T12:29:20+02:00", "utc": "2015-05-03T10:29:20Z", "ms": 1430648960412.7505 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-05-04", "window": { "start": { "local": "2015-05-04T11:41:14+02:00", "utc": "2015-05-04T09:41:14Z", "ms": 1430732474477.4976 }, "end": { "local": "2015-05-04T12:29:14+02:00", "utc": "2015-05-04T10:29:14Z", "ms": 1430735354477.4976 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:29 on Sun 3 May to 05:42 on Mon 4 May.", "fact": "2015-05-03T02:29:23Z → 2015-05-04T03:42:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 3rd, 11:41–12:29 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21549 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Soweto, 2015: Sunday 3 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": "2015-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-03", "confidence": "determinate" } ], "quote": "In Soweto, Buddha Pūrṇimā 2015 falls on Sunday 3 May. Pūrṇimā runs from 04:29 on Sun 3 May to 05:42 on Mon 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21549, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-05-03T04:29:23+02:00", "utc": "2015-05-03T02:29:23Z", "ms": 1430620163052.9329 }, "end": { "local": "2015-05-04T05:42:05+02:00", "utc": "2015-05-04T03:42:05Z", "ms": 1430710925102.6816 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-03T04:29:23+02:00", "utc": "2015-05-03T02:29:23Z", "ms": 1430620163052.9329 }, "end": { "local": "2015-05-04T05:42:05+02:00", "utc": "2015-05-04T03:42:05Z", "ms": 1430710925102.6816 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-05-03", "window": { "start": { "local": "2015-05-03T11:41:20+02:00", "utc": "2015-05-03T09:41:20Z", "ms": 1430646080412.7505 }, "end": { "local": "2015-05-03T12:29:20+02:00", "utc": "2015-05-03T10:29:20Z", "ms": 1430648960412.7505 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-05-04", "window": { "start": { "local": "2015-05-04T11:41:14+02:00", "utc": "2015-05-04T09:41:14Z", "ms": 1430732474477.4976 }, "end": { "local": "2015-05-04T12:29:14+02:00", "utc": "2015-05-04T10:29:14Z", "ms": 1430735354477.4976 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:29 on Sun 3 May to 05:42 on Mon 4 May.", "fact": "2015-05-03T02:29:23Z → 2015-05-04T03:42:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 3rd, 11:41–12:29 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21549 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Soweto, 2015: Sunday 3 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": "2015-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-03", "confidence": "determinate" } ], "quote": "In Soweto, Sampat Gaurī Vrata 2015 falls on Sunday 3 May. Pūrṇimā runs from 04:29 on Sun 3 May to 05:42 on Mon 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-05-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32952, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-05-07T06:21:51+02:00", "utc": "2015-05-07T04:21:51Z", "ms": 1430972510880.8904 }, "end": { "local": "2015-05-08T05:41:44+02:00", "utc": "2015-05-08T03:41:44Z", "ms": 1431056503642.972 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-07T06:21:51+02:00", "utc": "2015-05-07T04:21:51Z", "ms": 1430972510880.8904 }, "end": { "local": "2015-05-08T05:41:44+02:00", "utc": "2015-05-08T03:41:44Z", "ms": 1431056503642.972 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-05-06", "window": { "start": { "local": "2015-05-06T19:39:48+02:00", "utc": "2015-05-06T17:39:48Z", "ms": 1430933987874.0625 }, "end": { "local": "2015-05-06T19:39:48+02:00", "utc": "2015-05-06T17:39:48Z", "ms": 1430933987874.0625 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-05-07", "window": { "start": { "local": "2015-05-07T20:32:32+02:00", "utc": "2015-05-07T18:32:32Z", "ms": 1431023552084.51 }, "end": { "local": "2015-05-07T20:32:32+02:00", "utc": "2015-05-07T18:32:32Z", "ms": 1431023552084.51 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:22 on Thu 7 May to 05:42 on Fri 8 May.", "fact": "2015-05-07T04:21:51Z → 2015-05-08T03:41:44Z" }, { "step": "kaala", "text": "Moonrise is at 19:40 on the 6th and 20:33 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32952 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Thursday 7 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": "2015-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-07", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Thursday 7 May. Caturthī runs from 06:22 on Thu 7 May to 05:42 on Fri 8 May and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-05-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ekadashi?on=2015-05-14", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34834, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-05-13T18:54:57+02:00", "utc": "2015-05-13T16:54:57Z", "ms": 1431536097179.3875 }, "end": { "local": "2015-05-14T16:19:52+02:00", "utc": "2015-05-14T14:19:52Z", "ms": 1431613192023.8672 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-13T18:54:57+02:00", "utc": "2015-05-13T16:54:57Z", "ms": 1431536097179.3875 }, "end": { "local": "2015-05-14T16:19:52+02:00", "utc": "2015-05-14T14:19:52Z", "ms": 1431613192023.8672 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-05-13", "window": { "start": { "local": "2015-05-13T06:38:46+02:00", "utc": "2015-05-13T04:38:46Z", "ms": 1431491925569.8481 }, "end": { "local": "2015-05-13T06:38:46+02:00", "utc": "2015-05-13T04:38:46Z", "ms": 1431491925569.8481 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-05-14", "window": { "start": { "local": "2015-05-14T06:39:18+02:00", "utc": "2015-05-14T04:39:18Z", "ms": 1431578357583.9912 }, "end": { "local": "2015-05-14T06:39:18+02:00", "utc": "2015-05-14T04:39:18Z", "ms": 1431578357583.9912 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:55 on Wed 13 May to 16:20 on Thu 14 May.", "fact": "2015-05-13T16:54:57Z → 2015-05-14T14:19:52Z" }, { "step": "kaala", "text": "Sunrise is at 06:39 on the 13th and 06:39 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 34834 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Soweto, 2015: Thursday 14 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": "2015-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-14", "confidence": "determinate" } ], "quote": "In Soweto, Aparā Ekādaśī 2015 falls on Thursday 14 May. Ekādaśī runs from 18:55 on Wed 13 May to 16:20 on Thu 14 May and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-05-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-05-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13776, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-05-15T13:40:09+02:00", "utc": "2015-05-15T11:40:09Z", "ms": 1431690008695.7078 }, "end": { "local": "2015-05-16T11:01:17+02:00", "utc": "2015-05-16T09:01:17Z", "ms": 1431766877220.331 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-15T13:40:09+02:00", "utc": "2015-05-15T11:40:09Z", "ms": 1431690008695.7078 }, "end": { "local": "2015-05-16T11:01:17+02:00", "utc": "2015-05-16T09:01:17Z", "ms": 1431766877220.331 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-05-15", "window": { "start": { "local": "2015-05-15T17:29:45+02:00", "utc": "2015-05-15T15:29:45Z", "ms": 1431703785142.8054 }, "end": { "local": "2015-05-15T19:15:10+02:00", "utc": "2015-05-15T17:15:10Z", "ms": 1431710110002.6611 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "2015-05-16", "window": { "start": { "local": "2015-05-16T17:29:15+02:00", "utc": "2015-05-16T15:29:15Z", "ms": 1431790155298.5188 }, "end": { "local": "2015-05-16T19:14:48+02:00", "utc": "2015-05-16T17:14:48Z", "ms": 1431796488397.6123 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:40 on Fri 15 May to 11:01 on Sat 16 May.", "fact": "2015-05-15T11:40:09Z → 2015-05-16T09:01:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:30–19:15 on the 15th, 17:29–19:15 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 105 of 105 minutes on the 15th and 0 of 106 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 13776 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Friday 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": "2015-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-15", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Friday 15 May. Trayodaśī runs from 13:40 on Fri 15 May to 11:01 on Sat 16 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-05-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-05-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28847, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-05-16T11:01:17+02:00", "utc": "2015-05-16T09:01:17Z", "ms": 1431766877220.331 }, "end": { "local": "2015-05-17T08:29:51+02:00", "utc": "2015-05-17T06:29:51Z", "ms": 1431844191081.625 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-16T11:01:17+02:00", "utc": "2015-05-16T09:01:17Z", "ms": 1431766877220.331 }, "end": { "local": "2015-05-17T08:29:51+02:00", "utc": "2015-05-17T06:29:51Z", "ms": 1431844191081.625 } }, "kaala": "nishita", "days": [ { "local_date": "2015-05-15", "window": { "start": { "local": "2015-05-15T23:41:03+02:00", "utc": "2015-05-15T21:41:03Z", "ms": 1431726063367.2644 }, "end": { "local": "2015-05-16T00:29:03+02:00", "utc": "2015-05-15T22:29:03Z", "ms": 1431728943367.2644 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-05-16", "window": { "start": { "local": "2015-05-16T23:41:04+02:00", "utc": "2015-05-16T21:41:04Z", "ms": 1431812464420.1196 }, "end": { "local": "2015-05-17T00:29:04+02:00", "utc": "2015-05-16T22:29:04Z", "ms": 1431815344420.1196 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:01 on Sat 16 May to 08:30 on Sun 17 May.", "fact": "2015-05-16T09:01:17Z → 2015-05-17T06:29:51Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:41–00:29 on the 15th, 23:41–00:29 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28847 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Saturday 16 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": "2015-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-16", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Saturday 16 May. Caturdaśī runs from 11:01 on Sat 16 May to 08:30 on Sun 17 May and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-05-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31502, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2015-05-20T02:55:56+02:00", "utc": "2015-05-20T00:55:56Z", "ms": 1432083355896.4631 }, "end": { "local": "2015-05-21T02:09:56+02:00", "utc": "2015-05-21T00:09:56Z", "ms": 1432166996487.9978 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-20T02:55:56+02:00", "utc": "2015-05-20T00:55:56Z", "ms": 1432083355896.4631 }, "end": { "local": "2015-05-21T02:09:56+02:00", "utc": "2015-05-21T00:09:56Z", "ms": 1432166996487.9978 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-05-20", "window": { "start": { "local": "2015-05-20T11:40:58+02:00", "utc": "2015-05-20T09:40:58Z", "ms": 1432114858395.7783 }, "end": { "local": "2015-05-20T12:28:58+02:00", "utc": "2015-05-20T10:28:58Z", "ms": 1432117738395.7783 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-05-21", "window": { "start": { "local": "2015-05-21T11:41:02+02:00", "utc": "2015-05-21T09:41:02Z", "ms": 1432201262244.6047 }, "end": { "local": "2015-05-21T12:29:02+02:00", "utc": "2015-05-21T10:29:02Z", "ms": 1432204142244.6047 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:56 on Wed 20 May to 02:10 on Thu 21 May.", "fact": "2015-05-20T00:55:56Z → 2015-05-21T00:09:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 20th, 11:41–12:29 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31502 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Soweto, 2015: Wednesday 20 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-20", "confidence": "determinate" } ], "quote": "In Soweto, Rambhā Tṛtīyā 2015 falls on Wednesday 20 May. Tṛtīyā runs from 02:56 on Wed 20 May to 02:10 on Thu 21 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-05-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34266, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-05-21T02:09:56+02:00", "utc": "2015-05-21T00:09:56Z", "ms": 1432166996487.9978 }, "end": { "local": "2015-05-22T02:06:25+02:00", "utc": "2015-05-22T00:06:25Z", "ms": 1432253184989.6191 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-21T02:09:56+02:00", "utc": "2015-05-21T00:09:56Z", "ms": 1432166996487.9978 }, "end": { "local": "2015-05-22T02:06:25+02:00", "utc": "2015-05-22T00:06:25Z", "ms": 1432253184989.6191 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-05-21", "window": { "start": { "local": "2015-05-21T11:41:02+02:00", "utc": "2015-05-21T09:41:02Z", "ms": 1432201262244.6047 }, "end": { "local": "2015-05-21T12:29:02+02:00", "utc": "2015-05-21T10:29:02Z", "ms": 1432204142244.6047 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-05-22", "window": { "start": { "local": "2015-05-22T11:41:07+02:00", "utc": "2015-05-22T09:41:07Z", "ms": 1432287666616.2122 }, "end": { "local": "2015-05-22T12:29:07+02:00", "utc": "2015-05-22T10:29:07Z", "ms": 1432290546616.2122 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:10 on Thu 21 May to 02:06 on Fri 22 May.", "fact": "2015-05-21T00:09:56Z → 2015-05-22T00:06:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 21st, 11:41–12:29 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34266 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Thursday 21 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": "2015-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-21", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Thursday 21 May. Caturthī runs from 02:10 on Thu 21 May to 02:06 on Fri 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-05-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27034, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2015-05-23T02:47:22+02:00", "utc": "2015-05-23T00:47:22Z", "ms": 1432342042423.8088 }, "end": { "local": "2015-05-24T04:10:43+02:00", "utc": "2015-05-24T02:10:43Z", "ms": 1432433442547.526 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-23T02:47:22+02:00", "utc": "2015-05-23T00:47:22Z", "ms": 1432342042423.8088 }, "end": { "local": "2015-05-24T04:10:43+02:00", "utc": "2015-05-24T02:10:43Z", "ms": 1432433442547.526 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-05-23", "window": { "start": { "local": "2015-05-23T11:41:11+02:00", "utc": "2015-05-23T09:41:11Z", "ms": 1432374071499.7766 }, "end": { "local": "2015-05-23T12:29:11+02:00", "utc": "2015-05-23T10:29:11Z", "ms": 1432376951499.7766 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-05-24", "window": { "start": { "local": "2015-05-24T11:41:17+02:00", "utc": "2015-05-24T09:41:17Z", "ms": 1432460476884.4814 }, "end": { "local": "2015-05-24T12:29:17+02:00", "utc": "2015-05-24T10:29:17Z", "ms": 1432463356884.4814 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:47 on Sat 23 May to 04:11 on Sun 24 May.", "fact": "2015-05-23T00:47:22Z → 2015-05-24T02:10:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 23rd, 11:41–12:29 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27034 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Soweto, 2015: Saturday 23 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-23", "confidence": "determinate" } ], "quote": "In Soweto, Araṇya Gaurī Vrata 2015 falls on Saturday 23 May. Ṣaṣṭhī runs from 02:47 on Sat 23 May to 04:11 on Sun 24 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27034, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2015-05-23T02:47:22+02:00", "utc": "2015-05-23T00:47:22Z", "ms": 1432342042423.8088 }, "end": { "local": "2015-05-24T04:10:43+02:00", "utc": "2015-05-24T02:10:43Z", "ms": 1432433442547.526 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-23T02:47:22+02:00", "utc": "2015-05-23T00:47:22Z", "ms": 1432342042423.8088 }, "end": { "local": "2015-05-24T04:10:43+02:00", "utc": "2015-05-24T02:10:43Z", "ms": 1432433442547.526 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-05-23", "window": { "start": { "local": "2015-05-23T11:41:11+02:00", "utc": "2015-05-23T09:41:11Z", "ms": 1432374071499.7766 }, "end": { "local": "2015-05-23T12:29:11+02:00", "utc": "2015-05-23T10:29:11Z", "ms": 1432376951499.7766 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-05-24", "window": { "start": { "local": "2015-05-24T11:41:17+02:00", "utc": "2015-05-24T09:41:17Z", "ms": 1432460476884.4814 }, "end": { "local": "2015-05-24T12:29:17+02:00", "utc": "2015-05-24T10:29:17Z", "ms": 1432463356884.4814 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:47 on Sat 23 May to 04:11 on Sun 24 May.", "fact": "2015-05-23T00:47:22Z → 2015-05-24T02:10:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 23rd, 11:41–12:29 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27034 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Soweto, 2015: Saturday 23 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-23", "confidence": "determinate" } ], "quote": "In Soweto, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2015 falls on Saturday 23 May. Ṣaṣṭhī runs from 02:47 on Sat 23 May to 04:11 on Sun 24 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-05-29", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24282, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-05-28T13:31:17+02:00", "utc": "2015-05-28T11:31:17Z", "ms": 1432812676586.656 }, "end": { "local": "2015-05-29T15:37:38+02:00", "utc": "2015-05-29T13:37:38Z", "ms": 1432906657582.684 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-28T13:31:17+02:00", "utc": "2015-05-28T11:31:17Z", "ms": 1432812676586.656 }, "end": { "local": "2015-05-29T15:37:38+02:00", "utc": "2015-05-29T13:37:38Z", "ms": 1432906657582.684 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-05-28", "window": { "start": { "local": "2015-05-28T06:46:35+02:00", "utc": "2015-05-28T04:46:35Z", "ms": 1432788394826.8994 }, "end": { "local": "2015-05-28T06:46:35+02:00", "utc": "2015-05-28T04:46:35Z", "ms": 1432788394826.8994 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-05-29", "window": { "start": { "local": "2015-05-29T06:47:04+02:00", "utc": "2015-05-29T04:47:04Z", "ms": 1432874824259.9324 }, "end": { "local": "2015-05-29T06:47:04+02:00", "utc": "2015-05-29T04:47:04Z", "ms": 1432874824259.9324 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:31 on Thu 28 May to 15:38 on Fri 29 May.", "fact": "2015-05-28T11:31:17Z → 2015-05-29T13:37:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:47 on the 28th and 06:47 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24282 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Soweto, 2015: Friday 29 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": "2015-05-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-29", "confidence": "determinate" } ], "quote": "In Soweto, Nirjalā Ekādaśī 2015 falls on Friday 29 May. Ekādaśī runs from 13:31 on Thu 28 May to 15:38 on Fri 29 May and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-05-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11267, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2015-05-29T15:37:38+02:00", "utc": "2015-05-29T13:37:38Z", "ms": 1432906657582.684 }, "end": { "local": "2015-05-30T17:13:30+02:00", "utc": "2015-05-30T15:13:30Z", "ms": 1432998810108.7864 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-29T15:37:38+02:00", "utc": "2015-05-29T13:37:38Z", "ms": 1432906657582.684 }, "end": { "local": "2015-05-30T17:13:30+02:00", "utc": "2015-05-30T15:13:30Z", "ms": 1432998810108.7864 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-05-29", "window": { "start": { "local": "2015-05-29T11:41:51+02:00", "utc": "2015-05-29T09:41:51Z", "ms": 1432892510936.9038 }, "end": { "local": "2015-05-29T12:29:51+02:00", "utc": "2015-05-29T10:29:51Z", "ms": 1432895390936.9038 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-05-30", "window": { "start": { "local": "2015-05-30T11:41:59+02:00", "utc": "2015-05-30T09:41:59Z", "ms": 1432978919092.4514 }, "end": { "local": "2015-05-30T12:29:59+02:00", "utc": "2015-05-30T10:29:59Z", "ms": 1432981799092.4514 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 15:38 on Fri 29 May to 17:14 on Sat 30 May.", "fact": "2015-05-29T13:37:38Z → 2015-05-30T15:13:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 29th, 11:42–12:30 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11267 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Soweto, 2015: Saturday 30 May.", "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": "2015-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-30", "confidence": "determinate" } ], "quote": "In Soweto, Śrī Rāma Dvādaśī 2015 falls on Saturday 30 May. Dvādaśī runs from 15:38 on Fri 29 May to 17:14 on Sat 30 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/pradosha-vrata?on=2015-05-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-05-30", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 655, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-05-30T17:13:30+02:00", "utc": "2015-05-30T15:13:30Z", "ms": 1432998810108.7864 }, "end": { "local": "2015-05-31T18:12:53+02:00", "utc": "2015-05-31T16:12:53Z", "ms": 1433088773463.7188 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-05-30T17:13:30+02:00", "utc": "2015-05-30T15:13:30Z", "ms": 1432998810108.7864 }, "end": { "local": "2015-05-31T18:12:53+02:00", "utc": "2015-05-31T16:12:53Z", "ms": 1433088773463.7188 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-05-30", "window": { "start": { "local": "2015-05-30T17:24:25+02:00", "utc": "2015-05-30T15:24:25Z", "ms": 1432999464867.0842 }, "end": { "local": "2015-05-30T19:11:34+02:00", "utc": "2015-05-30T17:11:34Z", "ms": 1433005893814.907 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "2015-05-31", "window": { "start": { "local": "2015-05-31T17:24:13+02:00", "utc": "2015-05-31T15:24:13Z", "ms": 1433085853361.1006 }, "end": { "local": "2015-05-31T19:11:28+02:00", "utc": "2015-05-31T17:11:28Z", "ms": 1433092287607.496 } }, "covered_min": 49, "window_min": 107, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:14 on Sat 30 May to 18:13 on Sun 31 May.", "fact": "2015-05-30T15:13:30Z → 2015-05-31T16:12:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:12 on the 30th, 17:24–19:11 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 107 of 107 minutes on the 30th and 49 of 107 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 655 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Saturday 30 May.", "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": "2015-05-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-05-30", "confidence": "boundary" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Saturday 30 May. Trayodaśī runs from 17:14 on Sat 30 May to 18:13 on Sun 31 May and covers all of pradoṣa that evening. It also reaches the next evening for 49 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/soweto/festivals/2015/pradosha-vrata?on=2015-05-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-06-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2235, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-06-01T18:34:07+02:00", "utc": "2015-06-01T16:34:07Z", "ms": 1433176446987.3918 }, "end": { "local": "2015-06-02T18:19:02+02:00", "utc": "2015-06-02T16:19:02Z", "ms": 1433261941872.9294 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2015-06-01T18:34:07+02:00", "utc": "2015-06-01T16:34:07Z", "ms": 1433176446987.3918 }, "end": { "local": "2015-06-02T18:19:02+02:00", "utc": "2015-06-02T16:19:02Z", "ms": 1433261941872.9294 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-06-01", "window": { "start": { "local": "2015-06-01T17:24:03+02:00", "utc": "2015-06-01T15:24:03Z", "ms": 1433172243095.4714 }, "end": { "local": "2015-06-01T19:11:22+02:00", "utc": "2015-06-01T17:11:22Z", "ms": 1433178682415.1543 } }, "covered_min": 37, "window_min": 107, "qualifies": true }, { "local_date": "2015-06-02", "window": { "start": { "local": "2015-06-02T17:23:54+02:00", "utc": "2015-06-02T15:23:54Z", "ms": 1433258634069.7031 }, "end": { "local": "2015-06-02T19:11:18+02:00", "utc": "2015-06-02T17:11:18Z", "ms": 1433265078234.2961 } }, "covered_min": 55, "window_min": 107, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:34 on Mon 1 Jun to 18:19 on Tue 2 Jun.", "fact": "2015-06-01T16:34:07Z → 2015-06-02T16:19:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:11 on the 1st, 17:24–19:11 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 37 of 107 minutes on the 1st and 55 of 107 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both evenings qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 2235 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Soweto, 2015: Monday 1 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": "2015-06-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-06-01", "confidence": "determinate" } ], "quote": "In Soweto, Vaṭa Sāvitrī Vrata 2015 falls on Monday 1 June. Pūrṇimā runs from 18:34 on Mon 1 Jun to 18:19 on Tue 2 Jun and covers 37 of 107 minutes of pradoṣa that evening. It also reaches the next evening for 55 minutes; by the rule the first evening is taken.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-06-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20173, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-06-05T14:44:32+02:00", "utc": "2015-06-05T12:44:32Z", "ms": 1433508271520.3594 }, "end": { "local": "2015-06-06T12:55:58+02:00", "utc": "2015-06-06T10:55:58Z", "ms": 1433588158265.0632 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-06-05T14:44:32+02:00", "utc": "2015-06-05T12:44:32Z", "ms": 1433508271520.3594 }, "end": { "local": "2015-06-06T12:55:58+02:00", "utc": "2015-06-06T10:55:58Z", "ms": 1433588158265.0632 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-06-05", "window": { "start": { "local": "2015-06-05T20:20:44+02:00", "utc": "2015-06-05T18:20:44Z", "ms": 1433528444086.3877 }, "end": { "local": "2015-06-05T20:20:44+02:00", "utc": "2015-06-05T18:20:44Z", "ms": 1433528444086.3877 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-06-06", "window": { "start": { "local": "2015-06-06T21:21:25+02:00", "utc": "2015-06-06T19:21:25Z", "ms": 1433618484510.225 }, "end": { "local": "2015-06-06T21:21:25+02:00", "utc": "2015-06-06T19:21:25Z", "ms": 1433618484510.225 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:45 on Fri 5 Jun to 12:56 on Sat 6 Jun.", "fact": "2015-06-05T12:44:32Z → 2015-06-06T10:55:58Z" }, { "step": "kaala", "text": "Moonrise is at 20:21 on the 5th and 21:21 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 5th and is not on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20173 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Friday 5 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": "2015-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-06-05", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Friday 5 June. Caturthī runs from 14:45 on Fri 5 Jun to 12:56 on Sat 6 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-06-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ekadashi?on=2015-06-12", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-06-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23436, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-06-12T00:22:30+02:00", "utc": "2015-06-11T22:22:30Z", "ms": 1434061349505.0798 }, "end": { "local": "2015-06-12T22:19:49+02:00", "utc": "2015-06-12T20:19:49Z", "ms": 1434140389399.486 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-06-12T00:22:30+02:00", "utc": "2015-06-11T22:22:30Z", "ms": 1434061349505.0798 }, "end": { "local": "2015-06-12T22:19:49+02:00", "utc": "2015-06-12T20:19:49Z", "ms": 1434140389399.486 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-06-12", "window": { "start": { "local": "2015-06-12T06:53:06+02:00", "utc": "2015-06-12T04:53:06Z", "ms": 1434084785699.9014 }, "end": { "local": "2015-06-12T06:53:06+02:00", "utc": "2015-06-12T04:53:06Z", "ms": 1434084785699.9014 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-06-13", "window": { "start": { "local": "2015-06-13T06:53:27+02:00", "utc": "2015-06-13T04:53:27Z", "ms": 1434171206870.4983 }, "end": { "local": "2015-06-13T06:53:27+02:00", "utc": "2015-06-13T04:53:27Z", "ms": 1434171206870.4983 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:22 on Fri 12 Jun to 22:20 on Fri 12 Jun.", "fact": "2015-06-11T22:22:30Z → 2015-06-12T20:19:49Z" }, { "step": "kaala", "text": "Sunrise is at 06:53 on the 12th and 06:53 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23436 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Soweto, 2015: Friday 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": "2015-06-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-06-12", "confidence": "determinate" } ], "quote": "In Soweto, Yoginī Ekādaśī 2015 falls on Friday 12 June. Ekādaśī runs from 00:22 on Fri 12 Jun to 22:20 on Fri 12 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-06-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-06-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1935, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-06-13T20:24:06+02:00", "utc": "2015-06-13T18:24:06Z", "ms": 1434219845755.0984 }, "end": { "local": "2015-06-14T18:39:29+02:00", "utc": "2015-06-14T16:39:29Z", "ms": 1434299969134.886 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-06-13T20:24:06+02:00", "utc": "2015-06-13T18:24:06Z", "ms": 1434219845755.0984 }, "end": { "local": "2015-06-14T18:39:29+02:00", "utc": "2015-06-14T16:39:29Z", "ms": 1434299969134.886 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-06-13", "window": { "start": { "local": "2015-06-13T17:23:35+02:00", "utc": "2015-06-13T15:23:35Z", "ms": 1434209015442.4119 }, "end": { "local": "2015-06-13T19:11:37+02:00", "utc": "2015-06-13T17:11:37Z", "ms": 1434215497019.275 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2015-06-14", "window": { "start": { "local": "2015-06-14T17:23:41+02:00", "utc": "2015-06-14T15:23:41Z", "ms": 1434295420821.3386 }, "end": { "local": "2015-06-14T19:11:44+02:00", "utc": "2015-06-14T17:11:44Z", "ms": 1434301904293.5764 } }, "covered_min": 76, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:24 on Sat 13 Jun to 18:39 on Sun 14 Jun.", "fact": "2015-06-13T18:24:06Z → 2015-06-14T16:39:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:12 on the 13th, 17:24–19:12 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 108 minutes on the 13th and 76 of 108 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1935 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Sunday 14 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": "2015-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-06-14", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Sunday 14 June. Trayodaśī runs from 20:24 on Sat 13 Jun to 18:39 on Sun 14 Jun and covers 76 of 108 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-06-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-06-14", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18325, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-06-14T18:39:29+02:00", "utc": "2015-06-14T16:39:29Z", "ms": 1434299969134.886 }, "end": { "local": "2015-06-15T17:11:14+02:00", "utc": "2015-06-15T15:11:14Z", "ms": 1434381074279.481 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-06-14T18:39:29+02:00", "utc": "2015-06-14T16:39:29Z", "ms": 1434299969134.886 }, "end": { "local": "2015-06-15T17:11:14+02:00", "utc": "2015-06-15T15:11:14Z", "ms": 1434381074279.481 } }, "kaala": "nishita", "days": [ { "local_date": "2015-06-14", "window": { "start": { "local": "2015-06-14T23:44:54+02:00", "utc": "2015-06-14T21:44:54Z", "ms": 1434318293842.2305 }, "end": { "local": "2015-06-15T00:32:54+02:00", "utc": "2015-06-14T22:32:54Z", "ms": 1434321173842.2305 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-06-15", "window": { "start": { "local": "2015-06-15T23:45:06+02:00", "utc": "2015-06-15T21:45:06Z", "ms": 1434404706462.276 }, "end": { "local": "2015-06-16T00:33:06+02:00", "utc": "2015-06-15T22:33:06Z", "ms": 1434407586462.276 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:39 on Sun 14 Jun to 17:11 on Mon 15 Jun.", "fact": "2015-06-14T16:39:29Z → 2015-06-15T15:11:14Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 14th, 23:45–00:33 on the 15th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18325 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Sunday 14 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": "2015-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-06-14", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Sunday 14 June. Caturdaśī runs from 18:39 on Sun 14 Jun to 17:11 on Mon 15 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-06-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-06-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12320, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-06-19T15:59:10+02:00", "utc": "2015-06-19T13:59:10Z", "ms": 1434722349928.7256 }, "end": { "local": "2015-06-20T17:12:14+02:00", "utc": "2015-06-20T15:12:14Z", "ms": 1434813134347.2307 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-06-19T15:59:10+02:00", "utc": "2015-06-19T13:59:10Z", "ms": 1434722349928.7256 }, "end": { "local": "2015-06-20T17:12:14+02:00", "utc": "2015-06-20T15:12:14Z", "ms": 1434813134347.2307 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-06-19", "window": { "start": { "local": "2015-06-19T11:45:50+02:00", "utc": "2015-06-19T09:45:50Z", "ms": 1434707150171.8328 }, "end": { "local": "2015-06-19T12:33:50+02:00", "utc": "2015-06-19T10:33:50Z", "ms": 1434710030171.8328 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-06-20", "window": { "start": { "local": "2015-06-20T11:46:04+02:00", "utc": "2015-06-20T09:46:04Z", "ms": 1434793563538.448 }, "end": { "local": "2015-06-20T12:34:04+02:00", "utc": "2015-06-20T10:34:04Z", "ms": 1434796443538.448 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:59 on Fri 19 Jun to 17:12 on Sat 20 Jun.", "fact": "2015-06-19T13:59:10Z → 2015-06-20T15:12:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 19th, 11:46–12:34 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12320 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Saturday 20 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": "2015-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-06-20", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Saturday 20 June. Caturthī runs from 15:59 on Fri 19 Jun to 17:12 on Sat 20 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-06-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ekadashi?on=2015-06-28", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1089, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-06-27T06:12:16+02:00", "utc": "2015-06-27T04:12:16Z", "ms": 1435378335914.4087 }, "end": { "local": "2015-06-28T07:15:04+02:00", "utc": "2015-06-28T05:15:04Z", "ms": 1435468503971.6235 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-06-27T06:12:16+02:00", "utc": "2015-06-27T04:12:16Z", "ms": 1435378335914.4087 }, "end": { "local": "2015-06-28T07:15:04+02:00", "utc": "2015-06-28T05:15:04Z", "ms": 1435468503971.6235 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-06-27", "window": { "start": { "local": "2015-06-27T06:56:48+02:00", "utc": "2015-06-27T04:56:48Z", "ms": 1435381008340.054 }, "end": { "local": "2015-06-27T06:56:48+02:00", "utc": "2015-06-27T04:56:48Z", "ms": 1435381008340.054 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-06-28", "window": { "start": { "local": "2015-06-28T06:56:55+02:00", "utc": "2015-06-28T04:56:55Z", "ms": 1435467414882.8892 }, "end": { "local": "2015-06-28T06:56:55+02:00", "utc": "2015-06-28T04:56:55Z", "ms": 1435467414882.8892 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:12 on Sat 27 Jun to 07:15 on Sun 28 Jun.", "fact": "2015-06-27T04:12:16Z → 2015-06-28T05:15:04Z" }, { "step": "kaala", "text": "Sunrise is at 06:57 on the 27th and 06:57 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both sunrises qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1089 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Soweto, 2015: Sunday 28 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": "2015-06-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-06-28", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Ekādaśī 2015 falls on Sunday 28 June. Ekādaśī runs from 06:12 on Sat 27 Jun to 07:15 on Sun 28 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-06-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-06-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-06-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35624, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-06-29T07:33:16+02:00", "utc": "2015-06-29T05:33:16Z", "ms": 1435555996421.81 }, "end": { "local": "2015-06-30T07:07:02+02:00", "utc": "2015-06-30T05:07:02Z", "ms": 1435640822379.7358 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-06-29T07:33:16+02:00", "utc": "2015-06-29T05:33:16Z", "ms": 1435555996421.81 }, "end": { "local": "2015-06-30T07:07:02+02:00", "utc": "2015-06-30T05:07:02Z", "ms": 1435640822379.7358 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-06-29", "window": { "start": { "local": "2015-06-29T17:27:00+02:00", "utc": "2015-06-29T15:27:00Z", "ms": 1435591619999.885 }, "end": { "local": "2015-06-29T19:15:01+02:00", "utc": "2015-06-29T17:15:01Z", "ms": 1435598100597.336 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "2015-06-30", "window": { "start": { "local": "2015-06-30T17:27:20+02:00", "utc": "2015-06-30T15:27:20Z", "ms": 1435678040026.3838 }, "end": { "local": "2015-06-30T19:15:18+02:00", "utc": "2015-06-30T17:15:18Z", "ms": 1435684518224.0615 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:33 on Mon 29 Jun to 07:07 on Tue 30 Jun.", "fact": "2015-06-29T05:33:16Z → 2015-06-30T05:07:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:27–19:15 on the 29th, 17:27–19:15 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 108 of 108 minutes on the 29th and 0 of 108 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 35624 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Monday 29 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": "2015-06-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-06-29", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Monday 29 June. Trayodaśī runs from 07:33 on Mon 29 Jun to 07:07 on Tue 30 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-06-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-07-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-04", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3633, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-07-04T21:14:15+02:00", "utc": "2015-07-04T19:14:15Z", "ms": 1436037255459.6545 }, "end": { "local": "2015-07-05T18:37:43+02:00", "utc": "2015-07-05T16:37:43Z", "ms": 1436114262700.06 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-04T21:14:15+02:00", "utc": "2015-07-04T19:14:15Z", "ms": 1436037255459.6545 }, "end": { "local": "2015-07-05T18:37:43+02:00", "utc": "2015-07-05T16:37:43Z", "ms": 1436114262700.06 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-07-04", "window": { "start": { "local": "2015-07-04T20:13:43+02:00", "utc": "2015-07-04T18:13:43Z", "ms": 1436033622551.4468 }, "end": { "local": "2015-07-04T20:13:43+02:00", "utc": "2015-07-04T18:13:43Z", "ms": 1436033622551.4468 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-07-05", "window": { "start": { "local": "2015-07-05T21:16:44+02:00", "utc": "2015-07-05T19:16:44Z", "ms": 1436123804063.3472 }, "end": { "local": "2015-07-05T21:16:44+02:00", "utc": "2015-07-05T19:16:44Z", "ms": 1436123804063.3472 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:14 on Sat 4 Jul to 18:38 on Sun 5 Jul.", "fact": "2015-07-04T19:14:15Z → 2015-07-05T16:37:43Z" }, { "step": "kaala", "text": "Moonrise is at 20:14 on the 4th and 21:17 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 3633 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Saturday 4 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": "2015-07-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-04", "confidence": "boundary" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Saturday 4 July. Caturthī runs from 21:14 on Sat 4 Jul to 18:38 on Sun 5 Jul, and is current at moonrise on neither day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-07-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ekadashi?on=2015-07-11", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2910, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-07-11T06:08:00+02:00", "utc": "2015-07-11T04:08:00Z", "ms": 1436587679615.4001 }, "end": { "local": "2015-07-12T04:53:15+02:00", "utc": "2015-07-12T02:53:15Z", "ms": 1436669594683.6294 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-11T06:08:00+02:00", "utc": "2015-07-11T04:08:00Z", "ms": 1436587679615.4001 }, "end": { "local": "2015-07-12T04:53:15+02:00", "utc": "2015-07-12T02:53:15Z", "ms": 1436669594683.6294 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-07-11", "window": { "start": { "local": "2015-07-11T06:56:30+02:00", "utc": "2015-07-11T04:56:30Z", "ms": 1436590589707.9888 }, "end": { "local": "2015-07-11T06:56:30+02:00", "utc": "2015-07-11T04:56:30Z", "ms": 1436590589707.9888 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-07-12", "window": { "start": { "local": "2015-07-12T06:56:19+02:00", "utc": "2015-07-12T04:56:19Z", "ms": 1436676979167.7737 }, "end": { "local": "2015-07-12T06:56:19+02:00", "utc": "2015-07-12T04:56:19Z", "ms": 1436676979167.7737 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:08 on Sat 11 Jul to 04:53 on Sun 12 Jul.", "fact": "2015-07-11T04:08:00Z → 2015-07-12T02:53:15Z" }, { "step": "kaala", "text": "Sunrise is at 06:56 on the 11th and 06:56 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 2910 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Soweto, 2015: Saturday 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": "2015-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-11", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Ekādaśī 2015 falls on Saturday 11 July. Ekādaśī runs from 06:08 on Sat 11 Jul to 04:53 on Sun 12 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-07-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-07-13", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28863, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-07-13T03:56:38+02:00", "utc": "2015-07-13T01:56:38Z", "ms": 1436752597688.2615 }, "end": { "local": "2015-07-14T03:20:44+02:00", "utc": "2015-07-14T01:20:44Z", "ms": 1436836844045.2988 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-13T03:56:38+02:00", "utc": "2015-07-13T01:56:38Z", "ms": 1436752597688.2615 }, "end": { "local": "2015-07-14T03:20:44+02:00", "utc": "2015-07-14T01:20:44Z", "ms": 1436836844045.2988 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-07-12", "window": { "start": { "local": "2015-07-12T17:32:07+02:00", "utc": "2015-07-12T15:32:07Z", "ms": 1436715126929.717 }, "end": { "local": "2015-07-12T19:19:19+02:00", "utc": "2015-07-12T17:19:19Z", "ms": 1436721558986.4517 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "2015-07-13", "window": { "start": { "local": "2015-07-13T17:32:34+02:00", "utc": "2015-07-13T15:32:34Z", "ms": 1436801554078.825 }, "end": { "local": "2015-07-13T19:19:41+02:00", "utc": "2015-07-13T17:19:41Z", "ms": 1436807980770.2803 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:57 on Mon 13 Jul to 03:21 on Tue 14 Jul.", "fact": "2015-07-13T01:56:38Z → 2015-07-14T01:20:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:32–19:19 on the 12th, 17:33–19:20 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 107 minutes on the 12th and 107 of 107 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 28863 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Monday 13 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": "2015-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-13", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Monday 13 July. Trayodaśī runs from 03:57 on Mon 13 Jul to 03:21 on Tue 14 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-07-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-07-14", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9028, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-07-14T03:20:44+02:00", "utc": "2015-07-14T01:20:44Z", "ms": 1436836844045.2988 }, "end": { "local": "2015-07-15T03:08:49+02:00", "utc": "2015-07-15T01:08:49Z", "ms": 1436922529041.0635 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-14T03:20:44+02:00", "utc": "2015-07-14T01:20:44Z", "ms": 1436836844045.2988 }, "end": { "local": "2015-07-15T03:08:49+02:00", "utc": "2015-07-15T01:08:49Z", "ms": 1436922529041.0635 } }, "kaala": "nishita", "days": [ { "local_date": "2015-07-13", "window": { "start": { "local": "2015-07-13T23:50:14+02:00", "utc": "2015-07-13T21:50:14Z", "ms": 1436824214171.7822 }, "end": { "local": "2015-07-14T00:38:14+02:00", "utc": "2015-07-13T22:38:14Z", "ms": 1436827094171.7822 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-07-14", "window": { "start": { "local": "2015-07-14T23:50:21+02:00", "utc": "2015-07-14T21:50:21Z", "ms": 1436910620732.2156 }, "end": { "local": "2015-07-15T00:38:21+02:00", "utc": "2015-07-14T22:38:21Z", "ms": 1436913500732.2156 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:21 on Tue 14 Jul to 03:09 on Wed 15 Jul.", "fact": "2015-07-14T01:20:44Z → 2015-07-15T01:08:49Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:50–00:38 on the 13th, 23:50–00:38 on the 14th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9028 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Tuesday 14 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": "2015-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-14", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Tuesday 14 July. Caturdaśī runs from 03:21 on Tue 14 Jul to 03:09 on Wed 15 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-07-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22975, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2015-07-17T04:10:15+02:00", "utc": "2015-07-17T02:10:15Z", "ms": 1437099015214.3674 }, "end": { "local": "2015-07-18T05:27:57+02:00", "utc": "2015-07-18T03:27:57Z", "ms": 1437190076833.5986 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-17T04:10:15+02:00", "utc": "2015-07-17T02:10:15Z", "ms": 1437099015214.3674 }, "end": { "local": "2015-07-18T05:27:57+02:00", "utc": "2015-07-18T03:27:57Z", "ms": 1437190076833.5986 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-07-17", "window": { "start": { "local": "2015-07-17T11:50:47+02:00", "utc": "2015-07-17T09:50:47Z", "ms": 1437126646546.5015 }, "end": { "local": "2015-07-17T12:38:47+02:00", "utc": "2015-07-17T10:38:47Z", "ms": 1437129526546.5015 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-07-18", "window": { "start": { "local": "2015-07-18T11:50:52+02:00", "utc": "2015-07-18T09:50:52Z", "ms": 1437213051707.3877 }, "end": { "local": "2015-07-18T12:38:52+02:00", "utc": "2015-07-18T10:38:52Z", "ms": 1437215931707.3877 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 04:10 on Fri 17 Jul to 05:28 on Sat 18 Jul.", "fact": "2015-07-17T02:10:15Z → 2015-07-18T03:27:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 17th, 11:51–12:39 on the 18th.", "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 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 22975 s" }, { "step": "ruling", "text": "Rathayātrā, Soweto, 2015: Friday 17 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": "2015-07-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-17", "confidence": "determinate" } ], "quote": "In Soweto, Rathayātrā 2015 falls on Friday 17 July. Dvitīyā runs from 04:10 on Fri 17 Jul to 05:28 on Sat 18 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-07-19", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8448, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-07-19T07:16:12+02:00", "utc": "2015-07-19T05:16:12Z", "ms": 1437282972392.1099 }, "end": { "local": "2015-07-20T09:30:12+02:00", "utc": "2015-07-20T07:30:12Z", "ms": 1437377412446.3137 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-19T07:16:12+02:00", "utc": "2015-07-19T05:16:12Z", "ms": 1437282972392.1099 }, "end": { "local": "2015-07-20T09:30:12+02:00", "utc": "2015-07-20T07:30:12Z", "ms": 1437377412446.3137 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-07-19", "window": { "start": { "local": "2015-07-19T11:50:56+02:00", "utc": "2015-07-19T09:50:56Z", "ms": 1437299456319.1494 }, "end": { "local": "2015-07-19T12:38:56+02:00", "utc": "2015-07-19T10:38:56Z", "ms": 1437302336319.1494 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-07-20", "window": { "start": { "local": "2015-07-20T11:51:00+02:00", "utc": "2015-07-20T09:51:00Z", "ms": 1437385860368.7036 }, "end": { "local": "2015-07-20T12:39:00+02:00", "utc": "2015-07-20T10:39:00Z", "ms": 1437388740368.7036 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:16 on Sun 19 Jul to 09:30 on Mon 20 Jul.", "fact": "2015-07-19T05:16:12Z → 2015-07-20T07:30:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 19th, 11:51–12:39 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8448 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Sunday 19 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": "2015-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-19", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Sunday 19 July. Caturthī runs from 07:16 on Sun 19 Jul to 09:30 on Mon 20 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-07-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 598, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2015-07-20T09:30:12+02:00", "utc": "2015-07-20T07:30:12Z", "ms": 1437377412446.3137 }, "end": { "local": "2015-07-21T12:01:02+02:00", "utc": "2015-07-21T10:01:02Z", "ms": 1437472862230.4802 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-20T09:30:12+02:00", "utc": "2015-07-20T07:30:12Z", "ms": 1437377412446.3137 }, "end": { "local": "2015-07-21T12:01:02+02:00", "utc": "2015-07-21T10:01:02Z", "ms": 1437472862230.4802 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-07-20", "window": { "start": { "local": "2015-07-20T11:51:00+02:00", "utc": "2015-07-20T09:51:00Z", "ms": 1437385860368.7036 }, "end": { "local": "2015-07-20T12:39:00+02:00", "utc": "2015-07-20T10:39:00Z", "ms": 1437388740368.7036 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-07-21", "window": { "start": { "local": "2015-07-21T11:51:04+02:00", "utc": "2015-07-21T09:51:04Z", "ms": 1437472263844.2837 }, "end": { "local": "2015-07-21T12:39:04+02:00", "utc": "2015-07-21T10:39:04Z", "ms": 1437475143844.2837 } }, "covered_min": 10, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 09:30 on Mon 20 Jul to 12:01 on Tue 21 Jul.", "fact": "2015-07-20T07:30:12Z → 2015-07-21T10:01:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 20th, 11:51–12:39 on the 21st.", "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 20th and 10 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 598 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Soweto, 2015: Tuesday 21 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": "2015-07-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-21", "confidence": "determinate" } ], "quote": "In Soweto, Skanda Pañcamī 2015 falls on Tuesday 21 July. Pañcamī runs from 09:30 on Mon 20 Jul to 12:01 on Tue 21 Jul and covers 10 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/soweto/festivals/2015/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": "/soweto/festivals/2015/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7018, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2015-07-22T14:36:05+02:00", "utc": "2015-07-22T12:36:05Z", "ms": 1437568565018.6106 }, "end": { "local": "2015-07-23T17:00:29+02:00", "utc": "2015-07-23T15:00:29Z", "ms": 1437663629039.978 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-22T14:36:05+02:00", "utc": "2015-07-22T12:36:05Z", "ms": 1437568565018.6106 }, "end": { "local": "2015-07-23T17:00:29+02:00", "utc": "2015-07-23T15:00:29Z", "ms": 1437663629039.978 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-07-22", "window": { "start": { "local": "2015-07-22T11:51:07+02:00", "utc": "2015-07-22T09:51:07Z", "ms": 1437558666735.4353 }, "end": { "local": "2015-07-22T12:39:07+02:00", "utc": "2015-07-22T10:39:07Z", "ms": 1437561546735.4353 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-07-23", "window": { "start": { "local": "2015-07-23T11:51:09+02:00", "utc": "2015-07-23T09:51:09Z", "ms": 1437645069033.0073 }, "end": { "local": "2015-07-23T12:39:09+02:00", "utc": "2015-07-23T10:39:09Z", "ms": 1437647949033.0073 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 14:36 on Wed 22 Jul to 17:00 on Thu 23 Jul.", "fact": "2015-07-22T12:36:05Z → 2015-07-23T15:00:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 22nd, 11:51–12:39 on the 23rd.", "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 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 7018 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Soweto, 2015: Thursday 23 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": "2015-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-23", "confidence": "determinate" } ], "quote": "In Soweto, Vivasvat Saptamī 2015 falls on Thursday 23 July. Saptamī runs from 14:36 on Wed 22 Jul to 17:00 on Thu 23 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-07-27", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35754, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-07-26T20:55:13+02:00", "utc": "2015-07-26T18:55:13Z", "ms": 1437936913145.7183 }, "end": { "local": "2015-07-27T20:40:38+02:00", "utc": "2015-07-27T18:40:38Z", "ms": 1438022438231.7197 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-26T20:55:13+02:00", "utc": "2015-07-26T18:55:13Z", "ms": 1437936913145.7183 }, "end": { "local": "2015-07-27T20:40:38+02:00", "utc": "2015-07-27T18:40:38Z", "ms": 1438022438231.7197 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-07-27", "window": { "start": { "local": "2015-07-27T06:51:07+02:00", "utc": "2015-07-27T04:51:07Z", "ms": 1437972667108.5652 }, "end": { "local": "2015-07-27T06:51:07+02:00", "utc": "2015-07-27T04:51:07Z", "ms": 1437972667108.5652 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-07-28", "window": { "start": { "local": "2015-07-28T06:50:36+02:00", "utc": "2015-07-28T04:50:36Z", "ms": 1438059036157.393 }, "end": { "local": "2015-07-28T06:50:36+02:00", "utc": "2015-07-28T04:50:36Z", "ms": 1438059036157.393 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:55 on Sun 26 Jul to 20:41 on Mon 27 Jul.", "fact": "2015-07-26T18:55:13Z → 2015-07-27T18:40:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:51 on the 27th and 06:51 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 35754 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Soweto, 2015: Monday 27 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": "2015-07-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-27", "confidence": "determinate" } ], "quote": "In Soweto, Hariśayanī Ekādaśī 2015 falls on Monday 27 July. Ekādaśī runs from 20:55 on Sun 26 Jul to 20:41 on Mon 27 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-07-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-07-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 715, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-07-28T19:37:58+02:00", "utc": "2015-07-28T17:37:58Z", "ms": 1438105077505.9294 }, "end": { "local": "2015-07-29T17:52:11+02:00", "utc": "2015-07-29T15:52:11Z", "ms": 1438185131390.007 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-28T19:37:58+02:00", "utc": "2015-07-28T17:37:58Z", "ms": 1438105077505.9294 }, "end": { "local": "2015-07-29T17:52:11+02:00", "utc": "2015-07-29T15:52:11Z", "ms": 1438185131390.007 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-07-28", "window": { "start": { "local": "2015-07-28T17:39:47+02:00", "utc": "2015-07-28T15:39:47Z", "ms": 1438097986623.793 }, "end": { "local": "2015-07-28T19:25:09+02:00", "utc": "2015-07-28T17:25:09Z", "ms": 1438104308939.0532 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "2015-07-29", "window": { "start": { "local": "2015-07-29T17:40:16+02:00", "utc": "2015-07-29T15:40:16Z", "ms": 1438184416033.7695 }, "end": { "local": "2015-07-29T19:25:30+02:00", "utc": "2015-07-29T17:25:30Z", "ms": 1438190729978.1516 } }, "covered_min": 12, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:38 on Tue 28 Jul to 17:52 on Wed 29 Jul.", "fact": "2015-07-28T17:37:58Z → 2015-07-29T15:52:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:40–19:25 on the 28th, 17:40–19:25 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 105 minutes on the 28th and 12 of 105 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 715 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Wednesday 29 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": "2015-07-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-28", "confidence": "boundary" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Wednesday 29 July. Trayodaśī runs from 19:38 on Tue 28 Jul to 17:52 on Wed 29 Jul and covers 12 of 105 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-07-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-30", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 21, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-07-30T15:30:51+02:00", "utc": "2015-07-30T13:30:51Z", "ms": 1438263051204.7646 }, "end": { "local": "2015-07-31T12:42:54+02:00", "utc": "2015-07-31T10:42:54Z", "ms": 1438339374216.6284 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-30T15:30:51+02:00", "utc": "2015-07-30T13:30:51Z", "ms": 1438263051204.7646 }, "end": { "local": "2015-07-31T12:42:54+02:00", "utc": "2015-07-31T10:42:54Z", "ms": 1438339374216.6284 } }, "kaala": "sayahna", "days": [ { "local_date": "2015-07-30", "window": { "start": { "local": "2015-07-30T15:30:30+02:00", "utc": "2015-07-30T13:30:30Z", "ms": 1438263030451.5498 }, "end": { "local": "2015-07-30T17:40:45+02:00", "utc": "2015-07-30T15:40:45Z", "ms": 1438270845410.2783 } }, "covered_min": 130, "window_min": 130, "qualifies": true }, { "local_date": "2015-07-31", "window": { "start": { "local": "2015-07-31T15:30:47+02:00", "utc": "2015-07-31T13:30:47Z", "ms": 1438349447005.6511 }, "end": { "local": "2015-07-31T17:41:15+02:00", "utc": "2015-07-31T15:41:15Z", "ms": 1438357274742.199 } }, "covered_min": 0, "window_min": 130, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:31 on Thu 30 Jul to 12:43 on Fri 31 Jul.", "fact": "2015-07-30T13:30:51Z → 2015-07-31T10:42:54Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:31–17:41 on the 30th, 15:31–17:41 on the 31st.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 130 of 130 minutes on the 30th and 0 of 130 on the 31st.", "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 21 s < 300 s" }, { "step": "ruling", "text": "Kokilā Vrata, Soweto, 2015: Thursday 30 July.", "fact": "confidence: boundary (margin)" } ], "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": "2015-07-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-30", "confidence": "boundary" } ], "quote": "In Soweto, Kokilā Vrata 2015 falls on Thursday 30 July. Pūrṇimā runs from 15:31 on Thu 30 Jul to 12:43 on Fri 31 Jul and covers all of sāyāhna that late afternoon. It is 0 min 21 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7794, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-07-30T15:30:51+02:00", "utc": "2015-07-30T13:30:51Z", "ms": 1438263051204.7646 }, "end": { "local": "2015-07-31T12:42:54+02:00", "utc": "2015-07-31T10:42:54Z", "ms": 1438339374216.6284 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-30T15:30:51+02:00", "utc": "2015-07-30T13:30:51Z", "ms": 1438263051204.7646 }, "end": { "local": "2015-07-31T12:42:54+02:00", "utc": "2015-07-31T10:42:54Z", "ms": 1438339374216.6284 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-07-30", "window": { "start": { "local": "2015-07-30T17:40:45+02:00", "utc": "2015-07-30T15:40:45Z", "ms": 1438270845410.2783 }, "end": { "local": "2015-07-30T19:25:51+02:00", "utc": "2015-07-30T17:25:51Z", "ms": 1438277150830.1692 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "2015-07-31", "window": { "start": { "local": "2015-07-31T17:41:15+02:00", "utc": "2015-07-31T15:41:15Z", "ms": 1438357274742.199 }, "end": { "local": "2015-07-31T19:26:11+02:00", "utc": "2015-07-31T17:26:11Z", "ms": 1438363571487.8818 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:31 on Thu 30 Jul to 12:43 on Fri 31 Jul.", "fact": "2015-07-30T13:30:51Z → 2015-07-31T10:42:54Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:41–19:26 on the 30th, 17:41–19:26 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 105 of 105 minutes on the 30th and 0 of 105 on the 31st.", "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 7794 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Soweto, 2015: Thursday 30 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": "2015-07-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-30", "confidence": "determinate" } ], "quote": "In Soweto, Śiva Śayanotsava 2015 falls on Thursday 30 July. Pūrṇimā runs from 15:31 on Thu 30 Jul to 12:43 on Fri 31 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13410, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-07-30T15:30:51+02:00", "utc": "2015-07-30T13:30:51Z", "ms": 1438263051204.7646 }, "end": { "local": "2015-07-31T12:42:54+02:00", "utc": "2015-07-31T10:42:54Z", "ms": 1438339374216.6284 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-30T15:30:51+02:00", "utc": "2015-07-30T13:30:51Z", "ms": 1438263051204.7646 }, "end": { "local": "2015-07-31T12:42:54+02:00", "utc": "2015-07-31T10:42:54Z", "ms": 1438339374216.6284 } }, "kaala": "udaya-3", "days": [ { "local_date": "2015-07-30", "window": { "start": { "local": "2015-07-30T06:49:31+02:00", "utc": "2015-07-30T04:49:31Z", "ms": 1438231770616.636 }, "end": { "local": "2015-07-30T08:59:46+02:00", "utc": "2015-07-30T06:59:46Z", "ms": 1438239585575.3645 } }, "covered_min": 0, "window_min": 130, "qualifies": false }, { "local_date": "2015-07-31", "window": { "start": { "local": "2015-07-31T06:48:56+02:00", "utc": "2015-07-31T04:48:56Z", "ms": 1438318136059.4595 }, "end": { "local": "2015-07-31T08:59:24+02:00", "utc": "2015-07-31T06:59:24Z", "ms": 1438325963796.0073 } }, "covered_min": 130, "window_min": 130, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:31 on Thu 30 Jul to 12:43 on Fri 31 Jul.", "fact": "2015-07-30T13:30:51Z → 2015-07-31T10:42:54Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:50–09:00 on the 30th, 06:49–08:59 on the 31st.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 0 of 130 minutes on the 30th and 130 of 130 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one morning qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13410 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Soweto, 2015: Friday 31 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vyasa-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "udaya-3", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-07-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-31", "confidence": "determinate" } ], "quote": "In Soweto, Vyāsa Pūjā 2015 falls on Friday 31 July. Pūrṇimā runs from 15:31 on Thu 30 Jul to 12:43 on Fri 31 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-07-31", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 229, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-07-30T15:30:51+02:00", "utc": "2015-07-30T13:30:51Z", "ms": 1438263051204.7646 }, "end": { "local": "2015-07-31T12:42:54+02:00", "utc": "2015-07-31T10:42:54Z", "ms": 1438339374216.6284 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2015-07-30T15:30:51+02:00", "utc": "2015-07-30T13:30:51Z", "ms": 1438263051204.7646 }, "end": { "local": "2015-07-31T12:42:54+02:00", "utc": "2015-07-31T10:42:54Z", "ms": 1438339374216.6284 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-07-30", "window": { "start": { "local": "2015-07-30T11:51:08+02:00", "utc": "2015-07-30T09:51:08Z", "ms": 1438249868013.457 }, "end": { "local": "2015-07-30T12:39:08+02:00", "utc": "2015-07-30T10:39:08Z", "ms": 1438252748013.457 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-07-31", "window": { "start": { "local": "2015-07-31T11:51:05+02:00", "utc": "2015-07-31T09:51:05Z", "ms": 1438336265400.829 }, "end": { "local": "2015-07-31T12:39:05+02:00", "utc": "2015-07-31T10:39:05Z", "ms": 1438339145400.829 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:31 on Thu 30 Jul to 12:43 on Fri 31 Jul.", "fact": "2015-07-30T13:30:51Z → 2015-07-31T10:42:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 30th, 11:51–12:39 on the 31st.", "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 30th and 48 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 229 s < 300 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Soweto, 2015: Friday 31 July.", "fact": "confidence: boundary (margin)" } ], "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": "2015-07-31", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-07-31", "confidence": "determinate" } ], "quote": "In Soweto, Guru Pūrṇimā 2015 falls on Friday 31 July. Pūrṇimā runs from 15:31 on Thu 30 Jul to 12:43 on Fri 31 Jul and covers all of madhyāhna that midday. It is 3 min 49 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33863, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2015-08-01T09:37:51+02:00", "utc": "2015-08-01T07:37:51Z", "ms": 1438414670927.9167 }, "end": { "local": "2015-08-02T06:25:05+02:00", "utc": "2015-08-02T04:25:05Z", "ms": 1438489505170.9973 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-01T09:37:51+02:00", "utc": "2015-08-01T07:37:51Z", "ms": 1438414670927.9167 }, "end": { "local": "2015-08-02T06:25:05+02:00", "utc": "2015-08-02T04:25:05Z", "ms": 1438489505170.9973 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-08-01", "window": { "start": { "local": "2015-08-01T19:02:14+02:00", "utc": "2015-08-01T17:02:14Z", "ms": 1438448533598.389 }, "end": { "local": "2015-08-01T19:02:14+02:00", "utc": "2015-08-01T17:02:14Z", "ms": 1438448533598.389 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-08-02", "window": { "start": { "local": "2015-08-02T20:07:03+02:00", "utc": "2015-08-02T18:07:03Z", "ms": 1438538822601.5002 }, "end": { "local": "2015-08-02T20:07:03+02:00", "utc": "2015-08-02T18:07:03Z", "ms": 1438538822601.5002 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 09:38 on Sat 1 Aug to 06:25 on Sun 2 Aug.", "fact": "2015-08-01T07:37:51Z → 2015-08-02T04:25:05Z" }, { "step": "kaala", "text": "Moonrise is at 19:02 on the 1st and 20:07 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 1st and is not on the 2nd.", "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 33863 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Soweto, 2015: Saturday 1 August.", "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": "2015-08-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-01", "confidence": "determinate" } ], "quote": "In Soweto, Aśūnya Śayana Vrata (Āṣāḍha) 2015 falls on Saturday 1 August. Dvitīyā runs from 09:38 on Sat 1 Aug to 06:25 on Sun 2 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-08-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10766, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-08-03T03:13:24+02:00", "utc": "2015-08-03T01:13:24Z", "ms": 1438564404453.6943 }, "end": { "local": "2015-08-04T00:10:38+02:00", "utc": "2015-08-03T22:10:38Z", "ms": 1438639837699.9224 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-03T03:13:24+02:00", "utc": "2015-08-03T01:13:24Z", "ms": 1438564404453.6943 }, "end": { "local": "2015-08-04T00:10:38+02:00", "utc": "2015-08-03T22:10:38Z", "ms": 1438639837699.9224 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-08-02", "window": { "start": { "local": "2015-08-02T20:07:03+02:00", "utc": "2015-08-02T18:07:03Z", "ms": 1438538822601.5002 }, "end": { "local": "2015-08-02T20:07:03+02:00", "utc": "2015-08-02T18:07:03Z", "ms": 1438538822601.5002 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-08-03", "window": { "start": { "local": "2015-08-03T21:11:12+02:00", "utc": "2015-08-03T19:11:12Z", "ms": 1438629072094.0505 }, "end": { "local": "2015-08-03T21:11:12+02:00", "utc": "2015-08-03T19:11:12Z", "ms": 1438629072094.0505 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:13 on Mon 3 Aug to 00:11 on Tue 4 Aug.", "fact": "2015-08-03T01:13:24Z → 2015-08-03T22:10:38Z" }, { "step": "kaala", "text": "Moonrise is at 20:07 on the 2nd and 21:11 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 2nd and is on the 3rd.", "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 10766 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Monday 3 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": "2015-08-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-03", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Monday 3 August. Caturthī runs from 03:13 on Mon 3 Aug to 00:11 on Tue 4 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-08-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ekadashi?on=2015-08-10", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23611, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-08-09T13:28:50+02:00", "utc": "2015-08-09T11:28:50Z", "ms": 1439119730061.5352 }, "end": { "local": "2015-08-10T13:15:41+02:00", "utc": "2015-08-10T11:15:41Z", "ms": 1439205340695.7412 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-09T13:28:50+02:00", "utc": "2015-08-09T11:28:50Z", "ms": 1439119730061.5352 }, "end": { "local": "2015-08-10T13:15:41+02:00", "utc": "2015-08-10T11:15:41Z", "ms": 1439205340695.7412 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-08-09", "window": { "start": { "local": "2015-08-09T06:42:55+02:00", "utc": "2015-08-09T04:42:55Z", "ms": 1439095374817.8057 }, "end": { "local": "2015-08-09T06:42:55+02:00", "utc": "2015-08-09T04:42:55Z", "ms": 1439095374817.8057 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-08-10", "window": { "start": { "local": "2015-08-10T06:42:09+02:00", "utc": "2015-08-10T04:42:09Z", "ms": 1439181729445.5784 }, "end": { "local": "2015-08-10T06:42:09+02:00", "utc": "2015-08-10T04:42:09Z", "ms": 1439181729445.5784 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:29 on Sun 9 Aug to 13:16 on Mon 10 Aug.", "fact": "2015-08-09T11:28:50Z → 2015-08-10T11:15:41Z" }, { "step": "kaala", "text": "Sunrise is at 06:43 on the 9th and 06:42 on the 10th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 9th and is on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23611 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Soweto, 2015: Monday 10 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": "2015-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-10", "confidence": "determinate" } ], "quote": "In Soweto, Kāmikā Ekādaśī 2015 falls on Monday 10 August. Ekādaśī runs from 13:29 on Sun 9 Aug to 13:16 on Mon 10 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-08-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-08-11", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12954, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-08-11T13:29:50+02:00", "utc": "2015-08-11T11:29:50Z", "ms": 1439292590450.3635 }, "end": { "local": "2015-08-12T14:11:06+02:00", "utc": "2015-08-12T12:11:06Z", "ms": 1439381466491.2441 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-11T13:29:50+02:00", "utc": "2015-08-11T11:29:50Z", "ms": 1439292590450.3635 }, "end": { "local": "2015-08-12T14:11:06+02:00", "utc": "2015-08-12T12:11:06Z", "ms": 1439381466491.2441 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-08-11", "window": { "start": { "local": "2015-08-11T17:46:32+02:00", "utc": "2015-08-11T15:46:32Z", "ms": 1439307992028.5352 }, "end": { "local": "2015-08-11T19:29:45+02:00", "utc": "2015-08-11T17:29:45Z", "ms": 1439314184528.0256 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "2015-08-12", "window": { "start": { "local": "2015-08-12T17:47:00+02:00", "utc": "2015-08-12T15:47:00Z", "ms": 1439394420149.547 }, "end": { "local": "2015-08-12T19:30:02+02:00", "utc": "2015-08-12T17:30:02Z", "ms": 1439400602464.3281 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:30 on Tue 11 Aug to 14:11 on Wed 12 Aug.", "fact": "2015-08-11T11:29:50Z → 2015-08-12T12:11:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:47–19:30 on the 11th, 17:47–19:30 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 103 of 103 minutes on the 11th and 0 of 103 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12954 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Tuesday 11 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": "2015-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-11", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Tuesday 11 August. Trayodaśī runs from 13:30 on Tue 11 Aug to 14:11 on Wed 12 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-08-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-08-12", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30601, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-08-12T14:11:06+02:00", "utc": "2015-08-12T12:11:06Z", "ms": 1439381466491.2441 }, "end": { "local": "2015-08-13T15:19:12+02:00", "utc": "2015-08-13T13:19:12Z", "ms": 1439471952269.5337 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-12T14:11:06+02:00", "utc": "2015-08-12T12:11:06Z", "ms": 1439381466491.2441 }, "end": { "local": "2015-08-13T15:19:12+02:00", "utc": "2015-08-13T13:19:12Z", "ms": 1439471952269.5337 } }, "kaala": "nishita", "days": [ { "local_date": "2015-08-12", "window": { "start": { "local": "2015-08-12T23:49:24+02:00", "utc": "2015-08-12T21:49:24Z", "ms": 1439416163829.976 }, "end": { "local": "2015-08-13T00:37:24+02:00", "utc": "2015-08-12T22:37:24Z", "ms": 1439419043829.976 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-08-13", "window": { "start": { "local": "2015-08-13T23:49:13+02:00", "utc": "2015-08-13T21:49:13Z", "ms": 1439502553212.831 }, "end": { "local": "2015-08-14T00:37:13+02:00", "utc": "2015-08-13T22:37:13Z", "ms": 1439505433212.831 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:11 on Wed 12 Aug to 15:19 on Thu 13 Aug.", "fact": "2015-08-12T12:11:06Z → 2015-08-13T13:19:12Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:49–00:37 on the 12th, 23:49–00:37 on the 13th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 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. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30601 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Wednesday 12 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": "2015-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-12", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Wednesday 12 August. Caturdaśī runs from 14:11 on Wed 12 Aug to 15:19 on Thu 13 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-08-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30830, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2015-08-16T21:10:54+02:00", "utc": "2015-08-16T19:10:54Z", "ms": 1439752254463.2231 }, "end": { "local": "2015-08-17T23:44:24+02:00", "utc": "2015-08-17T21:44:24Z", "ms": 1439847863667.316 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-16T21:10:54+02:00", "utc": "2015-08-16T19:10:54Z", "ms": 1439752254463.2231 }, "end": { "local": "2015-08-17T23:44:24+02:00", "utc": "2015-08-17T21:44:24Z", "ms": 1439847863667.316 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-08-16", "window": { "start": { "local": "2015-08-16T11:49:04+02:00", "utc": "2015-08-16T09:49:04Z", "ms": 1439718544078.1199 }, "end": { "local": "2015-08-16T12:37:04+02:00", "utc": "2015-08-16T10:37:04Z", "ms": 1439721424078.1199 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-08-17", "window": { "start": { "local": "2015-08-17T11:48:52+02:00", "utc": "2015-08-17T09:48:52Z", "ms": 1439804931763.2356 }, "end": { "local": "2015-08-17T12:36:52+02:00", "utc": "2015-08-17T10:36:52Z", "ms": 1439807811763.2356 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:11 on Sun 16 Aug to 23:44 on Mon 17 Aug.", "fact": "2015-08-16T19:10:54Z → 2015-08-17T21:44:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 16th, 11:49–12:37 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30830 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Soweto, 2015: Monday 17 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": "2015-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-17", "confidence": "determinate" } ], "quote": "In Soweto, Madhusravā Tṛtīyā (Hariyali Teej) 2015 falls on Monday 17 August. Tṛtīyā runs from 21:11 on Sun 16 Aug to 23:44 on Mon 17 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-08-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33904, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-08-17T23:44:24+02:00", "utc": "2015-08-17T21:44:24Z", "ms": 1439847863667.316 }, "end": { "local": "2015-08-19T02:23:22+02:00", "utc": "2015-08-19T00:23:22Z", "ms": 1439943801596.776 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-17T23:44:24+02:00", "utc": "2015-08-17T21:44:24Z", "ms": 1439847863667.316 }, "end": { "local": "2015-08-19T02:23:22+02:00", "utc": "2015-08-19T00:23:22Z", "ms": 1439943801596.776 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-08-18", "window": { "start": { "local": "2015-08-18T11:48:39+02:00", "utc": "2015-08-18T09:48:39Z", "ms": 1439891318925.0625 }, "end": { "local": "2015-08-18T12:36:39+02:00", "utc": "2015-08-18T10:36:39Z", "ms": 1439894198925.0625 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-08-19", "window": { "start": { "local": "2015-08-19T11:48:26+02:00", "utc": "2015-08-19T09:48:26Z", "ms": 1439977705572.2031 }, "end": { "local": "2015-08-19T12:36:26+02:00", "utc": "2015-08-19T10:36:26Z", "ms": 1439980585572.2031 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:44 on Mon 17 Aug to 02:23 on Wed 19 Aug.", "fact": "2015-08-17T21:44:24Z → 2015-08-19T00:23:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 18th, 11:48–12:36 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33904 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Tuesday 18 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": "2015-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-18", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Tuesday 18 August. Caturthī runs from 23:44 on Mon 17 Aug to 02:23 on Wed 19 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-08-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24707, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2015-08-19T02:23:22+02:00", "utc": "2015-08-19T00:23:22Z", "ms": 1439943801596.776 }, "end": { "local": "2015-08-20T04:56:25+02:00", "utc": "2015-08-20T02:56:25Z", "ms": 1440039384812.775 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-19T02:23:22+02:00", "utc": "2015-08-19T00:23:22Z", "ms": 1439943801596.776 }, "end": { "local": "2015-08-20T04:56:25+02:00", "utc": "2015-08-20T02:56:25Z", "ms": 1440039384812.775 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-08-19", "window": { "start": { "local": "2015-08-19T11:48:26+02:00", "utc": "2015-08-19T09:48:26Z", "ms": 1439977705572.2031 }, "end": { "local": "2015-08-19T12:36:26+02:00", "utc": "2015-08-19T10:36:26Z", "ms": 1439980585572.2031 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-08-20", "window": { "start": { "local": "2015-08-20T11:48:12+02:00", "utc": "2015-08-20T09:48:12Z", "ms": 1440064091714.1255 }, "end": { "local": "2015-08-20T12:36:12+02:00", "utc": "2015-08-20T10:36:12Z", "ms": 1440066971714.1255 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 02:23 on Wed 19 Aug to 04:56 on Thu 20 Aug.", "fact": "2015-08-19T00:23:22Z → 2015-08-20T02:56:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 19th, 11:48–12:36 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24707 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Soweto, 2015: Wednesday 19 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": "2015-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-19", "confidence": "determinate" } ], "quote": "In Soweto, Nāga Pañcamī 2015 falls on Wednesday 19 August. Pañcamī runs from 02:23 on Wed 19 Aug to 04:56 on Thu 20 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-08-26", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6146, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-08-25T09:34:59+02:00", "utc": "2015-08-25T07:34:59Z", "ms": 1440488099255.5225 }, "end": { "local": "2015-08-26T08:10:29+02:00", "utc": "2015-08-26T06:10:29Z", "ms": 1440569428618.2266 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-25T09:34:59+02:00", "utc": "2015-08-25T07:34:59Z", "ms": 1440488099255.5225 }, "end": { "local": "2015-08-26T08:10:29+02:00", "utc": "2015-08-26T06:10:29Z", "ms": 1440569428618.2266 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-08-25", "window": { "start": { "local": "2015-08-25T06:29:01+02:00", "utc": "2015-08-25T04:29:01Z", "ms": 1440476941280.0815 }, "end": { "local": "2015-08-25T06:29:01+02:00", "utc": "2015-08-25T04:29:01Z", "ms": 1440476941280.0815 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-08-26", "window": { "start": { "local": "2015-08-26T06:28:02+02:00", "utc": "2015-08-26T04:28:02Z", "ms": 1440563282471.3743 }, "end": { "local": "2015-08-26T06:28:02+02:00", "utc": "2015-08-26T04:28:02Z", "ms": 1440563282471.3743 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:35 on Tue 25 Aug to 08:10 on Wed 26 Aug.", "fact": "2015-08-25T07:34:59Z → 2015-08-26T06:10:29Z" }, { "step": "kaala", "text": "Sunrise is at 06:29 on the 25th and 06:28 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 6146 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Soweto, 2015: Wednesday 26 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": "2015-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-26", "confidence": "determinate" } ], "quote": "In Soweto, Putradā Ekādaśī 2015 falls on Wednesday 26 August. Ekādaśī runs from 09:35 on Tue 25 Aug to 08:10 on Wed 26 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-08-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12970, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2015-08-26T08:10:29+02:00", "utc": "2015-08-26T06:10:29Z", "ms": 1440569428618.2266 }, "end": { "local": "2015-08-27T06:02:14+02:00", "utc": "2015-08-27T04:02:14Z", "ms": 1440648134242.097 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-26T08:10:29+02:00", "utc": "2015-08-26T06:10:29Z", "ms": 1440569428618.2266 }, "end": { "local": "2015-08-27T06:02:14+02:00", "utc": "2015-08-27T04:02:14Z", "ms": 1440648134242.097 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-08-26", "window": { "start": { "local": "2015-08-26T11:46:39+02:00", "utc": "2015-08-26T09:46:39Z", "ms": 1440582398599.9844 }, "end": { "local": "2015-08-26T12:34:39+02:00", "utc": "2015-08-26T10:34:39Z", "ms": 1440585278599.9844 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-08-27", "window": { "start": { "local": "2015-08-27T11:46:22+02:00", "utc": "2015-08-27T09:46:22Z", "ms": 1440668781548.9163 }, "end": { "local": "2015-08-27T12:34:22+02:00", "utc": "2015-08-27T10:34:22Z", "ms": 1440671661548.9163 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 08:10 on Wed 26 Aug to 06:02 on Thu 27 Aug.", "fact": "2015-08-26T06:10:29Z → 2015-08-27T04:02:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 26th, 11:46–12:34 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12970 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Soweto, 2015: Wednesday 26 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": "2015-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-26", "confidence": "determinate" } ], "quote": "In Soweto, Dāmodara Dvādaśī 2015 falls on Wednesday 26 August. Dvādaśī runs from 08:10 on Wed 26 Aug to 06:02 on Thu 27 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/pradosha-vrata?on=2015-08-27", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27816, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-08-27T06:02:14+02:00", "utc": "2015-08-27T04:02:14Z", "ms": 1440648134242.097 }, "end": { "local": "2015-08-28T03:17:35+02:00", "utc": "2015-08-28T01:17:35Z", "ms": 1440724655490.1143 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-27T06:02:14+02:00", "utc": "2015-08-27T04:02:14Z", "ms": 1440648134242.097 }, "end": { "local": "2015-08-28T03:17:35+02:00", "utc": "2015-08-28T01:17:35Z", "ms": 1440724655490.1143 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-08-26", "window": { "start": { "local": "2015-08-26T17:53:15+02:00", "utc": "2015-08-26T15:53:15Z", "ms": 1440604394728.5947 }, "end": { "local": "2015-08-26T19:33:45+02:00", "utc": "2015-08-26T17:33:45Z", "ms": 1440610425166.0757 } }, "covered_min": 0, "window_min": 101, "qualifies": false }, { "local_date": "2015-08-27", "window": { "start": { "local": "2015-08-27T17:53:40+02:00", "utc": "2015-08-27T15:53:40Z", "ms": 1440690820088.1304 }, "end": { "local": "2015-08-27T19:33:59+02:00", "utc": "2015-08-27T17:33:59Z", "ms": 1440696839132.6218 } }, "covered_min": 100, "window_min": 100, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:02 on Thu 27 Aug to 03:18 on Fri 28 Aug.", "fact": "2015-08-27T04:02:14Z → 2015-08-28T01:17:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:53–19:34 on the 26th, 17:54–19:34 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 101 minutes on the 26th and 100 of 100 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27816 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Thursday 27 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": "2015-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-27", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Thursday 27 August. Trayodaśī runs from 06:02 on Thu 27 Aug to 03:18 on Fri 28 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-08-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14213, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-08-29T00:05:22+02:00", "utc": "2015-08-28T22:05:22Z", "ms": 1440799522420.8323 }, "end": { "local": "2015-08-29T20:35:12+02:00", "utc": "2015-08-29T18:35:12Z", "ms": 1440873311879.375 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2015-08-29T10:21:55+02:00", "utc": "2015-08-29T08:21:55Z", "ms": 1440836514927.0637 }, "end": { "local": "2015-08-29T20:35:12+02:00", "utc": "2015-08-29T18:35:12Z", "ms": 1440873311879.375 } }, "kaala": "day", "days": [ { "local_date": "2015-08-28", "window": { "start": { "local": "2015-08-28T06:26:03+02:00", "utc": "2015-08-28T04:26:03Z", "ms": 1440735962921.8162 }, "end": { "local": "2015-08-29T06:25:02+02:00", "utc": "2015-08-29T04:25:02Z", "ms": 1440822302235.3884 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "2015-08-29", "window": { "start": { "local": "2015-08-29T06:25:02+02:00", "utc": "2015-08-29T04:25:02Z", "ms": 1440822302235.3884 }, "end": { "local": "2015-08-30T06:24:01+02:00", "utc": "2015-08-30T04:24:01Z", "ms": 1440908640978.8228 } }, "covered_min": 613, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:05 on Sat 29 Aug to 20:35 on Sat 29 Aug. Its second half begins at 10:22 on Sat 29 Aug.", "fact": "2015-08-28T22:05:22Z → 2015-08-29T18:35:12Z · second half from 2015-08-29T08:21:55Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:26 on the 28th, and from 06:25 on the 29th.", "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 0 of 1439 minutes on the 28th and 613 of 1439 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14213 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Soweto, 2015: Saturday 29 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-29", "confidence": "determinate" } ], "quote": "In Soweto, Rakṣā Bandhana (Rakhi) 2015 falls on Saturday 29 August. The second half of Pūrṇimā runs from 10:22 on Sat 29 Aug to 20:35 on Sat 29 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28886, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-08-29T00:05:22+02:00", "utc": "2015-08-28T22:05:22Z", "ms": 1440799522420.8323 }, "end": { "local": "2015-08-29T20:35:12+02:00", "utc": "2015-08-29T18:35:12Z", "ms": 1440873311879.375 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2015-08-29T00:05:22+02:00", "utc": "2015-08-28T22:05:22Z", "ms": 1440799522420.8323 }, "end": { "local": "2015-08-29T20:35:12+02:00", "utc": "2015-08-29T18:35:12Z", "ms": 1440873311879.375 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-08-28", "window": { "start": { "local": "2015-08-28T11:46:04+02:00", "utc": "2015-08-28T09:46:04Z", "ms": 1440755164104.3691 }, "end": { "local": "2015-08-28T12:34:04+02:00", "utc": "2015-08-28T10:34:04Z", "ms": 1440758044104.3691 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-08-29", "window": { "start": { "local": "2015-08-29T11:45:46+02:00", "utc": "2015-08-29T09:45:46Z", "ms": 1440841546286.0454 }, "end": { "local": "2015-08-29T12:33:46+02:00", "utc": "2015-08-29T10:33:46Z", "ms": 1440844426286.0454 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:05 on Sat 29 Aug to 20:35 on Sat 29 Aug.", "fact": "2015-08-28T22:05:22Z → 2015-08-29T18:35:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 28th, 11:46–12:34 on the 29th.", "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 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28886 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Soweto, 2015: Saturday 29 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": "2015-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-29", "confidence": "determinate" } ], "quote": "In Soweto, Ṛṣi Tarpaṇa 2015 falls on Saturday 29 August. Pūrṇimā runs from 00:05 on Sat 29 Aug to 20:35 on Sat 29 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6957, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2015-08-30T16:56:54+02:00", "utc": "2015-08-30T14:56:54Z", "ms": 1440946614333.8328 }, "end": { "local": "2015-08-31T13:20:09+02:00", "utc": "2015-08-31T11:20:09Z", "ms": 1441020009281.4893 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-08-30T16:56:54+02:00", "utc": "2015-08-30T14:56:54Z", "ms": 1440946614333.8328 }, "end": { "local": "2015-08-31T13:20:09+02:00", "utc": "2015-08-31T11:20:09Z", "ms": 1441020009281.4893 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-08-30", "window": { "start": { "local": "2015-08-30T18:52:52+02:00", "utc": "2015-08-30T16:52:52Z", "ms": 1440953571514.5015 }, "end": { "local": "2015-08-30T18:52:52+02:00", "utc": "2015-08-30T16:52:52Z", "ms": 1440953571514.5015 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-08-31", "window": { "start": { "local": "2015-08-31T19:58:38+02:00", "utc": "2015-08-31T17:58:38Z", "ms": 1441043918092.7192 }, "end": { "local": "2015-08-31T19:58:38+02:00", "utc": "2015-08-31T17:58:38Z", "ms": 1441043918092.7192 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 16:57 on Sun 30 Aug to 13:20 on Mon 31 Aug.", "fact": "2015-08-30T14:56:54Z → 2015-08-31T11:20:09Z" }, { "step": "kaala", "text": "Moonrise is at 18:53 on the 30th and 19:59 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6957 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Soweto, 2015: Sunday 30 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": "2015-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-08-30", "confidence": "determinate" } ], "quote": "In Soweto, Aśūnya Śayana Vrata 2015 falls on Sunday 30 August. Dvitīyā runs from 16:57 on Sun 30 Aug to 13:20 on Mon 31 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2820, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2015-08-31T13:20:09+02:00", "utc": "2015-08-31T11:20:09Z", "ms": 1441020009281.4893 }, "end": { "local": "2015-09-01T09:54:06+02:00", "utc": "2015-09-01T07:54:06Z", "ms": 1441094045815.141 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-08-31T13:20:09+02:00", "utc": "2015-08-31T11:20:09Z", "ms": 1441020009281.4893 }, "end": { "local": "2015-09-01T09:54:06+02:00", "utc": "2015-09-01T07:54:06Z", "ms": 1441094045815.141 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-08-31", "window": { "start": { "local": "2015-08-31T11:45:10+02:00", "utc": "2015-08-31T09:45:10Z", "ms": 1441014309612.1533 }, "end": { "local": "2015-08-31T12:33:10+02:00", "utc": "2015-08-31T10:33:10Z", "ms": 1441017189612.1533 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-01", "window": { "start": { "local": "2015-09-01T11:44:51+02:00", "utc": "2015-09-01T09:44:51Z", "ms": 1441100690799.9917 }, "end": { "local": "2015-09-01T12:32:51+02:00", "utc": "2015-09-01T10:32:51Z", "ms": 1441103570799.9917 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:20 on Mon 31 Aug to 09:54 on Tue 1 Sep.", "fact": "2015-08-31T11:20:09Z → 2015-09-01T07:54:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 31st, 11:45–12:33 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 2820 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Soweto, 2015: Tuesday 1 September.", "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": "2015-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-01", "confidence": "boundary" } ], "quote": "In Soweto, Kajjalī Tṛtīyā (Kajari Teej) 2015 falls on Tuesday 1 September. Tṛtīyā runs from 13:20 on Mon 31 Aug to 09:54 on Tue 1 Sep, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20573, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-09-01T09:54:06+02:00", "utc": "2015-09-01T07:54:06Z", "ms": 1441094045815.141 }, "end": { "local": "2015-09-02T06:47:05+02:00", "utc": "2015-09-02T04:47:05Z", "ms": 1441169225152.528 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-01T09:54:06+02:00", "utc": "2015-09-01T07:54:06Z", "ms": 1441094045815.141 }, "end": { "local": "2015-09-02T06:47:05+02:00", "utc": "2015-09-02T04:47:05Z", "ms": 1441169225152.528 } }, "kaala": "sayahna", "days": [ { "local_date": "2015-09-01", "window": { "start": { "local": "2015-09-01T15:36:59+02:00", "utc": "2015-09-01T13:36:59Z", "ms": 1441114619157.4739 }, "end": { "local": "2015-09-01T17:55:45+02:00", "utc": "2015-09-01T15:55:45Z", "ms": 1441122944729.1287 } }, "covered_min": 139, "window_min": 139, "qualifies": true }, { "local_date": "2015-09-02", "window": { "start": { "local": "2015-09-02T15:37:06+02:00", "utc": "2015-09-02T13:37:06Z", "ms": 1441201026272.9307 }, "end": { "local": "2015-09-02T17:56:09+02:00", "utc": "2015-09-02T15:56:09Z", "ms": 1441209369321.7996 } }, "covered_min": 0, "window_min": 139, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:54 on Tue 1 Sep to 06:47 on Wed 2 Sep.", "fact": "2015-09-01T07:54:06Z → 2015-09-02T04:47:05Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:37–17:56 on the 1st, 15:37–17:56 on the 2nd.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 139 of 139 minutes on the 1st and 0 of 139 on the 2nd.", "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 20573 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Soweto, 2015: Tuesday 1 September.", "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": "2015-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-01", "confidence": "determinate" } ], "quote": "In Soweto, Bahulā Caturthī 2015 falls on Tuesday 1 September. Caturthī runs from 09:54 on Tue 1 Sep to 06:47 on Wed 2 Sep and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-09-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35008, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-09-01T09:54:06+02:00", "utc": "2015-09-01T07:54:06Z", "ms": 1441094045815.141 }, "end": { "local": "2015-09-02T06:47:05+02:00", "utc": "2015-09-02T04:47:05Z", "ms": 1441169225152.528 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-01T09:54:06+02:00", "utc": "2015-09-01T07:54:06Z", "ms": 1441094045815.141 }, "end": { "local": "2015-09-02T06:47:05+02:00", "utc": "2015-09-02T04:47:05Z", "ms": 1441169225152.528 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-08-31", "window": { "start": { "local": "2015-08-31T19:58:38+02:00", "utc": "2015-08-31T17:58:38Z", "ms": 1441043918092.7192 }, "end": { "local": "2015-08-31T19:58:38+02:00", "utc": "2015-08-31T17:58:38Z", "ms": 1441043918092.7192 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-09-01", "window": { "start": { "local": "2015-09-01T21:03:37+02:00", "utc": "2015-09-01T19:03:37Z", "ms": 1441134217273.1743 }, "end": { "local": "2015-09-01T21:03:37+02:00", "utc": "2015-09-01T19:03:37Z", "ms": 1441134217273.1743 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:54 on Tue 1 Sep to 06:47 on Wed 2 Sep.", "fact": "2015-09-01T07:54:06Z → 2015-09-02T04:47:05Z" }, { "step": "kaala", "text": "Moonrise is at 19:59 on the 31st and 21:04 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 31st and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35008 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Tuesday 1 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": "2015-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-01", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Tuesday 1 September. Caturthī runs from 09:54 on Tue 1 Sep to 06:47 on Wed 2 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-09-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27469, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2015-09-03T04:06:23+02:00", "utc": "2015-09-03T02:06:23Z", "ms": 1441245983019.9756 }, "end": { "local": "2015-09-04T01:57:51+02:00", "utc": "2015-09-03T23:57:51Z", "ms": 1441324671455.3762 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-03T04:06:23+02:00", "utc": "2015-09-03T02:06:23Z", "ms": 1441245983019.9756 }, "end": { "local": "2015-09-04T01:57:51+02:00", "utc": "2015-09-03T23:57:51Z", "ms": 1441324671455.3762 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-03", "window": { "start": { "local": "2015-09-03T11:44:12+02:00", "utc": "2015-09-03T09:44:12Z", "ms": 1441273452331.236 }, "end": { "local": "2015-09-03T12:32:12+02:00", "utc": "2015-09-03T10:32:12Z", "ms": 1441276332331.236 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-09-04", "window": { "start": { "local": "2015-09-04T11:43:53+02:00", "utc": "2015-09-04T09:43:53Z", "ms": 1441359832714.2856 }, "end": { "local": "2015-09-04T12:31:53+02:00", "utc": "2015-09-04T10:31:53Z", "ms": 1441362712714.2856 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 04:06 on Thu 3 Sep to 01:58 on Fri 4 Sep.", "fact": "2015-09-03T02:06:23Z → 2015-09-03T23:57:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 3rd, 11:44–12:32 on the 4th.", "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 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 27469 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Soweto, 2015: Thursday 3 September.", "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": "2015-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-03", "confidence": "determinate" } ], "quote": "In Soweto, Hala Ṣaṣṭhī 2015 falls on Thursday 3 September. Ṣaṣṭhī runs from 04:06 on Thu 3 Sep to 01:58 on Fri 4 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 339, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-09-05T00:25:42+02:00", "utc": "2015-09-04T22:25:42Z", "ms": 1441405541607.431 }, "end": { "local": "2015-09-05T23:32:11+02:00", "utc": "2015-09-05T21:32:11Z", "ms": 1441488730956.2915 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-05T00:25:42+02:00", "utc": "2015-09-04T22:25:42Z", "ms": 1441405541607.431 }, "end": { "local": "2015-09-05T23:32:11+02:00", "utc": "2015-09-05T21:32:11Z", "ms": 1441488730956.2915 } }, "kaala": "nishita", "days": [ { "local_date": "2015-09-04", "window": { "start": { "local": "2015-09-04T23:43:21+02:00", "utc": "2015-09-04T21:43:21Z", "ms": 1441403000674.8364 }, "end": { "local": "2015-09-05T00:31:21+02:00", "utc": "2015-09-04T22:31:21Z", "ms": 1441405880674.8364 } }, "covered_min": 6, "window_min": 48, "qualifies": true }, { "local_date": "2015-09-05", "window": { "start": { "local": "2015-09-05T23:43:01+02:00", "utc": "2015-09-05T21:43:01Z", "ms": 1441489380639.795 }, "end": { "local": "2015-09-06T00:31:01+02:00", "utc": "2015-09-05T22:31:01Z", "ms": 1441492260639.795 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:26 on Sat 5 Sep to 23:32 on Sat 5 Sep.", "fact": "2015-09-04T22:25:42Z → 2015-09-05T21:32:11Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:43–00:31 on the 4th, 23:43–00:31 on the 5th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. It covers 6 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": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 339 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Soweto, 2015: Friday 4 September.", "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": "2015-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-04", "confidence": "determinate" } ], "quote": "In Soweto, Janmāṣṭamī 2015 falls on Friday 4 September. Aṣṭamī runs from 00:26 on Sat 5 Sep to 23:32 on Sat 5 Sep and covers 6 of 48 minutes of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35161, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2015-09-04T01:57:51+02:00", "utc": "2015-09-03T23:57:51Z", "ms": 1441324671455.3762 }, "end": { "local": "2015-09-05T00:25:42+02:00", "utc": "2015-09-04T22:25:42Z", "ms": 1441405541607.431 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-04T01:57:51+02:00", "utc": "2015-09-03T23:57:51Z", "ms": 1441324671455.3762 }, "end": { "local": "2015-09-05T00:25:42+02:00", "utc": "2015-09-04T22:25:42Z", "ms": 1441405541607.431 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-04", "window": { "start": { "local": "2015-09-04T11:43:53+02:00", "utc": "2015-09-04T09:43:53Z", "ms": 1441359832714.2856 }, "end": { "local": "2015-09-04T12:31:53+02:00", "utc": "2015-09-04T10:31:53Z", "ms": 1441362712714.2856 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-09-05", "window": { "start": { "local": "2015-09-05T11:43:33+02:00", "utc": "2015-09-05T09:43:33Z", "ms": 1441446212867.27 }, "end": { "local": "2015-09-05T12:31:33+02:00", "utc": "2015-09-05T10:31:33Z", "ms": 1441449092867.27 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 01:58 on Fri 4 Sep to 00:26 on Sat 5 Sep.", "fact": "2015-09-03T23:57:51Z → 2015-09-04T22:25:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 4th, 11:44–12:32 on the 5th.", "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 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35161 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Soweto, 2015: Friday 4 September.", "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": "2015-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-04", "confidence": "determinate" } ], "quote": "In Soweto, Śītalā Saptamī 2015 falls on Friday 4 September. Saptamī runs from 01:58 on Fri 4 Sep to 00:26 on Sat 5 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-09-08", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20124, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-09-07T23:40:36+02:00", "utc": "2015-09-07T21:40:36Z", "ms": 1441662035857.1187 }, "end": { "local": "2015-09-09T00:37:59+02:00", "utc": "2015-09-08T22:37:59Z", "ms": 1441751879456.8032 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-07T23:40:36+02:00", "utc": "2015-09-07T21:40:36Z", "ms": 1441662035857.1187 }, "end": { "local": "2015-09-09T00:37:59+02:00", "utc": "2015-09-08T22:37:59Z", "ms": 1441751879456.8032 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-09-08", "window": { "start": { "local": "2015-09-08T06:14:29+02:00", "utc": "2015-09-08T04:14:29Z", "ms": 1441685668678.5662 }, "end": { "local": "2015-09-08T06:14:29+02:00", "utc": "2015-09-08T04:14:29Z", "ms": 1441685668678.5662 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-09-09", "window": { "start": { "local": "2015-09-09T06:13:23+02:00", "utc": "2015-09-09T04:13:23Z", "ms": 1441772003242.808 }, "end": { "local": "2015-09-09T06:13:23+02:00", "utc": "2015-09-09T04:13:23Z", "ms": 1441772003242.808 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:41 on Mon 7 Sep to 00:38 on Wed 9 Sep.", "fact": "2015-09-07T21:40:36Z → 2015-09-08T22:37:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:14 on the 8th and 06:13 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 8th and is not on the 9th.", "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 20124 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Soweto, 2015: Tuesday 8 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": "2015-09-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-08", "confidence": "determinate" } ], "quote": "In Soweto, Ajā Ekādaśī 2015 falls on Tuesday 8 September. Ekādaśī runs from 23:41 on Mon 7 Sep to 00:38 on Wed 9 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-09-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-09-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23337, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-09-10T02:05:43+02:00", "utc": "2015-09-10T00:05:43Z", "ms": 1441843543480.1597 }, "end": { "local": "2015-09-11T03:59:01+02:00", "utc": "2015-09-11T01:59:01Z", "ms": 1441936741399.2112 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-10T02:05:43+02:00", "utc": "2015-09-10T00:05:43Z", "ms": 1441843543480.1597 }, "end": { "local": "2015-09-11T03:59:01+02:00", "utc": "2015-09-11T01:59:01Z", "ms": 1441936741399.2112 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-09-09", "window": { "start": { "local": "2015-09-09T17:59:00+02:00", "utc": "2015-09-09T15:59:00Z", "ms": 1441814339804.9512 }, "end": { "local": "2015-09-09T19:36:46+02:00", "utc": "2015-09-09T17:36:46Z", "ms": 1441820206168.0562 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2015-09-10", "window": { "start": { "local": "2015-09-10T17:59:24+02:00", "utc": "2015-09-10T15:59:24Z", "ms": 1441900764036.2654 }, "end": { "local": "2015-09-10T19:36:58+02:00", "utc": "2015-09-10T17:36:58Z", "ms": 1441906618372.3914 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:06 on Thu 10 Sep to 03:59 on Fri 11 Sep.", "fact": "2015-09-10T00:05:43Z → 2015-09-11T01:59:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:59–19:37 on the 9th, 17:59–19:37 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 98 minutes on the 9th and 98 of 98 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23337 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Thursday 10 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": "2015-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-10", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Thursday 10 September. Trayodaśī runs from 02:06 on Thu 10 Sep to 03:59 on Fri 11 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-09-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30123, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-09-11T03:59:01+02:00", "utc": "2015-09-11T01:59:01Z", "ms": 1441936741399.2112 }, "end": { "local": "2015-09-12T06:12:43+02:00", "utc": "2015-09-12T04:12:43Z", "ms": 1442031162765.17 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-11T03:59:01+02:00", "utc": "2015-09-11T01:59:01Z", "ms": 1441936741399.2112 }, "end": { "local": "2015-09-12T06:12:43+02:00", "utc": "2015-09-12T04:12:43Z", "ms": 1442031162765.17 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-09-10", "window": { "start": { "local": "2015-09-10T17:59:24+02:00", "utc": "2015-09-10T15:59:24Z", "ms": 1441900764036.2654 }, "end": { "local": "2015-09-10T19:36:58+02:00", "utc": "2015-09-10T17:36:58Z", "ms": 1441906618372.3914 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2015-09-11", "window": { "start": { "local": "2015-09-11T17:59:48+02:00", "utc": "2015-09-11T15:59:48Z", "ms": 1441987188263.4077 }, "end": { "local": "2015-09-11T19:37:11+02:00", "utc": "2015-09-11T17:37:11Z", "ms": 1441993030542.0793 } }, "covered_min": 97, "window_min": 97, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:59 on Fri 11 Sep to 06:13 on Sat 12 Sep.", "fact": "2015-09-11T01:59:01Z → 2015-09-12T04:12:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:59–19:37 on the 10th, 18:00–19:37 on the 11th.", "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 98 minutes on the 10th and 97 of 97 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30123 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Soweto, 2015: Friday 11 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-11", "confidence": "determinate" } ], "quote": "In Soweto, Aghora Caturdaśī 2015 falls on Friday 11 September. Caturdaśī runs from 03:59 on Fri 11 Sep to 06:13 on Sat 12 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/shivaratri?on=2015-09-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12584, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-09-11T03:59:01+02:00", "utc": "2015-09-11T01:59:01Z", "ms": 1441936741399.2112 }, "end": { "local": "2015-09-12T06:12:43+02:00", "utc": "2015-09-12T04:12:43Z", "ms": 1442031162765.17 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-11T03:59:01+02:00", "utc": "2015-09-11T01:59:01Z", "ms": 1441936741399.2112 }, "end": { "local": "2015-09-12T06:12:43+02:00", "utc": "2015-09-12T04:12:43Z", "ms": 1442031162765.17 } }, "kaala": "nishita", "days": [ { "local_date": "2015-09-10", "window": { "start": { "local": "2015-09-10T23:41:18+02:00", "utc": "2015-09-10T21:41:18Z", "ms": 1441921277796.7373 }, "end": { "local": "2015-09-11T00:29:18+02:00", "utc": "2015-09-10T22:29:18Z", "ms": 1441924157796.7373 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-11", "window": { "start": { "local": "2015-09-11T23:40:57+02:00", "utc": "2015-09-11T21:40:57Z", "ms": 1442007656808.4268 }, "end": { "local": "2015-09-12T00:28:57+02:00", "utc": "2015-09-11T22:28:57Z", "ms": 1442010536808.4268 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:59 on Fri 11 Sep to 06:13 on Sat 12 Sep.", "fact": "2015-09-11T01:59:01Z → 2015-09-12T04:12:43Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:41–00:29 on the 10th, 23:41–00:29 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 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. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12584 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Friday 11 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": "2015-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-11", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Friday 11 September. Caturdaśī runs from 03:59 on Fri 11 Sep to 06:13 on Sat 12 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-09-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1309, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2015-09-13T08:41:16+02:00", "utc": "2015-09-13T06:41:16Z", "ms": 1442126475862.7202 }, "end": { "local": "2015-09-14T11:18:38+02:00", "utc": "2015-09-14T09:18:38Z", "ms": 1442222317931.6755 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-13T08:41:16+02:00", "utc": "2015-09-13T06:41:16Z", "ms": 1442126475862.7202 }, "end": { "local": "2015-09-14T11:18:38+02:00", "utc": "2015-09-14T09:18:38Z", "ms": 1442222317931.6755 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-13", "window": { "start": { "local": "2015-09-13T11:40:48+02:00", "utc": "2015-09-13T09:40:48Z", "ms": 1442137247840.793 }, "end": { "local": "2015-09-13T12:28:48+02:00", "utc": "2015-09-13T10:28:48Z", "ms": 1442140127840.793 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-09-14", "window": { "start": { "local": "2015-09-14T11:40:27+02:00", "utc": "2015-09-14T09:40:27Z", "ms": 1442223626675.774 }, "end": { "local": "2015-09-14T12:28:27+02:00", "utc": "2015-09-14T10:28:27Z", "ms": 1442226506675.774 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 08:41 on Sun 13 Sep to 11:19 on Mon 14 Sep.", "fact": "2015-09-13T06:41:16Z → 2015-09-14T09:18:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 13th, 11:40–12:28 on the 14th.", "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 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1309 s" }, { "step": "ruling", "text": "Rudra Vrata, Soweto, 2015: Sunday 13 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-13", "confidence": "determinate" } ], "quote": "In Soweto, Rudra Vrata 2015 falls on Sunday 13 September. Pratipadā runs from 08:41 on Sun 13 Sep to 11:19 on Mon 14 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5394, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2015-09-15T13:58:00+02:00", "utc": "2015-09-15T11:58:00Z", "ms": 1442318279574.9033 }, "end": { "local": "2015-09-16T16:31:34+02:00", "utc": "2015-09-16T14:31:34Z", "ms": 1442413893831.066 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-15T13:58:00+02:00", "utc": "2015-09-15T11:58:00Z", "ms": 1442318279574.9033 }, "end": { "local": "2015-09-16T16:31:34+02:00", "utc": "2015-09-16T14:31:34Z", "ms": 1442413893831.066 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-15", "window": { "start": { "local": "2015-09-15T11:40:05+02:00", "utc": "2015-09-15T09:40:05Z", "ms": 1442310005445.918 }, "end": { "local": "2015-09-15T12:28:05+02:00", "utc": "2015-09-15T10:28:05Z", "ms": 1442312885445.918 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-16", "window": { "start": { "local": "2015-09-16T11:39:44+02:00", "utc": "2015-09-16T09:39:44Z", "ms": 1442396384168.033 }, "end": { "local": "2015-09-16T12:27:44+02:00", "utc": "2015-09-16T10:27:44Z", "ms": 1442399264168.033 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:58 on Tue 15 Sep to 16:32 on Wed 16 Sep.", "fact": "2015-09-15T11:58:00Z → 2015-09-16T14:31:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 15th, 11:40–12:28 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 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5394 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Soweto, 2015: Wednesday 16 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "haritalika-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-16", "confidence": "determinate" } ], "quote": "In Soweto, Haritālikā Vrata (Hartalika Teej) 2015 falls on Wednesday 16 September. Tṛtīyā runs from 13:58 on Tue 15 Sep to 16:32 on Wed 16 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14630, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-09-16T16:31:34+02:00", "utc": "2015-09-16T14:31:34Z", "ms": 1442413893831.066 }, "end": { "local": "2015-09-17T18:50:41+02:00", "utc": "2015-09-17T16:50:41Z", "ms": 1442508640966.9636 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-16T16:31:34+02:00", "utc": "2015-09-16T14:31:34Z", "ms": 1442413893831.066 }, "end": { "local": "2015-09-17T18:50:41+02:00", "utc": "2015-09-17T16:50:41Z", "ms": 1442508640966.9636 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-16", "window": { "start": { "local": "2015-09-16T11:39:44+02:00", "utc": "2015-09-16T09:39:44Z", "ms": 1442396384168.033 }, "end": { "local": "2015-09-16T12:27:44+02:00", "utc": "2015-09-16T10:27:44Z", "ms": 1442399264168.033 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-17", "window": { "start": { "local": "2015-09-17T11:39:23+02:00", "utc": "2015-09-17T09:39:23Z", "ms": 1442482762859.2236 }, "end": { "local": "2015-09-17T12:27:23+02:00", "utc": "2015-09-17T10:27:23Z", "ms": 1442485642859.2236 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:32 on Wed 16 Sep to 18:51 on Thu 17 Sep.", "fact": "2015-09-16T14:31:34Z → 2015-09-17T16:50:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 16th, 11:39–12:27 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 14630 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Soweto, 2015: Thursday 17 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": "2015-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-17", "confidence": "determinate" } ], "quote": "In Soweto, Gaṇeśa Caturthī 2015 falls on Thursday 17 September. Caturthī runs from 16:32 on Wed 16 Sep to 18:51 on Thu 17 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22998, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2015-09-17T18:50:41+02:00", "utc": "2015-09-17T16:50:41Z", "ms": 1442508640966.9636 }, "end": { "local": "2015-09-18T20:46:16+02:00", "utc": "2015-09-18T18:46:16Z", "ms": 1442601976149.013 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-17T18:50:41+02:00", "utc": "2015-09-17T16:50:41Z", "ms": 1442508640966.9636 }, "end": { "local": "2015-09-18T20:46:16+02:00", "utc": "2015-09-18T18:46:16Z", "ms": 1442601976149.013 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-17", "window": { "start": { "local": "2015-09-17T11:39:23+02:00", "utc": "2015-09-17T09:39:23Z", "ms": 1442482762859.2236 }, "end": { "local": "2015-09-17T12:27:23+02:00", "utc": "2015-09-17T10:27:23Z", "ms": 1442485642859.2236 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-18", "window": { "start": { "local": "2015-09-18T11:39:02+02:00", "utc": "2015-09-18T09:39:02Z", "ms": 1442569141536.931 }, "end": { "local": "2015-09-18T12:27:02+02:00", "utc": "2015-09-18T10:27:02Z", "ms": 1442572021536.931 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 18:51 on Thu 17 Sep to 20:46 on Fri 18 Sep.", "fact": "2015-09-17T16:50:41Z → 2015-09-18T18:46:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 17th, 11:39–12:27 on the 18th.", "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 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 22998 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Soweto, 2015: Friday 18 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": "2015-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-18", "confidence": "determinate" } ], "quote": "In Soweto, Ṛṣi Pañcamī 2015 falls on Friday 18 September. Pañcamī runs from 18:51 on Thu 17 Sep to 20:46 on Fri 18 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29955, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2015-09-18T20:46:16+02:00", "utc": "2015-09-18T18:46:16Z", "ms": 1442601976149.013 }, "end": { "local": "2015-09-19T22:09:39+02:00", "utc": "2015-09-19T20:09:39Z", "ms": 1442693378931.4817 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-18T20:46:16+02:00", "utc": "2015-09-18T18:46:16Z", "ms": 1442601976149.013 }, "end": { "local": "2015-09-19T22:09:39+02:00", "utc": "2015-09-19T20:09:39Z", "ms": 1442693378931.4817 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-18", "window": { "start": { "local": "2015-09-18T11:39:02+02:00", "utc": "2015-09-18T09:39:02Z", "ms": 1442569141536.931 }, "end": { "local": "2015-09-18T12:27:02+02:00", "utc": "2015-09-18T10:27:02Z", "ms": 1442572021536.931 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-19", "window": { "start": { "local": "2015-09-19T11:38:40+02:00", "utc": "2015-09-19T09:38:40Z", "ms": 1442655520218.9731 }, "end": { "local": "2015-09-19T12:26:40+02:00", "utc": "2015-09-19T10:26:40Z", "ms": 1442658400218.9731 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:46 on Fri 18 Sep to 22:10 on Sat 19 Sep.", "fact": "2015-09-18T18:46:16Z → 2015-09-19T20:09:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 18th, 11:39–12:27 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 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29955 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Soweto, 2015: Saturday 19 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": "2015-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-19", "confidence": "determinate" } ], "quote": "In Soweto, Sūrya Ṣaṣṭhī (Bhādrapada) 2015 falls on Saturday 19 September. Ṣaṣṭhī runs from 20:46 on Fri 18 Sep to 22:10 on Sat 19 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34979, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2015-09-19T22:09:39+02:00", "utc": "2015-09-19T20:09:39Z", "ms": 1442693378931.4817 }, "end": { "local": "2015-09-20T22:53:34+02:00", "utc": "2015-09-20T20:53:34Z", "ms": 1442782413835.7053 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-19T22:09:39+02:00", "utc": "2015-09-19T20:09:39Z", "ms": 1442693378931.4817 }, "end": { "local": "2015-09-20T22:53:34+02:00", "utc": "2015-09-20T20:53:34Z", "ms": 1442782413835.7053 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-19", "window": { "start": { "local": "2015-09-19T11:38:40+02:00", "utc": "2015-09-19T09:38:40Z", "ms": 1442655520218.9731 }, "end": { "local": "2015-09-19T12:26:40+02:00", "utc": "2015-09-19T10:26:40Z", "ms": 1442658400218.9731 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-20", "window": { "start": { "local": "2015-09-20T11:38:19+02:00", "utc": "2015-09-20T09:38:19Z", "ms": 1442741898923.6033 }, "end": { "local": "2015-09-20T12:26:19+02:00", "utc": "2015-09-20T10:26:19Z", "ms": 1442744778923.6033 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 22:10 on Sat 19 Sep to 22:54 on Sun 20 Sep.", "fact": "2015-09-19T20:09:39Z → 2015-09-20T20:53:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 19th, 11:38–12:26 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 34979 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Soweto, 2015: Sunday 20 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": "2015-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-20", "confidence": "determinate" } ], "quote": "In Soweto, Muktābharaṇa Vrata 2015 falls on Sunday 20 September. Saptamī runs from 22:10 on Sat 19 Sep to 22:54 on Sun 20 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37628, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-09-20T22:53:34+02:00", "utc": "2015-09-20T20:53:34Z", "ms": 1442782413835.7053 }, "end": { "local": "2015-09-21T22:53:05+02:00", "utc": "2015-09-21T20:53:05Z", "ms": 1442868785350.848 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-20T22:53:34+02:00", "utc": "2015-09-20T20:53:34Z", "ms": 1442782413835.7053 }, "end": { "local": "2015-09-21T22:53:05+02:00", "utc": "2015-09-21T20:53:05Z", "ms": 1442868785350.848 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-20", "window": { "start": { "local": "2015-09-20T11:38:19+02:00", "utc": "2015-09-20T09:38:19Z", "ms": 1442741898923.6033 }, "end": { "local": "2015-09-20T12:26:19+02:00", "utc": "2015-09-20T10:26:19Z", "ms": 1442744778923.6033 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-21", "window": { "start": { "local": "2015-09-21T11:37:58+02:00", "utc": "2015-09-21T09:37:58Z", "ms": 1442828277669.5854 }, "end": { "local": "2015-09-21T12:25:58+02:00", "utc": "2015-09-21T10:25:58Z", "ms": 1442831157669.5854 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 22:54 on Sun 20 Sep to 22:53 on Mon 21 Sep.", "fact": "2015-09-20T20:53:34Z → 2015-09-21T20:53:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 20th, 11:38–12:26 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37628 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Soweto, 2015: Monday 21 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": "2015-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-21", "confidence": "determinate" } ], "quote": "In Soweto, Rādhāṣṭamī 2015 falls on Monday 21 September. Aṣṭamī runs from 22:54 on Sun 20 Sep to 22:53 on Mon 21 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-09-24", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33766, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-09-23T20:33:56+02:00", "utc": "2015-09-23T18:33:56Z", "ms": 1443033235756.3083 }, "end": { "local": "2015-09-24T18:20:02+02:00", "utc": "2015-09-24T16:20:02Z", "ms": 1443111601729.1338 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-23T20:33:56+02:00", "utc": "2015-09-23T18:33:56Z", "ms": 1443033235756.3083 }, "end": { "local": "2015-09-24T18:20:02+02:00", "utc": "2015-09-24T16:20:02Z", "ms": 1443111601729.1338 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-09-24", "window": { "start": { "local": "2015-09-24T05:56:41+02:00", "utc": "2015-09-24T03:56:41Z", "ms": 1443067001360.4944 }, "end": { "local": "2015-09-24T05:56:41+02:00", "utc": "2015-09-24T03:56:41Z", "ms": 1443067001360.4944 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-09-25", "window": { "start": { "local": "2015-09-25T05:55:34+02:00", "utc": "2015-09-25T03:55:34Z", "ms": 1443153334319.6228 }, "end": { "local": "2015-09-25T05:55:34+02:00", "utc": "2015-09-25T03:55:34Z", "ms": 1443153334319.6228 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:34 on Wed 23 Sep to 18:20 on Thu 24 Sep.", "fact": "2015-09-23T18:33:56Z → 2015-09-24T16:20:02Z" }, { "step": "kaala", "text": "Sunrise is at 05:57 on the 24th and 05:56 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 33766 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Soweto, 2015: Thursday 24 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": "2015-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-24", "confidence": "determinate" } ], "quote": "In Soweto, Parivartanī Ekādaśī 2015 falls on Thursday 24 September. Ekādaśī runs from 20:34 on Wed 23 Sep to 18:20 on Thu 24 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11158, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2015-09-24T18:20:02+02:00", "utc": "2015-09-24T16:20:02Z", "ms": 1443111601729.1338 }, "end": { "local": "2015-09-25T15:30:32+02:00", "utc": "2015-09-25T13:30:32Z", "ms": 1443187831550.6455 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-24T18:20:02+02:00", "utc": "2015-09-24T16:20:02Z", "ms": 1443111601729.1338 }, "end": { "local": "2015-09-25T15:30:32+02:00", "utc": "2015-09-25T13:30:32Z", "ms": 1443187831550.6455 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-09-24", "window": { "start": { "local": "2015-09-24T11:36:54+02:00", "utc": "2015-09-24T09:36:54Z", "ms": 1443087414353.624 }, "end": { "local": "2015-09-24T12:24:54+02:00", "utc": "2015-09-24T10:24:54Z", "ms": 1443090294353.624 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-09-25", "window": { "start": { "local": "2015-09-25T11:36:33+02:00", "utc": "2015-09-25T09:36:33Z", "ms": 1443173793467.64 }, "end": { "local": "2015-09-25T12:24:33+02:00", "utc": "2015-09-25T10:24:33Z", "ms": 1443176673467.64 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:20 on Thu 24 Sep to 15:31 on Fri 25 Sep.", "fact": "2015-09-24T16:20:02Z → 2015-09-25T13:30:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 24th, 11:37–12:25 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11158 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Soweto, 2015: Friday 25 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": "2015-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-25", "confidence": "determinate" } ], "quote": "In Soweto, Vāmana Jayantī 2015 falls on Friday 25 September. Dvādaśī runs from 18:20 on Thu 24 Sep to 15:31 on Fri 25 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/pradosha-vrata?on=2015-09-25", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9301, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-09-25T15:30:32+02:00", "utc": "2015-09-25T13:30:32Z", "ms": 1443187831550.6455 }, "end": { "local": "2015-09-26T12:13:06+02:00", "utc": "2015-09-26T10:13:06Z", "ms": 1443262386487.4126 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-25T15:30:32+02:00", "utc": "2015-09-25T13:30:32Z", "ms": 1443187831550.6455 }, "end": { "local": "2015-09-26T12:13:06+02:00", "utc": "2015-09-26T10:13:06Z", "ms": 1443262386487.4126 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-09-25", "window": { "start": { "local": "2015-09-25T18:05:33+02:00", "utc": "2015-09-25T16:05:33Z", "ms": 1443197132615.657 }, "end": { "local": "2015-09-25T19:40:04+02:00", "utc": "2015-09-25T17:40:04Z", "ms": 1443202803920.0415 } }, "covered_min": 95, "window_min": 95, "qualifies": true }, { "local_date": "2015-09-26", "window": { "start": { "local": "2015-09-26T18:05:58+02:00", "utc": "2015-09-26T16:05:58Z", "ms": 1443283558060.5178 }, "end": { "local": "2015-09-26T19:40:17+02:00", "utc": "2015-09-26T17:40:17Z", "ms": 1443289217069.4392 } }, "covered_min": 0, "window_min": 94, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:31 on Fri 25 Sep to 12:13 on Sat 26 Sep.", "fact": "2015-09-25T13:30:32Z → 2015-09-26T10:13:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:06–19:40 on the 25th, 18:06–19:40 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 95 of 95 minutes on the 25th and 0 of 94 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 9301 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Friday 25 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": "2015-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-25", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Friday 25 September. Trayodaśī runs from 15:31 on Fri 25 Sep to 12:13 on Sat 26 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-09-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 998, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-09-26T12:13:06+02:00", "utc": "2015-09-26T10:13:06Z", "ms": 1443262386487.4126 }, "end": { "local": "2015-09-27T08:36:36+02:00", "utc": "2015-09-27T06:36:36Z", "ms": 1443335795738.3413 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2015-09-26T12:13:06+02:00", "utc": "2015-09-26T10:13:06Z", "ms": 1443262386487.4126 }, "end": { "local": "2015-09-27T08:36:36+02:00", "utc": "2015-09-27T06:36:36Z", "ms": 1443335795738.3413 } }, "kaala": "udaya-3", "days": [ { "local_date": "2015-09-26", "window": { "start": { "local": "2015-09-26T05:54:27+02:00", "utc": "2015-09-26T03:54:27Z", "ms": 1443239667398.5415 }, "end": { "local": "2015-09-26T08:20:46+02:00", "utc": "2015-09-26T06:20:46Z", "ms": 1443248445530.9368 } }, "covered_min": 0, "window_min": 146, "qualifies": false }, { "local_date": "2015-09-27", "window": { "start": { "local": "2015-09-27T05:53:21+02:00", "utc": "2015-09-27T03:53:21Z", "ms": 1443326000627.4287 }, "end": { "local": "2015-09-27T08:19:57+02:00", "utc": "2015-09-27T06:19:57Z", "ms": 1443334797242.0596 } }, "covered_min": 147, "window_min": 147, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:13 on Sat 26 Sep to 08:37 on Sun 27 Sep.", "fact": "2015-09-26T10:13:06Z → 2015-09-27T06:36:36Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:54–08:21 on the 26th, 05:53–08:20 on the 27th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 0 of 146 minutes on the 26th and 147 of 147 on the 27th.", "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 998 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Soweto, 2015: Sunday 27 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": "2015-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-27", "confidence": "determinate" } ], "quote": "In Soweto, Ananta Caturdaśī 2015 falls on Sunday 27 September. Caturdaśī runs from 12:13 on Sat 26 Sep to 08:37 on Sun 27 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-09-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9617, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-09-30T18:13:15+02:00", "utc": "2015-09-30T16:13:15Z", "ms": 1443629595150.923 }, "end": { "local": "2015-10-01T15:26:18+02:00", "utc": "2015-10-01T13:26:18Z", "ms": 1443705977994.897 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-09-30T18:13:15+02:00", "utc": "2015-09-30T16:13:15Z", "ms": 1443629595150.923 }, "end": { "local": "2015-10-01T15:26:18+02:00", "utc": "2015-10-01T13:26:18Z", "ms": 1443705977994.897 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-09-30", "window": { "start": { "local": "2015-09-30T20:53:32+02:00", "utc": "2015-09-30T18:53:32Z", "ms": 1443639212376.7708 }, "end": { "local": "2015-09-30T20:53:32+02:00", "utc": "2015-09-30T18:53:32Z", "ms": 1443639212376.7708 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-10-01", "window": { "start": { "local": "2015-10-01T21:56:44+02:00", "utc": "2015-10-01T19:56:44Z", "ms": 1443729404205.626 }, "end": { "local": "2015-10-01T21:56:44+02:00", "utc": "2015-10-01T19:56:44Z", "ms": 1443729404205.626 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:13 on Wed 30 Sep to 15:26 on Thu 1 Oct.", "fact": "2015-09-30T16:13:15Z → 2015-10-01T13:26:18Z" }, { "step": "kaala", "text": "Moonrise is at 20:54 on the 30th and 21:57 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9617 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Wednesday 30 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": "2015-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-09-30", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Wednesday 30 September. Caturthī runs from 18:13 on Wed 30 Sep to 15:26 on Thu 1 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-09-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34845, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2015-10-02T13:16:06+02:00", "utc": "2015-10-02T11:16:06Z", "ms": 1443784566044.9592 }, "end": { "local": "2015-10-03T11:48:51+02:00", "utc": "2015-10-03T09:48:51Z", "ms": 1443865730983.2085 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-02T13:16:06+02:00", "utc": "2015-10-02T11:16:06Z", "ms": 1443784566044.9592 }, "end": { "local": "2015-10-03T11:48:51+02:00", "utc": "2015-10-03T09:48:51Z", "ms": 1443865730983.2085 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-10-02", "window": { "start": { "local": "2015-10-02T22:56:51+02:00", "utc": "2015-10-02T20:56:51Z", "ms": 1443819410650.894 }, "end": { "local": "2015-10-02T22:56:51+02:00", "utc": "2015-10-02T20:56:51Z", "ms": 1443819410650.894 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-10-03", "window": { "start": { "local": "2015-10-03T23:52:59+02:00", "utc": "2015-10-03T21:52:59Z", "ms": 1443909178974.3005 }, "end": { "local": "2015-10-03T23:52:59+02:00", "utc": "2015-10-03T21:52:59Z", "ms": 1443909178974.3005 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 13:16 on Fri 2 Oct to 11:49 on Sat 3 Oct.", "fact": "2015-10-02T11:16:06Z → 2015-10-03T09:48:51Z" }, { "step": "kaala", "text": "Moonrise is at 22:57 on the 2nd and 23:53 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is on the 2nd and is not on the 3rd.", "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 34845 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Soweto, 2015: Friday 2 October.", "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": "2015-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-02", "confidence": "determinate" } ], "quote": "In Soweto, Candra Ṣaṣṭhī 2015 falls on Friday 2 October. Ṣaṣṭhī runs from 13:16 on Fri 2 Oct to 11:49 on Sat 3 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24867, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-10-04T11:08:22+02:00", "utc": "2015-10-04T09:08:22Z", "ms": 1443949702218.466 }, "end": { "local": "2015-10-05T11:15:31+02:00", "utc": "2015-10-05T09:15:31Z", "ms": 1444036531475.8591 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-04T11:08:22+02:00", "utc": "2015-10-04T09:08:22Z", "ms": 1443949702218.466 }, "end": { "local": "2015-10-05T11:15:31+02:00", "utc": "2015-10-05T09:15:31Z", "ms": 1444036531475.8591 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-10-04", "window": { "start": { "local": "2015-10-04T18:09:30+02:00", "utc": "2015-10-04T16:09:30Z", "ms": 1443974970288.1367 }, "end": { "local": "2015-10-04T19:42:11+02:00", "utc": "2015-10-04T17:42:11Z", "ms": 1443980530992.4224 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "2015-10-05", "window": { "start": { "local": "2015-10-05T18:09:58+02:00", "utc": "2015-10-05T16:09:58Z", "ms": 1444061398160.065 }, "end": { "local": "2015-10-05T19:42:27+02:00", "utc": "2015-10-05T17:42:27Z", "ms": 1444066946608.6948 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:08 on Sun 4 Oct to 11:16 on Mon 5 Oct.", "fact": "2015-10-04T09:08:22Z → 2015-10-05T09:15:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:10–19:42 on the 4th, 18:10–19:42 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 93 of 93 minutes on the 4th and 0 of 92 on the 5th.", "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 24867 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Soweto, 2015: Sunday 4 October.", "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": "2015-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-04", "confidence": "determinate" } ], "quote": "In Soweto, Jitāṣṭamī (Jitiya) 2015 falls on Sunday 4 October. Aṣṭamī runs from 11:08 on Sun 4 Oct to 11:16 on Mon 5 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37851, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-10-04T11:08:22+02:00", "utc": "2015-10-04T09:08:22Z", "ms": 1443949702218.466 }, "end": { "local": "2015-10-05T11:15:31+02:00", "utc": "2015-10-05T09:15:31Z", "ms": 1444036531475.8591 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-04T11:08:22+02:00", "utc": "2015-10-04T09:08:22Z", "ms": 1443949702218.466 }, "end": { "local": "2015-10-05T11:15:31+02:00", "utc": "2015-10-05T09:15:31Z", "ms": 1444036531475.8591 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-10-03", "window": { "start": { "local": "2015-10-03T23:52:59+02:00", "utc": "2015-10-03T21:52:59Z", "ms": 1443909178974.3005 }, "end": { "local": "2015-10-03T23:52:59+02:00", "utc": "2015-10-03T21:52:59Z", "ms": 1443909178974.3005 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-10-04", "window": { "start": { "local": "2015-10-05T00:44:41+02:00", "utc": "2015-10-04T22:44:41Z", "ms": 1443998680828.0256 }, "end": { "local": "2015-10-05T00:44:41+02:00", "utc": "2015-10-04T22:44:41Z", "ms": 1443998680828.0256 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:08 on Sun 4 Oct to 11:16 on Mon 5 Oct.", "fact": "2015-10-04T09:08:22Z → 2015-10-05T09:15:31Z" }, { "step": "kaala", "text": "Moonrise is at 23:53 on the 3rd and 00:45 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 3rd and is on the 4th.", "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 37851 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Soweto, 2015: Sunday 4 October.", "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": "2015-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-04", "confidence": "determinate" } ], "quote": "In Soweto, Mahālakṣmī Vrata Samāpana 2015 falls on Sunday 4 October. Aṣṭamī runs from 11:08 on Sun 4 Oct to 11:16 on Mon 5 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-10-08", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28646, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-10-07T13:39:54+02:00", "utc": "2015-10-07T11:39:54Z", "ms": 1444217993563.2336 }, "end": { "local": "2015-10-08T15:43:28+02:00", "utc": "2015-10-08T13:43:28Z", "ms": 1444311808256.8157 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-07T13:39:54+02:00", "utc": "2015-10-07T11:39:54Z", "ms": 1444217993563.2336 }, "end": { "local": "2015-10-08T15:43:28+02:00", "utc": "2015-10-08T13:43:28Z", "ms": 1444311808256.8157 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-10-07", "window": { "start": { "local": "2015-10-07T05:42:28+02:00", "utc": "2015-10-07T03:42:28Z", "ms": 1444189347925.039 }, "end": { "local": "2015-10-07T05:42:28+02:00", "utc": "2015-10-07T03:42:28Z", "ms": 1444189347925.039 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-10-08", "window": { "start": { "local": "2015-10-08T05:41:25+02:00", "utc": "2015-10-08T03:41:25Z", "ms": 1444275684797.3704 }, "end": { "local": "2015-10-08T05:41:25+02:00", "utc": "2015-10-08T03:41:25Z", "ms": 1444275684797.3704 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:40 on Wed 7 Oct to 15:43 on Thu 8 Oct.", "fact": "2015-10-07T11:39:54Z → 2015-10-08T13:43:28Z" }, { "step": "kaala", "text": "Sunrise is at 05:42 on the 7th and 05:41 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 7th and is on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28646 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Soweto, 2015: Thursday 8 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": "2015-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-08", "confidence": "determinate" } ], "quote": "In Soweto, Indirā Ekādaśī 2015 falls on Thursday 8 October. Ekādaśī runs from 13:40 on Wed 7 Oct to 15:43 on Thu 8 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-10-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-10-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-09", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 164, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-10-09T18:09:09+02:00", "utc": "2015-10-09T16:09:09Z", "ms": 1444406948725.5479 }, "end": { "local": "2015-10-10T20:47:12+02:00", "utc": "2015-10-10T18:47:12Z", "ms": 1444502832002.3208 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-09T18:09:09+02:00", "utc": "2015-10-09T16:09:09Z", "ms": 1444406948725.5479 }, "end": { "local": "2015-10-10T20:47:12+02:00", "utc": "2015-10-10T18:47:12Z", "ms": 1444502832002.3208 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-10-09", "window": { "start": { "local": "2015-10-09T18:11:53+02:00", "utc": "2015-10-09T16:11:53Z", "ms": 1444407113186.2344 }, "end": { "local": "2015-10-09T19:43:33+02:00", "utc": "2015-10-09T17:43:33Z", "ms": 1444412612769.6611 } }, "covered_min": 92, "window_min": 92, "qualifies": true }, { "local_date": "2015-10-10", "window": { "start": { "local": "2015-10-10T18:12:23+02:00", "utc": "2015-10-10T16:12:23Z", "ms": 1444493542873.7417 }, "end": { "local": "2015-10-10T19:43:50+02:00", "utc": "2015-10-10T17:43:50Z", "ms": 1444499030291.2825 } }, "covered_min": 91, "window_min": 91, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:09 on Fri 9 Oct to 20:47 on Sat 10 Oct.", "fact": "2015-10-09T16:09:09Z → 2015-10-10T18:47:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:12–19:44 on the 9th, 18:12–19:44 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 92 of 92 minutes on the 9th and 91 of 91 on the 10th.", "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 164 s < 300 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Friday 9 October.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-10-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-09", "confidence": "boundary" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Friday 9 October. Trayodaśī runs from 18:09 on Fri 9 Oct to 20:47 on Sat 10 Oct and covers all of pradoṣa that evening. It also reaches the next evening for 91 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 44 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-10-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-10-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-10", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 147, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-10-10T20:47:12+02:00", "utc": "2015-10-10T18:47:12Z", "ms": 1444502832002.3208 }, "end": { "local": "2015-10-11T23:28:38+02:00", "utc": "2015-10-11T21:28:38Z", "ms": 1444598918383.9473 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-10T20:47:12+02:00", "utc": "2015-10-10T18:47:12Z", "ms": 1444502832002.3208 }, "end": { "local": "2015-10-11T23:28:38+02:00", "utc": "2015-10-11T21:28:38Z", "ms": 1444598918383.9473 } }, "kaala": "nishita", "days": [ { "local_date": "2015-10-10", "window": { "start": { "local": "2015-10-10T23:31:21+02:00", "utc": "2015-10-10T21:31:21Z", "ms": 1444512680689.5195 }, "end": { "local": "2015-10-11T00:19:21+02:00", "utc": "2015-10-10T22:19:21Z", "ms": 1444515560689.5195 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-10-11", "window": { "start": { "local": "2015-10-11T23:31:05+02:00", "utc": "2015-10-11T21:31:05Z", "ms": 1444599065236.3757 }, "end": { "local": "2015-10-12T00:19:05+02:00", "utc": "2015-10-11T22:19:05Z", "ms": 1444601945236.3757 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:47 on Sat 10 Oct to 23:29 on Sun 11 Oct.", "fact": "2015-10-10T18:47:12Z → 2015-10-11T21:28:38Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:31–00:19 on the 10th, 23:31–00:19 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 147 s < 300 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Saturday 10 October.", "fact": "confidence: boundary (margin)" } ], "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": "2015-10-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-10", "confidence": "boundary" } ], "quote": "In Soweto, Śivarātri 2015 falls on Saturday 10 October. Caturdaśī runs from 20:47 on Sat 10 Oct to 23:29 on Sun 11 Oct and covers all of niśītha that night. It is 2 min 27 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-10-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28000, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2015-10-11T23:28:38+02:00", "utc": "2015-10-11T21:28:38Z", "ms": 1444598918383.9473 }, "end": { "local": "2015-10-13T02:05:43+02:00", "utc": "2015-10-13T00:05:43Z", "ms": 1444694742629.71 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-11T23:28:38+02:00", "utc": "2015-10-11T21:28:38Z", "ms": 1444598918383.9473 }, "end": { "local": "2015-10-13T02:05:43+02:00", "utc": "2015-10-13T00:05:43Z", "ms": 1444694742629.71 } }, "kaala": "aparahna", "days": [ { "local_date": "2015-10-11", "window": { "start": { "local": "2015-10-11T13:11:03+02:00", "utc": "2015-10-11T11:11:03Z", "ms": 1444561863171.9172 }, "end": { "local": "2015-10-11T15:41:58+02:00", "utc": "2015-10-11T13:41:58Z", "ms": 1444570918060.7908 } }, "covered_min": 0, "window_min": 151, "qualifies": false }, { "local_date": "2015-10-12", "window": { "start": { "local": "2015-10-12T13:10:57+02:00", "utc": "2015-10-12T11:10:57Z", "ms": 1444648257061.7258 }, "end": { "local": "2015-10-12T15:42:10+02:00", "utc": "2015-10-12T13:42:10Z", "ms": 1444657330241.272 } }, "covered_min": 151, "window_min": 151, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 23:29 on Sun 11 Oct to 02:06 on Tue 13 Oct.", "fact": "2015-10-11T21:28:38Z → 2015-10-13T00:05:43Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:11–15:42 on the 11th, 13:11–15:42 on the 12th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 0 of 151 minutes on the 11th and 151 of 151 on the 12th.", "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 28000 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Soweto, 2015: Monday 12 October.", "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": "2015-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-12", "confidence": "determinate" } ], "quote": "In Soweto, Mahālaya Amāvāsyā 2015 falls on Monday 12 October. Amāvasyā runs from 23:29 on Sun 11 Oct to 02:06 on Tue 13 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25134, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2015-10-13T02:05:43+02:00", "utc": "2015-10-13T00:05:43Z", "ms": 1444694742629.71 }, "end": { "local": "2015-10-14T04:31:57+02:00", "utc": "2015-10-14T02:31:57Z", "ms": 1444789917466.0474 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-13T02:05:43+02:00", "utc": "2015-10-13T00:05:43Z", "ms": 1444694742629.71 }, "end": { "local": "2015-10-14T04:31:57+02:00", "utc": "2015-10-14T02:31:57Z", "ms": 1444789917466.0474 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-10-13", "window": { "start": { "local": "2015-10-13T11:31:06+02:00", "utc": "2015-10-13T09:31:06Z", "ms": 1444728665716.8716 }, "end": { "local": "2015-10-13T12:19:06+02:00", "utc": "2015-10-13T10:19:06Z", "ms": 1444731545716.8716 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-10-14", "window": { "start": { "local": "2015-10-14T11:30:51+02:00", "utc": "2015-10-14T09:30:51Z", "ms": 1444815051477.4885 }, "end": { "local": "2015-10-14T12:18:51+02:00", "utc": "2015-10-14T10:18:51Z", "ms": 1444817931477.4885 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:06 on Tue 13 Oct to 04:32 on Wed 14 Oct.", "fact": "2015-10-13T00:05:43Z → 2015-10-14T02:31:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:31–12:19 on the 13th, 11:31–12:19 on the 14th.", "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 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25134 s" }, { "step": "ruling", "text": "Navarātrārambha, Soweto, 2015: Tuesday 13 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-13", "confidence": "determinate" } ], "quote": "In Soweto, Navarātrārambha (Navratri) 2015 falls on Tuesday 13 October. Pratipadā runs from 02:06 on Tue 13 Oct to 04:32 on Wed 14 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-10-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5744, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-10-16T08:30:56+02:00", "utc": "2015-10-16T06:30:56Z", "ms": 1444977056323.2773 }, "end": { "local": "2015-10-17T09:54:28+02:00", "utc": "2015-10-17T07:54:28Z", "ms": 1445068468094.7793 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-16T08:30:56+02:00", "utc": "2015-10-16T06:30:56Z", "ms": 1444977056323.2773 }, "end": { "local": "2015-10-17T09:54:28+02:00", "utc": "2015-10-17T07:54:28Z", "ms": 1445068468094.7793 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-10-16", "window": { "start": { "local": "2015-10-16T11:30:25+02:00", "utc": "2015-10-16T09:30:25Z", "ms": 1444987824605.2886 }, "end": { "local": "2015-10-16T12:18:25+02:00", "utc": "2015-10-16T10:18:25Z", "ms": 1444990704605.2886 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-10-17", "window": { "start": { "local": "2015-10-17T11:30:12+02:00", "utc": "2015-10-17T09:30:12Z", "ms": 1445074212001.622 }, "end": { "local": "2015-10-17T12:18:12+02:00", "utc": "2015-10-17T10:18:12Z", "ms": 1445077092001.622 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:31 on Fri 16 Oct to 09:54 on Sat 17 Oct.", "fact": "2015-10-16T06:30:56Z → 2015-10-17T07:54:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 16th, 11:30–12:18 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5744 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Friday 16 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": "2015-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-16", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Friday 16 October. Caturthī runs from 08:31 on Fri 16 Oct to 09:54 on Sat 17 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-10-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16353, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2015-10-19T11:08:58+02:00", "utc": "2015-10-19T09:08:58Z", "ms": 1445245737739.7136 }, "end": { "local": "2015-10-20T10:53:19+02:00", "utc": "2015-10-20T08:53:19Z", "ms": 1445331198888.6301 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-19T11:08:58+02:00", "utc": "2015-10-19T09:08:58Z", "ms": 1445245737739.7136 }, "end": { "local": "2015-10-20T10:53:19+02:00", "utc": "2015-10-20T08:53:19Z", "ms": 1445331198888.6301 } }, "kaala": "udaya-1", "days": [ { "local_date": "2015-10-19", "window": { "start": { "local": "2015-10-19T05:30:29+02:00", "utc": "2015-10-19T03:30:29Z", "ms": 1445225428833.5513 }, "end": { "local": "2015-10-19T06:21:35+02:00", "utc": "2015-10-19T04:21:35Z", "ms": 1445228495459.8887 } }, "covered_min": 0, "window_min": 51, "qualifies": false }, { "local_date": "2015-10-20", "window": { "start": { "local": "2015-10-20T05:29:33+02:00", "utc": "2015-10-20T03:29:33Z", "ms": 1445311773349.7222 }, "end": { "local": "2015-10-20T06:20:46+02:00", "utc": "2015-10-20T04:20:46Z", "ms": 1445314845928.8267 } }, "covered_min": 51, "window_min": 51, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 11:09 on Mon 19 Oct to 10:53 on Tue 20 Oct.", "fact": "2015-10-19T09:08:58Z → 2015-10-20T08:53:19Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:30–06:22 on the 19th, 05:30–06:21 on the 20th.", "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 0 of 51 minutes on the 19th and 51 of 51 on the 20th.", "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 16353 s" }, { "step": "ruling", "text": "Durgā Saptamī, Soweto, 2015: Tuesday 20 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": "2015-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-20", "confidence": "determinate" } ], "quote": "In Soweto, Durgā Saptamī 2015 falls on Tuesday 20 October. Saptamī runs from 11:09 on Mon 19 Oct to 10:53 on Tue 20 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2179, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-10-20T10:53:19+02:00", "utc": "2015-10-20T08:53:19Z", "ms": 1445331198888.6301 }, "end": { "local": "2015-10-21T09:59:50+02:00", "utc": "2015-10-21T07:59:50Z", "ms": 1445414390427.9941 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-20T10:53:19+02:00", "utc": "2015-10-20T08:53:19Z", "ms": 1445331198888.6301 }, "end": { "local": "2015-10-21T09:59:50+02:00", "utc": "2015-10-21T07:59:50Z", "ms": 1445414390427.9941 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-10-20", "window": { "start": { "local": "2015-10-20T11:29:38+02:00", "utc": "2015-10-20T09:29:38Z", "ms": 1445333377693.0059 }, "end": { "local": "2015-10-20T12:17:38+02:00", "utc": "2015-10-20T10:17:38Z", "ms": 1445336257693.0059 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-10-21", "window": { "start": { "local": "2015-10-21T11:29:27+02:00", "utc": "2015-10-21T09:29:27Z", "ms": 1445419767472.5742 }, "end": { "local": "2015-10-21T12:17:27+02:00", "utc": "2015-10-21T10:17:27Z", "ms": 1445422647472.5742 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:53 on Tue 20 Oct to 10:00 on Wed 21 Oct.", "fact": "2015-10-20T08:53:19Z → 2015-10-21T07:59:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 20th, 11:29–12:17 on the 21st.", "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 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2179 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Soweto, 2015: Tuesday 20 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": "2015-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-20", "confidence": "determinate" } ], "quote": "In Soweto, Mahāṣṭamī (Durga Ashtami) 2015 falls on Tuesday 20 October. Aṣṭamī runs from 10:53 on Tue 20 Oct to 10:00 on Wed 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5377, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2015-10-21T09:59:50+02:00", "utc": "2015-10-21T07:59:50Z", "ms": 1445414390427.9941 }, "end": { "local": "2015-10-22T08:28:38+02:00", "utc": "2015-10-22T06:28:38Z", "ms": 1445495317590.5205 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-21T09:59:50+02:00", "utc": "2015-10-21T07:59:50Z", "ms": 1445414390427.9941 }, "end": { "local": "2015-10-22T08:28:38+02:00", "utc": "2015-10-22T06:28:38Z", "ms": 1445495317590.5205 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-10-21", "window": { "start": { "local": "2015-10-21T11:29:27+02:00", "utc": "2015-10-21T09:29:27Z", "ms": 1445419767472.5742 }, "end": { "local": "2015-10-21T12:17:27+02:00", "utc": "2015-10-21T10:17:27Z", "ms": 1445422647472.5742 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-10-22", "window": { "start": { "local": "2015-10-22T11:29:18+02:00", "utc": "2015-10-22T09:29:18Z", "ms": 1445506157884.916 }, "end": { "local": "2015-10-22T12:17:18+02:00", "utc": "2015-10-22T10:17:18Z", "ms": 1445509037884.916 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 10:00 on Wed 21 Oct to 08:29 on Thu 22 Oct.", "fact": "2015-10-21T07:59:50Z → 2015-10-22T06:28:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 21st, 11:29–12:17 on the 22nd.", "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 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5377 s" }, { "step": "ruling", "text": "Mahānavamī, Soweto, 2015: Wednesday 21 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": "2015-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-21", "confidence": "determinate" } ], "quote": "In Soweto, Mahānavamī 2015 falls on Wednesday 21 October. Navamī runs from 10:00 on Wed 21 Oct to 08:29 on Thu 22 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5398, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2015-10-22T08:28:38+02:00", "utc": "2015-10-22T06:28:38Z", "ms": 1445495317590.5205 }, "end": { "local": "2015-10-23T06:21:40+02:00", "utc": "2015-10-23T04:21:40Z", "ms": 1445574100274.6763 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "2015-10-22T08:28:38+02:00", "utc": "2015-10-22T06:28:38Z", "ms": 1445495317590.5205 }, "end": { "local": "2015-10-22T09:58:36+02:00", "utc": "2015-10-22T07:58:36Z", "ms": 1445500715754.5576 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "2015-10-21T10:49:44+02:00", "utc": "2015-10-21T08:49:44Z", "ms": 1445417383880.962 }, "end": { "local": "2015-10-22T09:58:36+02:00", "utc": "2015-10-22T07:58:36Z", "ms": 1445500715754.5576 } } }, "kaala": "daytime", "days": [ { "local_date": "2015-10-21", "window": { "start": { "local": "2015-10-21T05:28:39+02:00", "utc": "2015-10-21T03:28:39Z", "ms": 1445398118668.541 }, "end": { "local": "2015-10-21T18:18:16+02:00", "utc": "2015-10-21T16:18:16Z", "ms": 1445444296276.6072 } }, "covered_min": 0, "window_min": 770, "qualifies": false }, { "local_date": "2015-10-22", "window": { "start": { "local": "2015-10-22T05:27:45+02:00", "utc": "2015-10-22T03:27:45Z", "ms": 1445484464817.0884 }, "end": { "local": "2015-10-22T18:18:51+02:00", "utc": "2015-10-22T16:18:51Z", "ms": 1445530730952.744 } }, "covered_min": 90, "window_min": 771, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 08:29 on Thu 22 Oct to 06:22 on Fri 23 Oct, and Śravaṇa from 10:50 on Wed 21 Oct to 09:59 on Thu 22 Oct. They are together from 08:29 on Thu 22 Oct to 09:59 on Thu 22 Oct.", "fact": "2015-10-22T06:28:38Z → 2015-10-22T07:58:36Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 05:29–18:18 on the 21st, 05:28–18:19 on the 22nd.", "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 770 minutes on the 21st and 90 of 771 on the 22nd.", "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 5398 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Soweto, 2015: Thursday 22 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": "2015-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-22", "confidence": "determinate" } ], "quote": "In Soweto, Vijayā Daśamī (Dussehra) 2015 falls on Thursday 22 October. Daśamī runs from 08:29 on Thu 22 Oct to 06:22 on Fri 23 Oct and is with Śravaṇa in the day time that day, for 90 minutes.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-10-23", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3288, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-10-23T06:21:40+02:00", "utc": "2015-10-23T04:21:40Z", "ms": 1445574100274.6763 }, "end": { "local": "2015-10-24T03:42:54+02:00", "utc": "2015-10-24T01:42:54Z", "ms": 1445650974277.4722 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-23T06:21:40+02:00", "utc": "2015-10-23T04:21:40Z", "ms": 1445574100274.6763 }, "end": { "local": "2015-10-24T03:42:54+02:00", "utc": "2015-10-24T01:42:54Z", "ms": 1445650974277.4722 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-10-23", "window": { "start": { "local": "2015-10-23T05:26:52+02:00", "utc": "2015-10-23T03:26:52Z", "ms": 1445570811823.218 }, "end": { "local": "2015-10-23T05:26:52+02:00", "utc": "2015-10-23T03:26:52Z", "ms": 1445570811823.218 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-10-24", "window": { "start": { "local": "2015-10-24T05:26:00+02:00", "utc": "2015-10-24T03:26:00Z", "ms": 1445657159715.6453 }, "end": { "local": "2015-10-24T05:26:00+02:00", "utc": "2015-10-24T03:26:00Z", "ms": 1445657159715.6453 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:22 on Fri 23 Oct to 03:43 on Sat 24 Oct.", "fact": "2015-10-23T04:21:40Z → 2015-10-24T01:42:54Z" }, { "step": "kaala", "text": "Sunrise is at 05:27 on the 23rd and 05:26 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 23rd and is not on the 24th.", "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 3288 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Soweto, 2015: Friday 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": "2015-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-23", "confidence": "determinate" } ], "quote": "In Soweto, Pāśāṅkuśā Ekādaśī 2015 falls on Friday 23 October. Ekādaśī runs from 06:22 on Fri 23 Oct to 03:43 on Sat 24 Oct, and is current at sunrise on neither day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-10-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-10-25", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5112, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-10-25T00:38:02+02:00", "utc": "2015-10-24T22:38:02Z", "ms": 1445726282340.3625 }, "end": { "local": "2015-10-25T21:14:19+02:00", "utc": "2015-10-25T19:14:19Z", "ms": 1445800458943.5405 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2015-10-25T00:38:02+02:00", "utc": "2015-10-24T22:38:02Z", "ms": 1445726282340.3625 }, "end": { "local": "2015-10-25T21:14:19+02:00", "utc": "2015-10-25T19:14:19Z", "ms": 1445800458943.5405 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-10-24", "window": { "start": { "local": "2015-10-24T18:20:02+02:00", "utc": "2015-10-24T16:20:02Z", "ms": 1445703601627.951 }, "end": { "local": "2015-10-24T19:48:43+02:00", "utc": "2015-10-24T17:48:43Z", "ms": 1445708922547.4177 } }, "covered_min": 0, "window_min": 89, "qualifies": false }, { "local_date": "2015-10-25", "window": { "start": { "local": "2015-10-25T18:20:38+02:00", "utc": "2015-10-25T16:20:38Z", "ms": 1445790037636.7107 }, "end": { "local": "2015-10-25T19:49:07+02:00", "utc": "2015-10-25T17:49:07Z", "ms": 1445795347055.6133 } }, "covered_min": 88, "window_min": 88, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:38 on Sun 25 Oct to 21:14 on Sun 25 Oct.", "fact": "2015-10-24T22:38:02Z → 2015-10-25T19:14:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:20–19:49 on the 24th, 18:21–19:49 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 89 minutes on the 24th and 88 of 88 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5112 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Sunday 25 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": "2015-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-25", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Sunday 25 October. Trayodaśī runs from 00:38 on Sun 25 Oct to 21:14 on Sun 25 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-10-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18949, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-10-30T04:54:48+02:00", "utc": "2015-10-30T02:54:48Z", "ms": 1446173688202.2532 }, "end": { "local": "2015-10-31T02:55:50+02:00", "utc": "2015-10-31T00:55:50Z", "ms": 1446252950455.2288 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-10-30T04:54:48+02:00", "utc": "2015-10-30T02:54:48Z", "ms": 1446173688202.2532 }, "end": { "local": "2015-10-31T02:55:50+02:00", "utc": "2015-10-31T00:55:50Z", "ms": 1446252950455.2288 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-10-29", "window": { "start": { "local": "2015-10-29T20:39:49+02:00", "utc": "2015-10-29T18:39:49Z", "ms": 1446143988825.5007 }, "end": { "local": "2015-10-29T20:39:49+02:00", "utc": "2015-10-29T18:39:49Z", "ms": 1446143988825.5007 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-10-30", "window": { "start": { "local": "2015-10-30T21:40:02+02:00", "utc": "2015-10-30T19:40:02Z", "ms": 1446234001854.0134 }, "end": { "local": "2015-10-30T21:40:02+02:00", "utc": "2015-10-30T19:40:02Z", "ms": 1446234001854.0134 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:55 on Fri 30 Oct to 02:56 on Sat 31 Oct.", "fact": "2015-10-30T02:54:48Z → 2015-10-31T00:55:50Z" }, { "step": "kaala", "text": "Moonrise is at 20:40 on the 29th and 21:40 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18949 s" }, { "step": "ruling", "text": "Karaka Caturthī, Soweto, 2015: Friday 30 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": "2015-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-30", "confidence": "determinate" } ], "quote": "In Soweto, Karaka Caturthī (Karwa Chauth) 2015 falls on Friday 30 October. Caturthī runs from 04:55 on Fri 30 Oct to 02:56 on Sat 31 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-10-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18949, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-10-30T04:54:48+02:00", "utc": "2015-10-30T02:54:48Z", "ms": 1446173688202.2532 }, "end": { "local": "2015-10-31T02:55:50+02:00", "utc": "2015-10-31T00:55:50Z", "ms": 1446252950455.2288 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-10-30T04:54:48+02:00", "utc": "2015-10-30T02:54:48Z", "ms": 1446173688202.2532 }, "end": { "local": "2015-10-31T02:55:50+02:00", "utc": "2015-10-31T00:55:50Z", "ms": 1446252950455.2288 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-10-29", "window": { "start": { "local": "2015-10-29T20:39:49+02:00", "utc": "2015-10-29T18:39:49Z", "ms": 1446143988825.5007 }, "end": { "local": "2015-10-29T20:39:49+02:00", "utc": "2015-10-29T18:39:49Z", "ms": 1446143988825.5007 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-10-30", "window": { "start": { "local": "2015-10-30T21:40:02+02:00", "utc": "2015-10-30T19:40:02Z", "ms": 1446234001854.0134 }, "end": { "local": "2015-10-30T21:40:02+02:00", "utc": "2015-10-30T19:40:02Z", "ms": 1446234001854.0134 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:55 on Fri 30 Oct to 02:56 on Sat 31 Oct.", "fact": "2015-10-30T02:54:48Z → 2015-10-31T00:55:50Z" }, { "step": "kaala", "text": "Moonrise is at 20:40 on the 29th and 21:40 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18949 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Friday 30 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-10-30", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Friday 30 October. Caturthī runs from 04:55 on Fri 30 Oct to 02:56 on Sat 31 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-10-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5888, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-11-03T01:50:26+02:00", "utc": "2015-11-02T23:50:26Z", "ms": 1446508226390.3164 }, "end": { "local": "2015-11-04T03:08:36+02:00", "utc": "2015-11-04T01:08:36Z", "ms": 1446599316263.9136 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-03T01:50:26+02:00", "utc": "2015-11-02T23:50:26Z", "ms": 1446508226390.3164 }, "end": { "local": "2015-11-04T03:08:36+02:00", "utc": "2015-11-04T01:08:36Z", "ms": 1446599316263.9136 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-11-02", "window": { "start": { "local": "2015-11-03T00:12:18+02:00", "utc": "2015-11-02T22:12:18Z", "ms": 1446502338350.186 }, "end": { "local": "2015-11-03T00:12:18+02:00", "utc": "2015-11-02T22:12:18Z", "ms": 1446502338350.186 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-11-03", "window": { "start": { "local": "2015-11-04T00:54:05+02:00", "utc": "2015-11-03T22:54:05Z", "ms": 1446591245232.6416 }, "end": { "local": "2015-11-04T00:54:05+02:00", "utc": "2015-11-03T22:54:05Z", "ms": 1446591245232.6416 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:50 on Tue 3 Nov to 03:09 on Wed 4 Nov.", "fact": "2015-11-02T23:50:26Z → 2015-11-04T01:08:36Z" }, { "step": "kaala", "text": "Moonrise is at 00:12 on the 2nd and 00:54 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 2nd and is on the 3rd.", "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 5888 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Soweto, 2015: Tuesday 3 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-03", "confidence": "determinate" } ], "quote": "In Soweto, Ahoyī Aṣṭamī 2015 falls on Tuesday 3 November. Aṣṭamī runs from 01:50 on Tue 3 Nov to 03:09 on Wed 4 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-11-07", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8305, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-11-06T07:34:41+02:00", "utc": "2015-11-06T05:34:41Z", "ms": 1446788081296.3452 }, "end": { "local": "2015-11-07T10:17:20+02:00", "utc": "2015-11-07T08:17:20Z", "ms": 1446884239858.5366 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-06T07:34:41+02:00", "utc": "2015-11-06T05:34:41Z", "ms": 1446788081296.3452 }, "end": { "local": "2015-11-07T10:17:20+02:00", "utc": "2015-11-07T08:17:20Z", "ms": 1446884239858.5366 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-11-06", "window": { "start": { "local": "2015-11-06T05:16:17+02:00", "utc": "2015-11-06T03:16:17Z", "ms": 1446779776606.545 }, "end": { "local": "2015-11-06T05:16:17+02:00", "utc": "2015-11-06T03:16:17Z", "ms": 1446779776606.545 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-11-07", "window": { "start": { "local": "2015-11-07T05:15:40+02:00", "utc": "2015-11-07T03:15:40Z", "ms": 1446866139983.263 }, "end": { "local": "2015-11-07T05:15:40+02:00", "utc": "2015-11-07T03:15:40Z", "ms": 1446866139983.263 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:35 on Fri 6 Nov to 10:17 on Sat 7 Nov.", "fact": "2015-11-06T05:34:41Z → 2015-11-07T08:17:20Z" }, { "step": "kaala", "text": "Sunrise is at 05:16 on the 6th and 05:16 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8305 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Soweto, 2015: Saturday 7 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": "2015-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-07", "confidence": "determinate" } ], "quote": "In Soweto, Ramā Ekādaśī 2015 falls on Saturday 7 November. Ekādaśī runs from 07:35 on Fri 6 Nov to 10:17 on Sat 7 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19685, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2015-11-07T10:17:20+02:00", "utc": "2015-11-07T08:17:20Z", "ms": 1446884239858.5366 }, "end": { "local": "2015-11-08T13:01:45+02:00", "utc": "2015-11-08T11:01:45Z", "ms": 1446980504593.9536 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-07T10:17:20+02:00", "utc": "2015-11-07T08:17:20Z", "ms": 1446884239858.5366 }, "end": { "local": "2015-11-08T13:01:45+02:00", "utc": "2015-11-08T11:01:45Z", "ms": 1446980504593.9536 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-11-07", "window": { "start": { "local": "2015-11-07T18:29:08+02:00", "utc": "2015-11-07T16:29:08Z", "ms": 1446913747755.4253 }, "end": { "local": "2015-11-07T19:55:15+02:00", "utc": "2015-11-07T17:55:15Z", "ms": 1446918915342.295 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2015-11-08", "window": { "start": { "local": "2015-11-08T18:29:50+02:00", "utc": "2015-11-08T16:29:50Z", "ms": 1447000190064.7554 }, "end": { "local": "2015-11-08T19:55:47+02:00", "utc": "2015-11-08T17:55:47Z", "ms": 1447005347475.847 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:17 on Sat 7 Nov to 13:02 on Sun 8 Nov.", "fact": "2015-11-07T08:17:20Z → 2015-11-08T11:01:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:29–19:55 on the 7th, 18:30–19:56 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 86 of 86 minutes on the 7th and 0 of 86 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19685 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Soweto, 2015: Saturday 7 November.", "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": "2015-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-07", "confidence": "determinate" } ], "quote": "In Soweto, Govatsa Dvādaśī (Vasu Baras) 2015 falls on Saturday 7 November. Dvādaśī runs from 10:17 on Sat 7 Nov to 13:02 on Sun 8 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10441, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-11-08T13:01:45+02:00", "utc": "2015-11-08T11:01:45Z", "ms": 1446980504593.9536 }, "end": { "local": "2015-11-09T15:36:31+02:00", "utc": "2015-11-09T13:36:31Z", "ms": 1447076191347.7905 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-08T13:01:45+02:00", "utc": "2015-11-08T11:01:45Z", "ms": 1446980504593.9536 }, "end": { "local": "2015-11-09T15:36:31+02:00", "utc": "2015-11-09T13:36:31Z", "ms": 1447076191347.7905 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-11-08", "window": { "start": { "local": "2015-11-08T18:29:50+02:00", "utc": "2015-11-08T16:29:50Z", "ms": 1447000190064.7554 }, "end": { "local": "2015-11-08T19:55:47+02:00", "utc": "2015-11-08T17:55:47Z", "ms": 1447005347475.847 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2015-11-09", "window": { "start": { "local": "2015-11-09T18:30:33+02:00", "utc": "2015-11-09T16:30:33Z", "ms": 1447086632752.36 }, "end": { "local": "2015-11-09T19:56:20+02:00", "utc": "2015-11-09T17:56:20Z", "ms": 1447091780115.4626 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:02 on Sun 8 Nov to 15:37 on Mon 9 Nov.", "fact": "2015-11-08T11:01:45Z → 2015-11-09T13:36:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:30–19:56 on the 8th, 18:31–19:56 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 86 of 86 minutes on the 8th and 0 of 86 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 10441 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Soweto, 2015: Sunday 8 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-08", "confidence": "determinate" } ], "quote": "In Soweto, Yama Dīpadāna 2015 falls on Sunday 8 November. Trayodaśī runs from 13:02 on Sun 8 Nov to 15:37 on Mon 9 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/pradosha-vrata?on=2015-11-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10441, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-11-08T13:01:45+02:00", "utc": "2015-11-08T11:01:45Z", "ms": 1446980504593.9536 }, "end": { "local": "2015-11-09T15:36:31+02:00", "utc": "2015-11-09T13:36:31Z", "ms": 1447076191347.7905 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-08T13:01:45+02:00", "utc": "2015-11-08T11:01:45Z", "ms": 1446980504593.9536 }, "end": { "local": "2015-11-09T15:36:31+02:00", "utc": "2015-11-09T13:36:31Z", "ms": 1447076191347.7905 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-11-08", "window": { "start": { "local": "2015-11-08T18:29:50+02:00", "utc": "2015-11-08T16:29:50Z", "ms": 1447000190064.7554 }, "end": { "local": "2015-11-08T19:55:47+02:00", "utc": "2015-11-08T17:55:47Z", "ms": 1447005347475.847 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2015-11-09", "window": { "start": { "local": "2015-11-09T18:30:33+02:00", "utc": "2015-11-09T16:30:33Z", "ms": 1447086632752.36 }, "end": { "local": "2015-11-09T19:56:20+02:00", "utc": "2015-11-09T17:56:20Z", "ms": 1447091780115.4626 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:02 on Sun 8 Nov to 15:37 on Mon 9 Nov.", "fact": "2015-11-08T11:01:45Z → 2015-11-09T13:36:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:30–19:56 on the 8th, 18:31–19:56 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 86 of 86 minutes on the 8th and 0 of 86 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 10441 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Sunday 8 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": "2015-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-08", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Sunday 8 November. Trayodaśī runs from 13:02 on Sun 8 Nov to 15:37 on Mon 9 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-11-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-11-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20100, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-11-09T15:36:31+02:00", "utc": "2015-11-09T13:36:31Z", "ms": 1447076191347.7905 }, "end": { "local": "2015-11-10T17:53:21+02:00", "utc": "2015-11-10T15:53:21Z", "ms": 1447170800836.6682 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-09T15:36:31+02:00", "utc": "2015-11-09T13:36:31Z", "ms": 1447076191347.7905 }, "end": { "local": "2015-11-10T17:53:21+02:00", "utc": "2015-11-10T15:53:21Z", "ms": 1447170800836.6682 } }, "kaala": "nishita", "days": [ { "local_date": "2015-11-09", "window": { "start": { "local": "2015-11-09T23:28:15+02:00", "utc": "2015-11-09T21:28:15Z", "ms": 1447104495363.9941 }, "end": { "local": "2015-11-10T00:16:15+02:00", "utc": "2015-11-09T22:16:15Z", "ms": 1447107375363.9941 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-11-10", "window": { "start": { "local": "2015-11-10T23:28:21+02:00", "utc": "2015-11-10T21:28:21Z", "ms": 1447190901228.9448 }, "end": { "local": "2015-11-11T00:16:21+02:00", "utc": "2015-11-10T22:16:21Z", "ms": 1447193781228.9448 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:37 on Mon 9 Nov to 17:53 on Tue 10 Nov.", "fact": "2015-11-09T13:36:31Z → 2015-11-10T15:53:21Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:28–00:16 on the 9th, 23:28–00:16 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 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. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20100 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Monday 9 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": "2015-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-09", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Monday 9 November. Caturdaśī runs from 15:37 on Mon 9 Nov to 17:53 on Tue 10 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-11-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35668, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-11-09T15:36:31+02:00", "utc": "2015-11-09T13:36:31Z", "ms": 1447076191347.7905 }, "end": { "local": "2015-11-10T17:53:21+02:00", "utc": "2015-11-10T15:53:21Z", "ms": 1447170800836.6682 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-09T15:36:31+02:00", "utc": "2015-11-09T13:36:31Z", "ms": 1447076191347.7905 }, "end": { "local": "2015-11-10T17:53:21+02:00", "utc": "2015-11-10T15:53:21Z", "ms": 1447170800836.6682 } }, "kaala": "arunodaya", "days": [ { "local_date": "2015-11-10", "window": { "start": { "local": "2015-11-10T03:48:11+02:00", "utc": "2015-11-10T01:48:11Z", "ms": 1447120090612.526 }, "end": { "local": "2015-11-10T05:13:58+02:00", "utc": "2015-11-10T03:13:58Z", "ms": 1447125237975.6284 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2015-11-11", "window": { "start": { "local": "2015-11-11T03:47:49+02:00", "utc": "2015-11-11T01:47:49Z", "ms": 1447206469210.5554 }, "end": { "local": "2015-11-11T05:13:27+02:00", "utc": "2015-11-11T03:13:27Z", "ms": 1447211606658.4138 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:37 on Mon 9 Nov to 17:53 on Tue 10 Nov.", "fact": "2015-11-09T13:36:31Z → 2015-11-10T15:53:21Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 03:48–05:14 on the 10th, 03:48–05:13 on the 11th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 86 of 86 minutes on the 10th and 0 of 86 on the 11th.", "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 35668 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Soweto, 2015: Tuesday 10 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-10", "confidence": "determinate" } ], "quote": "In Soweto, Naraka Caturdaśī (Choti Diwali) 2015 falls on Tuesday 10 November. Caturdaśī runs from 15:37 on Mon 9 Nov to 17:53 on Tue 10 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-10", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 619, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2015-11-10T17:53:21+02:00", "utc": "2015-11-10T15:53:21Z", "ms": 1447170800836.6682 }, "end": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-10T17:53:21+02:00", "utc": "2015-11-10T15:53:21Z", "ms": 1447170800836.6682 }, "end": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-11-10", "window": { "start": { "local": "2015-11-10T18:31:16+02:00", "utc": "2015-11-10T16:31:16Z", "ms": 1447173075799.4758 }, "end": { "local": "2015-11-10T19:56:53+02:00", "utc": "2015-11-10T17:56:53Z", "ms": 1447178213247.3342 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2015-11-11", "window": { "start": { "local": "2015-11-11T18:31:59+02:00", "utc": "2015-11-11T16:31:59Z", "ms": 1447259519185.7227 }, "end": { "local": "2015-11-11T19:57:27+02:00", "utc": "2015-11-11T17:57:27Z", "ms": 1447264646856.1255 } }, "covered_min": 75, "window_min": 85, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 17:53 on Tue 10 Nov to 19:47 on Wed 11 Nov.", "fact": "2015-11-10T15:53:21Z → 2015-11-11T17:47:08Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:31–19:57 on the 10th, 18:32–19:57 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 86 of 86 minutes on the 10th and 75 of 85 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "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 619 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Soweto, 2015: Tuesday 10 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2015-11-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-10", "confidence": "boundary" } ], "quote": "In Soweto, Lakṣmī Pūjā (Diwali) 2015 falls on Tuesday 10 November. Amāvasyā runs from 17:53 on Tue 10 Nov to 19:47 on Wed 11 Nov and covers all of pradoṣa that evening. It also reaches the next evening for 75 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13280, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2015-11-10T17:53:21+02:00", "utc": "2015-11-10T15:53:21Z", "ms": 1447170800836.6682 }, "end": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-10T17:53:21+02:00", "utc": "2015-11-10T15:53:21Z", "ms": 1447170800836.6682 }, "end": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 } }, "kaala": "nishita", "days": [ { "local_date": "2015-11-10", "window": { "start": { "local": "2015-11-10T23:28:21+02:00", "utc": "2015-11-10T21:28:21Z", "ms": 1447190901228.9448 }, "end": { "local": "2015-11-11T00:16:21+02:00", "utc": "2015-11-10T22:16:21Z", "ms": 1447193781228.9448 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-11-11", "window": { "start": { "local": "2015-11-11T23:28:28+02:00", "utc": "2015-11-11T21:28:28Z", "ms": 1447277307949.7334 }, "end": { "local": "2015-11-12T00:16:28+02:00", "utc": "2015-11-11T22:16:28Z", "ms": 1447280187949.7334 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 17:53 on Tue 10 Nov to 19:47 on Wed 11 Nov.", "fact": "2015-11-10T15:53:21Z → 2015-11-11T17:47:08Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:28–00:16 on the 10th, 23:28–00:16 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13280 s" }, { "step": "ruling", "text": "Kālī Pūjā, Soweto, 2015: Tuesday 10 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-10", "confidence": "determinate" } ], "quote": "In Soweto, Kālī Pūjā 2015 falls on Tuesday 10 November. Amāvasyā runs from 17:53 on Tue 10 Nov to 19:47 on Wed 11 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27025, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 }, "end": { "local": "2015-11-12T21:15:30+02:00", "utc": "2015-11-12T19:15:30Z", "ms": 1447355730117.1184 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 }, "end": { "local": "2015-11-12T21:15:30+02:00", "utc": "2015-11-12T19:15:30Z", "ms": 1447355730117.1184 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-11-11", "window": { "start": { "local": "2015-11-11T11:28:43+02:00", "utc": "2015-11-11T09:28:43Z", "ms": 1447234122922.0684 }, "end": { "local": "2015-11-11T12:16:43+02:00", "utc": "2015-11-11T10:16:43Z", "ms": 1447237002922.0684 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-11-12", "window": { "start": { "local": "2015-11-12T11:28:50+02:00", "utc": "2015-11-12T09:28:50Z", "ms": 1447320529801.4414 }, "end": { "local": "2015-11-12T12:16:50+02:00", "utc": "2015-11-12T10:16:50Z", "ms": 1447323409801.4414 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:47 on Wed 11 Nov to 21:16 on Thu 12 Nov.", "fact": "2015-11-11T17:47:08Z → 2015-11-12T19:15:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 11th, 11:29–12:17 on the 12th.", "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 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27025 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Soweto, 2015: Thursday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govardhana-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-12", "confidence": "determinate" } ], "quote": "In Soweto, Govardhana Pūjā 2015 falls on Thursday 12 November. Pratipadā runs from 19:47 on Wed 11 Nov to 21:16 on Thu 12 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-12", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 619, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 }, "end": { "local": "2015-11-12T21:15:30+02:00", "utc": "2015-11-12T19:15:30Z", "ms": 1447355730117.1184 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 }, "end": { "local": "2015-11-12T21:15:30+02:00", "utc": "2015-11-12T19:15:30Z", "ms": 1447355730117.1184 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-11-11", "window": { "start": { "local": "2015-11-11T18:31:59+02:00", "utc": "2015-11-11T16:31:59Z", "ms": 1447259519185.7227 }, "end": { "local": "2015-11-11T19:57:27+02:00", "utc": "2015-11-11T17:57:27Z", "ms": 1447264646856.1255 } }, "covered_min": 10, "window_min": 85, "qualifies": true }, { "local_date": "2015-11-12", "window": { "start": { "local": "2015-11-12T18:32:43+02:00", "utc": "2015-11-12T16:32:43Z", "ms": 1447345962889.1392 }, "end": { "local": "2015-11-12T19:58:01+02:00", "utc": "2015-11-12T17:58:01Z", "ms": 1447351080925.006 } }, "covered_min": 85, "window_min": 85, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:47 on Wed 11 Nov to 21:16 on Thu 12 Nov.", "fact": "2015-11-11T17:47:08Z → 2015-11-12T19:15:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:32–19:57 on the 11th, 18:33–19:58 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 10 of 85 minutes on the 11th and 85 of 85 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "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 619 s" }, { "step": "ruling", "text": "Bali Pūjā, Soweto, 2015: Thursday 12 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2015-11-12", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-12", "confidence": "boundary" } ], "quote": "In Soweto, Bali Pūjā 2015 falls on Thursday 12 November. Pratipadā runs from 19:47 on Wed 11 Nov to 21:16 on Thu 12 Nov and covers all of pradoṣa that evening. It also reaches the previous evening for 10 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/soweto/festivals/2015/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": "/soweto/festivals/2015/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28618, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 }, "end": { "local": "2015-11-12T21:15:30+02:00", "utc": "2015-11-12T19:15:30Z", "ms": 1447355730117.1184 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-11T19:47:08+02:00", "utc": "2015-11-11T17:47:08Z", "ms": 1447264028031.4216 }, "end": { "local": "2015-11-12T21:15:30+02:00", "utc": "2015-11-12T19:15:30Z", "ms": 1447355730117.1184 } }, "kaala": "purvahna", "days": [ { "local_date": "2015-11-12", "window": { "start": { "local": "2015-11-12T05:12:57+02:00", "utc": "2015-11-12T03:12:57Z", "ms": 1447297976713.744 }, "end": { "local": "2015-11-12T09:39:32+02:00", "utc": "2015-11-12T07:39:32Z", "ms": 1447313972105.5422 } }, "covered_min": 267, "window_min": 267, "qualifies": true }, { "local_date": "2015-11-13", "window": { "start": { "local": "2015-11-13T05:12:28+02:00", "utc": "2015-11-13T03:12:28Z", "ms": 1447384348158.1416 }, "end": { "local": "2015-11-13T09:39:28+02:00", "utc": "2015-11-13T07:39:28Z", "ms": 1447400367734.1775 } }, "covered_min": 0, "window_min": 267, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:47 on Wed 11 Nov to 21:16 on Thu 12 Nov.", "fact": "2015-11-11T17:47:08Z → 2015-11-12T19:15:30Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:13–09:40 on the 12th, 05:12–09:39 on the 13th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 267 of 267 minutes on the 12th and 0 of 267 on the 13th.", "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 28618 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Soweto, 2015: Thursday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-12", "confidence": "determinate" } ], "quote": "In Soweto, Dyūta Pratipad 2015 falls on Thursday 12 November. Pratipadā runs from 19:47 on Wed 11 Nov to 21:16 on Thu 12 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32320, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2015-11-12T21:15:30+02:00", "utc": "2015-11-12T19:15:30Z", "ms": 1447355730117.1184 }, "end": { "local": "2015-11-13T22:17:53+02:00", "utc": "2015-11-13T20:17:53Z", "ms": 1447445873400.3113 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-12T21:15:30+02:00", "utc": "2015-11-12T19:15:30Z", "ms": 1447355730117.1184 }, "end": { "local": "2015-11-13T22:17:53+02:00", "utc": "2015-11-13T20:17:53Z", "ms": 1447445873400.3113 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-11-12", "window": { "start": { "local": "2015-11-12T11:28:50+02:00", "utc": "2015-11-12T09:28:50Z", "ms": 1447320529801.4414 }, "end": { "local": "2015-11-12T12:16:50+02:00", "utc": "2015-11-12T10:16:50Z", "ms": 1447323409801.4414 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-11-13", "window": { "start": { "local": "2015-11-13T11:28:58+02:00", "utc": "2015-11-13T09:28:58Z", "ms": 1447406937522.1953 }, "end": { "local": "2015-11-13T12:16:58+02:00", "utc": "2015-11-13T10:16:58Z", "ms": 1447409817522.1953 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 21:16 on Thu 12 Nov to 22:18 on Fri 13 Nov.", "fact": "2015-11-12T19:15:30Z → 2015-11-13T20:17:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 12th, 11:29–12:17 on the 13th.", "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 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 32320 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Soweto, 2015: Friday 13 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dvitiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-13", "confidence": "determinate" } ], "quote": "In Soweto, Yama Dvitīyā (Bhai Dooj) 2015 falls on Friday 13 November. Dvitīyā runs from 21:16 on Thu 12 Nov to 22:18 on Fri 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38252, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-11-14T22:54:38+02:00", "utc": "2015-11-14T20:54:38Z", "ms": 1447534477709.0032 }, "end": { "local": "2015-11-15T23:06:11+02:00", "utc": "2015-11-15T21:06:11Z", "ms": 1447621571225.2363 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-14T22:54:38+02:00", "utc": "2015-11-14T20:54:38Z", "ms": 1447534477709.0032 }, "end": { "local": "2015-11-15T23:06:11+02:00", "utc": "2015-11-15T21:06:11Z", "ms": 1447621571225.2363 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-11-14", "window": { "start": { "local": "2015-11-14T11:29:06+02:00", "utc": "2015-11-14T09:29:06Z", "ms": 1447493346079.7246 }, "end": { "local": "2015-11-14T12:17:06+02:00", "utc": "2015-11-14T10:17:06Z", "ms": 1447496226079.7246 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-11-15", "window": { "start": { "local": "2015-11-15T11:29:15+02:00", "utc": "2015-11-15T09:29:15Z", "ms": 1447579755468.4246 }, "end": { "local": "2015-11-15T12:17:15+02:00", "utc": "2015-11-15T10:17:15Z", "ms": 1447582635468.4246 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:55 on Sat 14 Nov to 23:06 on Sun 15 Nov.", "fact": "2015-11-14T20:54:38Z → 2015-11-15T21:06:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 14th, 11:29–12:17 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38252 s" }, { "step": "ruling", "text": "Nāga Caturthī, Soweto, 2015: Sunday 15 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-15", "confidence": "determinate" } ], "quote": "In Soweto, Nāga Caturthī 2015 falls on Sunday 15 November. Caturthī runs from 22:55 on Sat 14 Nov to 23:06 on Sun 15 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-11-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38252, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-11-14T22:54:38+02:00", "utc": "2015-11-14T20:54:38Z", "ms": 1447534477709.0032 }, "end": { "local": "2015-11-15T23:06:11+02:00", "utc": "2015-11-15T21:06:11Z", "ms": 1447621571225.2363 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-14T22:54:38+02:00", "utc": "2015-11-14T20:54:38Z", "ms": 1447534477709.0032 }, "end": { "local": "2015-11-15T23:06:11+02:00", "utc": "2015-11-15T21:06:11Z", "ms": 1447621571225.2363 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-11-14", "window": { "start": { "local": "2015-11-14T11:29:06+02:00", "utc": "2015-11-14T09:29:06Z", "ms": 1447493346079.7246 }, "end": { "local": "2015-11-14T12:17:06+02:00", "utc": "2015-11-14T10:17:06Z", "ms": 1447496226079.7246 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-11-15", "window": { "start": { "local": "2015-11-15T11:29:15+02:00", "utc": "2015-11-15T09:29:15Z", "ms": 1447579755468.4246 }, "end": { "local": "2015-11-15T12:17:15+02:00", "utc": "2015-11-15T10:17:15Z", "ms": 1447582635468.4246 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:55 on Sat 14 Nov to 23:06 on Sun 15 Nov.", "fact": "2015-11-14T20:54:38Z → 2015-11-15T21:06:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 14th, 11:29–12:17 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38252 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Sunday 15 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": "2015-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-15", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Sunday 15 November. Caturthī runs from 22:55 on Sat 14 Nov to 23:06 on Sun 15 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-11-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35781, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2015-11-16T22:52:43+02:00", "utc": "2015-11-16T20:52:43Z", "ms": 1447707163180.076 }, "end": { "local": "2015-11-17T22:13:57+02:00", "utc": "2015-11-17T20:13:57Z", "ms": 1447791237268.2244 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-16T22:52:43+02:00", "utc": "2015-11-16T20:52:43Z", "ms": 1447707163180.076 }, "end": { "local": "2015-11-17T22:13:57+02:00", "utc": "2015-11-17T20:13:57Z", "ms": 1447791237268.2244 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-11-16", "window": { "start": { "local": "2015-11-16T11:29:26+02:00", "utc": "2015-11-16T09:29:26Z", "ms": 1447666165681.8489 }, "end": { "local": "2015-11-16T12:17:26+02:00", "utc": "2015-11-16T10:17:26Z", "ms": 1447669045681.8489 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-11-17", "window": { "start": { "local": "2015-11-17T11:29:37+02:00", "utc": "2015-11-17T09:29:37Z", "ms": 1447752576712.885 }, "end": { "local": "2015-11-17T12:17:37+02:00", "utc": "2015-11-17T10:17:37Z", "ms": 1447755456712.885 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:53 on Mon 16 Nov to 22:14 on Tue 17 Nov.", "fact": "2015-11-16T20:52:43Z → 2015-11-17T20:13:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 16th, 11:30–12:18 on the 17th.", "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 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35781 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Soweto, 2015: Tuesday 17 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-17", "confidence": "determinate" } ], "quote": "In Soweto, Sūrya Ṣaṣṭhī (Chhath) 2015 falls on Tuesday 17 November. Ṣaṣṭhī runs from 22:53 on Mon 16 Nov to 22:14 on Tue 17 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26448, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2015-11-18T21:09:24+02:00", "utc": "2015-11-18T19:09:24Z", "ms": 1447873764432.8057 }, "end": { "local": "2015-11-19T19:38:50+02:00", "utc": "2015-11-19T17:38:50Z", "ms": 1447954729652.643 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-18T21:09:24+02:00", "utc": "2015-11-18T19:09:24Z", "ms": 1447873764432.8057 }, "end": { "local": "2015-11-19T19:38:50+02:00", "utc": "2015-11-19T17:38:50Z", "ms": 1447954729652.643 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-11-18", "window": { "start": { "local": "2015-11-18T11:29:49+02:00", "utc": "2015-11-18T09:29:49Z", "ms": 1447838988553.945 }, "end": { "local": "2015-11-18T12:17:49+02:00", "utc": "2015-11-18T10:17:49Z", "ms": 1447841868553.945 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-11-19", "window": { "start": { "local": "2015-11-19T11:30:01+02:00", "utc": "2015-11-19T09:30:01Z", "ms": 1447925401197.1682 }, "end": { "local": "2015-11-19T12:18:01+02:00", "utc": "2015-11-19T10:18:01Z", "ms": 1447928281197.1682 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 21:09 on Wed 18 Nov to 19:39 on Thu 19 Nov.", "fact": "2015-11-18T19:09:24Z → 2015-11-19T17:38:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 18th, 11:30–12:18 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26448 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Soweto, 2015: Thursday 19 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": "2015-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-19", "confidence": "determinate" } ], "quote": "In Soweto, Gopāṣṭamī 2015 falls on Thursday 19 November. Aṣṭamī runs from 21:09 on Wed 18 Nov to 19:39 on Thu 19 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28999, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2015-11-19T19:38:50+02:00", "utc": "2015-11-19T17:38:50Z", "ms": 1447954729652.643 }, "end": { "local": "2015-11-20T17:42:44+02:00", "utc": "2015-11-20T15:42:44Z", "ms": 1448034164442.1853 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-19T19:38:50+02:00", "utc": "2015-11-19T17:38:50Z", "ms": 1447954729652.643 }, "end": { "local": "2015-11-20T17:42:44+02:00", "utc": "2015-11-20T15:42:44Z", "ms": 1448034164442.1853 } }, "kaala": "purvahna", "days": [ { "local_date": "2015-11-19", "window": { "start": { "local": "2015-11-19T05:10:07+02:00", "utc": "2015-11-19T03:10:07Z", "ms": 1447902606827.9817 }, "end": { "local": "2015-11-19T09:39:23+02:00", "utc": "2015-11-19T07:39:23Z", "ms": 1447918763074.106 } }, "covered_min": 0, "window_min": 269, "qualifies": false }, { "local_date": "2015-11-20", "window": { "start": { "local": "2015-11-20T05:09:48+02:00", "utc": "2015-11-20T03:09:48Z", "ms": 1447988988401.9717 }, "end": { "local": "2015-11-20T09:39:26+02:00", "utc": "2015-11-20T07:39:26Z", "ms": 1448005165890.4102 } }, "covered_min": 270, "window_min": 270, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 19:39 on Thu 19 Nov to 17:43 on Fri 20 Nov.", "fact": "2015-11-19T17:38:50Z → 2015-11-20T15:42:44Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:10–09:39 on the 19th, 05:10–09:39 on the 20th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 0 of 269 minutes on the 19th and 270 of 270 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28999 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Soweto, 2015: Friday 20 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": "2015-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-20", "confidence": "determinate" } ], "quote": "In Soweto, Akṣaya Navamī (Amla Navami) 2015 falls on Friday 20 November. Navamī runs from 19:39 on Thu 19 Nov to 17:43 on Fri 20 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19470, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2015-11-19T19:38:50+02:00", "utc": "2015-11-19T17:38:50Z", "ms": 1447954729652.643 }, "end": { "local": "2015-11-20T17:42:44+02:00", "utc": "2015-11-20T15:42:44Z", "ms": 1448034164442.1853 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-19T19:38:50+02:00", "utc": "2015-11-19T17:38:50Z", "ms": 1447954729652.643 }, "end": { "local": "2015-11-20T17:42:44+02:00", "utc": "2015-11-20T15:42:44Z", "ms": 1448034164442.1853 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-11-19", "window": { "start": { "local": "2015-11-19T11:30:01+02:00", "utc": "2015-11-19T09:30:01Z", "ms": 1447925401197.1682 }, "end": { "local": "2015-11-19T12:18:01+02:00", "utc": "2015-11-19T10:18:01Z", "ms": 1447928281197.1682 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-11-20", "window": { "start": { "local": "2015-11-20T11:30:15+02:00", "utc": "2015-11-20T09:30:15Z", "ms": 1448011814634.6294 }, "end": { "local": "2015-11-20T12:18:15+02:00", "utc": "2015-11-20T10:18:15Z", "ms": 1448014694634.6294 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 19:39 on Thu 19 Nov to 17:43 on Fri 20 Nov.", "fact": "2015-11-19T17:38:50Z → 2015-11-20T15:42:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 19th, 11:30–12:18 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19470 s" }, { "step": "ruling", "text": "Durgā Navamī, Soweto, 2015: Friday 20 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": "2015-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-20", "confidence": "determinate" } ], "quote": "In Soweto, Durgā Navamī 2015 falls on Friday 20 November. Navamī runs from 19:39 on Thu 19 Nov to 17:43 on Fri 20 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-11-22", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27212, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-11-21T15:22:56+02:00", "utc": "2015-11-21T13:22:56Z", "ms": 1448112176248.722 }, "end": { "local": "2015-11-22T12:42:48+02:00", "utc": "2015-11-22T10:42:48Z", "ms": 1448188968177.3384 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-21T15:22:56+02:00", "utc": "2015-11-21T13:22:56Z", "ms": 1448112176248.722 }, "end": { "local": "2015-11-22T12:42:48+02:00", "utc": "2015-11-22T10:42:48Z", "ms": 1448188968177.3384 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-11-21", "window": { "start": { "local": "2015-11-21T05:09:31+02:00", "utc": "2015-11-21T03:09:31Z", "ms": 1448075371476.5151 }, "end": { "local": "2015-11-21T05:09:31+02:00", "utc": "2015-11-21T03:09:31Z", "ms": 1448075371476.5151 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2015-11-22", "window": { "start": { "local": "2015-11-22T05:09:16+02:00", "utc": "2015-11-22T03:09:16Z", "ms": 1448161756064.5613 }, "end": { "local": "2015-11-22T05:09:16+02:00", "utc": "2015-11-22T03:09:16Z", "ms": 1448161756064.5613 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:23 on Sat 21 Nov to 12:43 on Sun 22 Nov.", "fact": "2015-11-21T13:22:56Z → 2015-11-22T10:42:48Z" }, { "step": "kaala", "text": "Sunrise is at 05:10 on the 21st and 05:09 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27212 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Soweto, 2015: Sunday 22 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": "2015-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-22", "confidence": "determinate" } ], "quote": "In Soweto, Prabodhinī Ekādaśī 2015 falls on Sunday 22 November. Ekādaśī runs from 15:23 on Sat 21 Nov to 12:43 on Sun 22 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-11-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-11-23", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32011, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-11-23T09:47:26+02:00", "utc": "2015-11-23T07:47:26Z", "ms": 1448264846335.106 }, "end": { "local": "2015-11-24T06:43:36+02:00", "utc": "2015-11-24T04:43:36Z", "ms": 1448340215608.3496 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-23T09:47:26+02:00", "utc": "2015-11-23T07:47:26Z", "ms": 1448264846335.106 }, "end": { "local": "2015-11-24T06:43:36+02:00", "utc": "2015-11-24T04:43:36Z", "ms": 1448340215608.3496 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-11-23", "window": { "start": { "local": "2015-11-23T18:40:57+02:00", "utc": "2015-11-23T16:40:57Z", "ms": 1448296857091.94 }, "end": { "local": "2015-11-23T20:04:40+02:00", "utc": "2015-11-23T18:04:40Z", "ms": 1448301880123.9841 } }, "covered_min": 84, "window_min": 84, "qualifies": true }, { "local_date": "2015-11-24", "window": { "start": { "local": "2015-11-24T18:41:43+02:00", "utc": "2015-11-24T16:41:43Z", "ms": 1448383302515.084 }, "end": { "local": "2015-11-24T20:05:18+02:00", "utc": "2015-11-24T18:05:18Z", "ms": 1448388318051.2905 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:47 on Mon 23 Nov to 06:44 on Tue 24 Nov.", "fact": "2015-11-23T07:47:26Z → 2015-11-24T04:43:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:41–20:05 on the 23rd, 18:42–20:05 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 84 of 84 minutes on the 23rd and 0 of 84 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 32011 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Monday 23 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": "2015-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-23", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Monday 23 November. Trayodaśī runs from 09:47 on Mon 23 Nov to 06:44 on Tue 24 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-11-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28327, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-11-25T03:39:26+02:00", "utc": "2015-11-25T01:39:26Z", "ms": 1448415566414.1794 }, "end": { "local": "2015-11-26T00:44:15+02:00", "utc": "2015-11-25T22:44:15Z", "ms": 1448491454615.662 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-25T03:39:26+02:00", "utc": "2015-11-25T01:39:26Z", "ms": 1448415566414.1794 }, "end": { "local": "2015-11-26T00:44:15+02:00", "utc": "2015-11-25T22:44:15Z", "ms": 1448491454615.662 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-11-25", "window": { "start": { "local": "2015-11-25T11:31:33+02:00", "utc": "2015-11-25T09:31:33Z", "ms": 1448443893468.1975 }, "end": { "local": "2015-11-25T12:19:33+02:00", "utc": "2015-11-25T10:19:33Z", "ms": 1448446773468.1975 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-11-26", "window": { "start": { "local": "2015-11-26T11:31:52+02:00", "utc": "2015-11-26T09:31:52Z", "ms": 1448530311510.4543 }, "end": { "local": "2015-11-26T12:19:52+02:00", "utc": "2015-11-26T10:19:52Z", "ms": 1448533191510.4543 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:39 on Wed 25 Nov to 00:44 on Thu 26 Nov.", "fact": "2015-11-25T01:39:26Z → 2015-11-25T22:44:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:32–12:20 on the 25th, 11:32–12:20 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28327 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Soweto, 2015: Wednesday 25 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": "2015-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-25", "confidence": "determinate" } ], "quote": "In Soweto, Kārtikī Pūrṇimā 2015 falls on Wednesday 25 November. Pūrṇimā runs from 03:39 on Wed 25 Nov to 00:44 on Thu 26 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1486, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-11-25T03:39:26+02:00", "utc": "2015-11-25T01:39:26Z", "ms": 1448415566414.1794 }, "end": { "local": "2015-11-26T00:44:15+02:00", "utc": "2015-11-25T22:44:15Z", "ms": 1448491454615.662 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2015-11-25T03:39:26+02:00", "utc": "2015-11-25T01:39:26Z", "ms": 1448415566414.1794 }, "end": { "local": "2015-11-26T00:44:15+02:00", "utc": "2015-11-25T22:44:15Z", "ms": 1448491454615.662 } }, "kaala": "nishita", "days": [ { "local_date": "2015-11-24", "window": { "start": { "local": "2015-11-24T23:31:11+02:00", "utc": "2015-11-24T21:31:11Z", "ms": 1448400670775.8584 }, "end": { "local": "2015-11-25T00:19:11+02:00", "utc": "2015-11-24T22:19:11Z", "ms": 1448403550775.8584 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-11-25", "window": { "start": { "local": "2015-11-25T23:31:29+02:00", "utc": "2015-11-25T21:31:29Z", "ms": 1448487088851.5698 }, "end": { "local": "2015-11-26T00:19:29+02:00", "utc": "2015-11-25T22:19:29Z", "ms": 1448489968851.5698 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:39 on Wed 25 Nov to 00:44 on Thu 26 Nov.", "fact": "2015-11-25T01:39:26Z → 2015-11-25T22:44:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:31–00:19 on the 24th, 23:31–00:19 on the 25th.", "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 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1486 s" }, { "step": "ruling", "text": "Rāsayātrā, Soweto, 2015: Wednesday 25 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": "2015-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-25", "confidence": "determinate" } ], "quote": "In Soweto, Rāsayātrā 2015 falls on Wednesday 25 November. Pūrṇimā runs from 03:39 on Wed 25 Nov to 00:44 on Thu 26 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-11-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9841, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-11-28T18:31:06+02:00", "utc": "2015-11-28T16:31:06Z", "ms": 1448728265942.3276 }, "end": { "local": "2015-11-29T17:47:27+02:00", "utc": "2015-11-29T15:47:27Z", "ms": 1448812046944.6738 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-11-28T18:31:06+02:00", "utc": "2015-11-28T16:31:06Z", "ms": 1448728265942.3276 }, "end": { "local": "2015-11-29T17:47:27+02:00", "utc": "2015-11-29T15:47:27Z", "ms": 1448812046944.6738 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-11-28", "window": { "start": { "local": "2015-11-28T21:15:07+02:00", "utc": "2015-11-28T19:15:07Z", "ms": 1448738106592.2122 }, "end": { "local": "2015-11-28T21:15:07+02:00", "utc": "2015-11-28T19:15:07Z", "ms": 1448738106592.2122 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-11-29", "window": { "start": { "local": "2015-11-29T22:04:43+02:00", "utc": "2015-11-29T20:04:43Z", "ms": 1448827483226.7288 }, "end": { "local": "2015-11-29T22:04:43+02:00", "utc": "2015-11-29T20:04:43Z", "ms": 1448827483226.7288 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:31 on Sat 28 Nov to 17:47 on Sun 29 Nov.", "fact": "2015-11-28T16:31:06Z → 2015-11-29T15:47:27Z" }, { "step": "kaala", "text": "Moonrise is at 21:15 on the 28th and 22:05 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 28th and is not on the 29th.", "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 9841 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Saturday 28 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": "2015-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-11-28", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Saturday 28 November. Caturthī runs from 18:31 on Sat 28 Nov to 17:47 on Sun 29 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-11-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/ekadashi?on=2015-12-07", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2992, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-12-06T04:18:33+02:00", "utc": "2015-12-06T02:18:33Z", "ms": 1449368313003.0884 }, "end": { "local": "2015-12-07T06:53:08+02:00", "utc": "2015-12-07T04:53:08Z", "ms": 1449463987940.0903 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-06T04:18:33+02:00", "utc": "2015-12-06T02:18:33Z", "ms": 1449368313003.0884 }, "end": { "local": "2015-12-07T06:53:08+02:00", "utc": "2015-12-07T04:53:08Z", "ms": 1449463987940.0903 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-12-06", "window": { "start": { "local": "2015-12-06T05:08:25+02:00", "utc": "2015-12-06T03:08:25Z", "ms": 1449371304720.8367 }, "end": { "local": "2015-12-06T05:08:25+02:00", "utc": "2015-12-06T03:08:25Z", "ms": 1449371304720.8367 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-12-07", "window": { "start": { "local": "2015-12-07T05:08:33+02:00", "utc": "2015-12-07T03:08:33Z", "ms": 1449457712918.5994 }, "end": { "local": "2015-12-07T05:08:33+02:00", "utc": "2015-12-07T03:08:33Z", "ms": 1449457712918.5994 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:19 on Sun 6 Dec to 06:53 on Mon 7 Dec.", "fact": "2015-12-06T02:18:33Z → 2015-12-07T04:53:08Z" }, { "step": "kaala", "text": "Sunrise is at 05:08 on the 6th and 05:09 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 6th and is on the 7th.", "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 2992 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Soweto, 2015: Monday 7 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": "2015-12-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-07", "confidence": "determinate" } ], "quote": "In Soweto, Utpannā Ekādaśī 2015 falls on Monday 7 December. Ekādaśī runs from 04:19 on Sun 6 Dec to 06:53 on Mon 7 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-12-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/pradosha-vrata?on=2015-12-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29168, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-12-08T09:05:02+02:00", "utc": "2015-12-08T07:05:02Z", "ms": 1449558301854.184 }, "end": { "local": "2015-12-09T10:46:32+02:00", "utc": "2015-12-09T08:46:32Z", "ms": 1449650792271.1465 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-08T09:05:02+02:00", "utc": "2015-12-08T07:05:02Z", "ms": 1449558301854.184 }, "end": { "local": "2015-12-09T10:46:32+02:00", "utc": "2015-12-09T08:46:32Z", "ms": 1449650792271.1465 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-12-08", "window": { "start": { "local": "2015-12-08T18:51:59+02:00", "utc": "2015-12-08T16:51:59Z", "ms": 1449593519327.281 }, "end": { "local": "2015-12-08T20:14:15+02:00", "utc": "2015-12-08T18:14:15Z", "ms": 1449598454610.6055 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "2015-12-09", "window": { "start": { "local": "2015-12-09T18:52:40+02:00", "utc": "2015-12-09T16:52:40Z", "ms": 1449679960497.0027 }, "end": { "local": "2015-12-09T20:14:52+02:00", "utc": "2015-12-09T18:14:52Z", "ms": 1449684891998.18 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:05 on Tue 8 Dec to 10:47 on Wed 9 Dec.", "fact": "2015-12-08T07:05:02Z → 2015-12-09T08:46:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:14 on the 8th, 18:53–20:15 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 82 of 82 minutes on the 8th and 0 of 82 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 29168 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Soweto, 2015: Tuesday 8 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": "2015-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-08", "confidence": "determinate" } ], "quote": "In Soweto, Kṛṣṇa Pradoṣa Vrata 2015 falls on Tuesday 8 December. Trayodaśī runs from 09:05 on Tue 8 Dec to 10:47 on Wed 9 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-12-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/shivaratri?on=2015-12-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37326, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2015-12-09T10:46:32+02:00", "utc": "2015-12-09T08:46:32Z", "ms": 1449650792271.1465 }, "end": { "local": "2015-12-10T11:54:29+02:00", "utc": "2015-12-10T09:54:29Z", "ms": 1449741268972.354 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-09T10:46:32+02:00", "utc": "2015-12-09T08:46:32Z", "ms": 1449650792271.1465 }, "end": { "local": "2015-12-10T11:54:29+02:00", "utc": "2015-12-10T09:54:29Z", "ms": 1449741268972.354 } }, "kaala": "nishita", "days": [ { "local_date": "2015-12-08", "window": { "start": { "local": "2015-12-08T23:36:27+02:00", "utc": "2015-12-08T21:36:27Z", "ms": 1449610586639.748 }, "end": { "local": "2015-12-09T00:24:27+02:00", "utc": "2015-12-08T22:24:27Z", "ms": 1449613466639.748 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-12-09", "window": { "start": { "local": "2015-12-09T23:36:54+02:00", "utc": "2015-12-09T21:36:54Z", "ms": 1449697013626.4172 }, "end": { "local": "2015-12-10T00:24:54+02:00", "utc": "2015-12-09T22:24:54Z", "ms": 1449699893626.4172 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:47 on Wed 9 Dec to 11:54 on Thu 10 Dec.", "fact": "2015-12-09T08:46:32Z → 2015-12-10T09:54:29Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:36–00:24 on the 8th, 23:37–00:25 on the 9th.", "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 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37326 s" }, { "step": "ruling", "text": "Śivarātri, Soweto, 2015: Wednesday 9 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-09", "confidence": "determinate" } ], "quote": "In Soweto, Śivarātri 2015 falls on Wednesday 9 December. Caturdaśī runs from 10:47 on Wed 9 Dec to 11:54 on Thu 10 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/soweto/festivals/2015/shivaratri?on=2015-12-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/vinayaka-chaturthi?on=2015-12-14", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 475, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-12-14T11:31:09+02:00", "utc": "2015-12-14T09:31:09Z", "ms": 1450085469407.4673 }, "end": { "local": "2015-12-15T10:31:19+02:00", "utc": "2015-12-15T08:31:19Z", "ms": 1450168279181.693 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-14T11:31:09+02:00", "utc": "2015-12-14T09:31:09Z", "ms": 1450085469407.4673 }, "end": { "local": "2015-12-15T10:31:19+02:00", "utc": "2015-12-15T08:31:19Z", "ms": 1450168279181.693 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-12-14", "window": { "start": { "local": "2015-12-14T11:39:04+02:00", "utc": "2015-12-14T09:39:04Z", "ms": 1450085944487.6003 }, "end": { "local": "2015-12-14T12:27:04+02:00", "utc": "2015-12-14T10:27:04Z", "ms": 1450088824487.6003 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-12-15", "window": { "start": { "local": "2015-12-15T11:39:33+02:00", "utc": "2015-12-15T09:39:33Z", "ms": 1450172372923.4644 }, "end": { "local": "2015-12-15T12:27:33+02:00", "utc": "2015-12-15T10:27:33Z", "ms": 1450175252923.4644 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:31 on Mon 14 Dec to 10:31 on Tue 15 Dec.", "fact": "2015-12-14T09:31:09Z → 2015-12-15T08:31:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 14th, 11:40–12:28 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 475 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Soweto, 2015: Monday 14 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": "2015-12-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-14", "confidence": "determinate" } ], "quote": "In Soweto, Vināyaka Caturthī 2015 falls on Monday 14 December. Caturthī runs from 11:31 on Mon 14 Dec to 10:31 on Tue 15 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/vinayaka-chaturthi?on=2015-12-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4094, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2015-12-15T10:31:19+02:00", "utc": "2015-12-15T08:31:19Z", "ms": 1450168279181.693 }, "end": { "local": "2015-12-16T09:16:41+02:00", "utc": "2015-12-16T07:16:41Z", "ms": 1450250201206.9243 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-15T10:31:19+02:00", "utc": "2015-12-15T08:31:19Z", "ms": 1450168279181.693 }, "end": { "local": "2015-12-16T09:16:41+02:00", "utc": "2015-12-16T07:16:41Z", "ms": 1450250201206.9243 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-12-15", "window": { "start": { "local": "2015-12-15T11:39:33+02:00", "utc": "2015-12-15T09:39:33Z", "ms": 1450172372923.4644 }, "end": { "local": "2015-12-15T12:27:33+02:00", "utc": "2015-12-15T10:27:33Z", "ms": 1450175252923.4644 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-12-16", "window": { "start": { "local": "2015-12-16T11:40:02+02:00", "utc": "2015-12-16T09:40:02Z", "ms": 1450258801603.8145 }, "end": { "local": "2015-12-16T12:28:02+02:00", "utc": "2015-12-16T10:28:02Z", "ms": 1450261681603.8145 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 10:31 on Tue 15 Dec to 09:17 on Wed 16 Dec.", "fact": "2015-12-15T08:31:19Z → 2015-12-16T07:16:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 15th, 11:40–12:28 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4094 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Soweto, 2015: Tuesday 15 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami-margashirsha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (2nd) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-15", "confidence": "determinate" } ], "quote": "In Soweto, Nāga Pañcamī (Mārgaśīrṣa) 2015 falls on Tuesday 15 December. Pañcamī runs from 10:31 on Tue 15 Dec to 09:17 on Wed 16 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8600, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2015-12-16T09:16:41+02:00", "utc": "2015-12-16T07:16:41Z", "ms": 1450250201206.9243 }, "end": { "local": "2015-12-17T07:48:56+02:00", "utc": "2015-12-17T05:48:56Z", "ms": 1450331335561.605 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-16T09:16:41+02:00", "utc": "2015-12-16T07:16:41Z", "ms": 1450250201206.9243 }, "end": { "local": "2015-12-17T07:48:56+02:00", "utc": "2015-12-17T05:48:56Z", "ms": 1450331335561.605 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-12-16", "window": { "start": { "local": "2015-12-16T11:40:02+02:00", "utc": "2015-12-16T09:40:02Z", "ms": 1450258801603.8145 }, "end": { "local": "2015-12-16T12:28:02+02:00", "utc": "2015-12-16T10:28:02Z", "ms": 1450261681603.8145 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-12-17", "window": { "start": { "local": "2015-12-17T11:40:30+02:00", "utc": "2015-12-17T09:40:30Z", "ms": 1450345230493.064 }, "end": { "local": "2015-12-17T12:28:30+02:00", "utc": "2015-12-17T10:28:30Z", "ms": 1450348110493.064 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:17 on Wed 16 Dec to 07:49 on Thu 17 Dec.", "fact": "2015-12-16T07:16:41Z → 2015-12-17T05:48:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 16th, 11:41–12:29 on the 17th.", "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 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8600 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Soweto, 2015: Wednesday 16 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "champa-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-16", "confidence": "determinate" } ], "quote": "In Soweto, Campā Ṣaṣṭhī 2015 falls on Wednesday 16 December. Ṣaṣṭhī runs from 09:17 on Wed 16 Dec to 07:49 on Thu 17 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8600, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2015-12-16T09:16:41+02:00", "utc": "2015-12-16T07:16:41Z", "ms": 1450250201206.9243 }, "end": { "local": "2015-12-17T07:48:56+02:00", "utc": "2015-12-17T05:48:56Z", "ms": 1450331335561.605 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-16T09:16:41+02:00", "utc": "2015-12-16T07:16:41Z", "ms": 1450250201206.9243 }, "end": { "local": "2015-12-17T07:48:56+02:00", "utc": "2015-12-17T05:48:56Z", "ms": 1450331335561.605 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-12-16", "window": { "start": { "local": "2015-12-16T11:40:02+02:00", "utc": "2015-12-16T09:40:02Z", "ms": 1450258801603.8145 }, "end": { "local": "2015-12-16T12:28:02+02:00", "utc": "2015-12-16T10:28:02Z", "ms": 1450261681603.8145 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-12-17", "window": { "start": { "local": "2015-12-17T11:40:30+02:00", "utc": "2015-12-17T09:40:30Z", "ms": 1450345230493.064 }, "end": { "local": "2015-12-17T12:28:30+02:00", "utc": "2015-12-17T10:28:30Z", "ms": 1450348110493.064 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:17 on Wed 16 Dec to 07:49 on Thu 17 Dec.", "fact": "2015-12-16T07:16:41Z → 2015-12-17T05:48:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 16th, 11:41–12:29 on the 17th.", "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 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8600 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Soweto, 2015: Wednesday 16 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2015-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-16", "confidence": "determinate" } ], "quote": "In Soweto, Skanda Ṣaṣṭhī 2015 falls on Wednesday 16 December. Ṣaṣṭhī runs from 09:17 on Wed 16 Dec to 07:49 on Thu 17 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13895, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2015-12-17T07:48:56+02:00", "utc": "2015-12-17T05:48:56Z", "ms": 1450331335561.605 }, "end": { "local": "2015-12-18T06:08:50+02:00", "utc": "2015-12-18T04:08:50Z", "ms": 1450411730345.9517 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-17T07:48:56+02:00", "utc": "2015-12-17T05:48:56Z", "ms": 1450331335561.605 }, "end": { "local": "2015-12-18T06:08:50+02:00", "utc": "2015-12-18T04:08:50Z", "ms": 1450411730345.9517 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-12-17", "window": { "start": { "local": "2015-12-17T11:40:30+02:00", "utc": "2015-12-17T09:40:30Z", "ms": 1450345230493.064 }, "end": { "local": "2015-12-17T12:28:30+02:00", "utc": "2015-12-17T10:28:30Z", "ms": 1450348110493.064 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2015-12-18", "window": { "start": { "local": "2015-12-18T11:41:00+02:00", "utc": "2015-12-18T09:41:00Z", "ms": 1450431659556.2495 }, "end": { "local": "2015-12-18T12:29:00+02:00", "utc": "2015-12-18T10:29:00Z", "ms": 1450434539556.2495 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 07:49 on Thu 17 Dec to 06:09 on Fri 18 Dec.", "fact": "2015-12-17T05:48:56Z → 2015-12-18T04:08:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 17th, 11:41–12:29 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13895 s" }, { "step": "ruling", "text": "Mitra Saptamī, Soweto, 2015: Thursday 17 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": "2015-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-17", "confidence": "determinate" } ], "quote": "In Soweto, Mitra Saptamī 2015 falls on Thursday 17 December. Saptamī runs from 07:49 on Thu 17 Dec to 06:09 on Fri 18 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/ekadashi?on=2015-12-21", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18720, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2015-12-21T00:01:01+02:00", "utc": "2015-12-20T22:01:01Z", "ms": 1450648861056.639 }, "end": { "local": "2015-12-21T21:41:44+02:00", "utc": "2015-12-21T19:41:44Z", "ms": 1450726903574.745 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-21T00:01:01+02:00", "utc": "2015-12-20T22:01:01Z", "ms": 1450648861056.639 }, "end": { "local": "2015-12-21T21:41:44+02:00", "utc": "2015-12-21T19:41:44Z", "ms": 1450726903574.745 } }, "kaala": "sunrise", "days": [ { "local_date": "2015-12-21", "window": { "start": { "local": "2015-12-21T05:13:01+02:00", "utc": "2015-12-21T03:13:01Z", "ms": 1450667581123.0085 }, "end": { "local": "2015-12-21T05:13:01+02:00", "utc": "2015-12-21T03:13:01Z", "ms": 1450667581123.0085 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-12-22", "window": { "start": { "local": "2015-12-22T05:13:30+02:00", "utc": "2015-12-22T03:13:30Z", "ms": 1450754010220.5862 }, "end": { "local": "2015-12-22T05:13:30+02:00", "utc": "2015-12-22T03:13:30Z", "ms": 1450754010220.5862 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:01 on Mon 21 Dec to 21:42 on Mon 21 Dec.", "fact": "2015-12-20T22:01:01Z → 2015-12-21T19:41:44Z" }, { "step": "kaala", "text": "Sunrise is at 05:13 on the 21st and 05:14 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 18720 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Soweto, 2015: Monday 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": "2015-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-21", "confidence": "determinate" } ], "quote": "In Soweto, Mokṣadā Ekādaśī 2015 falls on Monday 21 December. Ekādaśī runs from 00:01 on Mon 21 Dec to 21:42 on Mon 21 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/ekadashi?on=2015-12-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24567, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2015-12-21T21:41:44+02:00", "utc": "2015-12-21T19:41:44Z", "ms": 1450726903574.745 }, "end": { "local": "2015-12-22T19:20:24+02:00", "utc": "2015-12-22T17:20:24Z", "ms": 1450804824139.601 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-21T21:41:44+02:00", "utc": "2015-12-21T19:41:44Z", "ms": 1450726903574.745 }, "end": { "local": "2015-12-22T19:20:24+02:00", "utc": "2015-12-22T17:20:24Z", "ms": 1450804824139.601 } }, "kaala": "madhyahna", "days": [ { "local_date": "2015-12-21", "window": { "start": { "local": "2015-12-21T11:42:27+02:00", "utc": "2015-12-21T09:42:27Z", "ms": 1450690947453.4482 }, "end": { "local": "2015-12-21T12:30:27+02:00", "utc": "2015-12-21T10:30:27Z", "ms": 1450693827453.4482 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2015-12-22", "window": { "start": { "local": "2015-12-22T11:42:57+02:00", "utc": "2015-12-22T09:42:57Z", "ms": 1450777376881.5518 }, "end": { "local": "2015-12-22T12:30:57+02:00", "utc": "2015-12-22T10:30:57Z", "ms": 1450780256881.5518 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 21:42 on Mon 21 Dec to 19:20 on Tue 22 Dec.", "fact": "2015-12-21T19:41:44Z → 2015-12-22T17:20:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 21st, 11:43–12:31 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24567 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Soweto, 2015: Tuesday 22 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": "2015-12-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-22", "confidence": "determinate" } ], "quote": "In Soweto, Akhaṇḍa Dvādaśī 2015 falls on Tuesday 22 December. Dvādaśī runs from 21:42 on Mon 21 Dec to 19:20 on Tue 22 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/pradosha-vrata?on=2015-12-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1201, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2015-12-22T19:20:24+02:00", "utc": "2015-12-22T17:20:24Z", "ms": 1450804824139.601 }, "end": { "local": "2015-12-23T17:03:10+02:00", "utc": "2015-12-23T15:03:10Z", "ms": 1450882989659.3704 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-22T19:20:24+02:00", "utc": "2015-12-22T17:20:24Z", "ms": 1450804824139.601 }, "end": { "local": "2015-12-23T17:03:10+02:00", "utc": "2015-12-23T15:03:10Z", "ms": 1450882989659.3704 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-12-22", "window": { "start": { "local": "2015-12-22T19:00:24+02:00", "utc": "2015-12-22T17:00:24Z", "ms": 1450803623542.5176 }, "end": { "local": "2015-12-22T20:22:12+02:00", "utc": "2015-12-22T18:22:12Z", "ms": 1450808532468.8582 } }, "covered_min": 62, "window_min": 82, "qualifies": true }, { "local_date": "2015-12-23", "window": { "start": { "local": "2015-12-23T19:00:52+02:00", "utc": "2015-12-23T17:00:52Z", "ms": 1450890052156.2634 }, "end": { "local": "2015-12-23T20:22:41+02:00", "utc": "2015-12-23T18:22:41Z", "ms": 1450894961455.5803 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:20 on Tue 22 Dec to 17:03 on Wed 23 Dec.", "fact": "2015-12-22T17:20:24Z → 2015-12-23T15:03:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:00–20:22 on the 22nd, 19:01–20:23 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 62 of 82 minutes on the 22nd and 0 of 82 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 1201 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Soweto, 2015: Tuesday 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": "2015-12-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-22", "confidence": "determinate" } ], "quote": "In Soweto, Śukla Pradoṣa Vrata 2015 falls on Tuesday 22 December. Trayodaśī runs from 19:20 on Tue 22 Dec to 17:03 on Wed 23 Dec and covers 62 of 82 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/pradosha-vrata?on=2015-12-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/soweto/festivals/2015/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14634, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2015-12-24T14:57:25+02:00", "utc": "2015-12-24T12:57:25Z", "ms": 1450961845491.65 }, "end": { "local": "2015-12-25T13:11:28+02:00", "utc": "2015-12-25T11:11:28Z", "ms": 1451041888366.648 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-24T14:57:25+02:00", "utc": "2015-12-24T12:57:25Z", "ms": 1450961845491.65 }, "end": { "local": "2015-12-25T13:11:28+02:00", "utc": "2015-12-25T11:11:28Z", "ms": 1451041888366.648 } }, "kaala": "pradosha", "days": [ { "local_date": "2015-12-24", "window": { "start": { "local": "2015-12-24T19:01:20+02:00", "utc": "2015-12-24T17:01:20Z", "ms": 1450976479596.4521 }, "end": { "local": "2015-12-24T20:23:10+02:00", "utc": "2015-12-24T18:23:10Z", "ms": 1450981389573.321 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "2015-12-25", "window": { "start": { "local": "2015-12-25T19:01:46+02:00", "utc": "2015-12-25T17:01:46Z", "ms": 1451062905835.7039 }, "end": { "local": "2015-12-25T20:23:37+02:00", "utc": "2015-12-25T18:23:37Z", "ms": 1451067816794.145 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 14:57 on Thu 24 Dec to 13:11 on Fri 25 Dec.", "fact": "2015-12-24T12:57:25Z → 2015-12-25T11:11:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:01–20:23 on the 24th, 19:02–20:24 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 82 of 82 minutes on the 24th and 0 of 82 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14634 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Soweto, 2015: Thursday 24 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": "2015-12-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-24", "confidence": "determinate" } ], "quote": "In Soweto, Dattātreyotpatti (Datta Jayanti) 2015 falls on Thursday 24 December. Pūrṇimā runs from 14:57 on Thu 24 Dec to 13:11 on Fri 25 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/soweto/festivals/2015/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": "/soweto/festivals/2015/sankashta-chaturthi?on=2015-12-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "953781", "year": 2015, "local_date": "2015-12-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36359, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2015-12-28T11:12:51+02:00", "utc": "2015-12-28T09:12:51Z", "ms": 1451293970825.948 }, "end": { "local": "2015-12-29T11:58:43+02:00", "utc": "2015-12-29T09:58:43Z", "ms": 1451383122843.6812 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2015-12-28T11:12:51+02:00", "utc": "2015-12-28T09:12:51Z", "ms": 1451293970825.948 }, "end": { "local": "2015-12-29T11:58:43+02:00", "utc": "2015-12-29T09:58:43Z", "ms": 1451383122843.6812 } }, "kaala": "moonrise", "days": [ { "local_date": "2015-12-28", "window": { "start": { "local": "2015-12-28T21:24:52+02:00", "utc": "2015-12-28T19:24:52Z", "ms": 1451330691677.9475 }, "end": { "local": "2015-12-28T21:24:52+02:00", "utc": "2015-12-28T19:24:52Z", "ms": 1451330691677.9475 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2015-12-29", "window": { "start": { "local": "2015-12-29T22:04:41+02:00", "utc": "2015-12-29T20:04:41Z", "ms": 1451419481377.2786 }, "end": { "local": "2015-12-29T22:04:41+02:00", "utc": "2015-12-29T20:04:41Z", "ms": 1451419481377.2786 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:13 on Mon 28 Dec to 11:59 on Tue 29 Dec.", "fact": "2015-12-28T09:12:51Z → 2015-12-29T09:58:43Z" }, { "step": "kaala", "text": "Moonrise is at 21:25 on the 28th and 22:05 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 28th and is not on the 29th.", "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 36359 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Soweto, 2015: Monday 28 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": "2015-12-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2015-12-28", "confidence": "determinate" } ], "quote": "In Soweto, Saṅkaṣṭa Caturthī 2015 falls on Monday 28 December. Caturthī runs from 11:13 on Mon 28 Dec to 11:59 on Tue 29 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/soweto/festivals/2015/sankashta-chaturthi?on=2015-12-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }