{ "id": "/toronto/festivals/1963", "place": { "id": "6167865", "slug": "toronto", "name": "Toronto", "region": "Ontario, Canada", "country": "CA", "lat": 43.65333, "lon": -79.38389, "elevation_m": 92, "tz": "America/Toronto" }, "year": 1963, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/toronto/festivals/1963/ekadashi?on=1963-01-05", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19013, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-01-05T02:34:42-05:00", "utc": "1963-01-05T07:34:42Z", "ms": -220551918202.79712 }, "end": { "local": "1963-01-06T00:25:54-05:00", "utc": "1963-01-06T05:25:54Z", "ms": -220473245701.04218 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-01-05T02:34:42-05:00", "utc": "1963-01-05T07:34:42Z", "ms": -220551918202.79712 }, "end": { "local": "1963-01-06T00:25:54-05:00", "utc": "1963-01-06T05:25:54Z", "ms": -220473245701.04218 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-01-05", "window": { "start": { "local": "1963-01-05T07:51:34-05:00", "utc": "1963-01-05T12:51:34Z", "ms": -220532905533.9907 }, "end": { "local": "1963-01-05T07:51:34-05:00", "utc": "1963-01-05T12:51:34Z", "ms": -220532905533.9907 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-01-06", "window": { "start": { "local": "1963-01-06T07:51:29-05:00", "utc": "1963-01-06T12:51:29Z", "ms": -220446511491.9672 }, "end": { "local": "1963-01-06T07:51:29-05:00", "utc": "1963-01-06T12:51:29Z", "ms": -220446511491.9672 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-01-06", "start": { "local": "1963-01-06T07:51:29-05:00", "utc": "1963-01-06T12:51:29Z", "ms": -220446511491.9672 }, "end": { "local": "1963-01-06T09:40:15-05:00", "utc": "1963-01-06T14:40:15Z", "ms": -220439985116.39035 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-01-06T22:25:10-05:00", "utc": "1963-01-07T03:25:10Z", "ms": -220394089669.4662 }, "hari_vasara_end": { "local": "1963-01-06T05:55:43-05:00", "utc": "1963-01-06T10:55:43Z", "ms": -220453456693.1482 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:35 on Sat 5 Jan to 00:26 on Sun 6 Jan.", "fact": "1963-01-05T07:34:42Z → 1963-01-06T05:25:54Z" }, { "step": "kaala", "text": "Sunrise is at 07:52 on the 5th and 07:51 on the 6th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 5th and is not on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19013 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Toronto, 1963: Saturday 5 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": "1963-01-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-05", "confidence": "determinate" } ], "quote": "In Toronto, Putradā Ekādaśī 1963 falls on Saturday 5 January. Ekādaśī runs from 02:35 on Sat 5 Jan to 00:26 on Sun 6 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-01-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-01-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6141, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-01-06T22:25:10-05:00", "utc": "1963-01-07T03:25:10Z", "ms": -220394089669.4662 }, "end": { "local": "1963-01-07T20:38:01-05:00", "utc": "1963-01-08T01:38:01Z", "ms": -220314118874.0296 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-01-06T22:25:10-05:00", "utc": "1963-01-07T03:25:10Z", "ms": -220394089669.4662 }, "end": { "local": "1963-01-07T20:38:01-05:00", "utc": "1963-01-08T01:38:01Z", "ms": -220314118874.0296 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-01-06", "window": { "start": { "local": "1963-01-06T16:55:20-05:00", "utc": "1963-01-06T21:55:20Z", "ms": -220413879614.08292 }, "end": { "local": "1963-01-06T18:54:48-05:00", "utc": "1963-01-06T23:54:48Z", "ms": -220406711660.58258 } }, "covered_min": 0, "window_min": 119, "qualifies": false }, { "local_date": "1963-01-07", "window": { "start": { "local": "1963-01-07T16:56:22-05:00", "utc": "1963-01-07T21:56:22Z", "ms": -220327418043.41864 }, "end": { "local": "1963-01-07T18:55:40-05:00", "utc": "1963-01-07T23:55:40Z", "ms": -220320259762.30765 } }, "covered_min": 119, "window_min": 119, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:25 on Sun 6 Jan to 20:38 on Mon 7 Jan.", "fact": "1963-01-07T03:25:10Z → 1963-01-08T01:38:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:55–18:55 on the 6th, 16:56–18:56 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 119 minutes on the 6th and 119 of 119 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6141 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Monday 7 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-07", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Monday 7 January. Trayodaśī runs from 22:25 on Sun 6 Jan to 20:38 on Mon 7 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-01-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-01-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5200, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-01-12T18:21:46-05:00", "utc": "1963-01-12T23:21:46Z", "ms": -219890293834.51978 }, "end": { "local": "1963-01-13T19:40:04-05:00", "utc": "1963-01-14T00:40:04Z", "ms": -219799196247.66696 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-12T18:21:46-05:00", "utc": "1963-01-12T23:21:46Z", "ms": -219890293834.51978 }, "end": { "local": "1963-01-13T19:40:04-05:00", "utc": "1963-01-14T00:40:04Z", "ms": -219799196247.66696 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-01-12", "window": { "start": { "local": "1963-01-12T20:04:35-05:00", "utc": "1963-01-13T01:04:35Z", "ms": -219884125065.07083 }, "end": { "local": "1963-01-12T20:04:35-05:00", "utc": "1963-01-13T01:04:35Z", "ms": -219884125065.07083 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-01-13", "window": { "start": { "local": "1963-01-13T21:06:44-05:00", "utc": "1963-01-14T02:06:44Z", "ms": -219793995942.9219 }, "end": { "local": "1963-01-13T21:06:44-05:00", "utc": "1963-01-14T02:06:44Z", "ms": -219793995942.9219 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:22 on Sat 12 Jan to 19:40 on Sun 13 Jan.", "fact": "1963-01-12T23:21:46Z → 1963-01-14T00:40:04Z" }, { "step": "kaala", "text": "Moonrise is at 20:05 on the 12th and 21:07 on the 13th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5200 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Saturday 12 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-12", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Saturday 12 January. Caturthī runs from 18:22 on Sat 12 Jan to 19:40 on Sun 13 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-01-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28072, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 }, "end": { "local": "1963-02-12T13:48:22-05:00", "utc": "1963-02-12T18:48:22Z", "ms": -217228297558.52316 } }, "span": { "of": "transit", "start": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 }, "end": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 } }, "kaala": "sunset-day", "days": [ { "local_date": "1963-01-13", "window": { "start": { "local": "1963-01-12T17:01:51-05:00", "utc": "1963-01-12T22:01:51Z", "ms": -219895088868.99896 }, "end": { "local": "1963-01-13T17:03:01-05:00", "utc": "1963-01-13T22:03:01Z", "ms": -219808619170.4947 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1963-01-14", "window": { "start": { "local": "1963-01-13T17:03:01-05:00", "utc": "1963-01-13T22:03:01Z", "ms": -219808619170.4947 }, "end": { "local": "1963-01-14T17:04:12-05:00", "utc": "1963-01-14T22:04:12Z", "ms": -219722148319.0491 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1963-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 00:51 on Mon 14 Jan.", "fact": "1963-01-14T05:50:52Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:03, and the day of the 14th ends at 17:04.", "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 28072 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Toronto, 1963: Sunday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1963-01-13", "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": "1963-01-12", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Toronto, Bhogi 1963 falls on Sunday 13 January. It is kept the day before Pongal, which falls on Monday 14 January. The Sun enters Makara at 00:51 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28072, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 }, "end": { "local": "1963-02-12T13:48:22-05:00", "utc": "1963-02-12T18:48:22Z", "ms": -217228297558.52316 } }, "span": { "of": "transit", "start": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 }, "end": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 } }, "kaala": "sunset-day", "days": [ { "local_date": "1963-01-13", "window": { "start": { "local": "1963-01-12T17:01:51-05:00", "utc": "1963-01-12T22:01:51Z", "ms": -219895088868.99896 }, "end": { "local": "1963-01-13T17:03:01-05:00", "utc": "1963-01-13T22:03:01Z", "ms": -219808619170.4947 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1963-01-14", "window": { "start": { "local": "1963-01-13T17:03:01-05:00", "utc": "1963-01-13T22:03:01Z", "ms": -219808619170.4947 }, "end": { "local": "1963-01-14T17:04:12-05:00", "utc": "1963-01-14T22:04:12Z", "ms": -219722148319.0491 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 00:51 on Mon 14 Jan.", "fact": "1963-01-14T05:50:52Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:03, and the day of the 14th ends at 17:04.", "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 28072 s" }, { "step": "ruling", "text": "Pongal, Toronto, 1963: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1963-01-14", "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": "1963-01-13", "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 Toronto, Pongal 1963 falls on Monday 14 January. The Sun enters Makara at 00:51 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3052, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 }, "end": { "local": "1963-02-12T13:48:22-05:00", "utc": "1963-02-12T18:48:22Z", "ms": -217228297558.52316 } }, "span": { "of": "transit", "start": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 }, "end": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 } }, "kaala": "civil-day", "days": [ { "local_date": "1963-01-13", "window": { "start": { "local": "1963-01-13T00:00:00-05:00", "utc": "1963-01-13T05:00:00Z", "ms": -219870000000 }, "end": { "local": "1963-01-14T00:00:00-05:00", "utc": "1963-01-14T05:00:00Z", "ms": -219783600000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "1963-01-14", "window": { "start": { "local": "1963-01-14T00:00:00-05:00", "utc": "1963-01-14T05:00:00Z", "ms": -219783600000 }, "end": { "local": "1963-01-15T00:00:00-05:00", "utc": "1963-01-15T05:00:00Z", "ms": -219697200000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 00:51 on Mon 14 Jan.", "fact": "1963-01-14T05:50:52Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Toronto.", "fact": "civil-day: midnight-to-midnight · America/Toronto" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 3052 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Toronto, 1963: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1963-01-13", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1963-01-14", "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 Toronto, Makara Saṅkrānti 1963 falls on Monday 14 January. The Sun enters Makara at 00:51 on Mon 14 Jan, and the rule counts the day from midnight. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28072, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 }, "end": { "local": "1963-02-12T13:48:22-05:00", "utc": "1963-02-12T18:48:22Z", "ms": -217228297558.52316 } }, "span": { "of": "transit", "start": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 }, "end": { "local": "1963-01-14T00:50:52-05:00", "utc": "1963-01-14T05:50:52Z", "ms": -219780547537.6592 } }, "kaala": "sunset-day", "days": [ { "local_date": "1963-01-13", "window": { "start": { "local": "1963-01-12T17:01:51-05:00", "utc": "1963-01-12T22:01:51Z", "ms": -219895088868.99896 }, "end": { "local": "1963-01-13T17:03:01-05:00", "utc": "1963-01-13T22:03:01Z", "ms": -219808619170.4947 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1963-01-14", "window": { "start": { "local": "1963-01-13T17:03:01-05:00", "utc": "1963-01-13T22:03:01Z", "ms": -219808619170.4947 }, "end": { "local": "1963-01-14T17:04:12-05:00", "utc": "1963-01-14T22:04:12Z", "ms": -219722148319.0491 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1963-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 00:51 on Mon 14 Jan.", "fact": "1963-01-14T05:50:52Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:03, and the day of the 14th ends at 17:04.", "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 28072 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Toronto, 1963: Tuesday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1963-01-15", "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": "1963-01-14", "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 Toronto, Mattu Pongal 1963 falls on Tuesday 15 January. It is kept the day after Pongal, which falls on Monday 14 January. The Sun enters Makara at 00:51 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-01-21", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4197, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-01-20T08:55:46-05:00", "utc": "1963-01-20T13:55:46Z", "ms": -219233053798.39212 }, "end": { "local": "1963-01-21T10:11:41-05:00", "utc": "1963-01-21T15:11:41Z", "ms": -219142098601.7816 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-20T08:55:46-05:00", "utc": "1963-01-20T13:55:46Z", "ms": -219233053798.39212 }, "end": { "local": "1963-01-21T10:11:41-05:00", "utc": "1963-01-21T15:11:41Z", "ms": -219142098601.7816 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-01-20", "window": { "start": { "local": "1963-01-20T07:45:49-05:00", "utc": "1963-01-20T12:45:49Z", "ms": -219237251128.01123 }, "end": { "local": "1963-01-20T07:45:49-05:00", "utc": "1963-01-20T12:45:49Z", "ms": -219237251128.01123 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-01-21", "window": { "start": { "local": "1963-01-21T07:45:07-05:00", "utc": "1963-01-21T12:45:07Z", "ms": -219150892822.87045 }, "end": { "local": "1963-01-21T07:45:07-05:00", "utc": "1963-01-21T12:45:07Z", "ms": -219150892822.87045 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-01-22", "start": { "local": "1963-01-22T07:44:23-05:00", "utc": "1963-01-22T12:44:23Z", "ms": -219064536700.4493 }, "end": { "local": "1963-01-22T09:38:21-05:00", "utc": "1963-01-22T14:38:21Z", "ms": -219057698772.60522 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-01-22T10:47:48-05:00", "utc": "1963-01-22T15:47:48Z", "ms": -219053532463.14526 }, "hari_vasara_end": { "local": "1963-01-21T16:20:43-05:00", "utc": "1963-01-21T21:20:43Z", "ms": -219119957067.1225 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:56 on Sun 20 Jan to 10:12 on Mon 21 Jan.", "fact": "1963-01-20T13:55:46Z → 1963-01-21T15:11:41Z" }, { "step": "kaala", "text": "Sunrise is at 07:46 on the 20th and 07:45 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4197 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Toronto, 1963: Monday 21 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": "1963-01-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-21", "confidence": "determinate" } ], "quote": "In Toronto, Ṣaṭtilā Ekādaśī 1963 falls on Monday 21 January. Ekādaśī runs from 08:56 on Sun 20 Jan to 10:12 on Mon 21 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-01-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-01-22", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23185, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-01-22T10:47:48-05:00", "utc": "1963-01-22T15:47:48Z", "ms": -219053532463.14526 }, "end": { "local": "1963-01-23T10:43:00-05:00", "utc": "1963-01-23T15:43:00Z", "ms": -218967419637.04712 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-22T10:47:48-05:00", "utc": "1963-01-22T15:47:48Z", "ms": -219053532463.14526 }, "end": { "local": "1963-01-23T10:43:00-05:00", "utc": "1963-01-23T15:43:00Z", "ms": -218967419637.04712 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-01-22", "window": { "start": { "local": "1963-01-22T17:14:13-05:00", "utc": "1963-01-22T22:14:13Z", "ms": -219030347061.22888 }, "end": { "local": "1963-01-22T19:10:08-05:00", "utc": "1963-01-23T00:10:08Z", "ms": -219023391817.14108 } }, "covered_min": 116, "window_min": 116, "qualifies": true }, { "local_date": "1963-01-23", "window": { "start": { "local": "1963-01-23T17:15:32-05:00", "utc": "1963-01-23T22:15:32Z", "ms": -218943868478.74014 }, "end": { "local": "1963-01-23T19:11:10-05:00", "utc": "1963-01-24T00:11:10Z", "ms": -218936930132.60947 } }, "covered_min": 0, "window_min": 116, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:48 on Tue 22 Jan to 10:43 on Wed 23 Jan.", "fact": "1963-01-22T15:47:48Z → 1963-01-23T15:43:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:14–19:10 on the 22nd, 17:16–19:11 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 116 of 116 minutes on the 22nd and 0 of 116 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 23185 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Tuesday 22 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": "1963-01-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-22", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Tuesday 22 January. Trayodaśī runs from 10:48 on Tue 22 Jan to 10:43 on Wed 23 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-01-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-01-23", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32781, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-01-23T10:43:00-05:00", "utc": "1963-01-23T15:43:00Z", "ms": -218967419637.04712 }, "end": { "local": "1963-01-24T09:59:31-05:00", "utc": "1963-01-24T14:59:31Z", "ms": -218883629073.49225 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-23T10:43:00-05:00", "utc": "1963-01-23T15:43:00Z", "ms": -218967419637.04712 }, "end": { "local": "1963-01-24T09:59:31-05:00", "utc": "1963-01-24T14:59:31Z", "ms": -218883629073.49225 } }, "kaala": "nishita", "days": [ { "local_date": "1963-01-22", "window": { "start": { "local": "1963-01-23T00:04:55-05:00", "utc": "1963-01-23T05:04:55Z", "ms": -219005704895.89966 }, "end": { "local": "1963-01-23T00:52:55-05:00", "utc": "1963-01-23T05:52:55Z", "ms": -219002824895.89966 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-01-23", "window": { "start": { "local": "1963-01-24T00:05:10-05:00", "utc": "1963-01-24T05:05:10Z", "ms": -218919289680.75006 }, "end": { "local": "1963-01-24T00:53:10-05:00", "utc": "1963-01-24T05:53:10Z", "ms": -218916409680.75006 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:43 on Wed 23 Jan to 10:00 on Thu 24 Jan.", "fact": "1963-01-23T15:43:00Z → 1963-01-24T14:59:31Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:05–00:53 on the 22nd, 00:05–00:53 on the 23rd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32781 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Wednesday 23 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": "1963-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-23", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Wednesday 23 January. Caturdaśī runs from 10:43 on Wed 23 Jan to 10:00 on Thu 24 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-01-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8202, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-01-23T10:43:00-05:00", "utc": "1963-01-23T15:43:00Z", "ms": -218967419637.04712 }, "end": { "local": "1963-01-24T09:59:31-05:00", "utc": "1963-01-24T14:59:31Z", "ms": -218883629073.49225 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-23T10:43:00-05:00", "utc": "1963-01-23T15:43:00Z", "ms": -218967419637.04712 }, "end": { "local": "1963-01-24T09:59:31-05:00", "utc": "1963-01-24T14:59:31Z", "ms": -218883629073.49225 } }, "kaala": "arunodaya", "days": [ { "local_date": "1963-01-23", "window": { "start": { "local": "1963-01-23T05:47:42-05:00", "utc": "1963-01-23T10:47:42Z", "ms": -218985137974.65823 }, "end": { "local": "1963-01-23T07:43:37-05:00", "utc": "1963-01-23T12:43:37Z", "ms": -218978182730.57043 } }, "covered_min": 0, "window_min": 116, "qualifies": false }, { "local_date": "1963-01-24", "window": { "start": { "local": "1963-01-24T05:47:11-05:00", "utc": "1963-01-24T10:47:11Z", "ms": -218898769228.8907 }, "end": { "local": "1963-01-24T07:42:49-05:00", "utc": "1963-01-24T12:42:49Z", "ms": -218891830882.76 } }, "covered_min": 116, "window_min": 116, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:43 on Wed 23 Jan to 10:00 on Thu 24 Jan.", "fact": "1963-01-23T15:43:00Z → 1963-01-24T14:59:31Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:48–07:44 on the 23rd, 05:47–07:43 on the 24th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 116 minutes on the 23rd and 116 of 116 on the 24th.", "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 8202 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Toronto, 1963: Thursday 24 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": "1963-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-24", "confidence": "determinate" } ], "quote": "In Toronto, Yama Tarpaṇa 1963 falls on Thursday 24 January. Caturdaśī runs from 10:43 on Wed 23 Jan to 10:00 on Thu 24 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34695, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-01-28T02:28:29-05:00", "utc": "1963-01-28T07:28:29Z", "ms": -218565091342.54956 }, "end": { "local": "1963-01-29T00:00:23-05:00", "utc": "1963-01-29T05:00:23Z", "ms": -218487576768.20053 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-28T02:28:29-05:00", "utc": "1963-01-28T07:28:29Z", "ms": -218565091342.54956 }, "end": { "local": "1963-01-29T00:00:23-05:00", "utc": "1963-01-29T05:00:23Z", "ms": -218487576768.20053 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-01-28", "window": { "start": { "local": "1963-01-28T12:06:44-05:00", "utc": "1963-01-28T17:06:44Z", "ms": -218530396138.12537 }, "end": { "local": "1963-01-28T12:54:44-05:00", "utc": "1963-01-28T17:54:44Z", "ms": -218527516138.12537 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-01-29", "window": { "start": { "local": "1963-01-29T12:06:55-05:00", "utc": "1963-01-29T17:06:55Z", "ms": -218443984707.1068 }, "end": { "local": "1963-01-29T12:54:55-05:00", "utc": "1963-01-29T17:54:55Z", "ms": -218441104707.1068 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:28 on Mon 28 Jan to 00:00 on Tue 29 Jan.", "fact": "1963-01-28T07:28:29Z → 1963-01-29T05:00:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 28th, 12:07–12:55 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 34695 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Toronto, 1963: Monday 28 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-28", "confidence": "determinate" } ], "quote": "In Toronto, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1963 falls on Monday 28 January. Caturthī runs from 02:28 on Mon 28 Jan to 00:00 on Tue 29 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17043, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-01-28T02:28:29-05:00", "utc": "1963-01-28T07:28:29Z", "ms": -218565091342.54956 }, "end": { "local": "1963-01-29T00:00:23-05:00", "utc": "1963-01-29T05:00:23Z", "ms": -218487576768.20053 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-28T02:28:29-05:00", "utc": "1963-01-28T07:28:29Z", "ms": -218565091342.54956 }, "end": { "local": "1963-01-29T00:00:23-05:00", "utc": "1963-01-29T05:00:23Z", "ms": -218487576768.20053 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-01-27", "window": { "start": { "local": "1963-01-27T17:20:51-05:00", "utc": "1963-01-27T22:20:51Z", "ms": -218597949041.1402 }, "end": { "local": "1963-01-27T19:15:18-05:00", "utc": "1963-01-28T00:15:18Z", "ms": -218591081715.1984 } }, "covered_min": 0, "window_min": 114, "qualifies": false }, { "local_date": "1963-01-28", "window": { "start": { "local": "1963-01-28T17:22:12-05:00", "utc": "1963-01-28T22:22:12Z", "ms": -218511468179.67404 }, "end": { "local": "1963-01-28T19:16:21-05:00", "utc": "1963-01-29T00:16:21Z", "ms": -218504619408.20212 } }, "covered_min": 114, "window_min": 114, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:28 on Mon 28 Jan to 00:00 on Tue 29 Jan.", "fact": "1963-01-28T07:28:29Z → 1963-01-29T05:00:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:21–19:15 on the 27th, 17:22–19:16 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 0 of 114 minutes on the 27th and 114 of 114 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17043 s" }, { "step": "ruling", "text": "Tila Caturthī, Toronto, 1963: Monday 28 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-28", "confidence": "determinate" } ], "quote": "In Toronto, Tila Caturthī 1963 falls on Monday 28 January. Caturthī runs from 02:28 on Mon 28 Jan to 00:00 on Tue 29 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30992, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1963-01-29T00:00:23-05:00", "utc": "1963-01-29T05:00:23Z", "ms": -218487576768.20053 }, "end": { "local": "1963-01-29T21:31:27-05:00", "utc": "1963-01-30T02:31:27Z", "ms": -218410112730.9369 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-29T00:00:23-05:00", "utc": "1963-01-29T05:00:23Z", "ms": -218487576768.20053 }, "end": { "local": "1963-01-29T21:31:27-05:00", "utc": "1963-01-30T02:31:27Z", "ms": -218410112730.9369 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-01-28", "window": { "start": { "local": "1963-01-28T12:06:44-05:00", "utc": "1963-01-28T17:06:44Z", "ms": -218530396138.12537 }, "end": { "local": "1963-01-28T12:54:44-05:00", "utc": "1963-01-28T17:54:44Z", "ms": -218527516138.12537 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-01-29", "window": { "start": { "local": "1963-01-29T12:06:55-05:00", "utc": "1963-01-29T17:06:55Z", "ms": -218443984707.1068 }, "end": { "local": "1963-01-29T12:54:55-05:00", "utc": "1963-01-29T17:54:55Z", "ms": -218441104707.1068 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:00 on Tue 29 Jan to 21:31 on Tue 29 Jan.", "fact": "1963-01-29T05:00:23Z → 1963-01-30T02:31:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 28th, 12:07–12:55 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30992 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Toronto, 1963: Tuesday 29 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-29", "confidence": "determinate" } ], "quote": "In Toronto, Śrī Pañcamī 1963 falls on Tuesday 29 January. Pañcamī runs from 00:00 on Tue 29 Jan to 21:31 on Tue 29 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30992, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1963-01-29T00:00:23-05:00", "utc": "1963-01-29T05:00:23Z", "ms": -218487576768.20053 }, "end": { "local": "1963-01-29T21:31:27-05:00", "utc": "1963-01-30T02:31:27Z", "ms": -218410112730.9369 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-29T00:00:23-05:00", "utc": "1963-01-29T05:00:23Z", "ms": -218487576768.20053 }, "end": { "local": "1963-01-29T21:31:27-05:00", "utc": "1963-01-30T02:31:27Z", "ms": -218410112730.9369 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-01-28", "window": { "start": { "local": "1963-01-28T12:06:44-05:00", "utc": "1963-01-28T17:06:44Z", "ms": -218530396138.12537 }, "end": { "local": "1963-01-28T12:54:44-05:00", "utc": "1963-01-28T17:54:44Z", "ms": -218527516138.12537 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-01-29", "window": { "start": { "local": "1963-01-29T12:06:55-05:00", "utc": "1963-01-29T17:06:55Z", "ms": -218443984707.1068 }, "end": { "local": "1963-01-29T12:54:55-05:00", "utc": "1963-01-29T17:54:55Z", "ms": -218441104707.1068 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:00 on Tue 29 Jan to 21:31 on Tue 29 Jan.", "fact": "1963-01-29T05:00:23Z → 1963-01-30T02:31:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 28th, 12:07–12:55 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30992 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Toronto, 1963: Tuesday 29 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-29", "confidence": "determinate" } ], "quote": "In Toronto, Vasanta Pañcamī 1963 falls on Tuesday 29 January. Pañcamī runs from 00:00 on Tue 29 Jan to 21:31 on Tue 29 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33374, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1963-01-30T19:07:16-05:00", "utc": "1963-01-31T00:07:16Z", "ms": -218332364255.61514 }, "end": { "local": "1963-01-31T16:52:30-05:00", "utc": "1963-01-31T21:52:30Z", "ms": -218254050253.0194 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-01-30T19:07:16-05:00", "utc": "1963-01-31T00:07:16Z", "ms": -218332364255.61514 }, "end": { "local": "1963-01-31T16:52:30-05:00", "utc": "1963-01-31T21:52:30Z", "ms": -218254050253.0194 } }, "kaala": "arunodaya", "days": [ { "local_date": "1963-01-30", "window": { "start": { "local": "1963-01-30T05:43:27-05:00", "utc": "1963-01-30T10:43:27Z", "ms": -218380592541.36716 }, "end": { "local": "1963-01-30T07:37:17-05:00", "utc": "1963-01-30T12:37:17Z", "ms": -218373762621.4884 } }, "covered_min": 0, "window_min": 114, "qualifies": false }, { "local_date": "1963-01-31", "window": { "start": { "local": "1963-01-31T05:42:44-05:00", "utc": "1963-01-31T10:42:44Z", "ms": -218294235526.251 }, "end": { "local": "1963-01-31T07:36:15-05:00", "utc": "1963-01-31T12:36:15Z", "ms": -218287424743.96008 } }, "covered_min": 114, "window_min": 114, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 19:07 on Wed 30 Jan to 16:52 on Thu 31 Jan.", "fact": "1963-01-31T00:07:16Z → 1963-01-31T21:52:30Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:43–07:37 on the 30th, 05:43–07:36 on the 31st.", "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 0 of 114 minutes on the 30th and 114 of 114 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33374 s" }, { "step": "ruling", "text": "Ratha Saptamī, Toronto, 1963: Thursday 31 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-01-31", "confidence": "determinate" } ], "quote": "In Toronto, Ratha Saptamī 1963 falls on Thursday 31 January. Saptamī runs from 19:07 on Wed 30 Jan to 16:52 on Thu 31 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-02-04", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10732, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-02-03T11:38:03-05:00", "utc": "1963-02-03T16:38:03Z", "ms": -218013717201.6004 }, "end": { "local": "1963-02-04T10:30:41-05:00", "utc": "1963-02-04T15:30:41Z", "ms": -217931359057.50076 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-02-03T11:38:03-05:00", "utc": "1963-02-03T16:38:03Z", "ms": -218013717201.6004 }, "end": { "local": "1963-02-04T10:30:41-05:00", "utc": "1963-02-04T15:30:41Z", "ms": -217931359057.50076 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-02-03", "window": { "start": { "local": "1963-02-03T07:32:58-05:00", "utc": "1963-02-03T12:32:58Z", "ms": -218028422090.64468 }, "end": { "local": "1963-02-03T07:32:58-05:00", "utc": "1963-02-03T12:32:58Z", "ms": -218028422090.64468 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-02-04", "window": { "start": { "local": "1963-02-04T07:31:49-05:00", "utc": "1963-02-04T12:31:49Z", "ms": -217942091396.1178 }, "end": { "local": "1963-02-04T07:31:49-05:00", "utc": "1963-02-04T12:31:49Z", "ms": -217942091396.1178 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-02-05", "start": { "local": "1963-02-05T07:30:38-05:00", "utc": "1963-02-05T12:30:38Z", "ms": -217855762392.70328 }, "end": { "local": "1963-02-05T09:31:07-05:00", "utc": "1963-02-05T14:31:07Z", "ms": -217848532753.23932 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-02-05T09:44:48-05:00", "utc": "1963-02-05T14:44:48Z", "ms": -217847712458.4717 }, "hari_vasara_end": { "local": "1963-02-04T16:19:13-05:00", "utc": "1963-02-04T21:19:13Z", "ms": -217910447407.7435 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:38 on Sun 3 Feb to 10:31 on Mon 4 Feb.", "fact": "1963-02-03T16:38:03Z → 1963-02-04T15:30:41Z" }, { "step": "kaala", "text": "Sunrise is at 07:33 on the 3rd and 07:32 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10732 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Toronto, 1963: Monday 4 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-02-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-04", "confidence": "determinate" } ], "quote": "In Toronto, Jayā Ekādaśī 1963 falls on Monday 4 February. Ekādaśī runs from 11:38 on Sun 3 Feb to 10:31 on Mon 4 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-02-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5825, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1963-02-04T10:30:41-05:00", "utc": "1963-02-04T15:30:41Z", "ms": -217931359057.50076 }, "end": { "local": "1963-02-05T09:44:48-05:00", "utc": "1963-02-05T14:44:48Z", "ms": -217847712458.4717 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-02-04T10:30:41-05:00", "utc": "1963-02-04T15:30:41Z", "ms": -217931359057.50076 }, "end": { "local": "1963-02-05T09:44:48-05:00", "utc": "1963-02-05T14:44:48Z", "ms": -217847712458.4717 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-02-04", "window": { "start": { "local": "1963-02-04T12:07:46-05:00", "utc": "1963-02-04T17:07:46Z", "ms": -217925533832.98022 }, "end": { "local": "1963-02-04T12:55:46-05:00", "utc": "1963-02-04T17:55:46Z", "ms": -217922653832.98022 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-02-05", "window": { "start": { "local": "1963-02-05T12:07:52-05:00", "utc": "1963-02-05T17:07:52Z", "ms": -217839128294.04337 }, "end": { "local": "1963-02-05T12:55:52-05:00", "utc": "1963-02-05T17:55:52Z", "ms": -217836248294.04337 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:31 on Mon 4 Feb to 09:45 on Tue 5 Feb.", "fact": "1963-02-04T15:30:41Z → 1963-02-05T14:44:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 4th, 12:08–12:56 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5825 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Toronto, 1963: Monday 4 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhishma-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-02-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-04", "confidence": "determinate" } ], "quote": "In Toronto, Bhīṣma Dvādaśī 1963 falls on Monday 4 February. Dvādaśī runs from 10:31 on Mon 4 Feb to 09:45 on Tue 5 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/pradosha-vrata?on=1963-02-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28098, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-02-05T09:44:48-05:00", "utc": "1963-02-05T14:44:48Z", "ms": -217847712458.4717 }, "end": { "local": "1963-02-06T09:21:55-05:00", "utc": "1963-02-06T14:21:55Z", "ms": -217762685219.2952 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-02-05T09:44:48-05:00", "utc": "1963-02-05T14:44:48Z", "ms": -217847712458.4717 }, "end": { "local": "1963-02-06T09:21:55-05:00", "utc": "1963-02-06T14:21:55Z", "ms": -217762685219.2952 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-02-05", "window": { "start": { "local": "1963-02-05T17:33:06-05:00", "utc": "1963-02-05T22:33:06Z", "ms": -217819614195.38345 }, "end": { "local": "1963-02-05T19:24:36-05:00", "utc": "1963-02-06T00:24:36Z", "ms": -217812923640.99777 } }, "covered_min": 112, "window_min": 112, "qualifies": true }, { "local_date": "1963-02-06", "window": { "start": { "local": "1963-02-06T17:34:28-05:00", "utc": "1963-02-06T22:34:28Z", "ms": -217733132123.4586 }, "end": { "local": "1963-02-06T19:25:38-05:00", "utc": "1963-02-07T00:25:38Z", "ms": -217726462412.00906 } }, "covered_min": 0, "window_min": 111, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:45 on Tue 5 Feb to 09:22 on Wed 6 Feb.", "fact": "1963-02-05T14:44:48Z → 1963-02-06T14:21:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:33–19:25 on the 5th, 17:34–19:26 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 112 of 112 minutes on the 5th and 0 of 111 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28098 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Tuesday 5 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": "1963-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-05", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Tuesday 5 February. Trayodaśī runs from 09:45 on Tue 5 Feb to 09:22 on Wed 6 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-02-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8185, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-02-07T09:23:40-05:00", "utc": "1963-02-07T14:23:40Z", "ms": -217676179979.53055 }, "end": { "local": "1963-02-08T09:51:39-05:00", "utc": "1963-02-08T14:51:39Z", "ms": -217588101459.28638 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1963-02-07T09:23:40-05:00", "utc": "1963-02-07T14:23:40Z", "ms": -217676179979.53055 }, "end": { "local": "1963-02-08T09:51:39-05:00", "utc": "1963-02-08T14:51:39Z", "ms": -217588101459.28638 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-02-07", "window": { "start": { "local": "1963-02-07T12:08:00-05:00", "utc": "1963-02-07T17:08:00Z", "ms": -217666319683.55026 }, "end": { "local": "1963-02-07T12:56:00-05:00", "utc": "1963-02-07T17:56:00Z", "ms": -217663439683.55026 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-02-08", "window": { "start": { "local": "1963-02-08T12:08:03-05:00", "utc": "1963-02-08T17:08:03Z", "ms": -217579916593.59283 }, "end": { "local": "1963-02-08T12:56:03-05:00", "utc": "1963-02-08T17:56:03Z", "ms": -217577036593.59283 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:24 on Thu 7 Feb to 09:52 on Fri 8 Feb.", "fact": "1963-02-07T14:23:40Z → 1963-02-08T14:51:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 7th, 12:08–12:56 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 0 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8185 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Toronto, 1963: Thursday 7 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": "1963-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-07", "confidence": "determinate" } ], "quote": "In Toronto, Māghī Pūrṇimā 1963 falls on Thursday 7 February. Pūrṇimā runs from 09:24 on Thu 7 Feb to 09:52 on Fri 8 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-02-11", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20608, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-02-11T13:59:16-05:00", "utc": "1963-02-11T18:59:16Z", "ms": -217314043679.28677 }, "end": { "local": "1963-02-12T16:10:37-05:00", "utc": "1963-02-12T21:10:37Z", "ms": -217219762560.2432 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-02-11T13:59:16-05:00", "utc": "1963-02-11T18:59:16Z", "ms": -217314043679.28677 }, "end": { "local": "1963-02-12T16:10:37-05:00", "utc": "1963-02-12T21:10:37Z", "ms": -217219762560.2432 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-02-11", "window": { "start": { "local": "1963-02-11T20:54:37-05:00", "utc": "1963-02-12T01:54:37Z", "ms": -217289122604.41852 }, "end": { "local": "1963-02-11T20:54:37-05:00", "utc": "1963-02-12T01:54:37Z", "ms": -217289122604.41852 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-02-12", "window": { "start": { "local": "1963-02-12T21:54:06-05:00", "utc": "1963-02-13T02:54:06Z", "ms": -217199154344.24997 }, "end": { "local": "1963-02-12T21:54:06-05:00", "utc": "1963-02-13T02:54:06Z", "ms": -217199154344.24997 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:59 on Mon 11 Feb to 16:11 on Tue 12 Feb.", "fact": "1963-02-11T18:59:16Z → 1963-02-12T21:10:37Z" }, { "step": "kaala", "text": "Moonrise is at 20:55 on the 11th and 21:54 on the 12th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 11th and is not on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20608 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Monday 11 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": "1963-02-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-11", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Monday 11 February. Caturthī runs from 13:59 on Mon 11 Feb to 16:11 on Tue 12 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-02-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-02-19", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11198, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-02-19T03:59:26-05:00", "utc": "1963-02-19T08:59:26Z", "ms": -216658834156.6387 }, "end": { "local": "1963-02-20T04:03:20-05:00", "utc": "1963-02-20T09:03:20Z", "ms": -216572200259.16727 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-02-19T03:59:26-05:00", "utc": "1963-02-19T08:59:26Z", "ms": -216658834156.6387 }, "end": { "local": "1963-02-20T04:03:20-05:00", "utc": "1963-02-20T09:03:20Z", "ms": -216572200259.16727 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-02-19", "window": { "start": { "local": "1963-02-19T07:11:30-05:00", "utc": "1963-02-19T12:11:30Z", "ms": -216647310405.63593 }, "end": { "local": "1963-02-19T07:11:30-05:00", "utc": "1963-02-19T12:11:30Z", "ms": -216647310405.63593 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-02-20", "window": { "start": { "local": "1963-02-20T07:09:58-05:00", "utc": "1963-02-20T12:09:58Z", "ms": -216561001804.69012 }, "end": { "local": "1963-02-20T07:09:58-05:00", "utc": "1963-02-20T12:09:58Z", "ms": -216561001804.69012 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-02-20", "start": { "local": "1963-02-20T13:36:02-05:00", "utc": "1963-02-20T18:36:02Z", "ms": -216537837602.63745 }, "end": { "local": "1963-02-20T15:44:44-05:00", "utc": "1963-02-20T20:44:44Z", "ms": -216530116201.95325 }, "basis": "aparahna", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-02-21T03:19:42-05:00", "utc": "1963-02-21T08:19:42Z", "ms": -216488417731.35956 }, "hari_vasara_end": { "local": "1963-02-20T09:52:25-05:00", "utc": "1963-02-20T14:52:25Z", "ms": -216551254627.21533 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:59 on Tue 19 Feb to 04:03 on Wed 20 Feb.", "fact": "1963-02-19T08:59:26Z → 1963-02-20T09:03:20Z" }, { "step": "kaala", "text": "Sunrise is at 07:11 on the 19th and 07:10 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 19th and is not on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11198 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Toronto, 1963: Tuesday 19 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": "1963-02-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-19", "confidence": "determinate" } ], "quote": "In Toronto, Vijayā Ekādaśī 1963 falls on Tuesday 19 February. Ekādaśī runs from 03:59 on Tue 19 Feb to 04:03 on Wed 20 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-02-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-21", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1359, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-02-22T01:51:21-05:00", "utc": "1963-02-22T06:51:21Z", "ms": -216407318953.18625 }, "end": { "local": "1963-02-22T23:44:03-05:00", "utc": "1963-02-23T04:44:03Z", "ms": -216328557484.84363 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-02-22T01:51:21-05:00", "utc": "1963-02-22T06:51:21Z", "ms": -216407318953.18625 }, "end": { "local": "1963-02-22T23:44:03-05:00", "utc": "1963-02-23T04:44:03Z", "ms": -216328557484.84363 } }, "kaala": "nishita", "days": [ { "local_date": "1963-02-21", "window": { "start": { "local": "1963-02-22T00:06:49-05:00", "utc": "1963-02-22T05:06:49Z", "ms": -216413591373.607 }, "end": { "local": "1963-02-22T00:54:49-05:00", "utc": "1963-02-22T05:54:49Z", "ms": -216410711373.607 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-02-22", "window": { "start": { "local": "1963-02-23T00:06:41-05:00", "utc": "1963-02-23T05:06:41Z", "ms": -216327198842.01837 }, "end": { "local": "1963-02-23T00:54:41-05:00", "utc": "1963-02-23T05:54:41Z", "ms": -216324318842.01837 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:51 on Fri 22 Feb to 23:44 on Fri 22 Feb.", "fact": "1963-02-22T06:51:21Z → 1963-02-23T04:44:03Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 21st, 00:07–00:55 on the 22nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: disputed → tithi-day · margin 1359 s" }, { "step": "ruling", "text": "Mahāśivarātri, Toronto, 1963: Thursday 21 February.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "1963-02-21", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-21", "confidence": "boundary" } ], "quote": "In Toronto, Mahāśivarātri 1963 falls on Thursday 21 February. Caturdaśī runs from 01:51 on Fri 22 Feb to 23:44 on Fri 22 Feb, and reaches niśītha on neither day.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/pradosha-vrata?on=1963-02-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22259, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-02-21T03:19:42-05:00", "utc": "1963-02-21T08:19:42Z", "ms": -216488417731.35956 }, "end": { "local": "1963-02-22T01:51:21-05:00", "utc": "1963-02-22T06:51:21Z", "ms": -216407318953.18625 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-02-21T03:19:42-05:00", "utc": "1963-02-21T08:19:42Z", "ms": -216488417731.35956 }, "end": { "local": "1963-02-22T01:51:21-05:00", "utc": "1963-02-22T06:51:21Z", "ms": -216407318953.18625 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-02-20", "window": { "start": { "local": "1963-02-20T17:53:25-05:00", "utc": "1963-02-20T22:53:25Z", "ms": -216522394801.269 }, "end": { "local": "1963-02-20T19:39:25-05:00", "utc": "1963-02-21T00:39:25Z", "ms": -216516034728.40546 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1963-02-21", "window": { "start": { "local": "1963-02-21T17:54:45-05:00", "utc": "1963-02-21T22:54:45Z", "ms": -216435915026.06583 }, "end": { "local": "1963-02-21T19:40:22-05:00", "utc": "1963-02-22T00:40:22Z", "ms": -216429578052.0768 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:20 on Thu 21 Feb to 01:51 on Fri 22 Feb.", "fact": "1963-02-21T08:19:42Z → 1963-02-22T06:51:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:53–19:39 on the 20th, 17:55–19:40 on the 21st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 106 minutes on the 20th and 106 of 106 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22259 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Thursday 21 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": "1963-02-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-21", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Thursday 21 February. Trayodaśī runs from 03:20 on Thu 21 Feb to 01:51 on Fri 22 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-02-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-02-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-02-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1741, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-02-26T11:37:53-05:00", "utc": "1963-02-26T16:37:53Z", "ms": -216026526891.72177 }, "end": { "local": "1963-02-27T08:29:58-05:00", "utc": "1963-02-27T13:29:58Z", "ms": -215951401503.4989 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-02-26T11:37:53-05:00", "utc": "1963-02-26T16:37:53Z", "ms": -216026526891.72177 }, "end": { "local": "1963-02-27T08:29:58-05:00", "utc": "1963-02-27T13:29:58Z", "ms": -215951401503.4989 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-02-26", "window": { "start": { "local": "1963-02-26T12:06:54-05:00", "utc": "1963-02-26T17:06:54Z", "ms": -216024785700.08447 }, "end": { "local": "1963-02-26T12:54:54-05:00", "utc": "1963-02-26T17:54:54Z", "ms": -216021905700.08447 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-02-27", "window": { "start": { "local": "1963-02-27T12:06:44-05:00", "utc": "1963-02-27T17:06:44Z", "ms": -215938395706.30008 }, "end": { "local": "1963-02-27T12:54:44-05:00", "utc": "1963-02-27T17:54:44Z", "ms": -215935515706.30008 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:38 on Tue 26 Feb to 08:30 on Wed 27 Feb.", "fact": "1963-02-26T16:37:53Z → 1963-02-27T13:29:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 26th, 12:07–12:55 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1741 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Tuesday 26 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": "1963-02-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-02-26", "confidence": "determinate" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Tuesday 26 February. Caturthī runs from 11:38 on Tue 26 Feb to 08:30 on Wed 27 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-02-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-03-05", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30476, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-03-04T22:13:46-05:00", "utc": "1963-03-05T03:13:46Z", "ms": -215469973639.82892 }, "end": { "local": "1963-03-05T22:19:07-05:00", "utc": "1963-03-06T03:19:07Z", "ms": -215383252823.21802 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-03-04T22:13:46-05:00", "utc": "1963-03-05T03:13:46Z", "ms": -215469973639.82892 }, "end": { "local": "1963-03-05T22:19:07-05:00", "utc": "1963-03-06T03:19:07Z", "ms": -215383252823.21802 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-03-05", "window": { "start": { "local": "1963-03-05T06:48:46-05:00", "utc": "1963-03-05T11:48:46Z", "ms": -215439073540.29596 }, "end": { "local": "1963-03-05T06:48:46-05:00", "utc": "1963-03-05T11:48:46Z", "ms": -215439073540.29596 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-03-06", "window": { "start": { "local": "1963-03-06T06:47:03-05:00", "utc": "1963-03-06T11:47:03Z", "ms": -215352776617.853 }, "end": { "local": "1963-03-06T06:47:03-05:00", "utc": "1963-03-06T11:47:03Z", "ms": -215352776617.853 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-03-06", "start": { "local": "1963-03-06T06:47:03-05:00", "utc": "1963-03-06T11:47:03Z", "ms": -215352776617.853 }, "end": { "local": "1963-03-06T09:03:58-05:00", "utc": "1963-03-06T14:03:58Z", "ms": -215344562241.2257 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-03-06T22:51:59-05:00", "utc": "1963-03-07T03:51:59Z", "ms": -215294881227.85995 }, "hari_vasara_end": { "local": "1963-03-06T04:27:20-05:00", "utc": "1963-03-06T09:27:20Z", "ms": -215361159924.3785 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:14 on Mon 4 Mar to 22:19 on Tue 5 Mar.", "fact": "1963-03-05T03:13:46Z → 1963-03-06T03:19:07Z" }, { "step": "kaala", "text": "Sunrise is at 06:49 on the 5th and 06:47 on the 6th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 5th and is not on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30476 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Toronto, 1963: Tuesday 5 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": "1963-03-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-05", "confidence": "determinate" } ], "quote": "In Toronto, Āmalakī Ekādaśī 1963 falls on Tuesday 5 March. Ekādaśī runs from 22:14 on Mon 4 Mar to 22:19 on Tue 5 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-03-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-03-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10794, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-03-06T22:51:59-05:00", "utc": "1963-03-07T03:51:59Z", "ms": -215294881227.85995 }, "end": { "local": "1963-03-07T23:49:28-05:00", "utc": "1963-03-08T04:49:28Z", "ms": -215205032163.821 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-03-06T22:51:59-05:00", "utc": "1963-03-07T03:51:59Z", "ms": -215294881227.85995 }, "end": { "local": "1963-03-07T23:49:28-05:00", "utc": "1963-03-08T04:49:28Z", "ms": -215205032163.821 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-03-06", "window": { "start": { "local": "1963-03-06T18:11:35-05:00", "utc": "1963-03-06T23:11:35Z", "ms": -215311704734.71655 }, "end": { "local": "1963-03-06T19:52:05-05:00", "utc": "1963-03-07T00:52:05Z", "ms": -215305674806.09198 } }, "covered_min": 0, "window_min": 100, "qualifies": false }, { "local_date": "1963-03-07", "window": { "start": { "local": "1963-03-07T18:12:51-05:00", "utc": "1963-03-07T23:12:51Z", "ms": -215225229155.43088 }, "end": { "local": "1963-03-07T19:52:57-05:00", "utc": "1963-03-08T00:52:57Z", "ms": -215219223196.22443 } }, "covered_min": 100, "window_min": 100, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:52 on Wed 6 Mar to 23:49 on Thu 7 Mar.", "fact": "1963-03-07T03:51:59Z → 1963-03-08T04:49:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:12–19:52 on the 6th, 18:13–19:53 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 100 minutes on the 6th and 100 of 100 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10794 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Thursday 7 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-07", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Thursday 7 March. Trayodaśī runs from 22:52 on Wed 6 Mar to 23:49 on Thu 7 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-03-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24896, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-03-09T01:09:02-05:00", "utc": "1963-03-09T06:09:02Z", "ms": -215113858280.25327 }, "end": { "local": "1963-03-10T02:48:34-05:00", "utc": "1963-03-10T07:48:34Z", "ms": -215021485970.86963 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-03-09T01:09:02-05:00", "utc": "1963-03-09T06:09:02Z", "ms": -215113858280.25327 }, "end": { "local": "1963-03-10T02:48:34-05:00", "utc": "1963-03-10T07:48:34Z", "ms": -215021485970.86963 } }, "kaala": "sayahna", "days": [ { "local_date": "1963-03-08", "window": { "start": { "local": "1963-03-08T15:56:00-05:00", "utc": "1963-03-08T20:56:00Z", "ms": -215147039976.32257 }, "end": { "local": "1963-03-08T18:14:06-05:00", "utc": "1963-03-08T23:14:06Z", "ms": -215138753855.0576 } }, "covered_min": 0, "window_min": 138, "qualifies": false }, { "local_date": "1963-03-09", "window": { "start": { "local": "1963-03-09T15:56:39-05:00", "utc": "1963-03-09T20:56:39Z", "ms": -215060600889.41312 }, "end": { "local": "1963-03-09T18:15:21-05:00", "utc": "1963-03-09T23:15:21Z", "ms": -215052278822.5651 } }, "covered_min": 139, "window_min": 139, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:09 on Sat 9 Mar to 02:49 on Sun 10 Mar.", "fact": "1963-03-09T06:09:02Z → 1963-03-10T07:48:34Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:56–18:14 on the 8th, 15:57–18:15 on the 9th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 138 minutes on the 8th and 139 of 139 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24896 s" }, { "step": "ruling", "text": "Holikā Dahana, Toronto, 1963: Saturday 9 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "holika-dahana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana." } ], "not_evaluated": "The hour the row gives for the rite (\"it should be observed on second half of purnima at night\") is not tested: sāyāhna alone settles the day.", "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-09", "confidence": "determinate" } ], "quote": "In Toronto, Holikā Dahana 1963 falls on Saturday 9 March. Pūrṇimā runs from 01:09 on Sat 9 Mar to 02:49 on Sun 10 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24896, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-03-09T01:09:02-05:00", "utc": "1963-03-09T06:09:02Z", "ms": -215113858280.25327 }, "end": { "local": "1963-03-10T02:48:34-05:00", "utc": "1963-03-10T07:48:34Z", "ms": -215021485970.86963 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1963-03-09T01:09:02-05:00", "utc": "1963-03-09T06:09:02Z", "ms": -215113858280.25327 }, "end": { "local": "1963-03-10T02:48:34-05:00", "utc": "1963-03-10T07:48:34Z", "ms": -215021485970.86963 } }, "kaala": "sayahna", "days": [ { "local_date": "1963-03-08", "window": { "start": { "local": "1963-03-08T15:56:00-05:00", "utc": "1963-03-08T20:56:00Z", "ms": -215147039976.32257 }, "end": { "local": "1963-03-08T18:14:06-05:00", "utc": "1963-03-08T23:14:06Z", "ms": -215138753855.0576 } }, "covered_min": 0, "window_min": 138, "qualifies": false }, { "local_date": "1963-03-09", "window": { "start": { "local": "1963-03-09T15:56:39-05:00", "utc": "1963-03-09T20:56:39Z", "ms": -215060600889.41312 }, "end": { "local": "1963-03-09T18:15:21-05:00", "utc": "1963-03-09T23:15:21Z", "ms": -215052278822.5651 } }, "covered_min": 139, "window_min": 139, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1963-03-09", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:09 on Sat 9 Mar to 02:49 on Sun 10 Mar.", "fact": "1963-03-09T06:09:02Z → 1963-03-10T07:48:34Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:56–18:14 on the 8th, 15:57–18:15 on the 9th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 138 minutes on the 8th and 139 of 139 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24896 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Saturday 9 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Toronto, 1963: Sunday 10 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "holi", "follows": { "festival": "holika-dahana", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana." } ], "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-10", "confidence": "determinate" } ], "quote": "In Toronto, Holī 1963 falls on Sunday 10 March. It is kept the day after Holikā Dahana, which falls on Saturday 9 March. Pūrṇimā runs from 01:09 on Sat 9 Mar to 02:49 on Sun 10 Mar and covers all of sāyāhna on the 9th.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6734, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1963-03-10T02:48:34-05:00", "utc": "1963-03-10T07:48:34Z", "ms": -215021485970.86963 }, "end": { "local": "1963-03-11T04:46:06-05:00", "utc": "1963-03-11T09:46:06Z", "ms": -214928034057.31876 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-10T02:48:34-05:00", "utc": "1963-03-10T07:48:34Z", "ms": -215021485970.86963 }, "end": { "local": "1963-03-11T04:46:06-05:00", "utc": "1963-03-11T09:46:06Z", "ms": -214928034057.31876 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-03-10", "window": { "start": { "local": "1963-03-10T06:40:06-05:00", "utc": "1963-03-10T11:40:06Z", "ms": -215007594321.595 }, "end": { "local": "1963-03-10T06:40:06-05:00", "utc": "1963-03-10T11:40:06Z", "ms": -215007594321.595 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-03-11", "window": { "start": { "local": "1963-03-11T06:38:20-05:00", "utc": "1963-03-11T11:38:20Z", "ms": -214921299921.5094 }, "end": { "local": "1963-03-11T06:38:20-05:00", "utc": "1963-03-11T11:38:20Z", "ms": -214921299921.5094 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:49 on Sun 10 Mar to 04:46 on Mon 11 Mar.", "fact": "1963-03-10T07:48:34Z → 1963-03-11T09:46:06Z" }, { "step": "kaala", "text": "Sunrise is at 06:40 on the 10th and 06:38 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 10th and is not on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6734 s" }, { "step": "ruling", "text": "Vasantotsava, Toronto, 1963: Sunday 10 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasantotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "sunrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-10", "confidence": "determinate" } ], "quote": "In Toronto, Vasantotsava 1963 falls on Sunday 10 March. Pratipadā runs from 02:49 on Sun 10 Mar to 04:46 on Mon 11 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-03-13", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38872, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-03-13T09:23:47-05:00", "utc": "1963-03-13T14:23:47Z", "ms": -214738573457.82602 }, "end": { "local": "1963-03-14T11:54:07-05:00", "utc": "1963-03-14T16:54:07Z", "ms": -214643152800.74896 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-13T09:23:47-05:00", "utc": "1963-03-13T14:23:47Z", "ms": -214738573457.82602 }, "end": { "local": "1963-03-14T11:54:07-05:00", "utc": "1963-03-14T16:54:07Z", "ms": -214643152800.74896 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-03-13", "window": { "start": { "local": "1963-03-13T21:42:42-05:00", "utc": "1963-03-14T02:42:42Z", "ms": -214694237866.63602 }, "end": { "local": "1963-03-13T21:42:42-05:00", "utc": "1963-03-14T02:42:42Z", "ms": -214694237866.63602 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-03-14", "window": { "start": { "local": "1963-03-14T22:41:59-05:00", "utc": "1963-03-15T03:41:59Z", "ms": -214604280554.26807 }, "end": { "local": "1963-03-14T22:41:59-05:00", "utc": "1963-03-15T03:41:59Z", "ms": -214604280554.26807 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:24 on Wed 13 Mar to 11:54 on Thu 14 Mar.", "fact": "1963-03-13T14:23:47Z → 1963-03-14T16:54:07Z" }, { "step": "kaala", "text": "Moonrise is at 21:43 on the 13th and 22:42 on the 14th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38872 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Wednesday 13 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": "1963-03-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-13", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Wednesday 13 March. Caturthī runs from 09:24 on Wed 13 Mar to 11:54 on Thu 14 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-03-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20113, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-03-17T18:25:39-05:00", "utc": "1963-03-17T23:25:39Z", "ms": -214360461209.93906 }, "end": { "local": "1963-03-18T19:39:16-05:00", "utc": "1963-03-19T00:39:16Z", "ms": -214269643880.51398 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-17T18:25:39-05:00", "utc": "1963-03-17T23:25:39Z", "ms": -214360461209.93906 }, "end": { "local": "1963-03-18T19:39:16-05:00", "utc": "1963-03-19T00:39:16Z", "ms": -214269643880.51398 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-03-17", "window": { "start": { "local": "1963-03-17T12:02:26-05:00", "utc": "1963-03-17T17:02:26Z", "ms": -214383453769.51068 }, "end": { "local": "1963-03-17T12:50:26-05:00", "utc": "1963-03-17T17:50:26Z", "ms": -214380573769.51068 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-03-18", "window": { "start": { "local": "1963-03-18T12:02:09-05:00", "utc": "1963-03-18T17:02:09Z", "ms": -214297071045.26624 }, "end": { "local": "1963-03-18T12:50:09-05:00", "utc": "1963-03-18T17:50:09Z", "ms": -214294191045.26624 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:26 on Sun 17 Mar to 19:39 on Mon 18 Mar.", "fact": "1963-03-17T23:25:39Z → 1963-03-19T00:39:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 17th, 12:02–12:50 on the 18th.", "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 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20113 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Toronto, 1963: Monday 18 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": "1963-03-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-18", "confidence": "determinate" } ], "quote": "In Toronto, Śītalāṣṭamī 1963 falls on Monday 18 March. Aṣṭamī runs from 18:26 on Sun 17 Mar to 19:39 on Mon 18 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-03-21", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37970, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-03-20T19:47:37-05:00", "utc": "1963-03-21T00:47:37Z", "ms": -214096342628.6061 }, "end": { "local": "1963-03-21T18:36:20-05:00", "utc": "1963-03-21T23:36:20Z", "ms": -214014219692.1195 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-20T19:47:37-05:00", "utc": "1963-03-21T00:47:37Z", "ms": -214096342628.6061 }, "end": { "local": "1963-03-21T18:36:20-05:00", "utc": "1963-03-21T23:36:20Z", "ms": -214014219692.1195 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-03-21", "window": { "start": { "local": "1963-03-21T06:20:27-05:00", "utc": "1963-03-21T11:20:27Z", "ms": -214058372560.897 }, "end": { "local": "1963-03-21T06:20:27-05:00", "utc": "1963-03-21T11:20:27Z", "ms": -214058372560.897 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-03-22", "window": { "start": { "local": "1963-03-22T06:18:39-05:00", "utc": "1963-03-22T11:18:39Z", "ms": -213972080786.99954 }, "end": { "local": "1963-03-22T06:18:39-05:00", "utc": "1963-03-22T11:18:39Z", "ms": -213972080786.99954 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-03-22", "start": { "local": "1963-03-22T06:18:39-05:00", "utc": "1963-03-22T11:18:39Z", "ms": -213972080786.99954 }, "end": { "local": "1963-03-22T08:45:11-05:00", "utc": "1963-03-22T13:45:11Z", "ms": -213963289100.64908 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-03-22T16:37:28-05:00", "utc": "1963-03-22T21:37:28Z", "ms": -213934951692.44376 }, "hari_vasara_end": { "local": "1963-03-22T00:06:37-05:00", "utc": "1963-03-22T05:06:37Z", "ms": -213994402692.20056 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:48 on Wed 20 Mar to 18:36 on Thu 21 Mar.", "fact": "1963-03-21T00:47:37Z → 1963-03-21T23:36:20Z" }, { "step": "kaala", "text": "Sunrise is at 06:20 on the 21st and 06:19 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 37970 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Toronto, 1963: Thursday 21 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": "1963-03-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-21", "confidence": "determinate" } ], "quote": "In Toronto, Pāpamocanī Ekādaśī 1963 falls on Thursday 21 March. Ekādaśī runs from 19:48 on Wed 20 Mar to 18:36 on Thu 21 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-03-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-03-22", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6829, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-03-22T16:37:28-05:00", "utc": "1963-03-22T21:37:28Z", "ms": -213934951692.44376 }, "end": { "local": "1963-03-23T13:57:20-05:00", "utc": "1963-03-23T18:57:20Z", "ms": -213858160055.6756 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-22T16:37:28-05:00", "utc": "1963-03-22T21:37:28Z", "ms": -213934951692.44376 }, "end": { "local": "1963-03-23T13:57:20-05:00", "utc": "1963-03-23T18:57:20Z", "ms": -213858160055.6756 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-03-22", "window": { "start": { "local": "1963-03-22T18:31:18-05:00", "utc": "1963-03-22T23:31:18Z", "ms": -213928122355.24728 }, "end": { "local": "1963-03-22T20:05:22-05:00", "utc": "1963-03-23T01:05:22Z", "ms": -213922477916.72604 } }, "covered_min": 94, "window_min": 94, "qualifies": true }, { "local_date": "1963-03-23", "window": { "start": { "local": "1963-03-23T18:32:30-05:00", "utc": "1963-03-23T23:32:30Z", "ms": -213841649861.2274 }, "end": { "local": "1963-03-23T20:06:10-05:00", "utc": "1963-03-24T01:06:10Z", "ms": -213836029529.16367 } }, "covered_min": 0, "window_min": 94, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:37 on Fri 22 Mar to 13:57 on Sat 23 Mar.", "fact": "1963-03-22T21:37:28Z → 1963-03-23T18:57:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:31–20:05 on the 22nd, 18:33–20:06 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 94 of 94 minutes on the 22nd and 0 of 94 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 6829 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Friday 22 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-22", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Friday 22 March. Trayodaśī runs from 16:37 on Fri 22 Mar to 13:57 on Sat 23 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-03-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-03-23", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35811, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-03-23T13:57:20-05:00", "utc": "1963-03-23T18:57:20Z", "ms": -213858160055.6756 }, "end": { "local": "1963-03-24T10:44:38-05:00", "utc": "1963-03-24T15:44:38Z", "ms": -213783322150.45624 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-23T13:57:20-05:00", "utc": "1963-03-23T18:57:20Z", "ms": -213858160055.6756 }, "end": { "local": "1963-03-24T10:44:38-05:00", "utc": "1963-03-24T15:44:38Z", "ms": -213783322150.45624 } }, "kaala": "nishita", "days": [ { "local_date": "1963-03-22", "window": { "start": { "local": "1963-03-23T00:00:04-05:00", "utc": "1963-03-23T05:00:04Z", "ms": -213908395710.7926 }, "end": { "local": "1963-03-23T00:48:04-05:00", "utc": "1963-03-23T05:48:04Z", "ms": -213905515710.7926 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-03-23", "window": { "start": { "local": "1963-03-23T23:59:46-05:00", "utc": "1963-03-24T04:59:46Z", "ms": -213822013615.98846 }, "end": { "local": "1963-03-24T00:47:46-05:00", "utc": "1963-03-24T05:47:46Z", "ms": -213819133615.98846 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:57 on Sat 23 Mar to 10:45 on Sun 24 Mar.", "fact": "1963-03-23T18:57:20Z → 1963-03-24T15:44:38Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:00–00:48 on the 22nd, 00:00–00:48 on the 23rd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35811 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Saturday 23 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-23", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Saturday 23 March. Caturdaśī runs from 13:57 on Sat 23 Mar to 10:45 on Sun 24 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-03-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17426, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1963-03-25T07:09:38-05:00", "utc": "1963-03-25T12:09:38Z", "ms": -213709821834.232 }, "end": { "local": "1963-03-26T03:23:28-05:00", "utc": "1963-03-26T08:23:28Z", "ms": -213636992341.05646 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-25T07:09:38-05:00", "utc": "1963-03-25T12:09:38Z", "ms": -213709821834.232 }, "end": { "local": "1963-03-26T03:23:28-05:00", "utc": "1963-03-26T08:23:28Z", "ms": -213636992341.05646 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-03-25", "window": { "start": { "local": "1963-03-25T12:00:05-05:00", "utc": "1963-03-25T17:00:05Z", "ms": -213692395443.80945 }, "end": { "local": "1963-03-25T12:48:05-05:00", "utc": "1963-03-25T17:48:05Z", "ms": -213689515443.80945 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-03-26", "window": { "start": { "local": "1963-03-26T11:59:46-05:00", "utc": "1963-03-26T16:59:46Z", "ms": -213606013500.6647 }, "end": { "local": "1963-03-26T12:47:46-05:00", "utc": "1963-03-26T17:47:46Z", "ms": -213603133500.6647 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:10 on Mon 25 Mar to 03:23 on Tue 26 Mar.", "fact": "1963-03-25T12:09:38Z → 1963-03-26T08:23:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 25th, 12:00–12:48 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17426 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Toronto, 1963: Monday 25 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-25", "confidence": "determinate" } ], "quote": "In Toronto, Navarātrārambha (Caitra) (Chaitra Navratri) 1963 falls on Monday 25 March. Pratipadā runs from 07:10 on Mon 25 Mar to 03:23 on Tue 26 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26118, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1963-03-26T23:37:28-05:00", "utc": "1963-03-27T04:37:28Z", "ms": -213564151590.10245 }, "end": { "local": "1963-03-27T20:02:47-05:00", "utc": "1963-03-28T01:02:47Z", "ms": -213490633232.77277 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-26T23:37:28-05:00", "utc": "1963-03-27T04:37:28Z", "ms": -213564151590.10245 }, "end": { "local": "1963-03-27T20:02:47-05:00", "utc": "1963-03-28T01:02:47Z", "ms": -213490633232.77277 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-03-26", "window": { "start": { "local": "1963-03-26T11:59:46-05:00", "utc": "1963-03-26T16:59:46Z", "ms": -213606013500.6647 }, "end": { "local": "1963-03-26T12:47:46-05:00", "utc": "1963-03-26T17:47:46Z", "ms": -213603133500.6647 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-03-27", "window": { "start": { "local": "1963-03-27T11:59:28-05:00", "utc": "1963-03-27T16:59:28Z", "ms": -213519631582.21237 }, "end": { "local": "1963-03-27T12:47:28-05:00", "utc": "1963-03-27T17:47:28Z", "ms": -213516751582.21237 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 23:37 on Tue 26 Mar to 20:03 on Wed 27 Mar.", "fact": "1963-03-27T04:37:28Z → 1963-03-28T01:02:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 26th, 11:59–12:47 on the 27th.", "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 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: unstated → only-day · margin 26118 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Toronto, 1963: Wednesday 27 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-27", "confidence": "determinate" } ], "quote": "In Toronto, Gaurī Tṛtīyā (Gangaur) 1963 falls on Wednesday 27 March. Tṛtīyā runs from 23:37 on Tue 26 Mar to 20:03 on Wed 27 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26118, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1963-03-26T23:37:28-05:00", "utc": "1963-03-27T04:37:28Z", "ms": -213564151590.10245 }, "end": { "local": "1963-03-27T20:02:47-05:00", "utc": "1963-03-28T01:02:47Z", "ms": -213490633232.77277 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-26T23:37:28-05:00", "utc": "1963-03-27T04:37:28Z", "ms": -213564151590.10245 }, "end": { "local": "1963-03-27T20:02:47-05:00", "utc": "1963-03-28T01:02:47Z", "ms": -213490633232.77277 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-03-26", "window": { "start": { "local": "1963-03-26T11:59:46-05:00", "utc": "1963-03-26T16:59:46Z", "ms": -213606013500.6647 }, "end": { "local": "1963-03-26T12:47:46-05:00", "utc": "1963-03-26T17:47:46Z", "ms": -213603133500.6647 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-03-27", "window": { "start": { "local": "1963-03-27T11:59:28-05:00", "utc": "1963-03-27T16:59:28Z", "ms": -213519631582.21237 }, "end": { "local": "1963-03-27T12:47:28-05:00", "utc": "1963-03-27T17:47:28Z", "ms": -213516751582.21237 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 23:37 on Tue 26 Mar to 20:03 on Wed 27 Mar.", "fact": "1963-03-27T04:37:28Z → 1963-03-28T01:02:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 26th, 11:59–12:47 on the 27th.", "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 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 26118 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Toronto, 1963: Wednesday 27 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-27", "confidence": "determinate" } ], "quote": "In Toronto, Saubhāgya Śayana Vrata 1963 falls on Wednesday 27 March. Tṛtīyā runs from 23:37 on Tue 26 Mar to 20:03 on Wed 27 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-03-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14552, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-03-27T20:02:47-05:00", "utc": "1963-03-28T01:02:47Z", "ms": -213490633232.77277 }, "end": { "local": "1963-03-28T16:49:42-05:00", "utc": "1963-03-28T21:49:42Z", "ms": -213415817626.1196 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-27T20:02:47-05:00", "utc": "1963-03-28T01:02:47Z", "ms": -213490633232.77277 }, "end": { "local": "1963-03-28T16:49:42-05:00", "utc": "1963-03-28T21:49:42Z", "ms": -213415817626.1196 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-03-27", "window": { "start": { "local": "1963-03-27T11:59:28-05:00", "utc": "1963-03-27T16:59:28Z", "ms": -213519631582.21237 }, "end": { "local": "1963-03-27T12:47:28-05:00", "utc": "1963-03-27T17:47:28Z", "ms": -213516751582.21237 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-03-28", "window": { "start": { "local": "1963-03-28T11:59:10-05:00", "utc": "1963-03-28T16:59:10Z", "ms": -213433249673.14624 }, "end": { "local": "1963-03-28T12:47:10-05:00", "utc": "1963-03-28T17:47:10Z", "ms": -213430369673.14624 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:03 on Wed 27 Mar to 16:50 on Thu 28 Mar.", "fact": "1963-03-28T01:02:47Z → 1963-03-28T21:49:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 27th, 11:59–12:47 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14552 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Thursday 28 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-28", "confidence": "determinate" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Thursday 28 March. Caturthī runs from 20:03 on Wed 27 Mar to 16:50 on Thu 28 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-03-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4822, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1963-03-28T16:49:42-05:00", "utc": "1963-03-28T21:49:42Z", "ms": -213415817626.1196 }, "end": { "local": "1963-03-29T14:07:14-05:00", "utc": "1963-03-29T19:07:14Z", "ms": -213339165815.3554 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-28T16:49:42-05:00", "utc": "1963-03-28T21:49:42Z", "ms": -213415817626.1196 }, "end": { "local": "1963-03-29T14:07:14-05:00", "utc": "1963-03-29T19:07:14Z", "ms": -213339165815.3554 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-03-28", "window": { "start": { "local": "1963-03-28T11:59:10-05:00", "utc": "1963-03-28T16:59:10Z", "ms": -213433249673.14624 }, "end": { "local": "1963-03-28T12:47:10-05:00", "utc": "1963-03-28T17:47:10Z", "ms": -213430369673.14624 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-03-29", "window": { "start": { "local": "1963-03-29T11:58:52-05:00", "utc": "1963-03-29T16:58:52Z", "ms": -213346867757.3058 }, "end": { "local": "1963-03-29T12:46:52-05:00", "utc": "1963-03-29T17:46:52Z", "ms": -213343987757.3058 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 16:50 on Thu 28 Mar to 14:07 on Fri 29 Mar.", "fact": "1963-03-28T21:49:42Z → 1963-03-29T19:07:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 28th, 11:59–12:47 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4822 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Toronto, 1963: Friday 29 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-29", "confidence": "determinate" } ], "quote": "In Toronto, Lakṣmī Pañcamī 1963 falls on Friday 29 March. Pañcamī runs from 16:50 on Thu 28 Mar to 14:07 on Fri 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4719, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-03-31T10:39:37-05:00", "utc": "1963-03-31T15:39:37Z", "ms": -213178822983.05185 }, "end": { "local": "1963-04-01T10:00:23-05:00", "utc": "1963-04-01T15:00:23Z", "ms": -213094777174.76443 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-03-31T10:39:37-05:00", "utc": "1963-03-31T15:39:37Z", "ms": -213178822983.05185 }, "end": { "local": "1963-04-01T10:00:23-05:00", "utc": "1963-04-01T15:00:23Z", "ms": -213094777174.76443 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-03-31", "window": { "start": { "local": "1963-03-31T11:58:16-05:00", "utc": "1963-03-31T16:58:16Z", "ms": -213174103835.1865 }, "end": { "local": "1963-03-31T12:46:16-05:00", "utc": "1963-03-31T17:46:16Z", "ms": -213171223835.1865 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-04-01", "window": { "start": { "local": "1963-04-01T11:57:58-05:00", "utc": "1963-04-01T16:57:58Z", "ms": -213087721791.2229 }, "end": { "local": "1963-04-01T12:45:58-05:00", "utc": "1963-04-01T17:45:58Z", "ms": -213084841791.2229 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:40 on Sun 31 Mar to 10:00 on Mon 1 Apr.", "fact": "1963-03-31T15:39:37Z → 1963-04-01T15:00:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 31st, 11:58–12:46 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4719 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Toronto, 1963: Sunday 31 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": "1963-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-03-31", "confidence": "determinate" } ], "quote": "In Toronto, Bhavānī Utpatti 1963 falls on Sunday 31 March. Aṣṭamī runs from 10:40 on Sun 31 Mar to 10:00 on Mon 1 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6876, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1963-04-01T10:00:23-05:00", "utc": "1963-04-01T15:00:23Z", "ms": -213094777174.76443 }, "end": { "local": "1963-04-02T10:03:04-05:00", "utc": "1963-04-02T15:03:04Z", "ms": -213008215734.6366 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-04-01T10:00:23-05:00", "utc": "1963-04-01T15:00:23Z", "ms": -213094777174.76443 }, "end": { "local": "1963-04-02T10:03:04-05:00", "utc": "1963-04-02T15:03:04Z", "ms": -213008215734.6366 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-04-01", "window": { "start": { "local": "1963-04-01T11:57:58-05:00", "utc": "1963-04-01T16:57:58Z", "ms": -213087721791.2229 }, "end": { "local": "1963-04-01T12:45:58-05:00", "utc": "1963-04-01T17:45:58Z", "ms": -213084841791.2229 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-04-02", "window": { "start": { "local": "1963-04-02T11:57:40-05:00", "utc": "1963-04-02T16:57:40Z", "ms": -213001339665.47723 }, "end": { "local": "1963-04-02T12:45:40-05:00", "utc": "1963-04-02T17:45:40Z", "ms": -212998459665.47723 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 10:00 on Mon 1 Apr to 10:03 on Tue 2 Apr.", "fact": "1963-04-01T15:00:23Z → 1963-04-02T15:03:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 1st, 11:58–12:46 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 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: unstated → only-day · margin 6876 s" }, { "step": "ruling", "text": "Rāma Navamī, Toronto, 1963: Monday 1 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rama-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti." } ], "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-01", "confidence": "determinate" } ], "quote": "In Toronto, Rāma Navamī 1963 falls on Monday 1 April. Navamī runs from 10:00 on Mon 1 Apr to 10:03 on Tue 2 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-04-04", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17182, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-04-03T10:43:26-05:00", "utc": "1963-04-03T15:43:26Z", "ms": -212919393776.95474 }, "end": { "local": "1963-04-04T11:55:28-05:00", "utc": "1963-04-04T16:55:28Z", "ms": -212828671641.51132 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-04-03T10:43:26-05:00", "utc": "1963-04-03T15:43:26Z", "ms": -212919393776.95474 }, "end": { "local": "1963-04-04T11:55:28-05:00", "utc": "1963-04-04T16:55:28Z", "ms": -212828671641.51132 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-04-03", "window": { "start": { "local": "1963-04-03T05:57:04-05:00", "utc": "1963-04-03T10:57:04Z", "ms": -212936575707.73303 }, "end": { "local": "1963-04-03T05:57:04-05:00", "utc": "1963-04-03T10:57:04Z", "ms": -212936575707.73303 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-04-04", "window": { "start": { "local": "1963-04-04T05:55:18-05:00", "utc": "1963-04-04T10:55:18Z", "ms": -212850282415.33212 }, "end": { "local": "1963-04-04T05:55:18-05:00", "utc": "1963-04-04T10:55:18Z", "ms": -212850282415.33212 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-04-05", "start": { "local": "1963-04-05T05:53:31-05:00", "utc": "1963-04-05T10:53:31Z", "ms": -212763988790.57098 }, "end": { "local": "1963-04-05T08:28:26-05:00", "utc": "1963-04-05T13:28:26Z", "ms": -212754694310.37424 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-04-05T13:32:33-05:00", "utc": "1963-04-05T18:32:33Z", "ms": -212736447140.72552 }, "hari_vasara_end": { "local": "1963-04-04T18:19:44-05:00", "utc": "1963-04-04T23:19:44Z", "ms": -212805615516.31488 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:43 on Wed 3 Apr to 11:55 on Thu 4 Apr.", "fact": "1963-04-03T15:43:26Z → 1963-04-04T16:55:28Z" }, { "step": "kaala", "text": "Sunrise is at 05:57 on the 3rd and 05:55 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17182 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Toronto, 1963: Thursday 4 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-04", "confidence": "determinate" } ], "quote": "In Toronto, Kāmadā Ekādaśī 1963 falls on Thursday 4 April. Ekādaśī runs from 10:43 on Wed 3 Apr to 11:55 on Thu 4 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-04-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-04-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12049, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-04-05T13:32:33-05:00", "utc": "1963-04-05T18:32:33Z", "ms": -212736447140.72552 }, "end": { "local": "1963-04-06T15:28:26-05:00", "utc": "1963-04-06T20:28:26Z", "ms": -212643094356.7477 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-04-05T13:32:33-05:00", "utc": "1963-04-05T18:32:33Z", "ms": -212736447140.72552 }, "end": { "local": "1963-04-06T15:28:26-05:00", "utc": "1963-04-06T20:28:26Z", "ms": -212643094356.7477 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-04-05", "window": { "start": { "local": "1963-04-05T18:48:04-05:00", "utc": "1963-04-05T23:48:04Z", "ms": -212717516389.5872 }, "end": { "local": "1963-04-05T20:16:33-05:00", "utc": "1963-04-06T01:16:33Z", "ms": -212712206844.394 } }, "covered_min": 88, "window_min": 88, "qualifies": true }, { "local_date": "1963-04-06", "window": { "start": { "local": "1963-04-06T18:49:15-05:00", "utc": "1963-04-06T23:49:15Z", "ms": -212631045056.65366 }, "end": { "local": "1963-04-06T20:17:21-05:00", "utc": "1963-04-07T01:17:21Z", "ms": -212625759104.1219 } }, "covered_min": 0, "window_min": 88, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:33 on Fri 5 Apr to 15:28 on Sat 6 Apr.", "fact": "1963-04-05T18:32:33Z → 1963-04-06T20:28:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:48–20:17 on the 5th, 18:49–20:17 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 88 of 88 minutes on the 5th and 0 of 88 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12049 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Friday 5 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-05", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Friday 5 April. Trayodaśī runs from 13:33 on Fri 5 Apr to 15:28 on Sat 6 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-04-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2865, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-04-05T13:32:33-05:00", "utc": "1963-04-05T18:32:33Z", "ms": -212736447140.72552 }, "end": { "local": "1963-04-06T15:28:26-05:00", "utc": "1963-04-06T20:28:26Z", "ms": -212643094356.7477 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-04-05T13:32:33-05:00", "utc": "1963-04-05T18:32:33Z", "ms": -212736447140.72552 }, "end": { "local": "1963-04-06T15:28:26-05:00", "utc": "1963-04-06T20:28:26Z", "ms": -212643094356.7477 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-04-05", "window": { "start": { "local": "1963-04-05T11:56:47-05:00", "utc": "1963-04-05T16:56:47Z", "ms": -212742192590.0791 }, "end": { "local": "1963-04-05T12:44:47-05:00", "utc": "1963-04-05T17:44:47Z", "ms": -212739312590.0791 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-04-06", "window": { "start": { "local": "1963-04-06T11:56:30-05:00", "utc": "1963-04-06T16:56:30Z", "ms": -212655809928.646 }, "end": { "local": "1963-04-06T12:44:30-05:00", "utc": "1963-04-06T17:44:30Z", "ms": -212652929928.646 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:33 on Fri 5 Apr to 15:28 on Sat 6 Apr.", "fact": "1963-04-05T18:32:33Z → 1963-04-06T20:28:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 5th, 11:57–12:45 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2865 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Toronto, 1963: Saturday 6 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ananga-trayodashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-05", "confidence": "determinate" } ], "quote": "In Toronto, Anaṅga Trayodaśī 1963 falls on Saturday 6 April. Trayodaśī runs from 13:33 on Fri 5 Apr to 15:28 on Sat 6 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9836, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-04-06T15:28:26-05:00", "utc": "1963-04-06T20:28:26Z", "ms": -212643094356.7477 }, "end": { "local": "1963-04-07T17:37:52-05:00", "utc": "1963-04-07T22:37:52Z", "ms": -212548927536.6803 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-04-06T15:28:26-05:00", "utc": "1963-04-06T20:28:26Z", "ms": -212643094356.7477 }, "end": { "local": "1963-04-07T17:37:52-05:00", "utc": "1963-04-07T22:37:52Z", "ms": -212548927536.6803 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-04-06", "window": { "start": { "local": "1963-04-06T11:56:30-05:00", "utc": "1963-04-06T16:56:30Z", "ms": -212655809928.646 }, "end": { "local": "1963-04-06T12:44:30-05:00", "utc": "1963-04-06T17:44:30Z", "ms": -212652929928.646 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-04-07", "window": { "start": { "local": "1963-04-07T11:56:13-05:00", "utc": "1963-04-07T16:56:13Z", "ms": -212569427080.52365 }, "end": { "local": "1963-04-07T12:44:13-05:00", "utc": "1963-04-07T17:44:13Z", "ms": -212566547080.52365 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:28 on Sat 6 Apr to 17:38 on Sun 7 Apr.", "fact": "1963-04-06T20:28:26Z → 1963-04-07T22:37:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 6th, 11:56–12:44 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9836 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Toronto, 1963: Sunday 7 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vishnu-damanaka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-07", "confidence": "determinate" } ], "quote": "In Toronto, Viṣṇudamanaka Caturdaśī 1963 falls on Sunday 7 April. Caturdaśī runs from 15:28 on Sat 6 Apr to 17:38 on Sun 7 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17620, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-04-07T17:37:52-05:00", "utc": "1963-04-07T22:37:52Z", "ms": -212548927536.6803 }, "end": { "local": "1963-04-08T19:56:41-05:00", "utc": "1963-04-09T00:56:41Z", "ms": -212454198690.75565 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1963-04-07T17:37:52-05:00", "utc": "1963-04-07T22:37:52Z", "ms": -212548927536.6803 }, "end": { "local": "1963-04-08T19:56:41-05:00", "utc": "1963-04-09T00:56:41Z", "ms": -212454198690.75565 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-04-07", "window": { "start": { "local": "1963-04-07T11:56:13-05:00", "utc": "1963-04-07T16:56:13Z", "ms": -212569427080.52365 }, "end": { "local": "1963-04-07T12:44:13-05:00", "utc": "1963-04-07T17:44:13Z", "ms": -212566547080.52365 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-04-08", "window": { "start": { "local": "1963-04-08T11:55:56-05:00", "utc": "1963-04-08T16:55:56Z", "ms": -212483044024.77063 }, "end": { "local": "1963-04-08T12:43:56-05:00", "utc": "1963-04-08T17:43:56Z", "ms": -212480164024.77063 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:38 on Sun 7 Apr to 19:57 on Mon 8 Apr.", "fact": "1963-04-07T22:37:52Z → 1963-04-09T00:56:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 7th, 11:56–12:44 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17620 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Toronto, 1963: Monday 8 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chaitri-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Caitri purnima (paraviddha), Hanumat jayanti, Oli ending (Jain)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-08", "confidence": "determinate" } ], "quote": "In Toronto, Caitrī Pūrṇimā 1963 falls on Monday 8 April. Pūrṇimā runs from 17:38 on Sun 7 Apr to 19:57 on Mon 8 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-04-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20195, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-04-12T03:11:01-05:00", "utc": "1963-04-12T08:11:01Z", "ms": -212168938877.99545 }, "end": { "local": "1963-04-13T05:24:47-05:00", "utc": "1963-04-13T10:24:47Z", "ms": -212074513361.62445 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-12T03:11:01-05:00", "utc": "1963-04-12T08:11:01Z", "ms": -212168938877.99545 }, "end": { "local": "1963-04-13T05:24:47-05:00", "utc": "1963-04-13T10:24:47Z", "ms": -212074513361.62445 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-04-11", "window": { "start": { "local": "1963-04-11T21:34:26-05:00", "utc": "1963-04-12T02:34:26Z", "ms": -212189133868.22488 }, "end": { "local": "1963-04-11T21:34:26-05:00", "utc": "1963-04-12T02:34:26Z", "ms": -212189133868.22488 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-04-12", "window": { "start": { "local": "1963-04-12T22:33:58-05:00", "utc": "1963-04-13T03:33:58Z", "ms": -212099161926.41064 }, "end": { "local": "1963-04-12T22:33:58-05:00", "utc": "1963-04-13T03:33:58Z", "ms": -212099161926.41064 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:11 on Fri 12 Apr to 05:25 on Sat 13 Apr.", "fact": "1963-04-12T08:11:01Z → 1963-04-13T10:24:47Z" }, { "step": "kaala", "text": "Moonrise is at 21:34 on the 11th and 22:34 on the 12th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 11th and is on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20195 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Friday 12 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": "1963-04-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-12", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Friday 12 April. Caturthī runs from 03:11 on Fri 12 Apr to 05:25 on Sat 13 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-04-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37702, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1963-04-13T19:09:32-05:00", "utc": "1963-04-14T00:09:32Z", "ms": -212025028195.565 }, "end": { "local": "1963-05-14T17:03:32-04:00", "utc": "1963-05-14T21:03:32Z", "ms": -209357787607.53253 } }, "span": { "of": "transit", "start": { "local": "1963-04-13T19:09:32-05:00", "utc": "1963-04-14T00:09:32Z", "ms": -212025028195.565 }, "end": { "local": "1963-04-13T19:09:32-05:00", "utc": "1963-04-14T00:09:32Z", "ms": -212025028195.565 } }, "kaala": "day", "days": [ { "local_date": "1963-04-13", "window": { "start": { "local": "1963-04-13T05:39:36-05:00", "utc": "1963-04-13T10:39:36Z", "ms": -212073623878.3378 }, "end": { "local": "1963-04-14T05:37:54-05:00", "utc": "1963-04-14T10:37:54Z", "ms": -211987325779.1223 } }, "covered_min": 1, "window_min": 1438, "qualifies": true }, { "local_date": "1963-04-14", "window": { "start": { "local": "1963-04-14T05:37:54-05:00", "utc": "1963-04-14T10:37:54Z", "ms": -211987325779.1223 }, "end": { "local": "1963-04-15T05:36:13-05:00", "utc": "1963-04-15T10:36:13Z", "ms": -211901027016.93353 } }, "covered_min": 0, "window_min": 1438, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 19:10 on Sat 13 Apr.", "fact": "1963-04-14T00:09:32Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:40 on the 13th, and from 05:38 on the 14th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 37702 s" }, { "step": "ruling", "text": "Vaiśākhī, Toronto, 1963: Saturday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1963-04-13", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1963-04-14", "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 Toronto, Vaiśākhī 1963 falls on Saturday 13 April. The Sun enters Meṣa at 19:10 on Sat 13 Apr, and the rule counts the day from sunrise. By the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 April.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-04-20", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-20", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 144, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-04-19T07:44:13-05:00", "utc": "1963-04-19T12:44:13Z", "ms": -211547746789.94705 }, "end": { "local": "1963-04-20T05:30:22-05:00", "utc": "1963-04-20T10:30:22Z", "ms": -211469377913.4364 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-19T07:44:13-05:00", "utc": "1963-04-19T12:44:13Z", "ms": -211547746789.94705 }, "end": { "local": "1963-04-20T05:30:22-05:00", "utc": "1963-04-20T10:30:22Z", "ms": -211469377913.4364 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-04-19", "window": { "start": { "local": "1963-04-19T05:29:35-05:00", "utc": "1963-04-19T10:29:35Z", "ms": -211555824673.05884 }, "end": { "local": "1963-04-19T05:29:35-05:00", "utc": "1963-04-19T10:29:35Z", "ms": -211555824673.05884 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-04-20", "window": { "start": { "local": "1963-04-20T05:27:58-05:00", "utc": "1963-04-20T10:27:58Z", "ms": -211469522098.33737 }, "end": { "local": "1963-04-20T05:27:58-05:00", "utc": "1963-04-20T10:27:58Z", "ms": -211469522098.33737 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-04-21", "start": { "local": "1963-04-21T05:26:21-05:00", "utc": "1963-04-21T10:26:21Z", "ms": -211383218663.55576 }, "end": { "local": "1963-04-21T08:10:30-05:00", "utc": "1963-04-21T13:10:30Z", "ms": -211373369870.79272 }, "basis": "dvadashi-over", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-04-21T02:36:36-05:00", "utc": "1963-04-21T07:36:36Z", "ms": -211393403906.2874 }, "hari_vasara_end": { "local": "1963-04-20T10:46:56-05:00", "utc": "1963-04-20T15:46:56Z", "ms": -211450384411.64917 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:44 on Fri 19 Apr to 05:30 on Sat 20 Apr.", "fact": "1963-04-19T12:44:13Z → 1963-04-20T10:30:22Z" }, { "step": "kaala", "text": "Sunrise is at 05:30 on the 19th and 05:28 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 19th and is on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 144 s < 300 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Toronto, 1963: Saturday 20 April.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-20", "confidence": "boundary" } ], "quote": "In Toronto, Varūthinī Ekādaśī 1963 falls on Saturday 20 April. Ekādaśī runs from 07:44 on Fri 19 Apr to 05:30 on Sat 20 Apr and is current at sunrise that day. It is 2 min 24 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-04-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-04-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9719, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-04-21T02:36:36-05:00", "utc": "1963-04-21T07:36:36Z", "ms": -211393403906.2874 }, "end": { "local": "1963-04-21T23:11:26-05:00", "utc": "1963-04-22T04:11:26Z", "ms": -211319313863.2465 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-21T02:36:36-05:00", "utc": "1963-04-21T07:36:36Z", "ms": -211393403906.2874 }, "end": { "local": "1963-04-21T23:11:26-05:00", "utc": "1963-04-22T04:11:26Z", "ms": -211319313863.2465 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-04-20", "window": { "start": { "local": "1963-04-20T19:05:54-05:00", "utc": "1963-04-21T00:05:54Z", "ms": -211420446139.43643 }, "end": { "local": "1963-04-20T20:28:38-05:00", "utc": "1963-04-21T01:28:38Z", "ms": -211415482475.9857 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "1963-04-21", "window": { "start": { "local": "1963-04-21T19:07:05-05:00", "utc": "1963-04-22T00:07:05Z", "ms": -211333974699.74063 }, "end": { "local": "1963-04-21T20:29:27-05:00", "utc": "1963-04-22T01:29:27Z", "ms": -211329033318.14117 } }, "covered_min": 82, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:37 on Sun 21 Apr to 23:11 on Sun 21 Apr.", "fact": "1963-04-21T07:36:36Z → 1963-04-22T04:11:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:06–20:29 on the 20th, 19:07–20:29 on the 21st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 83 minutes on the 20th and 82 of 82 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9719 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Sunday 21 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": "1963-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-21", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Sunday 21 April. Trayodaśī runs from 02:37 on Sun 21 Apr to 23:11 on Sun 21 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-04-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-04-21", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2429, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-04-21T23:11:26-05:00", "utc": "1963-04-22T04:11:26Z", "ms": -211319313863.2465 }, "end": { "local": "1963-04-22T19:25:04-05:00", "utc": "1963-04-23T00:25:04Z", "ms": -211246496286.47748 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-21T23:11:26-05:00", "utc": "1963-04-22T04:11:26Z", "ms": -211319313863.2465 }, "end": { "local": "1963-04-22T19:25:04-05:00", "utc": "1963-04-23T00:25:04Z", "ms": -211246496286.47748 } }, "kaala": "nishita", "days": [ { "local_date": "1963-04-21", "window": { "start": { "local": "1963-04-21T23:51:55-05:00", "utc": "1963-04-22T04:51:55Z", "ms": -211316884518.74268 }, "end": { "local": "1963-04-22T00:39:55-05:00", "utc": "1963-04-22T05:39:55Z", "ms": -211314004518.74268 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-04-22", "window": { "start": { "local": "1963-04-22T23:51:44-05:00", "utc": "1963-04-23T04:51:44Z", "ms": -211230496184.52692 }, "end": { "local": "1963-04-23T00:39:44-05:00", "utc": "1963-04-23T05:39:44Z", "ms": -211227616184.52692 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:11 on Sun 21 Apr to 19:25 on Mon 22 Apr.", "fact": "1963-04-22T04:11:26Z → 1963-04-23T00:25:04Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:52–00:40 on the 21st, 23:52–00:40 on the 22nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2429 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Sunday 21 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-21", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Sunday 21 April. Caturdaśī runs from 23:11 on Sun 21 Apr to 19:25 on Mon 22 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-04-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2659, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1963-04-25T07:52:03-05:00", "utc": "1963-04-25T12:52:03Z", "ms": -211028876788.75095 }, "end": { "local": "1963-04-26T04:34:14-05:00", "utc": "1963-04-26T09:34:14Z", "ms": -210954346473.64264 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-25T07:52:03-05:00", "utc": "1963-04-25T12:52:03Z", "ms": -211028876788.75095 }, "end": { "local": "1963-04-26T04:34:14-05:00", "utc": "1963-04-26T09:34:14Z", "ms": -210954346473.64264 } }, "kaala": "purvahna", "days": [ { "local_date": "1963-04-25", "window": { "start": { "local": "1963-04-25T05:20:04-05:00", "utc": "1963-04-25T10:20:04Z", "ms": -211037995715.4661 }, "end": { "local": "1963-04-25T09:57:20-05:00", "utc": "1963-04-25T14:57:20Z", "ms": -211021360236.9184 } }, "covered_min": 125, "window_min": 277, "qualifies": true }, { "local_date": "1963-04-26", "window": { "start": { "local": "1963-04-26T05:18:32-05:00", "utc": "1963-04-26T10:18:32Z", "ms": -210951687526.4473 }, "end": { "local": "1963-04-26T09:56:42-05:00", "utc": "1963-04-26T14:56:42Z", "ms": -210934997716.38962 } }, "covered_min": 0, "window_min": 278, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 07:52 on Thu 25 Apr to 04:34 on Fri 26 Apr.", "fact": "1963-04-25T12:52:03Z → 1963-04-26T09:34:14Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:20–09:57 on the 25th, 05:19–09:57 on the 26th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 125 of 277 minutes on the 25th and 0 of 278 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2659 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Toronto, 1963: Thursday 25 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": "1963-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-25", "confidence": "determinate" } ], "quote": "In Toronto, Akṣaya Tṛtīyā 1963 falls on Thursday 25 April. Tṛtīyā runs from 07:52 on Thu 25 Apr to 04:34 on Fri 26 Apr and covers 125 of 277 minutes of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28889, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1963-04-25T07:52:03-05:00", "utc": "1963-04-25T12:52:03Z", "ms": -211028876788.75095 }, "end": { "local": "1963-04-26T04:34:14-05:00", "utc": "1963-04-26T09:34:14Z", "ms": -210954346473.64264 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-25T07:52:03-05:00", "utc": "1963-04-25T12:52:03Z", "ms": -211028876788.75095 }, "end": { "local": "1963-04-26T04:34:14-05:00", "utc": "1963-04-26T09:34:14Z", "ms": -210954346473.64264 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-04-24", "window": { "start": { "local": "1963-04-24T19:10:39-05:00", "utc": "1963-04-25T00:10:39Z", "ms": -211074560550.54965 }, "end": { "local": "1963-04-24T20:31:55-05:00", "utc": "1963-04-25T01:31:55Z", "ms": -211069685239.20517 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1963-04-25", "window": { "start": { "local": "1963-04-25T19:11:51-05:00", "utc": "1963-04-26T00:11:51Z", "ms": -210988089279.823 }, "end": { "local": "1963-04-25T20:32:44-05:00", "utc": "1963-04-26T01:32:44Z", "ms": -210983235712.70624 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 07:52 on Thu 25 Apr to 04:34 on Fri 26 Apr.", "fact": "1963-04-25T12:52:03Z → 1963-04-26T09:34:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:11–20:32 on the 24th, 19:12–20:33 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 0 of 81 minutes on the 24th and 81 of 81 on the 25th.", "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 28889 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Toronto, 1963: Thursday 25 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-25", "confidence": "determinate" } ], "quote": "In Toronto, Paraśurāma Jayantī 1963 falls on Thursday 25 April. Tṛtīyā runs from 07:52 on Thu 25 Apr to 04:34 on Fri 26 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-04-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26254, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-04-26T04:34:14-05:00", "utc": "1963-04-26T09:34:14Z", "ms": -210954346473.64264 }, "end": { "local": "1963-04-27T01:50:02-05:00", "utc": "1963-04-27T06:50:02Z", "ms": -210877798245.2884 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-26T04:34:14-05:00", "utc": "1963-04-26T09:34:14Z", "ms": -210954346473.64264 }, "end": { "local": "1963-04-27T01:50:02-05:00", "utc": "1963-04-27T06:50:02Z", "ms": -210877798245.2884 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-04-26", "window": { "start": { "local": "1963-04-26T11:51:47-05:00", "utc": "1963-04-26T16:51:47Z", "ms": -210928092811.36078 }, "end": { "local": "1963-04-26T12:39:47-05:00", "utc": "1963-04-26T17:39:47Z", "ms": -210925212811.36078 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-04-27", "window": { "start": { "local": "1963-04-27T11:51:37-05:00", "utc": "1963-04-27T16:51:37Z", "ms": -210841702657.13763 }, "end": { "local": "1963-04-27T12:39:37-05:00", "utc": "1963-04-27T17:39:37Z", "ms": -210838822657.13763 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:34 on Fri 26 Apr to 01:50 on Sat 27 Apr.", "fact": "1963-04-26T09:34:14Z → 1963-04-27T06:50:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 26th, 11:52–12:40 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26254 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Friday 26 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": "1963-04-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-26", "confidence": "determinate" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Friday 26 April. Caturthī runs from 04:34 on Fri 26 Apr to 01:50 on Sat 27 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-04-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36096, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1963-04-27T01:50:02-05:00", "utc": "1963-04-27T06:50:02Z", "ms": -210877798245.2884 }, "end": { "local": "1963-04-27T23:47:16-05:00", "utc": "1963-04-28T04:47:16Z", "ms": -210798763752.62686 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-27T01:50:02-05:00", "utc": "1963-04-27T06:50:02Z", "ms": -210877798245.2884 }, "end": { "local": "1963-04-27T23:47:16-05:00", "utc": "1963-04-28T04:47:16Z", "ms": -210798763752.62686 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-04-27", "window": { "start": { "local": "1963-04-27T11:51:37-05:00", "utc": "1963-04-27T16:51:37Z", "ms": -210841702657.13763 }, "end": { "local": "1963-04-27T12:39:37-05:00", "utc": "1963-04-27T17:39:37Z", "ms": -210838822657.13763 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-04-28", "window": { "start": { "local": "1963-04-28T12:51:28-04:00", "utc": "1963-04-28T16:51:28Z", "ms": -210755312028.1648 }, "end": { "local": "1963-04-28T13:39:28-04:00", "utc": "1963-04-28T17:39:28Z", "ms": -210752432028.1648 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:50 on Sat 27 Apr to 23:47 on Sat 27 Apr.", "fact": "1963-04-27T06:50:02Z → 1963-04-28T04:47:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 27th, 12:51–13:39 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36096 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Toronto, 1963: Saturday 27 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-27", "confidence": "determinate" } ], "quote": "In Toronto, Śaṅkara Jayantī 1963 falls on Saturday 27 April. Pañcamī runs from 01:50 on Sat 27 Apr to 23:47 on Sat 27 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33853, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1963-04-28T23:31:08-04:00", "utc": "1963-04-29T03:31:08Z", "ms": -210716931893.40088 }, "end": { "local": "1963-04-29T23:03:32-04:00", "utc": "1963-04-30T03:03:32Z", "ms": -210632188094.01862 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-04-28T23:31:08-04:00", "utc": "1963-04-29T03:31:08Z", "ms": -210716931893.40088 }, "end": { "local": "1963-04-29T23:03:32-04:00", "utc": "1963-04-30T03:03:32Z", "ms": -210632188094.01862 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-04-28", "window": { "start": { "local": "1963-04-28T12:51:28-04:00", "utc": "1963-04-28T16:51:28Z", "ms": -210755312028.1648 }, "end": { "local": "1963-04-28T13:39:28-04:00", "utc": "1963-04-28T17:39:28Z", "ms": -210752432028.1648 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-04-29", "window": { "start": { "local": "1963-04-29T12:51:19-04:00", "utc": "1963-04-29T16:51:19Z", "ms": -210668920916.8982 }, "end": { "local": "1963-04-29T13:39:19-04:00", "utc": "1963-04-29T17:39:19Z", "ms": -210666040916.8982 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 23:31 on Sun 28 Apr to 23:04 on Mon 29 Apr.", "fact": "1963-04-29T03:31:08Z → 1963-04-30T03:03:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 28th, 12:51–13:39 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33853 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Toronto, 1963: Monday 29 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-04-29", "confidence": "determinate" } ], "quote": "In Toronto, Gaṅgotpatti (Ganga Saptami) 1963 falls on Monday 29 April. Saptamī runs from 23:31 on Sun 28 Apr to 23:04 on Mon 29 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-05-03", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7732, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-05-03T01:58:28-04:00", "utc": "1963-05-03T05:58:28Z", "ms": -210362492364.68433 }, "end": { "local": "1963-05-04T03:58:06-04:00", "utc": "1963-05-04T07:58:06Z", "ms": -210268913601.45578 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-03T01:58:28-04:00", "utc": "1963-05-03T05:58:28Z", "ms": -210362492364.68433 }, "end": { "local": "1963-05-04T03:58:06-04:00", "utc": "1963-05-04T07:58:06Z", "ms": -210268913601.45578 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-05-03", "window": { "start": { "local": "1963-05-03T06:08:21-04:00", "utc": "1963-05-03T10:08:21Z", "ms": -210347499105.28885 }, "end": { "local": "1963-05-03T06:08:21-04:00", "utc": "1963-05-03T10:08:21Z", "ms": -210347499105.28885 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-05-04", "window": { "start": { "local": "1963-05-04T06:06:58-04:00", "utc": "1963-05-04T10:06:58Z", "ms": -210261181609.80225 }, "end": { "local": "1963-05-04T06:06:58-04:00", "utc": "1963-05-04T10:06:58Z", "ms": -210261181609.80225 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-05-04", "start": { "local": "1963-05-04T14:40:15-04:00", "utc": "1963-05-04T18:40:15Z", "ms": -210230385081.97015 }, "end": { "local": "1963-05-04T17:31:20-04:00", "utc": "1963-05-04T21:31:20Z", "ms": -210220119572.69278 }, "basis": "aparahna", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-05-05T06:13:33-04:00", "utc": "1963-05-05T10:13:33Z", "ms": -210174387100.50317 }, "hari_vasara_end": { "local": "1963-05-04T10:31:58-04:00", "utc": "1963-05-04T14:31:58Z", "ms": -210245281976.21762 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:58 on Fri 3 May to 03:58 on Sat 4 May.", "fact": "1963-05-03T05:58:28Z → 1963-05-04T07:58:06Z" }, { "step": "kaala", "text": "Sunrise is at 06:08 on the 3rd and 06:07 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7732 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Toronto, 1963: Friday 3 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-03", "confidence": "determinate" } ], "quote": "In Toronto, Mohinī Ekādaśī 1963 falls on Friday 3 May. Ekādaśī runs from 01:58 on Fri 3 May to 03:58 on Sat 4 May and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-05-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23823, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1963-05-04T03:58:06-04:00", "utc": "1963-05-04T07:58:06Z", "ms": -210268913601.45578 }, "end": { "local": "1963-05-05T06:13:33-04:00", "utc": "1963-05-05T10:13:33Z", "ms": -210174387100.50317 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-04T03:58:06-04:00", "utc": "1963-05-04T07:58:06Z", "ms": -210268913601.45578 }, "end": { "local": "1963-05-05T06:13:33-04:00", "utc": "1963-05-05T10:13:33Z", "ms": -210174387100.50317 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-05-04", "window": { "start": { "local": "1963-05-04T12:50:42-04:00", "utc": "1963-05-04T16:50:42Z", "ms": -210236957836.60883 }, "end": { "local": "1963-05-04T13:38:42-04:00", "utc": "1963-05-04T17:38:42Z", "ms": -210234077836.60883 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-05-05", "window": { "start": { "local": "1963-05-05T12:50:36-04:00", "utc": "1963-05-05T16:50:36Z", "ms": -210150563657.91248 }, "end": { "local": "1963-05-05T13:38:36-04:00", "utc": "1963-05-05T17:38:36Z", "ms": -210147683657.91248 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:58 on Sat 4 May to 06:14 on Sun 5 May.", "fact": "1963-05-04T07:58:06Z → 1963-05-05T10:13:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 4th, 12:51–13:39 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23823 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Toronto, 1963: Saturday 4 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-04", "confidence": "determinate" } ], "quote": "In Toronto, Paraśurāma Dvādaśī 1963 falls on Saturday 4 May. Dvādaśī runs from 03:58 on Sat 4 May to 06:14 on Sun 5 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23823, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1963-05-04T03:58:06-04:00", "utc": "1963-05-04T07:58:06Z", "ms": -210268913601.45578 }, "end": { "local": "1963-05-05T06:13:33-04:00", "utc": "1963-05-05T10:13:33Z", "ms": -210174387100.50317 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-04T03:58:06-04:00", "utc": "1963-05-04T07:58:06Z", "ms": -210268913601.45578 }, "end": { "local": "1963-05-05T06:13:33-04:00", "utc": "1963-05-05T10:13:33Z", "ms": -210174387100.50317 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-05-04", "window": { "start": { "local": "1963-05-04T12:50:42-04:00", "utc": "1963-05-04T16:50:42Z", "ms": -210236957836.60883 }, "end": { "local": "1963-05-04T13:38:42-04:00", "utc": "1963-05-04T17:38:42Z", "ms": -210234077836.60883 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-05-05", "window": { "start": { "local": "1963-05-05T12:50:36-04:00", "utc": "1963-05-05T16:50:36Z", "ms": -210150563657.91248 }, "end": { "local": "1963-05-05T13:38:36-04:00", "utc": "1963-05-05T17:38:36Z", "ms": -210147683657.91248 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:58 on Sat 4 May to 06:14 on Sun 5 May.", "fact": "1963-05-04T07:58:06Z → 1963-05-05T10:13:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 4th, 12:51–13:39 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23823 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Toronto, 1963: Saturday 4 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rukmini-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-04", "confidence": "determinate" } ], "quote": "In Toronto, Rukmiṇī Dvādaśī 1963 falls on Saturday 4 May. Dvādaśī runs from 03:58 on Sat 4 May to 06:14 on Sun 5 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/pradosha-vrata?on=1963-05-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30801, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-05-05T06:13:33-04:00", "utc": "1963-05-05T10:13:33Z", "ms": -210174387100.50317 }, "end": { "local": "1963-05-06T08:36:52-04:00", "utc": "1963-05-06T12:36:52Z", "ms": -210079388225.87607 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-05T06:13:33-04:00", "utc": "1963-05-05T10:13:33Z", "ms": -210174387100.50317 }, "end": { "local": "1963-05-06T08:36:52-04:00", "utc": "1963-05-06T12:36:52Z", "ms": -210079388225.87607 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-05-04", "window": { "start": { "local": "1963-05-04T20:22:26-04:00", "utc": "1963-05-05T00:22:26Z", "ms": -210209854063.4154 }, "end": { "local": "1963-05-04T21:40:11-04:00", "utc": "1963-05-05T01:40:11Z", "ms": -210205188560.36865 } }, "covered_min": 0, "window_min": 78, "qualifies": false }, { "local_date": "1963-05-05", "window": { "start": { "local": "1963-05-05T20:23:35-04:00", "utc": "1963-05-06T00:23:35Z", "ms": -210123384525.2602 }, "end": { "local": "1963-05-05T21:41:01-04:00", "utc": "1963-05-06T01:41:01Z", "ms": -210118738936.74716 } }, "covered_min": 77, "window_min": 77, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:14 on Sun 5 May to 08:37 on Mon 6 May.", "fact": "1963-05-05T10:13:33Z → 1963-05-06T12:36:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:22–21:40 on the 4th, 20:24–21:41 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 78 minutes on the 4th and 77 of 77 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30801 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Sunday 5 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-05", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Sunday 5 May. Trayodaśī runs from 06:14 on Sun 5 May to 08:37 on Mon 6 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-05-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33851, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-05-06T08:36:52-04:00", "utc": "1963-05-06T12:36:52Z", "ms": -210079388225.87607 }, "end": { "local": "1963-05-07T11:01:42-04:00", "utc": "1963-05-07T15:01:42Z", "ms": -209984297648.373 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-06T08:36:52-04:00", "utc": "1963-05-06T12:36:52Z", "ms": -210079388225.87607 }, "end": { "local": "1963-05-07T11:01:42-04:00", "utc": "1963-05-07T15:01:42Z", "ms": -209984297648.373 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-05-06", "window": { "start": { "local": "1963-05-06T20:24:45-04:00", "utc": "1963-05-07T00:24:45Z", "ms": -210036915269.116 }, "end": { "local": "1963-05-06T21:41:51-04:00", "utc": "1963-05-07T01:41:51Z", "ms": -210032289371.39133 } }, "covered_min": 77, "window_min": 77, "qualifies": true }, { "local_date": "1963-05-07", "window": { "start": { "local": "1963-05-07T20:25:54-04:00", "utc": "1963-05-08T00:25:54Z", "ms": -209950446317.37018 }, "end": { "local": "1963-05-07T21:42:40-04:00", "utc": "1963-05-08T01:42:40Z", "ms": -209945839878.88406 } }, "covered_min": 0, "window_min": 77, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:37 on Mon 6 May to 11:02 on Tue 7 May.", "fact": "1963-05-06T12:36:52Z → 1963-05-07T15:01:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:25–21:42 on the 6th, 20:26–21:43 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 77 of 77 minutes on the 6th and 0 of 77 on the 7th.", "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 33851 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Toronto, 1963: Monday 6 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": "1963-05-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-06", "confidence": "determinate" } ], "quote": "In Toronto, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1963 falls on Monday 6 May. Caturdaśī runs from 08:37 on Mon 6 May to 11:02 on Tue 7 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-07", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 913, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-05-07T11:01:42-04:00", "utc": "1963-05-07T15:01:42Z", "ms": -209984297648.373 }, "end": { "local": "1963-05-08T13:23:10-04:00", "utc": "1963-05-08T17:23:10Z", "ms": -209889410403.18015 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-07T11:01:42-04:00", "utc": "1963-05-07T15:01:42Z", "ms": -209984297648.373 }, "end": { "local": "1963-05-08T13:23:10-04:00", "utc": "1963-05-08T17:23:10Z", "ms": -209889410403.18015 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-05-07", "window": { "start": { "local": "1963-05-07T12:50:26-04:00", "utc": "1963-05-07T16:50:26Z", "ms": -209977773676.77557 }, "end": { "local": "1963-05-07T13:38:26-04:00", "utc": "1963-05-07T17:38:26Z", "ms": -209974893676.77557 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-05-08", "window": { "start": { "local": "1963-05-08T12:50:22-04:00", "utc": "1963-05-08T16:50:22Z", "ms": -209891377861.1098 }, "end": { "local": "1963-05-08T13:38:22-04:00", "utc": "1963-05-08T17:38:22Z", "ms": -209888497861.1098 } }, "covered_min": 33, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 11:02 on Tue 7 May to 13:23 on Wed 8 May.", "fact": "1963-05-07T15:01:42Z → 1963-05-08T17:23:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:50–13:38 on the 7th, 12:50–13:38 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 33 of 48 on the 8th.", "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 913 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Toronto, 1963: Tuesday 7 May.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1963-05-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-07", "confidence": "boundary" } ], "quote": "In Toronto, Buddha Pūrṇimā 1963 falls on Tuesday 7 May. Pūrṇimā runs from 11:02 on Tue 7 May to 13:23 on Wed 8 May and covers all of madhyāhna that midday. It also reaches the next midday for 33 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/toronto/festivals/1963/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": "/toronto/festivals/1963/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 913, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-05-07T11:01:42-04:00", "utc": "1963-05-07T15:01:42Z", "ms": -209984297648.373 }, "end": { "local": "1963-05-08T13:23:10-04:00", "utc": "1963-05-08T17:23:10Z", "ms": -209889410403.18015 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-07T11:01:42-04:00", "utc": "1963-05-07T15:01:42Z", "ms": -209984297648.373 }, "end": { "local": "1963-05-08T13:23:10-04:00", "utc": "1963-05-08T17:23:10Z", "ms": -209889410403.18015 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-05-07", "window": { "start": { "local": "1963-05-07T12:50:26-04:00", "utc": "1963-05-07T16:50:26Z", "ms": -209977773676.77557 }, "end": { "local": "1963-05-07T13:38:26-04:00", "utc": "1963-05-07T17:38:26Z", "ms": -209974893676.77557 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-05-08", "window": { "start": { "local": "1963-05-08T12:50:22-04:00", "utc": "1963-05-08T16:50:22Z", "ms": -209891377861.1098 }, "end": { "local": "1963-05-08T13:38:22-04:00", "utc": "1963-05-08T17:38:22Z", "ms": -209888497861.1098 } }, "covered_min": 33, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 11:02 on Tue 7 May to 13:23 on Wed 8 May.", "fact": "1963-05-07T15:01:42Z → 1963-05-08T17:23:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:50–13:38 on the 7th, 12:50–13:38 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 33 of 48 on the 8th.", "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 913 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Toronto, 1963: Wednesday 8 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": "1963-05-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-08", "confidence": "determinate" } ], "quote": "In Toronto, Sampat Gaurī Vrata 1963 falls on Wednesday 8 May. Pūrṇimā runs from 11:02 on Tue 7 May to 13:23 on Wed 8 May and covers 33 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-05-11", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12476, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-05-11T19:26:08-04:00", "utc": "1963-05-11T23:26:08Z", "ms": -209608431576.4538 }, "end": { "local": "1963-05-12T20:51:12-04:00", "utc": "1963-05-13T00:51:12Z", "ms": -209516928489.413 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-11T19:26:08-04:00", "utc": "1963-05-11T23:26:08Z", "ms": -209608431576.4538 }, "end": { "local": "1963-05-12T20:51:12-04:00", "utc": "1963-05-13T00:51:12Z", "ms": -209516928489.413 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-05-11", "window": { "start": { "local": "1963-05-11T23:25:03-04:00", "utc": "1963-05-12T03:25:03Z", "ms": -209594096954.3927 }, "end": { "local": "1963-05-11T23:25:03-04:00", "utc": "1963-05-12T03:25:03Z", "ms": -209594096954.3927 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-05-12", "window": { "start": { "local": "1963-05-13T00:19:08-04:00", "utc": "1963-05-13T04:19:08Z", "ms": -209504452005.95337 }, "end": { "local": "1963-05-13T00:19:08-04:00", "utc": "1963-05-13T04:19:08Z", "ms": -209504452005.95337 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:26 on Sat 11 May to 20:51 on Sun 12 May.", "fact": "1963-05-11T23:26:08Z → 1963-05-13T00:51:12Z" }, { "step": "kaala", "text": "Moonrise is at 23:25 on the 11th and 00:19 on the 12th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 11th and is not on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12476 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Saturday 11 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": "1963-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-11", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Saturday 11 May. Caturthī runs from 19:26 on Sat 11 May to 20:51 on Sun 12 May and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-05-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-05-19", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30484, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-05-18T17:08:26-04:00", "utc": "1963-05-18T21:08:26Z", "ms": -209011893720.39694 }, "end": { "local": "1963-05-19T14:17:24-04:00", "utc": "1963-05-19T18:17:24Z", "ms": -208935755969.08575 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-18T17:08:26-04:00", "utc": "1963-05-18T21:08:26Z", "ms": -209011893720.39694 }, "end": { "local": "1963-05-19T14:17:24-04:00", "utc": "1963-05-19T18:17:24Z", "ms": -208935755969.08575 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-05-18", "window": { "start": { "local": "1963-05-18T05:50:19-04:00", "utc": "1963-05-18T09:50:19Z", "ms": -209052581327.81586 }, "end": { "local": "1963-05-18T05:50:19-04:00", "utc": "1963-05-18T09:50:19Z", "ms": -209052581327.81586 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-05-19", "window": { "start": { "local": "1963-05-19T05:49:20-04:00", "utc": "1963-05-19T09:49:20Z", "ms": -208966240234.11954 }, "end": { "local": "1963-05-19T05:49:20-04:00", "utc": "1963-05-19T09:49:20Z", "ms": -208966240234.11954 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-05-20", "start": { "local": "1963-05-20T05:48:23-04:00", "utc": "1963-05-20T09:48:23Z", "ms": -208879897298.79993 }, "end": { "local": "1963-05-20T08:46:44-04:00", "utc": "1963-05-20T12:46:44Z", "ms": -208869195903.23285 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-05-20T10:59:33-04:00", "utc": "1963-05-20T14:59:33Z", "ms": -208861227115.06625 }, "hari_vasara_end": { "local": "1963-05-19T19:27:56-04:00", "utc": "1963-05-19T23:27:56Z", "ms": -208917123755.58087 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:08 on Sat 18 May to 14:17 on Sun 19 May.", "fact": "1963-05-18T21:08:26Z → 1963-05-19T18:17:24Z" }, { "step": "kaala", "text": "Sunrise is at 05:50 on the 18th and 05:49 on the 19th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 18th and is on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30484 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Toronto, 1963: Sunday 19 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-19", "confidence": "determinate" } ], "quote": "In Toronto, Aparā Ekādaśī 1963 falls on Sunday 19 May. Ekādaśī runs from 17:08 on Sat 18 May to 14:17 on Sun 19 May and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-05-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-05-20", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34244, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-05-20T10:59:33-04:00", "utc": "1963-05-20T14:59:33Z", "ms": -208861227115.06625 }, "end": { "local": "1963-05-21T07:23:52-04:00", "utc": "1963-05-21T11:23:52Z", "ms": -208787768016.05173 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-20T10:59:33-04:00", "utc": "1963-05-20T14:59:33Z", "ms": -208861227115.06625 }, "end": { "local": "1963-05-21T07:23:52-04:00", "utc": "1963-05-21T11:23:52Z", "ms": -208787768016.05173 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-05-19", "window": { "start": { "local": "1963-05-19T20:39:07-04:00", "utc": "1963-05-20T00:39:07Z", "ms": -208912852624.36285 }, "end": { "local": "1963-05-19T21:52:21-04:00", "utc": "1963-05-20T01:52:21Z", "ms": -208908458580.95447 } }, "covered_min": 0, "window_min": 73, "qualifies": false }, { "local_date": "1963-05-20", "window": { "start": { "local": "1963-05-20T20:40:10-04:00", "utc": "1963-05-21T00:40:10Z", "ms": -208826390320.96454 }, "end": { "local": "1963-05-20T21:53:08-04:00", "utc": "1963-05-21T01:53:08Z", "ms": -208822011944.1325 } }, "covered_min": 73, "window_min": 73, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:00 on Mon 20 May to 07:24 on Tue 21 May.", "fact": "1963-05-20T14:59:33Z → 1963-05-21T11:23:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:39–21:52 on the 19th, 20:40–21:53 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 73 minutes on the 19th and 73 of 73 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34244 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Monday 20 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-20", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Monday 20 May. Trayodaśī runs from 11:00 on Mon 20 May to 07:24 on Tue 21 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-05-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-05-21", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7352, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-05-21T07:23:52-04:00", "utc": "1963-05-21T11:23:52Z", "ms": -208787768016.05173 }, "end": { "local": "1963-05-22T03:40:24-04:00", "utc": "1963-05-22T07:40:24Z", "ms": -208714775538.8434 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-21T07:23:52-04:00", "utc": "1963-05-21T11:23:52Z", "ms": -208787768016.05173 }, "end": { "local": "1963-05-22T03:40:24-04:00", "utc": "1963-05-22T07:40:24Z", "ms": -208714775538.8434 } }, "kaala": "nishita", "days": [ { "local_date": "1963-05-20", "window": { "start": { "local": "1963-05-21T00:49:49-04:00", "utc": "1963-05-21T04:49:49Z", "ms": -208811411407.84442 }, "end": { "local": "1963-05-21T01:37:49-04:00", "utc": "1963-05-21T05:37:49Z", "ms": -208808531407.84442 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-05-21", "window": { "start": { "local": "1963-05-22T00:49:53-04:00", "utc": "1963-05-22T04:49:53Z", "ms": -208725007299.09436 }, "end": { "local": "1963-05-22T01:37:53-04:00", "utc": "1963-05-22T05:37:53Z", "ms": -208722127299.09436 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:24 on Tue 21 May to 03:40 on Wed 22 May.", "fact": "1963-05-21T11:23:52Z → 1963-05-22T07:40:24Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:50–01:38 on the 20th, 00:50–01:38 on the 21st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7352 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Tuesday 21 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-21", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Tuesday 21 May. Caturdaśī runs from 07:24 on Tue 21 May to 03:40 on Wed 22 May and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-05-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4827, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1963-05-24T17:29:19-04:00", "utc": "1963-05-24T21:29:19Z", "ms": -208492240850.97452 }, "end": { "local": "1963-05-25T14:59:05-04:00", "utc": "1963-05-25T18:59:05Z", "ms": -208414855343.4343 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-24T17:29:19-04:00", "utc": "1963-05-24T21:29:19Z", "ms": -208492240850.97452 }, "end": { "local": "1963-05-25T14:59:05-04:00", "utc": "1963-05-25T18:59:05Z", "ms": -208414855343.4343 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-05-24", "window": { "start": { "local": "1963-05-24T12:50:32-04:00", "utc": "1963-05-24T16:50:32Z", "ms": -208508968038.34296 }, "end": { "local": "1963-05-24T13:38:32-04:00", "utc": "1963-05-24T17:38:32Z", "ms": -208506088038.34296 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-05-25", "window": { "start": { "local": "1963-05-25T12:50:37-04:00", "utc": "1963-05-25T16:50:37Z", "ms": -208422562843.01752 }, "end": { "local": "1963-05-25T13:38:37-04:00", "utc": "1963-05-25T17:38:37Z", "ms": -208419682843.01752 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 17:29 on Fri 24 May to 14:59 on Sat 25 May.", "fact": "1963-05-24T21:29:19Z → 1963-05-25T18:59:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 24th, 12:51–13:39 on the 25th.", "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 24th and 48 of 48 on the 25th.", "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 4827 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Toronto, 1963: Saturday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-25", "confidence": "determinate" } ], "quote": "In Toronto, Rambhā Tṛtīyā 1963 falls on Saturday 25 May. Tṛtīyā runs from 17:29 on Fri 24 May to 14:59 on Sat 25 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-05-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1135, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-05-25T14:59:05-04:00", "utc": "1963-05-25T18:59:05Z", "ms": -208414855343.4343 }, "end": { "local": "1963-05-26T13:09:37-04:00", "utc": "1963-05-26T17:09:37Z", "ms": -208335022522.85217 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-25T14:59:05-04:00", "utc": "1963-05-25T18:59:05Z", "ms": -208414855343.4343 }, "end": { "local": "1963-05-26T13:09:37-04:00", "utc": "1963-05-26T17:09:37Z", "ms": -208335022522.85217 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-05-25", "window": { "start": { "local": "1963-05-25T12:50:37-04:00", "utc": "1963-05-25T16:50:37Z", "ms": -208422562843.01752 }, "end": { "local": "1963-05-25T13:38:37-04:00", "utc": "1963-05-25T17:38:37Z", "ms": -208419682843.01752 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-05-26", "window": { "start": { "local": "1963-05-26T12:50:43-04:00", "utc": "1963-05-26T16:50:43Z", "ms": -208336157176.9383 }, "end": { "local": "1963-05-26T13:38:43-04:00", "utc": "1963-05-26T17:38:43Z", "ms": -208333277176.9383 } }, "covered_min": 19, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:59 on Sat 25 May to 13:10 on Sun 26 May.", "fact": "1963-05-25T18:59:05Z → 1963-05-26T17:09:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 25th, 12:51–13:39 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 19 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1135 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Sunday 26 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-05-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-26", "confidence": "determinate" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Sunday 26 May. Caturthī runs from 14:59 on Sat 25 May to 13:10 on Sun 26 May and covers 19 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-05-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2672, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1963-05-27T12:06:17-04:00", "utc": "1963-05-27T16:06:17Z", "ms": -208252422829.06927 }, "end": { "local": "1963-05-28T11:51:17-04:00", "utc": "1963-05-28T15:51:17Z", "ms": -208166923138.29535 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-27T12:06:17-04:00", "utc": "1963-05-27T16:06:17Z", "ms": -208252422829.06927 }, "end": { "local": "1963-05-28T11:51:17-04:00", "utc": "1963-05-28T15:51:17Z", "ms": -208166923138.29535 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-05-27", "window": { "start": { "local": "1963-05-27T12:50:49-04:00", "utc": "1963-05-27T16:50:49Z", "ms": -208249751054.67758 }, "end": { "local": "1963-05-27T13:38:49-04:00", "utc": "1963-05-27T17:38:49Z", "ms": -208246871054.67758 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-05-28", "window": { "start": { "local": "1963-05-28T12:50:56-04:00", "utc": "1963-05-28T16:50:56Z", "ms": -208163344490.2627 }, "end": { "local": "1963-05-28T13:38:56-04:00", "utc": "1963-05-28T17:38:56Z", "ms": -208160464490.2627 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 12:06 on Mon 27 May to 11:51 on Tue 28 May.", "fact": "1963-05-27T16:06:17Z → 1963-05-28T15:51:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 27th, 12:51–13:39 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2672 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Toronto, 1963: Monday 27 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": "1963-05-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-28", "confidence": "determinate" } ], "quote": "In Toronto, Araṇya Gaurī Vrata 1963 falls on Monday 27 May. Ṣaṣṭhī runs from 12:06 on Mon 27 May to 11:51 on Tue 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-05-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2672, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1963-05-27T12:06:17-04:00", "utc": "1963-05-27T16:06:17Z", "ms": -208252422829.06927 }, "end": { "local": "1963-05-28T11:51:17-04:00", "utc": "1963-05-28T15:51:17Z", "ms": -208166923138.29535 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-05-27T12:06:17-04:00", "utc": "1963-05-27T16:06:17Z", "ms": -208252422829.06927 }, "end": { "local": "1963-05-28T11:51:17-04:00", "utc": "1963-05-28T15:51:17Z", "ms": -208166923138.29535 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-05-27", "window": { "start": { "local": "1963-05-27T12:50:49-04:00", "utc": "1963-05-27T16:50:49Z", "ms": -208249751054.67758 }, "end": { "local": "1963-05-27T13:38:49-04:00", "utc": "1963-05-27T17:38:49Z", "ms": -208246871054.67758 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-05-28", "window": { "start": { "local": "1963-05-28T12:50:56-04:00", "utc": "1963-05-28T16:50:56Z", "ms": -208163344490.2627 }, "end": { "local": "1963-05-28T13:38:56-04:00", "utc": "1963-05-28T17:38:56Z", "ms": -208160464490.2627 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 12:06 on Mon 27 May to 11:51 on Tue 28 May.", "fact": "1963-05-27T16:06:17Z → 1963-05-28T15:51:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 27th, 12:51–13:39 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2672 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Toronto, 1963: Monday 27 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": "1963-05-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-05-27", "confidence": "determinate" } ], "quote": "In Toronto, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1963 falls on Monday 27 May. Ṣaṣṭhī runs from 12:06 on Mon 27 May to 11:51 on Tue 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-06-02", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34959, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-06-01T17:33:50-04:00", "utc": "1963-06-01T21:33:50Z", "ms": -207800769955.25314 }, "end": { "local": "1963-06-02T19:55:52-04:00", "utc": "1963-06-02T23:55:52Z", "ms": -207705848393.80392 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-01T17:33:50-04:00", "utc": "1963-06-01T21:33:50Z", "ms": -207800769955.25314 }, "end": { "local": "1963-06-02T19:55:52-04:00", "utc": "1963-06-02T23:55:52Z", "ms": -207705848393.80392 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-06-02", "window": { "start": { "local": "1963-06-02T05:38:59-04:00", "utc": "1963-06-02T09:38:59Z", "ms": -207757260690.24847 }, "end": { "local": "1963-06-02T05:38:59-04:00", "utc": "1963-06-02T09:38:59Z", "ms": -207757260690.24847 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-06-03", "window": { "start": { "local": "1963-06-03T05:38:30-04:00", "utc": "1963-06-03T09:38:30Z", "ms": -207670889551.4474 }, "end": { "local": "1963-06-03T05:38:30-04:00", "utc": "1963-06-03T09:38:30Z", "ms": -207670889551.4474 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-06-03", "start": { "local": "1963-06-03T05:38:30-04:00", "utc": "1963-06-03T09:38:30Z", "ms": -207670889551.4474 }, "end": { "local": "1963-06-03T08:41:24-04:00", "utc": "1963-06-03T12:41:24Z", "ms": -207659916362.82477 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-06-03T22:19:50-04:00", "utc": "1963-06-04T02:19:50Z", "ms": -207610810045.4359 }, "hari_vasara_end": { "local": "1963-06-03T02:31:51-04:00", "utc": "1963-06-03T06:31:51Z", "ms": -207682088806.7119 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:34 on Sat 1 Jun to 19:56 on Sun 2 Jun.", "fact": "1963-06-01T21:33:50Z → 1963-06-02T23:55:52Z" }, { "step": "kaala", "text": "Sunrise is at 05:39 on the 2nd and 05:39 on the 3rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 2nd and is not on the 3rd.", "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 34959 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Toronto, 1963: Sunday 2 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-02", "confidence": "determinate" } ], "quote": "In Toronto, Nirjalā Ekādaśī 1963 falls on Sunday 2 June. Ekādaśī runs from 17:34 on Sat 1 Jun to 19:56 on Sun 2 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-06-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22577, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1963-06-02T19:55:52-04:00", "utc": "1963-06-02T23:55:52Z", "ms": -207705848393.80392 }, "end": { "local": "1963-06-03T22:19:50-04:00", "utc": "1963-06-04T02:19:50Z", "ms": -207610810045.4359 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-02T19:55:52-04:00", "utc": "1963-06-02T23:55:52Z", "ms": -207705848393.80392 }, "end": { "local": "1963-06-03T22:19:50-04:00", "utc": "1963-06-04T02:19:50Z", "ms": -207610810045.4359 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-06-02", "window": { "start": { "local": "1963-06-02T12:51:34-04:00", "utc": "1963-06-02T16:51:34Z", "ms": -207731305511.23572 }, "end": { "local": "1963-06-02T13:39:34-04:00", "utc": "1963-06-02T17:39:34Z", "ms": -207728425511.23572 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-06-03", "window": { "start": { "local": "1963-06-03T12:51:43-04:00", "utc": "1963-06-03T16:51:43Z", "ms": -207644896579.8908 }, "end": { "local": "1963-06-03T13:39:43-04:00", "utc": "1963-06-03T17:39:43Z", "ms": -207642016579.8908 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 19:56 on Sun 2 Jun to 22:20 on Mon 3 Jun.", "fact": "1963-06-02T23:55:52Z → 1963-06-04T02:19:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:52–13:40 on the 2nd, 12:52–13:40 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 22577 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Toronto, 1963: Monday 3 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-06-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-03", "confidence": "determinate" } ], "quote": "In Toronto, Śrī Rāma Dvādaśī 1963 falls on Monday 3 June. Dvādaśī runs from 19:56 on Sun 2 Jun to 22:20 on Mon 3 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/pradosha-vrata?on=1963-06-04", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1013, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-06-03T22:19:50-04:00", "utc": "1963-06-04T02:19:50Z", "ms": -207610810045.4359 }, "end": { "local": "1963-06-05T00:37:27-04:00", "utc": "1963-06-05T04:37:27Z", "ms": -207516152951.90985 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-03T22:19:50-04:00", "utc": "1963-06-04T02:19:50Z", "ms": -207610810045.4359 }, "end": { "local": "1963-06-05T00:37:27-04:00", "utc": "1963-06-05T04:37:27Z", "ms": -207516152951.90985 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-06-03", "window": { "start": { "local": "1963-06-03T20:52:56-04:00", "utc": "1963-06-04T00:52:56Z", "ms": -207616023608.33426 }, "end": { "local": "1963-06-03T22:02:57-04:00", "utc": "1963-06-04T02:02:57Z", "ms": -207611822627.66403 } }, "covered_min": 0, "window_min": 70, "qualifies": false }, { "local_date": "1963-06-04", "window": { "start": { "local": "1963-06-04T20:53:42-04:00", "utc": "1963-06-05T00:53:42Z", "ms": -207529578352.6016 }, "end": { "local": "1963-06-04T22:03:33-04:00", "utc": "1963-06-05T02:03:33Z", "ms": -207525386676.5969 } }, "covered_min": 70, "window_min": 70, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:20 on Mon 3 Jun to 00:37 on Wed 5 Jun.", "fact": "1963-06-04T02:19:50Z → 1963-06-05T04:37:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:53–22:03 on the 3rd, 20:54–22:04 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 70 minutes on the 3rd and 70 of 70 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1013 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Tuesday 4 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": "1963-06-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-04", "confidence": "boundary" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Tuesday 4 June. Trayodaśī runs from 22:20 on Mon 3 Jun to 00:37 on Wed 5 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-06-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16702, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-06-06T02:42:30-04:00", "utc": "1963-06-06T06:42:30Z", "ms": -207422250238.20483 }, "end": { "local": "1963-06-07T04:30:35-04:00", "utc": "1963-06-07T08:30:35Z", "ms": -207329364756.22104 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-06T02:42:30-04:00", "utc": "1963-06-06T06:42:30Z", "ms": -207422250238.20483 }, "end": { "local": "1963-06-07T04:30:35-04:00", "utc": "1963-06-07T08:30:35Z", "ms": -207329364756.22104 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-06-05", "window": { "start": { "local": "1963-06-05T20:54:25-04:00", "utc": "1963-06-06T00:54:25Z", "ms": -207443134607.5794 }, "end": { "local": "1963-06-05T22:04:08-04:00", "utc": "1963-06-06T02:04:08Z", "ms": -207438951743.5613 } }, "covered_min": 0, "window_min": 70, "qualifies": false }, { "local_date": "1963-06-06", "window": { "start": { "local": "1963-06-06T20:55:08-04:00", "utc": "1963-06-07T00:55:08Z", "ms": -207356692414.91653 }, "end": { "local": "1963-06-06T22:04:42-04:00", "utc": "1963-06-07T02:04:42Z", "ms": -207352517863.28473 } }, "covered_min": 70, "window_min": 70, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 02:42 on Thu 6 Jun to 04:31 on Fri 7 Jun.", "fact": "1963-06-06T06:42:30Z → 1963-06-07T08:30:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:54–22:04 on the 5th, 20:55–22:05 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 70 minutes on the 5th and 70 of 70 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16702 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Toronto, 1963: Thursday 6 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": "1963-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-06", "confidence": "determinate" } ], "quote": "In Toronto, Vaṭa Sāvitrī Vrata 1963 falls on Thursday 6 June. Pūrṇimā runs from 02:42 on Thu 6 Jun to 04:31 on Fri 7 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-06-10", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29163, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-06-10T07:45:06-04:00", "utc": "1963-06-10T11:45:06Z", "ms": -207058494188.6228 }, "end": { "local": "1963-06-11T07:59:09-04:00", "utc": "1963-06-11T11:59:09Z", "ms": -206971250857.73138 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-10T07:45:06-04:00", "utc": "1963-06-10T11:45:06Z", "ms": -207058494188.6228 }, "end": { "local": "1963-06-11T07:59:09-04:00", "utc": "1963-06-11T11:59:09Z", "ms": -206971250857.73138 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-06-09", "window": { "start": { "local": "1963-06-09T23:07:12-04:00", "utc": "1963-06-10T03:07:12Z", "ms": -207089568104.8767 }, "end": { "local": "1963-06-09T23:07:12-04:00", "utc": "1963-06-10T03:07:12Z", "ms": -207089568104.8767 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-06-10", "window": { "start": { "local": "1963-06-10T23:53:06-04:00", "utc": "1963-06-11T03:53:06Z", "ms": -207000413806.7165 }, "end": { "local": "1963-06-10T23:53:06-04:00", "utc": "1963-06-11T03:53:06Z", "ms": -207000413806.7165 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:45 on Mon 10 Jun to 07:59 on Tue 11 Jun.", "fact": "1963-06-10T11:45:06Z → 1963-06-11T11:59:09Z" }, { "step": "kaala", "text": "Moonrise is at 23:07 on the 9th and 23:53 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 9th and is on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29163 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Monday 10 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": "1963-06-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-10", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Monday 10 June. Caturthī runs from 07:45 on Mon 10 Jun to 07:59 on Tue 11 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-06-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-06-17", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23559, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-06-16T23:02:58-04:00", "utc": "1963-06-17T03:02:58Z", "ms": -206485022075.13535 }, "end": { "local": "1963-06-17T20:06:03-04:00", "utc": "1963-06-18T00:06:03Z", "ms": -206409237078.20416 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-16T23:02:58-04:00", "utc": "1963-06-17T03:02:58Z", "ms": -206485022075.13535 }, "end": { "local": "1963-06-17T20:06:03-04:00", "utc": "1963-06-18T00:06:03Z", "ms": -206409237078.20416 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-06-17", "window": { "start": { "local": "1963-06-17T05:35:37-04:00", "utc": "1963-06-17T09:35:37Z", "ms": -206461463026.19894 }, "end": { "local": "1963-06-17T05:35:37-04:00", "utc": "1963-06-17T09:35:37Z", "ms": -206461463026.19894 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-06-18", "window": { "start": { "local": "1963-06-18T05:35:41-04:00", "utc": "1963-06-18T09:35:41Z", "ms": -206375058872.97842 }, "end": { "local": "1963-06-18T05:35:41-04:00", "utc": "1963-06-18T09:35:41Z", "ms": -206375058872.97842 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-06-18", "start": { "local": "1963-06-18T05:35:41-04:00", "utc": "1963-06-18T09:35:41Z", "ms": -206375058872.97842 }, "end": { "local": "1963-06-18T08:40:49-04:00", "utc": "1963-06-18T12:40:49Z", "ms": -206363951365.09927 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-06-18T16:57:41-04:00", "utc": "1963-06-18T20:57:41Z", "ms": -206334139011.3277 }, "hari_vasara_end": { "local": "1963-06-18T01:18:57-04:00", "utc": "1963-06-18T05:18:57Z", "ms": -206390462561.48505 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:03 on Sun 16 Jun to 20:06 on Mon 17 Jun.", "fact": "1963-06-17T03:02:58Z → 1963-06-18T00:06:03Z" }, { "step": "kaala", "text": "Sunrise is at 05:36 on the 17th and 05:36 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 17th and is not on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23559 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Toronto, 1963: Monday 17 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-06-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-17", "confidence": "determinate" } ], "quote": "In Toronto, Yoginī Ekādaśī 1963 falls on Monday 17 June. Ekādaśī runs from 23:03 on Sun 16 Jun to 20:06 on Mon 17 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-06-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-06-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14618, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-06-18T16:57:41-04:00", "utc": "1963-06-18T20:57:41Z", "ms": -206334139011.3277 }, "end": { "local": "1963-06-19T13:45:46-04:00", "utc": "1963-06-19T17:45:46Z", "ms": -206259253914.4095 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-18T16:57:41-04:00", "utc": "1963-06-18T20:57:41Z", "ms": -206334139011.3277 }, "end": { "local": "1963-06-19T13:45:46-04:00", "utc": "1963-06-19T17:45:46Z", "ms": -206259253914.4095 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-06-18", "window": { "start": { "local": "1963-06-18T21:01:19-04:00", "utc": "1963-06-19T01:01:19Z", "ms": -206319521333.5827 }, "end": { "local": "1963-06-18T22:09:55-04:00", "utc": "1963-06-19T02:09:55Z", "ms": -206315405497.17416 } }, "covered_min": 69, "window_min": 69, "qualifies": true }, { "local_date": "1963-06-19", "window": { "start": { "local": "1963-06-19T21:01:37-04:00", "utc": "1963-06-20T01:01:37Z", "ms": -206233102790.21277 }, "end": { "local": "1963-06-19T22:10:12-04:00", "utc": "1963-06-20T02:10:12Z", "ms": -206228988299.71603 } }, "covered_min": 0, "window_min": 69, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:58 on Tue 18 Jun to 13:46 on Wed 19 Jun.", "fact": "1963-06-18T20:57:41Z → 1963-06-19T17:45:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 21:01–22:10 on the 18th, 21:02–22:10 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 69 of 69 minutes on the 18th and 0 of 69 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14618 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Tuesday 18 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": "1963-06-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-18", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Tuesday 18 June. Trayodaśī runs from 16:58 on Tue 18 Jun to 13:46 on Wed 19 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-06-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-06-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32164, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-06-19T13:45:46-04:00", "utc": "1963-06-19T17:45:46Z", "ms": -206259253914.4095 }, "end": { "local": "1963-06-20T10:38:51-04:00", "utc": "1963-06-20T14:38:51Z", "ms": -206184069350.03943 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-19T13:45:46-04:00", "utc": "1963-06-19T17:45:46Z", "ms": -206259253914.4095 }, "end": { "local": "1963-06-20T10:38:51-04:00", "utc": "1963-06-20T14:38:51Z", "ms": -206184069350.03943 } }, "kaala": "nishita", "days": [ { "local_date": "1963-06-18", "window": { "start": { "local": "1963-06-19T00:54:33-04:00", "utc": "1963-06-19T04:54:33Z", "ms": -206305526947.05066 }, "end": { "local": "1963-06-19T01:42:33-04:00", "utc": "1963-06-19T05:42:33Z", "ms": -206302646947.05066 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-06-19", "window": { "start": { "local": "1963-06-20T00:54:47-04:00", "utc": "1963-06-20T04:54:47Z", "ms": -206219113450.85004 }, "end": { "local": "1963-06-20T01:42:47-04:00", "utc": "1963-06-20T05:42:47Z", "ms": -206216233450.85004 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:46 on Wed 19 Jun to 10:39 on Thu 20 Jun.", "fact": "1963-06-19T17:45:46Z → 1963-06-20T14:38:51Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:55–01:43 on the 18th, 00:55–01:43 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 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32164 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Wednesday 19 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-06-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-19", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Wednesday 19 June. Caturdaśī runs from 13:46 on Wed 19 Jun to 10:39 on Thu 20 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-06-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27616, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1963-06-22T05:15:04-04:00", "utc": "1963-06-22T09:15:04Z", "ms": -206030695826.04773 }, "end": { "local": "1963-06-23T03:14:56-04:00", "utc": "1963-06-23T07:14:56Z", "ms": -205951503998.77124 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-22T05:15:04-04:00", "utc": "1963-06-22T09:15:04Z", "ms": -206030695826.04773 }, "end": { "local": "1963-06-23T03:14:56-04:00", "utc": "1963-06-23T07:14:56Z", "ms": -205951503998.77124 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-06-22", "window": { "start": { "local": "1963-06-22T12:55:20-04:00", "utc": "1963-06-22T16:55:20Z", "ms": -206003080294.56375 }, "end": { "local": "1963-06-22T13:43:20-04:00", "utc": "1963-06-22T17:43:20Z", "ms": -206000200294.56375 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-06-23", "window": { "start": { "local": "1963-06-23T12:55:32-04:00", "utc": "1963-06-23T16:55:32Z", "ms": -205916667897.80157 }, "end": { "local": "1963-06-23T13:43:32-04:00", "utc": "1963-06-23T17:43:32Z", "ms": -205913787897.80157 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 05:15 on Sat 22 Jun to 03:15 on Sun 23 Jun.", "fact": "1963-06-22T09:15:04Z → 1963-06-23T07:14:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:55–13:43 on the 22nd, 12:56–13:44 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 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 27616 s" }, { "step": "ruling", "text": "Rathayātrā, Toronto, 1963: Saturday 22 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-06-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-22", "confidence": "determinate" } ], "quote": "In Toronto, Rathayātrā 1963 falls on Saturday 22 June. Dvitīyā runs from 05:15 on Sat 22 Jun to 03:15 on Sun 23 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-06-24", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39816, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-06-24T01:52:09-04:00", "utc": "1963-06-24T05:52:09Z", "ms": -205870071407.19492 }, "end": { "local": "1963-06-25T01:11:37-04:00", "utc": "1963-06-25T05:11:37Z", "ms": -205786103350.54984 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-24T01:52:09-04:00", "utc": "1963-06-24T05:52:09Z", "ms": -205870071407.19492 }, "end": { "local": "1963-06-25T01:11:37-04:00", "utc": "1963-06-25T05:11:37Z", "ms": -205786103350.54984 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-06-24", "window": { "start": { "local": "1963-06-24T12:55:44-04:00", "utc": "1963-06-24T16:55:44Z", "ms": -205830255579.3838 }, "end": { "local": "1963-06-24T13:43:44-04:00", "utc": "1963-06-24T17:43:44Z", "ms": -205827375579.3838 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-06-25", "window": { "start": { "local": "1963-06-25T12:55:57-04:00", "utc": "1963-06-25T16:55:57Z", "ms": -205743843365.58664 }, "end": { "local": "1963-06-25T13:43:57-04:00", "utc": "1963-06-25T17:43:57Z", "ms": -205740963365.58664 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:52 on Mon 24 Jun to 01:12 on Tue 25 Jun.", "fact": "1963-06-24T05:52:09Z → 1963-06-25T05:11:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:56–13:44 on the 24th, 12:56–13:44 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 39816 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Monday 24 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-06-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-24", "confidence": "determinate" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Monday 24 June. Caturthī runs from 01:52 on Mon 24 Jun to 01:12 on Tue 25 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-06-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 41272, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1963-06-25T01:11:37-04:00", "utc": "1963-06-25T05:11:37Z", "ms": -205786103350.54984 }, "end": { "local": "1963-06-26T01:15:34-04:00", "utc": "1963-06-26T05:15:34Z", "ms": -205699466066.85065 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-25T01:11:37-04:00", "utc": "1963-06-25T05:11:37Z", "ms": -205786103350.54984 }, "end": { "local": "1963-06-26T01:15:34-04:00", "utc": "1963-06-26T05:15:34Z", "ms": -205699466066.85065 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-06-24", "window": { "start": { "local": "1963-06-24T12:55:44-04:00", "utc": "1963-06-24T16:55:44Z", "ms": -205830255579.3838 }, "end": { "local": "1963-06-24T13:43:44-04:00", "utc": "1963-06-24T17:43:44Z", "ms": -205827375579.3838 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-06-25", "window": { "start": { "local": "1963-06-25T12:55:57-04:00", "utc": "1963-06-25T16:55:57Z", "ms": -205743843365.58664 }, "end": { "local": "1963-06-25T13:43:57-04:00", "utc": "1963-06-25T17:43:57Z", "ms": -205740963365.58664 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:12 on Tue 25 Jun to 01:16 on Wed 26 Jun.", "fact": "1963-06-25T05:11:37Z → 1963-06-26T05:15:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:56–13:44 on the 24th, 12:56–13:44 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 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 41272 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Toronto, 1963: Tuesday 25 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-06-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-25", "confidence": "determinate" } ], "quote": "In Toronto, Skanda Pañcamī 1963 falls on Tuesday 25 June. Pañcamī runs from 01:12 on Tue 25 Jun to 01:16 on Wed 26 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-06-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34072, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1963-06-27T02:02:52-04:00", "utc": "1963-06-27T06:02:52Z", "ms": -205610227541.00983 }, "end": { "local": "1963-06-28T03:28:40-04:00", "utc": "1963-06-28T07:28:40Z", "ms": -205518679504.21643 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-06-27T02:02:52-04:00", "utc": "1963-06-27T06:02:52Z", "ms": -205610227541.00983 }, "end": { "local": "1963-06-28T03:28:40-04:00", "utc": "1963-06-28T07:28:40Z", "ms": -205518679504.21643 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-06-27", "window": { "start": { "local": "1963-06-27T12:56:21-04:00", "utc": "1963-06-27T16:56:21Z", "ms": -205571019350.7367 }, "end": { "local": "1963-06-27T13:44:21-04:00", "utc": "1963-06-27T17:44:21Z", "ms": -205568139350.7367 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-06-28", "window": { "start": { "local": "1963-06-28T12:56:32-04:00", "utc": "1963-06-28T16:56:32Z", "ms": -205484607596.35864 }, "end": { "local": "1963-06-28T13:44:32-04:00", "utc": "1963-06-28T17:44:32Z", "ms": -205481727596.35864 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:03 on Thu 27 Jun to 03:29 on Fri 28 Jun.", "fact": "1963-06-27T06:02:52Z → 1963-06-28T07:28:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:56–13:44 on the 27th, 12:57–13:45 on the 28th.", "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 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 34072 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Toronto, 1963: Thursday 27 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-06-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-06-27", "confidence": "determinate" } ], "quote": "In Toronto, Vivasvat Saptamī 1963 falls on Thursday 27 June. Saptamī runs from 02:03 on Thu 27 Jun to 03:29 on Fri 28 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-07-02", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15693, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-07-01T10:01:15-04:00", "utc": "1963-07-01T14:01:15Z", "ms": -205235925221.3904 }, "end": { "local": "1963-07-02T12:17:58-04:00", "utc": "1963-07-02T16:17:58Z", "ms": -205141321541.71527 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-07-01T10:01:15-04:00", "utc": "1963-07-01T14:01:15Z", "ms": -205235925221.3904 }, "end": { "local": "1963-07-02T12:17:58-04:00", "utc": "1963-07-02T16:17:58Z", "ms": -205141321541.71527 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-07-01", "window": { "start": { "local": "1963-07-01T05:39:42-04:00", "utc": "1963-07-01T09:39:42Z", "ms": -205251618419.00064 }, "end": { "local": "1963-07-01T05:39:42-04:00", "utc": "1963-07-01T09:39:42Z", "ms": -205251618419.00064 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-07-02", "window": { "start": { "local": "1963-07-02T05:40:13-04:00", "utc": "1963-07-02T09:40:13Z", "ms": -205165186685.5311 }, "end": { "local": "1963-07-02T05:40:13-04:00", "utc": "1963-07-02T09:40:13Z", "ms": -205165186685.5311 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-07-03", "start": { "local": "1963-07-03T05:40:47-04:00", "utc": "1963-07-03T09:40:47Z", "ms": -205078753240.99142 }, "end": { "local": "1963-07-03T08:45:03-04:00", "utc": "1963-07-03T12:45:03Z", "ms": -205067696827.2099 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-07-03T14:19:43-04:00", "utc": "1963-07-03T18:19:43Z", "ms": -205047616563.6693 }, "hari_vasara_end": { "local": "1963-07-02T18:48:25-04:00", "utc": "1963-07-02T22:48:25Z", "ms": -205117895297.2038 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:01 on Mon 1 Jul to 12:18 on Tue 2 Jul.", "fact": "1963-07-01T14:01:15Z → 1963-07-02T16:17:58Z" }, { "step": "kaala", "text": "Sunrise is at 05:40 on the 1st and 05:40 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 1st and is on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15693 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Toronto, 1963: Tuesday 2 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": "1963-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-02", "confidence": "determinate" } ], "quote": "In Toronto, Hariśayanī Ekādaśī 1963 falls on Tuesday 2 July. Ekādaśī runs from 10:01 on Mon 1 Jul to 12:18 on Tue 2 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-07-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-07-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18165, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-07-03T14:19:43-04:00", "utc": "1963-07-03T18:19:43Z", "ms": -205047616563.6693 }, "end": { "local": "1963-07-04T15:59:10-04:00", "utc": "1963-07-04T19:59:10Z", "ms": -204955250407.12753 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-07-03T14:19:43-04:00", "utc": "1963-07-03T18:19:43Z", "ms": -205047616563.6693 }, "end": { "local": "1963-07-04T15:59:10-04:00", "utc": "1963-07-04T19:59:10Z", "ms": -204955250407.12753 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-07-03", "window": { "start": { "local": "1963-07-03T21:02:09-04:00", "utc": "1963-07-04T01:02:09Z", "ms": -205023471172.08383 }, "end": { "local": "1963-07-03T22:11:23-04:00", "utc": "1963-07-04T02:11:23Z", "ms": -205019317432.4988 } }, "covered_min": 69, "window_min": 69, "qualifies": true }, { "local_date": "1963-07-04", "window": { "start": { "local": "1963-07-04T21:01:54-04:00", "utc": "1963-07-05T01:01:54Z", "ms": -204937085756.55518 }, "end": { "local": "1963-07-04T22:11:15-04:00", "utc": "1963-07-05T02:11:15Z", "ms": -204932925172.8194 } }, "covered_min": 0, "window_min": 69, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:20 on Wed 3 Jul to 15:59 on Thu 4 Jul.", "fact": "1963-07-03T18:19:43Z → 1963-07-04T19:59:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 21:02–22:11 on the 3rd, 21:02–22:11 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 69 of 69 minutes on the 3rd and 0 of 69 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18165 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Wednesday 3 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": "1963-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-03", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Wednesday 3 July. Trayodaśī runs from 14:20 on Wed 3 Jul to 15:59 on Thu 4 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-07-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-05", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 130, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-07-05T17:11:45-04:00", "utc": "1963-07-05T21:11:45Z", "ms": -204864495447.95636 }, "end": { "local": "1963-07-06T17:55:24-04:00", "utc": "1963-07-06T21:55:24Z", "ms": -204775476015.29388 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-07-05T17:11:45-04:00", "utc": "1963-07-05T21:11:45Z", "ms": -204864495447.95636 }, "end": { "local": "1963-07-06T17:55:24-04:00", "utc": "1963-07-06T21:55:24Z", "ms": -204775476015.29388 } }, "kaala": "sayahna", "days": [ { "local_date": "1963-07-05", "window": { "start": { "local": "1963-07-05T17:57:42-04:00", "utc": "1963-07-05T21:57:42Z", "ms": -204861738352.61987 }, "end": { "local": "1963-07-05T21:01:37-04:00", "utc": "1963-07-06T01:01:37Z", "ms": -204850702596.14062 } }, "covered_min": 184, "window_min": 184, "qualifies": true }, { "local_date": "1963-07-06", "window": { "start": { "local": "1963-07-06T17:57:34-04:00", "utc": "1963-07-06T21:57:34Z", "ms": -204775345953.98788 }, "end": { "local": "1963-07-06T21:01:18-04:00", "utc": "1963-07-07T01:01:18Z", "ms": -204764321682.02878 } }, "covered_min": 0, "window_min": 184, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:12 on Fri 5 Jul to 17:55 on Sat 6 Jul.", "fact": "1963-07-05T21:11:45Z → 1963-07-06T21:55:24Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:58–21:02 on the 5th, 17:58–21:01 on the 6th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 184 of 184 minutes on the 5th and 0 of 184 on the 6th.", "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 130 s < 300 s" }, { "step": "ruling", "text": "Kokilā Vrata, Toronto, 1963: Friday 5 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": "1963-07-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-05", "confidence": "boundary" } ], "quote": "In Toronto, Kokilā Vrata 1963 falls on Friday 5 July. Pūrṇimā runs from 17:12 on Fri 5 Jul to 17:55 on Sat 6 Jul and covers all of sāyāhna that late afternoon. It is 2 min 10 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11154, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-07-05T17:11:45-04:00", "utc": "1963-07-05T21:11:45Z", "ms": -204864495447.95636 }, "end": { "local": "1963-07-06T17:55:24-04:00", "utc": "1963-07-06T21:55:24Z", "ms": -204775476015.29388 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-07-05T17:11:45-04:00", "utc": "1963-07-05T21:11:45Z", "ms": -204864495447.95636 }, "end": { "local": "1963-07-06T17:55:24-04:00", "utc": "1963-07-06T21:55:24Z", "ms": -204775476015.29388 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-07-05", "window": { "start": { "local": "1963-07-05T21:01:37-04:00", "utc": "1963-07-06T01:01:37Z", "ms": -204850702596.14062 }, "end": { "local": "1963-07-05T22:11:05-04:00", "utc": "1963-07-06T02:11:05Z", "ms": -204846534655.56512 } }, "covered_min": 69, "window_min": 69, "qualifies": true }, { "local_date": "1963-07-06", "window": { "start": { "local": "1963-07-06T21:01:18-04:00", "utc": "1963-07-07T01:01:18Z", "ms": -204764321682.02878 }, "end": { "local": "1963-07-06T22:10:54-04:00", "utc": "1963-07-07T02:10:54Z", "ms": -204760145878.57663 } }, "covered_min": 0, "window_min": 70, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:12 on Fri 5 Jul to 17:55 on Sat 6 Jul.", "fact": "1963-07-05T21:11:45Z → 1963-07-06T21:55:24Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 21:02–22:11 on the 5th, 21:01–22:11 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 69 of 69 minutes on the 5th and 0 of 70 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11154 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Toronto, 1963: Friday 5 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": "1963-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-05", "confidence": "determinate" } ], "quote": "In Toronto, Śiva Śayanotsava 1963 falls on Friday 5 July. Pūrṇimā runs from 17:12 on Fri 5 Jul to 17:55 on Sat 6 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30350, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-07-05T17:11:45-04:00", "utc": "1963-07-05T21:11:45Z", "ms": -204864495447.95636 }, "end": { "local": "1963-07-06T17:55:24-04:00", "utc": "1963-07-06T21:55:24Z", "ms": -204775476015.29388 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-07-05T17:11:45-04:00", "utc": "1963-07-05T21:11:45Z", "ms": -204864495447.95636 }, "end": { "local": "1963-07-06T17:55:24-04:00", "utc": "1963-07-06T21:55:24Z", "ms": -204775476015.29388 } }, "kaala": "udaya-3", "days": [ { "local_date": "1963-07-05", "window": { "start": { "local": "1963-07-05T05:41:59-04:00", "utc": "1963-07-05T09:41:59Z", "ms": -204905881378.53693 }, "end": { "local": "1963-07-05T08:45:54-04:00", "utc": "1963-07-05T12:45:54Z", "ms": -204894845622.05768 } }, "covered_min": 0, "window_min": 184, "qualifies": false }, { "local_date": "1963-07-06", "window": { "start": { "local": "1963-07-06T05:42:37-04:00", "utc": "1963-07-06T09:42:37Z", "ms": -204819443041.82428 }, "end": { "local": "1963-07-06T08:46:21-04:00", "utc": "1963-07-06T12:46:21Z", "ms": -204808418769.86517 } }, "covered_min": 184, "window_min": 184, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:12 on Fri 5 Jul to 17:55 on Sat 6 Jul.", "fact": "1963-07-05T21:11:45Z → 1963-07-06T21:55:24Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:42–08:46 on the 5th, 05:43–08:46 on the 6th.", "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 184 minutes on the 5th and 184 of 184 on the 6th.", "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 30350 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Toronto, 1963: Saturday 6 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": "1963-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-06", "confidence": "determinate" } ], "quote": "In Toronto, Vyāsa Pūjā 1963 falls on Saturday 6 July. Pūrṇimā runs from 17:12 on Fri 5 Jul to 17:55 on Sat 6 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12357, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-07-05T17:11:45-04:00", "utc": "1963-07-05T21:11:45Z", "ms": -204864495447.95636 }, "end": { "local": "1963-07-06T17:55:24-04:00", "utc": "1963-07-06T21:55:24Z", "ms": -204775476015.29388 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1963-07-05T17:11:45-04:00", "utc": "1963-07-05T21:11:45Z", "ms": -204864495447.95636 }, "end": { "local": "1963-07-06T17:55:24-04:00", "utc": "1963-07-06T21:55:24Z", "ms": -204775476015.29388 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-07-05", "window": { "start": { "local": "1963-07-05T12:57:48-04:00", "utc": "1963-07-05T16:57:48Z", "ms": -204879731987.33878 }, "end": { "local": "1963-07-05T13:45:48-04:00", "utc": "1963-07-05T17:45:48Z", "ms": -204876851987.33878 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-07-06", "window": { "start": { "local": "1963-07-06T12:57:58-04:00", "utc": "1963-07-06T16:57:58Z", "ms": -204793322361.9265 }, "end": { "local": "1963-07-06T13:45:58-04:00", "utc": "1963-07-06T17:45:58Z", "ms": -204790442361.9265 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:12 on Fri 5 Jul to 17:55 on Sat 6 Jul.", "fact": "1963-07-05T21:11:45Z → 1963-07-06T21:55:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:58–13:46 on the 5th, 12:58–13:46 on the 6th.", "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 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12357 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Toronto, 1963: Saturday 6 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "guru-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-06", "confidence": "determinate" } ], "quote": "In Toronto, Guru Pūrṇimā 1963 falls on Saturday 6 July. Pūrṇimā runs from 17:12 on Fri 5 Jul to 17:55 on Sat 6 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13267, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1963-07-07T18:09:57-04:00", "utc": "1963-07-07T22:09:57Z", "ms": -204688203133.3942 }, "end": { "local": "1963-07-08T17:56:28-04:00", "utc": "1963-07-08T21:56:28Z", "ms": -204602611680.0288 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-07T18:09:57-04:00", "utc": "1963-07-07T22:09:57Z", "ms": -204688203133.3942 }, "end": { "local": "1963-07-08T17:56:28-04:00", "utc": "1963-07-08T21:56:28Z", "ms": -204602611680.0288 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-07-07", "window": { "start": { "local": "1963-07-07T21:51:04-04:00", "utc": "1963-07-08T01:51:04Z", "ms": -204674935681.6716 }, "end": { "local": "1963-07-07T21:51:04-04:00", "utc": "1963-07-08T01:51:04Z", "ms": -204674935681.6716 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-07-08", "window": { "start": { "local": "1963-07-08T22:33:54-04:00", "utc": "1963-07-09T02:33:54Z", "ms": -204585965823.56622 }, "end": { "local": "1963-07-08T22:33:54-04:00", "utc": "1963-07-09T02:33:54Z", "ms": -204585965823.56622 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 18:10 on Sun 7 Jul to 17:56 on Mon 8 Jul.", "fact": "1963-07-07T22:09:57Z → 1963-07-08T21:56:28Z" }, { "step": "kaala", "text": "Moonrise is at 21:51 on the 7th and 22:34 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā 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. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13267 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Toronto, 1963: Sunday 7 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ashunya-shayana-vrata-ashadha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 2 Asunya sayana vrata (candrodaya vyapini; purvahna vyapini and purvaviddha in Bengal)." } ], "not_evaluated": "In Bengal the row reads pūrvāhṇa and pūrvaviddha; that reading is not applied.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-07", "confidence": "determinate" } ], "quote": "In Toronto, Aśūnya Śayana Vrata (Āṣāḍha) 1963 falls on Sunday 7 July. Dvitīyā runs from 18:10 on Sun 7 Jul to 17:56 on Mon 8 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-07-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21270, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-07-09T17:16:48-04:00", "utc": "1963-07-09T21:16:48Z", "ms": -204518591854.34433 }, "end": { "local": "1963-07-10T16:13:09-04:00", "utc": "1963-07-10T20:13:09Z", "ms": -204436011253.61984 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-09T17:16:48-04:00", "utc": "1963-07-09T21:16:48Z", "ms": -204518591854.34433 }, "end": { "local": "1963-07-10T16:13:09-04:00", "utc": "1963-07-10T20:13:09Z", "ms": -204436011253.61984 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-07-09", "window": { "start": { "local": "1963-07-09T23:11:18-04:00", "utc": "1963-07-10T03:11:18Z", "ms": -204497322140.91483 }, "end": { "local": "1963-07-09T23:11:18-04:00", "utc": "1963-07-10T03:11:18Z", "ms": -204497322140.91483 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-07-10", "window": { "start": { "local": "1963-07-10T23:44:22-04:00", "utc": "1963-07-11T03:44:22Z", "ms": -204408937710.25714 }, "end": { "local": "1963-07-10T23:44:22-04:00", "utc": "1963-07-11T03:44:22Z", "ms": -204408937710.25714 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:17 on Tue 9 Jul to 16:13 on Wed 10 Jul.", "fact": "1963-07-09T21:16:48Z → 1963-07-10T20:13:09Z" }, { "step": "kaala", "text": "Moonrise is at 23:11 on the 9th and 23:44 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 9th and is not on the 10th.", "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 21270 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Tuesday 9 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-07-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-09", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Tuesday 9 July. Caturthī runs from 17:17 on Tue 9 Jul to 16:13 on Wed 10 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-07-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-07-16", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7019, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-07-16T03:53:20-04:00", "utc": "1963-07-16T07:53:20Z", "ms": -203962000126.50476 }, "end": { "local": "1963-07-17T01:20:55-04:00", "utc": "1963-07-17T05:20:55Z", "ms": -203884745326.5081 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-16T03:53:20-04:00", "utc": "1963-07-16T07:53:20Z", "ms": -203962000126.50476 }, "end": { "local": "1963-07-17T01:20:55-04:00", "utc": "1963-07-17T05:20:55Z", "ms": -203884745326.5081 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-07-16", "window": { "start": { "local": "1963-07-16T05:50:19-04:00", "utc": "1963-07-16T09:50:19Z", "ms": -203954981396.46982 }, "end": { "local": "1963-07-16T05:50:19-04:00", "utc": "1963-07-16T09:50:19Z", "ms": -203954981396.46982 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-07-17", "window": { "start": { "local": "1963-07-17T05:51:12-04:00", "utc": "1963-07-17T09:51:12Z", "ms": -203868528367.88876 }, "end": { "local": "1963-07-17T05:51:12-04:00", "utc": "1963-07-17T09:51:12Z", "ms": -203868528367.88876 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-07-17", "start": { "local": "1963-07-17T06:43:38-04:00", "utc": "1963-07-17T10:43:38Z", "ms": -203865381665.81415 }, "end": { "local": "1963-07-17T08:52:02-04:00", "utc": "1963-07-17T12:52:02Z", "ms": -203857677868.818 }, "basis": "hari-vasara", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-07-17T22:51:49-04:00", "utc": "1963-07-18T02:51:49Z", "ms": -203807290683.73233 }, "hari_vasara_end": { "local": "1963-07-17T06:43:38-04:00", "utc": "1963-07-17T10:43:38Z", "ms": -203865381665.81415 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:53 on Tue 16 Jul to 01:21 on Wed 17 Jul.", "fact": "1963-07-16T07:53:20Z → 1963-07-17T05:20:55Z" }, { "step": "kaala", "text": "Sunrise is at 05:50 on the 16th and 05:51 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 7019 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Toronto, 1963: Tuesday 16 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": "1963-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-16", "confidence": "determinate" } ], "quote": "In Toronto, Kāmikā Ekādaśī 1963 falls on Tuesday 16 July. Ekādaśī runs from 03:53 on Tue 16 Jul to 01:21 on Wed 17 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-07-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-07-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-17", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1377, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-07-17T22:51:49-04:00", "utc": "1963-07-18T02:51:49Z", "ms": -203807290683.73233 }, "end": { "local": "1963-07-18T20:31:42-04:00", "utc": "1963-07-19T00:31:42Z", "ms": -203729298108.40277 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-17T22:51:49-04:00", "utc": "1963-07-18T02:51:49Z", "ms": -203807290683.73233 }, "end": { "local": "1963-07-18T20:31:42-04:00", "utc": "1963-07-19T00:31:42Z", "ms": -203729298108.40277 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-07-17", "window": { "start": { "local": "1963-07-17T20:55:24-04:00", "utc": "1963-07-18T00:55:24Z", "ms": -203814275872.53494 }, "end": { "local": "1963-07-17T22:06:58-04:00", "utc": "1963-07-18T02:06:58Z", "ms": -203809982327.2069 } }, "covered_min": 0, "window_min": 72, "qualifies": false }, { "local_date": "1963-07-18", "window": { "start": { "local": "1963-07-18T20:54:39-04:00", "utc": "1963-07-19T00:54:39Z", "ms": -203727920730.35806 }, "end": { "local": "1963-07-18T22:06:26-04:00", "utc": "1963-07-19T02:06:26Z", "ms": -203723613858.63736 } }, "covered_min": 0, "window_min": 72, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:52 on Wed 17 Jul to 20:32 on Thu 18 Jul.", "fact": "1963-07-18T02:51:49Z → 1963-07-19T00:31:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:55–22:07 on the 17th, 20:55–22:06 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 72 minutes on the 17th and 0 of 72 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 1377 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Wednesday 17 July.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-07-17", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-17", "confidence": "boundary" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Wednesday 17 July. Trayodaśī runs from 22:52 on Wed 17 Jul to 20:32 on Thu 18 Jul, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-07-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-07-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16088, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-07-18T20:31:42-04:00", "utc": "1963-07-19T00:31:42Z", "ms": -203729298108.40277 }, "end": { "local": "1963-07-19T18:26:35-04:00", "utc": "1963-07-19T22:26:35Z", "ms": -203650404971.69086 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-18T20:31:42-04:00", "utc": "1963-07-19T00:31:42Z", "ms": -203729298108.40277 }, "end": { "local": "1963-07-19T18:26:35-04:00", "utc": "1963-07-19T22:26:35Z", "ms": -203650404971.69086 } }, "kaala": "nishita", "days": [ { "local_date": "1963-07-18", "window": { "start": { "local": "1963-07-19T00:59:50-04:00", "utc": "1963-07-19T04:59:50Z", "ms": -203713209961.4054 }, "end": { "local": "1963-07-19T01:47:50-04:00", "utc": "1963-07-19T05:47:50Z", "ms": -203710329961.4054 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-07-19", "window": { "start": { "local": "1963-07-20T00:59:55-04:00", "utc": "1963-07-20T04:59:55Z", "ms": -203626805381.30054 }, "end": { "local": "1963-07-20T01:47:55-04:00", "utc": "1963-07-20T05:47:55Z", "ms": -203623925381.30054 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:32 on Thu 18 Jul to 18:27 on Fri 19 Jul.", "fact": "1963-07-19T00:31:42Z → 1963-07-19T22:26:35Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 01:00–01:48 on the 18th, 01:00–01:48 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 16088 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Thursday 18 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": "1963-07-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-18", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Thursday 18 July. Caturdaśī runs from 20:32 on Thu 18 Jul to 18:27 on Fri 19 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-07-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2834, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1963-07-22T14:42:08-04:00", "utc": "1963-07-22T18:42:08Z", "ms": -203404672108.41068 }, "end": { "local": "1963-07-23T14:34:52-04:00", "utc": "1963-07-23T18:34:52Z", "ms": -203318708234.97272 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-22T14:42:08-04:00", "utc": "1963-07-22T18:42:08Z", "ms": -203404672108.41068 }, "end": { "local": "1963-07-23T14:34:52-04:00", "utc": "1963-07-23T18:34:52Z", "ms": -203318708234.97272 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-07-22", "window": { "start": { "local": "1963-07-22T12:59:36-04:00", "utc": "1963-07-22T16:59:36Z", "ms": -203410824303.35364 }, "end": { "local": "1963-07-22T13:47:36-04:00", "utc": "1963-07-22T17:47:36Z", "ms": -203407944303.35364 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-07-23", "window": { "start": { "local": "1963-07-23T12:59:38-04:00", "utc": "1963-07-23T16:59:38Z", "ms": -203324422386.0572 }, "end": { "local": "1963-07-23T13:47:38-04:00", "utc": "1963-07-23T17:47:38Z", "ms": -203321542386.0572 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 14:42 on Mon 22 Jul to 14:35 on Tue 23 Jul.", "fact": "1963-07-22T18:42:08Z → 1963-07-23T18:34:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:00–13:48 on the 22nd, 13:00–13:48 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2834 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Toronto, 1963: Tuesday 23 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "madhusrava-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Madhusrava (Gujerat) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-23", "confidence": "determinate" } ], "quote": "In Toronto, Madhusravā Tṛtīyā (Hariyali Teej) 1963 falls on Tuesday 23 July. Tṛtīyā runs from 14:42 on Mon 22 Jul to 14:35 on Tue 23 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-07-24", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2834, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-07-23T14:34:52-04:00", "utc": "1963-07-23T18:34:52Z", "ms": -203318708234.97272 }, "end": { "local": "1963-07-24T15:06:12-04:00", "utc": "1963-07-24T19:06:12Z", "ms": -203230427946.4572 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-23T14:34:52-04:00", "utc": "1963-07-23T18:34:52Z", "ms": -203318708234.97272 }, "end": { "local": "1963-07-24T15:06:12-04:00", "utc": "1963-07-24T19:06:12Z", "ms": -203230427946.4572 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-07-23", "window": { "start": { "local": "1963-07-23T12:59:38-04:00", "utc": "1963-07-23T16:59:38Z", "ms": -203324422386.0572 }, "end": { "local": "1963-07-23T13:47:38-04:00", "utc": "1963-07-23T17:47:38Z", "ms": -203321542386.0572 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-07-24", "window": { "start": { "local": "1963-07-24T12:59:39-04:00", "utc": "1963-07-24T16:59:39Z", "ms": -203238021045.58496 }, "end": { "local": "1963-07-24T13:47:39-04:00", "utc": "1963-07-24T17:47:39Z", "ms": -203235141045.58496 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:35 on Tue 23 Jul to 15:06 on Wed 24 Jul.", "fact": "1963-07-23T18:34:52Z → 1963-07-24T19:06:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:00–13:48 on the 23rd, 13:00–13:48 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 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2834 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Wednesday 24 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": "1963-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-24", "confidence": "boundary" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Wednesday 24 July. Caturthī runs from 14:35 on Tue 23 Jul to 15:06 on Wed 24 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-07-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4713, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1963-07-24T15:06:12-04:00", "utc": "1963-07-24T19:06:12Z", "ms": -203230427946.4572 }, "end": { "local": "1963-07-25T16:15:07-04:00", "utc": "1963-07-25T20:15:07Z", "ms": -203139892775.33524 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-24T15:06:12-04:00", "utc": "1963-07-24T19:06:12Z", "ms": -203230427946.4572 }, "end": { "local": "1963-07-25T16:15:07-04:00", "utc": "1963-07-25T20:15:07Z", "ms": -203139892775.33524 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-07-24", "window": { "start": { "local": "1963-07-24T12:59:39-04:00", "utc": "1963-07-24T16:59:39Z", "ms": -203238021045.58496 }, "end": { "local": "1963-07-24T13:47:39-04:00", "utc": "1963-07-24T17:47:39Z", "ms": -203235141045.58496 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-07-25", "window": { "start": { "local": "1963-07-25T12:59:40-04:00", "utc": "1963-07-25T16:59:40Z", "ms": -203151620290.8183 }, "end": { "local": "1963-07-25T13:47:40-04:00", "utc": "1963-07-25T17:47:40Z", "ms": -203148740290.8183 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:06 on Wed 24 Jul to 16:15 on Thu 25 Jul.", "fact": "1963-07-24T19:06:12Z → 1963-07-25T20:15:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:00–13:48 on the 24th, 13:00–13:48 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 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: paraviddha → only-day · margin 4713 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Toronto, 1963: Thursday 25 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-07-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-25", "confidence": "determinate" } ], "quote": "In Toronto, Nāga Pañcamī 1963 falls on Thursday 25 July. Pañcamī runs from 15:06 on Wed 24 Jul to 16:15 on Thu 25 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-07-31", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-07-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5622, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-07-31T02:50:01-04:00", "utc": "1963-07-31T06:50:01Z", "ms": -202669798576.36557 }, "end": { "local": "1963-08-01T04:32:25-04:00", "utc": "1963-08-01T08:32:25Z", "ms": -202577255198.41196 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-07-31T02:50:01-04:00", "utc": "1963-07-31T06:50:01Z", "ms": -202669798576.36557 }, "end": { "local": "1963-08-01T04:32:25-04:00", "utc": "1963-08-01T08:32:25Z", "ms": -202577255198.41196 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-07-31", "window": { "start": { "local": "1963-07-31T06:05:03-04:00", "utc": "1963-07-31T10:05:03Z", "ms": -202658097494.5231 }, "end": { "local": "1963-07-31T06:05:03-04:00", "utc": "1963-07-31T10:05:03Z", "ms": -202658097494.5231 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-08-01", "window": { "start": { "local": "1963-08-01T06:06:06-04:00", "utc": "1963-08-01T10:06:06Z", "ms": -202571633615.32428 }, "end": { "local": "1963-08-01T06:06:06-04:00", "utc": "1963-08-01T10:06:06Z", "ms": -202571633615.32428 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-08-01", "start": { "local": "1963-08-01T14:50:57-04:00", "utc": "1963-08-01T18:50:57Z", "ms": -202540143490.63727 }, "end": { "local": "1963-08-01T17:45:53-04:00", "utc": "1963-08-01T21:45:53Z", "ms": -202529646782.40826 }, "basis": "aparahna", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-08-02T05:42:22-04:00", "utc": "1963-08-02T09:42:22Z", "ms": -202486657574.5589 }, "hari_vasara_end": { "local": "1963-08-01T10:49:54-04:00", "utc": "1963-08-01T14:49:54Z", "ms": -202554605792.4487 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:50 on Wed 31 Jul to 04:32 on Thu 1 Aug.", "fact": "1963-07-31T06:50:01Z → 1963-08-01T08:32:25Z" }, { "step": "kaala", "text": "Sunrise is at 06:05 on the 31st and 06:06 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 31st and is not 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 5622 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Toronto, 1963: Wednesday 31 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": "1963-07-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-07-31", "confidence": "determinate" } ], "quote": "In Toronto, Putradā Ekādaśī 1963 falls on Wednesday 31 July. Ekādaśī runs from 02:50 on Wed 31 Jul to 04:32 on Thu 1 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-07-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26222, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1963-08-01T04:32:25-04:00", "utc": "1963-08-01T08:32:25Z", "ms": -202577255198.41196 }, "end": { "local": "1963-08-02T05:42:22-04:00", "utc": "1963-08-02T09:42:22Z", "ms": -202486657574.5589 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-08-01T04:32:25-04:00", "utc": "1963-08-01T08:32:25Z", "ms": -202577255198.41196 }, "end": { "local": "1963-08-02T05:42:22-04:00", "utc": "1963-08-02T09:42:22Z", "ms": -202486657574.5589 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-01", "window": { "start": { "local": "1963-08-01T12:59:28-04:00", "utc": "1963-08-01T16:59:28Z", "ms": -202546831844.75177 }, "end": { "local": "1963-08-01T13:47:28-04:00", "utc": "1963-08-01T17:47:28Z", "ms": -202543951844.75177 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-02", "window": { "start": { "local": "1963-08-02T12:59:24-04:00", "utc": "1963-08-02T16:59:24Z", "ms": -202460435923.2913 }, "end": { "local": "1963-08-02T13:47:24-04:00", "utc": "1963-08-02T17:47:24Z", "ms": -202457555923.2913 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 04:32 on Thu 1 Aug to 05:42 on Fri 2 Aug.", "fact": "1963-08-01T08:32:25Z → 1963-08-02T09:42:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:59–13:47 on the 1st, 12:59–13:47 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26222 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Toronto, 1963: Thursday 1 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": "1963-08-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-01", "confidence": "determinate" } ], "quote": "In Toronto, Dāmodara Dvādaśī 1963 falls on Thursday 1 August. Dvādaśī runs from 04:32 on Thu 1 Aug to 05:42 on Fri 2 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/pradosha-vrata?on=1963-08-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27962, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-08-02T05:42:22-04:00", "utc": "1963-08-02T09:42:22Z", "ms": -202486657574.5589 }, "end": { "local": "1963-08-03T06:15:31-04:00", "utc": "1963-08-03T10:15:31Z", "ms": -202398268628.63043 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-08-02T05:42:22-04:00", "utc": "1963-08-02T09:42:22Z", "ms": -202486657574.5589 }, "end": { "local": "1963-08-03T06:15:31-04:00", "utc": "1963-08-03T10:15:31Z", "ms": -202398268628.63043 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-08-01", "window": { "start": { "local": "1963-08-01T20:40:50-04:00", "utc": "1963-08-02T00:40:50Z", "ms": -202519150074.17926 }, "end": { "local": "1963-08-01T21:56:21-04:00", "utc": "1963-08-02T01:56:21Z", "ms": -202514619308.9702 } }, "covered_min": 0, "window_min": 76, "qualifies": false }, { "local_date": "1963-08-02", "window": { "start": { "local": "1963-08-02T20:39:37-04:00", "utc": "1963-08-03T00:39:37Z", "ms": -202432822511.47113 }, "end": { "local": "1963-08-02T21:55:27-04:00", "utc": "1963-08-03T01:55:27Z", "ms": -202428273467.8758 } }, "covered_min": 76, "window_min": 76, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:42 on Fri 2 Aug to 06:16 on Sat 3 Aug.", "fact": "1963-08-02T09:42:22Z → 1963-08-03T10:15:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:41–21:56 on the 1st, 20:40–21:55 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 76 minutes on the 1st and 76 of 76 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 27962 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Friday 2 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": "1963-08-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-02", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Friday 2 August. Trayodaśī runs from 05:42 on Fri 2 Aug to 06:16 on Sat 3 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-08-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2376, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-08-04T06:11:00-04:00", "utc": "1963-08-04T10:11:00Z", "ms": -202312140151.9582 }, "end": { "local": "1963-08-05T05:30:50-04:00", "utc": "1963-08-05T09:30:50Z", "ms": -202228150014.85794 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1963-08-04T17:55:09-04:00", "utc": "1963-08-04T21:55:09Z", "ms": -202269890921.86322 }, "end": { "local": "1963-08-05T05:30:50-04:00", "utc": "1963-08-05T09:30:50Z", "ms": -202228150014.85794 } }, "kaala": "day", "days": [ { "local_date": "1963-08-04", "window": { "start": { "local": "1963-08-04T06:09:20-04:00", "utc": "1963-08-04T10:09:20Z", "ms": -202312239692.0101 }, "end": { "local": "1963-08-05T06:10:26-04:00", "utc": "1963-08-05T10:10:26Z", "ms": -202225774383.91467 } }, "covered_min": 696, "window_min": 1441, "qualifies": true }, { "local_date": "1963-08-05", "window": { "start": { "local": "1963-08-05T06:10:26-04:00", "utc": "1963-08-05T10:10:26Z", "ms": -202225774383.91467 }, "end": { "local": "1963-08-06T06:11:31-04:00", "utc": "1963-08-06T10:11:31Z", "ms": -202139308784.3029 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:11 on Sun 4 Aug to 05:31 on Mon 5 Aug. Its second half begins at 17:55 on Sun 4 Aug.", "fact": "1963-08-04T10:11:00Z → 1963-08-05T09:30:50Z · second half from 1963-08-04T21:55:09Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:09 on the 4th, and from 06:10 on the 5th.", "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 696 of 1441 minutes on the 4th and 0 of 1441 on the 5th.", "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 2376 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Toronto, 1963: Sunday 4 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": "1963-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-04", "confidence": "determinate" } ], "quote": "In Toronto, Rakṣā Bandhana (Rakhi) 1963 falls on Sunday 4 August. The second half of Pūrṇimā runs from 17:55 on Sun 4 Aug to 05:31 on Mon 5 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24494, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-08-04T06:11:00-04:00", "utc": "1963-08-04T10:11:00Z", "ms": -202312140151.9582 }, "end": { "local": "1963-08-05T05:30:50-04:00", "utc": "1963-08-05T09:30:50Z", "ms": -202228150014.85794 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1963-08-04T06:11:00-04:00", "utc": "1963-08-04T10:11:00Z", "ms": -202312140151.9582 }, "end": { "local": "1963-08-05T05:30:50-04:00", "utc": "1963-08-05T09:30:50Z", "ms": -202228150014.85794 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-04", "window": { "start": { "local": "1963-08-04T12:59:14-04:00", "utc": "1963-08-04T16:59:14Z", "ms": -202287645885.03732 }, "end": { "local": "1963-08-04T13:47:14-04:00", "utc": "1963-08-04T17:47:14Z", "ms": -202284765885.03732 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-05", "window": { "start": { "local": "1963-08-05T12:59:08-04:00", "utc": "1963-08-05T16:59:08Z", "ms": -202201251758.03247 }, "end": { "local": "1963-08-05T13:47:08-04:00", "utc": "1963-08-05T17:47:08Z", "ms": -202198371758.03247 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:11 on Sun 4 Aug to 05:31 on Mon 5 Aug.", "fact": "1963-08-04T10:11:00Z → 1963-08-05T09:30:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:59–13:47 on the 4th, 12:59–13:47 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 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: unstated → only-day · margin 24494 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Toronto, 1963: Sunday 4 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": "1963-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-04", "confidence": "determinate" } ], "quote": "In Toronto, Ṛṣi Tarpaṇa 1963 falls on Sunday 4 August. Pūrṇimā runs from 06:11 on Sun 4 Aug to 05:31 on Mon 5 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17761, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1963-08-06T04:19:10-04:00", "utc": "1963-08-06T08:19:10Z", "ms": -202146050122.0549 }, "end": { "local": "1963-08-07T02:41:26-04:00", "utc": "1963-08-07T06:41:26Z", "ms": -202065513754.1904 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-06T04:19:10-04:00", "utc": "1963-08-06T08:19:10Z", "ms": -202146050122.0549 }, "end": { "local": "1963-08-07T02:41:26-04:00", "utc": "1963-08-07T06:41:26Z", "ms": -202065513754.1904 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-08-05", "window": { "start": { "local": "1963-08-05T21:10:10-04:00", "utc": "1963-08-06T01:10:10Z", "ms": -202171790498.05652 }, "end": { "local": "1963-08-05T21:10:10-04:00", "utc": "1963-08-06T01:10:10Z", "ms": -202171790498.05652 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-08-06", "window": { "start": { "local": "1963-08-06T21:45:25-04:00", "utc": "1963-08-07T01:45:25Z", "ms": -202083274577.306 }, "end": { "local": "1963-08-06T21:45:25-04:00", "utc": "1963-08-07T01:45:25Z", "ms": -202083274577.306 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 04:19 on Tue 6 Aug to 02:41 on Wed 7 Aug.", "fact": "1963-08-06T08:19:10Z → 1963-08-07T06:41:26Z" }, { "step": "kaala", "text": "Moonrise is at 21:10 on the 5th and 21:45 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17761 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Toronto, 1963: Tuesday 6 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": "1963-08-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-06", "confidence": "determinate" } ], "quote": "In Toronto, Aśūnya Śayana Vrata 1963 falls on Tuesday 6 August. Dvitīyā runs from 04:19 on Tue 6 Aug to 02:41 on Wed 7 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37048, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1963-08-07T02:41:26-04:00", "utc": "1963-08-07T06:41:26Z", "ms": -202065513754.1904 }, "end": { "local": "1963-08-08T00:43:43-04:00", "utc": "1963-08-08T04:43:43Z", "ms": -201986176532.67682 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-07T02:41:26-04:00", "utc": "1963-08-07T06:41:26Z", "ms": -202065513754.1904 }, "end": { "local": "1963-08-08T00:43:43-04:00", "utc": "1963-08-08T04:43:43Z", "ms": -201986176532.67682 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-07", "window": { "start": { "local": "1963-08-07T12:58:55-04:00", "utc": "1963-08-07T16:58:55Z", "ms": -202028465254.42432 }, "end": { "local": "1963-08-07T13:46:55-04:00", "utc": "1963-08-07T17:46:55Z", "ms": -202025585254.42432 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-08", "window": { "start": { "local": "1963-08-08T12:58:47-04:00", "utc": "1963-08-08T16:58:47Z", "ms": -201942072861.70245 }, "end": { "local": "1963-08-08T13:46:47-04:00", "utc": "1963-08-08T17:46:47Z", "ms": -201939192861.70245 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:41 on Wed 7 Aug to 00:44 on Thu 8 Aug.", "fact": "1963-08-07T06:41:26Z → 1963-08-08T04:43:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:59–13:47 on the 7th, 12:59–13:47 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 0 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37048 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Toronto, 1963: Wednesday 7 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kajjali-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 3 Kajjali trtiya, (paraviddha), Angaveta trtiya (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-07", "confidence": "determinate" } ], "quote": "In Toronto, Kajjalī Tṛtīyā (Kajari Teej) 1963 falls on Wednesday 7 August. Tṛtīyā runs from 02:41 on Wed 7 Aug to 00:44 on Thu 8 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-08-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-07", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 868, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-08-08T00:43:43-04:00", "utc": "1963-08-08T04:43:43Z", "ms": -201986176532.67682 }, "end": { "local": "1963-08-08T22:32:11-04:00", "utc": "1963-08-09T02:32:11Z", "ms": -201907669208.7881 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-08T00:43:43-04:00", "utc": "1963-08-08T04:43:43Z", "ms": -201986176532.67682 }, "end": { "local": "1963-08-08T22:32:11-04:00", "utc": "1963-08-09T02:32:11Z", "ms": -201907669208.7881 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-08-07", "window": { "start": { "local": "1963-08-07T22:17:06-04:00", "utc": "1963-08-08T02:17:06Z", "ms": -201994973586.43448 }, "end": { "local": "1963-08-07T22:17:06-04:00", "utc": "1963-08-08T02:17:06Z", "ms": -201994973586.43448 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-08-08", "window": { "start": { "local": "1963-08-08T22:46:39-04:00", "utc": "1963-08-09T02:46:39Z", "ms": -201906801334.0098 }, "end": { "local": "1963-08-08T22:46:39-04:00", "utc": "1963-08-09T02:46:39Z", "ms": -201906801334.0098 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:44 on Thu 8 Aug to 22:32 on Thu 8 Aug.", "fact": "1963-08-08T04:43:43Z → 1963-08-09T02:32:11Z" }, { "step": "kaala", "text": "Moonrise is at 22:17 on the 7th and 22:47 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not 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": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 868 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Wednesday 7 August.", "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": "1963-08-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-07", "confidence": "boundary" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Wednesday 7 August. Caturthī runs from 00:44 on Thu 8 Aug to 22:32 on Thu 8 Aug, and is current at moonrise on neither day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-08-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7220, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-08-08T00:43:43-04:00", "utc": "1963-08-08T04:43:43Z", "ms": -201986176532.67682 }, "end": { "local": "1963-08-08T22:32:11-04:00", "utc": "1963-08-09T02:32:11Z", "ms": -201907669208.7881 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-08T00:43:43-04:00", "utc": "1963-08-08T04:43:43Z", "ms": -201986176532.67682 }, "end": { "local": "1963-08-08T22:32:11-04:00", "utc": "1963-08-09T02:32:11Z", "ms": -201907669208.7881 } }, "kaala": "sayahna", "days": [ { "local_date": "1963-08-07", "window": { "start": { "local": "1963-08-07T17:41:05-04:00", "utc": "1963-08-07T21:41:05Z", "ms": -202011534657.9548 }, "end": { "local": "1963-08-07T20:33:12-04:00", "utc": "1963-08-08T00:33:12Z", "ms": -202001207593.6418 } }, "covered_min": 0, "window_min": 172, "qualifies": false }, { "local_date": "1963-08-08", "window": { "start": { "local": "1963-08-08T17:40:13-04:00", "utc": "1963-08-08T21:40:13Z", "ms": -201925186500.54874 }, "end": { "local": "1963-08-08T20:31:51-04:00", "utc": "1963-08-09T00:31:51Z", "ms": -201914888926.44626 } }, "covered_min": 172, "window_min": 172, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:44 on Thu 8 Aug to 22:32 on Thu 8 Aug.", "fact": "1963-08-08T04:43:43Z → 1963-08-09T02:32:11Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:41–20:33 on the 7th, 17:40–20:32 on the 8th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 0 of 172 minutes on the 7th and 172 of 172 on the 8th.", "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 7220 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Toronto, 1963: Thursday 8 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bahula-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)." } ], "kaala": "sayahna", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-08", "confidence": "determinate" } ], "quote": "In Toronto, Bahulā Caturthī 1963 falls on Thursday 8 August. Caturthī runs from 00:44 on Thu 8 Aug to 22:32 on Thu 8 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14626, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1963-08-09T20:12:38-04:00", "utc": "1963-08-10T00:12:38Z", "ms": -201829642350.76694 }, "end": { "local": "1963-08-10T17:50:17-04:00", "utc": "1963-08-10T21:50:17Z", "ms": -201751783361.23303 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-09T20:12:38-04:00", "utc": "1963-08-10T00:12:38Z", "ms": -201829642350.76694 }, "end": { "local": "1963-08-10T17:50:17-04:00", "utc": "1963-08-10T21:50:17Z", "ms": -201751783361.23303 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-09", "window": { "start": { "local": "1963-08-09T12:58:39-04:00", "utc": "1963-08-09T16:58:39Z", "ms": -201855681030.13037 }, "end": { "local": "1963-08-09T13:46:39-04:00", "utc": "1963-08-09T17:46:39Z", "ms": -201852801030.13037 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-08-10", "window": { "start": { "local": "1963-08-10T12:58:30-04:00", "utc": "1963-08-10T16:58:30Z", "ms": -201769289750.88654 }, "end": { "local": "1963-08-10T13:46:30-04:00", "utc": "1963-08-10T17:46:30Z", "ms": -201766409750.88654 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:13 on Fri 9 Aug to 17:50 on Sat 10 Aug.", "fact": "1963-08-10T00:12:38Z → 1963-08-10T21:50:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:59–13:47 on the 9th, 12:59–13:47 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14626 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Toronto, 1963: Saturday 10 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-10", "confidence": "determinate" } ], "quote": "In Toronto, Hala Ṣaṣṭhī 1963 falls on Saturday 10 August. Ṣaṣṭhī runs from 20:13 on Fri 9 Aug to 17:50 on Sat 10 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34160, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-08-11T15:29:34-04:00", "utc": "1963-08-11T19:29:34Z", "ms": -201673825922.2646 }, "end": { "local": "1963-08-12T13:14:08-04:00", "utc": "1963-08-12T17:14:08Z", "ms": -201595551661.36636 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-11T15:29:34-04:00", "utc": "1963-08-11T19:29:34Z", "ms": -201673825922.2646 }, "end": { "local": "1963-08-12T13:14:08-04:00", "utc": "1963-08-12T17:14:08Z", "ms": -201595551661.36636 } }, "kaala": "nishita", "days": [ { "local_date": "1963-08-11", "window": { "start": { "local": "1963-08-12T00:58:54-04:00", "utc": "1963-08-12T04:58:54Z", "ms": -201639665552.19034 }, "end": { "local": "1963-08-12T01:46:54-04:00", "utc": "1963-08-12T05:46:54Z", "ms": -201636785552.19034 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-12", "window": { "start": { "local": "1963-08-13T00:58:45-04:00", "utc": "1963-08-13T04:58:45Z", "ms": -201553275275.22754 }, "end": { "local": "1963-08-13T01:46:45-04:00", "utc": "1963-08-13T05:46:45Z", "ms": -201550395275.22754 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 15:30 on Sun 11 Aug to 13:14 on Mon 12 Aug.", "fact": "1963-08-11T19:29:34Z → 1963-08-12T17:14:08Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:59–01:47 on the 11th, 00:59–01:47 on the 12th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34160 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Toronto, 1963: Sunday 11 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "janmashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami." } ], "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.", "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-11", "confidence": "determinate" } ], "quote": "In Toronto, Janmāṣṭamī 1963 falls on Sunday 11 August. Aṣṭamī runs from 15:30 on Sun 11 Aug to 13:14 on Mon 12 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6193, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1963-08-10T17:50:17-04:00", "utc": "1963-08-10T21:50:17Z", "ms": -201751783361.23303 }, "end": { "local": "1963-08-11T15:29:34-04:00", "utc": "1963-08-11T19:29:34Z", "ms": -201673825922.2646 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-10T17:50:17-04:00", "utc": "1963-08-10T21:50:17Z", "ms": -201751783361.23303 }, "end": { "local": "1963-08-11T15:29:34-04:00", "utc": "1963-08-11T19:29:34Z", "ms": -201673825922.2646 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-10", "window": { "start": { "local": "1963-08-10T12:58:30-04:00", "utc": "1963-08-10T16:58:30Z", "ms": -201769289750.88654 }, "end": { "local": "1963-08-10T13:46:30-04:00", "utc": "1963-08-10T17:46:30Z", "ms": -201766409750.88654 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-08-11", "window": { "start": { "local": "1963-08-11T12:58:21-04:00", "utc": "1963-08-11T16:58:21Z", "ms": -201682899015.41125 }, "end": { "local": "1963-08-11T13:46:21-04:00", "utc": "1963-08-11T17:46:21Z", "ms": -201680019015.41125 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 17:50 on Sat 10 Aug to 15:30 on Sun 11 Aug.", "fact": "1963-08-10T21:50:17Z → 1963-08-11T19:29:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:59–13:47 on the 10th, 12:58–13:46 on the 11th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6193 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Toronto, 1963: Sunday 11 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitala-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 7 Sitala saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-11", "confidence": "determinate" } ], "quote": "In Toronto, Śītalā Saptamī 1963 falls on Sunday 11 August. Saptamī runs from 17:50 on Sat 10 Aug to 15:30 on Sun 11 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-08-15", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3918, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-08-14T09:10:24-04:00", "utc": "1963-08-14T13:10:24Z", "ms": -201437375608.71057 }, "end": { "local": "1963-08-15T07:26:49-04:00", "utc": "1963-08-15T11:26:49Z", "ms": -201357190530.8241 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-14T09:10:24-04:00", "utc": "1963-08-14T13:10:24Z", "ms": -201437375608.71057 }, "end": { "local": "1963-08-15T07:26:49-04:00", "utc": "1963-08-15T11:26:49Z", "ms": -201357190530.8241 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-08-14", "window": { "start": { "local": "1963-08-14T06:20:24-04:00", "utc": "1963-08-14T10:20:24Z", "ms": -201447575913.97855 }, "end": { "local": "1963-08-14T06:20:24-04:00", "utc": "1963-08-14T10:20:24Z", "ms": -201447575913.97855 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-08-15", "window": { "start": { "local": "1963-08-15T06:21:31-04:00", "utc": "1963-08-15T10:21:31Z", "ms": -201361108584.64655 }, "end": { "local": "1963-08-15T06:21:31-04:00", "utc": "1963-08-15T10:21:31Z", "ms": -201361108584.64655 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-08-16", "start": { "local": "1963-08-16T06:22:39-04:00", "utc": "1963-08-16T10:22:39Z", "ms": -201274641161.4666 }, "end": { "local": "1963-08-16T09:10:10-04:00", "utc": "1963-08-16T13:10:10Z", "ms": -201264589991.0265 }, "basis": "dvadashi-over", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-08-16T05:58:33-04:00", "utc": "1963-08-16T09:58:33Z", "ms": -201276087024.59045 }, "hari_vasara_end": { "local": "1963-08-15T13:04:45-04:00", "utc": "1963-08-15T17:04:45Z", "ms": -201336914654.2657 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:10 on Wed 14 Aug to 07:27 on Thu 15 Aug.", "fact": "1963-08-14T13:10:24Z → 1963-08-15T11:26:49Z" }, { "step": "kaala", "text": "Sunrise is at 06:20 on the 14th and 06:22 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 3918 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Toronto, 1963: Thursday 15 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-15", "confidence": "determinate" } ], "quote": "In Toronto, Ajā Ekādaśī 1963 falls on Thursday 15 August. Ekādaśī runs from 09:10 on Wed 14 Aug to 07:27 on Thu 15 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-08-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-08-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25654, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-08-16T05:58:33-04:00", "utc": "1963-08-16T09:58:33Z", "ms": -201276087024.59045 }, "end": { "local": "1963-08-17T04:48:17-04:00", "utc": "1963-08-17T08:48:17Z", "ms": -201193903440.962 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-16T05:58:33-04:00", "utc": "1963-08-16T09:58:33Z", "ms": -201276087024.59045 }, "end": { "local": "1963-08-17T04:48:17-04:00", "utc": "1963-08-17T08:48:17Z", "ms": -201193903440.962 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-08-15", "window": { "start": { "local": "1963-08-15T20:21:46-04:00", "utc": "1963-08-16T00:21:46Z", "ms": -201310694135.37405 }, "end": { "local": "1963-08-15T21:41:53-04:00", "utc": "1963-08-16T01:41:53Z", "ms": -201305887072.1864 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "1963-08-16", "window": { "start": { "local": "1963-08-16T20:20:15-04:00", "utc": "1963-08-17T00:20:15Z", "ms": -201224385309.26605 }, "end": { "local": "1963-08-16T21:40:43-04:00", "utc": "1963-08-17T01:40:43Z", "ms": -201219557089.92386 } }, "covered_min": 80, "window_min": 80, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:59 on Fri 16 Aug to 04:48 on Sat 17 Aug.", "fact": "1963-08-16T09:58:33Z → 1963-08-17T08:48:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:22–21:42 on the 15th, 20:20–21:41 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 80 minutes on the 15th and 80 of 80 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 25654 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Friday 16 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-16", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Friday 16 August. Trayodaśī runs from 05:59 on Fri 16 Aug to 04:48 on Sat 17 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-08-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22775, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-08-17T04:48:17-04:00", "utc": "1963-08-17T08:48:17Z", "ms": -201193903440.962 }, "end": { "local": "1963-08-18T03:59:07-04:00", "utc": "1963-08-18T07:59:07Z", "ms": -201110452956.73764 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-17T04:48:17-04:00", "utc": "1963-08-17T08:48:17Z", "ms": -201193903440.962 }, "end": { "local": "1963-08-18T03:59:07-04:00", "utc": "1963-08-18T07:59:07Z", "ms": -201110452956.73764 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-08-16", "window": { "start": { "local": "1963-08-16T20:20:15-04:00", "utc": "1963-08-17T00:20:15Z", "ms": -201224385309.26605 }, "end": { "local": "1963-08-16T21:40:43-04:00", "utc": "1963-08-17T01:40:43Z", "ms": -201219557089.92386 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "1963-08-17", "window": { "start": { "local": "1963-08-17T20:18:42-04:00", "utc": "1963-08-18T00:18:42Z", "ms": -201138077565.44067 }, "end": { "local": "1963-08-17T21:39:32-04:00", "utc": "1963-08-18T01:39:32Z", "ms": -201133228038.27768 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:48 on Sat 17 Aug to 03:59 on Sun 18 Aug.", "fact": "1963-08-17T08:48:17Z → 1963-08-18T07:59:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:20–21:41 on the 16th, 20:19–21:40 on the 17th.", "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 80 minutes on the 16th and 81 of 81 on the 17th.", "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 22775 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Toronto, 1963: Saturday 17 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-17", "confidence": "determinate" } ], "quote": "In Toronto, Aghora Caturdaśī 1963 falls on Saturday 17 August. Caturdaśī runs from 04:48 on Sat 17 Aug to 03:59 on Sun 18 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/shivaratri?on=1963-08-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7999, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-08-17T04:48:17-04:00", "utc": "1963-08-17T08:48:17Z", "ms": -201193903440.962 }, "end": { "local": "1963-08-18T03:59:07-04:00", "utc": "1963-08-18T07:59:07Z", "ms": -201110452956.73764 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-17T04:48:17-04:00", "utc": "1963-08-17T08:48:17Z", "ms": -201193903440.962 }, "end": { "local": "1963-08-18T03:59:07-04:00", "utc": "1963-08-18T07:59:07Z", "ms": -201110452956.73764 } }, "kaala": "nishita", "days": [ { "local_date": "1963-08-16", "window": { "start": { "local": "1963-08-17T00:58:01-04:00", "utc": "1963-08-17T04:58:01Z", "ms": -201207719486.7328 }, "end": { "local": "1963-08-17T01:46:01-04:00", "utc": "1963-08-17T05:46:01Z", "ms": -201204839486.7328 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-08-17", "window": { "start": { "local": "1963-08-18T00:57:48-04:00", "utc": "1963-08-18T04:57:48Z", "ms": -201121331838.57944 }, "end": { "local": "1963-08-18T01:45:48-04:00", "utc": "1963-08-18T05:45:48Z", "ms": -201118451838.57944 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:48 on Sat 17 Aug to 03:59 on Sun 18 Aug.", "fact": "1963-08-17T08:48:17Z → 1963-08-18T07:59:07Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:58–01:46 on the 16th, 00:58–01:46 on the 17th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7999 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Saturday 17 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-17", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Saturday 17 August. Caturdaśī runs from 04:48 on Sat 17 Aug to 03:59 on Sun 18 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-08-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33528, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1963-08-19T03:34:30-04:00", "utc": "1963-08-19T07:34:30Z", "ms": -201025530370.02133 }, "end": { "local": "1963-08-20T03:37:47-04:00", "utc": "1963-08-20T07:37:47Z", "ms": -200938933448.45673 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-19T03:34:30-04:00", "utc": "1963-08-19T07:34:30Z", "ms": -201025530370.02133 }, "end": { "local": "1963-08-20T03:37:47-04:00", "utc": "1963-08-20T07:37:47Z", "ms": -200938933448.45673 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-19", "window": { "start": { "local": "1963-08-19T12:56:48-04:00", "utc": "1963-08-19T16:56:48Z", "ms": -200991791862.20435 }, "end": { "local": "1963-08-19T13:44:48-04:00", "utc": "1963-08-19T17:44:48Z", "ms": -200988911862.20435 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-20", "window": { "start": { "local": "1963-08-20T12:56:34-04:00", "utc": "1963-08-20T16:56:34Z", "ms": -200905405716.6861 }, "end": { "local": "1963-08-20T13:44:34-04:00", "utc": "1963-08-20T17:44:34Z", "ms": -200902525716.6861 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 03:34 on Mon 19 Aug to 03:38 on Tue 20 Aug.", "fact": "1963-08-19T07:34:30Z → 1963-08-20T07:37:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:57–13:45 on the 19th, 12:57–13:45 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33528 s" }, { "step": "ruling", "text": "Rudra Vrata, Toronto, 1963: Monday 19 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-19", "confidence": "determinate" } ], "quote": "In Toronto, Rudra Vrata 1963 falls on Monday 19 August. Pratipadā runs from 03:34 on Mon 19 Aug to 03:38 on Tue 20 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27521, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1963-08-21T04:11:40-04:00", "utc": "1963-08-21T08:11:40Z", "ms": -200850499601.67914 }, "end": { "local": "1963-08-22T05:17:24-04:00", "utc": "1963-08-22T09:17:24Z", "ms": -200760156000.8678 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-21T04:11:40-04:00", "utc": "1963-08-21T08:11:40Z", "ms": -200850499601.67914 }, "end": { "local": "1963-08-22T05:17:24-04:00", "utc": "1963-08-22T09:17:24Z", "ms": -200760156000.8678 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-21", "window": { "start": { "local": "1963-08-21T12:56:20-04:00", "utc": "1963-08-21T16:56:20Z", "ms": -200819020047.92987 }, "end": { "local": "1963-08-21T13:44:20-04:00", "utc": "1963-08-21T17:44:20Z", "ms": -200816140047.92987 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-22", "window": { "start": { "local": "1963-08-22T12:56:05-04:00", "utc": "1963-08-22T16:56:05Z", "ms": -200732634846.8382 }, "end": { "local": "1963-08-22T13:44:05-04:00", "utc": "1963-08-22T17:44:05Z", "ms": -200729754846.8382 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 04:12 on Wed 21 Aug to 05:17 on Thu 22 Aug.", "fact": "1963-08-21T08:11:40Z → 1963-08-22T09:17:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:56–13:44 on the 21st, 12:56–13:44 on the 22nd.", "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 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27521 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Toronto, 1963: Wednesday 21 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "haritalika-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-21", "confidence": "determinate" } ], "quote": "In Toronto, Haritālikā Vrata (Hartalika Teej) 1963 falls on Wednesday 21 August. Tṛtīyā runs from 04:12 on Wed 21 Aug to 05:17 on Thu 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21727, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-08-22T05:17:24-04:00", "utc": "1963-08-22T09:17:24Z", "ms": -200760156000.8678 }, "end": { "local": "1963-08-23T06:53:43-04:00", "utc": "1963-08-23T10:53:43Z", "ms": -200667976739.26303 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-22T05:17:24-04:00", "utc": "1963-08-22T09:17:24Z", "ms": -200760156000.8678 }, "end": { "local": "1963-08-23T06:53:43-04:00", "utc": "1963-08-23T10:53:43Z", "ms": -200667976739.26303 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-22", "window": { "start": { "local": "1963-08-22T12:56:05-04:00", "utc": "1963-08-22T16:56:05Z", "ms": -200732634846.8382 }, "end": { "local": "1963-08-22T13:44:05-04:00", "utc": "1963-08-22T17:44:05Z", "ms": -200729754846.8382 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-23", "window": { "start": { "local": "1963-08-23T12:55:50-04:00", "utc": "1963-08-23T16:55:50Z", "ms": -200646250103.2658 }, "end": { "local": "1963-08-23T13:43:50-04:00", "utc": "1963-08-23T17:43:50Z", "ms": -200643370103.2658 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:17 on Thu 22 Aug to 06:54 on Fri 23 Aug.", "fact": "1963-08-22T09:17:24Z → 1963-08-23T10:53:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:56–13:44 on the 22nd, 12:56–13:44 on the 23rd.", "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 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21727 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Toronto, 1963: Thursday 22 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-22", "confidence": "determinate" } ], "quote": "In Toronto, Gaṇeśa Caturthī 1963 falls on Thursday 22 August. Caturthī runs from 05:17 on Thu 22 Aug to 06:54 on Fri 23 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14368, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1963-08-23T06:53:43-04:00", "utc": "1963-08-23T10:53:43Z", "ms": -200667976739.26303 }, "end": { "local": "1963-08-24T08:56:06-04:00", "utc": "1963-08-24T12:56:06Z", "ms": -200574234032.24084 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-23T06:53:43-04:00", "utc": "1963-08-23T10:53:43Z", "ms": -200667976739.26303 }, "end": { "local": "1963-08-24T08:56:06-04:00", "utc": "1963-08-24T12:56:06Z", "ms": -200574234032.24084 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-23", "window": { "start": { "local": "1963-08-23T12:55:50-04:00", "utc": "1963-08-23T16:55:50Z", "ms": -200646250103.2658 }, "end": { "local": "1963-08-23T13:43:50-04:00", "utc": "1963-08-23T17:43:50Z", "ms": -200643370103.2658 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-24", "window": { "start": { "local": "1963-08-24T12:55:34-04:00", "utc": "1963-08-24T16:55:34Z", "ms": -200559865806.05188 }, "end": { "local": "1963-08-24T13:43:34-04:00", "utc": "1963-08-24T17:43:34Z", "ms": -200556985806.05188 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 06:54 on Fri 23 Aug to 08:56 on Sat 24 Aug.", "fact": "1963-08-23T10:53:43Z → 1963-08-24T12:56:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:56–13:44 on the 23rd, 12:56–13:44 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 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 14368 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Toronto, 1963: Friday 23 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rishi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day" } ], "kaala": "madhyahna", "priority": "disputed", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-23", "confidence": "determinate" } ], "quote": "In Toronto, Ṛṣi Pañcamī 1963 falls on Friday 23 August. Pañcamī runs from 06:54 on Fri 23 Aug to 08:56 on Sat 24 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5942, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1963-08-24T08:56:06-04:00", "utc": "1963-08-24T12:56:06Z", "ms": -200574234032.24084 }, "end": { "local": "1963-08-25T11:16:16-04:00", "utc": "1963-08-25T15:16:16Z", "ms": -200479423967.79498 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-24T08:56:06-04:00", "utc": "1963-08-24T12:56:06Z", "ms": -200574234032.24084 }, "end": { "local": "1963-08-25T11:16:16-04:00", "utc": "1963-08-25T15:16:16Z", "ms": -200479423967.79498 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-24", "window": { "start": { "local": "1963-08-24T12:55:34-04:00", "utc": "1963-08-24T16:55:34Z", "ms": -200559865806.05188 }, "end": { "local": "1963-08-24T13:43:34-04:00", "utc": "1963-08-24T17:43:34Z", "ms": -200556985806.05188 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-25", "window": { "start": { "local": "1963-08-25T12:55:18-04:00", "utc": "1963-08-25T16:55:18Z", "ms": -200473481943.0721 }, "end": { "local": "1963-08-25T13:43:18-04:00", "utc": "1963-08-25T17:43:18Z", "ms": -200470601943.0721 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:56 on Sat 24 Aug to 11:16 on Sun 25 Aug.", "fact": "1963-08-24T12:56:06Z → 1963-08-25T15:16:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:56–13:44 on the 24th, 12:55–13:43 on the 25th.", "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 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5942 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Toronto, 1963: Saturday 24 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi-bhadrapada", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Surya sasthi (paraviddha), Lolarka sasthi" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-24", "confidence": "determinate" } ], "quote": "In Toronto, Sūrya Ṣaṣṭhī (Bhādrapada) 1963 falls on Saturday 24 August. Ṣaṣṭhī runs from 08:56 on Sat 24 Aug to 11:16 on Sun 25 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-25", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 28, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1963-08-25T11:16:16-04:00", "utc": "1963-08-25T15:16:16Z", "ms": -200479423967.79498 }, "end": { "local": "1963-08-26T13:42:34-04:00", "utc": "1963-08-26T17:42:34Z", "ms": -200384246385.80664 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-25T11:16:16-04:00", "utc": "1963-08-25T15:16:16Z", "ms": -200479423967.79498 }, "end": { "local": "1963-08-26T13:42:34-04:00", "utc": "1963-08-26T17:42:34Z", "ms": -200384246385.80664 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-25", "window": { "start": { "local": "1963-08-25T12:55:18-04:00", "utc": "1963-08-25T16:55:18Z", "ms": -200473481943.0721 }, "end": { "local": "1963-08-25T13:43:18-04:00", "utc": "1963-08-25T17:43:18Z", "ms": -200470601943.0721 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-26", "window": { "start": { "local": "1963-08-26T12:55:01-04:00", "utc": "1963-08-26T16:55:01Z", "ms": -200387098501.29034 }, "end": { "local": "1963-08-26T13:43:01-04:00", "utc": "1963-08-26T17:43:01Z", "ms": -200384218501.29034 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 11:16 on Sun 25 Aug to 13:43 on Mon 26 Aug.", "fact": "1963-08-25T15:16:16Z → 1963-08-26T17:42:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:55–13:43 on the 25th, 12:55–13:43 on the 26th.", "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 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 28 s < 300 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Toronto, 1963: Sunday 25 August.", "fact": "confidence: boundary (margin)" } ], "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": "1963-08-25", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-25", "confidence": "determinate" } ], "quote": "In Toronto, Muktābharaṇa Vrata 1963 falls on Sunday 25 August. Saptamī runs from 11:16 on Sun 25 Aug to 13:43 on Mon 26 Aug and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken. It is 0 min 28 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-27", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 28, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-08-26T13:42:34-04:00", "utc": "1963-08-26T17:42:34Z", "ms": -200384246385.80664 }, "end": { "local": "1963-08-27T16:01:11-04:00", "utc": "1963-08-27T20:01:11Z", "ms": -200289529149.87836 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-26T13:42:34-04:00", "utc": "1963-08-26T17:42:34Z", "ms": -200384246385.80664 }, "end": { "local": "1963-08-27T16:01:11-04:00", "utc": "1963-08-27T20:01:11Z", "ms": -200289529149.87836 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-26", "window": { "start": { "local": "1963-08-26T12:55:01-04:00", "utc": "1963-08-26T16:55:01Z", "ms": -200387098501.29034 }, "end": { "local": "1963-08-26T13:43:01-04:00", "utc": "1963-08-26T17:43:01Z", "ms": -200384218501.29034 } }, "covered_min": 0, "window_min": 48, "qualifies": true }, { "local_date": "1963-08-27", "window": { "start": { "local": "1963-08-27T12:54:45-04:00", "utc": "1963-08-27T16:54:45Z", "ms": -200300715466.79797 }, "end": { "local": "1963-08-27T13:42:45-04:00", "utc": "1963-08-27T17:42:45Z", "ms": -200297835466.79797 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 13:43 on Mon 26 Aug to 16:01 on Tue 27 Aug.", "fact": "1963-08-26T17:42:34Z → 1963-08-27T20:01:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:55–13:43 on the 26th, 12:55–13:43 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. 103" }, { "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 28 s < 300 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Toronto, 1963: Tuesday 27 August.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "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": "1963-08-27", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-27", "confidence": "boundary" } ], "quote": "In Toronto, Rādhāṣṭamī 1963 falls on Tuesday 27 August. Aṣṭamī runs from 13:43 on Mon 26 Aug to 16:01 on Tue 27 Aug and covers all of madhyāhna that midday. It also reaches the previous midday for 0 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 0 min 28 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-08-30", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38179, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-08-29T19:21:37-04:00", "utc": "1963-08-29T23:21:37Z", "ms": -200104702764.14102 }, "end": { "local": "1963-08-30T20:03:12-04:00", "utc": "1963-08-31T00:03:12Z", "ms": -200015807924.04193 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-29T19:21:37-04:00", "utc": "1963-08-29T23:21:37Z", "ms": -200104702764.14102 }, "end": { "local": "1963-08-30T20:03:12-04:00", "utc": "1963-08-31T00:03:12Z", "ms": -200015807924.04193 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-08-30", "window": { "start": { "local": "1963-08-30T06:38:24-04:00", "utc": "1963-08-30T10:38:24Z", "ms": -200064096002.67227 }, "end": { "local": "1963-08-30T06:38:24-04:00", "utc": "1963-08-30T10:38:24Z", "ms": -200064096002.67227 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-08-31", "window": { "start": { "local": "1963-08-31T06:39:31-04:00", "utc": "1963-08-31T10:39:31Z", "ms": -199977628758.7987 }, "end": { "local": "1963-08-31T06:39:31-04:00", "utc": "1963-08-31T10:39:31Z", "ms": -199977628758.7987 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-08-31", "start": { "local": "1963-08-31T06:39:31-04:00", "utc": "1963-08-31T10:39:31Z", "ms": -199977628758.7987 }, "end": { "local": "1963-08-31T09:18:44-04:00", "utc": "1963-08-31T13:18:44Z", "ms": -199968076092.56778 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-08-31T19:59:03-04:00", "utc": "1963-08-31T23:59:03Z", "ms": -199929656668.83636 }, "hari_vasara_end": { "local": "1963-08-31T02:02:10-04:00", "utc": "1963-08-31T06:02:10Z", "ms": -199994270110.24054 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:22 on Thu 29 Aug to 20:03 on Fri 30 Aug.", "fact": "1963-08-29T23:21:37Z → 1963-08-31T00:03:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:38 on the 30th and 06:40 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 38179 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Toronto, 1963: Friday 30 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": "1963-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-30", "confidence": "determinate" } ], "quote": "In Toronto, Parivartanī Ekādaśī 1963 falls on Friday 30 August. Ekādaśī runs from 19:22 on Thu 29 Aug to 20:03 on Fri 30 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-08-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22650, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1963-08-30T20:03:12-04:00", "utc": "1963-08-31T00:03:12Z", "ms": -200015807924.04193 }, "end": { "local": "1963-08-31T19:59:03-04:00", "utc": "1963-08-31T23:59:03Z", "ms": -199929656668.83636 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-30T20:03:12-04:00", "utc": "1963-08-31T00:03:12Z", "ms": -200015807924.04193 }, "end": { "local": "1963-08-31T19:59:03-04:00", "utc": "1963-08-31T23:59:03Z", "ms": -199929656668.83636 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-08-30", "window": { "start": { "local": "1963-08-30T12:53:51-04:00", "utc": "1963-08-30T16:53:51Z", "ms": -200041568655.05487 }, "end": { "local": "1963-08-30T13:41:51-04:00", "utc": "1963-08-30T17:41:51Z", "ms": -200038688655.05487 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-08-31", "window": { "start": { "local": "1963-08-31T12:53:33-04:00", "utc": "1963-08-31T16:53:33Z", "ms": -199955187093.2214 }, "end": { "local": "1963-08-31T13:41:33-04:00", "utc": "1963-08-31T17:41:33Z", "ms": -199952307093.2214 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 20:03 on Fri 30 Aug to 19:59 on Sat 31 Aug.", "fact": "1963-08-31T00:03:12Z → 1963-08-31T23:59:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:54–13:42 on the 30th, 12:54–13:42 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22650 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Toronto, 1963: Saturday 31 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vamana-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-31", "confidence": "determinate" } ], "quote": "In Toronto, Vāmana Jayantī 1963 falls on Saturday 31 August. Dvādaśī runs from 20:03 on Fri 30 Aug to 19:59 on Sat 31 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/pradosha-vrata?on=1963-08-31", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-08-31", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 209, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-08-31T19:59:03-04:00", "utc": "1963-08-31T23:59:03Z", "ms": -199929656668.83636 }, "end": { "local": "1963-09-01T19:09:37-04:00", "utc": "1963-09-01T23:09:37Z", "ms": -199846223092.0767 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-08-31T19:59:03-04:00", "utc": "1963-08-31T23:59:03Z", "ms": -199929656668.83636 }, "end": { "local": "1963-09-01T19:09:37-04:00", "utc": "1963-09-01T23:09:37Z", "ms": -199846223092.0767 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-08-31", "window": { "start": { "local": "1963-08-31T19:55:35-04:00", "utc": "1963-08-31T23:55:35Z", "ms": -199929865427.6441 }, "end": { "local": "1963-08-31T21:21:35-04:00", "utc": "1963-09-01T01:21:35Z", "ms": -199924704912.27527 } }, "covered_min": 83, "window_min": 86, "qualifies": true }, { "local_date": "1963-09-01", "window": { "start": { "local": "1963-09-01T19:53:50-04:00", "utc": "1963-09-01T23:53:50Z", "ms": -199843570149.15158 }, "end": { "local": "1963-09-01T21:20:13-04:00", "utc": "1963-09-02T01:20:13Z", "ms": -199838386717.04474 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:59 on Sat 31 Aug to 19:10 on Sun 1 Sep.", "fact": "1963-08-31T23:59:03Z → 1963-09-01T23:09:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:56–21:22 on the 31st, 19:54–21:20 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 83 of 86 minutes on the 31st and 0 of 86 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 209 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Saturday 31 August.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-08-31", "confidence": "boundary" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Saturday 31 August. Trayodaśī runs from 19:59 on Sat 31 Aug to 19:10 on Sun 1 Sep and covers 83 of 86 minutes of pradoṣa that evening. It is 3 min 29 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-08-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29944, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-09-01T19:09:37-04:00", "utc": "1963-09-01T23:09:37Z", "ms": -199846223092.0767 }, "end": { "local": "1963-09-02T17:38:53-04:00", "utc": "1963-09-02T21:38:53Z", "ms": -199765266504.7979 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1963-09-01T19:09:37-04:00", "utc": "1963-09-01T23:09:37Z", "ms": -199846223092.0767 }, "end": { "local": "1963-09-02T17:38:53-04:00", "utc": "1963-09-02T21:38:53Z", "ms": -199765266504.7979 } }, "kaala": "udaya-3", "days": [ { "local_date": "1963-09-01", "window": { "start": { "local": "1963-09-01T06:40:38-04:00", "utc": "1963-09-01T10:40:38Z", "ms": -199891161562.37787 }, "end": { "local": "1963-09-01T09:19:17-04:00", "utc": "1963-09-01T13:19:17Z", "ms": -199881643279.7326 } }, "covered_min": 0, "window_min": 159, "qualifies": false }, { "local_date": "1963-09-02", "window": { "start": { "local": "1963-09-02T06:41:46-04:00", "utc": "1963-09-02T10:41:46Z", "ms": -199804694408.35025 }, "end": { "local": "1963-09-02T09:19:49-04:00", "utc": "1963-09-02T13:19:49Z", "ms": -199795210614.27405 } }, "covered_min": 158, "window_min": 158, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:10 on Sun 1 Sep to 17:39 on Mon 2 Sep.", "fact": "1963-09-01T23:09:37Z → 1963-09-02T21:38:53Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:41–09:19 on the 1st, 06:42–09:20 on the 2nd.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 0 of 159 minutes on the 1st and 158 of 158 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one morning qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29944 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Toronto, 1963: Monday 2 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": "1963-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-02", "confidence": "determinate" } ], "quote": "In Toronto, Ananta Caturdaśī 1963 falls on Monday 2 September. Caturdaśī runs from 19:10 on Sun 1 Sep to 17:39 on Mon 2 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-09-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23501, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-09-06T07:15:08-04:00", "utc": "1963-09-06T11:15:08Z", "ms": -199457091754.58258 }, "end": { "local": "1963-09-07T04:18:13-04:00", "utc": "1963-09-07T08:18:13Z", "ms": -199381306709.57788 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-06T07:15:08-04:00", "utc": "1963-09-06T11:15:08Z", "ms": -199457091754.58258 }, "end": { "local": "1963-09-07T04:18:13-04:00", "utc": "1963-09-07T08:18:13Z", "ms": -199381306709.57788 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-09-05", "window": { "start": { "local": "1963-09-05T21:16:34-04:00", "utc": "1963-09-06T01:16:34Z", "ms": -199493006111.557 }, "end": { "local": "1963-09-05T21:16:34-04:00", "utc": "1963-09-06T01:16:34Z", "ms": -199493006111.557 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-09-06", "window": { "start": { "local": "1963-09-06T21:46:32-04:00", "utc": "1963-09-07T01:46:32Z", "ms": -199404807652.687 }, "end": { "local": "1963-09-06T21:46:32-04:00", "utc": "1963-09-07T01:46:32Z", "ms": -199404807652.687 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:15 on Fri 6 Sep to 04:18 on Sat 7 Sep.", "fact": "1963-09-06T11:15:08Z → 1963-09-07T08:18:13Z" }, { "step": "kaala", "text": "Moonrise is at 21:17 on the 5th and 21:47 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23501 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Friday 6 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-06", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Friday 6 September. Caturthī runs from 07:15 on Fri 6 Sep to 04:18 on Sat 7 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-09-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-08", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 125, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1963-09-08T01:29:32-04:00", "utc": "1963-09-08T05:29:32Z", "ms": -199305027683.02887 }, "end": { "local": "1963-09-08T22:55:32-04:00", "utc": "1963-09-09T02:55:32Z", "ms": -199227868232.531 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-08T01:29:32-04:00", "utc": "1963-09-08T05:29:32Z", "ms": -199305027683.02887 }, "end": { "local": "1963-09-08T22:55:32-04:00", "utc": "1963-09-09T02:55:32Z", "ms": -199227868232.531 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-09-07", "window": { "start": { "local": "1963-09-07T22:18:18-04:00", "utc": "1963-09-08T02:18:18Z", "ms": -199316501988.573 }, "end": { "local": "1963-09-07T22:18:18-04:00", "utc": "1963-09-08T02:18:18Z", "ms": -199316501988.573 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-09-08", "window": { "start": { "local": "1963-09-08T22:53:27-04:00", "utc": "1963-09-09T02:53:27Z", "ms": -199227992748.761 }, "end": { "local": "1963-09-08T22:53:27-04:00", "utc": "1963-09-09T02:53:27Z", "ms": -199227992748.761 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 01:30 on Sun 8 Sep to 22:56 on Sun 8 Sep.", "fact": "1963-09-08T05:29:32Z → 1963-09-09T02:55:32Z" }, { "step": "kaala", "text": "Moonrise is at 22:18 on the 7th and 22:53 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 7th and is on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 125 s < 300 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Toronto, 1963: Sunday 8 September.", "fact": "confidence: boundary (margin)" } ], "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": "1963-09-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-07", "confidence": "boundary" } ], "quote": "In Toronto, Candra Ṣaṣṭhī 1963 falls on Sunday 8 September. Ṣaṣṭhī runs from 01:30 on Sun 8 Sep to 22:56 on Sun 8 Sep and is current at moonrise that day. It is 2 min 05 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1682, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-09-09T20:41:02-04:00", "utc": "1963-09-10T00:41:02Z", "ms": -199149537986.5565 }, "end": { "local": "1963-09-10T18:49:10-04:00", "utc": "1963-09-10T22:49:10Z", "ms": -199069849930.12393 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-09T20:41:02-04:00", "utc": "1963-09-10T00:41:02Z", "ms": -199149537986.5565 }, "end": { "local": "1963-09-10T18:49:10-04:00", "utc": "1963-09-10T22:49:10Z", "ms": -199069849930.12393 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-09-09", "window": { "start": { "local": "1963-09-09T19:39:34-04:00", "utc": "1963-09-09T23:39:34Z", "ms": -199153225537.8825 }, "end": { "local": "1963-09-09T21:09:04-04:00", "utc": "1963-09-10T01:09:04Z", "ms": -199147856474.61627 } }, "covered_min": 28, "window_min": 89, "qualifies": true }, { "local_date": "1963-09-10", "window": { "start": { "local": "1963-09-10T19:37:46-04:00", "utc": "1963-09-10T23:37:46Z", "ms": -199066934175.38104 }, "end": { "local": "1963-09-10T21:07:38-04:00", "utc": "1963-09-11T01:07:38Z", "ms": -199061541665.09985 } }, "covered_min": 0, "window_min": 90, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 20:41 on Mon 9 Sep to 18:49 on Tue 10 Sep.", "fact": "1963-09-10T00:41:02Z → 1963-09-10T22:49:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:40–21:09 on the 9th, 19:38–21:08 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 28 of 89 minutes on the 9th and 0 of 90 on the 10th.", "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 1682 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Toronto, 1963: Monday 9 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "jitashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-09", "confidence": "determinate" } ], "quote": "In Toronto, Jitāṣṭamī (Jitiya) 1963 falls on Monday 9 September. Aṣṭamī runs from 20:41 on Mon 9 Sep to 18:49 on Tue 10 Sep and covers 28 of 89 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10354, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-09-09T20:41:02-04:00", "utc": "1963-09-10T00:41:02Z", "ms": -199149537986.5565 }, "end": { "local": "1963-09-10T18:49:10-04:00", "utc": "1963-09-10T22:49:10Z", "ms": -199069849930.12393 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-09T20:41:02-04:00", "utc": "1963-09-10T00:41:02Z", "ms": -199149537986.5565 }, "end": { "local": "1963-09-10T18:49:10-04:00", "utc": "1963-09-10T22:49:10Z", "ms": -199069849930.12393 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-09-09", "window": { "start": { "local": "1963-09-09T23:33:36-04:00", "utc": "1963-09-10T03:33:36Z", "ms": -199139183661.43527 }, "end": { "local": "1963-09-09T23:33:36-04:00", "utc": "1963-09-10T03:33:36Z", "ms": -199139183661.43527 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-09-10", "window": { "start": { "local": "1963-09-11T00:20:04-04:00", "utc": "1963-09-11T04:20:04Z", "ms": -199049996073.1341 }, "end": { "local": "1963-09-11T00:20:04-04:00", "utc": "1963-09-11T04:20:04Z", "ms": -199049996073.1341 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 20:41 on Mon 9 Sep to 18:49 on Tue 10 Sep.", "fact": "1963-09-10T00:41:02Z → 1963-09-10T22:49:10Z" }, { "step": "kaala", "text": "Moonrise is at 23:34 on the 9th and 00:20 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 9th and is not on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10354 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Toronto, 1963: Monday 9 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-09", "confidence": "determinate" } ], "quote": "In Toronto, Mahālakṣmī Vrata Samāpana 1963 falls on Monday 9 September. Aṣṭamī runs from 20:41 on Mon 9 Sep to 18:49 on Tue 10 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-09-13", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31459, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-09-12T16:18:01-04:00", "utc": "1963-09-12T20:18:01Z", "ms": -198906119295.42734 }, "end": { "local": "1963-09-13T15:38:23-04:00", "utc": "1963-09-13T19:38:23Z", "ms": -198822096624.9816 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-12T16:18:01-04:00", "utc": "1963-09-12T20:18:01Z", "ms": -198906119295.42734 }, "end": { "local": "1963-09-13T15:38:23-04:00", "utc": "1963-09-13T19:38:23Z", "ms": -198822096624.9816 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-09-12", "window": { "start": { "local": "1963-09-12T06:52:57-04:00", "utc": "1963-09-12T10:52:57Z", "ms": -198940023080.89633 }, "end": { "local": "1963-09-12T06:52:57-04:00", "utc": "1963-09-12T10:52:57Z", "ms": -198940023080.89633 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-09-13", "window": { "start": { "local": "1963-09-13T06:54:04-04:00", "utc": "1963-09-13T10:54:04Z", "ms": -198853555755.5994 }, "end": { "local": "1963-09-13T06:54:04-04:00", "utc": "1963-09-13T10:54:04Z", "ms": -198853555755.5994 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-09-14", "start": { "local": "1963-09-14T06:55:12-04:00", "utc": "1963-09-14T10:55:12Z", "ms": -198767088367.16818 }, "end": { "local": "1963-09-14T09:26:15-04:00", "utc": "1963-09-14T13:26:15Z", "ms": -198758024935.8225 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-09-14T15:21:53-04:00", "utc": "1963-09-14T19:21:53Z", "ms": -198736687489.80746 }, "hari_vasara_end": { "local": "1963-09-13T21:34:16-04:00", "utc": "1963-09-14T01:34:16Z", "ms": -198800744341.18805 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:18 on Thu 12 Sep to 15:38 on Fri 13 Sep.", "fact": "1963-09-12T20:18:01Z → 1963-09-13T19:38:23Z" }, { "step": "kaala", "text": "Sunrise is at 06:53 on the 12th and 06:54 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31459 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Toronto, 1963: Friday 13 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-13", "confidence": "determinate" } ], "quote": "In Toronto, Indirā Ekādaśī 1963 falls on Friday 13 September. Ekādaśī runs from 16:18 on Thu 12 Sep to 15:38 on Fri 13 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-09-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-09-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14430, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-09-14T15:21:53-04:00", "utc": "1963-09-14T19:21:53Z", "ms": -198736687489.80746 }, "end": { "local": "1963-09-15T15:28:09-04:00", "utc": "1963-09-15T19:28:09Z", "ms": -198649911115.82202 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-14T15:21:53-04:00", "utc": "1963-09-14T19:21:53Z", "ms": -198736687489.80746 }, "end": { "local": "1963-09-15T15:28:09-04:00", "utc": "1963-09-15T19:28:09Z", "ms": -198649911115.82202 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-09-14", "window": { "start": { "local": "1963-09-14T19:30:29-04:00", "utc": "1963-09-14T23:30:29Z", "ms": -198721771210.43988 }, "end": { "local": "1963-09-14T21:01:55-04:00", "utc": "1963-09-15T01:01:55Z", "ms": -198716284503.79105 } }, "covered_min": 91, "window_min": 91, "qualifies": true }, { "local_date": "1963-09-15", "window": { "start": { "local": "1963-09-15T19:28:39-04:00", "utc": "1963-09-15T23:28:39Z", "ms": -198635480949.1885 }, "end": { "local": "1963-09-15T21:00:29-04:00", "utc": "1963-09-16T01:00:29Z", "ms": -198629970606.71826 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:22 on Sat 14 Sep to 15:28 on Sun 15 Sep.", "fact": "1963-09-14T19:21:53Z → 1963-09-15T19:28:09Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:30–21:02 on the 14th, 19:29–21:00 on the 15th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 91 of 91 minutes on the 14th and 0 of 92 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14430 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Saturday 14 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": "1963-09-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-14", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Saturday 14 September. Trayodaśī runs from 15:22 on Sat 14 Sep to 15:28 on Sun 15 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-09-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-09-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31872, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-09-15T15:28:09-04:00", "utc": "1963-09-15T19:28:09Z", "ms": -198649911115.82202 }, "end": { "local": "1963-09-16T15:57:30-04:00", "utc": "1963-09-16T19:57:30Z", "ms": -198561750162.45016 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-15T15:28:09-04:00", "utc": "1963-09-15T19:28:09Z", "ms": -198649911115.82202 }, "end": { "local": "1963-09-16T15:57:30-04:00", "utc": "1963-09-16T19:57:30Z", "ms": -198561750162.45016 } }, "kaala": "nishita", "days": [ { "local_date": "1963-09-15", "window": { "start": { "local": "1963-09-16T00:49:03-04:00", "utc": "1963-09-16T04:49:03Z", "ms": -198616257164.92505 }, "end": { "local": "1963-09-16T01:37:03-04:00", "utc": "1963-09-16T05:37:03Z", "ms": -198613377164.92505 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-09-16", "window": { "start": { "local": "1963-09-17T00:48:42-04:00", "utc": "1963-09-17T04:48:42Z", "ms": -198529878298.57483 }, "end": { "local": "1963-09-17T01:36:42-04:00", "utc": "1963-09-17T05:36:42Z", "ms": -198526998298.57483 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:28 on Sun 15 Sep to 15:57 on Mon 16 Sep.", "fact": "1963-09-15T19:28:09Z → 1963-09-16T19:57:30Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:49–01:37 on the 15th, 00:49–01:37 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31872 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Sunday 15 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-15", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Sunday 15 September. Caturdaśī runs from 15:28 on Sun 15 Sep to 15:57 on Mon 16 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-09-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-17", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 300, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1963-09-16T15:57:30-04:00", "utc": "1963-09-16T19:57:30Z", "ms": -198561750162.45016 }, "end": { "local": "1963-09-17T16:50:43-04:00", "utc": "1963-09-17T20:50:43Z", "ms": -198472157416.6468 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-16T15:57:30-04:00", "utc": "1963-09-16T19:57:30Z", "ms": -198561750162.45016 }, "end": { "local": "1963-09-17T16:50:43-04:00", "utc": "1963-09-17T20:50:43Z", "ms": -198472157416.6468 } }, "kaala": "aparahna", "days": [ { "local_date": "1963-09-16", "window": { "start": { "local": "1963-09-16T14:27:04-04:00", "utc": "1963-09-16T18:27:04Z", "ms": -198567175847.2028 }, "end": { "local": "1963-09-16T16:56:57-04:00", "utc": "1963-09-16T20:56:57Z", "ms": -198558183336.04984 } }, "covered_min": 59, "window_min": 150, "qualifies": true }, { "local_date": "1963-09-17", "window": { "start": { "local": "1963-09-17T14:26:25-04:00", "utc": "1963-09-17T18:26:25Z", "ms": -198480814795.1123 }, "end": { "local": "1963-09-17T16:55:42-04:00", "utc": "1963-09-17T20:55:42Z", "ms": -198471857802.73218 } }, "covered_min": 144, "window_min": 149, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 15:57 on Mon 16 Sep to 16:51 on Tue 17 Sep.", "fact": "1963-09-16T19:57:30Z → 1963-09-17T20:50:43Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 14:27–16:57 on the 16th, 14:26–16:56 on the 17th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 59 of 150 minutes on the 16th and 144 of 149 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 300 s < 300 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Toronto, 1963: Tuesday 17 September.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-09-17", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-17", "confidence": "boundary" } ], "quote": "In Toronto, Mahālaya Amāvāsyā 1963 falls on Tuesday 17 September. Amāvasyā runs from 15:57 on Mon 16 Sep to 16:51 on Tue 17 Sep and covers 144 of 149 minutes of aparāhṇa that afternoon. It also reaches the previous afternoon for 59 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 5 min 00 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11696, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1963-09-17T16:50:43-04:00", "utc": "1963-09-17T20:50:43Z", "ms": -198472157416.6468 }, "end": { "local": "1963-09-18T18:08:35-04:00", "utc": "1963-09-18T22:08:35Z", "ms": -198381085481.58954 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-17T16:50:43-04:00", "utc": "1963-09-17T20:50:43Z", "ms": -198472157416.6468 }, "end": { "local": "1963-09-18T18:08:35-04:00", "utc": "1963-09-18T22:08:35Z", "ms": -198381085481.58954 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-09-17", "window": { "start": { "local": "1963-09-17T12:47:47-04:00", "utc": "1963-09-17T16:47:47Z", "ms": -198486733291.30237 }, "end": { "local": "1963-09-17T13:35:47-04:00", "utc": "1963-09-17T17:35:47Z", "ms": -198483853291.30237 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-09-18", "window": { "start": { "local": "1963-09-18T12:47:26-04:00", "utc": "1963-09-18T16:47:26Z", "ms": -198400354479.01648 }, "end": { "local": "1963-09-18T13:35:26-04:00", "utc": "1963-09-18T17:35:26Z", "ms": -198397474479.01648 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 16:51 on Tue 17 Sep to 18:09 on Wed 18 Sep.", "fact": "1963-09-17T20:50:43Z → 1963-09-18T22:08:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:48–13:36 on the 17th, 12:47–13:35 on the 18th.", "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 17th and 48 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: paraviddha → only-day · margin 11696 s" }, { "step": "ruling", "text": "Navarātrārambha, Toronto, 1963: Wednesday 18 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-18", "confidence": "determinate" } ], "quote": "In Toronto, Navarātrārambha (Navratri) 1963 falls on Wednesday 18 September. Pratipadā runs from 16:51 on Tue 17 Sep to 18:09 on Wed 18 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-09-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30094, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-09-20T21:56:17-04:00", "utc": "1963-09-21T01:56:17Z", "ms": -198194623044.3554 }, "end": { "local": "1963-09-22T00:19:31-04:00", "utc": "1963-09-22T04:19:31Z", "ms": -198099628628.03348 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-20T21:56:17-04:00", "utc": "1963-09-21T01:56:17Z", "ms": -198194623044.3554 }, "end": { "local": "1963-09-22T00:19:31-04:00", "utc": "1963-09-22T04:19:31Z", "ms": -198099628628.03348 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-09-20", "window": { "start": { "local": "1963-09-20T12:46:43-04:00", "utc": "1963-09-20T16:46:43Z", "ms": -198227596784.5904 }, "end": { "local": "1963-09-20T13:34:43-04:00", "utc": "1963-09-20T17:34:43Z", "ms": -198224716784.5904 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-09-21", "window": { "start": { "local": "1963-09-21T12:46:22-04:00", "utc": "1963-09-21T16:46:22Z", "ms": -198141217867.73096 }, "end": { "local": "1963-09-21T13:34:22-04:00", "utc": "1963-09-21T17:34:22Z", "ms": -198138337867.73096 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:56 on Fri 20 Sep to 00:20 on Sun 22 Sep.", "fact": "1963-09-21T01:56:17Z → 1963-09-22T04:19:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:47–13:35 on the 20th, 12:46–13:34 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30094 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Saturday 21 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-21", "confidence": "determinate" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Saturday 21 September. Caturthī runs from 21:56 on Fri 20 Sep to 00:20 on Sun 22 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-09-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 929, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1963-09-24T05:24:06-04:00", "utc": "1963-09-24T09:24:06Z", "ms": -197908554053.4475 }, "end": { "local": "1963-09-25T07:40:20-04:00", "utc": "1963-09-25T11:40:20Z", "ms": -197813979709.21036 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-24T05:24:06-04:00", "utc": "1963-09-24T09:24:06Z", "ms": -197908554053.4475 }, "end": { "local": "1963-09-25T07:40:20-04:00", "utc": "1963-09-25T11:40:20Z", "ms": -197813979709.21036 } }, "kaala": "udaya-1", "days": [ { "local_date": "1963-09-24", "window": { "start": { "local": "1963-09-24T07:06:30-04:00", "utc": "1963-09-24T11:06:30Z", "ms": -197902409794.49048 }, "end": { "local": "1963-09-24T07:54:53-04:00", "utc": "1963-09-24T11:54:53Z", "ms": -197899507238.0445 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-09-25", "window": { "start": { "local": "1963-09-25T07:07:39-04:00", "utc": "1963-09-25T11:07:39Z", "ms": -197815941321.41687 }, "end": { "local": "1963-09-25T07:55:49-04:00", "utc": "1963-09-25T11:55:49Z", "ms": -197813050653.32025 } }, "covered_min": 33, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 05:24 on Tue 24 Sep to 07:40 on Wed 25 Sep.", "fact": "1963-09-24T09:24:06Z → 1963-09-25T11:40:20Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 07:07–07:55 on the 24th, 07:08–07:56 on the 25th.", "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 48 of 48 minutes on the 24th and 33 of 48 on the 25th.", "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 929 s" }, { "step": "ruling", "text": "Durgā Saptamī, Toronto, 1963: Tuesday 24 September.", "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": "1963-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-24", "confidence": "determinate" } ], "quote": "In Toronto, Durgā Saptamī 1963 falls on Tuesday 24 September. Saptamī runs from 05:24 on Tue 24 Sep to 07:40 on Wed 25 Sep and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11828, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-09-25T07:40:20-04:00", "utc": "1963-09-25T11:40:20Z", "ms": -197813979709.21036 }, "end": { "local": "1963-09-26T09:27:30-04:00", "utc": "1963-09-26T13:27:30Z", "ms": -197721149739.74274 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-25T07:40:20-04:00", "utc": "1963-09-25T11:40:20Z", "ms": -197813979709.21036 }, "end": { "local": "1963-09-26T09:27:30-04:00", "utc": "1963-09-26T13:27:30Z", "ms": -197721149739.74274 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-09-25", "window": { "start": { "local": "1963-09-25T12:44:59-04:00", "utc": "1963-09-25T16:44:59Z", "ms": -197795701310.6922 }, "end": { "local": "1963-09-25T13:32:59-04:00", "utc": "1963-09-25T17:32:59Z", "ms": -197792821310.6922 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-09-26", "window": { "start": { "local": "1963-09-26T12:44:38-04:00", "utc": "1963-09-26T16:44:38Z", "ms": -197709321853.55353 }, "end": { "local": "1963-09-26T13:32:38-04:00", "utc": "1963-09-26T17:32:38Z", "ms": -197706441853.55353 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 07:40 on Wed 25 Sep to 09:28 on Thu 26 Sep.", "fact": "1963-09-25T11:40:20Z → 1963-09-26T13:27:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 25th, 12:45–13:33 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11828 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Toronto, 1963: Wednesday 25 September.", "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": "1963-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-25", "confidence": "determinate" } ], "quote": "In Toronto, Mahāṣṭamī (Durga Ashtami) 1963 falls on Wednesday 25 September. Aṣṭamī runs from 07:40 on Wed 25 Sep to 09:28 on Thu 26 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7828, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1963-09-26T09:27:30-04:00", "utc": "1963-09-26T13:27:30Z", "ms": -197721149739.74274 }, "end": { "local": "1963-09-27T10:33:50-04:00", "utc": "1963-09-27T14:33:50Z", "ms": -197630770157.80035 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-26T09:27:30-04:00", "utc": "1963-09-26T13:27:30Z", "ms": -197721149739.74274 }, "end": { "local": "1963-09-27T10:33:50-04:00", "utc": "1963-09-27T14:33:50Z", "ms": -197630770157.80035 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-09-26", "window": { "start": { "local": "1963-09-26T12:44:38-04:00", "utc": "1963-09-26T16:44:38Z", "ms": -197709321853.55353 }, "end": { "local": "1963-09-26T13:32:38-04:00", "utc": "1963-09-26T17:32:38Z", "ms": -197706441853.55353 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-09-27", "window": { "start": { "local": "1963-09-27T12:44:18-04:00", "utc": "1963-09-27T16:44:18Z", "ms": -197622942229.46893 }, "end": { "local": "1963-09-27T13:32:18-04:00", "utc": "1963-09-27T17:32:18Z", "ms": -197620062229.46893 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 09:28 on Thu 26 Sep to 10:34 on Fri 27 Sep.", "fact": "1963-09-26T13:27:30Z → 1963-09-27T14:33:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 26th, 12:44–13:32 on the 27th.", "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 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 7828 s" }, { "step": "ruling", "text": "Mahānavamī, Toronto, 1963: Thursday 26 September.", "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": "1963-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-26", "confidence": "determinate" } ], "quote": "In Toronto, Mahānavamī 1963 falls on Thursday 26 September. Navamī runs from 09:28 on Thu 26 Sep to 10:34 on Fri 27 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3860, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1963-09-27T10:33:50-04:00", "utc": "1963-09-27T14:33:50Z", "ms": -197630770157.80035 }, "end": { "local": "1963-09-28T10:51:26-04:00", "utc": "1963-09-28T14:51:26Z", "ms": -197543314131.0376 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1963-09-28T08:15:25-04:00", "utc": "1963-09-28T12:15:25Z", "ms": -197552675008.66653 }, "end": { "local": "1963-09-28T10:51:26-04:00", "utc": "1963-09-28T14:51:26Z", "ms": -197543314131.0376 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1963-09-28T08:15:25-04:00", "utc": "1963-09-28T12:15:25Z", "ms": -197552675008.66653 }, "end": { "local": "1963-09-29T08:26:31-04:00", "utc": "1963-09-29T12:26:31Z", "ms": -197465608772.44492 } } }, "kaala": "daytime", "days": [ { "local_date": "1963-09-27", "window": { "start": { "local": "1963-09-27T07:09:56-04:00", "utc": "1963-09-27T11:09:56Z", "ms": -197643003932.92703 }, "end": { "local": "1963-09-27T19:06:39-04:00", "utc": "1963-09-27T23:06:39Z", "ms": -197600000526.01086 } }, "covered_min": 0, "window_min": 717, "qualifies": false }, { "local_date": "1963-09-28", "window": { "start": { "local": "1963-09-28T07:11:05-04:00", "utc": "1963-09-28T11:11:05Z", "ms": -197556534997.78522 }, "end": { "local": "1963-09-28T19:04:50-04:00", "utc": "1963-09-28T23:04:50Z", "ms": -197513709837.40097 } }, "covered_min": 156, "window_min": 714, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 10:34 on Fri 27 Sep to 10:51 on Sat 28 Sep, and Śravaṇa from 08:15 on Sat 28 Sep to 08:27 on Sun 29 Sep. They are together from 08:15 on Sat 28 Sep to 10:51 on Sat 28 Sep.", "fact": "1963-09-28T12:15:25Z → 1963-09-28T14:51:26Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 07:10–19:07 on the 27th, 07:11–19:05 on the 28th.", "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 717 minutes on the 27th and 156 of 714 on the 28th.", "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 3860 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Toronto, 1963: Saturday 28 September.", "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": "1963-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-28", "confidence": "determinate" } ], "quote": "In Toronto, Vijayā Daśamī (Dussehra) 1963 falls on Saturday 28 September. Daśamī runs from 10:34 on Fri 27 Sep to 10:51 on Sat 28 Sep and is with Śravaṇa in the day time that day, for 156 minutes.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-09-29", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11097, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-09-28T10:51:26-04:00", "utc": "1963-09-28T14:51:26Z", "ms": -197543314131.0376 }, "end": { "local": "1963-09-29T10:17:11-04:00", "utc": "1963-09-29T14:17:11Z", "ms": -197458969146.58044 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-28T10:51:26-04:00", "utc": "1963-09-28T14:51:26Z", "ms": -197543314131.0376 }, "end": { "local": "1963-09-29T10:17:11-04:00", "utc": "1963-09-29T14:17:11Z", "ms": -197458969146.58044 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-09-28", "window": { "start": { "local": "1963-09-28T07:11:05-04:00", "utc": "1963-09-28T11:11:05Z", "ms": -197556534997.78522 }, "end": { "local": "1963-09-28T07:11:05-04:00", "utc": "1963-09-28T11:11:05Z", "ms": -197556534997.78522 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-09-29", "window": { "start": { "local": "1963-09-29T07:12:14-04:00", "utc": "1963-09-29T11:12:14Z", "ms": -197470065887.68735 }, "end": { "local": "1963-09-29T07:12:14-04:00", "utc": "1963-09-29T11:12:14Z", "ms": -197470065887.68735 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-09-30", "start": { "local": "1963-09-30T07:13:23-04:00", "utc": "1963-09-30T11:13:23Z", "ms": -197383596590.6249 }, "end": { "local": "1963-09-30T08:52:37-04:00", "utc": "1963-09-30T12:52:37Z", "ms": -197377643396.9847 }, "basis": "pratah", "ends_with_dvadashi": true, "dvadashi_end": { "local": "1963-09-30T08:52:37-04:00", "utc": "1963-09-30T12:52:37Z", "ms": -197377643396.9847 }, "hari_vasara_end": { "local": "1963-09-29T15:56:02-04:00", "utc": "1963-09-29T19:56:02Z", "ms": -197438637709.18152 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:51 on Sat 28 Sep to 10:17 on Sun 29 Sep.", "fact": "1963-09-28T14:51:26Z → 1963-09-29T14:17:11Z" }, { "step": "kaala", "text": "Sunrise is at 07:11 on the 28th and 07:12 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 11097 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Toronto, 1963: Sunday 29 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": "1963-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-29", "confidence": "determinate" } ], "quote": "In Toronto, Pāśāṅkuśā Ekādaśī 1963 falls on Sunday 29 September. Ekādaśī runs from 10:51 on Sat 28 Sep to 10:17 on Sun 29 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-09-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-09-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36248, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-09-30T08:52:37-04:00", "utc": "1963-09-30T12:52:37Z", "ms": -197377643396.9847 }, "end": { "local": "1963-10-01T06:43:07-04:00", "utc": "1963-10-01T10:43:07Z", "ms": -197299013100.36746 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1963-09-30T08:52:37-04:00", "utc": "1963-09-30T12:52:37Z", "ms": -197377643396.9847 }, "end": { "local": "1963-10-01T06:43:07-04:00", "utc": "1963-10-01T10:43:07Z", "ms": -197299013100.36746 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-09-29", "window": { "start": { "local": "1963-09-29T19:03:01-04:00", "utc": "1963-09-29T23:03:01Z", "ms": -197427418905.0864 }, "end": { "local": "1963-09-29T20:40:24-04:00", "utc": "1963-09-30T00:40:24Z", "ms": -197421575929.82486 } }, "covered_min": 0, "window_min": 97, "qualifies": false }, { "local_date": "1963-09-30", "window": { "start": { "local": "1963-09-30T19:01:12-04:00", "utc": "1963-09-30T23:01:12Z", "ms": -197341127696.394 }, "end": { "local": "1963-09-30T20:38:59-04:00", "utc": "1963-10-01T00:38:59Z", "ms": -197335260949.31357 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:53 on Mon 30 Sep to 06:43 on Tue 1 Oct.", "fact": "1963-09-30T12:52:37Z → 1963-10-01T10:43:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:03–20:40 on the 29th, 19:01–20:39 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 0 of 97 minutes on the 29th and 98 of 98 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 36248 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Monday 30 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": "1963-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-09-30", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Monday 30 September. Trayodaśī runs from 08:53 on Mon 30 Sep to 06:43 on Tue 1 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-09-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23867, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-10-05T14:12:42-04:00", "utc": "1963-10-05T18:12:42Z", "ms": -196926438301.8232 }, "end": { "local": "1963-10-06T10:59:44-04:00", "utc": "1963-10-06T14:59:44Z", "ms": -196851616303.48694 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-05T14:12:42-04:00", "utc": "1963-10-05T18:12:42Z", "ms": -196926438301.8232 }, "end": { "local": "1963-10-06T10:59:44-04:00", "utc": "1963-10-06T14:59:44Z", "ms": -196851616303.48694 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-10-05", "window": { "start": { "local": "1963-10-05T20:50:29-04:00", "utc": "1963-10-06T00:50:29Z", "ms": -196902570851.33795 }, "end": { "local": "1963-10-05T20:50:29-04:00", "utc": "1963-10-06T00:50:29Z", "ms": -196902570851.33795 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-10-06", "window": { "start": { "local": "1963-10-06T21:29:48-04:00", "utc": "1963-10-07T01:29:48Z", "ms": -196813811580.11517 }, "end": { "local": "1963-10-06T21:29:48-04:00", "utc": "1963-10-07T01:29:48Z", "ms": -196813811580.11517 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:13 on Sat 5 Oct to 11:00 on Sun 6 Oct.", "fact": "1963-10-05T18:12:42Z → 1963-10-06T14:59:44Z" }, { "step": "kaala", "text": "Moonrise is at 20:50 on the 5th and 21:30 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 5th and is not on the 6th.", "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 23867 s" }, { "step": "ruling", "text": "Karaka Caturthī, Toronto, 1963: Saturday 5 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": "1963-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-05", "confidence": "determinate" } ], "quote": "In Toronto, Karaka Caturthī (Karwa Chauth) 1963 falls on Saturday 5 October. Caturthī runs from 14:13 on Sat 5 Oct to 11:00 on Sun 6 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-10-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23867, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-10-05T14:12:42-04:00", "utc": "1963-10-05T18:12:42Z", "ms": -196926438301.8232 }, "end": { "local": "1963-10-06T10:59:44-04:00", "utc": "1963-10-06T14:59:44Z", "ms": -196851616303.48694 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-05T14:12:42-04:00", "utc": "1963-10-05T18:12:42Z", "ms": -196926438301.8232 }, "end": { "local": "1963-10-06T10:59:44-04:00", "utc": "1963-10-06T14:59:44Z", "ms": -196851616303.48694 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-10-05", "window": { "start": { "local": "1963-10-05T20:50:29-04:00", "utc": "1963-10-06T00:50:29Z", "ms": -196902570851.33795 }, "end": { "local": "1963-10-05T20:50:29-04:00", "utc": "1963-10-06T00:50:29Z", "ms": -196902570851.33795 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-10-06", "window": { "start": { "local": "1963-10-06T21:29:48-04:00", "utc": "1963-10-07T01:29:48Z", "ms": -196813811580.11517 }, "end": { "local": "1963-10-06T21:29:48-04:00", "utc": "1963-10-07T01:29:48Z", "ms": -196813811580.11517 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:13 on Sat 5 Oct to 11:00 on Sun 6 Oct.", "fact": "1963-10-05T18:12:42Z → 1963-10-06T14:59:44Z" }, { "step": "kaala", "text": "Moonrise is at 20:50 on the 5th and 21:30 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is 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 23867 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Saturday 5 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": "1963-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-05", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Saturday 5 October. Caturthī runs from 14:13 on Sat 5 Oct to 11:00 on Sun 6 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-10-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10267, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-10-09T04:06:03-04:00", "utc": "1963-10-09T08:06:03Z", "ms": -196617237046.91507 }, "end": { "local": "1963-10-10T02:57:00-04:00", "utc": "1963-10-10T06:57:00Z", "ms": -196534979775.25644 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-09T04:06:03-04:00", "utc": "1963-10-09T08:06:03Z", "ms": -196617237046.91507 }, "end": { "local": "1963-10-10T02:57:00-04:00", "utc": "1963-10-10T06:57:00Z", "ms": -196534979775.25644 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-10-08", "window": { "start": { "local": "1963-10-08T23:07:29-04:00", "utc": "1963-10-09T03:07:29Z", "ms": -196635151243.09375 }, "end": { "local": "1963-10-08T23:07:29-04:00", "utc": "1963-10-09T03:07:29Z", "ms": -196635151243.09375 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-10-09", "window": { "start": { "local": "1963-10-10T00:05:53-04:00", "utc": "1963-10-10T04:05:53Z", "ms": -196545246817.42654 }, "end": { "local": "1963-10-10T00:05:53-04:00", "utc": "1963-10-10T04:05:53Z", "ms": -196545246817.42654 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:06 on Wed 9 Oct to 02:57 on Thu 10 Oct.", "fact": "1963-10-09T08:06:03Z → 1963-10-10T06:57:00Z" }, { "step": "kaala", "text": "Moonrise is at 23:07 on the 8th and 00:06 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10267 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Toronto, 1963: Wednesday 9 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-09", "confidence": "determinate" } ], "quote": "In Toronto, Ahoyī Aṣṭamī 1963 falls on Wednesday 9 October. Aṣṭamī runs from 04:06 on Wed 9 Oct to 02:57 on Thu 10 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-10-12", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16597, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-10-12T02:22:56-04:00", "utc": "1963-10-12T06:22:56Z", "ms": -196364223505.00745 }, "end": { "local": "1963-10-13T02:52:11-04:00", "utc": "1963-10-13T06:52:11Z", "ms": -196276069196.14905 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-12T02:22:56-04:00", "utc": "1963-10-12T06:22:56Z", "ms": -196364223505.00745 }, "end": { "local": "1963-10-13T02:52:11-04:00", "utc": "1963-10-13T06:52:11Z", "ms": -196276069196.14905 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-10-12", "window": { "start": { "local": "1963-10-12T07:27:35-04:00", "utc": "1963-10-12T11:27:35Z", "ms": -196345945187.67017 }, "end": { "local": "1963-10-12T07:27:35-04:00", "utc": "1963-10-12T11:27:35Z", "ms": -196345945187.67017 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-10-13", "window": { "start": { "local": "1963-10-13T07:28:48-04:00", "utc": "1963-10-13T11:28:48Z", "ms": -196259472247.76984 }, "end": { "local": "1963-10-13T07:28:48-04:00", "utc": "1963-10-13T11:28:48Z", "ms": -196259472247.76984 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-10-13", "start": { "local": "1963-10-13T09:06:01-04:00", "utc": "1963-10-13T13:06:01Z", "ms": -196253638708.05304 }, "end": { "local": "1963-10-13T09:42:42-04:00", "utc": "1963-10-13T13:42:42Z", "ms": -196251438126.16922 }, "basis": "hari-vasara", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-10-14T03:47:33-04:00", "utc": "1963-10-14T07:47:33Z", "ms": -196186347243.76498 }, "hari_vasara_end": { "local": "1963-10-13T09:06:01-04:00", "utc": "1963-10-13T13:06:01Z", "ms": -196253638708.05304 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:23 on Sat 12 Oct to 02:52 on Sun 13 Oct.", "fact": "1963-10-12T06:22:56Z → 1963-10-13T06:52:11Z" }, { "step": "kaala", "text": "Sunrise is at 07:28 on the 12th and 07:29 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 16597 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Toronto, 1963: Saturday 12 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": "1963-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-12", "confidence": "determinate" } ], "quote": "In Toronto, Ramā Ekādaśī 1963 falls on Saturday 12 October. Ekādaśī runs from 02:23 on Sat 12 Oct to 02:52 on Sun 13 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-10-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23380, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1963-10-13T02:52:11-04:00", "utc": "1963-10-13T06:52:11Z", "ms": -196276069196.14905 }, "end": { "local": "1963-10-14T03:47:33-04:00", "utc": "1963-10-14T07:47:33Z", "ms": -196186347243.76498 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-13T02:52:11-04:00", "utc": "1963-10-13T06:52:11Z", "ms": -196276069196.14905 }, "end": { "local": "1963-10-14T03:47:33-04:00", "utc": "1963-10-14T07:47:33Z", "ms": -196186347243.76498 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-10-12", "window": { "start": { "local": "1963-10-12T18:40:01-04:00", "utc": "1963-10-12T22:40:01Z", "ms": -196305599473.2521 }, "end": { "local": "1963-10-12T20:22:31-04:00", "utc": "1963-10-13T00:22:31Z", "ms": -196299449176.52115 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1963-10-13", "window": { "start": { "local": "1963-10-13T18:38:18-04:00", "utc": "1963-10-13T22:38:18Z", "ms": -196219301639.76675 }, "end": { "local": "1963-10-13T20:21:12-04:00", "utc": "1963-10-14T00:21:12Z", "ms": -196213127951.82907 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 02:52 on Sun 13 Oct to 03:48 on Mon 14 Oct.", "fact": "1963-10-13T06:52:11Z → 1963-10-14T07:47:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:40–20:23 on the 12th, 18:38–20:21 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 12th and 103 of 103 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23380 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Toronto, 1963: Sunday 13 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-13", "confidence": "determinate" } ], "quote": "In Toronto, Govatsa Dvādaśī (Vasu Baras) 1963 falls on Sunday 13 October. Dvādaśī runs from 02:52 on Sun 13 Oct to 03:48 on Mon 14 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26781, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-10-14T03:47:33-04:00", "utc": "1963-10-14T07:47:33Z", "ms": -196186347243.76498 }, "end": { "local": "1963-10-15T05:05:55-04:00", "utc": "1963-10-15T09:05:55Z", "ms": -196095244928.5702 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-14T03:47:33-04:00", "utc": "1963-10-14T07:47:33Z", "ms": -196186347243.76498 }, "end": { "local": "1963-10-15T05:05:55-04:00", "utc": "1963-10-15T09:05:55Z", "ms": -196095244928.5702 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-10-13", "window": { "start": { "local": "1963-10-13T18:38:18-04:00", "utc": "1963-10-13T22:38:18Z", "ms": -196219301639.76675 }, "end": { "local": "1963-10-13T20:21:12-04:00", "utc": "1963-10-14T00:21:12Z", "ms": -196213127951.82907 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1963-10-14", "window": { "start": { "local": "1963-10-14T18:36:37-04:00", "utc": "1963-10-14T22:36:37Z", "ms": -196133003068.38565 }, "end": { "local": "1963-10-14T20:19:54-04:00", "utc": "1963-10-15T00:19:54Z", "ms": -196126806044.06903 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:48 on Mon 14 Oct to 05:06 on Tue 15 Oct.", "fact": "1963-10-14T07:47:33Z → 1963-10-15T09:05:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:38–20:21 on the 13th, 18:37–20:20 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 13th and 103 of 103 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26781 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Toronto, 1963: Monday 14 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-14", "confidence": "determinate" } ], "quote": "In Toronto, Yama Dīpadāna 1963 falls on Monday 14 October. Trayodaśī runs from 03:48 on Mon 14 Oct to 05:06 on Tue 15 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/pradosha-vrata?on=1963-10-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26781, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-10-14T03:47:33-04:00", "utc": "1963-10-14T07:47:33Z", "ms": -196186347243.76498 }, "end": { "local": "1963-10-15T05:05:55-04:00", "utc": "1963-10-15T09:05:55Z", "ms": -196095244928.5702 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-14T03:47:33-04:00", "utc": "1963-10-14T07:47:33Z", "ms": -196186347243.76498 }, "end": { "local": "1963-10-15T05:05:55-04:00", "utc": "1963-10-15T09:05:55Z", "ms": -196095244928.5702 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-10-13", "window": { "start": { "local": "1963-10-13T18:38:18-04:00", "utc": "1963-10-13T22:38:18Z", "ms": -196219301639.76675 }, "end": { "local": "1963-10-13T20:21:12-04:00", "utc": "1963-10-14T00:21:12Z", "ms": -196213127951.82907 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1963-10-14", "window": { "start": { "local": "1963-10-14T18:36:37-04:00", "utc": "1963-10-14T22:36:37Z", "ms": -196133003068.38565 }, "end": { "local": "1963-10-14T20:19:54-04:00", "utc": "1963-10-15T00:19:54Z", "ms": -196126806044.06903 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:48 on Mon 14 Oct to 05:06 on Tue 15 Oct.", "fact": "1963-10-14T07:47:33Z → 1963-10-15T09:05:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:38–20:21 on the 13th, 18:37–20:20 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 13th and 103 of 103 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26781 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Monday 14 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-14", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Monday 14 October. Trayodaśī runs from 03:48 on Mon 14 Oct to 05:06 on Tue 15 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-10-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2523, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-10-15T05:05:55-04:00", "utc": "1963-10-15T09:05:55Z", "ms": -196095244928.5702 }, "end": { "local": "1963-10-16T06:44:55-04:00", "utc": "1963-10-16T10:44:55Z", "ms": -196002905403.9881 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-15T05:05:55-04:00", "utc": "1963-10-15T09:05:55Z", "ms": -196095244928.5702 }, "end": { "local": "1963-10-16T06:44:55-04:00", "utc": "1963-10-16T10:44:55Z", "ms": -196002905403.9881 } }, "kaala": "arunodaya", "days": [ { "local_date": "1963-10-15", "window": { "start": { "local": "1963-10-15T05:47:58-04:00", "utc": "1963-10-15T09:47:58Z", "ms": -196092722410.3275 }, "end": { "local": "1963-10-15T07:31:15-04:00", "utc": "1963-10-15T11:31:15Z", "ms": -196086525386.0109 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "1963-10-16", "window": { "start": { "local": "1963-10-16T05:48:48-04:00", "utc": "1963-10-16T09:48:48Z", "ms": -196006271768.47583 }, "end": { "local": "1963-10-16T07:32:29-04:00", "utc": "1963-10-16T11:32:29Z", "ms": -196000051467.13715 } }, "covered_min": 56, "window_min": 104, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:06 on Tue 15 Oct to 06:45 on Wed 16 Oct.", "fact": "1963-10-15T09:05:55Z → 1963-10-16T10:44:55Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:48–07:31 on the 15th, 05:49–07:32 on the 16th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 103 of 103 minutes on the 15th and 56 of 104 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both dawns qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 2523 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Toronto, 1963: Tuesday 15 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-15", "confidence": "determinate" } ], "quote": "In Toronto, Naraka Caturdaśī (Choti Diwali) 1963 falls on Tuesday 15 October. Caturdaśī runs from 05:06 on Tue 15 Oct to 06:45 on Wed 16 Oct and covers all of aruṇodaya that dawn. It also reaches the next dawn for 56 minutes; by the rule the first dawn is taken.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/shivaratri?on=1963-10-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13079, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-10-15T05:05:55-04:00", "utc": "1963-10-15T09:05:55Z", "ms": -196095244928.5702 }, "end": { "local": "1963-10-16T06:44:55-04:00", "utc": "1963-10-16T10:44:55Z", "ms": -196002905403.9881 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-15T05:05:55-04:00", "utc": "1963-10-15T09:05:55Z", "ms": -196095244928.5702 }, "end": { "local": "1963-10-16T06:44:55-04:00", "utc": "1963-10-16T10:44:55Z", "ms": -196002905403.9881 } }, "kaala": "nishita", "days": [ { "local_date": "1963-10-14", "window": { "start": { "local": "1963-10-15T00:39:56-04:00", "utc": "1963-10-15T04:39:56Z", "ms": -196111204227.19827 }, "end": { "local": "1963-10-15T01:27:56-04:00", "utc": "1963-10-15T05:27:56Z", "ms": -196108324227.19827 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-10-15", "window": { "start": { "local": "1963-10-16T00:39:42-04:00", "utc": "1963-10-16T04:39:42Z", "ms": -196024817597.15717 }, "end": { "local": "1963-10-16T01:27:42-04:00", "utc": "1963-10-16T05:27:42Z", "ms": -196021937597.15717 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:06 on Tue 15 Oct to 06:45 on Wed 16 Oct.", "fact": "1963-10-15T09:05:55Z → 1963-10-16T10:44:55Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:40–01:28 on the 14th, 00:40–01:28 on the 15th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13079 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Tuesday 15 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-15", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Tuesday 15 October. Caturdaśī runs from 05:06 on Tue 15 Oct to 06:45 on Wed 16 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-10-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35338, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1963-10-16T06:44:55-04:00", "utc": "1963-10-16T10:44:55Z", "ms": -196002905403.9881 }, "end": { "local": "1963-10-17T08:42:40-04:00", "utc": "1963-10-17T12:42:40Z", "ms": -195909440439.2278 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-16T06:44:55-04:00", "utc": "1963-10-16T10:44:55Z", "ms": -196002905403.9881 }, "end": { "local": "1963-10-17T08:42:40-04:00", "utc": "1963-10-17T12:42:40Z", "ms": -195909440439.2278 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-10-16", "window": { "start": { "local": "1963-10-16T18:33:16-04:00", "utc": "1963-10-16T22:33:16Z", "ms": -195960403584.02896 }, "end": { "local": "1963-10-16T20:17:20-04:00", "utc": "1963-10-17T00:17:20Z", "ms": -195954160069.71866 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "1963-10-17", "window": { "start": { "local": "1963-10-17T18:31:37-04:00", "utc": "1963-10-17T22:31:37Z", "ms": -195874102606.535 }, "end": { "local": "1963-10-17T20:16:04-04:00", "utc": "1963-10-18T00:16:04Z", "ms": -195867835948.17316 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 06:45 on Wed 16 Oct to 08:43 on Thu 17 Oct.", "fact": "1963-10-16T10:44:55Z → 1963-10-17T12:42:40Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:33–20:17 on the 16th, 18:32–20:16 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 104 of 104 minutes on the 16th and 0 of 104 on the 17th.", "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 35338 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Toronto, 1963: Wednesday 16 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-16", "confidence": "determinate" } ], "quote": "In Toronto, Lakṣmī Pūjā (Diwali) 1963 falls on Wednesday 16 October. Amāvasyā runs from 06:45 on Wed 16 Oct to 08:43 on Thu 17 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19032, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1963-10-16T06:44:55-04:00", "utc": "1963-10-16T10:44:55Z", "ms": -196002905403.9881 }, "end": { "local": "1963-10-17T08:42:40-04:00", "utc": "1963-10-17T12:42:40Z", "ms": -195909440439.2278 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-16T06:44:55-04:00", "utc": "1963-10-16T10:44:55Z", "ms": -196002905403.9881 }, "end": { "local": "1963-10-17T08:42:40-04:00", "utc": "1963-10-17T12:42:40Z", "ms": -195909440439.2278 } }, "kaala": "nishita", "days": [ { "local_date": "1963-10-15", "window": { "start": { "local": "1963-10-16T00:39:42-04:00", "utc": "1963-10-16T04:39:42Z", "ms": -196024817597.15717 }, "end": { "local": "1963-10-16T01:27:42-04:00", "utc": "1963-10-16T05:27:42Z", "ms": -196021937597.15717 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-10-16", "window": { "start": { "local": "1963-10-17T00:39:30-04:00", "utc": "1963-10-17T04:39:30Z", "ms": -195938430405.36536 }, "end": { "local": "1963-10-17T01:27:30-04:00", "utc": "1963-10-17T05:27:30Z", "ms": -195935550405.36536 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 06:45 on Wed 16 Oct to 08:43 on Thu 17 Oct.", "fact": "1963-10-16T10:44:55Z → 1963-10-17T12:42:40Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:40–01:28 on the 15th, 00:39–01:27 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "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 19032 s" }, { "step": "ruling", "text": "Kālī Pūjā, Toronto, 1963: Wednesday 16 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-16", "confidence": "determinate" } ], "quote": "In Toronto, Kālī Pūjā 1963 falls on Wednesday 16 October. Amāvasyā runs from 06:45 on Wed 16 Oct to 08:43 on Thu 17 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-10-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9375, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-10-20T16:02:21-04:00", "utc": "1963-10-20T20:02:21Z", "ms": -195623858500.35846 }, "end": { "local": "1963-10-21T18:40:17-04:00", "utc": "1963-10-21T22:40:17Z", "ms": -195527983196.38443 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": true, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-20T16:02:21-04:00", "utc": "1963-10-20T20:02:21Z", "ms": -195623858500.35846 }, "end": { "local": "1963-10-21T18:40:17-04:00", "utc": "1963-10-21T22:40:17Z", "ms": -195527983196.38443 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-10-20", "window": { "start": { "local": "1963-10-20T12:38:07-04:00", "utc": "1963-10-20T16:38:07Z", "ms": -195636113479.85736 }, "end": { "local": "1963-10-20T13:26:07-04:00", "utc": "1963-10-20T17:26:07Z", "ms": -195633233479.85736 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-10-21", "window": { "start": { "local": "1963-10-21T12:37:57-04:00", "utc": "1963-10-21T16:37:57Z", "ms": -195549723418.08865 }, "end": { "local": "1963-10-21T13:25:57-04:00", "utc": "1963-10-21T17:25:57Z", "ms": -195546843418.08865 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:02 on Sun 20 Oct to 18:40 on Mon 21 Oct.", "fact": "1963-10-20T20:02:21Z → 1963-10-21T22:40:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 20th, 12:38–13:26 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9375 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Monday 21 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": "1963-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-21", "confidence": "determinate" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Monday 21 October. Caturthī runs from 16:02 on Sun 20 Oct to 18:40 on Mon 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-10-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-10-28", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25502, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-10-27T23:42:37-05:00", "utc": "1963-10-28T04:42:37Z", "ms": -194987842929.64743 }, "end": { "local": "1963-10-28T21:56:56-05:00", "utc": "1963-10-29T02:56:56Z", "ms": -194907783854.7249 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": true, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-27T23:42:37-05:00", "utc": "1963-10-28T04:42:37Z", "ms": -194987842929.64743 }, "end": { "local": "1963-10-28T21:56:56-05:00", "utc": "1963-10-29T02:56:56Z", "ms": -194907783854.7249 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-10-28", "window": { "start": { "local": "1963-10-28T06:47:39-05:00", "utc": "1963-10-28T11:47:39Z", "ms": -194962341210.60693 }, "end": { "local": "1963-10-28T06:47:39-05:00", "utc": "1963-10-28T11:47:39Z", "ms": -194962341210.60693 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-10-29", "window": { "start": { "local": "1963-10-29T06:48:56-05:00", "utc": "1963-10-29T11:48:56Z", "ms": -194875863693.6827 }, "end": { "local": "1963-10-29T06:48:56-05:00", "utc": "1963-10-29T11:48:56Z", "ms": -194875863693.6827 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-10-29", "start": { "local": "1963-10-29T06:48:56-05:00", "utc": "1963-10-29T11:48:56Z", "ms": -194875863693.6827 }, "end": { "local": "1963-10-29T08:53:46-05:00", "utc": "1963-10-29T13:53:46Z", "ms": -194868373616.9148 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-10-29T19:26:00-05:00", "utc": "1963-10-30T00:26:00Z", "ms": -194830440251.80466 }, "hari_vasara_end": { "local": "1963-10-29T03:19:12-05:00", "utc": "1963-10-29T08:19:12Z", "ms": -194888447953.99484 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:43 on Sun 27 Oct to 21:57 on Mon 28 Oct.", "fact": "1963-10-28T04:42:37Z → 1963-10-29T02:56:56Z" }, { "step": "kaala", "text": "Sunrise is at 06:48 on the 28th and 06:49 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 28th and is not on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25502 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Toronto, 1963: Monday 28 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": "1963-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-28", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Ekādaśī 1963 falls on Monday 28 October. Ekādaśī runs from 23:43 on Sun 27 Oct to 21:57 on Mon 28 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-10-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-10-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-10-29", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1436, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-10-29T19:26:00-05:00", "utc": "1963-10-30T00:26:00Z", "ms": -194830440251.80466 }, "end": { "local": "1963-10-30T16:18:21-05:00", "utc": "1963-10-30T21:18:21Z", "ms": -194755298878.36487 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": true, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-10-29T19:26:00-05:00", "utc": "1963-10-30T00:26:00Z", "ms": -194830440251.80466 }, "end": { "local": "1963-10-30T16:18:21-05:00", "utc": "1963-10-30T21:18:21Z", "ms": -194755298878.36487 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-10-29", "window": { "start": { "local": "1963-10-29T17:13:07-05:00", "utc": "1963-10-29T22:13:07Z", "ms": -194838413309.84308 }, "end": { "local": "1963-10-29T19:02:04-05:00", "utc": "1963-10-30T00:02:04Z", "ms": -194831876331.5563 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "1963-10-30", "window": { "start": { "local": "1963-10-30T17:11:42-05:00", "utc": "1963-10-30T22:11:42Z", "ms": -194752098292.7287 }, "end": { "local": "1963-10-30T19:01:00-05:00", "utc": "1963-10-31T00:01:00Z", "ms": -194745539594.97958 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:26 on Tue 29 Oct to 16:18 on Wed 30 Oct.", "fact": "1963-10-30T00:26:00Z → 1963-10-30T21:18:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:13–19:02 on the 29th, 17:12–19:01 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 0 of 109 minutes on the 29th and 0 of 109 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 1436 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Tuesday 29 October.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-10-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-10-29", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Tuesday 29 October. Trayodaśī runs from 19:26 on Tue 29 Oct to 16:18 on Wed 30 Oct, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-10-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-11-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-03", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3856, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-11-03T21:50:49-05:00", "utc": "1963-11-04T02:50:49Z", "ms": -194389751140.67477 }, "end": { "local": "1963-11-04T18:52:03-05:00", "utc": "1963-11-04T23:52:03Z", "ms": -194314077188.70822 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": true, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-03T21:50:49-05:00", "utc": "1963-11-04T02:50:49Z", "ms": -194389751140.67477 }, "end": { "local": "1963-11-04T18:52:03-05:00", "utc": "1963-11-04T23:52:03Z", "ms": -194314077188.70822 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-11-03", "window": { "start": { "local": "1963-11-03T19:05:08-05:00", "utc": "1963-11-04T00:05:08Z", "ms": -194399692335.6387 }, "end": { "local": "1963-11-03T19:05:08-05:00", "utc": "1963-11-04T00:05:08Z", "ms": -194399692335.6387 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-11-04", "window": { "start": { "local": "1963-11-04T19:56:19-05:00", "utc": "1963-11-05T00:56:19Z", "ms": -194310221275.53073 }, "end": { "local": "1963-11-04T19:56:19-05:00", "utc": "1963-11-05T00:56:19Z", "ms": -194310221275.53073 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:51 on Sun 3 Nov to 18:52 on Mon 4 Nov.", "fact": "1963-11-04T02:50:49Z → 1963-11-04T23:52:03Z" }, { "step": "kaala", "text": "Moonrise is at 19:05 on the 3rd and 19:56 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 3856 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Sunday 3 November.", "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": "1963-11-03", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-03", "confidence": "boundary" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Sunday 3 November. Caturthī runs from 21:51 on Sun 3 Nov to 18:52 on Mon 4 Nov, and is current at moonrise on neither day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-11-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-11-11", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28852, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-11-10T15:05:30-05:00", "utc": "1963-11-10T20:05:30Z", "ms": -193809270005.39117 }, "end": { "local": "1963-11-11T16:38:48-05:00", "utc": "1963-11-11T21:38:48Z", "ms": -193717272090.21857 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": true, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-10T15:05:30-05:00", "utc": "1963-11-10T20:05:30Z", "ms": -193809270005.39117 }, "end": { "local": "1963-11-11T16:38:48-05:00", "utc": "1963-11-11T21:38:48Z", "ms": -193717272090.21857 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-11-10", "window": { "start": { "local": "1963-11-10T07:04:38-05:00", "utc": "1963-11-10T12:04:38Z", "ms": -193838121614.0432 }, "end": { "local": "1963-11-10T07:04:38-05:00", "utc": "1963-11-10T12:04:38Z", "ms": -193838121614.0432 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-11-11", "window": { "start": { "local": "1963-11-11T07:05:57-05:00", "utc": "1963-11-11T12:05:57Z", "ms": -193751642762.58542 }, "end": { "local": "1963-11-11T07:05:57-05:00", "utc": "1963-11-11T12:05:57Z", "ms": -193751642762.58542 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-11-12", "start": { "local": "1963-11-12T07:07:16-05:00", "utc": "1963-11-12T12:07:16Z", "ms": -193665164006.394 }, "end": { "local": "1963-11-12T09:04:56-05:00", "utc": "1963-11-12T14:04:56Z", "ms": -193658104265.3895 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-11-12T18:35:33-05:00", "utc": "1963-11-12T23:35:33Z", "ms": -193623866714.41037 }, "hari_vasara_end": { "local": "1963-11-11T23:07:59-05:00", "utc": "1963-11-12T04:07:59Z", "ms": -193693920746.2665 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:05 on Sun 10 Nov to 16:39 on Mon 11 Nov.", "fact": "1963-11-10T20:05:30Z → 1963-11-11T21:38:48Z" }, { "step": "kaala", "text": "Sunrise is at 07:05 on the 10th and 07:06 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28852 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Toronto, 1963: Monday 11 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-11", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Ekādaśī 1963 falls on Monday 11 November. Ekādaśī runs from 15:05 on Sun 10 Nov to 16:39 on Mon 11 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-11-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-11-13", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-13", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 825, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-11-12T18:35:33-05:00", "utc": "1963-11-12T23:35:33Z", "ms": -193623866714.41037 }, "end": { "local": "1963-11-13T20:49:46-05:00", "utc": "1963-11-14T01:49:46Z", "ms": -193529414129.91748 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": true, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-12T18:35:33-05:00", "utc": "1963-11-12T23:35:33Z", "ms": -193623866714.41037 }, "end": { "local": "1963-11-13T20:49:46-05:00", "utc": "1963-11-14T01:49:46Z", "ms": -193529414129.91748 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-11-12", "window": { "start": { "local": "1963-11-12T16:55:35-05:00", "utc": "1963-11-12T21:55:35Z", "ms": -193629865301.37137 }, "end": { "local": "1963-11-12T18:49:19-05:00", "utc": "1963-11-12T23:49:19Z", "ms": -193623041312.73206 } }, "covered_min": 14, "window_min": 114, "qualifies": true }, { "local_date": "1963-11-13", "window": { "start": { "local": "1963-11-13T16:54:32-05:00", "utc": "1963-11-13T21:54:32Z", "ms": -193543527679.07507 }, "end": { "local": "1963-11-13T18:48:35-05:00", "utc": "1963-11-13T23:48:35Z", "ms": -193536684914.70905 } }, "covered_min": 114, "window_min": 114, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:36 on Tue 12 Nov to 20:50 on Wed 13 Nov.", "fact": "1963-11-12T23:35:33Z → 1963-11-14T01:49:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:56–18:49 on the 12th, 16:55–18:49 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 14 of 114 minutes on the 12th and 114 of 114 on the 13th.", "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 825 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Wednesday 13 November.", "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": "1963-11-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-13", "confidence": "boundary" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Wednesday 13 November. Trayodaśī runs from 18:36 on Tue 12 Nov to 20:50 on Wed 13 Nov and covers all of pradoṣa that evening. It also reaches the previous evening for 14 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/toronto/festivals/1963/pradosha-vrata?on=1963-11-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-11-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1329, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-11-13T20:49:46-05:00", "utc": "1963-11-14T01:49:46Z", "ms": -193529414129.91748 }, "end": { "local": "1963-11-14T23:16:13-05:00", "utc": "1963-11-15T04:16:13Z", "ms": -193434227300.47568 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": true, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-13T20:49:46-05:00", "utc": "1963-11-14T01:49:46Z", "ms": -193529414129.91748 }, "end": { "local": "1963-11-14T23:16:13-05:00", "utc": "1963-11-15T04:16:13Z", "ms": -193434227300.47568 } }, "kaala": "nishita", "days": [ { "local_date": "1963-11-13", "window": { "start": { "local": "1963-11-13T23:38:13-05:00", "utc": "1963-11-14T04:38:13Z", "ms": -193519307312.70245 }, "end": { "local": "1963-11-14T00:26:13-05:00", "utc": "1963-11-14T05:26:13Z", "ms": -193516427312.70245 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-11-14", "window": { "start": { "local": "1963-11-14T23:38:22-05:00", "utc": "1963-11-15T04:38:22Z", "ms": -193432898440.56616 }, "end": { "local": "1963-11-15T00:26:22-05:00", "utc": "1963-11-15T05:26:22Z", "ms": -193430018440.56616 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:50 on Wed 13 Nov to 23:16 on Thu 14 Nov.", "fact": "1963-11-14T01:49:46Z → 1963-11-15T04:16:13Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:38–00:26 on the 13th, 23:38–00:26 on the 14th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1329 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Wednesday 13 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-13", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Wednesday 13 November. Caturdaśī runs from 20:50 on Wed 13 Nov to 23:16 on Thu 14 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-11-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25853, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1963-11-16T01:50:16-05:00", "utc": "1963-11-16T06:50:16Z", "ms": -193338583501.42178 }, "end": { "local": "1963-11-17T04:27:22-05:00", "utc": "1963-11-17T09:27:22Z", "ms": -193242758314.67792 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-16T01:50:16-05:00", "utc": "1963-11-16T06:50:16Z", "ms": -193338583501.42178 }, "end": { "local": "1963-11-17T04:27:22-05:00", "utc": "1963-11-17T09:27:22Z", "ms": -193242758314.67792 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-11-16", "window": { "start": { "local": "1963-11-16T11:38:03-05:00", "utc": "1963-11-16T16:38:03Z", "ms": -193303317008.43542 }, "end": { "local": "1963-11-16T12:26:03-05:00", "utc": "1963-11-16T17:26:03Z", "ms": -193300437008.43542 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-11-17", "window": { "start": { "local": "1963-11-17T11:38:15-05:00", "utc": "1963-11-17T16:38:15Z", "ms": -193216905465.96082 }, "end": { "local": "1963-11-17T12:26:15-05:00", "utc": "1963-11-17T17:26:15Z", "ms": -193214025465.96082 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 01:50 on Sat 16 Nov to 04:27 on Sun 17 Nov.", "fact": "1963-11-16T06:50:16Z → 1963-11-17T09:27:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 16th, 11:38–12:26 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 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 25853 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Toronto, 1963: Saturday 16 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": "1963-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-16", "confidence": "determinate" } ], "quote": "In Toronto, Govardhana Pūjā 1963 falls on Saturday 16 November. Pratipadā runs from 01:50 on Sat 16 Nov to 04:27 on Sun 17 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25384, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1963-11-16T01:50:16-05:00", "utc": "1963-11-16T06:50:16Z", "ms": -193338583501.42178 }, "end": { "local": "1963-11-17T04:27:22-05:00", "utc": "1963-11-17T09:27:22Z", "ms": -193242758314.67792 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-16T01:50:16-05:00", "utc": "1963-11-16T06:50:16Z", "ms": -193338583501.42178 }, "end": { "local": "1963-11-17T04:27:22-05:00", "utc": "1963-11-17T09:27:22Z", "ms": -193242758314.67792 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-11-15", "window": { "start": { "local": "1963-11-15T16:52:33-05:00", "utc": "1963-11-15T21:52:33Z", "ms": -193370846678.8824 }, "end": { "local": "1963-11-15T18:47:13-05:00", "utc": "1963-11-15T23:47:13Z", "ms": -193363967226.68674 } }, "covered_min": 0, "window_min": 115, "qualifies": false }, { "local_date": "1963-11-16", "window": { "start": { "local": "1963-11-16T16:51:37-05:00", "utc": "1963-11-16T21:51:37Z", "ms": -193284503229.4559 }, "end": { "local": "1963-11-16T18:46:34-05:00", "utc": "1963-11-16T23:46:34Z", "ms": -193277605887.52383 } }, "covered_min": 115, "window_min": 115, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 01:50 on Sat 16 Nov to 04:27 on Sun 17 Nov.", "fact": "1963-11-16T06:50:16Z → 1963-11-17T09:27:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:53–18:47 on the 15th, 16:52–18:47 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 0 of 115 minutes on the 15th and 115 of 115 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25384 s" }, { "step": "ruling", "text": "Bali Pūjā, Toronto, 1963: Saturday 16 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-16", "confidence": "determinate" } ], "quote": "In Toronto, Bali Pūjā 1963 falls on Saturday 16 November. Pratipadā runs from 01:50 on Sat 16 Nov to 04:27 on Sun 17 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9985, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1963-11-16T01:50:16-05:00", "utc": "1963-11-16T06:50:16Z", "ms": -193338583501.42178 }, "end": { "local": "1963-11-17T04:27:22-05:00", "utc": "1963-11-17T09:27:22Z", "ms": -193242758314.67792 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-16T01:50:16-05:00", "utc": "1963-11-16T06:50:16Z", "ms": -193338583501.42178 }, "end": { "local": "1963-11-17T04:27:22-05:00", "utc": "1963-11-17T09:27:22Z", "ms": -193242758314.67792 } }, "kaala": "purvahna", "days": [ { "local_date": "1963-11-16", "window": { "start": { "local": "1963-11-16T07:12:29-05:00", "utc": "1963-11-16T12:12:29Z", "ms": -193319250787.41495 }, "end": { "local": "1963-11-16T10:25:32-05:00", "utc": "1963-11-16T15:25:32Z", "ms": -193307668268.09528 } }, "covered_min": 193, "window_min": 193, "qualifies": true }, { "local_date": "1963-11-17", "window": { "start": { "local": "1963-11-17T07:13:47-05:00", "utc": "1963-11-17T12:13:47Z", "ms": -193232773164.96533 }, "end": { "local": "1963-11-17T10:26:05-05:00", "utc": "1963-11-17T15:26:05Z", "ms": -193221234698.96234 } }, "covered_min": 0, "window_min": 192, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 01:50 on Sat 16 Nov to 04:27 on Sun 17 Nov.", "fact": "1963-11-16T06:50:16Z → 1963-11-17T09:27:22Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:12–10:26 on the 16th, 07:14–10:26 on the 17th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 193 of 193 minutes on the 16th and 0 of 192 on the 17th.", "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 9985 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Toronto, 1963: Saturday 16 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": "1963-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-16", "confidence": "determinate" } ], "quote": "In Toronto, Dyūta Pratipad 1963 falls on Saturday 16 November. Pratipadā runs from 01:50 on Sat 16 Nov to 04:27 on Sun 17 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16575, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1963-11-17T04:27:22-05:00", "utc": "1963-11-17T09:27:22Z", "ms": -193242758314.67792 }, "end": { "local": "1963-11-18T07:02:12-05:00", "utc": "1963-11-18T12:02:12Z", "ms": -193147068039.98953 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-17T04:27:22-05:00", "utc": "1963-11-17T09:27:22Z", "ms": -193242758314.67792 }, "end": { "local": "1963-11-18T07:02:12-05:00", "utc": "1963-11-18T12:02:12Z", "ms": -193147068039.98953 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-11-17", "window": { "start": { "local": "1963-11-17T11:38:15-05:00", "utc": "1963-11-17T16:38:15Z", "ms": -193216905465.96082 }, "end": { "local": "1963-11-17T12:26:15-05:00", "utc": "1963-11-17T17:26:15Z", "ms": -193214025465.96082 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-11-18", "window": { "start": { "local": "1963-11-18T11:38:27-05:00", "utc": "1963-11-18T16:38:27Z", "ms": -193130493085.58408 }, "end": { "local": "1963-11-18T12:26:27-05:00", "utc": "1963-11-18T17:26:27Z", "ms": -193127613085.58408 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 04:27 on Sun 17 Nov to 07:02 on Mon 18 Nov.", "fact": "1963-11-17T09:27:22Z → 1963-11-18T12:02:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 17th, 11:38–12:26 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16575 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Toronto, 1963: Sunday 17 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": "1963-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-17", "confidence": "determinate" } ], "quote": "In Toronto, Yama Dvitīyā (Bhai Dooj) 1963 falls on Sunday 17 November. Dvitīyā runs from 04:27 on Sun 17 Nov to 07:02 on Mon 18 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-19", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 73, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-11-19T09:28:17-05:00", "utc": "1963-11-19T14:28:17Z", "ms": -193051903452.85626 }, "end": { "local": "1963-11-20T11:37:41-05:00", "utc": "1963-11-20T16:37:41Z", "ms": -192957738628.44748 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-19T09:28:17-05:00", "utc": "1963-11-19T14:28:17Z", "ms": -193051903452.85626 }, "end": { "local": "1963-11-20T11:37:41-05:00", "utc": "1963-11-20T16:37:41Z", "ms": -192957738628.44748 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-11-19", "window": { "start": { "local": "1963-11-19T11:38:40-05:00", "utc": "1963-11-19T16:38:40Z", "ms": -193044079876.48453 }, "end": { "local": "1963-11-19T12:26:40-05:00", "utc": "1963-11-19T17:26:40Z", "ms": -193041199876.48453 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-11-20", "window": { "start": { "local": "1963-11-20T11:38:54-05:00", "utc": "1963-11-20T16:38:54Z", "ms": -192957665848.82507 }, "end": { "local": "1963-11-20T12:26:54-05:00", "utc": "1963-11-20T17:26:54Z", "ms": -192954785848.82507 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:28 on Tue 19 Nov to 11:38 on Wed 20 Nov.", "fact": "1963-11-19T14:28:17Z → 1963-11-20T16:37:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 19th, 11:39–12:27 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 73 s < 300 s" }, { "step": "ruling", "text": "Nāga Caturthī, Toronto, 1963: Tuesday 19 November.", "fact": "confidence: boundary (margin)" } ], "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": "1963-11-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-20", "confidence": "determinate" } ], "quote": "In Toronto, Nāga Caturthī 1963 falls on Tuesday 19 November. Caturthī runs from 09:28 on Tue 19 Nov to 11:38 on Wed 20 Nov and covers all of madhyāhna that midday. It is 1 min 13 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-11-19", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-19", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 73, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-11-19T09:28:17-05:00", "utc": "1963-11-19T14:28:17Z", "ms": -193051903452.85626 }, "end": { "local": "1963-11-20T11:37:41-05:00", "utc": "1963-11-20T16:37:41Z", "ms": -192957738628.44748 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-19T09:28:17-05:00", "utc": "1963-11-19T14:28:17Z", "ms": -193051903452.85626 }, "end": { "local": "1963-11-20T11:37:41-05:00", "utc": "1963-11-20T16:37:41Z", "ms": -192957738628.44748 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-11-19", "window": { "start": { "local": "1963-11-19T11:38:40-05:00", "utc": "1963-11-19T16:38:40Z", "ms": -193044079876.48453 }, "end": { "local": "1963-11-19T12:26:40-05:00", "utc": "1963-11-19T17:26:40Z", "ms": -193041199876.48453 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-11-20", "window": { "start": { "local": "1963-11-20T11:38:54-05:00", "utc": "1963-11-20T16:38:54Z", "ms": -192957665848.82507 }, "end": { "local": "1963-11-20T12:26:54-05:00", "utc": "1963-11-20T17:26:54Z", "ms": -192954785848.82507 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:28 on Tue 19 Nov to 11:38 on Wed 20 Nov.", "fact": "1963-11-19T14:28:17Z → 1963-11-20T16:37:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 19th, 11:39–12:27 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 73 s < 300 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Tuesday 19 November.", "fact": "confidence: boundary (margin)" } ], "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": "1963-11-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-19", "confidence": "boundary" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Tuesday 19 November. Caturthī runs from 09:28 on Tue 19 Nov to 11:38 on Wed 20 Nov and covers all of madhyāhna that midday. It is 1 min 13 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-11-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3267, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1963-11-21T13:21:35-05:00", "utc": "1963-11-21T18:21:35Z", "ms": -192865104505.36682 }, "end": { "local": "1963-11-22T14:31:11-05:00", "utc": "1963-11-22T19:31:11Z", "ms": -192774528578.8453 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-21T13:21:35-05:00", "utc": "1963-11-21T18:21:35Z", "ms": -192865104505.36682 }, "end": { "local": "1963-11-22T14:31:11-05:00", "utc": "1963-11-22T19:31:11Z", "ms": -192774528578.8453 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-11-21", "window": { "start": { "local": "1963-11-21T11:39:09-05:00", "utc": "1963-11-21T16:39:09Z", "ms": -192871251013.6751 }, "end": { "local": "1963-11-21T12:27:09-05:00", "utc": "1963-11-21T17:27:09Z", "ms": -192868371013.6751 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-11-22", "window": { "start": { "local": "1963-11-22T11:39:25-05:00", "utc": "1963-11-22T16:39:25Z", "ms": -192784835382.92413 }, "end": { "local": "1963-11-22T12:27:25-05:00", "utc": "1963-11-22T17:27:25Z", "ms": -192781955382.92413 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 13:22 on Thu 21 Nov to 14:31 on Fri 22 Nov.", "fact": "1963-11-21T18:21:35Z → 1963-11-22T19:31:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 21st, 11:39–12:27 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī 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: unstated → only-day · margin 3267 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Toronto, 1963: Friday 22 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": "1963-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-22", "confidence": "determinate" } ], "quote": "In Toronto, Sūrya Ṣaṣṭhī (Chhath) 1963 falls on Friday 22 November. Ṣaṣṭhī runs from 13:22 on Thu 21 Nov to 14:31 on Fri 22 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7944, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1963-11-23T14:59:04-05:00", "utc": "1963-11-23T19:59:04Z", "ms": -192686456199.7132 }, "end": { "local": "1963-11-24T14:40:22-05:00", "utc": "1963-11-24T19:40:22Z", "ms": -192601177793.2899 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-23T14:59:04-05:00", "utc": "1963-11-23T19:59:04Z", "ms": -192686456199.7132 }, "end": { "local": "1963-11-24T14:40:22-05:00", "utc": "1963-11-24T19:40:22Z", "ms": -192601177793.2899 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-11-23", "window": { "start": { "local": "1963-11-23T11:39:41-05:00", "utc": "1963-11-23T16:39:41Z", "ms": -192698418969.17416 }, "end": { "local": "1963-11-23T12:27:41-05:00", "utc": "1963-11-23T17:27:41Z", "ms": -192695538969.17416 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-11-24", "window": { "start": { "local": "1963-11-24T11:39:58-05:00", "utc": "1963-11-24T16:39:58Z", "ms": -192612001785.6007 }, "end": { "local": "1963-11-24T12:27:58-05:00", "utc": "1963-11-24T17:27:58Z", "ms": -192609121785.6007 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 14:59 on Sat 23 Nov to 14:40 on Sun 24 Nov.", "fact": "1963-11-23T19:59:04Z → 1963-11-24T19:40:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 23rd, 11:40–12:28 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7944 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Toronto, 1963: Sunday 24 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": "1963-11-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-24", "confidence": "determinate" } ], "quote": "In Toronto, Gopāṣṭamī 1963 falls on Sunday 24 November. Aṣṭamī runs from 14:59 on Sat 23 Nov to 14:40 on Sun 24 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10969, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1963-11-24T14:40:22-05:00", "utc": "1963-11-24T19:40:22Z", "ms": -192601177793.2899 }, "end": { "local": "1963-11-25T13:33:36-05:00", "utc": "1963-11-25T18:33:36Z", "ms": -192518783622.74323 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-24T14:40:22-05:00", "utc": "1963-11-24T19:40:22Z", "ms": -192601177793.2899 }, "end": { "local": "1963-11-25T13:33:36-05:00", "utc": "1963-11-25T18:33:36Z", "ms": -192518783622.74323 } }, "kaala": "purvahna", "days": [ { "local_date": "1963-11-24", "window": { "start": { "local": "1963-11-24T07:22:37-05:00", "utc": "1963-11-24T12:22:37Z", "ms": -192627443244.21658 }, "end": { "local": "1963-11-24T10:30:11-05:00", "utc": "1963-11-24T15:30:11Z", "ms": -192616188938.4727 } }, "covered_min": 0, "window_min": 188, "qualifies": false }, { "local_date": "1963-11-25", "window": { "start": { "local": "1963-11-25T07:23:50-05:00", "utc": "1963-11-25T12:23:50Z", "ms": -192540970131.58313 }, "end": { "local": "1963-11-25T10:30:47-05:00", "utc": "1963-11-25T15:30:47Z", "ms": -192529752607.71118 } }, "covered_min": 187, "window_min": 187, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 14:40 on Sun 24 Nov to 13:34 on Mon 25 Nov.", "fact": "1963-11-24T19:40:22Z → 1963-11-25T18:33:36Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:23–10:30 on the 24th, 07:24–10:31 on the 25th.", "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 188 minutes on the 24th and 187 of 187 on the 25th.", "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 10969 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Toronto, 1963: Monday 25 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": "1963-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-25", "confidence": "determinate" } ], "quote": "In Toronto, Akṣaya Navamī (Amla Navami) 1963 falls on Monday 25 November. Navamī runs from 14:40 on Sun 24 Nov to 13:34 on Mon 25 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3920, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1963-11-24T14:40:22-05:00", "utc": "1963-11-24T19:40:22Z", "ms": -192601177793.2899 }, "end": { "local": "1963-11-25T13:33:36-05:00", "utc": "1963-11-25T18:33:36Z", "ms": -192518783622.74323 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-24T14:40:22-05:00", "utc": "1963-11-24T19:40:22Z", "ms": -192601177793.2899 }, "end": { "local": "1963-11-25T13:33:36-05:00", "utc": "1963-11-25T18:33:36Z", "ms": -192518783622.74323 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-11-24", "window": { "start": { "local": "1963-11-24T11:39:58-05:00", "utc": "1963-11-24T16:39:58Z", "ms": -192612001785.6007 }, "end": { "local": "1963-11-24T12:27:58-05:00", "utc": "1963-11-24T17:27:58Z", "ms": -192609121785.6007 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-11-25", "window": { "start": { "local": "1963-11-25T11:40:16-05:00", "utc": "1963-11-25T16:40:16Z", "ms": -192525583845.7752 }, "end": { "local": "1963-11-25T12:28:16-05:00", "utc": "1963-11-25T17:28:16Z", "ms": -192522703845.7752 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 14:40 on Sun 24 Nov to 13:34 on Mon 25 Nov.", "fact": "1963-11-24T19:40:22Z → 1963-11-25T18:33:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 24th, 11:40–12:28 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3920 s" }, { "step": "ruling", "text": "Durgā Navamī, Toronto, 1963: Monday 25 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": "1963-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-25", "confidence": "determinate" } ], "quote": "In Toronto, Durgā Navamī 1963 falls on Monday 25 November. Navamī runs from 14:40 on Sun 24 Nov to 13:34 on Mon 25 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/ekadashi?on=1963-11-27", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6040, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-11-26T11:40:45-05:00", "utc": "1963-11-26T16:40:45Z", "ms": -192439154992.66742 }, "end": { "local": "1963-11-27T09:06:54-05:00", "utc": "1963-11-27T14:06:54Z", "ms": -192361986484.3214 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-26T11:40:45-05:00", "utc": "1963-11-26T16:40:45Z", "ms": -192439154992.66742 }, "end": { "local": "1963-11-27T09:06:54-05:00", "utc": "1963-11-27T14:06:54Z", "ms": -192361986484.3214 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-11-26", "window": { "start": { "local": "1963-11-26T07:25:02-05:00", "utc": "1963-11-26T12:25:02Z", "ms": -192454497838.80692 }, "end": { "local": "1963-11-26T07:25:02-05:00", "utc": "1963-11-26T12:25:02Z", "ms": -192454497838.80692 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-11-27", "window": { "start": { "local": "1963-11-27T07:26:14-05:00", "utc": "1963-11-27T12:26:14Z", "ms": -192368026422.70947 }, "end": { "local": "1963-11-27T07:26:14-05:00", "utc": "1963-11-27T12:26:14Z", "ms": -192368026422.70947 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-11-28", "start": { "local": "1963-11-28T07:27:24-05:00", "utc": "1963-11-28T12:27:24Z", "ms": -192281555938.83435 }, "end": { "local": "1963-11-28T09:18:32-05:00", "utc": "1963-11-28T14:18:32Z", "ms": -192274887813.76212 }, "basis": "dvadashi-over", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-11-28T05:59:34-05:00", "utc": "1963-11-28T10:59:34Z", "ms": -192286825815.94632 }, "hari_vasara_end": { "local": "1963-11-27T14:20:04-05:00", "utc": "1963-11-27T19:20:04Z", "ms": -192343196317.22763 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:41 on Tue 26 Nov to 09:07 on Wed 27 Nov.", "fact": "1963-11-26T16:40:45Z → 1963-11-27T14:06:54Z" }, { "step": "kaala", "text": "Sunrise is at 07:25 on the 26th and 07:26 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 26th and is on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6040 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Toronto, 1963: Wednesday 27 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": "1963-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-27", "confidence": "determinate" } ], "quote": "In Toronto, Prabodhinī Ekādaśī 1963 falls on Wednesday 27 November. Ekādaśī runs from 11:41 on Tue 26 Nov to 09:07 on Wed 27 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-11-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-11-28", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28013, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-11-28T05:59:34-05:00", "utc": "1963-11-28T10:59:34Z", "ms": -192286825815.94632 }, "end": { "local": "1963-11-29T02:28:02-05:00", "utc": "1963-11-29T07:28:02Z", "ms": -192213117970.1446 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-28T05:59:34-05:00", "utc": "1963-11-28T10:59:34Z", "ms": -192286825815.94632 }, "end": { "local": "1963-11-29T02:28:02-05:00", "utc": "1963-11-29T07:28:02Z", "ms": -192213117970.1446 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-11-27", "window": { "start": { "local": "1963-11-27T16:43:35-05:00", "utc": "1963-11-27T21:43:35Z", "ms": -192334585082.06323 }, "end": { "local": "1963-11-27T18:41:25-05:00", "utc": "1963-11-27T23:41:25Z", "ms": -192327514529.63272 } }, "covered_min": 0, "window_min": 118, "qualifies": false }, { "local_date": "1963-11-28", "window": { "start": { "local": "1963-11-28T16:43:05-05:00", "utc": "1963-11-28T21:43:05Z", "ms": -192248215313.4731 }, "end": { "local": "1963-11-28T18:41:09-05:00", "utc": "1963-11-28T23:41:09Z", "ms": -192241131463.84967 } }, "covered_min": 118, "window_min": 118, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:00 on Thu 28 Nov to 02:28 on Fri 29 Nov.", "fact": "1963-11-28T10:59:34Z → 1963-11-29T07:28:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:44–18:41 on the 27th, 16:43–18:41 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 118 minutes on the 27th and 118 of 118 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28013 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Thursday 28 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-28", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Thursday 28 November. Trayodaśī runs from 06:00 on Thu 28 Nov to 02:28 on Fri 29 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-11-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3574, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-11-29T22:42:35-05:00", "utc": "1963-11-30T03:42:35Z", "ms": -192140245065.6169 }, "end": { "local": "1963-11-30T18:54:01-05:00", "utc": "1963-11-30T23:54:01Z", "ms": -192067559045.40952 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-29T22:42:35-05:00", "utc": "1963-11-30T03:42:35Z", "ms": -192140245065.6169 }, "end": { "local": "1963-11-30T18:54:01-05:00", "utc": "1963-11-30T23:54:01Z", "ms": -192067559045.40952 } }, "kaala": "nishita", "days": [ { "local_date": "1963-11-29", "window": { "start": { "local": "1963-11-29T23:42:09-05:00", "utc": "1963-11-30T04:42:09Z", "ms": -192136670569.09424 }, "end": { "local": "1963-11-30T00:30:09-05:00", "utc": "1963-11-30T05:30:09Z", "ms": -192133790569.09424 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-11-30", "window": { "start": { "local": "1963-11-30T23:42:30-05:00", "utc": "1963-12-01T04:42:30Z", "ms": -192050249598.88376 }, "end": { "local": "1963-12-01T00:30:30-05:00", "utc": "1963-12-01T05:30:30Z", "ms": -192047369598.88376 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:43 on Fri 29 Nov to 18:54 on Sat 30 Nov.", "fact": "1963-11-30T03:42:35Z → 1963-11-30T23:54:01Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:42–00:30 on the 29th, 23:43–00:31 on the 30th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 48 of 48 minutes on the 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3574 s" }, { "step": "ruling", "text": "Rāsayātrā, Toronto, 1963: Friday 29 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": "1963-11-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-29", "confidence": "determinate" } ], "quote": "In Toronto, Rāsayātrā 1963 falls on Friday 29 November. Pūrṇimā runs from 22:43 on Fri 29 Nov to 18:54 on Sat 30 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23044, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1963-11-29T22:42:35-05:00", "utc": "1963-11-30T03:42:35Z", "ms": -192140245065.6169 }, "end": { "local": "1963-11-30T18:54:01-05:00", "utc": "1963-11-30T23:54:01Z", "ms": -192067559045.40952 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1963-11-29T22:42:35-05:00", "utc": "1963-11-30T03:42:35Z", "ms": -192140245065.6169 }, "end": { "local": "1963-11-30T18:54:01-05:00", "utc": "1963-11-30T23:54:01Z", "ms": -192067559045.40952 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-11-29", "window": { "start": { "local": "1963-11-29T11:41:35-05:00", "utc": "1963-11-29T16:41:35Z", "ms": -192179904798.18686 }, "end": { "local": "1963-11-29T12:29:35-05:00", "utc": "1963-11-29T17:29:35Z", "ms": -192177024798.18686 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1963-11-30", "window": { "start": { "local": "1963-11-30T11:41:57-05:00", "utc": "1963-11-30T16:41:57Z", "ms": -192093483281.9563 }, "end": { "local": "1963-11-30T12:29:57-05:00", "utc": "1963-11-30T17:29:57Z", "ms": -192090603281.9563 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:43 on Fri 29 Nov to 18:54 on Sat 30 Nov.", "fact": "1963-11-30T03:42:35Z → 1963-11-30T23:54:01Z" }, { "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": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23044 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Toronto, 1963: Saturday 30 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kartiki-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-11-30", "confidence": "determinate" } ], "quote": "In Toronto, Kārtikī Pūrṇimā 1963 falls on Saturday 30 November. Pūrṇimā runs from 22:43 on Fri 29 Nov to 18:54 on Sat 30 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/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": "/toronto/festivals/1963/sankashta-chaturthi?on=1963-12-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-12-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38608, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-12-03T08:56:05-05:00", "utc": "1963-12-03T13:56:05Z", "ms": -191844235061.8873 }, "end": { "local": "1963-12-04T06:38:02-05:00", "utc": "1963-12-04T11:38:02Z", "ms": -191766118239.66568 }, "month": { "amanta": 7, "purnimanta": 9, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-12-03T08:56:05-05:00", "utc": "1963-12-03T13:56:05Z", "ms": -191844235061.8873 }, "end": { "local": "1963-12-04T06:38:02-05:00", "utc": "1963-12-04T11:38:02Z", "ms": -191766118239.66568 } }, "kaala": "moonrise", "days": [ { "local_date": "1963-12-03", "window": { "start": { "local": "1963-12-03T19:39:33-05:00", "utc": "1963-12-04T00:39:33Z", "ms": -191805627331.33154 }, "end": { "local": "1963-12-03T19:39:33-05:00", "utc": "1963-12-04T00:39:33Z", "ms": -191805627331.33154 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-12-04", "window": { "start": { "local": "1963-12-04T20:47:25-05:00", "utc": "1963-12-05T01:47:25Z", "ms": -191715155180.98264 }, "end": { "local": "1963-12-04T20:47:25-05:00", "utc": "1963-12-05T01:47:25Z", "ms": -191715155180.98264 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:56 on Tue 3 Dec to 06:38 on Wed 4 Dec.", "fact": "1963-12-03T13:56:05Z → 1963-12-04T11:38:02Z" }, { "step": "kaala", "text": "Moonrise is at 19:40 on the 3rd and 20:47 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38608 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Toronto, 1963: Tuesday 3 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": "1963-12-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-12-03", "confidence": "determinate" } ], "quote": "In Toronto, Saṅkaṣṭa Caturthī 1963 falls on Tuesday 3 December. Caturthī runs from 08:56 on Tue 3 Dec to 06:38 on Wed 4 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/sankashta-chaturthi?on=1963-12-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-12-11", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-12-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2933, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-12-10T08:28:50-05:00", "utc": "1963-12-10T13:28:50Z", "ms": -191241070214.50616 }, "end": { "local": "1963-12-11T10:50:45-05:00", "utc": "1963-12-11T15:50:45Z", "ms": -191146155006.8897 }, "month": { "amanta": 7, "purnimanta": 9, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-12-10T08:28:50-05:00", "utc": "1963-12-10T13:28:50Z", "ms": -191241070214.50616 }, "end": { "local": "1963-12-11T10:50:45-05:00", "utc": "1963-12-11T15:50:45Z", "ms": -191146155006.8897 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-12-10", "window": { "start": { "local": "1963-12-10T07:39:57-05:00", "utc": "1963-12-10T12:39:57Z", "ms": -191244002738.8047 }, "end": { "local": "1963-12-10T07:39:57-05:00", "utc": "1963-12-10T12:39:57Z", "ms": -191244002738.8047 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1963-12-11", "window": { "start": { "local": "1963-12-11T07:40:51-05:00", "utc": "1963-12-11T12:40:51Z", "ms": -191157549443.18134 }, "end": { "local": "1963-12-11T07:40:51-05:00", "utc": "1963-12-11T12:40:51Z", "ms": -191157549443.18134 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "parana": { "local_date": "1963-12-12", "start": { "local": "1963-12-12T07:41:42-05:00", "utc": "1963-12-12T12:41:42Z", "ms": -191071097884.25278 }, "end": { "local": "1963-12-12T09:29:26-05:00", "utc": "1963-12-12T14:29:26Z", "ms": -191064633965.62396 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-12-12T13:25:39-05:00", "utc": "1963-12-12T18:25:39Z", "ms": -191050461257.7708 }, "hari_vasara_end": { "local": "1963-12-11T17:29:28-05:00", "utc": "1963-12-11T22:29:28Z", "ms": -191122231569.61 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:29 on Tue 10 Dec to 10:51 on Wed 11 Dec.", "fact": "1963-12-10T13:28:50Z → 1963-12-11T15:50:45Z" }, { "step": "kaala", "text": "Sunrise is at 07:40 on the 10th and 07:41 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2933 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Toronto, 1963: Wednesday 11 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": "1963-12-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-12-11", "confidence": "determinate" } ], "quote": "In Toronto, Utpannā Ekādaśī 1963 falls on Wednesday 11 December. Ekādaśī runs from 08:29 on Tue 10 Dec to 10:51 on Wed 11 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-12-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-12-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-12-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2151, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-12-12T13:25:39-05:00", "utc": "1963-12-12T18:25:39Z", "ms": -191050461257.7708 }, "end": { "local": "1963-12-13T16:04:38-05:00", "utc": "1963-12-13T21:04:38Z", "ms": -190954522015.69492 }, "month": { "amanta": 7, "purnimanta": 9, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-12-12T13:25:39-05:00", "utc": "1963-12-12T18:25:39Z", "ms": -191050461257.7708 }, "end": { "local": "1963-12-13T16:04:38-05:00", "utc": "1963-12-13T21:04:38Z", "ms": -190954522015.69492 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-12-12", "window": { "start": { "local": "1963-12-12T16:40:22-05:00", "utc": "1963-12-12T21:40:22Z", "ms": -191038778291.10867 }, "end": { "local": "1963-12-12T18:40:39-05:00", "utc": "1963-12-12T23:40:39Z", "ms": -191031560935.07483 } }, "covered_min": 120, "window_min": 120, "qualifies": true }, { "local_date": "1963-12-13", "window": { "start": { "local": "1963-12-13T16:40:29-05:00", "utc": "1963-12-13T21:40:29Z", "ms": -190952370878.38605 }, "end": { "local": "1963-12-13T18:40:52-05:00", "utc": "1963-12-13T23:40:52Z", "ms": -190945148122.71417 } }, "covered_min": 0, "window_min": 120, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:26 on Thu 12 Dec to 16:05 on Fri 13 Dec.", "fact": "1963-12-12T18:25:39Z → 1963-12-13T21:04:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:40–18:41 on the 12th, 16:40–18:41 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 120 of 120 minutes on the 12th and 0 of 120 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 2151 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Toronto, 1963: Thursday 12 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-12-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-12-12", "confidence": "determinate" } ], "quote": "In Toronto, Kṛṣṇa Pradoṣa Vrata 1963 falls on Thursday 12 December. Trayodaśī runs from 13:26 on Thu 12 Dec to 16:05 on Fri 13 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-12-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/shivaratri?on=1963-12-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-12-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18490, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1963-12-13T16:04:38-05:00", "utc": "1963-12-13T21:04:38Z", "ms": -190954522015.69492 }, "end": { "local": "1963-12-14T18:40:12-05:00", "utc": "1963-12-14T23:40:12Z", "ms": -190858787784.27866 }, "month": { "amanta": 7, "purnimanta": 9, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-12-13T16:04:38-05:00", "utc": "1963-12-13T21:04:38Z", "ms": -190954522015.69492 }, "end": { "local": "1963-12-14T18:40:12-05:00", "utc": "1963-12-14T23:40:12Z", "ms": -190858787784.27866 } }, "kaala": "nishita", "days": [ { "local_date": "1963-12-13", "window": { "start": { "local": "1963-12-13T23:47:54-05:00", "utc": "1963-12-14T04:47:54Z", "ms": -190926725544.61652 }, "end": { "local": "1963-12-14T00:35:54-05:00", "utc": "1963-12-14T05:35:54Z", "ms": -190923845544.61652 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-12-14", "window": { "start": { "local": "1963-12-14T23:48:22-05:00", "utc": "1963-12-15T04:48:22Z", "ms": -190840297570.7441 }, "end": { "local": "1963-12-15T00:36:22-05:00", "utc": "1963-12-15T05:36:22Z", "ms": -190837417570.7441 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:05 on Fri 13 Dec to 18:40 on Sat 14 Dec.", "fact": "1963-12-13T21:04:38Z → 1963-12-14T23:40:12Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:48–00:36 on the 13th, 23:48–00:36 on the 14th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18490 s" }, { "step": "ruling", "text": "Śivarātri, Toronto, 1963: Friday 13 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-12-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-12-13", "confidence": "determinate" } ], "quote": "In Toronto, Śivarātri 1963 falls on Friday 13 December. Caturdaśī runs from 16:05 on Fri 13 Dec to 18:40 on Sat 14 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/toronto/festivals/1963/shivaratri?on=1963-12-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/vinayaka-chaturthi?on=1963-12-19", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-12-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29377, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1963-12-19T02:39:27-05:00", "utc": "1963-12-19T07:39:27Z", "ms": -190484432739.67252 }, "end": { "local": "1963-12-20T03:41:21-05:00", "utc": "1963-12-20T08:41:21Z", "ms": -190394319236.78577 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-12-19T02:39:27-05:00", "utc": "1963-12-19T07:39:27Z", "ms": -190484432739.67252 }, "end": { "local": "1963-12-20T03:41:21-05:00", "utc": "1963-12-20T08:41:21Z", "ms": -190394319236.78577 } }, "kaala": "madhyahna", "days": [ { "local_date": "1963-12-19", "window": { "start": { "local": "1963-12-19T11:50:28-05:00", "utc": "1963-12-19T16:50:28Z", "ms": -190451372077.77374 }, "end": { "local": "1963-12-19T12:38:28-05:00", "utc": "1963-12-19T17:38:28Z", "ms": -190448492077.77374 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1963-12-20", "window": { "start": { "local": "1963-12-20T11:50:58-05:00", "utc": "1963-12-20T16:50:58Z", "ms": -190364941870.33234 }, "end": { "local": "1963-12-20T12:38:58-05:00", "utc": "1963-12-20T17:38:58Z", "ms": -190362061870.33234 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:39 on Thu 19 Dec to 03:41 on Fri 20 Dec.", "fact": "1963-12-19T07:39:27Z → 1963-12-20T08:41:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 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 29377 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Toronto, 1963: Thursday 19 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": "1963-12-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-12-19", "confidence": "determinate" } ], "quote": "In Toronto, Vināyaka Caturthī 1963 falls on Thursday 19 December. Caturthī runs from 02:39 on Thu 19 Dec to 03:41 on Fri 20 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/toronto/festivals/1963/vinayaka-chaturthi?on=1963-12-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/ekadashi?on=1963-12-26", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-12-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35622, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1963-12-25T21:56:29-05:00", "utc": "1963-12-26T02:56:29Z", "ms": -189896610599.22772 }, "end": { "local": "1963-12-26T19:07:19-05:00", "utc": "1963-12-27T00:07:19Z", "ms": -189820360596.0721 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-12-25T21:56:29-05:00", "utc": "1963-12-26T02:56:29Z", "ms": -189896610599.22772 }, "end": { "local": "1963-12-26T19:07:19-05:00", "utc": "1963-12-27T00:07:19Z", "ms": -189820360596.0721 } }, "kaala": "sunrise", "days": [ { "local_date": "1963-12-26", "window": { "start": { "local": "1963-12-26T07:50:11-05:00", "utc": "1963-12-26T12:50:11Z", "ms": -189860988703.5239 }, "end": { "local": "1963-12-26T07:50:11-05:00", "utc": "1963-12-26T12:50:11Z", "ms": -189860988703.5239 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1963-12-27", "window": { "start": { "local": "1963-12-27T07:50:31-05:00", "utc": "1963-12-27T12:50:31Z", "ms": -189774569317.84998 }, "end": { "local": "1963-12-27T07:50:31-05:00", "utc": "1963-12-27T12:50:31Z", "ms": -189774569317.84998 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "parana": { "local_date": "1963-12-27", "start": { "local": "1963-12-27T07:50:31-05:00", "utc": "1963-12-27T12:50:31Z", "ms": -189774569317.84998 }, "end": { "local": "1963-12-27T09:37:42-05:00", "utc": "1963-12-27T14:37:42Z", "ms": -189768137656.91873 }, "basis": "pratah", "ends_with_dvadashi": false, "dvadashi_end": { "local": "1963-12-27T15:59:04-05:00", "utc": "1963-12-27T20:59:04Z", "ms": -189745255611.90488 }, "hari_vasara_end": { "local": "1963-12-27T00:20:16-05:00", "utc": "1963-12-27T05:20:16Z", "ms": -189801584350.0303 } }, "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:56 on Wed 25 Dec to 19:07 on Thu 26 Dec.", "fact": "1963-12-26T02:56:29Z → 1963-12-27T00:07:19Z" }, { "step": "kaala", "text": "Sunrise is at 07:50 on the 26th and 07:51 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35622 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Toronto, 1963: Thursday 26 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-12-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-12-26", "confidence": "determinate" } ], "quote": "In Toronto, Putradā Ekādaśī 1963 falls on Thursday 26 December. Ekādaśī runs from 21:56 on Wed 25 Dec to 19:07 on Thu 26 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/toronto/festivals/1963/ekadashi?on=1963-12-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/toronto/festivals/1963/pradosha-vrata?on=1963-12-27", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "6167865", "year": 1963, "local_date": "1963-12-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2845, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1963-12-27T15:59:04-05:00", "utc": "1963-12-27T20:59:04Z", "ms": -189745255611.90488 }, "end": { "local": "1963-12-28T12:39:47-05:00", "utc": "1963-12-28T17:39:47Z", "ms": -189670813302.20764 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1963-12-27T15:59:04-05:00", "utc": "1963-12-27T20:59:04Z", "ms": -189745255611.90488 }, "end": { "local": "1963-12-28T12:39:47-05:00", "utc": "1963-12-28T17:39:47Z", "ms": -189670813302.20764 } }, "kaala": "pradosha", "days": [ { "local_date": "1963-12-27", "window": { "start": { "local": "1963-12-27T16:46:29-05:00", "utc": "1963-12-27T21:46:29Z", "ms": -189742411013.19373 }, "end": { "local": "1963-12-27T18:47:03-05:00", "utc": "1963-12-27T23:47:03Z", "ms": -189735176526.47662 } }, "covered_min": 121, "window_min": 121, "qualifies": true }, { "local_date": "1963-12-28", "window": { "start": { "local": "1963-12-28T16:47:12-05:00", "utc": "1963-12-28T21:47:12Z", "ms": -189655968234.37027 }, "end": { "local": "1963-12-28T18:47:42-05:00", "utc": "1963-12-28T23:47:42Z", "ms": -189648737516.7949 } }, "covered_min": 0, "window_min": 121, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:59 on Fri 27 Dec to 12:40 on Sat 28 Dec.", "fact": "1963-12-27T20:59:04Z → 1963-12-28T17:39:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:46–18:47 on the 27th, 16:47–18:48 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 121 of 121 minutes on the 27th and 0 of 121 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2845 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Toronto, 1963: Friday 27 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1963-12-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1963-12-27", "confidence": "determinate" } ], "quote": "In Toronto, Śukla Pradoṣa Vrata 1963 falls on Friday 27 December. Trayodaśī runs from 15:59 on Fri 27 Dec to 12:40 on Sat 28 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/toronto/festivals/1963/pradosha-vrata?on=1963-12-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }