{ "id": "/mashhad/festivals/1937", "place": { "id": "124665", "slug": "mashhad", "name": "Mashhad", "region": "Razavi Khorasan, Iran", "country": "IR", "lat": 36.29807, "lon": 59.60567, "elevation_m": 980, "tz": "Asia/Tehran" }, "year": 1937, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/mashhad/festivals/1937/ekadashi?on=1937-01-08", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19951, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-01-07T12:16:29+03:30", "utc": "1937-01-07T08:46:29Z", "ms": -1040829211106.9761 }, "end": { "local": "1937-01-08T14:46:51+03:30", "utc": "1937-01-08T11:16:51Z", "ms": -1040733789258.2914 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-07T12:16:29+03:30", "utc": "1937-01-07T08:46:29Z", "ms": -1040829211106.9761 }, "end": { "local": "1937-01-08T14:46:51+03:30", "utc": "1937-01-08T11:16:51Z", "ms": -1040733789258.2914 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-01-07", "window": { "start": { "local": "1937-01-07T06:43:58+03:30", "utc": "1937-01-07T03:13:58Z", "ms": -1040849161919.5844 }, "end": { "local": "1937-01-07T06:43:58+03:30", "utc": "1937-01-07T03:13:58Z", "ms": -1040849161919.5844 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-01-08", "window": { "start": { "local": "1937-01-08T06:43:57+03:30", "utc": "1937-01-08T03:13:57Z", "ms": -1040762763203.4166 }, "end": { "local": "1937-01-08T06:43:57+03:30", "utc": "1937-01-08T03:13:57Z", "ms": -1040762763203.4166 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:16 on Thu 7 Jan to 14:47 on Fri 8 Jan.", "fact": "1937-01-07T08:46:29Z → 1937-01-08T11:16:51Z" }, { "step": "kaala", "text": "Sunrise is at 06:44 on the 7th and 06:44 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 7th and is on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19951 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Mashhad, 1937: Friday 8 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": "1937-01-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-08", "confidence": "determinate" } ], "quote": "In Mashhad, Saphalā Ekādaśī 1937 falls on Friday 8 January. Ekādaśī runs from 12:16 on Thu 7 Jan to 14:47 on Fri 8 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-01-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-01-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-10", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 549, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-01-09T16:56:25+03:30", "utc": "1937-01-09T13:26:25Z", "ms": -1040639615395.2928 }, "end": { "local": "1937-01-10T18:36:57+03:30", "utc": "1937-01-10T15:06:57Z", "ms": -1040547183032.918 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-09T16:56:25+03:30", "utc": "1937-01-09T13:26:25Z", "ms": -1040639615395.2928 }, "end": { "local": "1937-01-10T18:36:57+03:30", "utc": "1937-01-10T15:06:57Z", "ms": -1040547183032.918 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-01-09", "window": { "start": { "local": "1937-01-09T16:33:39+03:30", "utc": "1937-01-09T13:03:39Z", "ms": -1040640980621.769 }, "end": { "local": "1937-01-09T18:27:01+03:30", "utc": "1937-01-09T14:57:01Z", "ms": -1040634179435.5807 } }, "covered_min": 91, "window_min": 113, "qualifies": true }, { "local_date": "1937-01-10", "window": { "start": { "local": "1937-01-10T16:34:35+03:30", "utc": "1937-01-10T13:04:35Z", "ms": -1040554525081.0746 }, "end": { "local": "1937-01-10T18:27:48+03:30", "utc": "1937-01-10T14:57:48Z", "ms": -1040547732265.8176 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:56 on Sat 9 Jan to 18:37 on Sun 10 Jan.", "fact": "1937-01-09T13:26:25Z → 1937-01-10T15:06:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:34–18:27 on the 9th, 16:35–18:28 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 91 of 113 minutes on the 9th and 113 of 113 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 549 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Sunday 10 January.", "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": "1937-01-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-09", "confidence": "boundary" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Sunday 10 January. Trayodaśī runs from 16:56 on Sat 9 Jan to 18:37 on Sun 10 Jan and covers all of pradoṣa that evening. It also reaches the previous evening for 91 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/mashhad/festivals/1937/pradosha-vrata?on=1937-01-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-01-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12686, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-01-10T18:36:57+03:30", "utc": "1937-01-10T15:06:57Z", "ms": -1040547183032.918 }, "end": { "local": "1937-01-11T19:44:06+03:30", "utc": "1937-01-11T16:14:06Z", "ms": -1040456754138.9697 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-10T18:36:57+03:30", "utc": "1937-01-10T15:06:57Z", "ms": -1040547183032.918 }, "end": { "local": "1937-01-11T19:44:06+03:30", "utc": "1937-01-11T16:14:06Z", "ms": -1040456754138.9697 } }, "kaala": "nishita", "days": [ { "local_date": "1937-01-10", "window": { "start": { "local": "1937-01-10T23:15:08+03:30", "utc": "1937-01-10T19:45:08Z", "ms": -1040530492023.861 }, "end": { "local": "1937-01-11T00:03:08+03:30", "utc": "1937-01-10T20:33:08Z", "ms": -1040527612023.861 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-01-11", "window": { "start": { "local": "1937-01-11T23:15:32+03:30", "utc": "1937-01-11T19:45:32Z", "ms": -1040444068433.0867 }, "end": { "local": "1937-01-12T00:03:32+03:30", "utc": "1937-01-11T20:33:32Z", "ms": -1040441188433.0867 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:37 on Sun 10 Jan to 19:44 on Mon 11 Jan.", "fact": "1937-01-10T15:06:57Z → 1937-01-11T16:14:06Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:15–00:03 on the 10th, 23:16–00:04 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12686 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Sunday 10 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": "1937-01-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-10", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Sunday 10 January. Caturdaśī runs from 18:37 on Sun 10 Jan to 19:44 on Mon 11 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-01-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1934, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-02-12T06:06:30+03:30", "utc": "1937-02-12T02:36:30Z", "ms": -1037741009866.7465 } }, "span": { "of": "transit", "start": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 } }, "kaala": "sunset-day", "days": [ { "local_date": "1937-01-13", "window": { "start": { "local": "1937-01-12T16:36:29+03:30", "utc": "1937-01-12T13:06:29Z", "ms": -1040381611447.8809 }, "end": { "local": "1937-01-13T16:37:27+03:30", "utc": "1937-01-13T13:07:27Z", "ms": -1040295153464.8737 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1937-01-14", "window": { "start": { "local": "1937-01-13T16:37:27+03:30", "utc": "1937-01-13T13:07:27Z", "ms": -1040295153464.8737 }, "end": { "local": "1937-01-14T16:38:25+03:30", "utc": "1937-01-14T13:08:25Z", "ms": -1040208694777.0476 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1937-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 17:10 on Wed 13 Jan.", "fact": "1937-01-13T13:39:41Z · 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 16:37, and the day of the 14th ends at 16:38.", "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 1934 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Thursday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Mashhad, 1937: Wednesday 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": "1937-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1937-01-12", "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": "1937-01-12", "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 Mashhad, Bhogi 1937 falls on Wednesday 13 January. It is kept the day before Pongal, which falls on Thursday 14 January. The Sun enters Makara at 17:10 on Wed 13 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 midnight, or counted from sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24619, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-02-12T06:06:30+03:30", "utc": "1937-02-12T02:36:30Z", "ms": -1037741009866.7465 } }, "span": { "of": "transit", "start": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 } }, "kaala": "civil-day", "days": [ { "local_date": "1937-01-13", "window": { "start": { "local": "1937-01-13T00:00:00+03:30", "utc": "1937-01-12T20:30:00Z", "ms": -1040355000000 }, "end": { "local": "1937-01-14T00:00:00+03:30", "utc": "1937-01-13T20:30:00Z", "ms": -1040268600000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "1937-01-14", "window": { "start": { "local": "1937-01-14T00:00:00+03:30", "utc": "1937-01-13T20:30:00Z", "ms": -1040268600000 }, "end": { "local": "1937-01-15T00:00:00+03:30", "utc": "1937-01-14T20:30:00Z", "ms": -1040182200000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 17:10 on Wed 13 Jan.", "fact": "1937-01-13T13:39:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Mashhad.", "fact": "civil-day: midnight-to-midnight · Asia/Tehran" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. 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 midnight → only-day · margin 24619 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Mashhad, 1937: Wednesday 13 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": "1937-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1937-01-13", "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": "1937-01-14", "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 Mashhad, Makara Saṅkrānti 1937 falls on Wednesday 13 January. The Sun enters Makara at 17:10 on Wed 13 Jan, and the rule counts the day from midnight. 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 January.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1934, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-02-12T06:06:30+03:30", "utc": "1937-02-12T02:36:30Z", "ms": -1037741009866.7465 } }, "span": { "of": "transit", "start": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 } }, "kaala": "sunset-day", "days": [ { "local_date": "1937-01-13", "window": { "start": { "local": "1937-01-12T16:36:29+03:30", "utc": "1937-01-12T13:06:29Z", "ms": -1040381611447.8809 }, "end": { "local": "1937-01-13T16:37:27+03:30", "utc": "1937-01-13T13:07:27Z", "ms": -1040295153464.8737 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1937-01-14", "window": { "start": { "local": "1937-01-13T16:37:27+03:30", "utc": "1937-01-13T13:07:27Z", "ms": -1040295153464.8737 }, "end": { "local": "1937-01-14T16:38:25+03:30", "utc": "1937-01-14T13:08:25Z", "ms": -1040208694777.0476 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 17:10 on Wed 13 Jan.", "fact": "1937-01-13T13:39:41Z · 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 16:37, and the day of the 14th ends at 16:38.", "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 1934 s" }, { "step": "ruling", "text": "Pongal, Mashhad, 1937: Thursday 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": "1937-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1937-01-13", "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": "1937-01-13", "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 Mashhad, Pongal 1937 falls on Thursday 14 January. The Sun enters Makara at 17:10 on Wed 13 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 midnight, or counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1934, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-02-12T06:06:30+03:30", "utc": "1937-02-12T02:36:30Z", "ms": -1037741009866.7465 } }, "span": { "of": "transit", "start": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-01-13T17:09:41+03:30", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 } }, "kaala": "sunset-day", "days": [ { "local_date": "1937-01-13", "window": { "start": { "local": "1937-01-12T16:36:29+03:30", "utc": "1937-01-12T13:06:29Z", "ms": -1040381611447.8809 }, "end": { "local": "1937-01-13T16:37:27+03:30", "utc": "1937-01-13T13:07:27Z", "ms": -1040295153464.8737 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1937-01-14", "window": { "start": { "local": "1937-01-13T16:37:27+03:30", "utc": "1937-01-13T13:07:27Z", "ms": -1040295153464.8737 }, "end": { "local": "1937-01-14T16:38:25+03:30", "utc": "1937-01-14T13:08:25Z", "ms": -1040208694777.0476 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1937-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 17:10 on Wed 13 Jan.", "fact": "1937-01-13T13:39:41Z · 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 16:37, and the day of the 14th ends at 16:38.", "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 1934 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Thursday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Mashhad, 1937: Friday 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": "1937-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1937-01-14", "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": "1937-01-14", "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 Mashhad, Mattu Pongal 1937 falls on Friday 15 January. It is kept the day after Pongal, which falls on Thursday 14 January. The Sun enters Makara at 17:10 on Wed 13 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 midnight, or counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-01-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20069, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-01-15T18:54:22+03:30", "utc": "1937-01-15T15:24:22Z", "ms": -1040114137577.6195 }, "end": { "local": "1937-01-16T17:39:59+03:30", "utc": "1937-01-16T14:09:59Z", "ms": -1040032200843.5133 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-15T18:54:22+03:30", "utc": "1937-01-15T15:24:22Z", "ms": -1040114137577.6195 }, "end": { "local": "1937-01-16T17:39:59+03:30", "utc": "1937-01-16T14:09:59Z", "ms": -1040032200843.5133 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-01-15", "window": { "start": { "local": "1937-01-15T11:17:08+03:30", "utc": "1937-01-15T07:47:08Z", "ms": -1040141571606.1472 }, "end": { "local": "1937-01-15T12:05:08+03:30", "utc": "1937-01-15T08:35:08Z", "ms": -1040138691606.1472 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-01-16", "window": { "start": { "local": "1937-01-16T11:17:30+03:30", "utc": "1937-01-16T07:47:30Z", "ms": -1040055150209.0249 }, "end": { "local": "1937-01-16T12:05:30+03:30", "utc": "1937-01-16T08:35:30Z", "ms": -1040052270209.0249 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:54 on Fri 15 Jan to 17:40 on Sat 16 Jan.", "fact": "1937-01-15T15:24:22Z → 1937-01-16T14:09:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:17–12:05 on the 15th, 11:17–12:05 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20069 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Saturday 16 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-16", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Saturday 16 January. Caturthī runs from 18:54 on Fri 15 Jan to 17:40 on Sat 16 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-01-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-01-22", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1563, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-01-22T06:14:09+03:30", "utc": "1937-01-22T02:44:09Z", "ms": -1039554951198.5535 }, "end": { "local": "1937-01-23T04:04:01+03:30", "utc": "1937-01-23T00:34:01Z", "ms": -1039476359134.946 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-22T06:14:09+03:30", "utc": "1937-01-22T02:44:09Z", "ms": -1039554951198.5535 }, "end": { "local": "1937-01-23T04:04:01+03:30", "utc": "1937-01-23T00:34:01Z", "ms": -1039476359134.946 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-01-22", "window": { "start": { "local": "1937-01-22T06:40:11+03:30", "utc": "1937-01-22T03:10:11Z", "ms": -1039553388534.0626 }, "end": { "local": "1937-01-22T06:40:11+03:30", "utc": "1937-01-22T03:10:11Z", "ms": -1039553388534.0626 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-01-23", "window": { "start": { "local": "1937-01-23T06:39:41+03:30", "utc": "1937-01-23T03:09:41Z", "ms": -1039467019111.2595 }, "end": { "local": "1937-01-23T06:39:41+03:30", "utc": "1937-01-23T03:09:41Z", "ms": -1039467019111.2595 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:14 on Fri 22 Jan to 04:04 on Sat 23 Jan.", "fact": "1937-01-22T02:44:09Z → 1937-01-23T00:34:01Z" }, { "step": "kaala", "text": "Sunrise is at 06:40 on the 22nd and 06:40 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1563 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Mashhad, 1937: Friday 22 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": "1937-01-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-22", "confidence": "determinate" } ], "quote": "In Mashhad, Putradā Ekādaśī 1937 falls on Friday 22 January. Ekādaśī runs from 06:14 on Fri 22 Jan to 04:04 on Sat 23 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-01-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-01-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19115, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-01-24T01:57:06+03:30", "utc": "1937-01-23T22:27:06Z", "ms": -1039397574267.2599 }, "end": { "local": "1937-01-24T23:57:54+03:30", "utc": "1937-01-24T20:27:54Z", "ms": -1039318326126.6244 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-24T01:57:06+03:30", "utc": "1937-01-23T22:27:06Z", "ms": -1039397574267.2599 }, "end": { "local": "1937-01-24T23:57:54+03:30", "utc": "1937-01-24T20:27:54Z", "ms": -1039318326126.6244 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-01-23", "window": { "start": { "local": "1937-01-23T16:47:37+03:30", "utc": "1937-01-23T13:17:37Z", "ms": -1039430543313.5242 }, "end": { "local": "1937-01-23T18:38:29+03:30", "utc": "1937-01-23T15:08:29Z", "ms": -1039423891075.6146 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "1937-01-24", "window": { "start": { "local": "1937-01-24T16:48:40+03:30", "utc": "1937-01-24T13:18:40Z", "ms": -1039344080294.61 }, "end": { "local": "1937-01-24T18:39:19+03:30", "utc": "1937-01-24T15:09:19Z", "ms": -1039337441023.7131 } }, "covered_min": 111, "window_min": 111, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:57 on Sun 24 Jan to 23:58 on Sun 24 Jan.", "fact": "1937-01-23T22:27:06Z → 1937-01-24T20:27:54Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:48–18:38 on the 23rd, 16:49–18:39 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 111 minutes on the 23rd and 111 of 111 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19115 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Sunday 24 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": "1937-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-24", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Sunday 24 January. Trayodaśī runs from 01:57 on Sun 24 Jan to 23:58 on Sun 24 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-01-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-01-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1841, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-01-29T19:25:18+03:30", "utc": "1937-01-29T15:55:18Z", "ms": -1038902681762.6796 }, "end": { "local": "1937-01-30T20:14:36+03:30", "utc": "1937-01-30T16:44:36Z", "ms": -1038813324432.5612 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-01-29T19:25:18+03:30", "utc": "1937-01-29T15:55:18Z", "ms": -1038902681762.6796 }, "end": { "local": "1937-01-30T20:14:36+03:30", "utc": "1937-01-30T16:44:36Z", "ms": -1038813324432.5612 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-01-29", "window": { "start": { "local": "1937-01-29T19:56:00+03:30", "utc": "1937-01-29T16:26:00Z", "ms": -1038900840481.5645 }, "end": { "local": "1937-01-29T19:56:00+03:30", "utc": "1937-01-29T16:26:00Z", "ms": -1038900840481.5645 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-01-30", "window": { "start": { "local": "1937-01-30T20:55:08+03:30", "utc": "1937-01-30T17:25:08Z", "ms": -1038810891896.11 }, "end": { "local": "1937-01-30T20:55:08+03:30", "utc": "1937-01-30T17:25:08Z", "ms": -1038810891896.11 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:25 on Fri 29 Jan to 20:15 on Sat 30 Jan.", "fact": "1937-01-29T15:55:18Z → 1937-01-30T16:44:36Z" }, { "step": "kaala", "text": "Moonrise is at 19:56 on the 29th and 20:55 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1841 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Friday 29 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": "1937-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-29", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Friday 29 January. Caturthī runs from 19:25 on Fri 29 Jan to 20:15 on Sat 30 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-01-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-02-07", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11453, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-02-06T09:40:25+03:30", "utc": "1937-02-06T06:10:25Z", "ms": -1038246575176.2042 }, "end": { "local": "1937-02-07T11:20:29+03:30", "utc": "1937-02-07T07:50:29Z", "ms": -1038154171055.7355 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-06T09:40:25+03:30", "utc": "1937-02-06T06:10:25Z", "ms": -1038246575176.2042 }, "end": { "local": "1937-02-07T11:20:29+03:30", "utc": "1937-02-07T07:50:29Z", "ms": -1038154171055.7355 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-02-06", "window": { "start": { "local": "1937-02-06T06:29:32+03:30", "utc": "1937-02-06T02:59:32Z", "ms": -1038258028102.67 }, "end": { "local": "1937-02-06T06:29:32+03:30", "utc": "1937-02-06T02:59:32Z", "ms": -1038258028102.67 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-02-07", "window": { "start": { "local": "1937-02-07T06:28:37+03:30", "utc": "1937-02-07T02:58:37Z", "ms": -1038171683371.4739 }, "end": { "local": "1937-02-07T06:28:37+03:30", "utc": "1937-02-07T02:58:37Z", "ms": -1038171683371.4739 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:40 on Sat 6 Feb to 11:20 on Sun 7 Feb.", "fact": "1937-02-06T06:10:25Z → 1937-02-07T07:50:29Z" }, { "step": "kaala", "text": "Sunrise is at 06:30 on the 6th and 06:29 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11453 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Mashhad, 1937: Sunday 7 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-07", "confidence": "determinate" } ], "quote": "In Mashhad, Ṣaṭtilā Ekādaśī 1937 falls on Sunday 7 February. Ekādaśī runs from 09:40 on Sat 6 Feb to 11:20 on Sun 7 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-02-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-02-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16222, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-02-08T12:19:43+03:30", "utc": "1937-02-08T08:49:43Z", "ms": -1038064216788.4823 }, "end": { "local": "1937-02-09T12:35:14+03:30", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-08T12:19:43+03:30", "utc": "1937-02-08T08:49:43Z", "ms": -1038064216788.4823 }, "end": { "local": "1937-02-09T12:35:14+03:30", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-02-08", "window": { "start": { "local": "1937-02-08T17:04:33+03:30", "utc": "1937-02-08T13:34:33Z", "ms": -1038047126823.5801 }, "end": { "local": "1937-02-08T18:51:30+03:30", "utc": "1937-02-08T15:21:30Z", "ms": -1038040709661.4896 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1937-02-09", "window": { "start": { "local": "1937-02-09T17:05:36+03:30", "utc": "1937-02-09T13:35:36Z", "ms": -1037960663927.5035 }, "end": { "local": "1937-02-09T18:52:17+03:30", "utc": "1937-02-09T15:22:17Z", "ms": -1037954263072.6095 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:20 on Mon 8 Feb to 12:35 on Tue 9 Feb.", "fact": "1937-02-08T08:49:43Z → 1937-02-09T09:05:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:05–18:52 on the 8th, 17:06–18:52 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 107 of 107 minutes on the 8th and 0 of 107 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16222 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Monday 8 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": "1937-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-08", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Monday 8 February. Trayodaśī runs from 12:20 on Mon 8 Feb to 12:35 on Tue 9 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-02-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-02-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38785, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-02-09T12:35:14+03:30", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "end": { "local": "1937-02-10T12:08:30+03:30", "utc": "1937-02-10T08:38:30Z", "ms": -1037892089963.9225 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-09T12:35:14+03:30", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "end": { "local": "1937-02-10T12:08:30+03:30", "utc": "1937-02-10T08:38:30Z", "ms": -1037892089963.9225 } }, "kaala": "nishita", "days": [ { "local_date": "1937-02-09", "window": { "start": { "local": "1937-02-09T23:21:39+03:30", "utc": "1937-02-09T19:51:39Z", "ms": -1037938100721.6511 }, "end": { "local": "1937-02-10T00:09:39+03:30", "utc": "1937-02-09T20:39:39Z", "ms": -1037935220721.6511 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-10", "window": { "start": { "local": "1937-02-10T23:21:40+03:30", "utc": "1937-02-10T19:51:40Z", "ms": -1037851699747.4133 }, "end": { "local": "1937-02-11T00:09:40+03:30", "utc": "1937-02-10T20:39:40Z", "ms": -1037848819747.4133 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:35 on Tue 9 Feb to 12:09 on Wed 10 Feb.", "fact": "1937-02-09T09:05:14Z → 1937-02-10T08:38:30Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:22–00:10 on the 9th, 23:22–00:10 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38785 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Tuesday 9 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-09", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Tuesday 9 February. Caturdaśī runs from 12:35 on Tue 9 Feb to 12:09 on Wed 10 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-02-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20568, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-02-09T12:35:14+03:30", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "end": { "local": "1937-02-10T12:08:30+03:30", "utc": "1937-02-10T08:38:30Z", "ms": -1037892089963.9225 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-09T12:35:14+03:30", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "end": { "local": "1937-02-10T12:08:30+03:30", "utc": "1937-02-10T08:38:30Z", "ms": -1037892089963.9225 } }, "kaala": "arunodaya", "days": [ { "local_date": "1937-02-09", "window": { "start": { "local": "1937-02-09T04:39:45+03:30", "utc": "1937-02-09T01:09:45Z", "ms": -1038005415269.9926 }, "end": { "local": "1937-02-09T06:26:42+03:30", "utc": "1937-02-09T02:56:42Z", "ms": -1037998998107.9021 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1937-02-10", "window": { "start": { "local": "1937-02-10T04:39:02+03:30", "utc": "1937-02-10T01:09:02Z", "ms": -1037919058370.6926 }, "end": { "local": "1937-02-10T06:25:42+03:30", "utc": "1937-02-10T02:55:42Z", "ms": -1037912657515.7986 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:35 on Tue 9 Feb to 12:09 on Wed 10 Feb.", "fact": "1937-02-09T09:05:14Z → 1937-02-10T08:38:30Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:40–06:27 on the 9th, 04:39–06:26 on the 10th.", "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 107 minutes on the 9th and 107 of 107 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20568 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Mashhad, 1937: Wednesday 10 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-10", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Tarpaṇa 1937 falls on Wednesday 10 February. Caturdaśī runs from 12:35 on Tue 9 Feb to 12:09 on Wed 10 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21717, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-02-14T05:20:13+03:30", "utc": "1937-02-14T01:50:13Z", "ms": -1037570987408.6925 }, "end": { "local": "1937-02-15T03:01:10+03:30", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-14T05:20:13+03:30", "utc": "1937-02-14T01:50:13Z", "ms": -1037570987408.6925 }, "end": { "local": "1937-02-15T03:01:10+03:30", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-14", "window": { "start": { "local": "1937-02-14T11:22:09+03:30", "utc": "1937-02-14T07:52:09Z", "ms": -1037549270599.188 }, "end": { "local": "1937-02-14T12:10:09+03:30", "utc": "1937-02-14T08:40:09Z", "ms": -1037546390599.188 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-15", "window": { "start": { "local": "1937-02-15T11:22:07+03:30", "utc": "1937-02-15T07:52:07Z", "ms": -1037462872813.5582 }, "end": { "local": "1937-02-15T12:10:07+03:30", "utc": "1937-02-15T08:40:07Z", "ms": -1037459992813.5582 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:20 on Sun 14 Feb to 03:01 on Mon 15 Feb.", "fact": "1937-02-14T01:50:13Z → 1937-02-14T23:31:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 14th, 11:22–12:10 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21717 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Mashhad, 1937: Sunday 14 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-14", "confidence": "determinate" } ], "quote": "In Mashhad, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1937 falls on Sunday 14 February. Caturthī runs from 05:20 on Sun 14 Feb to 03:01 on Mon 15 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29106, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-02-14T05:20:13+03:30", "utc": "1937-02-14T01:50:13Z", "ms": -1037570987408.6925 }, "end": { "local": "1937-02-15T03:01:10+03:30", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-14T05:20:13+03:30", "utc": "1937-02-14T01:50:13Z", "ms": -1037570987408.6925 }, "end": { "local": "1937-02-15T03:01:10+03:30", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-02-13", "window": { "start": { "local": "1937-02-13T17:09:45+03:30", "utc": "1937-02-13T13:39:45Z", "ms": -1037614814737.3317 }, "end": { "local": "1937-02-13T18:55:19+03:30", "utc": "1937-02-13T15:25:19Z", "ms": -1037608480514.335 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1937-02-14", "window": { "start": { "local": "1937-02-14T17:10:47+03:30", "utc": "1937-02-14T13:40:47Z", "ms": -1037528353133.52 }, "end": { "local": "1937-02-14T18:56:04+03:30", "utc": "1937-02-14T15:26:04Z", "ms": -1037522035887.3451 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:20 on Sun 14 Feb to 03:01 on Mon 15 Feb.", "fact": "1937-02-14T01:50:13Z → 1937-02-14T23:31:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:10–18:55 on the 13th, 17:11–18:56 on the 14th.", "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 106 minutes on the 13th and 105 of 105 on the 14th.", "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 29106 s" }, { "step": "ruling", "text": "Tila Caturthī, Mashhad, 1937: Sunday 14 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-14", "confidence": "determinate" } ], "quote": "In Mashhad, Tila Caturthī 1937 falls on Sunday 14 February. Caturthī runs from 05:20 on Sun 14 Feb to 03:01 on Mon 15 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30057, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-02-15T03:01:10+03:30", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "end": { "local": "1937-02-16T00:41:31+03:30", "utc": "1937-02-15T21:11:31Z", "ms": -1037414909164.4556 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-15T03:01:10+03:30", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "end": { "local": "1937-02-16T00:41:31+03:30", "utc": "1937-02-15T21:11:31Z", "ms": -1037414909164.4556 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-15", "window": { "start": { "local": "1937-02-15T11:22:07+03:30", "utc": "1937-02-15T07:52:07Z", "ms": -1037462872813.5582 }, "end": { "local": "1937-02-15T12:10:07+03:30", "utc": "1937-02-15T08:40:07Z", "ms": -1037459992813.5582 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-16", "window": { "start": { "local": "1937-02-16T11:22:04+03:30", "utc": "1937-02-16T07:52:04Z", "ms": -1037376475777.1104 }, "end": { "local": "1937-02-16T12:10:04+03:30", "utc": "1937-02-16T08:40:04Z", "ms": -1037373595777.1104 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:01 on Mon 15 Feb to 00:42 on Tue 16 Feb.", "fact": "1937-02-14T23:31:10Z → 1937-02-15T21:11:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 15th, 11:22–12:10 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30057 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Mashhad, 1937: Monday 15 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-15", "confidence": "determinate" } ], "quote": "In Mashhad, Śrī Pañcamī 1937 falls on Monday 15 February. Pañcamī runs from 03:01 on Mon 15 Feb to 00:42 on Tue 16 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30057, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-02-15T03:01:10+03:30", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "end": { "local": "1937-02-16T00:41:31+03:30", "utc": "1937-02-15T21:11:31Z", "ms": -1037414909164.4556 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-15T03:01:10+03:30", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "end": { "local": "1937-02-16T00:41:31+03:30", "utc": "1937-02-15T21:11:31Z", "ms": -1037414909164.4556 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-15", "window": { "start": { "local": "1937-02-15T11:22:07+03:30", "utc": "1937-02-15T07:52:07Z", "ms": -1037462872813.5582 }, "end": { "local": "1937-02-15T12:10:07+03:30", "utc": "1937-02-15T08:40:07Z", "ms": -1037459992813.5582 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-16", "window": { "start": { "local": "1937-02-16T11:22:04+03:30", "utc": "1937-02-16T07:52:04Z", "ms": -1037376475777.1104 }, "end": { "local": "1937-02-16T12:10:04+03:30", "utc": "1937-02-16T08:40:04Z", "ms": -1037373595777.1104 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:01 on Mon 15 Feb to 00:42 on Tue 16 Feb.", "fact": "1937-02-14T23:31:10Z → 1937-02-15T21:11:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 15th, 11:22–12:10 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30057 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Mashhad, 1937: Monday 15 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-15", "confidence": "determinate" } ], "quote": "In Mashhad, Vasanta Pañcamī 1937 falls on Monday 15 February. Pañcamī runs from 03:01 on Mon 15 Feb to 00:42 on Tue 16 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22027, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-02-16T22:26:21+03:30", "utc": "1937-02-16T18:56:21Z", "ms": -1037336618978.9369 }, "end": { "local": "1937-02-17T20:19:17+03:30", "utc": "1937-02-17T16:49:17Z", "ms": -1037257843404.6296 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-16T22:26:21+03:30", "utc": "1937-02-16T18:56:21Z", "ms": -1037336618978.9369 }, "end": { "local": "1937-02-17T20:19:17+03:30", "utc": "1937-02-17T16:49:17Z", "ms": -1037257843404.6296 } }, "kaala": "arunodaya", "days": [ { "local_date": "1937-02-17", "window": { "start": { "local": "1937-02-17T04:33:28+03:30", "utc": "1937-02-17T01:03:28Z", "ms": -1037314591679.1415 }, "end": { "local": "1937-02-17T06:18:11+03:30", "utc": "1937-02-17T02:48:11Z", "ms": -1037308308726.7845 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "1937-02-18", "window": { "start": { "local": "1937-02-18T04:32:36+03:30", "utc": "1937-02-18T01:02:36Z", "ms": -1037228243528.4684 }, "end": { "local": "1937-02-18T06:17:02+03:30", "utc": "1937-02-18T02:47:02Z", "ms": -1037221977881.6312 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 22:26 on Tue 16 Feb to 20:19 on Wed 17 Feb.", "fact": "1937-02-16T18:56:21Z → 1937-02-17T16:49:17Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:33–06:18 on the 17th, 04:33–06:17 on the 18th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during aruṇodaya. It covers 105 of 105 minutes on the 17th and 0 of 104 on the 18th.", "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 22027 s" }, { "step": "ruling", "text": "Ratha Saptamī, Mashhad, 1937: Wednesday 17 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-17", "confidence": "determinate" } ], "quote": "In Mashhad, Ratha Saptamī 1937 falls on Wednesday 17 February. Saptamī runs from 22:26 on Tue 16 Feb to 20:19 on Wed 17 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-02-21", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27019, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-02-20T15:04:04+03:30", "utc": "1937-02-20T11:34:04Z", "ms": -1037017555844.1626 }, "end": { "local": "1937-02-21T13:43:48+03:30", "utc": "1937-02-21T10:13:48Z", "ms": -1036935972419.1069 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-20T15:04:04+03:30", "utc": "1937-02-20T11:34:04Z", "ms": -1037017555844.1626 }, "end": { "local": "1937-02-21T13:43:48+03:30", "utc": "1937-02-21T10:13:48Z", "ms": -1036935972419.1069 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-02-20", "window": { "start": { "local": "1937-02-20T06:14:41+03:30", "utc": "1937-02-20T02:44:41Z", "ms": -1037049319399.0181 }, "end": { "local": "1937-02-20T06:14:41+03:30", "utc": "1937-02-20T02:44:41Z", "ms": -1037049319399.0181 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-02-21", "window": { "start": { "local": "1937-02-21T06:13:28+03:30", "utc": "1937-02-21T02:43:28Z", "ms": -1036962991694.5613 }, "end": { "local": "1937-02-21T06:13:28+03:30", "utc": "1937-02-21T02:43:28Z", "ms": -1036962991694.5613 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:04 on Sat 20 Feb to 13:44 on Sun 21 Feb.", "fact": "1937-02-20T11:34:04Z → 1937-02-21T10:13:48Z" }, { "step": "kaala", "text": "Sunrise is at 06:15 on the 20th and 06:13 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 27019 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Mashhad, 1937: Sunday 21 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": "1937-02-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-21", "confidence": "determinate" } ], "quote": "In Mashhad, Jayā Ekādaśī 1937 falls on Sunday 21 February. Ekādaśī runs from 15:04 on Sat 20 Feb to 13:44 on Sun 21 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-02-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1694, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-02-21T13:43:48+03:30", "utc": "1937-02-21T10:13:48Z", "ms": -1036935972419.1069 }, "end": { "local": "1937-02-22T12:37:46+03:30", "utc": "1937-02-22T09:07:46Z", "ms": -1036853534470.7754 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-21T13:43:48+03:30", "utc": "1937-02-21T10:13:48Z", "ms": -1036935972419.1069 }, "end": { "local": "1937-02-22T12:37:46+03:30", "utc": "1937-02-22T09:07:46Z", "ms": -1036853534470.7754 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-21", "window": { "start": { "local": "1937-02-21T11:21:39+03:30", "utc": "1937-02-21T07:51:39Z", "ms": -1036944501425.8018 }, "end": { "local": "1937-02-21T12:09:39+03:30", "utc": "1937-02-21T08:39:39Z", "ms": -1036941621425.8018 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-02-22", "window": { "start": { "local": "1937-02-22T11:21:31+03:30", "utc": "1937-02-22T07:51:31Z", "ms": -1036858108618.516 }, "end": { "local": "1937-02-22T12:09:31+03:30", "utc": "1937-02-22T08:39:31Z", "ms": -1036855228618.516 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 13:44 on Sun 21 Feb to 12:38 on Mon 22 Feb.", "fact": "1937-02-21T10:13:48Z → 1937-02-22T09:07:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 21st, 11:22–12:10 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1694 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Mashhad, 1937: Monday 22 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": "1937-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-22", "confidence": "determinate" } ], "quote": "In Mashhad, Bhīṣma Dvādaśī 1937 falls on Monday 22 February. Dvādaśī runs from 13:44 on Sun 21 Feb to 12:38 on Mon 22 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/pradosha-vrata?on=1937-02-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16862, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-02-22T12:37:46+03:30", "utc": "1937-02-22T09:07:46Z", "ms": -1036853534470.7754 }, "end": { "local": "1937-02-23T11:48:18+03:30", "utc": "1937-02-23T08:18:18Z", "ms": -1036770102281.241 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-22T12:37:46+03:30", "utc": "1937-02-22T09:07:46Z", "ms": -1036853534470.7754 }, "end": { "local": "1937-02-23T11:48:18+03:30", "utc": "1937-02-23T08:18:18Z", "ms": -1036770102281.241 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-02-22", "window": { "start": { "local": "1937-02-22T17:18:48+03:30", "utc": "1937-02-22T13:48:48Z", "ms": -1036836672267.7576 }, "end": { "local": "1937-02-22T19:01:45+03:30", "utc": "1937-02-22T15:31:45Z", "ms": -1036830494523.8962 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "1937-02-23", "window": { "start": { "local": "1937-02-23T17:19:46+03:30", "utc": "1937-02-23T13:49:46Z", "ms": -1036750213727.5704 }, "end": { "local": "1937-02-23T19:02:26+03:30", "utc": "1937-02-23T15:32:26Z", "ms": -1036744053806.3837 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:38 on Mon 22 Feb to 11:48 on Tue 23 Feb.", "fact": "1937-02-22T09:07:46Z → 1937-02-23T08:18:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:19–19:02 on the 22nd, 17:20–19:02 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 103 of 103 minutes on the 22nd and 0 of 103 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 16862 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Monday 22 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": "1937-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-22", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Monday 22 February. Trayodaśī runs from 12:38 on Mon 22 Feb to 11:48 on Tue 23 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-02-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-24", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 151, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-02-24T11:18:45+03:30", "utc": "1937-02-24T07:48:45Z", "ms": -1036685475459.4958 }, "end": { "local": "1937-02-25T11:13:10+03:30", "utc": "1937-02-25T07:43:10Z", "ms": -1036599409945.692 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-24T11:18:45+03:30", "utc": "1937-02-24T07:48:45Z", "ms": -1036685475459.4958 }, "end": { "local": "1937-02-25T11:13:10+03:30", "utc": "1937-02-25T07:43:10Z", "ms": -1036599409945.692 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-24", "window": { "start": { "local": "1937-02-24T11:21:15+03:30", "utc": "1937-02-24T07:51:15Z", "ms": -1036685324925.3352 }, "end": { "local": "1937-02-24T12:09:15+03:30", "utc": "1937-02-24T08:39:15Z", "ms": -1036682444925.3352 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-25", "window": { "start": { "local": "1937-02-25T11:21:06+03:30", "utc": "1937-02-25T07:51:06Z", "ms": -1036598933999.9033 }, "end": { "local": "1937-02-25T12:09:06+03:30", "utc": "1937-02-25T08:39:06Z", "ms": -1036596053999.9033 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 11:19 on Wed 24 Feb to 11:13 on Thu 25 Feb.", "fact": "1937-02-24T07:48:45Z → 1937-02-25T07:43:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 24th, 11:21–12:09 on the 25th.", "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 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 151 s < 300 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Mashhad, 1937: Wednesday 24 February.", "fact": "confidence: boundary (margin)" } ], "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": "1937-02-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-25", "confidence": "determinate" } ], "quote": "In Mashhad, Māghī Pūrṇimā 1937 falls on Wednesday 24 February. Pūrṇimā runs from 11:19 on Wed 24 Feb to 11:13 on Thu 25 Feb and covers all of madhyāhna that midday. It is 2 min 31 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-02-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-02-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20439, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-02-28T13:56:50+03:30", "utc": "1937-02-28T10:26:50Z", "ms": -1036330390365.9703 }, "end": { "local": "1937-03-01T15:54:52+03:30", "utc": "1937-03-01T12:24:52Z", "ms": -1036236908461.5468 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-02-28T13:56:50+03:30", "utc": "1937-02-28T10:26:50Z", "ms": -1036330390365.9703 }, "end": { "local": "1937-03-01T15:54:52+03:30", "utc": "1937-03-01T12:24:52Z", "ms": -1036236908461.5468 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-02-28", "window": { "start": { "local": "1937-02-28T20:38:06+03:30", "utc": "1937-02-28T17:08:06Z", "ms": -1036306314055.5234 }, "end": { "local": "1937-02-28T20:38:06+03:30", "utc": "1937-02-28T17:08:06Z", "ms": -1036306314055.5234 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-03-01", "window": { "start": { "local": "1937-03-01T21:35:31+03:30", "utc": "1937-03-01T18:05:31Z", "ms": -1036216469108.7758 }, "end": { "local": "1937-03-01T21:35:31+03:30", "utc": "1937-03-01T18:05:31Z", "ms": -1036216469108.7758 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:57 on Sun 28 Feb to 15:55 on Mon 1 Mar.", "fact": "1937-02-28T10:26:50Z → 1937-03-01T12:24:52Z" }, { "step": "kaala", "text": "Moonrise is at 20:38 on the 28th and 21:36 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 28th and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20439 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Sunday 28 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": "1937-02-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-28", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Sunday 28 February. Caturthī runs from 13:57 on Sun 28 Feb to 15:55 on Mon 1 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-02-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-03-08", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2247, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-03-08T04:54:57+03:30", "utc": "1937-03-08T01:24:57Z", "ms": -1035671702858.8733 }, "end": { "local": "1937-03-09T05:14:55+03:30", "utc": "1937-03-09T01:44:55Z", "ms": -1035584105389.5823 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-08T04:54:57+03:30", "utc": "1937-03-08T01:24:57Z", "ms": -1035671702858.8733 }, "end": { "local": "1937-03-09T05:14:55+03:30", "utc": "1937-03-09T01:44:55Z", "ms": -1035584105389.5823 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-03-08", "window": { "start": { "local": "1937-03-08T05:53:45+03:30", "utc": "1937-03-08T02:23:45Z", "ms": -1035668174509.9001 }, "end": { "local": "1937-03-08T05:53:45+03:30", "utc": "1937-03-08T02:23:45Z", "ms": -1035668174509.9001 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-03-09", "window": { "start": { "local": "1937-03-09T05:52:22+03:30", "utc": "1937-03-09T02:22:22Z", "ms": -1035581858411.2513 }, "end": { "local": "1937-03-09T05:52:22+03:30", "utc": "1937-03-09T02:22:22Z", "ms": -1035581858411.2513 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:55 on Mon 8 Mar to 05:15 on Tue 9 Mar.", "fact": "1937-03-08T01:24:57Z → 1937-03-09T01:44:55Z" }, { "step": "kaala", "text": "Sunrise is at 05:54 on the 8th and 05:52 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 8th and is not on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2247 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Mashhad, 1937: Monday 8 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": "1937-03-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-08", "confidence": "determinate" } ], "quote": "In Mashhad, Vijayā Ekādaśī 1937 falls on Monday 8 March. Ekādaśī runs from 04:55 on Mon 8 Mar to 05:15 on Tue 9 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-03-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-03-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29742, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-03-10T04:44:42+03:30", "utc": "1937-03-10T01:14:42Z", "ms": -1035499518461.6006 }, "end": { "local": "1937-03-11T03:27:35+03:30", "utc": "1937-03-10T23:57:35Z", "ms": -1035417744724.8518 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-10T04:44:42+03:30", "utc": "1937-03-10T01:14:42Z", "ms": -1035499518461.6006 }, "end": { "local": "1937-03-11T03:27:35+03:30", "utc": "1937-03-10T23:57:35Z", "ms": -1035417744724.8518 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-03-09", "window": { "start": { "local": "1937-03-09T17:32:53+03:30", "utc": "1937-03-09T14:02:53Z", "ms": -1035539827319.6459 }, "end": { "local": "1937-03-09T19:11:17+03:30", "utc": "1937-03-09T15:41:17Z", "ms": -1035533922712.1084 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "1937-03-10", "window": { "start": { "local": "1937-03-10T17:33:47+03:30", "utc": "1937-03-10T14:03:47Z", "ms": -1035453373241.6638 }, "end": { "local": "1937-03-10T19:11:53+03:30", "utc": "1937-03-10T15:41:53Z", "ms": -1035447487147.5262 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:45 on Wed 10 Mar to 03:28 on Thu 11 Mar.", "fact": "1937-03-10T01:14:42Z → 1937-03-10T23:57:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:33–19:11 on the 9th, 17:34–19:12 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 98 minutes on the 9th and 98 of 98 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29742 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Wednesday 10 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": "1937-03-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-10", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Wednesday 10 March. Trayodaśī runs from 04:45 on Wed 10 Mar to 03:28 on Thu 11 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-03-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5093, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-03-11T03:27:35+03:30", "utc": "1937-03-10T23:57:35Z", "ms": -1035417744724.8518 }, "end": { "local": "1937-03-12T01:30:17+03:30", "utc": "1937-03-11T22:00:17Z", "ms": -1035338382711.5427 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-11T03:27:35+03:30", "utc": "1937-03-10T23:57:35Z", "ms": -1035417744724.8518 }, "end": { "local": "1937-03-12T01:30:17+03:30", "utc": "1937-03-11T22:00:17Z", "ms": -1035338382711.5427 } }, "kaala": "nishita", "days": [ { "local_date": "1937-03-10", "window": { "start": { "local": "1937-03-10T23:17:40+03:30", "utc": "1937-03-10T19:47:40Z", "ms": -1035432740388.648 }, "end": { "local": "1937-03-11T00:05:40+03:30", "utc": "1937-03-10T20:35:40Z", "ms": -1035429860388.648 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-03-11", "window": { "start": { "local": "1937-03-11T23:17:24+03:30", "utc": "1937-03-11T19:47:24Z", "ms": -1035346356055.7686 }, "end": { "local": "1937-03-12T00:05:24+03:30", "utc": "1937-03-11T20:35:24Z", "ms": -1035343476055.7686 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:28 on Thu 11 Mar to 01:30 on Fri 12 Mar.", "fact": "1937-03-10T23:57:35Z → 1937-03-11T22:00:17Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:18–00:06 on the 10th, 23:17–00:05 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 5093 s" }, { "step": "ruling", "text": "Mahāśivarātri, Mashhad, 1937: Thursday 11 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-03-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-11", "confidence": "determinate" } ], "quote": "In Mashhad, Mahāśivarātri 1937 falls on Thursday 11 March. Caturdaśī runs from 03:28 on Thu 11 Mar to 01:30 on Fri 12 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-03-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 369, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-03-15T14:06:53+03:30", "utc": "1937-03-15T10:36:53Z", "ms": -1035033786580.2783 }, "end": { "local": "1937-03-16T11:10:36+03:30", "utc": "1937-03-16T07:40:36Z", "ms": -1034957964156.7985 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-15T14:06:53+03:30", "utc": "1937-03-15T10:36:53Z", "ms": -1035033786580.2783 }, "end": { "local": "1937-03-16T11:10:36+03:30", "utc": "1937-03-16T07:40:36Z", "ms": -1034957964156.7985 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-03-15", "window": { "start": { "local": "1937-03-15T11:17:02+03:30", "utc": "1937-03-15T07:47:02Z", "ms": -1035043978366.5642 }, "end": { "local": "1937-03-15T12:05:02+03:30", "utc": "1937-03-15T08:35:02Z", "ms": -1035041098366.5642 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-03-16", "window": { "start": { "local": "1937-03-16T11:16:45+03:30", "utc": "1937-03-16T07:46:45Z", "ms": -1034957595263.9988 }, "end": { "local": "1937-03-16T12:04:45+03:30", "utc": "1937-03-16T08:34:45Z", "ms": -1034954715263.9988 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:07 on Mon 15 Mar to 11:11 on Tue 16 Mar.", "fact": "1937-03-15T10:36:53Z → 1937-03-16T07:40:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:17–12:05 on the 15th, 11:17–12:05 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 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": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: unstated → second-day · margin 369 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Tuesday 16 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": "1937-03-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-16", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Tuesday 16 March. Caturthī runs from 14:07 on Mon 15 Mar to 11:11 on Tue 16 Mar, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-03-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-03-22", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17817, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-03-22T00:36:43+03:30", "utc": "1937-03-21T21:06:43Z", "ms": -1034477596542.8887 }, "end": { "local": "1937-03-23T00:15:12+03:30", "utc": "1937-03-22T20:45:12Z", "ms": -1034392488376.4066 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-22T00:36:43+03:30", "utc": "1937-03-21T21:06:43Z", "ms": -1034477596542.8887 }, "end": { "local": "1937-03-23T00:15:12+03:30", "utc": "1937-03-22T20:45:12Z", "ms": -1034392488376.4066 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-03-22", "window": { "start": { "local": "1937-03-22T05:33:40+03:30", "utc": "1937-03-22T02:03:40Z", "ms": -1034459779964.4023 }, "end": { "local": "1937-03-22T05:33:40+03:30", "utc": "1937-03-22T02:03:40Z", "ms": -1034459779964.4023 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-03-23", "window": { "start": { "local": "1937-03-23T05:32:12+03:30", "utc": "1937-03-23T02:02:12Z", "ms": -1034373467627.3873 }, "end": { "local": "1937-03-23T05:32:12+03:30", "utc": "1937-03-23T02:02:12Z", "ms": -1034373467627.3873 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:37 on Mon 22 Mar to 00:15 on Tue 23 Mar.", "fact": "1937-03-21T21:06:43Z → 1937-03-22T20:45:12Z" }, { "step": "kaala", "text": "Sunrise is at 05:34 on the 22nd and 05:32 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17817 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Mashhad, 1937: Monday 22 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": "1937-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-22", "confidence": "determinate" } ], "quote": "In Mashhad, Āmalakī Ekādaśī 1937 falls on Monday 22 March. Ekādaśī runs from 00:37 on Mon 22 Mar to 00:15 on Tue 23 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-03-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-03-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17844, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-03-24T00:16:38+03:30", "utc": "1937-03-23T20:46:38Z", "ms": -1034306002025.6149 }, "end": { "local": "1937-03-25T00:41:06+03:30", "utc": "1937-03-24T21:11:06Z", "ms": -1034218133957.6456 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-24T00:16:38+03:30", "utc": "1937-03-23T20:46:38Z", "ms": -1034306002025.6149 }, "end": { "local": "1937-03-25T00:41:06+03:30", "utc": "1937-03-24T21:11:06Z", "ms": -1034218133957.6456 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-03-23", "window": { "start": { "local": "1937-03-23T17:45:09+03:30", "utc": "1937-03-23T14:15:09Z", "ms": -1034329490589.3586 }, "end": { "local": "1937-03-23T19:19:14+03:30", "utc": "1937-03-23T15:49:14Z", "ms": -1034323845889.4795 } }, "covered_min": 0, "window_min": 94, "qualifies": false }, { "local_date": "1937-03-24", "window": { "start": { "local": "1937-03-24T17:46:01+03:30", "utc": "1937-03-24T14:16:01Z", "ms": -1034243039349.4604 }, "end": { "local": "1937-03-24T19:19:47+03:30", "utc": "1937-03-24T15:49:47Z", "ms": -1034237413179.11 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:17 on Wed 24 Mar to 00:41 on Thu 25 Mar.", "fact": "1937-03-23T20:46:38Z → 1937-03-24T21:11:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:45–19:19 on the 23rd, 17:46–19:20 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 94 minutes on the 23rd and 94 of 94 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17844 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Wednesday 24 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": "1937-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-24", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Wednesday 24 March. Trayodaśī runs from 00:17 on Wed 24 Mar to 00:41 on Thu 25 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-03-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27746, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-03-26T01:29:18+03:30", "utc": "1937-03-25T21:59:18Z", "ms": -1034128841823.4089 }, "end": { "local": "1937-03-27T02:42:11+03:30", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-26T01:29:18+03:30", "utc": "1937-03-25T21:59:18Z", "ms": -1034128841823.4089 }, "end": { "local": "1937-03-27T02:42:11+03:30", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 } }, "kaala": "sayahna", "days": [ { "local_date": "1937-03-25", "window": { "start": { "local": "1937-03-25T15:19:21+03:30", "utc": "1937-03-25T11:49:21Z", "ms": -1034165439196.1709 }, "end": { "local": "1937-03-25T17:46:52+03:30", "utc": "1937-03-25T14:16:52Z", "ms": -1034156588227.2557 } }, "covered_min": 0, "window_min": 148, "qualifies": false }, { "local_date": "1937-03-26", "window": { "start": { "local": "1937-03-26T15:19:44+03:30", "utc": "1937-03-26T11:49:44Z", "ms": -1034079015923.8478 }, "end": { "local": "1937-03-26T17:47:43+03:30", "utc": "1937-03-26T14:17:43Z", "ms": -1034070137207.1184 } }, "covered_min": 148, "window_min": 148, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:29 on Fri 26 Mar to 02:42 on Sat 27 Mar.", "fact": "1937-03-25T21:59:18Z → 1937-03-26T23:12:11Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:19–17:47 on the 25th, 15:20–17:48 on the 26th.", "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 148 minutes on the 25th and 148 of 148 on the 26th.", "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 27746 s" }, { "step": "ruling", "text": "Holikā Dahana, Mashhad, 1937: Friday 26 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": "1937-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-26", "confidence": "determinate" } ], "quote": "In Mashhad, Holikā Dahana 1937 falls on Friday 26 March. Pūrṇimā runs from 01:29 on Fri 26 Mar to 02:42 on Sat 27 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27746, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-03-26T01:29:18+03:30", "utc": "1937-03-25T21:59:18Z", "ms": -1034128841823.4089 }, "end": { "local": "1937-03-27T02:42:11+03:30", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-26T01:29:18+03:30", "utc": "1937-03-25T21:59:18Z", "ms": -1034128841823.4089 }, "end": { "local": "1937-03-27T02:42:11+03:30", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 } }, "kaala": "sayahna", "days": [ { "local_date": "1937-03-25", "window": { "start": { "local": "1937-03-25T15:19:21+03:30", "utc": "1937-03-25T11:49:21Z", "ms": -1034165439196.1709 }, "end": { "local": "1937-03-25T17:46:52+03:30", "utc": "1937-03-25T14:16:52Z", "ms": -1034156588227.2557 } }, "covered_min": 0, "window_min": 148, "qualifies": false }, { "local_date": "1937-03-26", "window": { "start": { "local": "1937-03-26T15:19:44+03:30", "utc": "1937-03-26T11:49:44Z", "ms": -1034079015923.8478 }, "end": { "local": "1937-03-26T17:47:43+03:30", "utc": "1937-03-26T14:17:43Z", "ms": -1034070137207.1184 } }, "covered_min": 148, "window_min": 148, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1937-03-26", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:29 on Fri 26 Mar to 02:42 on Sat 27 Mar.", "fact": "1937-03-25T21:59:18Z → 1937-03-26T23:12:11Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:19–17:47 on the 25th, 15:20–17:48 on the 26th.", "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 148 minutes on the 25th and 148 of 148 on the 26th.", "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 27746 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Friday 26 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Mashhad, 1937: Saturday 27 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": "1937-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-27", "confidence": "determinate" } ], "quote": "In Mashhad, Holī 1937 falls on Saturday 27 March. It is kept the day after Holikā Dahana, which falls on Friday 26 March. Pūrṇimā runs from 01:29 on Fri 26 Mar to 02:42 on Sat 27 Mar and covers all of sāyāhna on the 26th.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3882, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-03-27T02:42:11+03:30", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 }, "end": { "local": "1937-03-28T04:20:12+03:30", "utc": "1937-03-28T00:50:12Z", "ms": -1033945787698.5709 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-03-27T02:42:11+03:30", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 }, "end": { "local": "1937-03-28T04:20:12+03:30", "utc": "1937-03-28T00:50:12Z", "ms": -1033945787698.5709 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-03-27", "window": { "start": { "local": "1937-03-27T05:26:22+03:30", "utc": "1937-03-27T01:56:22Z", "ms": -1034028218465.671 }, "end": { "local": "1937-03-27T05:26:22+03:30", "utc": "1937-03-27T01:56:22Z", "ms": -1034028218465.671 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-03-28", "window": { "start": { "local": "1937-03-28T05:24:54+03:30", "utc": "1937-03-28T01:54:54Z", "ms": -1033941906065.1189 }, "end": { "local": "1937-03-28T05:24:54+03:30", "utc": "1937-03-28T01:54:54Z", "ms": -1033941906065.1189 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:42 on Sat 27 Mar to 04:20 on Sun 28 Mar.", "fact": "1937-03-26T23:12:11Z → 1937-03-28T00:50:12Z" }, { "step": "kaala", "text": "Sunrise is at 05:26 on the 27th and 05:25 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3882 s" }, { "step": "ruling", "text": "Vasantotsava, Mashhad, 1937: Saturday 27 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": "1937-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-27", "confidence": "determinate" } ], "quote": "In Mashhad, Vasantotsava 1937 falls on Saturday 27 March. Pratipadā runs from 02:42 on Sat 27 Mar to 04:20 on Sun 28 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-03-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39136, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-03-30T08:44:49+03:30", "utc": "1937-03-30T05:14:49Z", "ms": -1033757110508.8268 }, "end": { "local": "1937-03-31T11:20:53+03:30", "utc": "1937-03-31T07:50:53Z", "ms": -1033661347135.7753 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-03-30T08:44:49+03:30", "utc": "1937-03-30T05:14:49Z", "ms": -1033757110508.8268 }, "end": { "local": "1937-03-31T11:20:53+03:30", "utc": "1937-03-31T07:50:53Z", "ms": -1033661347135.7753 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-03-30", "window": { "start": { "local": "1937-03-30T21:18:42+03:30", "utc": "1937-03-30T17:48:42Z", "ms": -1033711877816.2833 }, "end": { "local": "1937-03-30T21:18:42+03:30", "utc": "1937-03-30T17:48:42Z", "ms": -1033711877816.2833 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-03-31", "window": { "start": { "local": "1937-03-31T22:13:09+03:30", "utc": "1937-03-31T18:43:09Z", "ms": -1033622211375.131 }, "end": { "local": "1937-03-31T22:13:09+03:30", "utc": "1937-03-31T18:43:09Z", "ms": -1033622211375.131 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:45 on Tue 30 Mar to 11:21 on Wed 31 Mar.", "fact": "1937-03-30T05:14:49Z → 1937-03-31T07:50:53Z" }, { "step": "kaala", "text": "Moonrise is at 21:19 on the 30th and 22:13 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 39136 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Tuesday 30 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": "1937-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-30", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Tuesday 30 March. Caturthī runs from 08:45 on Tue 30 Mar to 11:21 on Wed 31 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-03-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23669, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-04-03T18:33:50+03:30", "utc": "1937-04-03T15:03:50Z", "ms": -1033376170285.8031 }, "end": { "local": "1937-04-04T20:01:25+03:30", "utc": "1937-04-04T16:31:25Z", "ms": -1033284515428.3557 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-03T18:33:50+03:30", "utc": "1937-04-03T15:03:50Z", "ms": -1033376170285.8031 }, "end": { "local": "1937-04-04T20:01:25+03:30", "utc": "1937-04-04T16:31:25Z", "ms": -1033284515428.3557 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-03", "window": { "start": { "local": "1937-04-03T11:11:20+03:30", "utc": "1937-04-03T07:41:20Z", "ms": -1033402719651.92 }, "end": { "local": "1937-04-03T11:59:20+03:30", "utc": "1937-04-03T08:29:20Z", "ms": -1033399839651.92 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-04", "window": { "start": { "local": "1937-04-04T11:11:03+03:30", "utc": "1937-04-04T07:41:03Z", "ms": -1033316337387.9832 }, "end": { "local": "1937-04-04T11:59:03+03:30", "utc": "1937-04-04T08:29:03Z", "ms": -1033313457387.9832 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:34 on Sat 3 Apr to 20:01 on Sun 4 Apr.", "fact": "1937-04-03T15:03:50Z → 1937-04-04T16:31:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 3rd, 11:11–11:59 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23669 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Mashhad, 1937: Sunday 4 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitalashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Sitalastami, (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-04", "confidence": "determinate" } ], "quote": "In Mashhad, Śītalāṣṭamī 1937 falls on Sunday 4 April. Aṣṭamī runs from 18:34 on Sat 3 Apr to 20:01 on Sun 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-04-07", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31153, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-04-06T20:31:16+03:30", "utc": "1937-04-06T17:01:16Z", "ms": -1033109924477.1584 }, "end": { "local": "1937-04-07T19:28:24+03:30", "utc": "1937-04-07T15:58:24Z", "ms": -1033027296184.0668 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-06T20:31:16+03:30", "utc": "1937-04-06T17:01:16Z", "ms": -1033109924477.1584 }, "end": { "local": "1937-04-07T19:28:24+03:30", "utc": "1937-04-07T15:58:24Z", "ms": -1033027296184.0668 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-04-07", "window": { "start": { "local": "1937-04-07T05:10:29+03:30", "utc": "1937-04-07T01:40:29Z", "ms": -1033078771042.2753 }, "end": { "local": "1937-04-07T05:10:29+03:30", "utc": "1937-04-07T01:40:29Z", "ms": -1033078771042.2753 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-04-08", "window": { "start": { "local": "1937-04-08T05:09:04+03:30", "utc": "1937-04-08T01:39:04Z", "ms": -1032992455763.7977 }, "end": { "local": "1937-04-08T05:09:04+03:30", "utc": "1937-04-08T01:39:04Z", "ms": -1032992455763.7977 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:31 on Tue 6 Apr to 19:28 on Wed 7 Apr.", "fact": "1937-04-06T17:01:16Z → 1937-04-07T15:58:24Z" }, { "step": "kaala", "text": "Sunrise is at 05:10 on the 7th and 05:09 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31153 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Mashhad, 1937: Wednesday 7 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": "1937-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-07", "confidence": "determinate" } ], "quote": "In Mashhad, Pāpamocanī Ekādaśī 1937 falls on Wednesday 7 April. Ekādaśī runs from 20:31 on Tue 6 Apr to 19:28 on Wed 7 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-04-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-04-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1262, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-04-08T17:37:41+03:30", "utc": "1937-04-08T14:07:41Z", "ms": -1032947538916.8247 }, "end": { "local": "1937-04-09T15:06:20+03:30", "utc": "1937-04-09T11:36:20Z", "ms": -1032870219815.2653 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-08T17:37:41+03:30", "utc": "1937-04-08T14:07:41Z", "ms": -1032947538916.8247 }, "end": { "local": "1937-04-09T15:06:20+03:30", "utc": "1937-04-09T11:36:20Z", "ms": -1032870219815.2653 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-04-08", "window": { "start": { "local": "1937-04-08T17:58:43+03:30", "utc": "1937-04-08T14:28:43Z", "ms": -1032946277084.4122 }, "end": { "local": "1937-04-08T19:27:55+03:30", "utc": "1937-04-08T15:57:55Z", "ms": -1032940925479.0887 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "1937-04-09", "window": { "start": { "local": "1937-04-09T17:59:34+03:30", "utc": "1937-04-09T14:29:34Z", "ms": -1032859826196.7485 }, "end": { "local": "1937-04-09T19:28:27+03:30", "utc": "1937-04-09T15:58:27Z", "ms": -1032854492551.4889 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:38 on Thu 8 Apr to 15:06 on Fri 9 Apr.", "fact": "1937-04-08T14:07:41Z → 1937-04-09T11:36:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:59–19:28 on the 8th, 18:00–19:28 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 89 of 89 minutes on the 8th and 0 of 89 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1262 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Thursday 8 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": "1937-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-08", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Thursday 8 April. Trayodaśī runs from 17:38 on Thu 8 Apr to 15:06 on Fri 9 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-04-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-04-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28955, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-04-09T15:06:20+03:30", "utc": "1937-04-09T11:36:20Z", "ms": -1032870219815.2653 }, "end": { "local": "1937-04-10T12:03:37+03:30", "utc": "1937-04-10T08:33:37Z", "ms": -1032794783326.0587 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-09T15:06:20+03:30", "utc": "1937-04-09T11:36:20Z", "ms": -1032870219815.2653 }, "end": { "local": "1937-04-10T12:03:37+03:30", "utc": "1937-04-10T08:33:37Z", "ms": -1032794783326.0587 } }, "kaala": "nishita", "days": [ { "local_date": "1937-04-09", "window": { "start": { "local": "1937-04-09T23:08:55+03:30", "utc": "1937-04-09T19:38:55Z", "ms": -1032841265027.0251 }, "end": { "local": "1937-04-09T23:56:55+03:30", "utc": "1937-04-09T20:26:55Z", "ms": -1032838385027.0251 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-10", "window": { "start": { "local": "1937-04-10T23:08:39+03:30", "utc": "1937-04-10T19:38:39Z", "ms": -1032754881221.5684 }, "end": { "local": "1937-04-10T23:56:39+03:30", "utc": "1937-04-10T20:26:39Z", "ms": -1032752001221.5684 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:06 on Fri 9 Apr to 12:04 on Sat 10 Apr.", "fact": "1937-04-09T11:36:20Z → 1937-04-10T08:33:37Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:09–23:57 on the 9th, 23:09–23:57 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28955 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Friday 9 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": "1937-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-09", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Friday 9 April. Caturdaśī runs from 15:06 on Fri 9 Apr to 12:04 on Sat 10 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-04-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8953, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-04-11T08:39:51+03:30", "utc": "1937-04-11T05:09:51Z", "ms": -1032720608919.9813 }, "end": { "local": "1937-04-12T05:05:44+03:30", "utc": "1937-04-12T01:35:44Z", "ms": -1032647056196.4641 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-11T08:39:51+03:30", "utc": "1937-04-11T05:09:51Z", "ms": -1032720608919.9813 }, "end": { "local": "1937-04-12T05:05:44+03:30", "utc": "1937-04-12T01:35:44Z", "ms": -1032647056196.4641 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-11", "window": { "start": { "local": "1937-04-11T11:09:04+03:30", "utc": "1937-04-11T07:39:04Z", "ms": -1032711655735.6978 }, "end": { "local": "1937-04-11T11:57:04+03:30", "utc": "1937-04-11T08:27:04Z", "ms": -1032708775735.6978 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-12", "window": { "start": { "local": "1937-04-12T11:08:48+03:30", "utc": "1937-04-12T07:38:48Z", "ms": -1032625271629.814 }, "end": { "local": "1937-04-12T11:56:48+03:30", "utc": "1937-04-12T08:26:48Z", "ms": -1032622391629.814 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 08:40 on Sun 11 Apr to 05:06 on Mon 12 Apr.", "fact": "1937-04-11T05:09:51Z → 1937-04-12T01:35:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 11th, 11:09–11:57 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8953 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Mashhad, 1937: Sunday 11 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-11", "confidence": "determinate" } ], "quote": "In Mashhad, Navarātrārambha (Caitra) (Chaitra Navratri) 1937 falls on Sunday 11 April. Pratipadā runs from 08:40 on Sun 11 Apr to 05:06 on Mon 12 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23801, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1937-04-13T11:38:49+03:30", "utc": "1937-04-13T08:08:49Z", "ms": -1032537070853.9725 }, "end": { "local": "1937-05-14T08:39:26+03:30", "utc": "1937-05-14T05:09:26Z", "ms": -1029869434241.6577 } }, "span": { "of": "transit", "start": { "local": "1937-04-13T11:38:49+03:30", "utc": "1937-04-13T08:08:49Z", "ms": -1032537070853.9725 }, "end": { "local": "1937-04-13T11:38:49+03:30", "utc": "1937-04-13T08:08:49Z", "ms": -1032537070853.9725 } }, "kaala": "day", "days": [ { "local_date": "1937-04-12", "window": { "start": { "local": "1937-04-12T05:03:30+03:30", "utc": "1937-04-12T01:33:30Z", "ms": -1032647189976.4021 }, "end": { "local": "1937-04-13T05:02:08+03:30", "utc": "1937-04-13T01:32:08Z", "ms": -1032560872232.8876 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "1937-04-13", "window": { "start": { "local": "1937-04-13T05:02:08+03:30", "utc": "1937-04-13T01:32:08Z", "ms": -1032560872232.8876 }, "end": { "local": "1937-04-14T05:00:46+03:30", "utc": "1937-04-14T01:30:46Z", "ms": -1032474553920.8044 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 11:39 on Tue 13 Apr.", "fact": "1937-04-13T08:08:49Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:04 on the 12th, and from 05:02 on the 13th.", "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 12th.", "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 23801 s" }, { "step": "ruling", "text": "Vaiśākhī, Mashhad, 1937: Tuesday 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": "1937-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1937-04-13", "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": "1937-04-13", "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 Mashhad, Vaiśākhī 1937 falls on Tuesday 13 April. The Sun enters Meṣa at 11:39 on Tue 13 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34612, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-04-13T01:31:41+03:30", "utc": "1937-04-12T22:01:41Z", "ms": -1032573499218.6879 }, "end": { "local": "1937-04-13T22:07:26+03:30", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-13T01:31:41+03:30", "utc": "1937-04-12T22:01:41Z", "ms": -1032573499218.6879 }, "end": { "local": "1937-04-13T22:07:26+03:30", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-13", "window": { "start": { "local": "1937-04-13T11:08:33+03:30", "utc": "1937-04-13T07:38:33Z", "ms": -1032538887233.3472 }, "end": { "local": "1937-04-13T11:56:33+03:30", "utc": "1937-04-13T08:26:33Z", "ms": -1032536007233.3472 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-14", "window": { "start": { "local": "1937-04-14T11:08:17+03:30", "utc": "1937-04-14T07:38:17Z", "ms": -1032452502535.2756 }, "end": { "local": "1937-04-14T11:56:17+03:30", "utc": "1937-04-14T08:26:17Z", "ms": -1032449622535.2756 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:32 on Tue 13 Apr to 22:07 on Tue 13 Apr.", "fact": "1937-04-12T22:01:41Z → 1937-04-13T18:37:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 13th, 11:08–11:56 on the 14th.", "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 13th and 0 of 48 on the 14th.", "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 34612 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Mashhad, 1937: Tuesday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-13", "confidence": "determinate" } ], "quote": "In Mashhad, Gaurī Tṛtīyā (Gangaur) 1937 falls on Tuesday 13 April. Tṛtīyā runs from 01:32 on Tue 13 Apr to 22:07 on Tue 13 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34612, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-04-13T01:31:41+03:30", "utc": "1937-04-12T22:01:41Z", "ms": -1032573499218.6879 }, "end": { "local": "1937-04-13T22:07:26+03:30", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-13T01:31:41+03:30", "utc": "1937-04-12T22:01:41Z", "ms": -1032573499218.6879 }, "end": { "local": "1937-04-13T22:07:26+03:30", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-13", "window": { "start": { "local": "1937-04-13T11:08:33+03:30", "utc": "1937-04-13T07:38:33Z", "ms": -1032538887233.3472 }, "end": { "local": "1937-04-13T11:56:33+03:30", "utc": "1937-04-13T08:26:33Z", "ms": -1032536007233.3472 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-14", "window": { "start": { "local": "1937-04-14T11:08:17+03:30", "utc": "1937-04-14T07:38:17Z", "ms": -1032452502535.2756 }, "end": { "local": "1937-04-14T11:56:17+03:30", "utc": "1937-04-14T08:26:17Z", "ms": -1032449622535.2756 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:32 on Tue 13 Apr to 22:07 on Tue 13 Apr.", "fact": "1937-04-12T22:01:41Z → 1937-04-13T18:37:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 13th, 11:08–11:56 on the 14th.", "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 13th and 0 of 48 on the 14th.", "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 34612 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Mashhad, 1937: Tuesday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-13", "confidence": "determinate" } ], "quote": "In Mashhad, Saubhāgya Śayana Vrata 1937 falls on Tuesday 13 April. Tṛtīyā runs from 01:32 on Tue 13 Apr to 22:07 on Tue 13 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-04-14", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25521, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-04-13T22:07:26+03:30", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 }, "end": { "local": "1937-04-14T19:01:38+03:30", "utc": "1937-04-14T15:31:38Z", "ms": -1032424101634.4401 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-13T22:07:26+03:30", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 }, "end": { "local": "1937-04-14T19:01:38+03:30", "utc": "1937-04-14T15:31:38Z", "ms": -1032424101634.4401 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-13", "window": { "start": { "local": "1937-04-13T11:08:33+03:30", "utc": "1937-04-13T07:38:33Z", "ms": -1032538887233.3472 }, "end": { "local": "1937-04-13T11:56:33+03:30", "utc": "1937-04-13T08:26:33Z", "ms": -1032536007233.3472 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-14", "window": { "start": { "local": "1937-04-14T11:08:17+03:30", "utc": "1937-04-14T07:38:17Z", "ms": -1032452502535.2756 }, "end": { "local": "1937-04-14T11:56:17+03:30", "utc": "1937-04-14T08:26:17Z", "ms": -1032449622535.2756 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:07 on Tue 13 Apr to 19:02 on Wed 14 Apr.", "fact": "1937-04-13T18:37:26Z → 1937-04-14T15:31:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 13th, 11:08–11:56 on the 14th.", "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 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25521 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Wednesday 14 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": "1937-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-14", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Wednesday 14 April. Caturthī runs from 22:07 on Tue 13 Apr to 19:02 on Wed 14 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-04-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15926, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-04-14T19:01:38+03:30", "utc": "1937-04-14T15:31:38Z", "ms": -1032424101634.4401 }, "end": { "local": "1937-04-15T16:21:29+03:30", "utc": "1937-04-15T12:51:29Z", "ms": -1032347311355.4716 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-14T19:01:38+03:30", "utc": "1937-04-14T15:31:38Z", "ms": -1032424101634.4401 }, "end": { "local": "1937-04-15T16:21:29+03:30", "utc": "1937-04-15T12:51:29Z", "ms": -1032347311355.4716 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-14", "window": { "start": { "local": "1937-04-14T11:08:17+03:30", "utc": "1937-04-14T07:38:17Z", "ms": -1032452502535.2756 }, "end": { "local": "1937-04-14T11:56:17+03:30", "utc": "1937-04-14T08:26:17Z", "ms": -1032449622535.2756 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-15", "window": { "start": { "local": "1937-04-15T11:08:02+03:30", "utc": "1937-04-15T07:38:02Z", "ms": -1032366117524.0928 }, "end": { "local": "1937-04-15T11:56:02+03:30", "utc": "1937-04-15T08:26:02Z", "ms": -1032363237524.0928 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 19:02 on Wed 14 Apr to 16:21 on Thu 15 Apr.", "fact": "1937-04-14T15:31:38Z → 1937-04-15T12:51:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 14th, 11:08–11:56 on the 15th.", "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 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15926 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Mashhad, 1937: Thursday 15 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-15", "confidence": "determinate" } ], "quote": "In Mashhad, Lakṣmī Pañcamī 1937 falls on Thursday 15 April. Pañcamī runs from 19:02 on Wed 14 Apr to 16:21 on Thu 15 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-18", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 505, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1937-04-18T11:38:56+03:30", "utc": "1937-04-18T08:08:56Z", "ms": -1032105064496.9614 }, "end": { "local": "1937-04-19T11:15:31+03:30", "utc": "1937-04-19T07:45:31Z", "ms": -1032020068684.4708 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-18T11:38:56+03:30", "utc": "1937-04-18T08:08:56Z", "ms": -1032105064496.9614 }, "end": { "local": "1937-04-19T11:15:31+03:30", "utc": "1937-04-19T07:45:31Z", "ms": -1032020068684.4708 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-18", "window": { "start": { "local": "1937-04-18T11:07:20+03:30", "utc": "1937-04-18T07:37:20Z", "ms": -1032106960483.8245 }, "end": { "local": "1937-04-18T11:55:20+03:30", "utc": "1937-04-18T08:25:20Z", "ms": -1032104080483.8245 } }, "covered_min": 16, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-19", "window": { "start": { "local": "1937-04-19T11:07:06+03:30", "utc": "1937-04-19T07:37:06Z", "ms": -1032020574087.9346 }, "end": { "local": "1937-04-19T11:55:06+03:30", "utc": "1937-04-19T08:25:06Z", "ms": -1032017694087.9346 } }, "covered_min": 8, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Navamī runs from 11:39 on Sun 18 Apr to 11:16 on Mon 19 Apr.", "fact": "1937-04-18T08:08:56Z → 1937-04-19T07:45:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 18th, 11:07–11:55 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 16 of 48 minutes on the 18th and 8 of 48 on the 19th.", "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 505 s" }, { "step": "ruling", "text": "Rāma Navamī, Mashhad, 1937: Sunday 18 April.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1937-04-18", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-18", "confidence": "boundary" } ], "quote": "In Mashhad, Rāma Navamī 1937 falls on Sunday 18 April. Navamī runs from 11:39 on Sun 18 Apr to 11:16 on Mon 19 Apr and covers 16 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 8 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/mashhad/festivals/1937/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": "/mashhad/festivals/1937/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 984, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-04-17T12:37:43+03:30", "utc": "1937-04-17T09:07:43Z", "ms": -1032187937025.9424 }, "end": { "local": "1937-04-18T11:38:56+03:30", "utc": "1937-04-18T08:08:56Z", "ms": -1032105064496.9614 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-17T12:37:43+03:30", "utc": "1937-04-17T09:07:43Z", "ms": -1032187937025.9424 }, "end": { "local": "1937-04-18T11:38:56+03:30", "utc": "1937-04-18T08:08:56Z", "ms": -1032105064496.9614 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-17", "window": { "start": { "local": "1937-04-17T11:07:33+03:30", "utc": "1937-04-17T07:37:33Z", "ms": -1032193346512.0759 }, "end": { "local": "1937-04-17T11:55:33+03:30", "utc": "1937-04-17T08:25:33Z", "ms": -1032190466512.0759 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-18", "window": { "start": { "local": "1937-04-18T11:07:20+03:30", "utc": "1937-04-18T07:37:20Z", "ms": -1032106960483.8245 }, "end": { "local": "1937-04-18T11:55:20+03:30", "utc": "1937-04-18T08:25:20Z", "ms": -1032104080483.8245 } }, "covered_min": 32, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:38 on Sat 17 Apr to 11:39 on Sun 18 Apr.", "fact": "1937-04-17T09:07:43Z → 1937-04-18T08:08:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 17th, 11:07–11:55 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 32 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 984 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Mashhad, 1937: Sunday 18 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhavani-utpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-18", "confidence": "determinate" } ], "quote": "In Mashhad, Bhavānī Utpatti 1937 falls on Sunday 18 April. Aṣṭamī runs from 12:38 on Sat 17 Apr to 11:39 on Sun 18 Apr and covers 32 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-04-21", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23567, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-04-20T11:25:36+03:30", "utc": "1937-04-20T07:55:36Z", "ms": -1031933064054.0359 }, "end": { "local": "1937-04-21T12:06:22+03:30", "utc": "1937-04-21T08:36:22Z", "ms": -1031844218329.8497 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-20T11:25:36+03:30", "utc": "1937-04-20T07:55:36Z", "ms": -1031933064054.0359 }, "end": { "local": "1937-04-21T12:06:22+03:30", "utc": "1937-04-21T08:36:22Z", "ms": -1031844218329.8497 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-04-20", "window": { "start": { "local": "1937-04-20T04:52:49+03:30", "utc": "1937-04-20T01:22:49Z", "ms": -1031956630601.588 }, "end": { "local": "1937-04-20T04:52:49+03:30", "utc": "1937-04-20T01:22:49Z", "ms": -1031956630601.588 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-04-21", "window": { "start": { "local": "1937-04-21T04:51:32+03:30", "utc": "1937-04-21T01:21:32Z", "ms": -1031870307538.7994 }, "end": { "local": "1937-04-21T04:51:32+03:30", "utc": "1937-04-21T01:21:32Z", "ms": -1031870307538.7994 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:26 on Tue 20 Apr to 12:06 on Wed 21 Apr.", "fact": "1937-04-20T07:55:36Z → 1937-04-21T08:36:22Z" }, { "step": "kaala", "text": "Sunrise is at 04:53 on the 20th and 04:52 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 23567 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Mashhad, 1937: Wednesday 21 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": "1937-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-21", "confidence": "determinate" } ], "quote": "In Mashhad, Kāmadā Ekādaśī 1937 falls on Wednesday 21 April. Ekādaśī runs from 11:26 on Tue 20 Apr to 12:06 on Wed 21 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-04-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-04-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12247, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-04-22T13:14:40+03:30", "utc": "1937-04-22T09:44:40Z", "ms": -1031753720106.3541 }, "end": { "local": "1937-04-23T14:47:23+03:30", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-22T13:14:40+03:30", "utc": "1937-04-22T09:44:40Z", "ms": -1031753720106.3541 }, "end": { "local": "1937-04-23T14:47:23+03:30", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-04-22", "window": { "start": { "local": "1937-04-22T18:10:39+03:30", "utc": "1937-04-22T14:40:39Z", "ms": -1031735961404.7876 }, "end": { "local": "1937-04-22T19:35:46+03:30", "utc": "1937-04-22T16:05:46Z", "ms": -1031730854416.3469 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1937-04-23", "window": { "start": { "local": "1937-04-23T18:11:30+03:30", "utc": "1937-04-23T14:41:30Z", "ms": -1031649510053.7078 }, "end": { "local": "1937-04-23T19:36:20+03:30", "utc": "1937-04-23T16:06:20Z", "ms": -1031644419839.2615 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:15 on Thu 22 Apr to 14:47 on Fri 23 Apr.", "fact": "1937-04-22T09:44:40Z → 1937-04-23T11:17:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:11–19:36 on the 22nd, 18:11–19:36 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 85 of 85 minutes on the 22nd and 0 of 85 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 12247 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Thursday 22 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": "1937-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-22", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Thursday 22 April. Trayodaśī runs from 13:15 on Thu 22 Apr to 14:47 on Fri 23 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-04-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4812, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-04-22T13:14:40+03:30", "utc": "1937-04-22T09:44:40Z", "ms": -1031753720106.3541 }, "end": { "local": "1937-04-23T14:47:23+03:30", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-22T13:14:40+03:30", "utc": "1937-04-22T09:44:40Z", "ms": -1031753720106.3541 }, "end": { "local": "1937-04-23T14:47:23+03:30", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-22", "window": { "start": { "local": "1937-04-22T11:06:27+03:30", "utc": "1937-04-22T07:36:27Z", "ms": -1031761412541.8945 }, "end": { "local": "1937-04-22T11:54:27+03:30", "utc": "1937-04-22T08:24:27Z", "ms": -1031758532541.8945 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-23", "window": { "start": { "local": "1937-04-23T11:06:15+03:30", "utc": "1937-04-23T07:36:15Z", "ms": -1031675024522.5953 }, "end": { "local": "1937-04-23T11:54:15+03:30", "utc": "1937-04-23T08:24:15Z", "ms": -1031672144522.5953 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:15 on Thu 22 Apr to 14:47 on Fri 23 Apr.", "fact": "1937-04-22T09:44:40Z → 1937-04-23T11:17:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 22nd, 11:06–11:54 on the 23rd.", "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 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4812 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Mashhad, 1937: Friday 23 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": "1937-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-23", "confidence": "determinate" } ], "quote": "In Mashhad, Anaṅga Trayodaśī 1937 falls on Friday 23 April. Trayodaśī runs from 13:15 on Thu 22 Apr to 14:47 on Fri 23 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10387, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-04-23T14:47:23+03:30", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 }, "end": { "local": "1937-04-24T16:41:25+03:30", "utc": "1937-04-24T13:11:25Z", "ms": -1031568514677.3347 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-23T14:47:23+03:30", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 }, "end": { "local": "1937-04-24T16:41:25+03:30", "utc": "1937-04-24T13:11:25Z", "ms": -1031568514677.3347 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-23", "window": { "start": { "local": "1937-04-23T11:06:15+03:30", "utc": "1937-04-23T07:36:15Z", "ms": -1031675024522.5953 }, "end": { "local": "1937-04-23T11:54:15+03:30", "utc": "1937-04-23T08:24:15Z", "ms": -1031672144522.5953 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-24", "window": { "start": { "local": "1937-04-24T11:06:04+03:30", "utc": "1937-04-24T07:36:04Z", "ms": -1031588636059.4485 }, "end": { "local": "1937-04-24T11:54:04+03:30", "utc": "1937-04-24T08:24:04Z", "ms": -1031585756059.4485 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:47 on Fri 23 Apr to 16:41 on Sat 24 Apr.", "fact": "1937-04-23T11:17:23Z → 1937-04-24T13:11:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 23rd, 11:06–11:54 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10387 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Mashhad, 1937: Saturday 24 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": "1937-04-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-24", "confidence": "determinate" } ], "quote": "In Mashhad, Viṣṇudamanaka Caturdaśī 1937 falls on Saturday 24 April. Caturdaśī runs from 14:47 on Fri 23 Apr to 16:41 on Sat 24 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17241, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-04-24T16:41:25+03:30", "utc": "1937-04-24T13:11:25Z", "ms": -1031568514677.3347 }, "end": { "local": "1937-04-25T18:53:31+03:30", "utc": "1937-04-25T15:23:31Z", "ms": -1031474188945.5028 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-24T16:41:25+03:30", "utc": "1937-04-24T13:11:25Z", "ms": -1031568514677.3347 }, "end": { "local": "1937-04-25T18:53:31+03:30", "utc": "1937-04-25T15:23:31Z", "ms": -1031474188945.5028 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-24", "window": { "start": { "local": "1937-04-24T11:06:04+03:30", "utc": "1937-04-24T07:36:04Z", "ms": -1031588636059.4485 }, "end": { "local": "1937-04-24T11:54:04+03:30", "utc": "1937-04-24T08:24:04Z", "ms": -1031585756059.4485 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-25", "window": { "start": { "local": "1937-04-25T11:05:53+03:30", "utc": "1937-04-25T07:35:53Z", "ms": -1031502247137.8257 }, "end": { "local": "1937-04-25T11:53:53+03:30", "utc": "1937-04-25T08:23:53Z", "ms": -1031499367137.8257 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:41 on Sat 24 Apr to 18:54 on Sun 25 Apr.", "fact": "1937-04-24T13:11:25Z → 1937-04-25T15:23:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 24th, 11:06–11:54 on the 25th.", "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 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 17241 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Mashhad, 1937: Sunday 25 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": "1937-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-25", "confidence": "determinate" } ], "quote": "In Mashhad, Caitrī Pūrṇimā 1937 falls on Sunday 25 April. Pūrṇimā runs from 16:41 on Sat 24 Apr to 18:54 on Sun 25 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-04-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19872, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-04-29T02:30:29+03:30", "utc": "1937-04-28T23:00:29Z", "ms": -1031187571349.3253 }, "end": { "local": "1937-04-30T04:58:50+03:30", "utc": "1937-04-30T01:28:50Z", "ms": -1031092270254.5385 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-04-29T02:30:29+03:30", "utc": "1937-04-28T23:00:29Z", "ms": -1031187571349.3253 }, "end": { "local": "1937-04-30T04:58:50+03:30", "utc": "1937-04-30T01:28:50Z", "ms": -1031092270254.5385 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-04-28", "window": { "start": { "local": "1937-04-28T20:59:17+03:30", "utc": "1937-04-28T17:29:17Z", "ms": -1031207442962.8263 }, "end": { "local": "1937-04-28T20:59:17+03:30", "utc": "1937-04-28T17:29:17Z", "ms": -1031207442962.8263 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-04-29", "window": { "start": { "local": "1937-04-29T21:48:32+03:30", "utc": "1937-04-29T18:18:32Z", "ms": -1031118088182.1283 }, "end": { "local": "1937-04-29T21:48:32+03:30", "utc": "1937-04-29T18:18:32Z", "ms": -1031118088182.1283 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:30 on Thu 29 Apr to 04:59 on Fri 30 Apr.", "fact": "1937-04-28T23:00:29Z → 1937-04-30T01:28:50Z" }, { "step": "kaala", "text": "Moonrise is at 20:59 on the 28th and 21:49 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19872 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Thursday 29 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-29", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Thursday 29 April. Caturthī runs from 02:30 on Thu 29 Apr to 04:59 on Fri 30 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-04-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-05-07", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5744, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-05-06T08:15:09+03:30", "utc": "1937-05-06T04:45:09Z", "ms": -1030562091225.5918 }, "end": { "local": "1937-05-07T06:08:55+03:30", "utc": "1937-05-07T02:38:55Z", "ms": -1030483264864.3873 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-06T08:15:09+03:30", "utc": "1937-05-06T04:45:09Z", "ms": -1030562091225.5918 }, "end": { "local": "1937-05-07T06:08:55+03:30", "utc": "1937-05-07T02:38:55Z", "ms": -1030483264864.3873 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-05-06", "window": { "start": { "local": "1937-05-06T04:34:11+03:30", "utc": "1937-05-06T01:04:11Z", "ms": -1030575348646.7883 }, "end": { "local": "1937-05-06T04:34:11+03:30", "utc": "1937-05-06T01:04:11Z", "ms": -1030575348646.7883 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-05-07", "window": { "start": { "local": "1937-05-07T04:33:11+03:30", "utc": "1937-05-07T01:03:11Z", "ms": -1030489009142.112 }, "end": { "local": "1937-05-07T04:33:11+03:30", "utc": "1937-05-07T01:03:11Z", "ms": -1030489009142.112 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:15 on Thu 6 May to 06:09 on Fri 7 May.", "fact": "1937-05-06T04:45:09Z → 1937-05-07T02:38:55Z" }, { "step": "kaala", "text": "Sunrise is at 04:34 on the 6th and 04:33 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5744 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Mashhad, 1937: Friday 7 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": "1937-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-07", "confidence": "determinate" } ], "quote": "In Mashhad, Varūthinī Ekādaśī 1937 falls on Friday 7 May. Ekādaśī runs from 08:15 on Thu 6 May to 06:09 on Fri 7 May and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-05-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-05-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15836, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-05-08T03:24:09+03:30", "utc": "1937-05-07T23:54:09Z", "ms": -1030406751293.1827 }, "end": { "local": "1937-05-09T00:09:12+03:30", "utc": "1937-05-08T20:39:12Z", "ms": -1030332048121.8184 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-08T03:24:09+03:30", "utc": "1937-05-07T23:54:09Z", "ms": -1030406751293.1827 }, "end": { "local": "1937-05-09T00:09:12+03:30", "utc": "1937-05-08T20:39:12Z", "ms": -1030332048121.8184 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-05-07", "window": { "start": { "local": "1937-05-07T18:23:29+03:30", "utc": "1937-05-07T14:53:29Z", "ms": -1030439190615.5076 }, "end": { "local": "1937-05-07T19:44:39+03:30", "utc": "1937-05-07T16:14:39Z", "ms": -1030434320981.6882 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1937-05-08", "window": { "start": { "local": "1937-05-08T18:24:20+03:30", "utc": "1937-05-08T14:54:20Z", "ms": -1030352739619.9198 }, "end": { "local": "1937-05-08T19:45:15+03:30", "utc": "1937-05-08T16:15:15Z", "ms": -1030347884508.3414 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:24 on Sat 8 May to 00:09 on Sun 9 May.", "fact": "1937-05-07T23:54:09Z → 1937-05-08T20:39:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:23–19:45 on the 7th, 18:24–19:45 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 81 minutes on the 7th and 81 of 81 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15836 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Saturday 8 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": "1937-05-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-08", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Saturday 8 May. Trayodaśī runs from 03:24 on Sat 8 May to 00:09 on Sun 9 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-05-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-05-08", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-08", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1045, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-05-09T00:09:12+03:30", "utc": "1937-05-08T20:39:12Z", "ms": -1030332048121.8184 }, "end": { "local": "1937-05-09T20:33:37+03:30", "utc": "1937-05-09T17:03:37Z", "ms": -1030258583103.2507 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-09T00:09:12+03:30", "utc": "1937-05-08T20:39:12Z", "ms": -1030332048121.8184 }, "end": { "local": "1937-05-09T20:33:37+03:30", "utc": "1937-05-09T17:03:37Z", "ms": -1030258583103.2507 } }, "kaala": "nishita", "days": [ { "local_date": "1937-05-08", "window": { "start": { "local": "1937-05-08T23:03:47+03:30", "utc": "1937-05-08T19:33:47Z", "ms": -1030335972951.5007 }, "end": { "local": "1937-05-08T23:51:47+03:30", "utc": "1937-05-08T20:21:47Z", "ms": -1030333092951.5007 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-05-09", "window": { "start": { "local": "1937-05-09T23:03:44+03:30", "utc": "1937-05-09T19:33:44Z", "ms": -1030249575828.8147 }, "end": { "local": "1937-05-09T23:51:44+03:30", "utc": "1937-05-09T20:21:44Z", "ms": -1030246695828.8147 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:09 on Sun 9 May to 20:34 on Sun 9 May.", "fact": "1937-05-08T20:39:12Z → 1937-05-09T17:03:37Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:04–23:52 on the 8th, 23:04–23:52 on the 9th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 1045 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Saturday 8 May.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-05-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-08", "confidence": "boundary" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Saturday 8 May. Caturdaśī runs from 00:09 on Sun 9 May to 20:34 on Sun 9 May, and reaches niśītha on neither day.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-05-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32608, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-05-12T09:24:14+03:30", "utc": "1937-05-12T05:54:14Z", "ms": -1030039545610.8109 }, "end": { "local": "1937-05-13T06:06:23+03:30", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-12T09:24:14+03:30", "utc": "1937-05-12T05:54:14Z", "ms": -1030039545610.8109 }, "end": { "local": "1937-05-13T06:06:23+03:30", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-05-12", "window": { "start": { "local": "1937-05-12T18:27:43+03:30", "utc": "1937-05-12T14:57:43Z", "ms": -1030006937416.6975 }, "end": { "local": "1937-05-12T19:47:42+03:30", "utc": "1937-05-12T16:17:42Z", "ms": -1030002138369.39 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "1937-05-13", "window": { "start": { "local": "1937-05-13T18:28:33+03:30", "utc": "1937-05-13T14:58:33Z", "ms": -1029920487458.1925 }, "end": { "local": "1937-05-13T19:48:18+03:30", "utc": "1937-05-13T16:18:18Z", "ms": -1029915701888.1738 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 09:24 on Wed 12 May to 06:06 on Thu 13 May.", "fact": "1937-05-12T05:54:14Z → 1937-05-13T02:36:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–19:48 on the 12th, 18:29–19:48 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 80 of 80 minutes on the 12th and 0 of 80 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32608 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Mashhad, 1937: Wednesday 12 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-05-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-12", "confidence": "determinate" } ], "quote": "In Mashhad, Paraśurāma Jayantī 1937 falls on Wednesday 12 May. Tṛtīyā runs from 09:24 on Wed 12 May to 06:06 on Thu 13 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 962, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-05-12T09:24:14+03:30", "utc": "1937-05-12T05:54:14Z", "ms": -1030039545610.8109 }, "end": { "local": "1937-05-13T06:06:23+03:30", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-12T09:24:14+03:30", "utc": "1937-05-12T05:54:14Z", "ms": -1030039545610.8109 }, "end": { "local": "1937-05-13T06:06:23+03:30", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 } }, "kaala": "purvahna", "days": [ { "local_date": "1937-05-12", "window": { "start": { "local": "1937-05-12T04:28:28+03:30", "utc": "1937-05-12T00:58:28Z", "ms": -1030057292041.8206 }, "end": { "local": "1937-05-12T09:08:13+03:30", "utc": "1937-05-12T05:38:13Z", "ms": -1030040507166.7795 } }, "covered_min": 0, "window_min": 280, "qualifies": false }, { "local_date": "1937-05-13", "window": { "start": { "local": "1937-05-13T04:27:35+03:30", "utc": "1937-05-13T00:57:35Z", "ms": -1029970944561.8914 }, "end": { "local": "1937-05-13T09:07:54+03:30", "utc": "1937-05-13T05:37:54Z", "ms": -1029954125527.3251 } }, "covered_min": 99, "window_min": 280, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 09:24 on Wed 12 May to 06:06 on Thu 13 May.", "fact": "1937-05-12T05:54:14Z → 1937-05-13T02:36:23Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 04:28–09:08 on the 12th, 04:28–09:08 on the 13th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 0 of 280 minutes on the 12th and 99 of 280 on the 13th.", "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 962 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Mashhad, 1937: Thursday 13 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-13", "confidence": "determinate" } ], "quote": "In Mashhad, Akṣaya Tṛtīyā 1937 falls on Thursday 13 May. Tṛtīyā runs from 09:24 on Wed 12 May to 06:06 on Thu 13 May and covers 99 of 280 minutes of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-05-13", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17861, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-05-13T06:06:23+03:30", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 }, "end": { "local": "1937-05-14T03:15:54+03:30", "utc": "1937-05-13T23:45:54Z", "ms": -1029888846421.4944 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-13T06:06:23+03:30", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 }, "end": { "local": "1937-05-14T03:15:54+03:30", "utc": "1937-05-13T23:45:54Z", "ms": -1029888846421.4944 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-13", "window": { "start": { "local": "1937-05-13T11:04:04+03:30", "utc": "1937-05-13T07:34:04Z", "ms": -1029947156010.042 }, "end": { "local": "1937-05-13T11:52:04+03:30", "utc": "1937-05-13T08:22:04Z", "ms": -1029944276010.042 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-14", "window": { "start": { "local": "1937-05-14T11:04:03+03:30", "utc": "1937-05-14T07:34:03Z", "ms": -1029860756740.8518 }, "end": { "local": "1937-05-14T11:52:03+03:30", "utc": "1937-05-14T08:22:03Z", "ms": -1029857876740.8518 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:06 on Thu 13 May to 03:16 on Fri 14 May.", "fact": "1937-05-13T02:36:23Z → 1937-05-13T23:45:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 13th, 11:04–11:52 on the 14th.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17861 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Thursday 13 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": "1937-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-13", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Thursday 13 May. Caturthī runs from 06:06 on Thu 13 May to 03:16 on Fri 14 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-05-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28090, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-05-14T03:15:54+03:30", "utc": "1937-05-13T23:45:54Z", "ms": -1029888846421.4944 }, "end": { "local": "1937-05-15T00:59:49+03:30", "utc": "1937-05-14T21:29:49Z", "ms": -1029810611393.0624 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-14T03:15:54+03:30", "utc": "1937-05-13T23:45:54Z", "ms": -1029888846421.4944 }, "end": { "local": "1937-05-15T00:59:49+03:30", "utc": "1937-05-14T21:29:49Z", "ms": -1029810611393.0624 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-14", "window": { "start": { "local": "1937-05-14T11:04:03+03:30", "utc": "1937-05-14T07:34:03Z", "ms": -1029860756740.8518 }, "end": { "local": "1937-05-14T11:52:03+03:30", "utc": "1937-05-14T08:22:03Z", "ms": -1029857876740.8518 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-15", "window": { "start": { "local": "1937-05-15T11:04:03+03:30", "utc": "1937-05-15T07:34:03Z", "ms": -1029774356926.8105 }, "end": { "local": "1937-05-15T11:52:03+03:30", "utc": "1937-05-15T08:22:03Z", "ms": -1029771476926.8105 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:16 on Fri 14 May to 01:00 on Sat 15 May.", "fact": "1937-05-13T23:45:54Z → 1937-05-14T21:29:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 14th, 11:04–11:52 on the 15th.", "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 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28090 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Mashhad, 1937: Friday 14 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-14", "confidence": "determinate" } ], "quote": "In Mashhad, Śaṅkara Jayantī 1937 falls on Friday 14 May. Pañcamī runs from 03:16 on Fri 14 May to 01:00 on Sat 15 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38263, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-05-15T23:23:24+03:30", "utc": "1937-05-15T19:53:24Z", "ms": -1029729995510.8934 }, "end": { "local": "1937-05-16T22:29:46+03:30", "utc": "1937-05-16T18:59:46Z", "ms": -1029646813905.214 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-15T23:23:24+03:30", "utc": "1937-05-15T19:53:24Z", "ms": -1029729995510.8934 }, "end": { "local": "1937-05-16T22:29:46+03:30", "utc": "1937-05-16T18:59:46Z", "ms": -1029646813905.214 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-15", "window": { "start": { "local": "1937-05-15T11:04:03+03:30", "utc": "1937-05-15T07:34:03Z", "ms": -1029774356926.8105 }, "end": { "local": "1937-05-15T11:52:03+03:30", "utc": "1937-05-15T08:22:03Z", "ms": -1029771476926.8105 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-05-16", "window": { "start": { "local": "1937-05-16T11:04:03+03:30", "utc": "1937-05-16T07:34:03Z", "ms": -1029687956572.367 }, "end": { "local": "1937-05-16T11:52:03+03:30", "utc": "1937-05-16T08:22:03Z", "ms": -1029685076572.367 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 23:23 on Sat 15 May to 22:30 on Sun 16 May.", "fact": "1937-05-15T19:53:24Z → 1937-05-16T18:59:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 15th, 11:04–11:52 on the 16th.", "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 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 38263 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Mashhad, 1937: Sunday 16 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-16", "confidence": "determinate" } ], "quote": "In Mashhad, Gaṅgotpatti (Ganga Saptami) 1937 falls on Sunday 16 May. Saptamī runs from 23:23 on Sat 15 May to 22:30 on Sun 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-05-20", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9772, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-05-19T23:58:59+03:30", "utc": "1937-05-19T20:28:59Z", "ms": -1029382260701.3312 }, "end": { "local": "1937-05-21T01:38:36+03:30", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-19T23:58:59+03:30", "utc": "1937-05-19T20:28:59Z", "ms": -1029382260701.3312 }, "end": { "local": "1937-05-21T01:38:36+03:30", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-05-20", "window": { "start": { "local": "1937-05-20T04:22:08+03:30", "utc": "1937-05-20T00:52:08Z", "ms": -1029366471868.8782 }, "end": { "local": "1937-05-20T04:22:08+03:30", "utc": "1937-05-20T00:52:08Z", "ms": -1029366471868.8782 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-05-21", "window": { "start": { "local": "1937-05-21T04:21:27+03:30", "utc": "1937-05-21T00:51:27Z", "ms": -1029280112613.4556 }, "end": { "local": "1937-05-21T04:21:27+03:30", "utc": "1937-05-21T00:51:27Z", "ms": -1029280112613.4556 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:59 on Wed 19 May to 01:39 on Fri 21 May.", "fact": "1937-05-19T20:28:59Z → 1937-05-20T22:08:36Z" }, { "step": "kaala", "text": "Sunrise is at 04:22 on the 20th and 04:21 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9772 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Mashhad, 1937: Thursday 20 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": "1937-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-20", "confidence": "determinate" } ], "quote": "In Mashhad, Mohinī Ekādaśī 1937 falls on Thursday 20 May. Ekādaśī runs from 23:59 on Wed 19 May to 01:39 on Fri 21 May and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-05-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26508, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-05-21T01:38:36+03:30", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "end": { "local": "1937-05-22T03:42:29+03:30", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-21T01:38:36+03:30", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "end": { "local": "1937-05-22T03:42:29+03:30", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-21", "window": { "start": { "local": "1937-05-21T11:04:13+03:30", "utc": "1937-05-21T07:34:13Z", "ms": -1029255946829.3579 }, "end": { "local": "1937-05-21T11:52:13+03:30", "utc": "1937-05-21T08:22:13Z", "ms": -1029253066829.3579 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-22", "window": { "start": { "local": "1937-05-22T11:04:17+03:30", "utc": "1937-05-22T07:34:17Z", "ms": -1029169543314.9348 }, "end": { "local": "1937-05-22T11:52:17+03:30", "utc": "1937-05-22T08:22:17Z", "ms": -1029166663314.9348 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 01:39 on Fri 21 May to 03:42 on Sat 22 May.", "fact": "1937-05-20T22:08:36Z → 1937-05-22T00:12:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 21st, 11:04–11:52 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26508 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Mashhad, 1937: Friday 21 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": "1937-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-21", "confidence": "determinate" } ], "quote": "In Mashhad, Paraśurāma Dvādaśī 1937 falls on Friday 21 May. Dvādaśī runs from 01:39 on Fri 21 May to 03:42 on Sat 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26508, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-05-21T01:38:36+03:30", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "end": { "local": "1937-05-22T03:42:29+03:30", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-21T01:38:36+03:30", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "end": { "local": "1937-05-22T03:42:29+03:30", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-21", "window": { "start": { "local": "1937-05-21T11:04:13+03:30", "utc": "1937-05-21T07:34:13Z", "ms": -1029255946829.3579 }, "end": { "local": "1937-05-21T11:52:13+03:30", "utc": "1937-05-21T08:22:13Z", "ms": -1029253066829.3579 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-22", "window": { "start": { "local": "1937-05-22T11:04:17+03:30", "utc": "1937-05-22T07:34:17Z", "ms": -1029169543314.9348 }, "end": { "local": "1937-05-22T11:52:17+03:30", "utc": "1937-05-22T08:22:17Z", "ms": -1029166663314.9348 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 01:39 on Fri 21 May to 03:42 on Sat 22 May.", "fact": "1937-05-20T22:08:36Z → 1937-05-22T00:12:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 21st, 11:04–11:52 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26508 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Mashhad, 1937: Friday 21 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": "1937-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-21", "confidence": "determinate" } ], "quote": "In Mashhad, Rukmiṇī Dvādaśī 1937 falls on Friday 21 May. Dvādaśī runs from 01:39 on Fri 21 May to 03:42 on Sat 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/pradosha-vrata?on=1937-05-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28164, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-05-22T03:42:29+03:30", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 }, "end": { "local": "1937-05-23T06:03:21+03:30", "utc": "1937-05-23T02:33:21Z", "ms": -1029101198791.2909 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-22T03:42:29+03:30", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 }, "end": { "local": "1937-05-23T06:03:21+03:30", "utc": "1937-05-23T02:33:21Z", "ms": -1029101198791.2909 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-05-21", "window": { "start": { "local": "1937-05-21T18:34:59+03:30", "utc": "1937-05-21T15:04:59Z", "ms": -1029228901045.2603 }, "end": { "local": "1937-05-21T19:53:06+03:30", "utc": "1937-05-21T16:23:06Z", "ms": -1029224214478.296 } }, "covered_min": 0, "window_min": 78, "qualifies": false }, { "local_date": "1937-05-22", "window": { "start": { "local": "1937-05-22T18:35:45+03:30", "utc": "1937-05-22T15:05:45Z", "ms": -1029142454836.8412 }, "end": { "local": "1937-05-22T19:53:41+03:30", "utc": "1937-05-22T16:23:41Z", "ms": -1029137779443.6871 } }, "covered_min": 78, "window_min": 78, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:42 on Sat 22 May to 06:03 on Sun 23 May.", "fact": "1937-05-22T00:12:29Z → 1937-05-23T02:33:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:35–19:53 on the 21st, 18:36–19:54 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 78 minutes on the 21st and 78 of 78 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28164 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Saturday 22 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": "1937-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-22", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Saturday 22 May. Trayodaśī runs from 03:42 on Sat 22 May to 06:03 on Sun 23 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-05-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36195, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-05-23T06:03:21+03:30", "utc": "1937-05-23T02:33:21Z", "ms": -1029101198791.2909 }, "end": { "local": "1937-05-24T08:34:01+03:30", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-23T06:03:21+03:30", "utc": "1937-05-23T02:33:21Z", "ms": -1029101198791.2909 }, "end": { "local": "1937-05-24T08:34:01+03:30", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-05-23", "window": { "start": { "local": "1937-05-23T18:36:31+03:30", "utc": "1937-05-23T15:06:31Z", "ms": -1029056009191.181 }, "end": { "local": "1937-05-23T19:54:15+03:30", "utc": "1937-05-23T16:24:15Z", "ms": -1029051344683.0405 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1937-05-24", "window": { "start": { "local": "1937-05-24T18:37:16+03:30", "utc": "1937-05-24T15:07:16Z", "ms": -1028969564138.7067 }, "end": { "local": "1937-05-24T19:54:50+03:30", "utc": "1937-05-24T16:24:50Z", "ms": -1028964910220.3079 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:03 on Sun 23 May to 08:34 on Mon 24 May.", "fact": "1937-05-23T02:33:21Z → 1937-05-24T05:04:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:37–19:54 on the 23rd, 18:37–19:55 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 78 of 78 minutes on the 23rd and 0 of 78 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36195 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Mashhad, 1937: Sunday 23 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": "1937-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-23", "confidence": "determinate" } ], "quote": "In Mashhad, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1937 falls on Sunday 23 May. Caturdaśī runs from 06:03 on Sun 23 May to 08:34 on Mon 24 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-24", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 185, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-05-24T08:34:01+03:30", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "end": { "local": "1937-05-25T11:07:35+03:30", "utc": "1937-05-25T07:37:35Z", "ms": -1028910145122.765 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-24T08:34:01+03:30", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "end": { "local": "1937-05-25T11:07:35+03:30", "utc": "1937-05-25T07:37:35Z", "ms": -1028910145122.765 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-24", "window": { "start": { "local": "1937-05-24T11:04:25+03:30", "utc": "1937-05-24T07:34:25Z", "ms": -1028996734759.4172 }, "end": { "local": "1937-05-24T11:52:25+03:30", "utc": "1937-05-24T08:22:25Z", "ms": -1028993854759.4172 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-25", "window": { "start": { "local": "1937-05-25T11:04:30+03:30", "utc": "1937-05-25T07:34:30Z", "ms": -1028910329730.5773 }, "end": { "local": "1937-05-25T11:52:30+03:30", "utc": "1937-05-25T08:22:30Z", "ms": -1028907449730.5773 } }, "covered_min": 3, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:34 on Mon 24 May to 11:08 on Tue 25 May.", "fact": "1937-05-24T05:04:01Z → 1937-05-25T07:37:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 24th, 11:05–11:53 on the 25th.", "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 24th and 3 of 48 on the 25th.", "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 185 s < 300 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Mashhad, 1937: Monday 24 May.", "fact": "confidence: boundary (margin, 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": "1937-05-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-24", "confidence": "boundary" } ], "quote": "In Mashhad, Buddha Pūrṇimā 1937 falls on Monday 24 May. Pūrṇimā runs from 08:34 on Mon 24 May to 11:08 on Tue 25 May and covers all of madhyāhna that midday. It also reaches the next midday for 3 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 3 min 05 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-25", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 185, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-05-24T08:34:01+03:30", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "end": { "local": "1937-05-25T11:07:35+03:30", "utc": "1937-05-25T07:37:35Z", "ms": -1028910145122.765 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-24T08:34:01+03:30", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "end": { "local": "1937-05-25T11:07:35+03:30", "utc": "1937-05-25T07:37:35Z", "ms": -1028910145122.765 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-24", "window": { "start": { "local": "1937-05-24T11:04:25+03:30", "utc": "1937-05-24T07:34:25Z", "ms": -1028996734759.4172 }, "end": { "local": "1937-05-24T11:52:25+03:30", "utc": "1937-05-24T08:22:25Z", "ms": -1028993854759.4172 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-25", "window": { "start": { "local": "1937-05-25T11:04:30+03:30", "utc": "1937-05-25T07:34:30Z", "ms": -1028910329730.5773 }, "end": { "local": "1937-05-25T11:52:30+03:30", "utc": "1937-05-25T08:22:30Z", "ms": -1028907449730.5773 } }, "covered_min": 3, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:34 on Mon 24 May to 11:08 on Tue 25 May.", "fact": "1937-05-24T05:04:01Z → 1937-05-25T07:37:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 24th, 11:05–11:53 on the 25th.", "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 24th and 3 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 185 s < 300 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Mashhad, 1937: Tuesday 25 May.", "fact": "confidence: boundary (margin)" } ], "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": "1937-05-25", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-25", "confidence": "determinate" } ], "quote": "In Mashhad, Sampat Gaurī Vrata 1937 falls on Tuesday 25 May. Pūrṇimā runs from 08:34 on Mon 24 May to 11:08 on Tue 25 May and covers 3 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken. It is 3 min 05 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-05-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8075, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-05-28T17:59:16+03:30", "utc": "1937-05-28T14:29:16Z", "ms": -1028626244158.3646 }, "end": { "local": "1937-05-29T19:37:54+03:30", "utc": "1937-05-29T16:07:54Z", "ms": -1028533926364.639 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-28T17:59:16+03:30", "utc": "1937-05-28T14:29:16Z", "ms": -1028626244158.3646 }, "end": { "local": "1937-05-29T19:37:54+03:30", "utc": "1937-05-29T16:07:54Z", "ms": -1028533926364.639 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-05-28", "window": { "start": { "local": "1937-05-28T21:14:16+03:30", "utc": "1937-05-28T17:44:16Z", "ms": -1028614544225.7983 }, "end": { "local": "1937-05-28T21:14:16+03:30", "utc": "1937-05-28T17:44:16Z", "ms": -1028614544225.7983 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-05-29", "window": { "start": { "local": "1937-05-29T21:52:29+03:30", "utc": "1937-05-29T18:22:29Z", "ms": -1028525851478.3383 }, "end": { "local": "1937-05-29T21:52:29+03:30", "utc": "1937-05-29T18:22:29Z", "ms": -1028525851478.3383 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:59 on Fri 28 May to 19:38 on Sat 29 May.", "fact": "1937-05-28T14:29:16Z → 1937-05-29T16:07:54Z" }, { "step": "kaala", "text": "Moonrise is at 21:14 on the 28th and 21:52 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 28th and is not on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8075 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Friday 28 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": "1937-05-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-28", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Friday 28 May. Caturthī runs from 17:59 on Fri 28 May to 19:38 on Sat 29 May and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-05-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-06-05", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35475, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-06-04T16:47:03+03:30", "utc": "1937-06-04T13:17:03Z", "ms": -1028025776898.5808 }, "end": { "local": "1937-06-05T14:05:49+03:30", "utc": "1937-06-05T10:35:49Z", "ms": -1027949051082.8262 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-04T16:47:03+03:30", "utc": "1937-06-04T13:17:03Z", "ms": -1028025776898.5808 }, "end": { "local": "1937-06-05T14:05:49+03:30", "utc": "1937-06-05T10:35:49Z", "ms": -1027949051082.8262 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-06-04", "window": { "start": { "local": "1937-06-04T04:14:49+03:30", "utc": "1937-06-04T00:44:49Z", "ms": -1028070910944.8528 }, "end": { "local": "1937-06-04T04:14:49+03:30", "utc": "1937-06-04T00:44:49Z", "ms": -1028070910944.8528 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-06-05", "window": { "start": { "local": "1937-06-05T04:14:33+03:30", "utc": "1937-06-05T00:44:33Z", "ms": -1027984526572.2155 }, "end": { "local": "1937-06-05T04:14:33+03:30", "utc": "1937-06-05T00:44:33Z", "ms": -1027984526572.2155 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:47 on Fri 4 Jun to 14:06 on Sat 5 Jun.", "fact": "1937-06-04T13:17:03Z → 1937-06-05T10:35:49Z" }, { "step": "kaala", "text": "Sunrise is at 04:15 on the 4th and 04:15 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 4th and is on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35475 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Mashhad, 1937: Saturday 5 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": "1937-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-05", "confidence": "determinate" } ], "quote": "In Mashhad, Aparā Ekādaśī 1937 falls on Saturday 5 June. Ekādaśī runs from 16:47 on Fri 4 Jun to 14:06 on Sat 5 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-06-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-06-06", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28097, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-06-06T10:57:35+03:30", "utc": "1937-06-06T07:27:35Z", "ms": -1027873944725.8585 }, "end": { "local": "1937-06-07T07:30:10+03:30", "utc": "1937-06-07T04:00:10Z", "ms": -1027799990350.7848 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-06T10:57:35+03:30", "utc": "1937-06-06T07:27:35Z", "ms": -1027873944725.8585 }, "end": { "local": "1937-06-07T07:30:10+03:30", "utc": "1937-06-07T04:00:10Z", "ms": -1027799990350.7848 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-06-06", "window": { "start": { "local": "1937-06-06T18:45:53+03:30", "utc": "1937-06-06T15:15:53Z", "ms": -1027845847457.9966 }, "end": { "local": "1937-06-06T20:01:39+03:30", "utc": "1937-06-06T16:31:39Z", "ms": -1027841301476.5671 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1937-06-07", "window": { "start": { "local": "1937-06-07T18:46:26+03:30", "utc": "1937-06-07T15:16:26Z", "ms": -1027759414273.1403 }, "end": { "local": "1937-06-07T20:02:06+03:30", "utc": "1937-06-07T16:32:06Z", "ms": -1027754874104.2733 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:58 on Sun 6 Jun to 07:30 on Mon 7 Jun.", "fact": "1937-06-06T07:27:35Z → 1937-06-07T04:00:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:02 on the 6th, 18:46–20:02 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 76 of 76 minutes on the 6th and 0 of 76 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 28097 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Sunday 6 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": "1937-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-06", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Sunday 6 June. Trayodaśī runs from 10:58 on Sun 6 Jun to 07:30 on Mon 7 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-06-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-06-07", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14281, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-06-07T07:30:10+03:30", "utc": "1937-06-07T04:00:10Z", "ms": -1027799990350.7848 }, "end": { "local": "1937-06-08T03:52:12+03:30", "utc": "1937-06-08T00:22:12Z", "ms": -1027726667805.5331 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-07T07:30:10+03:30", "utc": "1937-06-07T04:00:10Z", "ms": -1027799990350.7848 }, "end": { "local": "1937-06-08T03:52:12+03:30", "utc": "1937-06-08T00:22:12Z", "ms": -1027726667805.5331 } }, "kaala": "nishita", "days": [ { "local_date": "1937-06-06", "window": { "start": { "local": "1937-06-06T23:06:00+03:30", "utc": "1937-06-06T19:36:00Z", "ms": -1027830240027.636 }, "end": { "local": "1937-06-06T23:54:00+03:30", "utc": "1937-06-06T20:24:00Z", "ms": -1027827360027.636 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-07", "window": { "start": { "local": "1937-06-07T23:06:11+03:30", "utc": "1937-06-07T19:36:11Z", "ms": -1027743828639.8893 }, "end": { "local": "1937-06-07T23:54:11+03:30", "utc": "1937-06-07T20:24:11Z", "ms": -1027740948639.8893 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:30 on Mon 7 Jun to 03:52 on Tue 8 Jun.", "fact": "1937-06-07T04:00:10Z → 1937-06-08T00:22:12Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:06–23:54 on the 6th, 23:06–23:54 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14281 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Monday 7 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": "1937-06-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-07", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Monday 7 June. Caturdaśī runs from 07:30 on Mon 7 Jun to 03:52 on Tue 8 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-06-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9962, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-06-10T17:28:10+03:30", "utc": "1937-06-10T13:58:10Z", "ms": -1027504910390.4188 }, "end": { "local": "1937-06-11T14:41:04+03:30", "utc": "1937-06-11T11:11:04Z", "ms": -1027428536495.6067 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-10T17:28:10+03:30", "utc": "1937-06-10T13:58:10Z", "ms": -1027504910390.4188 }, "end": { "local": "1937-06-11T14:41:04+03:30", "utc": "1937-06-11T11:11:04Z", "ms": -1027428536495.6067 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-10", "window": { "start": { "local": "1937-06-10T11:06:50+03:30", "utc": "1937-06-10T07:36:50Z", "ms": -1027527790171.1865 }, "end": { "local": "1937-06-10T11:54:50+03:30", "utc": "1937-06-10T08:24:50Z", "ms": -1027524910171.1865 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-11", "window": { "start": { "local": "1937-06-11T11:07:01+03:30", "utc": "1937-06-11T07:37:01Z", "ms": -1027441378604.8103 }, "end": { "local": "1937-06-11T11:55:01+03:30", "utc": "1937-06-11T08:25:01Z", "ms": -1027438498604.8103 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 17:28 on Thu 10 Jun to 14:41 on Fri 11 Jun.", "fact": "1937-06-10T13:58:10Z → 1937-06-11T11:11:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 10th, 11:07–11:55 on the 11th.", "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 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9962 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Mashhad, 1937: Friday 11 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-06-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-11", "confidence": "determinate" } ], "quote": "In Mashhad, Rambhā Tṛtīyā 1937 falls on Friday 11 June. Tṛtīyā runs from 17:28 on Thu 10 Jun to 14:41 on Fri 11 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-06-12", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2003, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-06-11T14:41:04+03:30", "utc": "1937-06-11T11:11:04Z", "ms": -1027428536495.6067 }, "end": { "local": "1937-06-12T12:28:36+03:30", "utc": "1937-06-12T08:58:36Z", "ms": -1027350084170.8761 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-11T14:41:04+03:30", "utc": "1937-06-11T11:11:04Z", "ms": -1027428536495.6067 }, "end": { "local": "1937-06-12T12:28:36+03:30", "utc": "1937-06-12T08:58:36Z", "ms": -1027350084170.8761 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-11", "window": { "start": { "local": "1937-06-11T11:07:01+03:30", "utc": "1937-06-11T07:37:01Z", "ms": -1027441378604.8103 }, "end": { "local": "1937-06-11T11:55:01+03:30", "utc": "1937-06-11T08:25:01Z", "ms": -1027438498604.8103 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-12", "window": { "start": { "local": "1937-06-12T11:07:13+03:30", "utc": "1937-06-12T07:37:13Z", "ms": -1027354966843.0474 }, "end": { "local": "1937-06-12T11:55:13+03:30", "utc": "1937-06-12T08:25:13Z", "ms": -1027352086843.0474 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:41 on Fri 11 Jun to 12:29 on Sat 12 Jun.", "fact": "1937-06-11T11:11:04Z → 1937-06-12T08:58:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 11th, 11:07–11:55 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2003 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Saturday 12 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": "1937-06-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-12", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Saturday 12 June. Caturthī runs from 14:41 on Fri 11 Jun to 12:29 on Sat 12 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-06-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 598, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-06-13T10:57:27+03:30", "utc": "1937-06-13T07:27:27Z", "ms": -1027269153135.2253 }, "end": { "local": "1937-06-14T10:12:08+03:30", "utc": "1937-06-14T06:42:08Z", "ms": -1027185472230.5414 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-13T10:57:27+03:30", "utc": "1937-06-13T07:27:27Z", "ms": -1027269153135.2253 }, "end": { "local": "1937-06-14T10:12:08+03:30", "utc": "1937-06-14T06:42:08Z", "ms": -1027185472230.5414 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-13", "window": { "start": { "local": "1937-06-13T11:07:25+03:30", "utc": "1937-06-13T07:37:25Z", "ms": -1027268554910.8445 }, "end": { "local": "1937-06-13T11:55:25+03:30", "utc": "1937-06-13T08:25:25Z", "ms": -1027265674910.8445 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-06-14", "window": { "start": { "local": "1937-06-14T11:07:37+03:30", "utc": "1937-06-14T07:37:37Z", "ms": -1027182142832.1082 }, "end": { "local": "1937-06-14T11:55:37+03:30", "utc": "1937-06-14T08:25:37Z", "ms": -1027179262832.1082 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:57 on Sun 13 Jun to 10:12 on Mon 14 Jun.", "fact": "1937-06-13T07:27:27Z → 1937-06-14T06:42:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 13th, 11:08–11:56 on the 14th.", "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 13th and 0 of 48 on the 14th.", "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 598 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Mashhad, 1937: Sunday 13 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-14", "confidence": "determinate" } ], "quote": "In Mashhad, Araṇya Gaurī Vrata 1937 falls on Sunday 13 June. Ṣaṣṭhī runs from 10:57 on Sun 13 Jun to 10:12 on Mon 14 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 598, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-06-13T10:57:27+03:30", "utc": "1937-06-13T07:27:27Z", "ms": -1027269153135.2253 }, "end": { "local": "1937-06-14T10:12:08+03:30", "utc": "1937-06-14T06:42:08Z", "ms": -1027185472230.5414 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-13T10:57:27+03:30", "utc": "1937-06-13T07:27:27Z", "ms": -1027269153135.2253 }, "end": { "local": "1937-06-14T10:12:08+03:30", "utc": "1937-06-14T06:42:08Z", "ms": -1027185472230.5414 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-13", "window": { "start": { "local": "1937-06-13T11:07:25+03:30", "utc": "1937-06-13T07:37:25Z", "ms": -1027268554910.8445 }, "end": { "local": "1937-06-13T11:55:25+03:30", "utc": "1937-06-13T08:25:25Z", "ms": -1027265674910.8445 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-06-14", "window": { "start": { "local": "1937-06-14T11:07:37+03:30", "utc": "1937-06-14T07:37:37Z", "ms": -1027182142832.1082 }, "end": { "local": "1937-06-14T11:55:37+03:30", "utc": "1937-06-14T08:25:37Z", "ms": -1027179262832.1082 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:57 on Sun 13 Jun to 10:12 on Mon 14 Jun.", "fact": "1937-06-13T07:27:27Z → 1937-06-14T06:42:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 13th, 11:08–11:56 on the 14th.", "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 13th and 0 of 48 on the 14th.", "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 598 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Mashhad, 1937: Sunday 13 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-13", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1937 falls on Sunday 13 June. Ṣaṣṭhī runs from 10:57 on Sun 13 Jun to 10:12 on Mon 14 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-06-19", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37037, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-06-18T14:31:02+03:30", "utc": "1937-06-18T11:01:02Z", "ms": -1026824337825.3562 }, "end": { "local": "1937-06-19T16:53:09+03:30", "utc": "1937-06-19T13:23:09Z", "ms": -1026729410981.1083 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-18T14:31:02+03:30", "utc": "1937-06-18T11:01:02Z", "ms": -1026824337825.3562 }, "end": { "local": "1937-06-19T16:53:09+03:30", "utc": "1937-06-19T13:23:09Z", "ms": -1026729410981.1083 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-06-18", "window": { "start": { "local": "1937-06-18T04:13:46+03:30", "utc": "1937-06-18T00:43:46Z", "ms": -1026861374420.7493 }, "end": { "local": "1937-06-18T04:13:46+03:30", "utc": "1937-06-18T00:43:46Z", "ms": -1026861374420.7493 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-06-19", "window": { "start": { "local": "1937-06-19T04:13:53+03:30", "utc": "1937-06-19T00:43:53Z", "ms": -1026774966600.4088 }, "end": { "local": "1937-06-19T04:13:53+03:30", "utc": "1937-06-19T00:43:53Z", "ms": -1026774966600.4088 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:31 on Fri 18 Jun to 16:53 on Sat 19 Jun.", "fact": "1937-06-18T11:01:02Z → 1937-06-19T13:23:09Z" }, { "step": "kaala", "text": "Sunrise is at 04:14 on the 18th and 04:14 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 37037 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Mashhad, 1937: Saturday 19 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": "1937-06-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-19", "confidence": "determinate" } ], "quote": "In Mashhad, Nirjalā Ekādaśī 1937 falls on Saturday 19 June. Ekādaśī runs from 14:31 on Fri 18 Jun to 16:53 on Sat 19 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-06-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17790, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-06-19T16:53:09+03:30", "utc": "1937-06-19T13:23:09Z", "ms": -1026729410981.1083 }, "end": { "local": "1937-06-20T19:25:46+03:30", "utc": "1937-06-20T15:55:46Z", "ms": -1026633853696.3707 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-19T16:53:09+03:30", "utc": "1937-06-19T13:23:09Z", "ms": -1026729410981.1083 }, "end": { "local": "1937-06-20T19:25:46+03:30", "utc": "1937-06-20T15:55:46Z", "ms": -1026633853696.3707 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-19", "window": { "start": { "local": "1937-06-19T11:08:39+03:30", "utc": "1937-06-19T07:38:39Z", "ms": -1026750081026.6946 }, "end": { "local": "1937-06-19T11:56:39+03:30", "utc": "1937-06-19T08:26:39Z", "ms": -1026747201026.6946 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-20", "window": { "start": { "local": "1937-06-20T11:08:51+03:30", "utc": "1937-06-20T07:38:51Z", "ms": -1026663668534.1824 }, "end": { "local": "1937-06-20T11:56:51+03:30", "utc": "1937-06-20T08:26:51Z", "ms": -1026660788534.1824 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 16:53 on Sat 19 Jun to 19:26 on Sun 20 Jun.", "fact": "1937-06-19T13:23:09Z → 1937-06-20T15:55:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 19th, 11:09–11:57 on the 20th.", "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 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17790 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Mashhad, 1937: Sunday 20 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-20", "confidence": "determinate" } ], "quote": "In Mashhad, Śrī Rāma Dvādaśī 1937 falls on Sunday 20 June. Dvādaśī runs from 16:53 on Sat 19 Jun to 19:26 on Sun 20 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/pradosha-vrata?on=1937-06-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-21", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2046, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-06-20T19:25:46+03:30", "utc": "1937-06-20T15:55:46Z", "ms": -1026633853696.3707 }, "end": { "local": "1937-06-21T21:58:22+03:30", "utc": "1937-06-21T18:28:22Z", "ms": -1026538298203.3766 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-20T19:25:46+03:30", "utc": "1937-06-20T15:55:46Z", "ms": -1026633853696.3707 }, "end": { "local": "1937-06-21T21:58:22+03:30", "utc": "1937-06-21T18:28:22Z", "ms": -1026538298203.3766 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-06-20", "window": { "start": { "local": "1937-06-20T18:51:40+03:30", "utc": "1937-06-20T15:21:40Z", "ms": -1026635899853.2334 }, "end": { "local": "1937-06-20T20:06:41+03:30", "utc": "1937-06-20T16:36:41Z", "ms": -1026631399377.3232 } }, "covered_min": 41, "window_min": 75, "qualifies": true }, { "local_date": "1937-06-21", "window": { "start": { "local": "1937-06-21T18:51:54+03:30", "utc": "1937-06-21T15:21:54Z", "ms": -1026549485809.5667 }, "end": { "local": "1937-06-21T20:06:54+03:30", "utc": "1937-06-21T16:36:54Z", "ms": -1026544985545.1746 } }, "covered_min": 75, "window_min": 75, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:26 on Sun 20 Jun to 21:58 on Mon 21 Jun.", "fact": "1937-06-20T15:55:46Z → 1937-06-21T18:28:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:07 on the 20th, 18:52–20:07 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 41 of 75 minutes on the 20th and 75 of 75 on the 21st.", "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 2046 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Monday 21 June.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-06-21", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-21", "confidence": "boundary" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Monday 21 June. Trayodaśī runs from 19:26 on Sun 20 Jun to 21:58 on Mon 21 Jun and covers all of pradoṣa that evening. It also reaches the previous evening for 41 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/mashhad/festivals/1937/pradosha-vrata?on=1937-06-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15289, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-06-23T00:21:57+03:30", "utc": "1937-06-22T20:51:57Z", "ms": -1026443283406.9094 }, "end": { "local": "1937-06-24T02:29:30+03:30", "utc": "1937-06-23T22:59:30Z", "ms": -1026349229671.819 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-23T00:21:57+03:30", "utc": "1937-06-22T20:51:57Z", "ms": -1026443283406.9094 }, "end": { "local": "1937-06-24T02:29:30+03:30", "utc": "1937-06-23T22:59:30Z", "ms": -1026349229671.819 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-06-22", "window": { "start": { "local": "1937-06-22T18:52:07+03:30", "utc": "1937-06-22T15:22:07Z", "ms": -1026463073342.955 }, "end": { "local": "1937-06-22T20:07:07+03:30", "utc": "1937-06-22T16:37:07Z", "ms": -1026458572879.0986 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "1937-06-23", "window": { "start": { "local": "1937-06-23T18:52:18+03:30", "utc": "1937-06-23T15:22:18Z", "ms": -1026376662472.9843 }, "end": { "local": "1937-06-23T20:07:19+03:30", "utc": "1937-06-23T16:37:19Z", "ms": -1026372161398.9481 } }, "covered_min": 75, "window_min": 75, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:22 on Wed 23 Jun to 02:30 on Thu 24 Jun.", "fact": "1937-06-22T20:51:57Z → 1937-06-23T22:59:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:07 on the 22nd, 18:52–20:07 on the 23rd.", "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 75 minutes on the 22nd and 75 of 75 on the 23rd.", "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 15289 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Mashhad, 1937: Wednesday 23 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vata-savitri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Vata-savitri vrata (Deccan) (pradosavyapini, purvaviddha), Snanayatra (Bengal & Orissa) (paraviddha)." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-06-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-23", "confidence": "determinate" } ], "quote": "In Mashhad, Vaṭa Sāvitrī Vrata 1937 falls on Wednesday 23 June. Pūrṇimā runs from 00:22 on Wed 23 Jun to 02:30 on Thu 24 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-06-27", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-06-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35764, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-06-27T06:32:38+03:30", "utc": "1937-06-27T03:02:38Z", "ms": -1026075441743.5459 }, "end": { "local": "1937-06-28T06:58:48+03:30", "utc": "1937-06-28T03:28:48Z", "ms": -1025987472318.4009 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-27T06:32:38+03:30", "utc": "1937-06-27T03:02:38Z", "ms": -1026075441743.5459 }, "end": { "local": "1937-06-28T06:58:48+03:30", "utc": "1937-06-28T03:28:48Z", "ms": -1025987472318.4009 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-06-26", "window": { "start": { "local": "1937-06-26T20:29:36+03:30", "utc": "1937-06-26T16:59:36Z", "ms": -1026111624393.5107 }, "end": { "local": "1937-06-26T20:29:36+03:30", "utc": "1937-06-26T16:59:36Z", "ms": -1026111624393.5107 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-06-27", "window": { "start": { "local": "1937-06-27T21:02:44+03:30", "utc": "1937-06-27T17:32:44Z", "ms": -1026023235955.4056 }, "end": { "local": "1937-06-27T21:02:44+03:30", "utc": "1937-06-27T17:32:44Z", "ms": -1026023235955.4056 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:33 on Sun 27 Jun to 06:59 on Mon 28 Jun.", "fact": "1937-06-27T03:02:38Z → 1937-06-28T03:28:48Z" }, { "step": "kaala", "text": "Moonrise is at 20:30 on the 26th and 21:03 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 26th and is on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35764 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Sunday 27 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": "1937-06-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-27", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Sunday 27 June. Caturthī runs from 06:33 on Sun 27 Jun to 06:59 on Mon 28 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-06-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-07-04", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18464, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-07-03T23:11:02+03:30", "utc": "1937-07-03T19:41:02Z", "ms": -1025497137671.8732 }, "end": { "local": "1937-07-04T20:22:12+03:30", "utc": "1937-07-04T16:52:12Z", "ms": -1025420868450.4187 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-03T23:11:02+03:30", "utc": "1937-07-03T19:41:02Z", "ms": -1025497137671.8732 }, "end": { "local": "1937-07-04T20:22:12+03:30", "utc": "1937-07-04T16:52:12Z", "ms": -1025420868450.4187 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-07-04", "window": { "start": { "local": "1937-07-04T04:18:46+03:30", "utc": "1937-07-04T00:48:46Z", "ms": -1025478673781.1965 }, "end": { "local": "1937-07-04T04:18:46+03:30", "utc": "1937-07-04T00:48:46Z", "ms": -1025478673781.1965 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-07-05", "window": { "start": { "local": "1937-07-05T04:19:16+03:30", "utc": "1937-07-05T00:49:16Z", "ms": -1025392243738.8065 }, "end": { "local": "1937-07-05T04:19:16+03:30", "utc": "1937-07-05T00:49:16Z", "ms": -1025392243738.8065 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:11 on Sat 3 Jul to 20:22 on Sun 4 Jul.", "fact": "1937-07-03T19:41:02Z → 1937-07-04T16:52:12Z" }, { "step": "kaala", "text": "Sunrise is at 04:19 on the 4th and 04:19 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18464 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Mashhad, 1937: Sunday 4 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": "1937-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-04", "confidence": "determinate" } ], "quote": "In Mashhad, Yoginī Ekādaśī 1937 falls on Sunday 4 July. Ekādaśī runs from 23:11 on Sat 3 Jul to 20:22 on Sun 4 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-07-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-07-05", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5668, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-07-05T17:17:50+03:30", "utc": "1937-07-05T13:47:50Z", "ms": -1025345529648.2733 }, "end": { "local": "1937-07-06T14:04:35+03:30", "utc": "1937-07-06T10:34:35Z", "ms": -1025270724883.167 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-05T17:17:50+03:30", "utc": "1937-07-05T13:47:50Z", "ms": -1025345529648.2733 }, "end": { "local": "1937-07-06T14:04:35+03:30", "utc": "1937-07-06T10:34:35Z", "ms": -1025270724883.167 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-07-05", "window": { "start": { "local": "1937-07-05T18:52:18+03:30", "utc": "1937-07-05T15:22:18Z", "ms": -1025339861973.2273 }, "end": { "local": "1937-07-05T20:07:58+03:30", "utc": "1937-07-05T16:37:58Z", "ms": -1025335322052.5859 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1937-07-06", "window": { "start": { "local": "1937-07-06T18:52:07+03:30", "utc": "1937-07-06T15:22:07Z", "ms": -1025253473084.1416 }, "end": { "local": "1937-07-06T20:07:53+03:30", "utc": "1937-07-06T16:37:53Z", "ms": -1025248927381.2241 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:18 on Mon 5 Jul to 14:05 on Tue 6 Jul.", "fact": "1937-07-05T13:47:50Z → 1937-07-06T10:34:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:08 on the 5th, 18:52–20:08 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 76 of 76 minutes on the 5th and 0 of 76 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 5668 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Monday 5 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": "1937-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-05", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Monday 5 July. Trayodaśī runs from 17:18 on Mon 5 Jul to 14:05 on Tue 6 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-07-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-07-06", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32858, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-07-06T14:04:35+03:30", "utc": "1937-07-06T10:34:35Z", "ms": -1025270724883.167 }, "end": { "local": "1937-07-07T10:50:01+03:30", "utc": "1937-07-07T07:20:01Z", "ms": -1025195998617.4249 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-06T14:04:35+03:30", "utc": "1937-07-06T10:34:35Z", "ms": -1025270724883.167 }, "end": { "local": "1937-07-07T10:50:01+03:30", "utc": "1937-07-07T07:20:01Z", "ms": -1025195998617.4249 } }, "kaala": "nishita", "days": [ { "local_date": "1937-07-06", "window": { "start": { "local": "1937-07-06T23:12:13+03:30", "utc": "1937-07-06T19:42:13Z", "ms": -1025237866698.2009 }, "end": { "local": "1937-07-07T00:00:13+03:30", "utc": "1937-07-06T20:30:13Z", "ms": -1025234986698.2009 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-07", "window": { "start": { "local": "1937-07-07T23:12:24+03:30", "utc": "1937-07-07T19:42:24Z", "ms": -1025151456480.0581 }, "end": { "local": "1937-07-08T00:00:24+03:30", "utc": "1937-07-07T20:30:24Z", "ms": -1025148576480.0581 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:05 on Tue 6 Jul to 10:50 on Wed 7 Jul.", "fact": "1937-07-06T10:34:35Z → 1937-07-07T07:20:01Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:12–00:00 on the 6th, 23:12–00:00 on the 7th.", "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 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32858 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Tuesday 6 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": "1937-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-06", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Tuesday 6 July. Caturdaśī runs from 14:05 on Tue 6 Jul to 10:50 on Wed 7 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-07-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22892, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1937-07-09T04:50:53+03:30", "utc": "1937-07-09T01:20:53Z", "ms": -1025044746722.8818 }, "end": { "local": "1937-07-10T02:24:05+03:30", "utc": "1937-07-09T22:54:05Z", "ms": -1024967155296.1118 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-09T04:50:53+03:30", "utc": "1937-07-09T01:20:53Z", "ms": -1025044746722.8818 }, "end": { "local": "1937-07-10T02:24:05+03:30", "utc": "1937-07-09T22:54:05Z", "ms": -1024967155296.1118 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-09", "window": { "start": { "local": "1937-07-09T11:12:25+03:30", "utc": "1937-07-09T07:42:25Z", "ms": -1025021854831.3754 }, "end": { "local": "1937-07-09T12:00:25+03:30", "utc": "1937-07-09T08:30:25Z", "ms": -1025018974831.3754 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-10", "window": { "start": { "local": "1937-07-10T11:12:34+03:30", "utc": "1937-07-10T07:42:34Z", "ms": -1024935446277.3108 }, "end": { "local": "1937-07-10T12:00:34+03:30", "utc": "1937-07-10T08:30:34Z", "ms": -1024932566277.3108 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 04:51 on Fri 9 Jul to 02:24 on Sat 10 Jul.", "fact": "1937-07-09T01:20:53Z → 1937-07-09T22:54:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:12–12:00 on the 9th, 11:13–12:01 on the 10th.", "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 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22892 s" }, { "step": "ruling", "text": "Rathayātrā, Mashhad, 1937: Friday 9 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-07-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-09", "confidence": "determinate" } ], "quote": "In Mashhad, Rathayātrā 1937 falls on Friday 9 July. Dvitīyā runs from 04:51 on Fri 9 Jul to 02:24 on Sat 10 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-07-11", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38528, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-07-11T00:30:33+03:30", "utc": "1937-07-10T21:00:33Z", "ms": -1024887566528.7878 }, "end": { "local": "1937-07-11T23:17:37+03:30", "utc": "1937-07-11T19:47:37Z", "ms": -1024805542719.5469 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-11T00:30:33+03:30", "utc": "1937-07-10T21:00:33Z", "ms": -1024887566528.7878 }, "end": { "local": "1937-07-11T23:17:37+03:30", "utc": "1937-07-11T19:47:37Z", "ms": -1024805542719.5469 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-11", "window": { "start": { "local": "1937-07-11T11:12:42+03:30", "utc": "1937-07-11T07:42:42Z", "ms": -1024849038148.7969 }, "end": { "local": "1937-07-11T12:00:42+03:30", "utc": "1937-07-11T08:30:42Z", "ms": -1024846158148.7969 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-12", "window": { "start": { "local": "1937-07-12T11:12:50+03:30", "utc": "1937-07-12T07:42:50Z", "ms": -1024762630465.3201 }, "end": { "local": "1937-07-12T12:00:50+03:30", "utc": "1937-07-12T08:30:50Z", "ms": -1024759750465.3201 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:31 on Sun 11 Jul to 23:18 on Sun 11 Jul.", "fact": "1937-07-10T21:00:33Z → 1937-07-11T19:47:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 11th, 11:13–12:01 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38528 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Sunday 11 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": "1937-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-11", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Sunday 11 July. Caturthī runs from 00:31 on Sun 11 Jul to 23:18 on Sun 11 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-07-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38978, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-07-11T23:17:37+03:30", "utc": "1937-07-11T19:47:37Z", "ms": -1024805542719.5469 }, "end": { "local": "1937-07-12T22:50:28+03:30", "utc": "1937-07-12T19:20:28Z", "ms": -1024720772233.4293 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-11T23:17:37+03:30", "utc": "1937-07-11T19:47:37Z", "ms": -1024805542719.5469 }, "end": { "local": "1937-07-12T22:50:28+03:30", "utc": "1937-07-12T19:20:28Z", "ms": -1024720772233.4293 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-11", "window": { "start": { "local": "1937-07-11T11:12:42+03:30", "utc": "1937-07-11T07:42:42Z", "ms": -1024849038148.7969 }, "end": { "local": "1937-07-11T12:00:42+03:30", "utc": "1937-07-11T08:30:42Z", "ms": -1024846158148.7969 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-07-12", "window": { "start": { "local": "1937-07-12T11:12:50+03:30", "utc": "1937-07-12T07:42:50Z", "ms": -1024762630465.3201 }, "end": { "local": "1937-07-12T12:00:50+03:30", "utc": "1937-07-12T08:30:50Z", "ms": -1024759750465.3201 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 23:18 on Sun 11 Jul to 22:50 on Mon 12 Jul.", "fact": "1937-07-11T19:47:37Z → 1937-07-12T19:20:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 11th, 11:13–12:01 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38978 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Mashhad, 1937: Monday 12 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-12", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Pañcamī 1937 falls on Monday 12 July. Pañcamī runs from 23:18 on Sun 11 Jul to 22:50 on Mon 12 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39326, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-07-13T23:11:09+03:30", "utc": "1937-07-13T19:41:09Z", "ms": -1024633130951.9089 }, "end": { "local": "1937-07-15T00:17:43+03:30", "utc": "1937-07-14T20:47:43Z", "ms": -1024542736534.2659 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-13T23:11:09+03:30", "utc": "1937-07-13T19:41:09Z", "ms": -1024633130951.9089 }, "end": { "local": "1937-07-15T00:17:43+03:30", "utc": "1937-07-14T20:47:43Z", "ms": -1024542736534.2659 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-14", "window": { "start": { "local": "1937-07-14T11:13:03+03:30", "utc": "1937-07-14T07:43:03Z", "ms": -1024589816502.5802 }, "end": { "local": "1937-07-14T12:01:03+03:30", "utc": "1937-07-14T08:31:03Z", "ms": -1024586936502.5802 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-15", "window": { "start": { "local": "1937-07-15T11:13:10+03:30", "utc": "1937-07-15T07:43:10Z", "ms": -1024503410253.8682 }, "end": { "local": "1937-07-15T12:01:10+03:30", "utc": "1937-07-15T08:31:10Z", "ms": -1024500530253.8682 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 23:11 on Tue 13 Jul to 00:18 on Thu 15 Jul.", "fact": "1937-07-13T19:41:09Z → 1937-07-14T20:47:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 14th, 11:13–12:01 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 39326 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Mashhad, 1937: Wednesday 14 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-14", "confidence": "determinate" } ], "quote": "In Mashhad, Vivasvat Saptamī 1937 falls on Wednesday 14 July. Saptamī runs from 23:11 on Tue 13 Jul to 00:18 on Thu 15 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-07-19", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8524, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-07-18T06:49:18+03:30", "utc": "1937-07-18T03:19:18Z", "ms": -1024260041685.1138 }, "end": { "local": "1937-07-19T09:21:26+03:30", "utc": "1937-07-19T05:51:26Z", "ms": -1024164514401.1191 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-18T06:49:18+03:30", "utc": "1937-07-18T03:19:18Z", "ms": -1024260041685.1138 }, "end": { "local": "1937-07-19T09:21:26+03:30", "utc": "1937-07-19T05:51:26Z", "ms": -1024164514401.1191 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-07-18", "window": { "start": { "local": "1937-07-18T04:27:14+03:30", "utc": "1937-07-18T00:57:14Z", "ms": -1024268565882.2754 }, "end": { "local": "1937-07-18T04:27:14+03:30", "utc": "1937-07-18T00:57:14Z", "ms": -1024268565882.2754 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-07-19", "window": { "start": { "local": "1937-07-19T04:27:56+03:30", "utc": "1937-07-19T00:57:56Z", "ms": -1024182123802.9507 }, "end": { "local": "1937-07-19T04:27:56+03:30", "utc": "1937-07-19T00:57:56Z", "ms": -1024182123802.9507 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:49 on Sun 18 Jul to 09:21 on Mon 19 Jul.", "fact": "1937-07-18T03:19:18Z → 1937-07-19T05:51:26Z" }, { "step": "kaala", "text": "Sunrise is at 04:27 on the 18th and 04:28 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 8524 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Mashhad, 1937: Monday 19 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-19", "confidence": "determinate" } ], "quote": "In Mashhad, Hariśayanī Ekādaśī 1937 falls on Monday 19 July. Ekādaśī runs from 06:49 on Sun 18 Jul to 09:21 on Mon 19 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-07-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-07-20", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18235, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-07-20T11:42:17+03:30", "utc": "1937-07-20T08:12:17Z", "ms": -1024069663089.8003 }, "end": { "local": "1937-07-21T13:41:56+03:30", "utc": "1937-07-21T10:11:56Z", "ms": -1023976084386.4626 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-20T11:42:17+03:30", "utc": "1937-07-20T08:12:17Z", "ms": -1024069663089.8003 }, "end": { "local": "1937-07-21T13:41:56+03:30", "utc": "1937-07-21T10:11:56Z", "ms": -1023976084386.4626 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-07-20", "window": { "start": { "local": "1937-07-20T18:46:27+03:30", "utc": "1937-07-20T15:16:27Z", "ms": -1024044212509.07 }, "end": { "local": "1937-07-20T20:04:11+03:30", "utc": "1937-07-20T16:34:11Z", "ms": -1024039549232.8379 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1937-07-21", "window": { "start": { "local": "1937-07-21T18:45:50+03:30", "utc": "1937-07-21T15:15:50Z", "ms": -1023957849604.6089 }, "end": { "local": "1937-07-21T20:03:44+03:30", "utc": "1937-07-21T16:33:44Z", "ms": -1023953175552.5297 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:42 on Tue 20 Jul to 13:42 on Wed 21 Jul.", "fact": "1937-07-20T08:12:17Z → 1937-07-21T10:11:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:04 on the 20th, 18:46–20:04 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 78 of 78 minutes on the 20th and 0 of 78 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 18235 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Tuesday 20 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": "1937-07-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-20", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Tuesday 20 July. Trayodaśī runs from 11:42 on Tue 20 Jul to 13:42 on Wed 21 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-07-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-22", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1302, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-07-22T15:13:58+03:30", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T16:15:29+03:30", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-22T15:13:58+03:30", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T16:15:29+03:30", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 } }, "kaala": "sayahna", "days": [ { "local_date": "1937-07-22", "window": { "start": { "local": "1937-07-22T15:54:10+03:30", "utc": "1937-07-22T12:24:10Z", "ms": -1023881749512.5236 }, "end": { "local": "1937-07-22T18:45:12+03:30", "utc": "1937-07-22T15:15:12Z", "ms": -1023871488337.1508 } }, "covered_min": 171, "window_min": 171, "qualifies": true }, { "local_date": "1937-07-23", "window": { "start": { "local": "1937-07-23T15:53:47+03:30", "utc": "1937-07-23T12:23:47Z", "ms": -1023795372950.2441 }, "end": { "local": "1937-07-23T18:44:31+03:30", "utc": "1937-07-23T15:14:31Z", "ms": -1023785128686.8861 } }, "covered_min": 22, "window_min": 171, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:14 on Thu 22 Jul to 16:15 on Fri 23 Jul.", "fact": "1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:54–18:45 on the 22nd, 15:54–18:45 on the 23rd.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 171 of 171 minutes on the 22nd and 22 of 171 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1302 s" }, { "step": "ruling", "text": "Kokilā Vrata, Mashhad, 1937: Thursday 22 July.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1937-07-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-22", "confidence": "boundary" } ], "quote": "In Mashhad, Kokilā Vrata 1937 falls on Thursday 22 July. Pūrṇimā runs from 15:14 on Thu 22 Jul to 16:15 on Fri 23 Jul and covers all of sāyāhna that late afternoon. It also reaches the next late afternoon for 22 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/mashhad/festivals/1937/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": "/mashhad/festivals/1937/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8943, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-07-22T15:13:58+03:30", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T16:15:29+03:30", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-22T15:13:58+03:30", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T16:15:29+03:30", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-07-22", "window": { "start": { "local": "1937-07-22T18:45:12+03:30", "utc": "1937-07-22T15:15:12Z", "ms": -1023871488337.1508 }, "end": { "local": "1937-07-22T20:03:17+03:30", "utc": "1937-07-22T16:33:17Z", "ms": -1023866803226.0209 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1937-07-23", "window": { "start": { "local": "1937-07-23T18:44:31+03:30", "utc": "1937-07-23T15:14:31Z", "ms": -1023785128686.8861 }, "end": { "local": "1937-07-23T20:02:48+03:30", "utc": "1937-07-23T16:32:48Z", "ms": -1023780432239.9336 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:14 on Thu 22 Jul to 16:15 on Fri 23 Jul.", "fact": "1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:45–20:03 on the 22nd, 18:45–20:03 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 78 of 78 minutes on the 22nd and 0 of 78 on the 23rd.", "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 8943 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Mashhad, 1937: Thursday 22 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": "1937-07-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-22", "confidence": "determinate" } ], "quote": "In Mashhad, Śiva Śayanotsava 1937 falls on Thursday 22 July. Pūrṇimā runs from 15:14 on Thu 22 Jul to 16:15 on Fri 23 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28372, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-07-22T15:13:58+03:30", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T16:15:29+03:30", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-22T15:13:58+03:30", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T16:15:29+03:30", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 } }, "kaala": "udaya-3", "days": [ { "local_date": "1937-07-22", "window": { "start": { "local": "1937-07-22T04:30:06+03:30", "utc": "1937-07-22T01:00:06Z", "ms": -1023922794214.0149 }, "end": { "local": "1937-07-22T07:21:07+03:30", "utc": "1937-07-22T03:51:07Z", "ms": -1023912533038.6421 } }, "covered_min": 0, "window_min": 171, "qualifies": false }, { "local_date": "1937-07-23", "window": { "start": { "local": "1937-07-23T04:30:50+03:30", "utc": "1937-07-23T01:00:50Z", "ms": -1023836350003.6763 }, "end": { "local": "1937-07-23T07:21:34+03:30", "utc": "1937-07-23T03:51:34Z", "ms": -1023826105740.3182 } }, "covered_min": 171, "window_min": 171, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:14 on Thu 22 Jul to 16:15 on Fri 23 Jul.", "fact": "1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 04:30–07:21 on the 22nd, 04:31–07:22 on the 23rd.", "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 171 minutes on the 22nd and 171 of 171 on the 23rd.", "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 28372 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Mashhad, 1937: Friday 23 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": "1937-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-23", "confidence": "determinate" } ], "quote": "In Mashhad, Vyāsa Pūjā 1937 falls on Friday 23 July. Pūrṇimā runs from 15:14 on Thu 22 Jul to 16:15 on Fri 23 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11540, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-07-22T15:13:58+03:30", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T16:15:29+03:30", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-22T15:13:58+03:30", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T16:15:29+03:30", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-22", "window": { "start": { "local": "1937-07-22T11:13:39+03:30", "utc": "1937-07-22T07:43:39Z", "ms": -1023898581275.5828 }, "end": { "local": "1937-07-22T12:01:39+03:30", "utc": "1937-07-22T08:31:39Z", "ms": -1023895701275.5828 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-07-23", "window": { "start": { "local": "1937-07-23T11:13:41+03:30", "utc": "1937-07-23T07:43:41Z", "ms": -1023812179345.2812 }, "end": { "local": "1937-07-23T12:01:41+03:30", "utc": "1937-07-23T08:31:41Z", "ms": -1023809299345.2812 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:14 on Thu 22 Jul to 16:15 on Fri 23 Jul.", "fact": "1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 22nd, 11:14–12:02 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11540 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Mashhad, 1937: Friday 23 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": "1937-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-23", "confidence": "determinate" } ], "quote": "In Mashhad, Guru Pūrṇimā 1937 falls on Friday 23 July. Pūrṇimā runs from 15:14 on Thu 22 Jul to 16:15 on Fri 23 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8323, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1937-07-24T16:46:15+03:30", "utc": "1937-07-24T13:16:15Z", "ms": -1023705824947.5991 }, "end": { "local": "1937-07-25T16:47:59+03:30", "utc": "1937-07-25T13:17:59Z", "ms": -1023619320910.8528 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-07-24T16:46:15+03:30", "utc": "1937-07-24T13:16:15Z", "ms": -1023705824947.5991 }, "end": { "local": "1937-07-25T16:47:59+03:30", "utc": "1937-07-25T13:17:59Z", "ms": -1023619320910.8528 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-07-24", "window": { "start": { "local": "1937-07-24T19:04:58+03:30", "utc": "1937-07-24T15:34:58Z", "ms": -1023697501713.4332 }, "end": { "local": "1937-07-24T19:04:58+03:30", "utc": "1937-07-24T15:34:58Z", "ms": -1023697501713.4332 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-07-25", "window": { "start": { "local": "1937-07-25T19:37:19+03:30", "utc": "1937-07-25T16:07:19Z", "ms": -1023609161458.4038 }, "end": { "local": "1937-07-25T19:37:19+03:30", "utc": "1937-07-25T16:07:19Z", "ms": -1023609161458.4038 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 16:46 on Sat 24 Jul to 16:48 on Sun 25 Jul.", "fact": "1937-07-24T13:16:15Z → 1937-07-25T13:17:59Z" }, { "step": "kaala", "text": "Moonrise is at 19:05 on the 24th and 19:37 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 24th and is not on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8323 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Mashhad, 1937: Saturday 24 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": "1937-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-24", "confidence": "determinate" } ], "quote": "In Mashhad, Aśūnya Śayana Vrata (Āṣāḍha) 1937 falls on Saturday 24 July. Dvitīyā runs from 16:46 on Sat 24 Jul to 16:48 on Sun 25 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-07-26", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13506, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-07-26T16:23:21+03:30", "utc": "1937-07-26T12:53:21Z", "ms": -1023534399313.6832 }, "end": { "local": "1937-07-27T15:35:15+03:30", "utc": "1937-07-27T12:05:15Z", "ms": -1023450885059.2439 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-07-26T16:23:21+03:30", "utc": "1937-07-26T12:53:21Z", "ms": -1023534399313.6832 }, "end": { "local": "1937-07-27T15:35:15+03:30", "utc": "1937-07-27T12:05:15Z", "ms": -1023450885059.2439 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-07-26", "window": { "start": { "local": "1937-07-26T20:08:27+03:30", "utc": "1937-07-26T16:38:27Z", "ms": -1023520893277.9622 }, "end": { "local": "1937-07-26T20:08:27+03:30", "utc": "1937-07-26T16:38:27Z", "ms": -1023520893277.9622 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-07-27", "window": { "start": { "local": "1937-07-27T20:39:33+03:30", "utc": "1937-07-27T17:09:33Z", "ms": -1023432626851.2903 }, "end": { "local": "1937-07-27T20:39:33+03:30", "utc": "1937-07-27T17:09:33Z", "ms": -1023432626851.2903 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:23 on Mon 26 Jul to 15:35 on Tue 27 Jul.", "fact": "1937-07-26T12:53:21Z → 1937-07-27T12:05:15Z" }, { "step": "kaala", "text": "Moonrise is at 20:08 on the 26th and 20:40 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 26th and is not on the 27th.", "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 13506 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Monday 26 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": "1937-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-26", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Monday 26 July. Caturthī runs from 16:23 on Mon 26 Jul to 15:35 on Tue 27 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-07-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-08-02", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-02", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 126, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-08-02T04:36:27+03:30", "utc": "1937-08-02T01:06:27Z", "ms": -1022972013265.366 }, "end": { "local": "1937-08-03T02:02:55+03:30", "utc": "1937-08-02T22:32:55Z", "ms": -1022894824813.2955 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-02T04:36:27+03:30", "utc": "1937-08-02T01:06:27Z", "ms": -1022972013265.366 }, "end": { "local": "1937-08-03T02:02:55+03:30", "utc": "1937-08-02T22:32:55Z", "ms": -1022894824813.2955 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-08-02", "window": { "start": { "local": "1937-08-02T04:38:33+03:30", "utc": "1937-08-02T01:08:33Z", "ms": -1022971886925.5541 }, "end": { "local": "1937-08-02T04:38:33+03:30", "utc": "1937-08-02T01:08:33Z", "ms": -1022971886925.5541 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-08-03", "window": { "start": { "local": "1937-08-03T04:39:21+03:30", "utc": "1937-08-03T01:09:21Z", "ms": -1022885439074.7555 }, "end": { "local": "1937-08-03T04:39:21+03:30", "utc": "1937-08-03T01:09:21Z", "ms": -1022885439074.7555 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:36 on Mon 2 Aug to 02:03 on Tue 3 Aug.", "fact": "1937-08-02T01:06:27Z → 1937-08-02T22:32:55Z" }, { "step": "kaala", "text": "Sunrise is at 04:39 on the 2nd and 04:39 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 126 s < 300 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Mashhad, 1937: Monday 2 August.", "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": "1937-08-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-02", "confidence": "boundary" } ], "quote": "In Mashhad, Kāmikā Ekādaśī 1937 falls on Monday 2 August. Ekādaśī runs from 04:36 on Mon 2 Aug to 02:03 on Tue 3 Aug and is current at sunrise that day. It is 2 min 06 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-08-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-08-04", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3194, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-08-03T23:25:08+03:30", "utc": "1937-08-03T19:55:08Z", "ms": -1022817892046.4872 }, "end": { "local": "1937-08-04T20:48:35+03:30", "utc": "1937-08-04T17:18:35Z", "ms": -1022740885130.4574 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-03T23:25:08+03:30", "utc": "1937-08-03T19:55:08Z", "ms": -1022817892046.4872 }, "end": { "local": "1937-08-04T20:48:35+03:30", "utc": "1937-08-04T17:18:35Z", "ms": -1022740885130.4574 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-08-03", "window": { "start": { "local": "1937-08-03T18:35:27+03:30", "utc": "1937-08-03T15:05:27Z", "ms": -1022835272855.607 }, "end": { "local": "1937-08-03T19:56:05+03:30", "utc": "1937-08-03T16:26:05Z", "ms": -1022830435281.2654 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1937-08-04", "window": { "start": { "local": "1937-08-04T18:34:29+03:30", "utc": "1937-08-04T15:04:29Z", "ms": -1022748930826.5046 }, "end": { "local": "1937-08-04T19:55:21+03:30", "utc": "1937-08-04T16:25:21Z", "ms": -1022744079099.3444 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:25 on Tue 3 Aug to 20:49 on Wed 4 Aug.", "fact": "1937-08-03T19:55:08Z → 1937-08-04T17:18:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:35–19:56 on the 3rd, 18:34–19:55 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 81 minutes on the 3rd and 81 of 81 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 3194 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Wednesday 4 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": "1937-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-04", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Wednesday 4 August. Trayodaśī runs from 23:25 on Tue 3 Aug to 20:49 on Wed 4 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-08-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-08-04", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8708, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-08-04T20:48:35+03:30", "utc": "1937-08-04T17:18:35Z", "ms": -1022740885130.4574 }, "end": { "local": "1937-08-05T18:19:56+03:30", "utc": "1937-08-05T14:49:56Z", "ms": -1022663403945.8575 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-04T20:48:35+03:30", "utc": "1937-08-04T17:18:35Z", "ms": -1022740885130.4574 }, "end": { "local": "1937-08-05T18:19:56+03:30", "utc": "1937-08-05T14:49:56Z", "ms": -1022663403945.8575 } }, "kaala": "nishita", "days": [ { "local_date": "1937-08-04", "window": { "start": { "local": "1937-08-04T23:13:43+03:30", "utc": "1937-08-04T19:43:43Z", "ms": -1022732176849.6533 }, "end": { "local": "1937-08-05T00:01:43+03:30", "utc": "1937-08-04T20:31:43Z", "ms": -1022729296849.6533 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-05", "window": { "start": { "local": "1937-08-05T23:13:38+03:30", "utc": "1937-08-05T19:43:38Z", "ms": -1022645782343.9263 }, "end": { "local": "1937-08-06T00:01:38+03:30", "utc": "1937-08-05T20:31:38Z", "ms": -1022642902343.9263 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:49 on Wed 4 Aug to 18:20 on Thu 5 Aug.", "fact": "1937-08-04T17:18:35Z → 1937-08-05T14:49:56Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:14–00:02 on the 4th, 23:14–00:02 on the 5th.", "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 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8708 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Wednesday 4 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": "1937-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-04", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Wednesday 4 August. Caturdaśī runs from 20:49 on Wed 4 Aug to 18:20 on Thu 5 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-08-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1121, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-08-08T12:59:06+03:30", "utc": "1937-08-08T09:29:06Z", "ms": -1022423453885.1086 }, "end": { "local": "1937-08-09T12:19:27+03:30", "utc": "1937-08-09T08:49:27Z", "ms": -1022339433108.1495 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-08T12:59:06+03:30", "utc": "1937-08-08T09:29:06Z", "ms": -1022423453885.1086 }, "end": { "local": "1937-08-09T12:19:27+03:30", "utc": "1937-08-09T08:49:27Z", "ms": -1022339433108.1495 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-08", "window": { "start": { "local": "1937-08-08T11:12:53+03:30", "utc": "1937-08-08T07:42:53Z", "ms": -1022429826674.6464 }, "end": { "local": "1937-08-08T12:00:53+03:30", "utc": "1937-08-08T08:30:53Z", "ms": -1022426946674.6464 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-09", "window": { "start": { "local": "1937-08-09T11:12:45+03:30", "utc": "1937-08-09T07:42:45Z", "ms": -1022343434575.7493 }, "end": { "local": "1937-08-09T12:00:45+03:30", "utc": "1937-08-09T08:30:45Z", "ms": -1022340554575.7493 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 12:59 on Sun 8 Aug to 12:19 on Mon 9 Aug.", "fact": "1937-08-08T09:29:06Z → 1937-08-09T08:49:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 8th, 11:13–12:01 on the 9th.", "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 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1121 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Mashhad, 1937: Monday 9 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "madhusrava-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Madhusrava (Gujerat) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-08-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-09", "confidence": "boundary" } ], "quote": "In Mashhad, Madhusravā Tṛtīyā (Hariyali Teej) 1937 falls on Monday 9 August. Tṛtīyā runs from 12:59 on Sun 8 Aug to 12:19 on Mon 9 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-08-10", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1121, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-08-09T12:19:27+03:30", "utc": "1937-08-09T08:49:27Z", "ms": -1022339433108.1495 }, "end": { "local": "1937-08-10T12:23:05+03:30", "utc": "1937-08-10T08:53:05Z", "ms": -1022252815131.803 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-09T12:19:27+03:30", "utc": "1937-08-09T08:49:27Z", "ms": -1022339433108.1495 }, "end": { "local": "1937-08-10T12:23:05+03:30", "utc": "1937-08-10T08:53:05Z", "ms": -1022252815131.803 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-09", "window": { "start": { "local": "1937-08-09T11:12:45+03:30", "utc": "1937-08-09T07:42:45Z", "ms": -1022343434575.7493 }, "end": { "local": "1937-08-09T12:00:45+03:30", "utc": "1937-08-09T08:30:45Z", "ms": -1022340554575.7493 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-10", "window": { "start": { "local": "1937-08-10T11:12:37+03:30", "utc": "1937-08-10T07:42:37Z", "ms": -1022257043061.0869 }, "end": { "local": "1937-08-10T12:00:37+03:30", "utc": "1937-08-10T08:30:37Z", "ms": -1022254163061.0869 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:19 on Mon 9 Aug to 12:23 on Tue 10 Aug.", "fact": "1937-08-09T08:49:27Z → 1937-08-10T08:53:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 9th, 11:13–12:01 on the 10th.", "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 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1121 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Tuesday 10 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-10", "confidence": "boundary" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Tuesday 10 August. Caturthī runs from 12:19 on Mon 9 Aug to 12:23 on Tue 10 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-08-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1348, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-08-10T12:23:05+03:30", "utc": "1937-08-10T08:53:05Z", "ms": -1022252815131.803 }, "end": { "local": "1937-08-11T13:11:33+03:30", "utc": "1937-08-11T09:41:33Z", "ms": -1022163506751.4111 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-10T12:23:05+03:30", "utc": "1937-08-10T08:53:05Z", "ms": -1022252815131.803 }, "end": { "local": "1937-08-11T13:11:33+03:30", "utc": "1937-08-11T09:41:33Z", "ms": -1022163506751.4111 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-10", "window": { "start": { "local": "1937-08-10T11:12:37+03:30", "utc": "1937-08-10T07:42:37Z", "ms": -1022257043061.0869 }, "end": { "local": "1937-08-10T12:00:37+03:30", "utc": "1937-08-10T08:30:37Z", "ms": -1022254163061.0869 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-11", "window": { "start": { "local": "1937-08-11T11:12:28+03:30", "utc": "1937-08-11T07:42:28Z", "ms": -1022170652126.937 }, "end": { "local": "1937-08-11T12:00:28+03:30", "utc": "1937-08-11T08:30:28Z", "ms": -1022167772126.937 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:23 on Tue 10 Aug to 13:12 on Wed 11 Aug.", "fact": "1937-08-10T08:53:05Z → 1937-08-11T09:41:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 10th, 11:12–12:00 on the 11th.", "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 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: paraviddha → only-day · margin 1348 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Mashhad, 1937: Wednesday 11 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-11", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Pañcamī 1937 falls on Wednesday 11 August. Pañcamī runs from 12:23 on Tue 10 Aug to 13:12 on Wed 11 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-08-17", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9645, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-08-17T00:09:55+03:30", "utc": "1937-08-16T20:39:55Z", "ms": -1021692004966.6334 }, "end": { "local": "1937-08-18T02:10:41+03:30", "utc": "1937-08-17T22:40:41Z", "ms": -1021598358571.7555 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-17T00:09:55+03:30", "utc": "1937-08-16T20:39:55Z", "ms": -1021692004966.6334 }, "end": { "local": "1937-08-18T02:10:41+03:30", "utc": "1937-08-17T22:40:41Z", "ms": -1021598358571.7555 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-08-17", "window": { "start": { "local": "1937-08-17T04:50:39+03:30", "utc": "1937-08-17T01:20:39Z", "ms": -1021675161350.3037 }, "end": { "local": "1937-08-17T04:50:39+03:30", "utc": "1937-08-17T01:20:39Z", "ms": -1021675161350.3037 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-08-18", "window": { "start": { "local": "1937-08-18T04:51:27+03:30", "utc": "1937-08-18T01:21:27Z", "ms": -1021588713086.182 }, "end": { "local": "1937-08-18T04:51:27+03:30", "utc": "1937-08-18T01:21:27Z", "ms": -1021588713086.182 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:10 on Tue 17 Aug to 02:11 on Wed 18 Aug.", "fact": "1937-08-16T20:39:55Z → 1937-08-17T22:40:41Z" }, { "step": "kaala", "text": "Sunrise is at 04:51 on the 17th and 04:51 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 9645 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Mashhad, 1937: Tuesday 17 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": "1937-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-17", "confidence": "determinate" } ], "quote": "In Mashhad, Putradā Ekādaśī 1937 falls on Tuesday 17 August. Ekādaśī runs from 00:10 on Tue 17 Aug to 02:11 on Wed 18 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-08-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27130, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-08-18T02:10:41+03:30", "utc": "1937-08-17T22:40:41Z", "ms": -1021598358571.7555 }, "end": { "local": "1937-08-19T03:38:45+03:30", "utc": "1937-08-19T00:08:45Z", "ms": -1021506674937.0896 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-18T02:10:41+03:30", "utc": "1937-08-17T22:40:41Z", "ms": -1021598358571.7555 }, "end": { "local": "1937-08-19T03:38:45+03:30", "utc": "1937-08-19T00:08:45Z", "ms": -1021506674937.0896 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-18", "window": { "start": { "local": "1937-08-18T11:11:09+03:30", "utc": "1937-08-18T07:41:09Z", "ms": -1021565931267.6584 }, "end": { "local": "1937-08-18T11:59:09+03:30", "utc": "1937-08-18T08:29:09Z", "ms": -1021563051267.6584 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-19", "window": { "start": { "local": "1937-08-19T11:10:55+03:30", "utc": "1937-08-19T07:40:55Z", "ms": -1021479544698.8967 }, "end": { "local": "1937-08-19T11:58:55+03:30", "utc": "1937-08-19T08:28:55Z", "ms": -1021476664698.8967 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 02:11 on Wed 18 Aug to 03:39 on Thu 19 Aug.", "fact": "1937-08-17T22:40:41Z → 1937-08-19T00:08:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 18th, 11:11–11:59 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27130 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Mashhad, 1937: Wednesday 18 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": "1937-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-18", "confidence": "determinate" } ], "quote": "In Mashhad, Dāmodara Dvādaśī 1937 falls on Wednesday 18 August. Dvādaśī runs from 02:11 on Wed 18 Aug to 03:39 on Thu 19 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/pradosha-vrata?on=1937-08-19", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28527, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-08-19T03:38:45+03:30", "utc": "1937-08-19T00:08:45Z", "ms": -1021506674937.0896 }, "end": { "local": "1937-08-20T04:29:02+03:30", "utc": "1937-08-20T00:59:02Z", "ms": -1021417257619.2028 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-19T03:38:45+03:30", "utc": "1937-08-19T00:08:45Z", "ms": -1021506674937.0896 }, "end": { "local": "1937-08-20T04:29:02+03:30", "utc": "1937-08-20T00:59:02Z", "ms": -1021417257619.2028 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-08-18", "window": { "start": { "local": "1937-08-18T18:18:51+03:30", "utc": "1937-08-18T14:48:51Z", "ms": -1021540269449.1348 }, "end": { "local": "1937-08-18T19:43:18+03:30", "utc": "1937-08-18T16:13:18Z", "ms": -1021535202175.4252 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1937-08-19", "window": { "start": { "local": "1937-08-19T18:17:35+03:30", "utc": "1937-08-19T14:47:35Z", "ms": -1021453944501.4808 }, "end": { "local": "1937-08-19T19:42:19+03:30", "utc": "1937-08-19T16:12:19Z", "ms": -1021448860805.8096 } }, "covered_min": 85, "window_min": 85, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:39 on Thu 19 Aug to 04:29 on Fri 20 Aug.", "fact": "1937-08-19T00:08:45Z → 1937-08-20T00:59:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:19–19:43 on the 18th, 18:18–19:42 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 0 of 84 minutes on the 18th and 85 of 85 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 28527 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Thursday 19 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": "1937-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-19", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Thursday 19 August. Trayodaśī runs from 03:39 on Thu 19 Aug to 04:29 on Fri 20 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-08-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2261, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-08-21T04:40:52+03:30", "utc": "1937-08-21T01:10:52Z", "ms": -1021330147772.3179 }, "end": { "local": "1937-08-22T04:16:58+03:30", "utc": "1937-08-22T00:46:58Z", "ms": -1021245181606.5586 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1937-08-21T16:33:07+03:30", "utc": "1937-08-21T13:03:07Z", "ms": -1021287413032.4493 }, "end": { "local": "1937-08-22T04:16:58+03:30", "utc": "1937-08-22T00:46:58Z", "ms": -1021245181606.5586 } }, "kaala": "day", "days": [ { "local_date": "1937-08-21", "window": { "start": { "local": "1937-08-21T04:53:51+03:30", "utc": "1937-08-21T01:23:51Z", "ms": -1021329368750.6013 }, "end": { "local": "1937-08-22T04:54:39+03:30", "utc": "1937-08-22T01:24:39Z", "ms": -1021242920796.086 } }, "covered_min": 704, "window_min": 1441, "qualifies": true }, { "local_date": "1937-08-22", "window": { "start": { "local": "1937-08-22T04:54:39+03:30", "utc": "1937-08-22T01:24:39Z", "ms": -1021242920796.086 }, "end": { "local": "1937-08-23T04:55:27+03:30", "utc": "1937-08-23T01:25:27Z", "ms": -1021156472918.617 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:41 on Sat 21 Aug to 04:17 on Sun 22 Aug. Its second half begins at 16:33 on Sat 21 Aug.", "fact": "1937-08-21T01:10:52Z → 1937-08-22T00:46:58Z · second half from 1937-08-21T13:03:07Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 04:54 on the 21st, and from 04:55 on the 22nd.", "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 704 of 1441 minutes on the 21st and 0 of 1441 on the 22nd.", "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 2261 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Mashhad, 1937: Saturday 21 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": "1937-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-21", "confidence": "determinate" } ], "quote": "In Mashhad, Rakṣā Bandhana (Rakhi) 1937 falls on Saturday 21 August. The second half of Pūrṇimā runs from 16:33 on Sat 21 Aug to 04:17 on Sun 22 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23375, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-08-21T04:40:52+03:30", "utc": "1937-08-21T01:10:52Z", "ms": -1021330147772.3179 }, "end": { "local": "1937-08-22T04:16:58+03:30", "utc": "1937-08-22T00:46:58Z", "ms": -1021245181606.5586 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-21T04:40:52+03:30", "utc": "1937-08-21T01:10:52Z", "ms": -1021330147772.3179 }, "end": { "local": "1937-08-22T04:16:58+03:30", "utc": "1937-08-22T00:46:58Z", "ms": -1021245181606.5586 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-21", "window": { "start": { "local": "1937-08-21T11:10:27+03:30", "utc": "1937-08-21T07:40:27Z", "ms": -1021306773032.1738 }, "end": { "local": "1937-08-21T11:58:27+03:30", "utc": "1937-08-21T08:28:27Z", "ms": -1021303893032.1738 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-22", "window": { "start": { "local": "1937-08-22T11:10:12+03:30", "utc": "1937-08-22T07:40:12Z", "ms": -1021220387904.0309 }, "end": { "local": "1937-08-22T11:58:12+03:30", "utc": "1937-08-22T08:28:12Z", "ms": -1021217507904.0309 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:41 on Sat 21 Aug to 04:17 on Sun 22 Aug.", "fact": "1937-08-21T01:10:52Z → 1937-08-22T00:46:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:10–11:58 on the 21st, 11:10–11:58 on the 22nd.", "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 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: unstated → only-day · margin 23375 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Mashhad, 1937: Saturday 21 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": "1937-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-21", "confidence": "determinate" } ], "quote": "In Mashhad, Ṛṣi Tarpaṇa 1937 falls on Saturday 21 August. Pūrṇimā runs from 04:41 on Sat 21 Aug to 04:17 on Sun 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26465, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1937-08-23T03:22:19+03:30", "utc": "1937-08-22T23:52:19Z", "ms": -1021162061487.624 }, "end": { "local": "1937-08-24T02:02:56+03:30", "utc": "1937-08-23T22:32:56Z", "ms": -1021080423625.9594 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-23T03:22:19+03:30", "utc": "1937-08-22T23:52:19Z", "ms": -1021162061487.624 }, "end": { "local": "1937-08-24T02:02:56+03:30", "utc": "1937-08-23T22:32:56Z", "ms": -1021080423625.9594 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-08-22", "window": { "start": { "local": "1937-08-22T18:10:00+03:30", "utc": "1937-08-22T14:40:00Z", "ms": -1021195200259.3745 }, "end": { "local": "1937-08-22T18:10:00+03:30", "utc": "1937-08-22T14:40:00Z", "ms": -1021195200259.3745 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-08-23", "window": { "start": { "local": "1937-08-23T18:41:52+03:30", "utc": "1937-08-23T15:11:52Z", "ms": -1021106888406.4314 }, "end": { "local": "1937-08-23T18:41:52+03:30", "utc": "1937-08-23T15:11:52Z", "ms": -1021106888406.4314 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 03:22 on Mon 23 Aug to 02:03 on Tue 24 Aug.", "fact": "1937-08-22T23:52:19Z → 1937-08-23T22:32:56Z" }, { "step": "kaala", "text": "Moonrise is at 18:10 on the 22nd and 18:42 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 22nd and is on the 23rd.", "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 26465 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Mashhad, 1937: Monday 23 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": "1937-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-23", "confidence": "determinate" } ], "quote": "In Mashhad, Aśūnya Śayana Vrata 1937 falls on Monday 23 August. Dvitīyā runs from 03:22 on Mon 23 Aug to 02:03 on Tue 24 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32805, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-08-24T02:02:56+03:30", "utc": "1937-08-23T22:32:56Z", "ms": -1021080423625.9594 }, "end": { "local": "1937-08-25T00:25:06+03:30", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-24T02:02:56+03:30", "utc": "1937-08-23T22:32:56Z", "ms": -1021080423625.9594 }, "end": { "local": "1937-08-25T00:25:06+03:30", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-24", "window": { "start": { "local": "1937-08-24T11:09:41+03:30", "utc": "1937-08-24T07:39:41Z", "ms": -1021047618975.91 }, "end": { "local": "1937-08-24T11:57:41+03:30", "utc": "1937-08-24T08:27:41Z", "ms": -1021044738975.91 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-25", "window": { "start": { "local": "1937-08-25T11:09:25+03:30", "utc": "1937-08-25T07:39:25Z", "ms": -1020961235140.9592 }, "end": { "local": "1937-08-25T11:57:25+03:30", "utc": "1937-08-25T08:27:25Z", "ms": -1020958355140.9592 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:03 on Tue 24 Aug to 00:25 on Wed 25 Aug.", "fact": "1937-08-23T22:32:56Z → 1937-08-24T20:55:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:10–11:58 on the 24th, 11:09–11:57 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 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 32805 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Mashhad, 1937: Tuesday 24 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": "1937-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-24", "confidence": "determinate" } ], "quote": "In Mashhad, Kajjalī Tṛtīyā (Kajari Teej) 1937 falls on Tuesday 24 August. Tṛtīyā runs from 02:03 on Tue 24 Aug to 00:25 on Wed 25 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15882, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-08-25T00:25:06+03:30", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "end": { "local": "1937-08-25T22:34:29+03:30", "utc": "1937-08-25T19:04:29Z", "ms": -1020920131023.5323 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-25T00:25:06+03:30", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "end": { "local": "1937-08-25T22:34:29+03:30", "utc": "1937-08-25T19:04:29Z", "ms": -1020920131023.5323 } }, "kaala": "sayahna", "days": [ { "local_date": "1937-08-24", "window": { "start": { "local": "1937-08-24T15:32:09+03:30", "utc": "1937-08-24T12:02:09Z", "ms": -1021031871292.4071 }, "end": { "local": "1937-08-24T18:11:07+03:30", "utc": "1937-08-24T14:41:07Z", "ms": -1021022332836.7385 } }, "covered_min": 0, "window_min": 159, "qualifies": false }, { "local_date": "1937-08-25", "window": { "start": { "local": "1937-08-25T15:31:14+03:30", "utc": "1937-08-25T12:01:14Z", "ms": -1020945525796.671 }, "end": { "local": "1937-08-25T18:09:47+03:30", "utc": "1937-08-25T14:39:47Z", "ms": -1020936012900.4789 } }, "covered_min": 159, "window_min": 159, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:25 on Wed 25 Aug to 22:34 on Wed 25 Aug.", "fact": "1937-08-24T20:55:06Z → 1937-08-25T19:04:29Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:32–18:11 on the 24th, 15:31–18:10 on the 25th.", "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 159 minutes on the 24th and 159 of 159 on the 25th.", "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 15882 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Mashhad, 1937: Wednesday 25 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": "1937-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-25", "confidence": "determinate" } ], "quote": "In Mashhad, Bahulā Caturthī 1937 falls on Wednesday 25 August. Caturthī runs from 00:25 on Wed 25 Aug to 22:34 on Wed 25 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-08-25", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9911, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-08-25T00:25:06+03:30", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "end": { "local": "1937-08-25T22:34:29+03:30", "utc": "1937-08-25T19:04:29Z", "ms": -1020920131023.5323 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-25T00:25:06+03:30", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "end": { "local": "1937-08-25T22:34:29+03:30", "utc": "1937-08-25T19:04:29Z", "ms": -1020920131023.5323 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-08-24", "window": { "start": { "local": "1937-08-24T19:14:32+03:30", "utc": "1937-08-24T15:44:32Z", "ms": -1021018528444.2446 }, "end": { "local": "1937-08-24T19:14:32+03:30", "utc": "1937-08-24T15:44:32Z", "ms": -1021018528444.2446 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-08-25", "window": { "start": { "local": "1937-08-25T19:49:18+03:30", "utc": "1937-08-25T16:19:18Z", "ms": -1020930041639.8867 }, "end": { "local": "1937-08-25T19:49:18+03:30", "utc": "1937-08-25T16:19:18Z", "ms": -1020930041639.8867 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:25 on Wed 25 Aug to 22:34 on Wed 25 Aug.", "fact": "1937-08-24T20:55:06Z → 1937-08-25T19:04:29Z" }, { "step": "kaala", "text": "Moonrise is at 19:15 on the 24th and 19:49 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 24th and is on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9911 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Wednesday 25 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-25", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Wednesday 25 August. Caturthī runs from 00:25 on Wed 25 Aug to 22:34 on Wed 25 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-08-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23747, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-08-26T20:35:49+03:30", "utc": "1937-08-26T17:05:49Z", "ms": -1020840851024.964 }, "end": { "local": "1937-08-27T18:32:38+03:30", "utc": "1937-08-27T15:02:38Z", "ms": -1020761841907.9164 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-26T20:35:49+03:30", "utc": "1937-08-26T17:05:49Z", "ms": -1020840851024.964 }, "end": { "local": "1937-08-27T18:32:38+03:30", "utc": "1937-08-27T15:02:38Z", "ms": -1020761841907.9164 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-26", "window": { "start": { "local": "1937-08-26T11:09:08+03:30", "utc": "1937-08-26T07:39:08Z", "ms": -1020874851701.5474 }, "end": { "local": "1937-08-26T11:57:08+03:30", "utc": "1937-08-26T08:27:08Z", "ms": -1020871971701.5474 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-27", "window": { "start": { "local": "1937-08-27T11:08:51+03:30", "utc": "1937-08-27T07:38:51Z", "ms": -1020788468639.832 }, "end": { "local": "1937-08-27T11:56:51+03:30", "utc": "1937-08-27T08:26:51Z", "ms": -1020785588639.832 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:36 on Thu 26 Aug to 18:33 on Fri 27 Aug.", "fact": "1937-08-26T17:05:49Z → 1937-08-27T15:02:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 26th, 11:09–11:57 on the 27th.", "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 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23747 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Mashhad, 1937: Friday 27 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": "1937-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-27", "confidence": "determinate" } ], "quote": "In Mashhad, Hala Ṣaṣṭhī 1937 falls on Friday 27 August. Ṣaṣṭhī runs from 20:36 on Thu 26 Aug to 18:33 on Fri 27 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24097, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-08-28T16:27:21+03:30", "utc": "1937-08-28T12:57:21Z", "ms": -1020682959084.8627 }, "end": { "local": "1937-08-29T14:21:32+03:30", "utc": "1937-08-29T10:51:32Z", "ms": -1020604108042.262 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-28T16:27:21+03:30", "utc": "1937-08-28T12:57:21Z", "ms": -1020682959084.8627 }, "end": { "local": "1937-08-29T14:21:32+03:30", "utc": "1937-08-29T10:51:32Z", "ms": -1020604108042.262 } }, "kaala": "nishita", "days": [ { "local_date": "1937-08-28", "window": { "start": { "local": "1937-08-28T23:08:58+03:30", "utc": "1937-08-28T19:38:58Z", "ms": -1020658862190.2952 }, "end": { "local": "1937-08-28T23:56:58+03:30", "utc": "1937-08-28T20:26:58Z", "ms": -1020655982190.2952 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-29", "window": { "start": { "local": "1937-08-29T23:08:40+03:30", "utc": "1937-08-29T19:38:40Z", "ms": -1020572479858.1846 }, "end": { "local": "1937-08-29T23:56:40+03:30", "utc": "1937-08-29T20:26:40Z", "ms": -1020569599858.1846 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:27 on Sat 28 Aug to 14:22 on Sun 29 Aug.", "fact": "1937-08-28T12:57:21Z → 1937-08-29T10:51:32Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:09–23:57 on the 28th, 23:09–23:57 on the 29th.", "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 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24097 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Mashhad, 1937: Saturday 28 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": "1937-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-28", "confidence": "determinate" } ], "quote": "In Mashhad, Janmāṣṭamī 1937 falls on Saturday 28 August. Aṣṭamī runs from 16:27 on Sat 28 Aug to 14:22 on Sun 29 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16247, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-08-27T18:32:38+03:30", "utc": "1937-08-27T15:02:38Z", "ms": -1020761841907.9164 }, "end": { "local": "1937-08-28T16:27:21+03:30", "utc": "1937-08-28T12:57:21Z", "ms": -1020682959084.8627 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-27T18:32:38+03:30", "utc": "1937-08-27T15:02:38Z", "ms": -1020761841907.9164 }, "end": { "local": "1937-08-28T16:27:21+03:30", "utc": "1937-08-28T12:57:21Z", "ms": -1020682959084.8627 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-27", "window": { "start": { "local": "1937-08-27T11:08:51+03:30", "utc": "1937-08-27T07:38:51Z", "ms": -1020788468639.832 }, "end": { "local": "1937-08-27T11:56:51+03:30", "utc": "1937-08-27T08:26:51Z", "ms": -1020785588639.832 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-28", "window": { "start": { "local": "1937-08-28T11:08:34+03:30", "utc": "1937-08-28T07:38:34Z", "ms": -1020702085938.381 }, "end": { "local": "1937-08-28T11:56:34+03:30", "utc": "1937-08-28T08:26:34Z", "ms": -1020699205938.381 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 18:33 on Fri 27 Aug to 16:27 on Sat 28 Aug.", "fact": "1937-08-27T15:02:38Z → 1937-08-28T12:57:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 27th, 11:09–11:57 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 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16247 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Mashhad, 1937: Saturday 28 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": "1937-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-28", "confidence": "determinate" } ], "quote": "In Mashhad, Śītalā Saptamī 1937 falls on Saturday 28 August. Saptamī runs from 18:33 on Fri 27 Aug to 16:27 on Sat 28 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-09-01", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11521, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-08-31T10:13:23+03:30", "utc": "1937-08-31T06:43:23Z", "ms": -1020446197151.4713 }, "end": { "local": "1937-09-01T08:14:36+03:30", "utc": "1937-09-01T04:44:36Z", "ms": -1020366924041.7576 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-31T10:13:23+03:30", "utc": "1937-08-31T06:43:23Z", "ms": -1020446197151.4713 }, "end": { "local": "1937-09-01T08:14:36+03:30", "utc": "1937-09-01T04:44:36Z", "ms": -1020366924041.7576 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-08-31", "window": { "start": { "local": "1937-08-31T05:01:48+03:30", "utc": "1937-08-31T01:31:48Z", "ms": -1020464892221.1184 }, "end": { "local": "1937-08-31T05:01:48+03:30", "utc": "1937-08-31T01:31:48Z", "ms": -1020464892221.1184 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-09-01", "window": { "start": { "local": "1937-09-01T05:02:35+03:30", "utc": "1937-09-01T01:32:35Z", "ms": -1020378444876.6083 }, "end": { "local": "1937-09-01T05:02:35+03:30", "utc": "1937-09-01T01:32:35Z", "ms": -1020378444876.6083 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:13 on Tue 31 Aug to 08:15 on Wed 1 Sep.", "fact": "1937-08-31T06:43:23Z → 1937-09-01T04:44:36Z" }, { "step": "kaala", "text": "Sunrise is at 05:02 on the 31st and 05:03 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 31st and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11521 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Mashhad, 1937: Wednesday 1 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": "1937-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-01", "confidence": "determinate" } ], "quote": "In Mashhad, Ajā Ekādaśī 1937 falls on Wednesday 1 September. Ekādaśī runs from 10:13 on Tue 31 Aug to 08:15 on Wed 1 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-09-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-09-02", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33384, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-09-02T06:23:17+03:30", "utc": "1937-09-02T02:53:17Z", "ms": -1020287203375.7147 }, "end": { "local": "1937-09-03T04:43:51+03:30", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-02T06:23:17+03:30", "utc": "1937-09-02T02:53:17Z", "ms": -1020287203375.7147 }, "end": { "local": "1937-09-03T04:43:51+03:30", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-09-01", "window": { "start": { "local": "1937-09-01T18:00:08+03:30", "utc": "1937-09-01T14:30:08Z", "ms": -1020331791946.9647 }, "end": { "local": "1937-09-01T19:28:34+03:30", "utc": "1937-09-01T15:58:34Z", "ms": -1020326486031.5542 } }, "covered_min": 0, "window_min": 88, "qualifies": false }, { "local_date": "1937-09-02", "window": { "start": { "local": "1937-09-02T17:58:43+03:30", "utc": "1937-09-02T14:28:43Z", "ms": -1020245476970.7295 }, "end": { "local": "1937-09-02T19:27:27+03:30", "utc": "1937-09-02T15:57:27Z", "ms": -1020240153419.3243 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:23 on Thu 2 Sep to 04:44 on Fri 3 Sep.", "fact": "1937-09-02T02:53:17Z → 1937-09-03T01:13:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:00–19:29 on the 1st, 17:59–19:27 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 88 minutes on the 1st and 89 of 89 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 33384 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Thursday 2 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": "1937-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-02", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Thursday 2 September. Trayodaśī runs from 06:23 on Thu 2 Sep to 04:44 on Fri 3 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-09-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28531, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-09-03T04:43:51+03:30", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "end": { "local": "1937-09-04T03:21:50+03:30", "utc": "1937-09-03T23:51:50Z", "ms": -1020125290295.7279 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-03T04:43:51+03:30", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "end": { "local": "1937-09-04T03:21:50+03:30", "utc": "1937-09-03T23:51:50Z", "ms": -1020125290295.7279 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-09-02", "window": { "start": { "local": "1937-09-02T17:58:43+03:30", "utc": "1937-09-02T14:28:43Z", "ms": -1020245476970.7295 }, "end": { "local": "1937-09-02T19:27:27+03:30", "utc": "1937-09-02T15:57:27Z", "ms": -1020240153419.3243 } }, "covered_min": 0, "window_min": 89, "qualifies": false }, { "local_date": "1937-09-03", "window": { "start": { "local": "1937-09-03T17:57:18+03:30", "utc": "1937-09-03T14:27:18Z", "ms": -1020159162487.5406 }, "end": { "local": "1937-09-03T19:26:19+03:30", "utc": "1937-09-03T15:56:19Z", "ms": -1020153821240.8683 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:44 on Fri 3 Sep to 03:22 on Sat 4 Sep.", "fact": "1937-09-03T01:13:51Z → 1937-09-03T23:51:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:59–19:27 on the 2nd, 17:57–19:26 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 89 minutes on the 2nd and 89 of 89 on the 3rd.", "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 28531 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Mashhad, 1937: Friday 3 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-03", "confidence": "determinate" } ], "quote": "In Mashhad, Aghora Caturdaśī 1937 falls on Friday 3 September. Caturdaśī runs from 04:44 on Fri 3 Sep to 03:22 on Sat 4 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/shivaratri?on=1937-09-03", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12403, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-09-03T04:43:51+03:30", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "end": { "local": "1937-09-04T03:21:50+03:30", "utc": "1937-09-03T23:51:50Z", "ms": -1020125290295.7279 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-03T04:43:51+03:30", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "end": { "local": "1937-09-04T03:21:50+03:30", "utc": "1937-09-03T23:51:50Z", "ms": -1020125290295.7279 } }, "kaala": "nishita", "days": [ { "local_date": "1937-09-02", "window": { "start": { "local": "1937-09-02T23:07:26+03:30", "utc": "1937-09-02T19:37:26Z", "ms": -1020226953652.9602 }, "end": { "local": "1937-09-02T23:55:26+03:30", "utc": "1937-09-02T20:25:26Z", "ms": -1020224073652.9602 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-09-03", "window": { "start": { "local": "1937-09-03T23:07:07+03:30", "utc": "1937-09-03T19:37:07Z", "ms": -1020140572812.5195 }, "end": { "local": "1937-09-03T23:55:07+03:30", "utc": "1937-09-03T20:25:07Z", "ms": -1020137692812.5195 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:44 on Fri 3 Sep to 03:22 on Sat 4 Sep.", "fact": "1937-09-03T01:13:51Z → 1937-09-03T23:51:50Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:07–23:55 on the 2nd, 23:07–23:55 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12403 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Friday 3 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": "1937-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-03", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Friday 3 September. Caturdaśī runs from 04:44 on Fri 3 Sep to 03:22 on Sat 4 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-09-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31358, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-09-05T02:23:26+03:30", "utc": "1937-09-04T22:53:26Z", "ms": -1020042393576.4163 }, "end": { "local": "1937-09-06T01:54:57+03:30", "utc": "1937-09-05T22:24:57Z", "ms": -1019957703486.5648 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-05T02:23:26+03:30", "utc": "1937-09-04T22:53:26Z", "ms": -1020042393576.4163 }, "end": { "local": "1937-09-06T01:54:57+03:30", "utc": "1937-09-05T22:24:57Z", "ms": -1019957703486.5648 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-05", "window": { "start": { "local": "1937-09-05T11:06:05+03:30", "utc": "1937-09-05T07:36:05Z", "ms": -1020011035442.2053 }, "end": { "local": "1937-09-05T11:54:05+03:30", "utc": "1937-09-05T08:24:05Z", "ms": -1020008155442.2053 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-06", "window": { "start": { "local": "1937-09-06T11:05:45+03:30", "utc": "1937-09-06T07:35:45Z", "ms": -1019924655310.6292 }, "end": { "local": "1937-09-06T11:53:45+03:30", "utc": "1937-09-06T08:23:45Z", "ms": -1019921775310.6292 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:23 on Sun 5 Sep to 01:55 on Mon 6 Sep.", "fact": "1937-09-04T22:53:26Z → 1937-09-05T22:24:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 5th, 11:06–11:54 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31358 s" }, { "step": "ruling", "text": "Rudra Vrata, Mashhad, 1937: Sunday 5 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-05", "confidence": "determinate" } ], "quote": "In Mashhad, Rudra Vrata 1937 falls on Sunday 5 September. Pratipadā runs from 02:23 on Sun 5 Sep to 01:55 on Mon 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29876, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-09-07T02:01:43+03:30", "utc": "1937-09-06T22:31:43Z", "ms": -1019870896879.2007 }, "end": { "local": "1937-09-08T02:47:08+03:30", "utc": "1937-09-07T23:17:08Z", "ms": -1019781771655.0399 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-07T02:01:43+03:30", "utc": "1937-09-06T22:31:43Z", "ms": -1019870896879.2007 }, "end": { "local": "1937-09-08T02:47:08+03:30", "utc": "1937-09-07T23:17:08Z", "ms": -1019781771655.0399 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-07", "window": { "start": { "local": "1937-09-07T11:05:25+03:30", "utc": "1937-09-07T07:35:25Z", "ms": -1019838275395.447 }, "end": { "local": "1937-09-07T11:53:25+03:30", "utc": "1937-09-07T08:23:25Z", "ms": -1019835395395.447 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-08", "window": { "start": { "local": "1937-09-08T11:05:04+03:30", "utc": "1937-09-08T07:35:04Z", "ms": -1019751895681.6042 }, "end": { "local": "1937-09-08T11:53:04+03:30", "utc": "1937-09-08T08:23:04Z", "ms": -1019749015681.6042 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:02 on Tue 7 Sep to 02:47 on Wed 8 Sep.", "fact": "1937-09-06T22:31:43Z → 1937-09-07T23:17:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 7th, 11:05–11:53 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 29876 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Mashhad, 1937: Tuesday 7 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "haritalika-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-07", "confidence": "determinate" } ], "quote": "In Mashhad, Haritālikā Vrata (Hartalika Teej) 1937 falls on Tuesday 7 September. Tṛtīyā runs from 02:02 on Tue 7 Sep to 02:47 on Wed 8 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24806, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-09-08T02:47:08+03:30", "utc": "1937-09-07T23:17:08Z", "ms": -1019781771655.0399 }, "end": { "local": "1937-09-09T04:11:18+03:30", "utc": "1937-09-09T00:41:18Z", "ms": -1019690322014.935 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-08T02:47:08+03:30", "utc": "1937-09-07T23:17:08Z", "ms": -1019781771655.0399 }, "end": { "local": "1937-09-09T04:11:18+03:30", "utc": "1937-09-09T00:41:18Z", "ms": -1019690322014.935 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-08", "window": { "start": { "local": "1937-09-08T11:05:04+03:30", "utc": "1937-09-08T07:35:04Z", "ms": -1019751895681.6042 }, "end": { "local": "1937-09-08T11:53:04+03:30", "utc": "1937-09-08T08:23:04Z", "ms": -1019749015681.6042 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-09", "window": { "start": { "local": "1937-09-09T11:04:44+03:30", "utc": "1937-09-09T07:34:44Z", "ms": -1019665516153.31 }, "end": { "local": "1937-09-09T11:52:44+03:30", "utc": "1937-09-09T08:22:44Z", "ms": -1019662636153.31 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:47 on Wed 8 Sep to 04:11 on Thu 9 Sep.", "fact": "1937-09-07T23:17:08Z → 1937-09-09T00:41:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 8th, 11:05–11:53 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24806 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Mashhad, 1937: Wednesday 8 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-08", "confidence": "determinate" } ], "quote": "In Mashhad, Gaṇeśa Caturthī 1937 falls on Wednesday 8 September. Caturthī runs from 02:47 on Wed 8 Sep to 04:11 on Thu 9 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17667, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-09-09T04:11:18+03:30", "utc": "1937-09-09T00:41:18Z", "ms": -1019690322014.935 }, "end": { "local": "1937-09-10T06:09:56+03:30", "utc": "1937-09-10T02:39:56Z", "ms": -1019596804133.8535 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-09T04:11:18+03:30", "utc": "1937-09-09T00:41:18Z", "ms": -1019690322014.935 }, "end": { "local": "1937-09-10T06:09:56+03:30", "utc": "1937-09-10T02:39:56Z", "ms": -1019596804133.8535 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-09", "window": { "start": { "local": "1937-09-09T11:04:44+03:30", "utc": "1937-09-09T07:34:44Z", "ms": -1019665516153.31 }, "end": { "local": "1937-09-09T11:52:44+03:30", "utc": "1937-09-09T08:22:44Z", "ms": -1019662636153.31 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-10", "window": { "start": { "local": "1937-09-10T11:04:23+03:30", "utc": "1937-09-10T07:34:23Z", "ms": -1019579136794.0432 }, "end": { "local": "1937-09-10T11:52:23+03:30", "utc": "1937-09-10T08:22:23Z", "ms": -1019576256794.0432 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 04:11 on Thu 9 Sep to 06:10 on Fri 10 Sep.", "fact": "1937-09-09T00:41:18Z → 1937-09-10T02:39:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 9th, 11:04–11:52 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 17667 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Mashhad, 1937: Thursday 9 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rishi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day" } ], "kaala": "madhyahna", "priority": "disputed", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-09", "confidence": "determinate" } ], "quote": "In Mashhad, Ṛṣi Pañcamī 1937 falls on Thursday 9 September. Pañcamī runs from 04:11 on Thu 9 Sep to 06:10 on Fri 10 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9009, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-09-10T06:09:56+03:30", "utc": "1937-09-10T02:39:56Z", "ms": -1019596804133.8535 }, "end": { "local": "1937-09-11T08:33:54+03:30", "utc": "1937-09-11T05:03:54Z", "ms": -1019501766441.2549 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-10T06:09:56+03:30", "utc": "1937-09-10T02:39:56Z", "ms": -1019596804133.8535 }, "end": { "local": "1937-09-11T08:33:54+03:30", "utc": "1937-09-11T05:03:54Z", "ms": -1019501766441.2549 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-10", "window": { "start": { "local": "1937-09-10T11:04:23+03:30", "utc": "1937-09-10T07:34:23Z", "ms": -1019579136794.0432 }, "end": { "local": "1937-09-10T11:52:23+03:30", "utc": "1937-09-10T08:22:23Z", "ms": -1019576256794.0432 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-11", "window": { "start": { "local": "1937-09-11T11:04:02+03:30", "utc": "1937-09-11T07:34:02Z", "ms": -1019492757586.5891 }, "end": { "local": "1937-09-11T11:52:02+03:30", "utc": "1937-09-11T08:22:02Z", "ms": -1019489877586.5891 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 06:10 on Fri 10 Sep to 08:34 on Sat 11 Sep.", "fact": "1937-09-10T02:39:56Z → 1937-09-11T05:03:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 10th, 11:04–11:52 on the 11th.", "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 10th and 0 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: paraviddha → only-day · margin 9009 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Mashhad, 1937: Friday 10 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi-bhadrapada", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Surya sasthi (paraviddha), Lolarka sasthi" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-10", "confidence": "determinate" } ], "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Bhādrapada) 1937 falls on Friday 10 September. Ṣaṣṭhī runs from 06:10 on Fri 10 Sep to 08:34 on Sat 11 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 361, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-09-11T08:33:54+03:30", "utc": "1937-09-11T05:03:54Z", "ms": -1019501766441.2549 }, "end": { "local": "1937-09-12T11:09:43+03:30", "utc": "1937-09-12T07:39:43Z", "ms": -1019406017318.5349 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-11T08:33:54+03:30", "utc": "1937-09-11T05:03:54Z", "ms": -1019501766441.2549 }, "end": { "local": "1937-09-12T11:09:43+03:30", "utc": "1937-09-12T07:39:43Z", "ms": -1019406017318.5349 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-11", "window": { "start": { "local": "1937-09-11T11:04:02+03:30", "utc": "1937-09-11T07:34:02Z", "ms": -1019492757586.5891 }, "end": { "local": "1937-09-11T11:52:02+03:30", "utc": "1937-09-11T08:22:02Z", "ms": -1019489877586.5891 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-12", "window": { "start": { "local": "1937-09-12T11:03:41+03:30", "utc": "1937-09-12T07:33:41Z", "ms": -1019406378513.1079 }, "end": { "local": "1937-09-12T11:51:41+03:30", "utc": "1937-09-12T08:21:41Z", "ms": -1019403498513.1079 } }, "covered_min": 6, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 08:34 on Sat 11 Sep to 11:10 on Sun 12 Sep.", "fact": "1937-09-11T05:03:54Z → 1937-09-12T07:39:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 11th, 11:04–11:52 on the 12th.", "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 11th and 6 of 48 on the 12th.", "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 361 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Mashhad, 1937: Saturday 11 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "muktabharana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Muktabharana vrata (purvaviddha), Lalita saptami (Bengal & Orissa)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-11", "confidence": "determinate" } ], "quote": "In Mashhad, Muktābharaṇa Vrata 1937 falls on Saturday 11 September. Saptamī runs from 08:34 on Sat 11 Sep to 11:10 on Sun 12 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 6 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-13", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 361, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-09-12T11:09:43+03:30", "utc": "1937-09-12T07:39:43Z", "ms": -1019406017318.5349 }, "end": { "local": "1937-09-13T13:41:21+03:30", "utc": "1937-09-13T10:11:21Z", "ms": -1019310519338.5941 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-12T11:09:43+03:30", "utc": "1937-09-12T07:39:43Z", "ms": -1019406017318.5349 }, "end": { "local": "1937-09-13T13:41:21+03:30", "utc": "1937-09-13T10:11:21Z", "ms": -1019310519338.5941 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-12", "window": { "start": { "local": "1937-09-12T11:03:41+03:30", "utc": "1937-09-12T07:33:41Z", "ms": -1019406378513.1079 }, "end": { "local": "1937-09-12T11:51:41+03:30", "utc": "1937-09-12T08:21:41Z", "ms": -1019403498513.1079 } }, "covered_min": 42, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-13", "window": { "start": { "local": "1937-09-13T11:03:20+03:30", "utc": "1937-09-13T07:33:20Z", "ms": -1019319999555.0704 }, "end": { "local": "1937-09-13T11:51:20+03:30", "utc": "1937-09-13T08:21:20Z", "ms": -1019317119555.0704 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:10 on Sun 12 Sep to 13:41 on Mon 13 Sep.", "fact": "1937-09-12T07:39:43Z → 1937-09-13T10:11:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 12th, 11:03–11:51 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 42 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 361 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Mashhad, 1937: Monday 13 September.", "fact": "confidence: boundary (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": "1937-09-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-13", "confidence": "boundary" } ], "quote": "In Mashhad, Rādhāṣṭamī 1937 falls on Monday 13 September. Aṣṭamī runs from 11:10 on Sun 12 Sep to 13:41 on Mon 13 Sep and covers all of madhyāhna that midday. It also reaches the previous midday for 42 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/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-09-16", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38902, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-09-15T17:30:51+03:30", "utc": "1937-09-15T14:00:51Z", "ms": -1019123949095.1306 }, "end": { "local": "1937-09-16T18:26:46+03:30", "utc": "1937-09-16T14:56:46Z", "ms": -1019034193792.5149 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-15T17:30:51+03:30", "utc": "1937-09-15T14:00:51Z", "ms": -1019123949095.1306 }, "end": { "local": "1937-09-16T18:26:46+03:30", "utc": "1937-09-16T14:56:46Z", "ms": -1019034193792.5149 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-09-16", "window": { "start": { "local": "1937-09-16T05:14:21+03:30", "utc": "1937-09-16T01:44:21Z", "ms": -1019081739234.8334 }, "end": { "local": "1937-09-16T05:14:21+03:30", "utc": "1937-09-16T01:44:21Z", "ms": -1019081739234.8334 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-09-17", "window": { "start": { "local": "1937-09-17T05:15:08+03:30", "utc": "1937-09-17T01:45:08Z", "ms": -1018995292228.8168 }, "end": { "local": "1937-09-17T05:15:08+03:30", "utc": "1937-09-17T01:45:08Z", "ms": -1018995292228.8168 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:31 on Wed 15 Sep to 18:27 on Thu 16 Sep.", "fact": "1937-09-15T14:00:51Z → 1937-09-16T14:56:46Z" }, { "step": "kaala", "text": "Sunrise is at 05:14 on the 16th and 05:15 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 38902 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Mashhad, 1937: Thursday 16 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": "1937-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-16", "confidence": "determinate" } ], "quote": "In Mashhad, Parivartanī Ekādaśī 1937 falls on Thursday 16 September. Ekādaśī runs from 17:31 on Wed 15 Sep to 18:27 on Thu 16 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-09-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23789, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-09-16T18:26:46+03:30", "utc": "1937-09-16T14:56:46Z", "ms": -1019034193792.5149 }, "end": { "local": "1937-09-17T18:37:03+03:30", "utc": "1937-09-17T15:07:03Z", "ms": -1018947176933.4634 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-16T18:26:46+03:30", "utc": "1937-09-16T14:56:46Z", "ms": -1019034193792.5149 }, "end": { "local": "1937-09-17T18:37:03+03:30", "utc": "1937-09-17T15:07:03Z", "ms": -1018947176933.4634 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-16", "window": { "start": { "local": "1937-09-16T11:02:17+03:30", "utc": "1937-09-16T07:32:17Z", "ms": -1019060863179.6476 }, "end": { "local": "1937-09-16T11:50:17+03:30", "utc": "1937-09-16T08:20:17Z", "ms": -1019057983179.6476 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-09-17", "window": { "start": { "local": "1937-09-17T11:01:56+03:30", "utc": "1937-09-17T07:31:56Z", "ms": -1018974484486.135 }, "end": { "local": "1937-09-17T11:49:56+03:30", "utc": "1937-09-17T08:19:56Z", "ms": -1018971604486.135 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:27 on Thu 16 Sep to 18:37 on Fri 17 Sep.", "fact": "1937-09-16T14:56:46Z → 1937-09-17T15:07:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:02–11:50 on the 16th, 11:02–11:50 on the 17th.", "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 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23789 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Mashhad, 1937: Friday 17 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vamana-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-17", "confidence": "determinate" } ], "quote": "In Mashhad, Vāmana Jayantī 1937 falls on Friday 17 September. Dvādaśī runs from 18:27 on Thu 16 Sep to 18:37 on Fri 17 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/pradosha-vrata?on=1937-09-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-17", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1658, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-09-17T18:37:03+03:30", "utc": "1937-09-17T15:07:03Z", "ms": -1018947176933.4634 }, "end": { "local": "1937-09-18T18:02:51+03:30", "utc": "1937-09-18T14:32:51Z", "ms": -1018862828536.0422 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-17T18:37:03+03:30", "utc": "1937-09-17T15:07:03Z", "ms": -1018947176933.4634 }, "end": { "local": "1937-09-18T18:02:51+03:30", "utc": "1937-09-18T14:32:51Z", "ms": -1018862828536.0422 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-09-17", "window": { "start": { "local": "1937-09-17T17:36:43+03:30", "utc": "1937-09-17T14:06:43Z", "ms": -1018950796743.4532 }, "end": { "local": "1937-09-17T19:09:57+03:30", "utc": "1937-09-17T15:39:57Z", "ms": -1018945203200.3053 } }, "covered_min": 33, "window_min": 93, "qualifies": true }, { "local_date": "1937-09-18", "window": { "start": { "local": "1937-09-18T17:35:14+03:30", "utc": "1937-09-18T14:05:14Z", "ms": -1018864486442.065 }, "end": { "local": "1937-09-18T19:08:45+03:30", "utc": "1937-09-18T15:38:45Z", "ms": -1018858874655.5217 } }, "covered_min": 28, "window_min": 94, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:37 on Fri 17 Sep to 18:03 on Sat 18 Sep.", "fact": "1937-09-17T15:07:03Z → 1937-09-18T14:32:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:37–19:10 on the 17th, 17:35–19:09 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 33 of 93 minutes on the 17th and 28 of 94 on the 18th.", "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 1658 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Friday 17 September.", "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": "1937-09-18", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-17", "confidence": "boundary" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Friday 17 September. Trayodaśī runs from 18:37 on Fri 17 Sep to 18:03 on Sat 18 Sep and covers 33 of 93 minutes of pradoṣa that evening. It also reaches the next evening for 28 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/mashhad/festivals/1937/pradosha-vrata?on=1937-09-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32690, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-09-18T18:02:51+03:30", "utc": "1937-09-18T14:32:51Z", "ms": -1018862828536.0422 }, "end": { "local": "1937-09-19T16:48:57+03:30", "utc": "1937-09-19T13:18:57Z", "ms": -1018780863327.4735 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-18T18:02:51+03:30", "utc": "1937-09-18T14:32:51Z", "ms": -1018862828536.0422 }, "end": { "local": "1937-09-19T16:48:57+03:30", "utc": "1937-09-19T13:18:57Z", "ms": -1018780863327.4735 } }, "kaala": "udaya-3", "days": [ { "local_date": "1937-09-18", "window": { "start": { "local": "1937-09-18T05:15:55+03:30", "utc": "1937-09-18T01:45:55Z", "ms": -1018908845169.8439 }, "end": { "local": "1937-09-18T07:43:47+03:30", "utc": "1937-09-18T04:13:47Z", "ms": -1018899973424.2881 } }, "covered_min": 0, "window_min": 148, "qualifies": false }, { "local_date": "1937-09-19", "window": { "start": { "local": "1937-09-19T05:16:42+03:30", "utc": "1937-09-19T01:46:42Z", "ms": -1018822398042.991 }, "end": { "local": "1937-09-19T07:44:06+03:30", "utc": "1937-09-19T04:14:06Z", "ms": -1018813553672.3494 } }, "covered_min": 147, "window_min": 147, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:03 on Sat 18 Sep to 16:49 on Sun 19 Sep.", "fact": "1937-09-18T14:32:51Z → 1937-09-19T13:18:57Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:16–07:44 on the 18th, 05:17–07:44 on the 19th.", "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 148 minutes on the 18th and 147 of 147 on the 19th.", "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 32690 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Mashhad, 1937: Sunday 19 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": "1937-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-19", "confidence": "determinate" } ], "quote": "In Mashhad, Ananta Caturdaśī 1937 falls on Sunday 19 September. Caturdaśī runs from 18:03 on Sat 18 Sep to 16:49 on Sun 19 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-09-23", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36298, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-09-23T07:49:44+03:30", "utc": "1937-09-23T04:19:44Z", "ms": -1018467616466.2965 }, "end": { "local": "1937-09-24T05:14:04+03:30", "utc": "1937-09-24T01:44:04Z", "ms": -1018390555873.8285 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-23T07:49:44+03:30", "utc": "1937-09-23T04:19:44Z", "ms": -1018467616466.2965 }, "end": { "local": "1937-09-24T05:14:04+03:30", "utc": "1937-09-24T01:44:04Z", "ms": -1018390555873.8285 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-09-22", "window": { "start": { "local": "1937-09-22T18:26:20+03:30", "utc": "1937-09-22T14:56:20Z", "ms": -1018515819522.2672 }, "end": { "local": "1937-09-22T18:26:20+03:30", "utc": "1937-09-22T14:56:20Z", "ms": -1018515819522.2672 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-09-23", "window": { "start": { "local": "1937-09-23T19:09:06+03:30", "utc": "1937-09-23T15:39:06Z", "ms": -1018426853631.0023 }, "end": { "local": "1937-09-23T19:09:06+03:30", "utc": "1937-09-23T15:39:06Z", "ms": -1018426853631.0023 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:50 on Thu 23 Sep to 05:14 on Fri 24 Sep.", "fact": "1937-09-23T04:19:44Z → 1937-09-24T01:44:04Z" }, { "step": "kaala", "text": "Moonrise is at 18:26 on the 22nd and 19:09 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 22nd and is on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36298 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Thursday 23 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": "1937-09-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-23", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Thursday 23 September. Caturthī runs from 07:50 on Thu 23 Sep to 05:14 on Fri 24 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-09-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12569, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-09-25T02:43:20+03:30", "utc": "1937-09-24T23:13:20Z", "ms": -1018313199907.0742 }, "end": { "local": "1937-09-26T00:21:53+03:30", "utc": "1937-09-25T20:51:53Z", "ms": -1018235287276.9434 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-25T02:43:20+03:30", "utc": "1937-09-24T23:13:20Z", "ms": -1018313199907.0742 }, "end": { "local": "1937-09-26T00:21:53+03:30", "utc": "1937-09-25T20:51:53Z", "ms": -1018235287276.9434 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-09-24", "window": { "start": { "local": "1937-09-24T19:57:39+03:30", "utc": "1937-09-24T16:27:39Z", "ms": -1018337541431.0322 }, "end": { "local": "1937-09-24T19:57:39+03:30", "utc": "1937-09-24T16:27:39Z", "ms": -1018337541431.0322 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-09-25", "window": { "start": { "local": "1937-09-25T20:52:24+03:30", "utc": "1937-09-25T17:22:24Z", "ms": -1018247856189.1729 }, "end": { "local": "1937-09-25T20:52:24+03:30", "utc": "1937-09-25T17:22:24Z", "ms": -1018247856189.1729 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:43 on Sat 25 Sep to 00:22 on Sun 26 Sep.", "fact": "1937-09-24T23:13:20Z → 1937-09-25T20:51:53Z" }, { "step": "kaala", "text": "Moonrise is at 19:58 on the 24th and 20:52 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 24th and is on the 25th.", "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 12569 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Mashhad, 1937: Saturday 25 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-25", "confidence": "determinate" } ], "quote": "In Mashhad, Candra Ṣaṣṭhī 1937 falls on Saturday 25 September. Ṣaṣṭhī runs from 02:43 on Sat 25 Sep to 00:22 on Sun 26 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-26", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1200, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-09-26T22:12:41+03:30", "utc": "1937-09-26T18:42:41Z", "ms": -1018156638863.3011 }, "end": { "local": "1937-09-27T20:17:37+03:30", "utc": "1937-09-27T16:47:37Z", "ms": -1018077142651.9767 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-26T22:12:41+03:30", "utc": "1937-09-26T18:42:41Z", "ms": -1018156638863.3011 }, "end": { "local": "1937-09-27T20:17:37+03:30", "utc": "1937-09-27T16:47:37Z", "ms": -1018077142651.9767 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-09-26", "window": { "start": { "local": "1937-09-26T21:52:41+03:30", "utc": "1937-09-26T18:22:41Z", "ms": -1018157838993.2931 }, "end": { "local": "1937-09-26T21:52:41+03:30", "utc": "1937-09-26T18:22:41Z", "ms": -1018157838993.2931 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-09-27", "window": { "start": { "local": "1937-09-27T22:56:44+03:30", "utc": "1937-09-27T19:26:44Z", "ms": -1018067596323.3663 }, "end": { "local": "1937-09-27T22:56:44+03:30", "utc": "1937-09-27T19:26:44Z", "ms": -1018067596323.3663 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 22:13 on Sun 26 Sep to 20:18 on Mon 27 Sep.", "fact": "1937-09-26T18:42:41Z → 1937-09-27T16:47:37Z" }, { "step": "kaala", "text": "Moonrise is at 21:53 on the 26th and 22:57 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 1200 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Mashhad, 1937: Sunday 26 September.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "1937-09-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-26", "confidence": "boundary" } ], "quote": "In Mashhad, Mahālakṣmī Vrata Samāpana 1937 falls on Sunday 26 September. Aṣṭamī runs from 22:13 on Sun 26 Sep to 20:18 on Mon 27 Sep, and is current at moonrise on neither day.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4773, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-09-26T22:12:41+03:30", "utc": "1937-09-26T18:42:41Z", "ms": -1018156638863.3011 }, "end": { "local": "1937-09-27T20:17:37+03:30", "utc": "1937-09-27T16:47:37Z", "ms": -1018077142651.9767 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-26T22:12:41+03:30", "utc": "1937-09-26T18:42:41Z", "ms": -1018156638863.3011 }, "end": { "local": "1937-09-27T20:17:37+03:30", "utc": "1937-09-27T16:47:37Z", "ms": -1018077142651.9767 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-09-26", "window": { "start": { "local": "1937-09-26T17:23:17+03:30", "utc": "1937-09-26T13:53:17Z", "ms": -1018174003160.3079 }, "end": { "local": "1937-09-26T18:59:15+03:30", "utc": "1937-09-26T15:29:15Z", "ms": -1018168244944.5253 } }, "covered_min": 0, "window_min": 96, "qualifies": false }, { "local_date": "1937-09-27", "window": { "start": { "local": "1937-09-27T17:21:48+03:30", "utc": "1937-09-27T13:51:48Z", "ms": -1018087692166.4321 }, "end": { "local": "1937-09-27T18:58:04+03:30", "utc": "1937-09-27T15:28:04Z", "ms": -1018081915617.7971 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 22:13 on Sun 26 Sep to 20:18 on Mon 27 Sep.", "fact": "1937-09-26T18:42:41Z → 1937-09-27T16:47:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:23–18:59 on the 26th, 17:22–18:58 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 0 of 96 minutes on the 26th and 96 of 96 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4773 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Mashhad, 1937: Monday 27 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": "1937-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-27", "confidence": "determinate" } ], "quote": "In Mashhad, Jitāṣṭamī (Jitiya) 1937 falls on Monday 27 September. Aṣṭamī runs from 22:13 on Sun 26 Sep to 20:18 on Mon 27 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-09-30", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38576, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-09-29T17:14:22+03:30", "utc": "1937-09-29T13:44:22Z", "ms": -1017915337999.3219 }, "end": { "local": "1937-09-30T16:08:25+03:30", "utc": "1937-09-30T12:38:25Z", "ms": -1017832894598.2101 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-29T17:14:22+03:30", "utc": "1937-09-29T13:44:22Z", "ms": -1017915337999.3219 }, "end": { "local": "1937-09-30T16:08:25+03:30", "utc": "1937-09-30T12:38:25Z", "ms": -1017832894598.2101 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-09-29", "window": { "start": { "local": "1937-09-29T05:24:41+03:30", "utc": "1937-09-29T01:54:41Z", "ms": -1017957919340.4355 }, "end": { "local": "1937-09-29T05:24:41+03:30", "utc": "1937-09-29T01:54:41Z", "ms": -1017957919340.4355 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-09-30", "window": { "start": { "local": "1937-09-30T05:25:30+03:30", "utc": "1937-09-30T01:55:30Z", "ms": -1017871470399.1722 }, "end": { "local": "1937-09-30T05:25:30+03:30", "utc": "1937-09-30T01:55:30Z", "ms": -1017871470399.1722 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:14 on Wed 29 Sep to 16:08 on Thu 30 Sep.", "fact": "1937-09-29T13:44:22Z → 1937-09-30T12:38:25Z" }, { "step": "kaala", "text": "Sunrise is at 05:25 on the 29th and 05:25 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38576 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Mashhad, 1937: Thursday 30 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": "1937-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-30", "confidence": "determinate" } ], "quote": "In Mashhad, Indirā Ekādaśī 1937 falls on Thursday 30 September. Ekādaśī runs from 17:14 on Wed 29 Sep to 16:08 on Thu 30 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-09-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-10-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6838, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-10-01T15:21:56+03:30", "utc": "1937-10-01T11:51:56Z", "ms": -1017749284049.9578 }, "end": { "local": "1937-10-02T14:57:32+03:30", "utc": "1937-10-02T11:27:32Z", "ms": -1017664347996.8364 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-01T15:21:56+03:30", "utc": "1937-10-01T11:51:56Z", "ms": -1017749284049.9578 }, "end": { "local": "1937-10-02T14:57:32+03:30", "utc": "1937-10-02T11:27:32Z", "ms": -1017664347996.8364 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-01", "window": { "start": { "local": "1937-10-01T17:15:54+03:30", "utc": "1937-10-01T13:45:54Z", "ms": -1017742445566.0768 }, "end": { "local": "1937-10-01T18:53:24+03:30", "utc": "1937-10-01T15:23:24Z", "ms": -1017736595729.9209 } }, "covered_min": 97, "window_min": 97, "qualifies": true }, { "local_date": "1937-10-02", "window": { "start": { "local": "1937-10-02T17:14:27+03:30", "utc": "1937-10-02T13:44:27Z", "ms": -1017656133117.7797 }, "end": { "local": "1937-10-02T18:52:15+03:30", "utc": "1937-10-02T15:22:15Z", "ms": -1017650264984.4534 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:22 on Fri 1 Oct to 14:58 on Sat 2 Oct.", "fact": "1937-10-01T11:51:56Z → 1937-10-02T11:27:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:16–18:53 on the 1st, 17:14–18:52 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 97 of 97 minutes on the 1st and 0 of 98 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6838 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Friday 1 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": "1937-10-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-01", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Friday 1 October. Trayodaśī runs from 15:22 on Fri 1 Oct to 14:58 on Sat 2 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-10-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-10-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28709, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-10-02T14:57:32+03:30", "utc": "1937-10-02T11:27:32Z", "ms": -1017664347996.8364 }, "end": { "local": "1937-10-03T14:58:24+03:30", "utc": "1937-10-03T11:28:24Z", "ms": -1017577895584.8766 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-02T14:57:32+03:30", "utc": "1937-10-02T11:27:32Z", "ms": -1017664347996.8364 }, "end": { "local": "1937-10-03T14:58:24+03:30", "utc": "1937-10-03T11:28:24Z", "ms": -1017577895584.8766 } }, "kaala": "nishita", "days": [ { "local_date": "1937-10-02", "window": { "start": { "local": "1937-10-02T22:57:12+03:30", "utc": "1937-10-02T19:27:12Z", "ms": -1017635567617.8062 }, "end": { "local": "1937-10-02T23:45:12+03:30", "utc": "1937-10-02T20:15:12Z", "ms": -1017632687617.8062 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-10-03", "window": { "start": { "local": "1937-10-03T22:56:54+03:30", "utc": "1937-10-03T19:26:54Z", "ms": -1017549186238.7539 }, "end": { "local": "1937-10-03T23:44:54+03:30", "utc": "1937-10-03T20:14:54Z", "ms": -1017546306238.7539 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:58 on Sat 2 Oct to 14:58 on Sun 3 Oct.", "fact": "1937-10-02T11:27:32Z → 1937-10-03T11:28:24Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:57–23:45 on the 2nd, 22:57–23:45 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "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 28709 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Saturday 2 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": "1937-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-02", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Saturday 2 October. Caturdaśī runs from 14:58 on Sat 2 Oct to 14:58 on Sun 3 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-10-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 385, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1937-10-03T14:58:24+03:30", "utc": "1937-10-03T11:28:24Z", "ms": -1017577895584.8766 }, "end": { "local": "1937-10-04T15:27:47+03:30", "utc": "1937-10-04T11:57:47Z", "ms": -1017489733348.4623 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-03T14:58:24+03:30", "utc": "1937-10-03T11:28:24Z", "ms": -1017577895584.8766 }, "end": { "local": "1937-10-04T15:27:47+03:30", "utc": "1937-10-04T11:57:47Z", "ms": -1017489733348.4623 } }, "kaala": "aparahna", "days": [ { "local_date": "1937-10-03", "window": { "start": { "local": "1937-10-03T12:30:59+03:30", "utc": "1937-10-03T09:00:59Z", "ms": -1017586741024.2788 }, "end": { "local": "1937-10-03T14:51:59+03:30", "utc": "1937-10-03T11:21:59Z", "ms": -1017578280659.7607 } }, "covered_min": 0, "window_min": 141, "qualifies": false }, { "local_date": "1937-10-04", "window": { "start": { "local": "1937-10-04T12:30:27+03:30", "utc": "1937-10-04T09:00:27Z", "ms": -1017500373115.7491 }, "end": { "local": "1937-10-04T14:51:00+03:30", "utc": "1937-10-04T11:21:00Z", "ms": -1017491940093.5771 } }, "covered_min": 141, "window_min": 141, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 14:58 on Sun 3 Oct to 15:28 on Mon 4 Oct.", "fact": "1937-10-03T11:28:24Z → 1937-10-04T11:57:47Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 12:31–14:52 on the 3rd, 12:30–14:51 on the 4th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 0 of 141 minutes on the 3rd and 141 of 141 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 385 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Mashhad, 1937: Monday 4 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-04", "confidence": "determinate" } ], "quote": "In Mashhad, Mahālaya Amāvāsyā 1937 falls on Monday 4 October. Amāvasyā runs from 14:58 on Sun 3 Oct to 15:28 on Mon 4 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13416, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-10-04T15:27:47+03:30", "utc": "1937-10-04T11:57:47Z", "ms": -1017489733348.4623 }, "end": { "local": "1937-10-05T16:28:08+03:30", "utc": "1937-10-05T12:58:08Z", "ms": -1017399712183.2717 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-04T15:27:47+03:30", "utc": "1937-10-04T11:57:47Z", "ms": -1017489733348.4623 }, "end": { "local": "1937-10-05T16:28:08+03:30", "utc": "1937-10-05T12:58:08Z", "ms": -1017399712183.2717 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-10-04", "window": { "start": { "local": "1937-10-04T10:56:10+03:30", "utc": "1937-10-04T07:26:10Z", "ms": -1017506029626.8351 }, "end": { "local": "1937-10-04T11:44:10+03:30", "utc": "1937-10-04T08:14:10Z", "ms": -1017503149626.8351 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-10-05", "window": { "start": { "local": "1937-10-05T10:55:52+03:30", "utc": "1937-10-05T07:25:52Z", "ms": -1017419647700.69 }, "end": { "local": "1937-10-05T11:43:52+03:30", "utc": "1937-10-05T08:13:52Z", "ms": -1017416767700.69 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 15:28 on Mon 4 Oct to 16:28 on Tue 5 Oct.", "fact": "1937-10-04T11:57:47Z → 1937-10-05T12:58:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:56–11:44 on the 4th, 10:56–11:44 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13416 s" }, { "step": "ruling", "text": "Navarātrārambha, Mashhad, 1937: Tuesday 5 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-05", "confidence": "determinate" } ], "quote": "In Mashhad, Navarātrārambha (Navratri) 1937 falls on Tuesday 5 October. Pratipadā runs from 15:28 on Mon 4 Oct to 16:28 on Tue 5 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-10-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29919, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-10-07T20:01:56+03:30", "utc": "1937-10-07T16:31:56Z", "ms": -1017214083505.9772 }, "end": { "local": "1937-10-08T22:27:33+03:30", "utc": "1937-10-08T18:57:33Z", "ms": -1017118947061.8578 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-07T20:01:56+03:30", "utc": "1937-10-07T16:31:56Z", "ms": -1017214083505.9772 }, "end": { "local": "1937-10-08T22:27:33+03:30", "utc": "1937-10-08T18:57:33Z", "ms": -1017118947061.8578 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-10-07", "window": { "start": { "local": "1937-10-07T10:55:17+03:30", "utc": "1937-10-07T07:25:17Z", "ms": -1017246882742.7446 }, "end": { "local": "1937-10-07T11:43:17+03:30", "utc": "1937-10-07T08:13:17Z", "ms": -1017244002742.7446 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-10-08", "window": { "start": { "local": "1937-10-08T10:55:00+03:30", "utc": "1937-10-08T07:25:00Z", "ms": -1017160499677.4427 }, "end": { "local": "1937-10-08T11:43:00+03:30", "utc": "1937-10-08T08:13:00Z", "ms": -1017157619677.4427 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:02 on Thu 7 Oct to 22:28 on Fri 8 Oct.", "fact": "1937-10-07T16:31:56Z → 1937-10-08T18:57:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:55–11:43 on the 7th, 10:55–11:43 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29919 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Friday 8 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": "1937-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-08", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Friday 8 October. Caturthī runs from 20:02 on Thu 7 Oct to 22:28 on Fri 8 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-10-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 442, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-10-11T03:47:41+03:30", "utc": "1937-10-11T00:17:41Z", "ms": -1016926938522.7854 }, "end": { "local": "1937-10-12T06:13:54+03:30", "utc": "1937-10-12T02:43:54Z", "ms": -1016831766404.6862 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-11T03:47:41+03:30", "utc": "1937-10-11T00:17:41Z", "ms": -1016926938522.7854 }, "end": { "local": "1937-10-12T06:13:54+03:30", "utc": "1937-10-12T02:43:54Z", "ms": -1016831766404.6862 } }, "kaala": "udaya-1", "days": [ { "local_date": "1937-10-11", "window": { "start": { "local": "1937-10-11T05:34:45+03:30", "utc": "1937-10-11T02:04:45Z", "ms": -1016920514913.6926 }, "end": { "local": "1937-10-11T06:20:33+03:30", "utc": "1937-10-11T02:50:33Z", "ms": -1016917767316.0062 } }, "covered_min": 46, "window_min": 46, "qualifies": true }, { "local_date": "1937-10-12", "window": { "start": { "local": "1937-10-12T05:35:37+03:30", "utc": "1937-10-12T02:05:37Z", "ms": -1016834062706.2023 }, "end": { "local": "1937-10-12T06:21:16+03:30", "utc": "1937-10-12T02:51:16Z", "ms": -1016831324093.0022 } }, "covered_min": 38, "window_min": 46, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:48 on Mon 11 Oct to 06:14 on Tue 12 Oct.", "fact": "1937-10-11T00:17:41Z → 1937-10-12T02:43:54Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:35–06:21 on the 11th, 05:36–06:21 on the 12th.", "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 46 of 46 minutes on the 11th and 38 of 46 on the 12th.", "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 442 s" }, { "step": "ruling", "text": "Durgā Saptamī, Mashhad, 1937: Monday 11 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise" } ], "kaala": "udaya-1", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-11", "confidence": "determinate" } ], "quote": "In Mashhad, Durgā Saptamī 1937 falls on Monday 11 October. Saptamī runs from 03:48 on Mon 11 Oct to 06:14 on Tue 12 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9746, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-10-12T06:13:54+03:30", "utc": "1937-10-12T02:43:54Z", "ms": -1016831766404.6862 }, "end": { "local": "1937-10-13T08:11:16+03:30", "utc": "1937-10-13T04:41:16Z", "ms": -1016738323983.7999 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-12T06:13:54+03:30", "utc": "1937-10-12T02:43:54Z", "ms": -1016831766404.6862 }, "end": { "local": "1937-10-13T08:11:16+03:30", "utc": "1937-10-13T04:41:16Z", "ms": -1016738323983.7999 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-10-12", "window": { "start": { "local": "1937-10-12T10:53:57+03:30", "utc": "1937-10-12T07:23:57Z", "ms": -1016814963107.2013 }, "end": { "local": "1937-10-12T11:41:57+03:30", "utc": "1937-10-12T08:11:57Z", "ms": -1016812083107.2013 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-10-13", "window": { "start": { "local": "1937-10-13T10:53:42+03:30", "utc": "1937-10-13T07:23:42Z", "ms": -1016728577799.5349 }, "end": { "local": "1937-10-13T11:41:42+03:30", "utc": "1937-10-13T08:11:42Z", "ms": -1016725697799.5349 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 06:14 on Tue 12 Oct to 08:11 on Wed 13 Oct.", "fact": "1937-10-12T02:43:54Z → 1937-10-13T04:41:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:54–11:42 on the 12th, 10:54–11:42 on the 13th.", "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 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9746 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Mashhad, 1937: Tuesday 12 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Mahastami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-12", "confidence": "determinate" } ], "quote": "In Mashhad, Mahāṣṭamī (Durga Ashtami) 1937 falls on Tuesday 12 October. Aṣṭamī runs from 06:14 on Tue 12 Oct to 08:11 on Wed 13 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5122, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1937-10-13T08:11:16+03:30", "utc": "1937-10-13T04:41:16Z", "ms": -1016738323983.7999 }, "end": { "local": "1937-10-14T09:28:06+03:30", "utc": "1937-10-14T05:58:06Z", "ms": -1016647313892.7218 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-13T08:11:16+03:30", "utc": "1937-10-13T04:41:16Z", "ms": -1016738323983.7999 }, "end": { "local": "1937-10-14T09:28:06+03:30", "utc": "1937-10-14T05:58:06Z", "ms": -1016647313892.7218 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-10-13", "window": { "start": { "local": "1937-10-13T10:53:42+03:30", "utc": "1937-10-13T07:23:42Z", "ms": -1016728577799.5349 }, "end": { "local": "1937-10-13T11:41:42+03:30", "utc": "1937-10-13T08:11:42Z", "ms": -1016725697799.5349 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-10-14", "window": { "start": { "local": "1937-10-14T10:53:28+03:30", "utc": "1937-10-14T07:23:28Z", "ms": -1016642191989.8938 }, "end": { "local": "1937-10-14T11:41:28+03:30", "utc": "1937-10-14T08:11:28Z", "ms": -1016639311989.8938 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 08:11 on Wed 13 Oct to 09:28 on Thu 14 Oct.", "fact": "1937-10-13T04:41:16Z → 1937-10-14T05:58:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:54–11:42 on the 13th, 10:53–11:41 on the 14th.", "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 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5122 s" }, { "step": "ruling", "text": "Mahānavamī, Mashhad, 1937: Wednesday 13 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahanavami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Mahanavami (purvaviddha) (In Bengal it is observed as paraviddha covering one muhurta from sunrise)." } ], "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.", "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-13", "confidence": "determinate" } ], "quote": "In Mashhad, Mahānavamī 1937 falls on Wednesday 13 October. Navamī runs from 08:11 on Wed 13 Oct to 09:28 on Thu 14 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13843, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1937-10-14T09:28:06+03:30", "utc": "1937-10-14T05:58:06Z", "ms": -1016647313892.7218 }, "end": { "local": "1937-10-15T09:57:07+03:30", "utc": "1937-10-15T06:27:07Z", "ms": -1016559172593.4556 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1937-10-14T09:28:06+03:30", "utc": "1937-10-14T05:58:06Z", "ms": -1016647313892.7218 }, "end": { "local": "1937-10-15T00:20:03+03:30", "utc": "1937-10-14T20:50:03Z", "ms": -1016593796860.2607 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1937-10-13T22:55:39+03:30", "utc": "1937-10-13T19:25:39Z", "ms": -1016685261358.6554 }, "end": { "local": "1937-10-15T00:20:03+03:30", "utc": "1937-10-14T20:50:03Z", "ms": -1016593796860.2607 } } }, "kaala": "daytime", "days": [ { "local_date": "1937-10-14", "window": { "start": { "local": "1937-10-14T05:37:23+03:30", "utc": "1937-10-14T02:07:23Z", "ms": -1016661157360.1549 }, "end": { "local": "1937-10-14T16:57:33+03:30", "utc": "1937-10-14T13:27:33Z", "ms": -1016620346619.6328 } }, "covered_min": 449, "window_min": 680, "qualifies": true }, { "local_date": "1937-10-15", "window": { "start": { "local": "1937-10-15T05:38:16+03:30", "utc": "1937-10-15T02:08:16Z", "ms": -1016574704210.73 }, "end": { "local": "1937-10-15T16:56:13+03:30", "utc": "1937-10-15T13:26:13Z", "ms": -1016534027108.8464 } }, "covered_min": 0, "window_min": 678, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 09:28 on Thu 14 Oct to 09:57 on Fri 15 Oct, and Śravaṇa from 22:56 on Wed 13 Oct to 00:20 on Fri 15 Oct. They are together from 09:28 on Thu 14 Oct to 00:20 on Fri 15 Oct.", "fact": "1937-10-14T05:58:06Z → 1937-10-14T20:50:03Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 05:37–16:58 on the 14th, 05:38–16:56 on the 15th.", "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 449 of 680 minutes on the 14th and 0 of 678 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13843 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Mashhad, 1937: Thursday 14 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vijaya-dashami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara." } ], "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day", "conjunction": { "nakshatra": "Śravaṇa", "kaala": "daytime" } }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-14", "confidence": "determinate" } ], "quote": "In Mashhad, Vijayā Daśamī (Dussehra) 1937 falls on Thursday 14 October. Daśamī runs from 09:28 on Thu 14 Oct to 09:57 on Fri 15 Oct and is with Śravaṇa in the day time that day, for 449 minutes.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-10-16", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14210, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-10-15T09:57:07+03:30", "utc": "1937-10-15T06:27:07Z", "ms": -1016559172593.4556 }, "end": { "local": "1937-10-16T09:35:59+03:30", "utc": "1937-10-16T06:05:59Z", "ms": -1016474040541.784 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-15T09:57:07+03:30", "utc": "1937-10-15T06:27:07Z", "ms": -1016559172593.4556 }, "end": { "local": "1937-10-16T09:35:59+03:30", "utc": "1937-10-16T06:05:59Z", "ms": -1016474040541.784 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-10-15", "window": { "start": { "local": "1937-10-15T05:38:16+03:30", "utc": "1937-10-15T02:08:16Z", "ms": -1016574704210.73 }, "end": { "local": "1937-10-15T05:38:16+03:30", "utc": "1937-10-15T02:08:16Z", "ms": -1016574704210.73 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-10-16", "window": { "start": { "local": "1937-10-16T05:39:09+03:30", "utc": "1937-10-16T02:09:09Z", "ms": -1016488250736.1436 }, "end": { "local": "1937-10-16T05:39:09+03:30", "utc": "1937-10-16T02:09:09Z", "ms": -1016488250736.1436 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:57 on Fri 15 Oct to 09:36 on Sat 16 Oct.", "fact": "1937-10-15T06:27:07Z → 1937-10-16T06:05:59Z" }, { "step": "kaala", "text": "Sunrise is at 05:38 on the 15th and 05:39 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 15th and is on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14210 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Mashhad, 1937: Saturday 16 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-16", "confidence": "determinate" } ], "quote": "In Mashhad, Pāśāṅkuśā Ekādaśī 1937 falls on Saturday 16 October. Ekādaśī runs from 09:57 on Fri 15 Oct to 09:36 on Sat 16 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-10-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-10-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30404, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-10-17T08:26:50+03:30", "utc": "1937-10-17T04:56:50Z", "ms": -1016391790054.2931 }, "end": { "local": "1937-10-18T06:35:14+03:30", "utc": "1937-10-18T03:05:14Z", "ms": -1016312086296.1594 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-17T08:26:50+03:30", "utc": "1937-10-17T04:56:50Z", "ms": -1016391790054.2931 }, "end": { "local": "1937-10-18T06:35:14+03:30", "utc": "1937-10-18T03:05:14Z", "ms": -1016312086296.1594 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-17", "window": { "start": { "local": "1937-10-17T16:53:34+03:30", "utc": "1937-10-17T13:23:34Z", "ms": -1016361385793.5402 }, "end": { "local": "1937-10-17T18:35:53+03:30", "utc": "1937-10-17T15:05:53Z", "ms": -1016355246725.9045 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1937-10-18", "window": { "start": { "local": "1937-10-18T16:52:16+03:30", "utc": "1937-10-18T13:22:16Z", "ms": -1016275063922.6501 }, "end": { "local": "1937-10-18T18:34:53+03:30", "utc": "1937-10-18T15:04:53Z", "ms": -1016268907172.554 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:27 on Sun 17 Oct to 06:35 on Mon 18 Oct.", "fact": "1937-10-17T04:56:50Z → 1937-10-18T03:05:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:54–18:36 on the 17th, 16:52–18:35 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 102 of 102 minutes on the 17th and 0 of 103 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30404 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Sunday 17 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": "1937-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-17", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Sunday 17 October. Trayodaśī runs from 08:27 on Sun 17 Oct to 06:35 on Mon 18 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-10-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10725, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-10-22T15:44:43+03:30", "utc": "1937-10-22T12:14:43Z", "ms": -1015933517469.9591 }, "end": { "local": "1937-10-23T12:43:36+03:30", "utc": "1937-10-23T09:13:36Z", "ms": -1015857984004.6055 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-22T15:44:43+03:30", "utc": "1937-10-22T12:14:43Z", "ms": -1015933517469.9591 }, "end": { "local": "1937-10-23T12:43:36+03:30", "utc": "1937-10-23T09:13:36Z", "ms": -1015857984004.6055 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-10-22", "window": { "start": { "local": "1937-10-22T18:43:28+03:30", "utc": "1937-10-22T15:13:28Z", "ms": -1015922792008.5492 }, "end": { "local": "1937-10-22T18:43:28+03:30", "utc": "1937-10-22T15:13:28Z", "ms": -1015922792008.5492 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-10-23", "window": { "start": { "local": "1937-10-23T19:43:57+03:30", "utc": "1937-10-23T16:13:57Z", "ms": -1015832762854.6616 }, "end": { "local": "1937-10-23T19:43:57+03:30", "utc": "1937-10-23T16:13:57Z", "ms": -1015832762854.6616 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:45 on Fri 22 Oct to 12:44 on Sat 23 Oct.", "fact": "1937-10-22T12:14:43Z → 1937-10-23T09:13:36Z" }, { "step": "kaala", "text": "Moonrise is at 18:43 on the 22nd and 19:44 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10725 s" }, { "step": "ruling", "text": "Karaka Caturthī, Mashhad, 1937: Friday 22 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": "1937-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-22", "confidence": "determinate" } ], "quote": "In Mashhad, Karaka Caturthī (Karwa Chauth) 1937 falls on Friday 22 October. Caturthī runs from 15:45 on Fri 22 Oct to 12:44 on Sat 23 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-10-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10725, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-10-22T15:44:43+03:30", "utc": "1937-10-22T12:14:43Z", "ms": -1015933517469.9591 }, "end": { "local": "1937-10-23T12:43:36+03:30", "utc": "1937-10-23T09:13:36Z", "ms": -1015857984004.6055 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-22T15:44:43+03:30", "utc": "1937-10-22T12:14:43Z", "ms": -1015933517469.9591 }, "end": { "local": "1937-10-23T12:43:36+03:30", "utc": "1937-10-23T09:13:36Z", "ms": -1015857984004.6055 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-10-22", "window": { "start": { "local": "1937-10-22T18:43:28+03:30", "utc": "1937-10-22T15:13:28Z", "ms": -1015922792008.5492 }, "end": { "local": "1937-10-22T18:43:28+03:30", "utc": "1937-10-22T15:13:28Z", "ms": -1015922792008.5492 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-10-23", "window": { "start": { "local": "1937-10-23T19:43:57+03:30", "utc": "1937-10-23T16:13:57Z", "ms": -1015832762854.6616 }, "end": { "local": "1937-10-23T19:43:57+03:30", "utc": "1937-10-23T16:13:57Z", "ms": -1015832762854.6616 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:45 on Fri 22 Oct to 12:44 on Sat 23 Oct.", "fact": "1937-10-22T12:14:43Z → 1937-10-23T09:13:36Z" }, { "step": "kaala", "text": "Moonrise is at 18:43 on the 22nd and 19:44 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10725 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Friday 22 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": "1937-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-22", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Friday 22 October. Caturthī runs from 15:45 on Fri 22 Oct to 12:44 on Sat 23 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-10-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18882, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-10-26T05:42:34+03:30", "utc": "1937-10-26T02:12:34Z", "ms": -1015624046019.2338 }, "end": { "local": "1937-10-27T04:15:59+03:30", "utc": "1937-10-27T00:45:59Z", "ms": -1015542840779.1746 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-26T05:42:34+03:30", "utc": "1937-10-26T02:12:34Z", "ms": -1015624046019.2338 }, "end": { "local": "1937-10-27T04:15:59+03:30", "utc": "1937-10-27T00:45:59Z", "ms": -1015542840779.1746 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-10-25", "window": { "start": { "local": "1937-10-25T21:55:15+03:30", "utc": "1937-10-25T18:25:15Z", "ms": -1015652085097.8127 }, "end": { "local": "1937-10-25T21:55:15+03:30", "utc": "1937-10-25T18:25:15Z", "ms": -1015652085097.8127 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-10-26", "window": { "start": { "local": "1937-10-26T23:01:17+03:30", "utc": "1937-10-26T19:31:17Z", "ms": -1015561722837.6903 }, "end": { "local": "1937-10-26T23:01:17+03:30", "utc": "1937-10-26T19:31:17Z", "ms": -1015561722837.6903 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:43 on Tue 26 Oct to 04:16 on Wed 27 Oct.", "fact": "1937-10-26T02:12:34Z → 1937-10-27T00:45:59Z" }, { "step": "kaala", "text": "Moonrise is at 21:55 on the 25th and 23:01 on the 26th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 25th and is on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18882 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Mashhad, 1937: Tuesday 26 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": "1937-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-26", "confidence": "determinate" } ], "quote": "In Mashhad, Ahoyī Aṣṭamī 1937 falls on Tuesday 26 October. Aṣṭamī runs from 05:43 on Tue 26 Oct to 04:16 on Wed 27 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-10-29", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10582, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-10-29T02:52:48+03:30", "utc": "1937-10-28T23:22:48Z", "ms": -1015375032401.7195 }, "end": { "local": "1937-10-30T02:55:53+03:30", "utc": "1937-10-29T23:25:53Z", "ms": -1015288446781.6421 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-29T02:52:48+03:30", "utc": "1937-10-28T23:22:48Z", "ms": -1015375032401.7195 }, "end": { "local": "1937-10-30T02:55:53+03:30", "utc": "1937-10-29T23:25:53Z", "ms": -1015288446781.6421 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-10-29", "window": { "start": { "local": "1937-10-29T05:51:17+03:30", "utc": "1937-10-29T02:21:17Z", "ms": -1015364323325.9445 }, "end": { "local": "1937-10-29T05:51:17+03:30", "utc": "1937-10-29T02:21:17Z", "ms": -1015364323325.9445 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-10-30", "window": { "start": { "local": "1937-10-30T05:52:15+03:30", "utc": "1937-10-30T02:22:15Z", "ms": -1015277864852.6338 }, "end": { "local": "1937-10-30T05:52:15+03:30", "utc": "1937-10-30T02:22:15Z", "ms": -1015277864852.6338 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:53 on Fri 29 Oct to 02:56 on Sat 30 Oct.", "fact": "1937-10-28T23:22:48Z → 1937-10-29T23:25:53Z" }, { "step": "kaala", "text": "Sunrise is at 05:51 on the 29th and 05:52 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10582 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Mashhad, 1937: Friday 29 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": "1937-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-29", "confidence": "determinate" } ], "quote": "In Mashhad, Ramā Ekādaśī 1937 falls on Friday 29 October. Ekādaśī runs from 02:53 on Fri 29 Oct to 02:56 on Sat 30 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-10-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30666, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-10-30T02:55:53+03:30", "utc": "1937-10-29T23:25:53Z", "ms": -1015288446781.6421 }, "end": { "local": "1937-10-31T03:27:49+03:30", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-30T02:55:53+03:30", "utc": "1937-10-29T23:25:53Z", "ms": -1015288446781.6421 }, "end": { "local": "1937-10-31T03:27:49+03:30", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-29", "window": { "start": { "local": "1937-10-29T16:39:01+03:30", "utc": "1937-10-29T13:09:01Z", "ms": -1015325459180.5037 }, "end": { "local": "1937-10-29T18:24:47+03:30", "utc": "1937-10-29T14:54:47Z", "ms": -1015319113270.121 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1937-10-30", "window": { "start": { "local": "1937-10-30T16:37:55+03:30", "utc": "1937-10-30T13:07:55Z", "ms": -1015239124745.9982 }, "end": { "local": "1937-10-30T18:23:58+03:30", "utc": "1937-10-30T14:53:58Z", "ms": -1015232762253.7509 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 02:56 on Sat 30 Oct to 03:28 on Sun 31 Oct.", "fact": "1937-10-29T23:25:53Z → 1937-10-30T23:57:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:39–18:25 on the 29th, 16:38–18:24 on the 30th.", "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 106 minutes on the 29th and 106 of 106 on the 30th.", "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 30666 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Mashhad, 1937: Saturday 30 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": "1937-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-30", "confidence": "determinate" } ], "quote": "In Mashhad, Govatsa Dvādaśī (Vasu Baras) 1937 falls on Saturday 30 October. Dvādaśī runs from 02:56 on Sat 30 Oct to 03:28 on Sun 31 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32631, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-10-31T03:27:49+03:30", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "end": { "local": "1937-11-01T04:27:38+03:30", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-31T03:27:49+03:30", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "end": { "local": "1937-11-01T04:27:38+03:30", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-30", "window": { "start": { "local": "1937-10-30T16:37:55+03:30", "utc": "1937-10-30T13:07:55Z", "ms": -1015239124745.9982 }, "end": { "local": "1937-10-30T18:23:58+03:30", "utc": "1937-10-30T14:53:58Z", "ms": -1015232762253.7509 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1937-10-31", "window": { "start": { "local": "1937-10-31T16:36:51+03:30", "utc": "1937-10-31T13:06:51Z", "ms": -1015152789050.5231 }, "end": { "local": "1937-10-31T18:23:10+03:30", "utc": "1937-10-31T14:53:10Z", "ms": -1015146410103.1373 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:28 on Sun 31 Oct to 04:28 on Mon 1 Nov.", "fact": "1937-10-30T23:57:49Z → 1937-11-01T00:57:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:38–18:24 on the 30th, 16:37–18:23 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 106 minutes on the 30th and 106 of 106 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32631 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Mashhad, 1937: Sunday 31 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": "1937-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-31", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Dīpadāna 1937 falls on Sunday 31 October. Trayodaśī runs from 03:28 on Sun 31 Oct to 04:28 on Mon 1 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/pradosha-vrata?on=1937-10-31", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32631, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-10-31T03:27:49+03:30", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "end": { "local": "1937-11-01T04:27:38+03:30", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-31T03:27:49+03:30", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "end": { "local": "1937-11-01T04:27:38+03:30", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-30", "window": { "start": { "local": "1937-10-30T16:37:55+03:30", "utc": "1937-10-30T13:07:55Z", "ms": -1015239124745.9982 }, "end": { "local": "1937-10-30T18:23:58+03:30", "utc": "1937-10-30T14:53:58Z", "ms": -1015232762253.7509 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1937-10-31", "window": { "start": { "local": "1937-10-31T16:36:51+03:30", "utc": "1937-10-31T13:06:51Z", "ms": -1015152789050.5231 }, "end": { "local": "1937-10-31T18:23:10+03:30", "utc": "1937-10-31T14:53:10Z", "ms": -1015146410103.1373 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:28 on Sun 31 Oct to 04:28 on Mon 1 Nov.", "fact": "1937-10-30T23:57:49Z → 1937-11-01T00:57:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:38–18:24 on the 30th, 16:37–18:23 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 106 minutes on the 30th and 106 of 106 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32631 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Sunday 31 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": "1937-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-31", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Sunday 31 October. Trayodaśī runs from 03:28 on Sun 31 Oct to 04:28 on Mon 1 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-10-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-01", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 62, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-11-01T04:27:38+03:30", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "end": { "local": "1937-11-02T05:54:11+03:30", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-01T04:27:38+03:30", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "end": { "local": "1937-11-02T05:54:11+03:30", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 } }, "kaala": "arunodaya", "days": [ { "local_date": "1937-11-01", "window": { "start": { "local": "1937-11-01T04:07:54+03:30", "utc": "1937-11-01T00:37:54Z", "ms": -1015111325892.5155 }, "end": { "local": "1937-11-01T05:54:13+03:30", "utc": "1937-11-01T02:24:13Z", "ms": -1015104946945.1298 } }, "covered_min": 87, "window_min": 106, "qualifies": true }, { "local_date": "1937-11-02", "window": { "start": { "local": "1937-11-02T04:08:37+03:30", "utc": "1937-11-02T00:38:37Z", "ms": -1015024882811.5111 }, "end": { "local": "1937-11-02T05:55:12+03:30", "utc": "1937-11-02T02:25:12Z", "ms": -1015018487541.8267 } }, "covered_min": 106, "window_min": 107, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:28 on Mon 1 Nov to 05:54 on Tue 2 Nov.", "fact": "1937-11-01T00:57:38Z → 1937-11-02T02:24:11Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:08–05:54 on the 1st, 04:09–05:55 on the 2nd.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 87 of 106 minutes on the 1st and 106 of 107 on the 2nd.", "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 62 s < 300 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Mashhad, 1937: Monday 1 November.", "fact": "confidence: boundary (margin)" } ], "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": "1937-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-01", "confidence": "boundary" } ], "quote": "In Mashhad, Naraka Caturdaśī (Choti Diwali) 1937 falls on Monday 1 November. Caturdaśī runs from 04:28 on Mon 1 Nov to 05:54 on Tue 2 Nov and covers 87 of 106 minutes of aruṇodaya that dawn. It also reaches the next dawn for 106 minutes; by the rule the first dawn is taken. It is 1 min 02 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/shivaratri?on=1937-11-01", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17286, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-11-01T04:27:38+03:30", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "end": { "local": "1937-11-02T05:54:11+03:30", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-01T04:27:38+03:30", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "end": { "local": "1937-11-02T05:54:11+03:30", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 } }, "kaala": "nishita", "days": [ { "local_date": "1937-10-31", "window": { "start": { "local": "1937-10-31T22:51:32+03:30", "utc": "1937-10-31T19:21:32Z", "ms": -1015130307997.8264 }, "end": { "local": "1937-10-31T23:39:32+03:30", "utc": "1937-10-31T20:09:32Z", "ms": -1015127427997.8264 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-01", "window": { "start": { "local": "1937-11-01T22:51:30+03:30", "utc": "1937-11-01T19:21:30Z", "ms": -1015043909803.1436 }, "end": { "local": "1937-11-01T23:39:30+03:30", "utc": "1937-11-01T20:09:30Z", "ms": -1015041029803.1436 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:28 on Mon 1 Nov to 05:54 on Tue 2 Nov.", "fact": "1937-11-01T00:57:38Z → 1937-11-02T02:24:11Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:52–23:40 on the 31st, 22:52–23:40 on the 1st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17286 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Monday 1 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": "1937-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-01", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Monday 1 November. Caturdaśī runs from 04:28 on Mon 1 Nov to 05:54 on Tue 2 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-11-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31681, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1937-11-02T05:54:11+03:30", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "end": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-02T05:54:11+03:30", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "end": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-11-02", "window": { "start": { "local": "1937-11-02T16:34:46+03:30", "utc": "1937-11-02T13:04:46Z", "ms": -1014980113758.5925 }, "end": { "local": "1937-11-02T18:21:38+03:30", "utc": "1937-11-02T14:51:38Z", "ms": -1014973702305.708 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1937-11-03", "window": { "start": { "local": "1937-11-03T16:33:46+03:30", "utc": "1937-11-03T13:03:46Z", "ms": -1014893774103.9727 }, "end": { "local": "1937-11-03T18:20:53+03:30", "utc": "1937-11-03T14:50:53Z", "ms": -1014887346613.3976 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 05:54 on Tue 2 Nov to 07:46 on Wed 3 Nov.", "fact": "1937-11-02T02:24:11Z → 1937-11-03T04:15:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:35–18:22 on the 2nd, 16:34–18:21 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 107 of 107 minutes on the 2nd and 0 of 107 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31681 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Mashhad, 1937: Tuesday 2 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-02", "confidence": "determinate" } ], "quote": "In Mashhad, Lakṣmī Pūjā (Diwali) 1937 falls on Tuesday 2 November. Amāvasyā runs from 05:54 on Tue 2 Nov to 07:46 on Wed 3 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22481, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1937-11-02T05:54:11+03:30", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "end": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-02T05:54:11+03:30", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "end": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 } }, "kaala": "nishita", "days": [ { "local_date": "1937-11-01", "window": { "start": { "local": "1937-11-01T22:51:30+03:30", "utc": "1937-11-01T19:21:30Z", "ms": -1015043909803.1436 }, "end": { "local": "1937-11-01T23:39:30+03:30", "utc": "1937-11-01T20:09:30Z", "ms": -1015041029803.1436 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-02", "window": { "start": { "local": "1937-11-02T22:51:29+03:30", "utc": "1937-11-02T19:21:29Z", "ms": -1014957510810.2755 }, "end": { "local": "1937-11-02T23:39:29+03:30", "utc": "1937-11-02T20:09:29Z", "ms": -1014954630810.2755 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 05:54 on Tue 2 Nov to 07:46 on Wed 3 Nov.", "fact": "1937-11-02T02:24:11Z → 1937-11-03T04:15:45Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:52–23:40 on the 1st, 22:51–23:39 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22481 s" }, { "step": "ruling", "text": "Kālī Pūjā, Mashhad, 1937: Tuesday 2 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-02", "confidence": "determinate" } ], "quote": "In Mashhad, Kālī Pūjā 1937 falls on Tuesday 2 November. Amāvasyā runs from 05:54 on Tue 2 Nov to 07:46 on Wed 3 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3084, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T09:59:36+03:30", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T09:59:36+03:30", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-03", "window": { "start": { "local": "1937-11-03T10:50:59+03:30", "utc": "1937-11-03T07:20:59Z", "ms": -1014914340982.9656 }, "end": { "local": "1937-11-03T11:38:59+03:30", "utc": "1937-11-03T08:08:59Z", "ms": -1014911460982.9656 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-04", "window": { "start": { "local": "1937-11-04T10:51:00+03:30", "utc": "1937-11-04T07:21:00Z", "ms": -1014827940498.2399 }, "end": { "local": "1937-11-04T11:39:00+03:30", "utc": "1937-11-04T08:09:00Z", "ms": -1014825060498.2399 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:46 on Wed 3 Nov to 10:00 on Thu 4 Nov.", "fact": "1937-11-03T04:15:45Z → 1937-11-04T06:29:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 3rd, 10:51–11:39 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3084 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Mashhad, 1937: Wednesday 3 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": "1937-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-03", "confidence": "determinate" } ], "quote": "In Mashhad, Govardhana Pūjā 1937 falls on Wednesday 3 November. Pratipadā runs from 07:46 on Wed 3 Nov to 10:00 on Thu 4 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23591, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T09:59:36+03:30", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T09:59:36+03:30", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-11-03", "window": { "start": { "local": "1937-11-03T16:33:46+03:30", "utc": "1937-11-03T13:03:46Z", "ms": -1014893774103.9727 }, "end": { "local": "1937-11-03T18:20:53+03:30", "utc": "1937-11-03T14:50:53Z", "ms": -1014887346613.3976 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1937-11-04", "window": { "start": { "local": "1937-11-04T16:32:47+03:30", "utc": "1937-11-04T13:02:47Z", "ms": -1014807433071.8202 }, "end": { "local": "1937-11-04T18:20:10+03:30", "utc": "1937-11-04T14:50:10Z", "ms": -1014800989695.628 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:46 on Wed 3 Nov to 10:00 on Thu 4 Nov.", "fact": "1937-11-03T04:15:45Z → 1937-11-04T06:29:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:34–18:21 on the 3rd, 16:33–18:20 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 107 of 107 minutes on the 3rd and 0 of 107 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23591 s" }, { "step": "ruling", "text": "Bali Pūjā, Mashhad, 1937: Wednesday 3 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": "1937-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-03", "confidence": "determinate" } ], "quote": "In Mashhad, Bali Pūjā 1937 falls on Wednesday 3 November. Pratipadā runs from 07:46 on Wed 3 Nov to 10:00 on Thu 4 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3084, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1937-11-04T09:59:36+03:30", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "end": { "local": "1937-11-05T12:31:15+03:30", "utc": "1937-11-05T09:01:15Z", "ms": -1014735524511.694 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-04T09:59:36+03:30", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "end": { "local": "1937-11-05T12:31:15+03:30", "utc": "1937-11-05T09:01:15Z", "ms": -1014735524511.694 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-04", "window": { "start": { "local": "1937-11-04T10:51:00+03:30", "utc": "1937-11-04T07:21:00Z", "ms": -1014827940498.2399 }, "end": { "local": "1937-11-04T11:39:00+03:30", "utc": "1937-11-04T08:09:00Z", "ms": -1014825060498.2399 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-05", "window": { "start": { "local": "1937-11-05T10:51:01+03:30", "utc": "1937-11-05T07:21:01Z", "ms": -1014741539191.9117 }, "end": { "local": "1937-11-05T11:39:01+03:30", "utc": "1937-11-05T08:09:01Z", "ms": -1014738659191.9117 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 10:00 on Thu 4 Nov to 12:31 on Fri 5 Nov.", "fact": "1937-11-04T06:29:36Z → 1937-11-05T09:01:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 4th, 10:51–11:39 on the 5th.", "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 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 3084 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Mashhad, 1937: Thursday 4 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": "1937-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-04", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Dvitīyā (Bhai Dooj) 1937 falls on Thursday 4 November. Dvitīyā runs from 10:00 on Thu 4 Nov to 12:31 on Fri 5 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-04", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1832, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T09:59:36+03:30", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-03T07:45:45+03:30", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T09:59:36+03:30", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 } }, "kaala": "purvahna", "days": [ { "local_date": "1937-11-03", "window": { "start": { "local": "1937-11-03T05:56:12+03:30", "utc": "1937-11-03T02:26:12Z", "ms": -1014932027861.9585 }, "end": { "local": "1937-11-03T09:28:43+03:30", "utc": "1937-11-03T05:58:43Z", "ms": -1014919276609.2965 } }, "covered_min": 103, "window_min": 213, "qualifies": true }, { "local_date": "1937-11-04", "window": { "start": { "local": "1937-11-04T05:57:12+03:30", "utc": "1937-11-04T02:27:12Z", "ms": -1014845567924.6595 }, "end": { "local": "1937-11-04T09:29:04+03:30", "utc": "1937-11-04T05:59:04Z", "ms": -1014832856307.0464 } }, "covered_min": 212, "window_min": 212, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:46 on Wed 3 Nov to 10:00 on Thu 4 Nov.", "fact": "1937-11-03T04:15:45Z → 1937-11-04T06:29:36Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:56–09:29 on the 3rd, 05:57–09:29 on the 4th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 103 of 213 minutes on the 3rd and 212 of 212 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1832 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Mashhad, 1937: Thursday 4 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1937-11-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-04", "confidence": "boundary" } ], "quote": "In Mashhad, Dyūta Pratipad 1937 falls on Thursday 4 November. Pratipadā runs from 07:46 on Wed 3 Nov to 10:00 on Thu 4 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 103 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/mashhad/festivals/1937/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": "/mashhad/festivals/1937/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12898, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-11-06T15:14:01+03:30", "utc": "1937-11-06T11:44:01Z", "ms": -1014639359464.9072 }, "end": { "local": "1937-11-07T17:58:40+03:30", "utc": "1937-11-07T14:28:40Z", "ms": -1014543079621.6318 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-06T15:14:01+03:30", "utc": "1937-11-06T11:44:01Z", "ms": -1014639359464.9072 }, "end": { "local": "1937-11-07T17:58:40+03:30", "utc": "1937-11-07T14:28:40Z", "ms": -1014543079621.6318 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-06", "window": { "start": { "local": "1937-11-06T10:51:03+03:30", "utc": "1937-11-06T07:21:03Z", "ms": -1014655137060.4976 }, "end": { "local": "1937-11-06T11:39:03+03:30", "utc": "1937-11-06T08:09:03Z", "ms": -1014652257060.4976 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-07", "window": { "start": { "local": "1937-11-07T10:51:06+03:30", "utc": "1937-11-07T07:21:06Z", "ms": -1014568734101.103 }, "end": { "local": "1937-11-07T11:39:06+03:30", "utc": "1937-11-07T08:09:06Z", "ms": -1014565854101.103 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:14 on Sat 6 Nov to 17:59 on Sun 7 Nov.", "fact": "1937-11-06T11:44:01Z → 1937-11-07T14:28:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 6th, 10:51–11:39 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12898 s" }, { "step": "ruling", "text": "Nāga Caturthī, Mashhad, 1937: Sunday 7 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-07", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Caturthī 1937 falls on Sunday 7 November. Caturthī runs from 15:14 on Sat 6 Nov to 17:59 on Sun 7 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-11-07", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12898, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-11-06T15:14:01+03:30", "utc": "1937-11-06T11:44:01Z", "ms": -1014639359464.9072 }, "end": { "local": "1937-11-07T17:58:40+03:30", "utc": "1937-11-07T14:28:40Z", "ms": -1014543079621.6318 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-06T15:14:01+03:30", "utc": "1937-11-06T11:44:01Z", "ms": -1014639359464.9072 }, "end": { "local": "1937-11-07T17:58:40+03:30", "utc": "1937-11-07T14:28:40Z", "ms": -1014543079621.6318 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-06", "window": { "start": { "local": "1937-11-06T10:51:03+03:30", "utc": "1937-11-06T07:21:03Z", "ms": -1014655137060.4976 }, "end": { "local": "1937-11-06T11:39:03+03:30", "utc": "1937-11-06T08:09:03Z", "ms": -1014652257060.4976 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-07", "window": { "start": { "local": "1937-11-07T10:51:06+03:30", "utc": "1937-11-07T07:21:06Z", "ms": -1014568734101.103 }, "end": { "local": "1937-11-07T11:39:06+03:30", "utc": "1937-11-07T08:09:06Z", "ms": -1014565854101.103 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:14 on Sat 6 Nov to 17:59 on Sun 7 Nov.", "fact": "1937-11-06T11:44:01Z → 1937-11-07T14:28:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 6th, 10:51–11:39 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12898 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Sunday 7 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-07", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Sunday 7 November. Caturthī runs from 15:14 on Sat 6 Nov to 17:59 on Sun 7 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32091, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-11-08T20:34:01+03:30", "utc": "1937-11-08T17:04:01Z", "ms": -1014447359247.312 }, "end": { "local": "1937-11-09T22:47:48+03:30", "utc": "1937-11-09T19:17:48Z", "ms": -1014352931562.9966 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-08T20:34:01+03:30", "utc": "1937-11-08T17:04:01Z", "ms": -1014447359247.312 }, "end": { "local": "1937-11-09T22:47:48+03:30", "utc": "1937-11-09T19:17:48Z", "ms": -1014352931562.9966 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-08", "window": { "start": { "local": "1937-11-08T10:51:10+03:30", "utc": "1937-11-08T07:21:10Z", "ms": -1014482330311.3943 }, "end": { "local": "1937-11-08T11:39:10+03:30", "utc": "1937-11-08T08:09:10Z", "ms": -1014479450311.3943 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-09", "window": { "start": { "local": "1937-11-09T10:51:14+03:30", "utc": "1937-11-09T07:21:14Z", "ms": -1014395925689.5781 }, "end": { "local": "1937-11-09T11:39:14+03:30", "utc": "1937-11-09T08:09:14Z", "ms": -1014393045689.5781 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:34 on Mon 8 Nov to 22:48 on Tue 9 Nov.", "fact": "1937-11-08T17:04:01Z → 1937-11-09T19:17:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 8th, 10:51–11:39 on the 9th.", "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 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32091 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Mashhad, 1937: Tuesday 9 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": "1937-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-09", "confidence": "determinate" } ], "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Chhath) 1937 falls on Tuesday 9 November. Ṣaṣṭhī runs from 20:34 on Mon 8 Nov to 22:48 on Tue 9 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33901, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-11-11T00:28:26+03:30", "utc": "1937-11-10T20:58:26Z", "ms": -1014260493824.1877 }, "end": { "local": "1937-11-12T01:26:32+03:30", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-11T00:28:26+03:30", "utc": "1937-11-10T20:58:26Z", "ms": -1014260493824.1877 }, "end": { "local": "1937-11-12T01:26:32+03:30", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-11", "window": { "start": { "local": "1937-11-11T10:51:26+03:30", "utc": "1937-11-11T07:21:26Z", "ms": -1014223113944.9866 }, "end": { "local": "1937-11-11T11:39:26+03:30", "utc": "1937-11-11T08:09:26Z", "ms": -1014220233944.9866 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-12", "window": { "start": { "local": "1937-11-12T10:51:33+03:30", "utc": "1937-11-12T07:21:33Z", "ms": -1014136706821.0146 }, "end": { "local": "1937-11-12T11:39:33+03:30", "utc": "1937-11-12T08:09:33Z", "ms": -1014133826821.0146 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:28 on Thu 11 Nov to 01:27 on Fri 12 Nov.", "fact": "1937-11-10T20:58:26Z → 1937-11-11T21:56:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 11th, 10:52–11:40 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33901 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Mashhad, 1937: Thursday 11 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": "1937-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-11", "confidence": "determinate" } ], "quote": "In Mashhad, Gopāṣṭamī 1937 falls on Thursday 11 November. Aṣṭamī runs from 00:28 on Thu 11 Nov to 01:27 on Fri 12 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16206, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1937-11-12T01:26:32+03:30", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "end": { "local": "1937-11-13T01:36:14+03:30", "utc": "1937-11-12T22:06:14Z", "ms": -1014083626393.3188 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-12T01:26:32+03:30", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "end": { "local": "1937-11-13T01:36:14+03:30", "utc": "1937-11-12T22:06:14Z", "ms": -1014083626393.3188 } }, "kaala": "purvahna", "days": [ { "local_date": "1937-11-12", "window": { "start": { "local": "1937-11-12T06:05:18+03:30", "utc": "1937-11-12T02:35:18Z", "ms": -1014153881853.321 }, "end": { "local": "1937-11-12T09:32:08+03:30", "utc": "1937-11-12T06:02:08Z", "ms": -1014141471831.7834 } }, "covered_min": 207, "window_min": 207, "qualifies": true }, { "local_date": "1937-11-13", "window": { "start": { "local": "1937-11-13T06:06:19+03:30", "utc": "1937-11-13T02:36:19Z", "ms": -1014067420652.5317 }, "end": { "local": "1937-11-13T09:32:34+03:30", "utc": "1937-11-13T06:02:34Z", "ms": -1014055046125.7513 } }, "covered_min": 0, "window_min": 206, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 01:27 on Fri 12 Nov to 01:36 on Sat 13 Nov.", "fact": "1937-11-11T21:56:32Z → 1937-11-12T22:06:14Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:05–09:32 on the 12th, 06:06–09:33 on the 13th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 207 of 207 minutes on the 12th and 0 of 206 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16206 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Mashhad, 1937: Friday 12 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": "1937-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-12", "confidence": "determinate" } ], "quote": "In Mashhad, Akṣaya Navamī (Amla Navami) 1937 falls on Friday 12 November. Navamī runs from 01:27 on Fri 12 Nov to 01:36 on Sat 13 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33328, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1937-11-12T01:26:32+03:30", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "end": { "local": "1937-11-13T01:36:14+03:30", "utc": "1937-11-12T22:06:14Z", "ms": -1014083626393.3188 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-12T01:26:32+03:30", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "end": { "local": "1937-11-13T01:36:14+03:30", "utc": "1937-11-12T22:06:14Z", "ms": -1014083626393.3188 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-12", "window": { "start": { "local": "1937-11-12T10:51:33+03:30", "utc": "1937-11-12T07:21:33Z", "ms": -1014136706821.0146 }, "end": { "local": "1937-11-12T11:39:33+03:30", "utc": "1937-11-12T08:09:33Z", "ms": -1014133826821.0146 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-13", "window": { "start": { "local": "1937-11-13T10:51:41+03:30", "utc": "1937-11-13T07:21:41Z", "ms": -1014050298862.3611 }, "end": { "local": "1937-11-13T11:39:41+03:30", "utc": "1937-11-13T08:09:41Z", "ms": -1014047418862.3611 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 01:27 on Fri 12 Nov to 01:36 on Sat 13 Nov.", "fact": "1937-11-11T21:56:32Z → 1937-11-12T22:06:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 12th, 10:52–11:40 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33328 s" }, { "step": "ruling", "text": "Durgā Navamī, Mashhad, 1937: Friday 12 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": "1937-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-12", "confidence": "determinate" } ], "quote": "In Mashhad, Durgā Navamī 1937 falls on Friday 12 November. Navamī runs from 01:27 on Fri 12 Nov to 01:36 on Sat 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/ekadashi?on=1937-11-14", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18701, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-11-14T00:55:39+03:30", "utc": "1937-11-13T21:25:39Z", "ms": -1013999660774.3124 }, "end": { "local": "1937-11-14T23:26:46+03:30", "utc": "1937-11-14T19:56:46Z", "ms": -1013918593947.9454 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-14T00:55:39+03:30", "utc": "1937-11-13T21:25:39Z", "ms": -1013999660774.3124 }, "end": { "local": "1937-11-14T23:26:46+03:30", "utc": "1937-11-14T19:56:46Z", "ms": -1013918593947.9454 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-11-14", "window": { "start": { "local": "1937-11-14T06:07:21+03:30", "utc": "1937-11-14T02:37:21Z", "ms": -1013980959445.4711 }, "end": { "local": "1937-11-14T06:07:21+03:30", "utc": "1937-11-14T02:37:21Z", "ms": -1013980959445.4711 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-11-15", "window": { "start": { "local": "1937-11-15T06:08:22+03:30", "utc": "1937-11-15T02:38:22Z", "ms": -1013894498260.3779 }, "end": { "local": "1937-11-15T06:08:22+03:30", "utc": "1937-11-15T02:38:22Z", "ms": -1013894498260.3779 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:56 on Sun 14 Nov to 23:27 on Sun 14 Nov.", "fact": "1937-11-13T21:25:39Z → 1937-11-14T19:56:46Z" }, { "step": "kaala", "text": "Sunrise is at 06:07 on the 14th and 06:08 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 14th and is not on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18701 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Mashhad, 1937: Sunday 14 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": "1937-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-14", "confidence": "determinate" } ], "quote": "In Mashhad, Prabodhinī Ekādaśī 1937 falls on Sunday 14 November. Ekādaśī runs from 00:56 on Sun 14 Nov to 23:27 on Sun 14 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-11-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-11-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 806, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-11-15T21:14:40+03:30", "utc": "1937-11-15T17:44:40Z", "ms": -1013840120297.2235 }, "end": { "local": "1937-11-16T18:26:43+03:30", "utc": "1937-11-16T14:56:43Z", "ms": -1013763797101.9294 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-15T21:14:40+03:30", "utc": "1937-11-15T17:44:40Z", "ms": -1013840120297.2235 }, "end": { "local": "1937-11-16T18:26:43+03:30", "utc": "1937-11-16T14:56:43Z", "ms": -1013763797101.9294 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-11-15", "window": { "start": { "local": "1937-11-15T16:23:37+03:30", "utc": "1937-11-15T12:53:37Z", "ms": -1013857582622.0327 }, "end": { "local": "1937-11-15T18:13:43+03:30", "utc": "1937-11-15T14:43:43Z", "ms": -1013850976556.0106 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "1937-11-16", "window": { "start": { "local": "1937-11-16T16:22:57+03:30", "utc": "1937-11-16T12:52:57Z", "ms": -1013771222830.4448 }, "end": { "local": "1937-11-16T18:13:17+03:30", "utc": "1937-11-16T14:43:17Z", "ms": -1013764603262.7706 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:15 on Mon 15 Nov to 18:27 on Tue 16 Nov.", "fact": "1937-11-15T17:44:40Z → 1937-11-16T14:56:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:24–18:14 on the 15th, 16:23–18:13 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 110 minutes on the 15th and 110 of 110 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 806 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Tuesday 16 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": "1937-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-16", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Tuesday 16 November. Trayodaśī runs from 21:15 on Mon 15 Nov to 18:27 on Tue 16 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-11-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27665, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-11-17T15:11:47+03:30", "utc": "1937-11-17T11:41:47Z", "ms": -1013689093357.2233 }, "end": { "local": "1937-11-18T11:39:30+03:30", "utc": "1937-11-18T08:09:30Z", "ms": -1013615429534.1174 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-17T15:11:47+03:30", "utc": "1937-11-17T11:41:47Z", "ms": -1013689093357.2233 }, "end": { "local": "1937-11-18T11:39:30+03:30", "utc": "1937-11-18T08:09:30Z", "ms": -1013615429534.1174 } }, "kaala": "nishita", "days": [ { "local_date": "1937-11-17", "window": { "start": { "local": "1937-11-17T22:52:52+03:30", "utc": "1937-11-17T19:22:52Z", "ms": -1013661428208.2603 }, "end": { "local": "1937-11-17T23:40:52+03:30", "utc": "1937-11-17T20:10:52Z", "ms": -1013658548208.2603 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-18", "window": { "start": { "local": "1937-11-18T22:53:04+03:30", "utc": "1937-11-18T19:23:04Z", "ms": -1013575016144.3811 }, "end": { "local": "1937-11-18T23:41:04+03:30", "utc": "1937-11-18T20:11:04Z", "ms": -1013572136144.3811 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:12 on Wed 17 Nov to 11:40 on Thu 18 Nov.", "fact": "1937-11-17T11:41:47Z → 1937-11-18T08:09:30Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:53–23:41 on the 17th, 22:53–23:41 on the 18th.", "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 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 night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27665 s" }, { "step": "ruling", "text": "Rāsayātrā, Mashhad, 1937: Wednesday 17 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": "1937-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-17", "confidence": "determinate" } ], "quote": "In Mashhad, Rāsayātrā 1937 falls on Wednesday 17 November. Pūrṇimā runs from 15:12 on Wed 17 Nov to 11:40 on Thu 18 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-18", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 63, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-11-17T15:11:47+03:30", "utc": "1937-11-17T11:41:47Z", "ms": -1013689093357.2233 }, "end": { "local": "1937-11-18T11:39:30+03:30", "utc": "1937-11-18T08:09:30Z", "ms": -1013615429534.1174 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-17T15:11:47+03:30", "utc": "1937-11-17T11:41:47Z", "ms": -1013689093357.2233 }, "end": { "local": "1937-11-18T11:39:30+03:30", "utc": "1937-11-18T08:09:30Z", "ms": -1013615429534.1174 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-17", "window": { "start": { "local": "1937-11-17T10:52:21+03:30", "utc": "1937-11-17T07:22:21Z", "ms": -1013704658681.1938 }, "end": { "local": "1937-11-17T11:40:21+03:30", "utc": "1937-11-17T08:10:21Z", "ms": -1013701778681.1938 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-18", "window": { "start": { "local": "1937-11-18T10:52:33+03:30", "utc": "1937-11-18T07:22:33Z", "ms": -1013618246548.6038 }, "end": { "local": "1937-11-18T11:40:33+03:30", "utc": "1937-11-18T08:10:33Z", "ms": -1013615366548.6038 } }, "covered_min": 47, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:12 on Wed 17 Nov to 11:40 on Thu 18 Nov.", "fact": "1937-11-17T11:41:47Z → 1937-11-18T08:09:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 17th, 10:53–11:41 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 47 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: unstated → only-day · margin 63 s < 300 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Mashhad, 1937: Thursday 18 November.", "fact": "confidence: boundary (margin)" } ], "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": "1937-11-18", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-18", "confidence": "determinate" } ], "quote": "In Mashhad, Kārtikī Pūrṇimā 1937 falls on Thursday 18 November. Pūrṇimā runs from 15:12 on Wed 17 Nov to 11:40 on Thu 18 Nov and covers 47 of 48 minutes of madhyāhna that midday. It is 1 min 03 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/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": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-11-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7996, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-11-21T00:57:48+03:30", "utc": "1937-11-20T21:27:48Z", "ms": -1013394731930.7666 }, "end": { "local": "1937-11-21T21:53:46+03:30", "utc": "1937-11-21T18:23:46Z", "ms": -1013319373949.0803 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-11-21T00:57:48+03:30", "utc": "1937-11-20T21:27:48Z", "ms": -1013394731930.7666 }, "end": { "local": "1937-11-21T21:53:46+03:30", "utc": "1937-11-21T18:23:46Z", "ms": -1013319373949.0803 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-11-20", "window": { "start": { "local": "1937-11-20T18:31:40+03:30", "utc": "1937-11-20T15:01:40Z", "ms": -1013417899977.5924 }, "end": { "local": "1937-11-20T18:31:40+03:30", "utc": "1937-11-20T15:01:40Z", "ms": -1013417899977.5924 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-11-21", "window": { "start": { "local": "1937-11-21T19:40:30+03:30", "utc": "1937-11-21T16:10:30Z", "ms": -1013327370209.4257 }, "end": { "local": "1937-11-21T19:40:30+03:30", "utc": "1937-11-21T16:10:30Z", "ms": -1013327370209.4257 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:58 on Sun 21 Nov to 21:54 on Sun 21 Nov.", "fact": "1937-11-20T21:27:48Z → 1937-11-21T18:23:46Z" }, { "step": "kaala", "text": "Moonrise is at 18:32 on the 20th and 19:40 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7996 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Sunday 21 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-21", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Sunday 21 November. Caturthī runs from 00:58 on Sun 21 Nov to 21:54 on Sun 21 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-11-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-11-28", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35314, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-11-27T16:08:57+03:30", "utc": "1937-11-27T12:38:57Z", "ms": -1012821662677.1661 }, "end": { "local": "1937-11-28T17:28:35+03:30", "utc": "1937-11-28T13:58:35Z", "ms": -1012730484514.0297 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-11-27T16:08:57+03:30", "utc": "1937-11-27T12:38:57Z", "ms": -1012821662677.1661 }, "end": { "local": "1937-11-28T17:28:35+03:30", "utc": "1937-11-28T13:58:35Z", "ms": -1012730484514.0297 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-11-27", "window": { "start": { "local": "1937-11-27T06:20:23+03:30", "utc": "1937-11-27T02:50:23Z", "ms": -1012856976995.1534 }, "end": { "local": "1937-11-27T06:20:23+03:30", "utc": "1937-11-27T02:50:23Z", "ms": -1012856976995.1534 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-11-28", "window": { "start": { "local": "1937-11-28T06:21:21+03:30", "utc": "1937-11-28T02:51:21Z", "ms": -1012770519092.598 }, "end": { "local": "1937-11-28T06:21:21+03:30", "utc": "1937-11-28T02:51:21Z", "ms": -1012770519092.598 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:09 on Sat 27 Nov to 17:29 on Sun 28 Nov.", "fact": "1937-11-27T12:38:57Z → 1937-11-28T13:58:35Z" }, { "step": "kaala", "text": "Sunrise is at 06:20 on the 27th and 06:21 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35314 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Mashhad, 1937: Sunday 28 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": "1937-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-28", "confidence": "determinate" } ], "quote": "In Mashhad, Utpannā Ekādaśī 1937 falls on Sunday 28 November. Ekādaśī runs from 16:09 on Sat 27 Nov to 17:29 on Sun 28 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-11-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-11-30", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4089, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-11-29T19:18:01+03:30", "utc": "1937-11-29T15:48:01Z", "ms": -1012637518558.8527 }, "end": { "local": "1937-11-30T21:30:52+03:30", "utc": "1937-11-30T18:00:52Z", "ms": -1012543148396.7985 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-11-29T19:18:01+03:30", "utc": "1937-11-29T15:48:01Z", "ms": -1012637518558.8527 }, "end": { "local": "1937-11-30T21:30:52+03:30", "utc": "1937-11-30T18:00:52Z", "ms": -1012543148396.7985 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-11-29", "window": { "start": { "local": "1937-11-29T16:17:03+03:30", "utc": "1937-11-29T12:47:03Z", "ms": -1012648376690.9161 }, "end": { "local": "1937-11-29T18:09:53+03:30", "utc": "1937-11-29T14:39:53Z", "ms": -1012641607129.337 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "1937-11-30", "window": { "start": { "local": "1937-11-30T16:16:50+03:30", "utc": "1937-11-30T12:46:50Z", "ms": -1012561990190.5216 }, "end": { "local": "1937-11-30T18:09:49+03:30", "utc": "1937-11-30T14:39:49Z", "ms": -1012555211347.789 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:18 on Mon 29 Nov to 21:31 on Tue 30 Nov.", "fact": "1937-11-29T15:48:01Z → 1937-11-30T18:00:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:17–18:10 on the 29th, 16:17–18:10 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 113 minutes on the 29th and 113 of 113 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 4089 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Tuesday 30 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": "1937-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-30", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Tuesday 30 November. Trayodaśī runs from 19:18 on Mon 29 Nov to 21:31 on Tue 30 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-11-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-11-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-11-30", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 941, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-11-30T21:30:52+03:30", "utc": "1937-11-30T18:00:52Z", "ms": -1012543148396.7985 }, "end": { "local": "1937-12-02T00:00:33+03:30", "utc": "1937-12-01T20:30:33Z", "ms": -1012447766962.8444 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-11-30T21:30:52+03:30", "utc": "1937-11-30T18:00:52Z", "ms": -1012543148396.7985 }, "end": { "local": "1937-12-02T00:00:33+03:30", "utc": "1937-12-01T20:30:33Z", "ms": -1012447766962.8444 } }, "kaala": "nishita", "days": [ { "local_date": "1937-11-30", "window": { "start": { "local": "1937-11-30T22:56:30+03:30", "utc": "1937-11-30T19:26:30Z", "ms": -1012538009530.2742 }, "end": { "local": "1937-11-30T23:44:30+03:30", "utc": "1937-11-30T20:14:30Z", "ms": -1012535129530.2742 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-12-01", "window": { "start": { "local": "1937-12-01T22:56:52+03:30", "utc": "1937-12-01T19:26:52Z", "ms": -1012451587565.2063 }, "end": { "local": "1937-12-01T23:44:52+03:30", "utc": "1937-12-01T20:14:52Z", "ms": -1012448707565.2063 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:31 on Tue 30 Nov to 00:01 on Thu 2 Dec.", "fact": "1937-11-30T18:00:52Z → 1937-12-01T20:30:33Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:57–23:45 on the 30th, 22:57–23:45 on the 1st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 30th and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 941 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Tuesday 30 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-11-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-01", "confidence": "boundary" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Tuesday 30 November. Caturdaśī runs from 21:31 on Tue 30 Nov to 00:01 on Thu 2 Dec and covers all of niśītha that night. It also reaches the next night for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-11-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-12-06", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-06", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1205, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-12-06T10:38:21+03:30", "utc": "1937-12-06T07:08:21Z", "ms": -1012063898972.4022 }, "end": { "local": "1937-12-07T12:53:15+03:30", "utc": "1937-12-07T09:23:15Z", "ms": -1011969404850.371 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-06T10:38:21+03:30", "utc": "1937-12-06T07:08:21Z", "ms": -1012063898972.4022 }, "end": { "local": "1937-12-07T12:53:15+03:30", "utc": "1937-12-07T09:23:15Z", "ms": -1011969404850.371 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-06", "window": { "start": { "local": "1937-12-06T10:58:26+03:30", "utc": "1937-12-06T07:28:26Z", "ms": -1012062694278.1011 }, "end": { "local": "1937-12-06T11:46:26+03:30", "utc": "1937-12-06T08:16:26Z", "ms": -1012059814278.1011 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-12-07", "window": { "start": { "local": "1937-12-07T10:58:52+03:30", "utc": "1937-12-07T07:28:52Z", "ms": -1011976268388.956 }, "end": { "local": "1937-12-07T11:46:52+03:30", "utc": "1937-12-07T08:16:52Z", "ms": -1011973388388.956 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:38 on Mon 6 Dec to 12:53 on Tue 7 Dec.", "fact": "1937-12-06T07:08:21Z → 1937-12-07T09:23:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:58–11:46 on the 6th, 10:59–11:47 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1205 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1937: Monday 6 December.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-07", "confidence": "boundary" } ], "quote": "In Mashhad, Vināyaka Caturthī 1937 falls on Monday 6 December. Caturthī runs from 10:38 on Mon 6 Dec to 12:53 on Tue 7 Dec and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/vinayaka-chaturthi?on=1937-12-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3984, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-12-07T12:53:15+03:30", "utc": "1937-12-07T09:23:15Z", "ms": -1011969404850.371 }, "end": { "local": "1937-12-08T14:43:12+03:30", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-07T12:53:15+03:30", "utc": "1937-12-07T09:23:15Z", "ms": -1011969404850.371 }, "end": { "local": "1937-12-08T14:43:12+03:30", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-07", "window": { "start": { "local": "1937-12-07T10:58:52+03:30", "utc": "1937-12-07T07:28:52Z", "ms": -1011976268388.956 }, "end": { "local": "1937-12-07T11:46:52+03:30", "utc": "1937-12-07T08:16:52Z", "ms": -1011973388388.956 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-08", "window": { "start": { "local": "1937-12-08T10:59:18+03:30", "utc": "1937-12-08T07:29:18Z", "ms": -1011889842003.8894 }, "end": { "local": "1937-12-08T11:47:18+03:30", "utc": "1937-12-08T08:17:18Z", "ms": -1011886962003.8894 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:53 on Tue 7 Dec to 14:43 on Wed 8 Dec.", "fact": "1937-12-07T09:23:15Z → 1937-12-08T11:13:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 7th, 10:59–11:47 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3984 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Mashhad, 1937: Wednesday 8 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami-margashirsha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (2nd) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-08", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Pañcamī (Mārgaśīrṣa) 1937 falls on Wednesday 8 December. Pañcamī runs from 12:53 on Tue 7 Dec to 14:43 on Wed 8 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/naga-panchami-margashirsha", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10554, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-12-08T14:43:12+03:30", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "end": { "local": "1937-12-09T16:00:40+03:30", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-08T14:43:12+03:30", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "end": { "local": "1937-12-09T16:00:40+03:30", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-08", "window": { "start": { "local": "1937-12-08T10:59:18+03:30", "utc": "1937-12-08T07:29:18Z", "ms": -1011889842003.8894 }, "end": { "local": "1937-12-08T11:47:18+03:30", "utc": "1937-12-08T08:17:18Z", "ms": -1011886962003.8894 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-09", "window": { "start": { "local": "1937-12-09T10:59:45+03:30", "utc": "1937-12-09T07:29:45Z", "ms": -1011803415153.147 }, "end": { "local": "1937-12-09T11:47:45+03:30", "utc": "1937-12-09T08:17:45Z", "ms": -1011800535153.147 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 14:43 on Wed 8 Dec to 16:01 on Thu 9 Dec.", "fact": "1937-12-08T11:13:12Z → 1937-12-09T12:30:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 8th, 11:00–11:48 on the 9th.", "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 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10554 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Mashhad, 1937: Thursday 9 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "champa-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-09", "confidence": "determinate" } ], "quote": "In Mashhad, Campā Ṣaṣṭhī 1937 falls on Thursday 9 December. Ṣaṣṭhī runs from 14:43 on Wed 8 Dec to 16:01 on Thu 9 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/champa-shashthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10554, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-12-08T14:43:12+03:30", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "end": { "local": "1937-12-09T16:00:40+03:30", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-08T14:43:12+03:30", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "end": { "local": "1937-12-09T16:00:40+03:30", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-08", "window": { "start": { "local": "1937-12-08T10:59:18+03:30", "utc": "1937-12-08T07:29:18Z", "ms": -1011889842003.8894 }, "end": { "local": "1937-12-08T11:47:18+03:30", "utc": "1937-12-08T08:17:18Z", "ms": -1011886962003.8894 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-09", "window": { "start": { "local": "1937-12-09T10:59:45+03:30", "utc": "1937-12-09T07:29:45Z", "ms": -1011803415153.147 }, "end": { "local": "1937-12-09T11:47:45+03:30", "utc": "1937-12-09T08:17:45Z", "ms": -1011800535153.147 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 14:43 on Wed 8 Dec to 16:01 on Thu 9 Dec.", "fact": "1937-12-08T11:13:12Z → 1937-12-09T12:30:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 8th, 11:00–11:48 on the 9th.", "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 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10554 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Mashhad, 1937: Thursday 9 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-09", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Ṣaṣṭhī 1937 falls on Thursday 9 December. Ṣaṣṭhī runs from 14:43 on Wed 8 Dec to 16:01 on Thu 9 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/skanda-shashthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15175, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-12-09T16:00:40+03:30", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 }, "end": { "local": "1937-12-10T16:39:12+03:30", "utc": "1937-12-10T13:09:12Z", "ms": -1011696647576.8757 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-09T16:00:40+03:30", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 }, "end": { "local": "1937-12-10T16:39:12+03:30", "utc": "1937-12-10T13:09:12Z", "ms": -1011696647576.8757 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-09", "window": { "start": { "local": "1937-12-09T10:59:45+03:30", "utc": "1937-12-09T07:29:45Z", "ms": -1011803415153.147 }, "end": { "local": "1937-12-09T11:47:45+03:30", "utc": "1937-12-09T08:17:45Z", "ms": -1011800535153.147 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-10", "window": { "start": { "local": "1937-12-10T11:00:12+03:30", "utc": "1937-12-10T07:30:12Z", "ms": -1011716987867.348 }, "end": { "local": "1937-12-10T11:48:12+03:30", "utc": "1937-12-10T08:18:12Z", "ms": -1011714107867.348 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 16:01 on Thu 9 Dec to 16:39 on Fri 10 Dec.", "fact": "1937-12-09T12:30:40Z → 1937-12-10T13:09:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 9th, 11:00–11:48 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15175 s" }, { "step": "ruling", "text": "Mitra Saptamī, Mashhad, 1937: Friday 10 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mitra-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Mitra saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-10", "confidence": "determinate" } ], "quote": "In Mashhad, Mitra Saptamī 1937 falls on Friday 10 December. Saptamī runs from 16:01 on Thu 9 Dec to 16:39 on Fri 10 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1937/mitra-saptami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-12-14", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19155, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-12-13T14:09:41+03:30", "utc": "1937-12-13T10:39:41Z", "ms": -1011446418957.3805 }, "end": { "local": "1937-12-14T11:54:12+03:30", "utc": "1937-12-14T08:24:12Z", "ms": -1011368147588.0621 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-13T14:09:41+03:30", "utc": "1937-12-13T10:39:41Z", "ms": -1011446418957.3805 }, "end": { "local": "1937-12-14T11:54:12+03:30", "utc": "1937-12-14T08:24:12Z", "ms": -1011368147588.0621 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-12-13", "window": { "start": { "local": "1937-12-13T06:34:15+03:30", "utc": "1937-12-13T03:04:15Z", "ms": -1011473745451.7582 }, "end": { "local": "1937-12-13T06:34:15+03:30", "utc": "1937-12-13T03:04:15Z", "ms": -1011473745451.7582 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-12-14", "window": { "start": { "local": "1937-12-14T06:34:57+03:30", "utc": "1937-12-14T03:04:57Z", "ms": -1011387302566.6552 }, "end": { "local": "1937-12-14T06:34:57+03:30", "utc": "1937-12-14T03:04:57Z", "ms": -1011387302566.6552 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:10 on Mon 13 Dec to 11:54 on Tue 14 Dec.", "fact": "1937-12-13T10:39:41Z → 1937-12-14T08:24:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:34 on the 13th and 06:35 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19155 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Mashhad, 1937: Tuesday 14 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": "1937-12-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-14", "confidence": "determinate" } ], "quote": "In Mashhad, Mokṣadā Ekādaśī 1937 falls on Tuesday 14 December. Ekādaśī runs from 14:10 on Mon 13 Dec to 11:54 on Tue 14 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-12-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-15", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 247, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-12-14T11:54:12+03:30", "utc": "1937-12-14T08:24:12Z", "ms": -1011368147588.0621 }, "end": { "local": "1937-12-15T09:03:35+03:30", "utc": "1937-12-15T05:33:35Z", "ms": -1011291984991.317 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-14T11:54:12+03:30", "utc": "1937-12-14T08:24:12Z", "ms": -1011368147588.0621 }, "end": { "local": "1937-12-15T09:03:35+03:30", "utc": "1937-12-15T05:33:35Z", "ms": -1011291984991.317 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-14", "window": { "start": { "local": "1937-12-14T11:02:05+03:30", "utc": "1937-12-14T07:32:05Z", "ms": -1011371274988.7439 }, "end": { "local": "1937-12-14T11:50:05+03:30", "utc": "1937-12-14T08:20:05Z", "ms": -1011368394988.7439 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-15", "window": { "start": { "local": "1937-12-15T11:02:34+03:30", "utc": "1937-12-15T07:32:34Z", "ms": -1011284845986.6165 }, "end": { "local": "1937-12-15T11:50:34+03:30", "utc": "1937-12-15T08:20:34Z", "ms": -1011281965986.6165 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 11:54 on Tue 14 Dec to 09:04 on Wed 15 Dec.", "fact": "1937-12-14T08:24:12Z → 1937-12-15T05:33:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:02–11:50 on the 14th, 11:03–11:51 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 247 s < 300 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Mashhad, 1937: Wednesday 15 December.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "akhanda-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-14", "confidence": "determinate" } ], "quote": "In Mashhad, Akhaṇḍa Dvādaśī 1937 falls on Wednesday 15 December. Dvādaśī runs from 11:54 on Tue 14 Dec to 09:04 on Wed 15 Dec, and reaches madhyāhna on neither day. It is 4 min 07 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1937/akhanda-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-12-15", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26034, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-12-15T09:03:35+03:30", "utc": "1937-12-15T05:33:35Z", "ms": -1011291984991.317 }, "end": { "local": "1937-12-16T05:45:22+03:30", "utc": "1937-12-16T02:15:22Z", "ms": -1011217478228.4559 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-15T09:03:35+03:30", "utc": "1937-12-15T05:33:35Z", "ms": -1011291984991.317 }, "end": { "local": "1937-12-16T05:45:22+03:30", "utc": "1937-12-16T02:15:22Z", "ms": -1011217478228.4559 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-12-15", "window": { "start": { "local": "1937-12-15T16:17:29+03:30", "utc": "1937-12-15T12:47:29Z", "ms": -1011265950929.1304 }, "end": { "local": "1937-12-15T18:12:00+03:30", "utc": "1937-12-15T14:42:00Z", "ms": -1011259080261.9236 } }, "covered_min": 115, "window_min": 115, "qualifies": true }, { "local_date": "1937-12-16", "window": { "start": { "local": "1937-12-16T16:17:47+03:30", "utc": "1937-12-16T12:47:47Z", "ms": -1011179532534.8038 }, "end": { "local": "1937-12-16T18:12:21+03:30", "utc": "1937-12-16T14:42:21Z", "ms": -1011172659163.2975 } }, "covered_min": 0, "window_min": 115, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:04 on Wed 15 Dec to 05:45 on Thu 16 Dec.", "fact": "1937-12-15T05:33:35Z → 1937-12-16T02:15:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:17–18:12 on the 15th, 16:18–18:12 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 115 of 115 minutes on the 15th and 0 of 115 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 26034 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1937: Wednesday 15 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": "1937-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-15", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1937 falls on Wednesday 15 December. Trayodaśī runs from 09:04 on Wed 15 Dec to 05:45 on Thu 16 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/pradosha-vrata?on=1937-12-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14981, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-12-17T02:08:24+03:30", "utc": "1937-12-16T22:38:24Z", "ms": -1011144096456.4929 }, "end": { "local": "1937-12-17T22:22:24+03:30", "utc": "1937-12-17T18:52:24Z", "ms": -1011071255795.3451 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-17T02:08:24+03:30", "utc": "1937-12-16T22:38:24Z", "ms": -1011144096456.4929 }, "end": { "local": "1937-12-17T22:22:24+03:30", "utc": "1937-12-17T18:52:24Z", "ms": -1011071255795.3451 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-12-16", "window": { "start": { "local": "1937-12-16T16:17:47+03:30", "utc": "1937-12-16T12:47:47Z", "ms": -1011179532534.8038 }, "end": { "local": "1937-12-16T18:12:21+03:30", "utc": "1937-12-16T14:42:21Z", "ms": -1011172659163.2975 } }, "covered_min": 0, "window_min": 115, "qualifies": false }, { "local_date": "1937-12-17", "window": { "start": { "local": "1937-12-17T16:18:08+03:30", "utc": "1937-12-17T12:48:08Z", "ms": -1011093112244.9749 }, "end": { "local": "1937-12-17T18:12:43+03:30", "utc": "1937-12-17T14:42:43Z", "ms": -1011086236619.2107 } }, "covered_min": 115, "window_min": 115, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 02:08 on Fri 17 Dec to 22:22 on Fri 17 Dec.", "fact": "1937-12-16T22:38:24Z → 1937-12-17T18:52:24Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:18–18:12 on the 16th, 16:18–18:13 on the 17th.", "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 115 minutes on the 16th and 115 of 115 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 14981 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Mashhad, 1937: Friday 17 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dattatreyotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Dattatreyotpatti (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-17", "confidence": "determinate" } ], "quote": "In Mashhad, Dattātreyotpatti (Datta Jayanti) 1937 falls on Friday 17 December. Pūrṇimā runs from 02:08 on Fri 17 Dec to 22:22 on Fri 17 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1937/dattatreyotpatti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/sankashta-chaturthi?on=1937-12-20", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27844, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-12-20T11:53:40+03:30", "utc": "1937-12-20T08:23:40Z", "ms": -1010849780232.1842 }, "end": { "local": "1937-12-21T09:14:27+03:30", "utc": "1937-12-21T05:44:27Z", "ms": -1010772933025.8446 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-20T11:53:40+03:30", "utc": "1937-12-20T08:23:40Z", "ms": -1010849780232.1842 }, "end": { "local": "1937-12-21T09:14:27+03:30", "utc": "1937-12-21T05:44:27Z", "ms": -1010772933025.8446 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-12-20", "window": { "start": { "local": "1937-12-20T19:37:44+03:30", "utc": "1937-12-20T16:07:44Z", "ms": -1010821936479.885 }, "end": { "local": "1937-12-20T19:37:44+03:30", "utc": "1937-12-20T16:07:44Z", "ms": -1010821936479.885 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-12-21", "window": { "start": { "local": "1937-12-21T20:46:06+03:30", "utc": "1937-12-21T17:16:06Z", "ms": -1010731434206.3381 }, "end": { "local": "1937-12-21T20:46:06+03:30", "utc": "1937-12-21T17:16:06Z", "ms": -1010731434206.3381 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:54 on Mon 20 Dec to 09:14 on Tue 21 Dec.", "fact": "1937-12-20T08:23:40Z → 1937-12-21T05:44:27Z" }, { "step": "kaala", "text": "Moonrise is at 19:38 on the 20th and 20:46 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27844 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1937: Monday 20 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": "1937-12-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-20", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1937 falls on Monday 20 December. Caturthī runs from 11:54 on Mon 20 Dec to 09:14 on Tue 21 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/sankashta-chaturthi?on=1937-12-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/ekadashi?on=1937-12-28", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9482, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-12-27T09:19:59+03:30", "utc": "1937-12-27T05:49:59Z", "ms": -1010254201013.2058 }, "end": { "local": "1937-12-28T11:43:06+03:30", "utc": "1937-12-28T08:13:06Z", "ms": -1010159214477.5085 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-27T09:19:59+03:30", "utc": "1937-12-27T05:49:59Z", "ms": -1010254201013.2058 }, "end": { "local": "1937-12-28T11:43:06+03:30", "utc": "1937-12-28T08:13:06Z", "ms": -1010159214477.5085 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-12-27", "window": { "start": { "local": "1937-12-27T06:41:57+03:30", "utc": "1937-12-27T03:11:57Z", "ms": -1010263682681.096 }, "end": { "local": "1937-12-27T06:41:57+03:30", "utc": "1937-12-27T03:11:57Z", "ms": -1010263682681.096 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-12-28", "window": { "start": { "local": "1937-12-28T06:42:18+03:30", "utc": "1937-12-28T03:12:18Z", "ms": -1010177262178.2617 }, "end": { "local": "1937-12-28T06:42:18+03:30", "utc": "1937-12-28T03:12:18Z", "ms": -1010177262178.2617 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:20 on Mon 27 Dec to 11:43 on Tue 28 Dec.", "fact": "1937-12-27T05:49:59Z → 1937-12-28T08:13:06Z" }, { "step": "kaala", "text": "Sunrise is at 06:42 on the 27th and 06:42 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9482 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Mashhad, 1937: Tuesday 28 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": "1937-12-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-28", "confidence": "determinate" } ], "quote": "In Mashhad, Saphalā Ekādaśī 1937 falls on Tuesday 28 December. Ekādaśī runs from 09:20 on Mon 27 Dec to 11:43 on Tue 28 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1937/ekadashi?on=1937-12-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/pradosha-vrata?on=1937-12-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-29", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2715, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-12-29T14:23:34+03:30", "utc": "1937-12-29T10:53:34Z", "ms": -1010063185694.5133 }, "end": { "local": "1937-12-30T17:10:28+03:30", "utc": "1937-12-30T13:40:28Z", "ms": -1009966772023.8221 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-29T14:23:34+03:30", "utc": "1937-12-29T10:53:34Z", "ms": -1010063185694.5133 }, "end": { "local": "1937-12-30T17:10:28+03:30", "utc": "1937-12-30T13:40:28Z", "ms": -1009966772023.8221 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-12-29", "window": { "start": { "local": "1937-12-29T16:24:30+03:30", "utc": "1937-12-29T12:54:30Z", "ms": -1010055929728.0099 }, "end": { "local": "1937-12-29T18:18:57+03:30", "utc": "1937-12-29T14:48:57Z", "ms": -1010049062659.5726 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "1937-12-30", "window": { "start": { "local": "1937-12-30T16:25:13+03:30", "utc": "1937-12-30T12:55:13Z", "ms": -1009969487307.3961 }, "end": { "local": "1937-12-30T18:19:36+03:30", "utc": "1937-12-30T14:49:36Z", "ms": -1009962623906.8289 } }, "covered_min": 45, "window_min": 114, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:24 on Wed 29 Dec to 17:10 on Thu 30 Dec.", "fact": "1937-12-29T10:53:34Z → 1937-12-30T13:40:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:25–18:19 on the 29th, 16:25–18:20 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 114 of 114 minutes on the 29th and 45 of 114 on the 30th.", "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 2715 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1937: Wednesday 29 December.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-29", "confidence": "boundary" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1937 falls on Wednesday 29 December. Trayodaśī runs from 14:24 on Wed 29 Dec to 17:10 on Thu 30 Dec and covers all of pradoṣa that evening. It also reaches the next evening for 45 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/mashhad/festivals/1937/pradosha-vrata?on=1937-12-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1937/shivaratri?on=1937-12-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1937, "local_date": "1937-12-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11773, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-12-30T17:10:28+03:30", "utc": "1937-12-30T13:40:28Z", "ms": -1009966772023.8221 }, "end": { "local": "1937-12-31T19:54:25+03:30", "utc": "1937-12-31T16:24:25Z", "ms": -1009870534633.8624 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-30T17:10:28+03:30", "utc": "1937-12-30T13:40:28Z", "ms": -1009966772023.8221 }, "end": { "local": "1937-12-31T19:54:25+03:30", "utc": "1937-12-31T16:24:25Z", "ms": -1009870534633.8624 } }, "kaala": "nishita", "days": [ { "local_date": "1937-12-30", "window": { "start": { "local": "1937-12-30T23:10:10+03:30", "utc": "1937-12-30T19:40:10Z", "ms": -1009945189555.2688 }, "end": { "local": "1937-12-30T23:58:10+03:30", "utc": "1937-12-30T20:28:10Z", "ms": -1009942309555.2688 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-12-31", "window": { "start": { "local": "1937-12-31T23:10:39+03:30", "utc": "1937-12-31T19:40:39Z", "ms": -1009858761134.5254 }, "end": { "local": "1937-12-31T23:58:39+03:30", "utc": "1937-12-31T20:28:39Z", "ms": -1009855881134.5254 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:10 on Thu 30 Dec to 19:54 on Fri 31 Dec.", "fact": "1937-12-30T13:40:28Z → 1937-12-31T16:24:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:10–23:58 on the 30th, 23:11–23:59 on the 31st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11773 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1937: Thursday 30 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": "1937-12-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-30", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1937 falls on Thursday 30 December. Caturdaśī runs from 17:10 on Thu 30 Dec to 19:54 on Fri 31 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1937/shivaratri?on=1937-12-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }