{ "id": "/mashhad/festivals/2099", "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": 2099, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/mashhad/festivals/2099/ekadashi?on=2099-01-03", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25335, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-01-02T13:59:19+03:30", "utc": "2099-01-02T10:29:19Z", "ms": 4071032959458.0967 }, "end": { "local": "2099-01-03T13:45:59+03:30", "utc": "2099-01-03T10:15:59Z", "ms": 4071118559282.0713 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-01-02T13:59:19+03:30", "utc": "2099-01-02T10:29:19Z", "ms": 4071032959458.0967 }, "end": { "local": "2099-01-03T13:45:59+03:30", "utc": "2099-01-03T10:15:59Z", "ms": 4071118559282.0713 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-01-02", "window": { "start": { "local": "2099-01-02T06:43:37+03:30", "utc": "2099-01-02T03:13:37Z", "ms": 4071006817476.5664 }, "end": { "local": "2099-01-02T06:43:37+03:30", "utc": "2099-01-02T03:13:37Z", "ms": 4071006817476.5664 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-01-03", "window": { "start": { "local": "2099-01-03T06:43:45+03:30", "utc": "2099-01-03T03:13:45Z", "ms": 4071093224616.025 }, "end": { "local": "2099-01-03T06:43:45+03:30", "utc": "2099-01-03T03:13:45Z", "ms": 4071093224616.025 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:59 on Fri 2 Jan to 13:46 on Sat 3 Jan.", "fact": "2099-01-02T10:29:19Z → 2099-01-03T10:15:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:44 on the 2nd and 06:44 on the 3rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 2nd and is 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 25335 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Mashhad, 2099: Saturday 3 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": "2099-01-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-03", "confidence": "determinate" } ], "quote": "In Mashhad, Putradā Ekādaśī 2099 falls on Saturday 3 January. Ekādaśī runs from 13:59 on Fri 2 Jan to 13:46 on Sat 3 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-01-03", "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/2099/pradosha-vrata?on=2099-01-04", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13737, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-01-04T12:40:57+03:30", "utc": "2099-01-04T09:10:57Z", "ms": 4071201057101.4707 }, "end": { "local": "2099-01-05T10:49:32+03:30", "utc": "2099-01-05T07:19:32Z", "ms": 4071280772437.4473 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-01-04T12:40:57+03:30", "utc": "2099-01-04T09:10:57Z", "ms": 4071201057101.4707 }, "end": { "local": "2099-01-05T10:49:32+03:30", "utc": "2099-01-05T07:19:32Z", "ms": 4071280772437.4473 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-01-04", "window": { "start": { "local": "2099-01-04T16:29:54+03:30", "utc": "2099-01-04T12:59:54Z", "ms": 4071214794229.9995 }, "end": { "local": "2099-01-04T18:23:46+03:30", "utc": "2099-01-04T14:53:46Z", "ms": 4071221626061.888 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "2099-01-05", "window": { "start": { "local": "2099-01-05T16:30:45+03:30", "utc": "2099-01-05T13:00:45Z", "ms": 4071301245155.4185 }, "end": { "local": "2099-01-05T18:24:30+03:30", "utc": "2099-01-05T14:54:30Z", "ms": 4071308070358.0483 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:41 on Sun 4 Jan to 10:50 on Mon 5 Jan.", "fact": "2099-01-04T09:10:57Z → 2099-01-05T07:19:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:30–18:24 on the 4th, 16:31–18:25 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 114 of 114 minutes on the 4th and 0 of 114 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13737 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Sunday 4 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": "2099-01-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-04", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Sunday 4 January. Trayodaśī runs from 12:41 on Sun 4 Jan to 10:50 on Mon 5 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-01-04", "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/2099/sankashta-chaturthi?on=2099-01-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-09", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 352, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-01-09T19:29:22+03:30", "utc": "2099-01-09T15:59:22Z", "ms": 4071657562332.2896 }, "end": { "local": "2099-01-10T16:25:18+03:30", "utc": "2099-01-10T12:55:18Z", "ms": 4071732917617.183 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-09T19:29:22+03:30", "utc": "2099-01-09T15:59:22Z", "ms": 4071657562332.2896 }, "end": { "local": "2099-01-10T16:25:18+03:30", "utc": "2099-01-10T12:55:18Z", "ms": 4071732917617.183 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-01-09", "window": { "start": { "local": "2099-01-09T19:23:30+03:30", "utc": "2099-01-09T15:53:30Z", "ms": 4071657209899.0103 }, "end": { "local": "2099-01-09T19:23:30+03:30", "utc": "2099-01-09T15:53:30Z", "ms": 4071657209899.0103 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-01-10", "window": { "start": { "local": "2099-01-10T20:37:48+03:30", "utc": "2099-01-10T17:07:48Z", "ms": 4071748067923.66 }, "end": { "local": "2099-01-10T20:37:48+03:30", "utc": "2099-01-10T17:07:48Z", "ms": 4071748067923.66 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:29 on Fri 9 Jan to 16:25 on Sat 10 Jan.", "fact": "2099-01-09T15:59:22Z → 2099-01-10T12:55:18Z" }, { "step": "kaala", "text": "Moonrise is at 19:23 on the 9th and 20:38 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 9th and is not on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 352 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Friday 9 January.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-01-09", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-09", "confidence": "boundary" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Friday 9 January. Caturthī runs from 19:29 on Fri 9 Jan to 16:25 on Sat 10 Jan, and is current at moonrise on neither day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-01-09", "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/2099/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36871, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 }, "end": { "local": "2099-02-13T19:23:57+03:30", "utc": "2099-02-13T15:53:57Z", "ms": 4074681237461.224 } }, "span": { "of": "transit", "start": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 }, "end": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 } }, "kaala": "sunset-day", "days": [ { "local_date": "2099-01-15", "window": { "start": { "local": "2099-01-14T16:39:06+03:30", "utc": "2099-01-14T13:09:06Z", "ms": 4072079346449.8857 }, "end": { "local": "2099-01-15T16:40:06+03:30", "utc": "2099-01-15T13:10:06Z", "ms": 4072165806099.4956 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2099-01-16", "window": { "start": { "local": "2099-01-15T16:40:06+03:30", "utc": "2099-01-15T13:10:06Z", "ms": 4072165806099.4956 }, "end": { "local": "2099-01-16T16:41:06+03:30", "utc": "2099-01-16T13:11:06Z", "ms": 4072252266363.7617 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2099-01-15", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 06:26 on Thu 15 Jan.", "fact": "2099-01-15T02:55:35Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 15th ends at 16:40, and the day of the 16th ends at 16:41.", "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 14th and the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 36871 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Thursday 15 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Mashhad, 2099: Wednesday 14 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": "2099-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2099-01-14", "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": "2099-01-13", "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, Bhogi 2099 falls on Wednesday 14 January. It is kept the day before Pongal, which falls on Thursday 15 January. The Sun enters Makara at 06:26 on Thu 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36871, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 }, "end": { "local": "2099-02-13T19:23:57+03:30", "utc": "2099-02-13T15:53:57Z", "ms": 4074681237461.224 } }, "span": { "of": "transit", "start": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 }, "end": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 } }, "kaala": "sunset-day", "days": [ { "local_date": "2099-01-15", "window": { "start": { "local": "2099-01-14T16:39:06+03:30", "utc": "2099-01-14T13:09:06Z", "ms": 4072079346449.8857 }, "end": { "local": "2099-01-15T16:40:06+03:30", "utc": "2099-01-15T13:10:06Z", "ms": 4072165806099.4956 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2099-01-16", "window": { "start": { "local": "2099-01-15T16:40:06+03:30", "utc": "2099-01-15T13:10:06Z", "ms": 4072165806099.4956 }, "end": { "local": "2099-01-16T16:41:06+03:30", "utc": "2099-01-16T13:11:06Z", "ms": 4072252266363.7617 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 06:26 on Thu 15 Jan.", "fact": "2099-01-15T02:55:35Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 15th ends at 16:40, and the day of the 16th ends at 16:41.", "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 14th and the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 36871 s" }, { "step": "ruling", "text": "Pongal, Mashhad, 2099: Thursday 15 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": "2099-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2099-01-15", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2099-01-14", "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, Pongal 2099 falls on Thursday 15 January. The Sun enters Makara at 06:26 on Thu 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23135, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 }, "end": { "local": "2099-02-13T19:23:57+03:30", "utc": "2099-02-13T15:53:57Z", "ms": 4074681237461.224 } }, "span": { "of": "transit", "start": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 }, "end": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 } }, "kaala": "civil-day", "days": [ { "local_date": "2099-01-14", "window": { "start": { "local": "2099-01-14T00:00:00+03:30", "utc": "2099-01-13T20:30:00Z", "ms": 4072019400000 }, "end": { "local": "2099-01-15T00:00:00+03:30", "utc": "2099-01-14T20:30:00Z", "ms": 4072105800000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "2099-01-15", "window": { "start": { "local": "2099-01-15T00:00:00+03:30", "utc": "2099-01-14T20:30:00Z", "ms": 4072105800000 }, "end": { "local": "2099-01-16T00:00:00+03:30", "utc": "2099-01-15T20:30:00Z", "ms": 4072192200000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 06:26 on Thu 15 Jan.", "fact": "2099-01-15T02:55:35Z · 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 15th, 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 23135 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Mashhad, 2099: Thursday 15 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": "2099-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2099-01-14", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "2099-01-15", "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 2099 falls on Thursday 15 January. The Sun enters Makara at 06:26 on Thu 15 Jan, and the rule counts the day from midnight. Counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36871, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 }, "end": { "local": "2099-02-13T19:23:57+03:30", "utc": "2099-02-13T15:53:57Z", "ms": 4074681237461.224 } }, "span": { "of": "transit", "start": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 }, "end": { "local": "2099-01-15T06:25:35+03:30", "utc": "2099-01-15T02:55:35Z", "ms": 4072128935011.509 } }, "kaala": "sunset-day", "days": [ { "local_date": "2099-01-15", "window": { "start": { "local": "2099-01-14T16:39:06+03:30", "utc": "2099-01-14T13:09:06Z", "ms": 4072079346449.8857 }, "end": { "local": "2099-01-15T16:40:06+03:30", "utc": "2099-01-15T13:10:06Z", "ms": 4072165806099.4956 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2099-01-16", "window": { "start": { "local": "2099-01-15T16:40:06+03:30", "utc": "2099-01-15T13:10:06Z", "ms": 4072165806099.4956 }, "end": { "local": "2099-01-16T16:41:06+03:30", "utc": "2099-01-16T13:11:06Z", "ms": 4072252266363.7617 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2099-01-15", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 06:26 on Thu 15 Jan.", "fact": "2099-01-15T02:55:35Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 15th ends at 16:40, and the day of the 16th ends at 16:41.", "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 14th and the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 36871 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Thursday 15 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Mashhad, 2099: Friday 16 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": "2099-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-16", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2099-01-16", "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": "2099-01-15", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Mashhad, Mattu Pongal 2099 falls on Friday 16 January. It is kept the day after Pongal, which falls on Thursday 15 January. The Sun enters Makara at 06:26 on Thu 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from sunrise, as in Orissa, it is 15 January.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-01-17", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2766, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-01-16T07:28:24+03:30", "utc": "2099-01-16T03:58:24Z", "ms": 4072219104128.237 }, "end": { "local": "2099-01-17T07:42:37+03:30", "utc": "2099-01-17T04:12:37Z", "ms": 4072306356857.6353 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-16T07:28:24+03:30", "utc": "2099-01-16T03:58:24Z", "ms": 4072219104128.237 }, "end": { "local": "2099-01-17T07:42:37+03:30", "utc": "2099-01-17T04:12:37Z", "ms": 4072306356857.6353 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-01-16", "window": { "start": { "local": "2099-01-16T06:42:18+03:30", "utc": "2099-01-16T03:12:18Z", "ms": 4072216337868 }, "end": { "local": "2099-01-16T06:42:18+03:30", "utc": "2099-01-16T03:12:18Z", "ms": 4072216337868 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-01-17", "window": { "start": { "local": "2099-01-17T06:41:58+03:30", "utc": "2099-01-17T03:11:58Z", "ms": 4072302717535.7476 }, "end": { "local": "2099-01-17T06:41:58+03:30", "utc": "2099-01-17T03:11:58Z", "ms": 4072302717535.7476 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:28 on Fri 16 Jan to 07:43 on Sat 17 Jan.", "fact": "2099-01-16T03:58:24Z → 2099-01-17T04:12:37Z" }, { "step": "kaala", "text": "Sunrise is at 06:42 on the 16th and 06:42 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is 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 2766 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Mashhad, 2099: Saturday 17 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": "2099-01-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-17", "confidence": "determinate" } ], "quote": "In Mashhad, Ṣaṭtilā Ekādaśī 2099 falls on Saturday 17 January. Ekādaśī runs from 07:28 on Fri 16 Jan to 07:43 on Sat 17 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-01-17", "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/2099/pradosha-vrata?on=2099-01-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26330, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-01-18T08:22:07+03:30", "utc": "2099-01-18T04:52:07Z", "ms": 4072395127339.0264 }, "end": { "local": "2099-01-19T09:25:20+03:30", "utc": "2099-01-19T05:55:20Z", "ms": 4072485320265.767 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-18T08:22:07+03:30", "utc": "2099-01-18T04:52:07Z", "ms": 4072395127339.0264 }, "end": { "local": "2099-01-19T09:25:20+03:30", "utc": "2099-01-19T05:55:20Z", "ms": 4072485320265.767 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-01-18", "window": { "start": { "local": "2099-01-18T16:43:09+03:30", "utc": "2099-01-18T13:13:09Z", "ms": 4072425188535.4395 }, "end": { "local": "2099-01-18T18:34:53+03:30", "utc": "2099-01-18T15:04:53Z", "ms": 4072431892884.9263 } }, "covered_min": 112, "window_min": 112, "qualifies": true }, { "local_date": "2099-01-19", "window": { "start": { "local": "2099-01-19T16:44:10+03:30", "utc": "2099-01-19T13:14:10Z", "ms": 4072511650343.0693 }, "end": { "local": "2099-01-19T18:35:43+03:30", "utc": "2099-01-19T15:05:43Z", "ms": 4072518342982.06 } }, "covered_min": 0, "window_min": 112, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:22 on Sun 18 Jan to 09:25 on Mon 19 Jan.", "fact": "2099-01-18T04:52:07Z → 2099-01-19T05:55:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:43–18:35 on the 18th, 16:44–18:36 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 112 of 112 minutes on the 18th and 0 of 112 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 26330 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Sunday 18 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-18", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Sunday 18 January. Trayodaśī runs from 08:22 on Sun 18 Jan to 09:25 on Mon 19 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-01-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/shivaratri?on=2099-01-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33550, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-01-19T09:25:20+03:30", "utc": "2099-01-19T05:55:20Z", "ms": 4072485320265.767 }, "end": { "local": "2099-01-20T10:51:20+03:30", "utc": "2099-01-20T07:21:20Z", "ms": 4072576879581.6587 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-19T09:25:20+03:30", "utc": "2099-01-19T05:55:20Z", "ms": 4072485320265.767 }, "end": { "local": "2099-01-20T10:51:20+03:30", "utc": "2099-01-20T07:21:20Z", "ms": 4072576879581.6587 } }, "kaala": "nishita", "days": [ { "local_date": "2099-01-18", "window": { "start": { "local": "2099-01-18T23:18:10+03:30", "utc": "2099-01-18T19:48:10Z", "ms": 4072448889846.0146 }, "end": { "local": "2099-01-19T00:06:10+03:30", "utc": "2099-01-18T20:36:10Z", "ms": 4072451769846.0146 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-01-19", "window": { "start": { "local": "2099-01-19T23:18:28+03:30", "utc": "2099-01-19T19:48:28Z", "ms": 4072535307739.284 }, "end": { "local": "2099-01-20T00:06:28+03:30", "utc": "2099-01-19T20:36:28Z", "ms": 4072538187739.284 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:25 on Mon 19 Jan to 10:51 on Tue 20 Jan.", "fact": "2099-01-19T05:55:20Z → 2099-01-20T07:21:20Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:18–00:06 on the 18th, 23:18–00:06 on the 19th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33550 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Monday 19 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": "2099-01-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-19", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Monday 19 January. Caturdaśī runs from 09:25 on Mon 19 Jan to 10:51 on Tue 20 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-01-19", "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/2099/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9849, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-01-19T09:25:20+03:30", "utc": "2099-01-19T05:55:20Z", "ms": 4072485320265.767 }, "end": { "local": "2099-01-20T10:51:20+03:30", "utc": "2099-01-20T07:21:20Z", "ms": 4072576879581.6587 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-19T09:25:20+03:30", "utc": "2099-01-19T05:55:20Z", "ms": 4072485320265.767 }, "end": { "local": "2099-01-20T10:51:20+03:30", "utc": "2099-01-20T07:21:20Z", "ms": 4072576879581.6587 } }, "kaala": "arunodaya", "days": [ { "local_date": "2099-01-19", "window": { "start": { "local": "2099-01-19T04:49:27+03:30", "utc": "2099-01-19T01:19:27Z", "ms": 4072468766807.103 }, "end": { "local": "2099-01-19T06:41:11+03:30", "utc": "2099-01-19T03:11:11Z", "ms": 4072475471156.59 } }, "covered_min": 0, "window_min": 112, "qualifies": false }, { "local_date": "2099-01-20", "window": { "start": { "local": "2099-01-20T04:49:12+03:30", "utc": "2099-01-20T01:19:12Z", "ms": 4072555152496.508 }, "end": { "local": "2099-01-20T06:40:45+03:30", "utc": "2099-01-20T03:10:45Z", "ms": 4072561845135.4985 } }, "covered_min": 112, "window_min": 112, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:25 on Mon 19 Jan to 10:51 on Tue 20 Jan.", "fact": "2099-01-19T05:55:20Z → 2099-01-20T07:21:20Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:49–06:41 on the 19th, 04:49–06:41 on the 20th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 112 minutes on the 19th and 112 of 112 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9849 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Mashhad, 2099: Tuesday 20 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-01-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-20", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Tarpaṇa 2099 falls on Tuesday 20 January. Caturdaśī runs from 09:25 on Mon 19 Jan to 10:51 on Tue 20 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28126, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-01-24T19:56:50+03:30", "utc": "2099-01-24T16:26:50Z", "ms": 4072955210053.2715 }, "end": { "local": "2099-01-25T22:42:50+03:30", "utc": "2099-01-25T19:12:50Z", "ms": 4073051569596.6333 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-24T19:56:50+03:30", "utc": "2099-01-24T16:26:50Z", "ms": 4072955210053.2715 }, "end": { "local": "2099-01-25T22:42:50+03:30", "utc": "2099-01-25T19:12:50Z", "ms": 4073051569596.6333 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-01-24", "window": { "start": { "local": "2099-01-24T11:20:04+03:30", "utc": "2099-01-24T07:50:04Z", "ms": 4072924203605.79 }, "end": { "local": "2099-01-24T12:08:04+03:30", "utc": "2099-01-24T08:38:04Z", "ms": 4072927083605.79 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-01-25", "window": { "start": { "local": "2099-01-25T11:20:18+03:30", "utc": "2099-01-25T07:50:18Z", "ms": 4073010617815.9688 }, "end": { "local": "2099-01-25T12:08:18+03:30", "utc": "2099-01-25T08:38:18Z", "ms": 4073013497815.9688 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:57 on Sat 24 Jan to 22:43 on Sun 25 Jan.", "fact": "2099-01-24T16:26:50Z → 2099-01-25T19:12:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:20–12:08 on the 24th, 11:20–12:08 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 28126 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Mashhad, 2099: Sunday 25 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-01-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-25", "confidence": "determinate" } ], "quote": "In Mashhad, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2099 falls on Sunday 25 January. Caturthī runs from 19:57 on Sat 24 Jan to 22:43 on Sun 25 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4616, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-01-24T19:56:50+03:30", "utc": "2099-01-24T16:26:50Z", "ms": 4072955210053.2715 }, "end": { "local": "2099-01-25T22:42:50+03:30", "utc": "2099-01-25T19:12:50Z", "ms": 4073051569596.6333 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-24T19:56:50+03:30", "utc": "2099-01-24T16:26:50Z", "ms": 4072955210053.2715 }, "end": { "local": "2099-01-25T22:42:50+03:30", "utc": "2099-01-25T19:12:50Z", "ms": 4073051569596.6333 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-01-24", "window": { "start": { "local": "2099-01-24T16:49:25+03:30", "utc": "2099-01-24T13:19:25Z", "ms": 4072943964679.6357 }, "end": { "local": "2099-01-24T18:39:54+03:30", "utc": "2099-01-24T15:09:54Z", "ms": 4072950594367.8516 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "2099-01-25", "window": { "start": { "local": "2099-01-25T16:50:28+03:30", "utc": "2099-01-25T13:20:28Z", "ms": 4073030428290.6836 }, "end": { "local": "2099-01-25T18:40:45+03:30", "utc": "2099-01-25T15:10:45Z", "ms": 4073037044568.6655 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:57 on Sat 24 Jan to 22:43 on Sun 25 Jan.", "fact": "2099-01-24T16:26:50Z → 2099-01-25T19:12:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:49–18:40 on the 24th, 16:50–18:41 on the 25th.", "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 110 minutes on the 24th and 110 of 110 on the 25th.", "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 4616 s" }, { "step": "ruling", "text": "Tila Caturthī, Mashhad, 2099: Sunday 25 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-01-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-25", "confidence": "determinate" } ], "quote": "In Mashhad, Tila Caturthī 2099 falls on Sunday 25 January. Caturthī runs from 19:57 on Sat 24 Jan to 22:43 on Sun 25 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35874, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2099-01-25T22:42:50+03:30", "utc": "2099-01-25T19:12:50Z", "ms": 4073051569596.6333 }, "end": { "local": "2099-01-27T01:22:50+03:30", "utc": "2099-01-26T21:52:50Z", "ms": 4073147570073.622 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-25T22:42:50+03:30", "utc": "2099-01-25T19:12:50Z", "ms": 4073051569596.6333 }, "end": { "local": "2099-01-27T01:22:50+03:30", "utc": "2099-01-26T21:52:50Z", "ms": 4073147570073.622 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-01-26", "window": { "start": { "local": "2099-01-26T11:20:31+03:30", "utc": "2099-01-26T07:50:31Z", "ms": 4073097031213.5156 }, "end": { "local": "2099-01-26T12:08:31+03:30", "utc": "2099-01-26T08:38:31Z", "ms": 4073099911213.5156 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-01-27", "window": { "start": { "local": "2099-01-27T11:20:44+03:30", "utc": "2099-01-27T07:50:44Z", "ms": 4073183443790.5137 }, "end": { "local": "2099-01-27T12:08:44+03:30", "utc": "2099-01-27T08:38:44Z", "ms": 4073186323790.5137 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:43 on Sun 25 Jan to 01:23 on Tue 27 Jan.", "fact": "2099-01-25T19:12:50Z → 2099-01-26T21:52:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 26th, 11:21–12:09 on the 27th.", "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 26th and 0 of 48 on the 27th.", "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 35874 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Mashhad, 2099: Monday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-26", "confidence": "determinate" } ], "quote": "In Mashhad, Śrī Pañcamī 2099 falls on Monday 26 January. Pañcamī runs from 22:43 on Sun 25 Jan to 01:23 on Tue 27 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35874, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2099-01-25T22:42:50+03:30", "utc": "2099-01-25T19:12:50Z", "ms": 4073051569596.6333 }, "end": { "local": "2099-01-27T01:22:50+03:30", "utc": "2099-01-26T21:52:50Z", "ms": 4073147570073.622 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-25T22:42:50+03:30", "utc": "2099-01-25T19:12:50Z", "ms": 4073051569596.6333 }, "end": { "local": "2099-01-27T01:22:50+03:30", "utc": "2099-01-26T21:52:50Z", "ms": 4073147570073.622 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-01-26", "window": { "start": { "local": "2099-01-26T11:20:31+03:30", "utc": "2099-01-26T07:50:31Z", "ms": 4073097031213.5156 }, "end": { "local": "2099-01-26T12:08:31+03:30", "utc": "2099-01-26T08:38:31Z", "ms": 4073099911213.5156 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-01-27", "window": { "start": { "local": "2099-01-27T11:20:44+03:30", "utc": "2099-01-27T07:50:44Z", "ms": 4073183443790.5137 }, "end": { "local": "2099-01-27T12:08:44+03:30", "utc": "2099-01-27T08:38:44Z", "ms": 4073186323790.5137 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:43 on Sun 25 Jan to 01:23 on Tue 27 Jan.", "fact": "2099-01-25T19:12:50Z → 2099-01-26T21:52:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 26th, 11:21–12:09 on the 27th.", "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 26th and 0 of 48 on the 27th.", "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 35874 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Mashhad, 2099: Monday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-26", "confidence": "determinate" } ], "quote": "In Mashhad, Vasanta Pañcamī 2099 falls on Monday 26 January. Pañcamī runs from 22:43 on Sun 25 Jan to 01:23 on Tue 27 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-01-28", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2775, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2099-01-28T03:43:42+03:30", "utc": "2099-01-28T00:13:42Z", "ms": 4073242422434.03 }, "end": { "local": "2099-01-29T05:32:10+03:30", "utc": "2099-01-29T02:02:10Z", "ms": 4073335329805.8286 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-01-28T03:43:42+03:30", "utc": "2099-01-28T00:13:42Z", "ms": 4073242422434.03 }, "end": { "local": "2099-01-29T05:32:10+03:30", "utc": "2099-01-29T02:02:10Z", "ms": 4073335329805.8286 } }, "kaala": "arunodaya", "days": [ { "local_date": "2099-01-28", "window": { "start": { "local": "2099-01-28T04:46:23+03:30", "utc": "2099-01-28T01:16:23Z", "ms": 4073246182506.8535 }, "end": { "local": "2099-01-28T06:36:11+03:30", "utc": "2099-01-28T03:06:11Z", "ms": 4073252771212.015 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "2099-01-29", "window": { "start": { "local": "2099-01-29T04:45:55+03:30", "utc": "2099-01-29T01:15:55Z", "ms": 4073332554504.6685 }, "end": { "local": "2099-01-29T06:35:29+03:30", "utc": "2099-01-29T03:05:29Z", "ms": 4073339129063.973 } }, "covered_min": 46, "window_min": 110, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:44 on Wed 28 Jan to 05:32 on Thu 29 Jan.", "fact": "2099-01-28T00:13:42Z → 2099-01-29T02:02:10Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:46–06:36 on the 28th, 04:46–06:35 on the 29th.", "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 110 of 110 minutes on the 28th and 46 of 110 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both dawns qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2775 s" }, { "step": "ruling", "text": "Ratha Saptamī, Mashhad, 2099: Wednesday 28 January.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2099-01-28", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-01-28", "confidence": "boundary" } ], "quote": "In Mashhad, Ratha Saptamī 2099 falls on Wednesday 28 January. Saptamī runs from 03:44 on Wed 28 Jan to 05:32 on Thu 29 Jan and covers all of aruṇodaya that dawn. It also reaches the next dawn for 46 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/2099/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/2099/ekadashi?on=2099-02-01", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1354, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-02-01T06:10:39+03:30", "utc": "2099-02-01T02:40:39Z", "ms": 4073596838601.9097 }, "end": { "local": "2099-02-02T04:38:41+03:30", "utc": "2099-02-02T01:08:41Z", "ms": 4073677721329.424 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-02-01T06:10:39+03:30", "utc": "2099-02-01T02:40:39Z", "ms": 4073596838601.9097 }, "end": { "local": "2099-02-02T04:38:41+03:30", "utc": "2099-02-02T01:08:41Z", "ms": 4073677721329.424 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-02-01", "window": { "start": { "local": "2099-02-01T06:33:13+03:30", "utc": "2099-02-01T03:03:13Z", "ms": 4073598192680.609 }, "end": { "local": "2099-02-01T06:33:13+03:30", "utc": "2099-02-01T03:03:13Z", "ms": 4073598192680.609 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-02-02", "window": { "start": { "local": "2099-02-02T06:32:24+03:30", "utc": "2099-02-02T03:02:24Z", "ms": 4073684544004.526 }, "end": { "local": "2099-02-02T06:32:24+03:30", "utc": "2099-02-02T03:02:24Z", "ms": 4073684544004.526 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:11 on Sun 1 Feb to 04:39 on Mon 2 Feb.", "fact": "2099-02-01T02:40:39Z → 2099-02-02T01:08:41Z" }, { "step": "kaala", "text": "Sunrise is at 06:33 on the 1st and 06:32 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1354 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Mashhad, 2099: Sunday 1 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": "2099-02-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-01", "confidence": "determinate" } ], "quote": "In Mashhad, Jayā Ekādaśī 2099 falls on Sunday 1 February. Ekādaśī runs from 06:11 on Sun 1 Feb to 04:39 on Mon 2 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-02-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24180, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2099-02-02T04:38:41+03:30", "utc": "2099-02-02T01:08:41Z", "ms": 4073677721329.424 }, "end": { "local": "2099-02-03T02:20:31+03:30", "utc": "2099-02-02T22:50:31Z", "ms": 4073755831375.206 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-02-02T04:38:41+03:30", "utc": "2099-02-02T01:08:41Z", "ms": 4073677721329.424 }, "end": { "local": "2099-02-03T02:20:31+03:30", "utc": "2099-02-02T22:50:31Z", "ms": 4073755831375.206 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-02-02", "window": { "start": { "local": "2099-02-02T11:21:42+03:30", "utc": "2099-02-02T07:51:42Z", "ms": 4073701901777.706 }, "end": { "local": "2099-02-02T12:09:42+03:30", "utc": "2099-02-02T08:39:42Z", "ms": 4073704781777.706 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-02-03", "window": { "start": { "local": "2099-02-03T11:21:49+03:30", "utc": "2099-02-03T07:51:49Z", "ms": 4073788308525.0127 }, "end": { "local": "2099-02-03T12:09:49+03:30", "utc": "2099-02-03T08:39:49Z", "ms": 4073791188525.0127 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 04:39 on Mon 2 Feb to 02:21 on Tue 3 Feb.", "fact": "2099-02-02T01:08:41Z → 2099-02-02T22:50:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 2nd, 11:22–12:10 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24180 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Mashhad, 2099: Monday 2 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": "2099-02-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-02", "confidence": "determinate" } ], "quote": "In Mashhad, Bhīṣma Dvādaśī 2099 falls on Monday 2 February. Dvādaśī runs from 04:39 on Mon 2 Feb to 02:21 on Tue 3 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pradosha-vrata?on=2099-02-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16586, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-02-03T02:20:31+03:30", "utc": "2099-02-02T22:50:31Z", "ms": 4073755831375.206 }, "end": { "local": "2099-02-03T23:24:34+03:30", "utc": "2099-02-03T19:54:34Z", "ms": 4073831674357.7856 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-02-03T02:20:31+03:30", "utc": "2099-02-02T22:50:31Z", "ms": 4073755831375.206 }, "end": { "local": "2099-02-03T23:24:34+03:30", "utc": "2099-02-03T19:54:34Z", "ms": 4073831674357.7856 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-02-02", "window": { "start": { "local": "2099-02-02T16:59:00+03:30", "utc": "2099-02-02T13:29:00Z", "ms": 4073722139550.886 }, "end": { "local": "2099-02-02T18:47:20+03:30", "utc": "2099-02-02T15:17:20Z", "ms": 4073728640113.8633 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2099-02-03", "window": { "start": { "local": "2099-02-03T17:00:03+03:30", "utc": "2099-02-03T13:30:03Z", "ms": 4073808603276.813 }, "end": { "local": "2099-02-03T18:48:08+03:30", "utc": "2099-02-03T15:18:08Z", "ms": 4073815088442.5186 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:21 on Tue 3 Feb to 23:25 on Tue 3 Feb.", "fact": "2099-02-02T22:50:31Z → 2099-02-03T19:54:34Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:59–18:47 on the 2nd, 17:00–18:48 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 108 minutes on the 2nd and 108 of 108 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16586 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Tuesday 3 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": "2099-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-03", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Tuesday 3 February. Trayodaśī runs from 02:21 on Tue 3 Feb to 23:25 on Tue 3 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-02-03", "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/2099/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15041, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-02-04T20:00:58+03:30", "utc": "2099-02-04T16:30:58Z", "ms": 4073905857862.094 }, "end": { "local": "2099-02-05T16:20:40+03:30", "utc": "2099-02-05T12:50:40Z", "ms": 4073979040276.258 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2099-02-04T20:00:58+03:30", "utc": "2099-02-04T16:30:58Z", "ms": 4073905857862.094 }, "end": { "local": "2099-02-05T16:20:40+03:30", "utc": "2099-02-05T12:50:40Z", "ms": 4073979040276.258 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-02-04", "window": { "start": { "local": "2099-02-04T11:21:54+03:30", "utc": "2099-02-04T07:51:54Z", "ms": 4073874714448.6895 }, "end": { "local": "2099-02-04T12:09:54+03:30", "utc": "2099-02-04T08:39:54Z", "ms": 4073877594448.6895 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-02-05", "window": { "start": { "local": "2099-02-05T11:22:00+03:30", "utc": "2099-02-05T07:52:00Z", "ms": 4073961119556.7446 }, "end": { "local": "2099-02-05T12:10:00+03:30", "utc": "2099-02-05T08:40:00Z", "ms": 4073963999556.7446 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 20:01 on Wed 4 Feb to 16:21 on Thu 5 Feb.", "fact": "2099-02-04T16:30:58Z → 2099-02-05T12:50:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 4th, 11:22–12:10 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15041 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Mashhad, 2099: Thursday 5 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maghi-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Maghi purnima (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-05", "confidence": "determinate" } ], "quote": "In Mashhad, Māghī Pūrṇimā 2099 falls on Thursday 5 February. Pūrṇimā runs from 20:01 on Wed 4 Feb to 16:21 on Thu 5 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-02-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20844, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-02-08T05:29:28+03:30", "utc": "2099-02-08T01:59:28Z", "ms": 4074199167943.9824 }, "end": { "local": "2099-02-09T02:29:03+03:30", "utc": "2099-02-08T22:59:03Z", "ms": 4074274742726.3516 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-02-08T05:29:28+03:30", "utc": "2099-02-08T01:59:28Z", "ms": 4074199167943.9824 }, "end": { "local": "2099-02-09T02:29:03+03:30", "utc": "2099-02-08T22:59:03Z", "ms": 4074274742726.3516 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-02-07", "window": { "start": { "local": "2099-02-07T19:28:46+03:30", "utc": "2099-02-07T15:58:46Z", "ms": 4074163126136.202 }, "end": { "local": "2099-02-07T19:28:46+03:30", "utc": "2099-02-07T15:58:46Z", "ms": 4074163126136.202 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-02-08", "window": { "start": { "local": "2099-02-08T20:41:39+03:30", "utc": "2099-02-08T17:11:39Z", "ms": 4074253899116.507 }, "end": { "local": "2099-02-08T20:41:39+03:30", "utc": "2099-02-08T17:11:39Z", "ms": 4074253899116.507 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:29 on Sun 8 Feb to 02:29 on Mon 9 Feb.", "fact": "2099-02-08T01:59:28Z → 2099-02-08T22:59:03Z" }, { "step": "kaala", "text": "Moonrise is at 19:29 on the 7th and 20:42 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 7th and is on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20844 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Sunday 8 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": "2099-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-08", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Sunday 8 February. Caturthī runs from 05:29 on Sun 8 Feb to 02:29 on Mon 9 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-02-08", "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/2099/ekadashi?on=2099-02-15", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26999, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-02-14T21:29:30+03:30", "utc": "2099-02-14T17:59:30Z", "ms": 4074775170094.072 }, "end": { "local": "2099-02-15T22:48:35+03:30", "utc": "2099-02-15T19:18:35Z", "ms": 4074866314979.4834 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-02-14T21:29:30+03:30", "utc": "2099-02-14T17:59:30Z", "ms": 4074775170094.072 }, "end": { "local": "2099-02-15T22:48:35+03:30", "utc": "2099-02-15T19:18:35Z", "ms": 4074866314979.4834 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-02-15", "window": { "start": { "local": "2099-02-15T06:19:42+03:30", "utc": "2099-02-15T02:49:42Z", "ms": 4074806981821.81 }, "end": { "local": "2099-02-15T06:19:42+03:30", "utc": "2099-02-15T02:49:42Z", "ms": 4074806981821.81 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-02-16", "window": { "start": { "local": "2099-02-16T06:18:34+03:30", "utc": "2099-02-16T02:48:34Z", "ms": 4074893314387.794 }, "end": { "local": "2099-02-16T06:18:34+03:30", "utc": "2099-02-16T02:48:34Z", "ms": 4074893314387.794 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:30 on Sat 14 Feb to 22:49 on Sun 15 Feb.", "fact": "2099-02-14T17:59:30Z → 2099-02-15T19:18:35Z" }, { "step": "kaala", "text": "Sunrise is at 06:20 on the 15th and 06:19 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26999 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Mashhad, 2099: Sunday 15 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-15", "confidence": "determinate" } ], "quote": "In Mashhad, Vijayā Ekādaśī 2099 falls on Sunday 15 February. Ekādaśī runs from 21:30 on Sat 14 Feb to 22:49 on Sun 15 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-02-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-02-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20154, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-02-17T00:34:00+03:30", "utc": "2099-02-16T21:04:00Z", "ms": 4074959040267.682 }, "end": { "local": "2099-02-18T02:40:35+03:30", "utc": "2099-02-17T23:10:35Z", "ms": 4075053035073.0957 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-02-17T00:34:00+03:30", "utc": "2099-02-16T21:04:00Z", "ms": 4074959040267.682 }, "end": { "local": "2099-02-18T02:40:35+03:30", "utc": "2099-02-17T23:10:35Z", "ms": 4075053035073.0957 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-02-16", "window": { "start": { "local": "2099-02-16T17:13:35+03:30", "utc": "2099-02-16T13:43:35Z", "ms": 4074932615306.874 }, "end": { "local": "2099-02-16T18:58:06+03:30", "utc": "2099-02-16T15:28:06Z", "ms": 4074938886046.49 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "2099-02-17", "window": { "start": { "local": "2099-02-17T17:14:36+03:30", "utc": "2099-02-17T13:44:36Z", "ms": 4075019076062.2407 }, "end": { "local": "2099-02-17T18:58:49+03:30", "utc": "2099-02-17T15:28:49Z", "ms": 4075025329420.726 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:34 on Tue 17 Feb to 02:41 on Wed 18 Feb.", "fact": "2099-02-16T21:04:00Z → 2099-02-17T23:10:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:14–18:58 on the 16th, 17:15–18:59 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 105 minutes on the 16th and 104 of 104 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20154 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Tuesday 17 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": "2099-02-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-17", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Tuesday 17 February. Trayodaśī runs from 00:34 on Tue 17 Feb to 02:41 on Wed 18 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-02-17", "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/2099/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9069, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-02-18T02:40:35+03:30", "utc": "2099-02-17T23:10:35Z", "ms": 4075053035073.0957 }, "end": { "local": "2099-02-19T05:03:26+03:30", "utc": "2099-02-19T01:33:26Z", "ms": 4075148005736.2603 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-02-18T02:40:35+03:30", "utc": "2099-02-17T23:10:35Z", "ms": 4075053035073.0957 }, "end": { "local": "2099-02-19T05:03:26+03:30", "utc": "2099-02-19T01:33:26Z", "ms": 4075148005736.2603 } }, "kaala": "nishita", "days": [ { "local_date": "2099-02-17", "window": { "start": { "local": "2099-02-17T23:21:26+03:30", "utc": "2099-02-17T19:51:26Z", "ms": 4075041086156.56 }, "end": { "local": "2099-02-18T00:09:26+03:30", "utc": "2099-02-17T20:39:26Z", "ms": 4075043966156.56 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-02-18", "window": { "start": { "local": "2099-02-18T23:21:21+03:30", "utc": "2099-02-18T19:51:21Z", "ms": 4075127481061.3745 }, "end": { "local": "2099-02-19T00:09:21+03:30", "utc": "2099-02-18T20:39:21Z", "ms": 4075130361061.3745 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:41 on Wed 18 Feb to 05:03 on Thu 19 Feb.", "fact": "2099-02-17T23:10:35Z → 2099-02-19T01:33:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:21–00:09 on the 17th, 23:21–00:09 on the 18th.", "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 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 9069 s" }, { "step": "ruling", "text": "Mahāśivarātri, Mashhad, 2099: Wednesday 18 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-02-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-18", "confidence": "determinate" } ], "quote": "In Mashhad, Mahāśivarātri 2099 falls on Wednesday 18 February. Caturdaśī runs from 02:41 on Wed 18 Feb to 05:03 on Thu 19 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vinayaka-chaturthi?on=2099-02-24", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-02-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12261, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-02-23T15:33:44+03:30", "utc": "2099-02-23T12:03:44Z", "ms": 4075531424293.4443 }, "end": { "local": "2099-02-24T17:52:20+03:30", "utc": "2099-02-24T14:22:20Z", "ms": 4075626140042.332 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-02-23T15:33:44+03:30", "utc": "2099-02-23T12:03:44Z", "ms": 4075531424293.4443 }, "end": { "local": "2099-02-24T17:52:20+03:30", "utc": "2099-02-24T14:22:20Z", "ms": 4075626140042.332 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-02-23", "window": { "start": { "local": "2099-02-23T11:21:24+03:30", "utc": "2099-02-23T07:51:24Z", "ms": 4075516283595.9717 }, "end": { "local": "2099-02-23T12:09:24+03:30", "utc": "2099-02-23T08:39:24Z", "ms": 4075519163595.9717 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-02-24", "window": { "start": { "local": "2099-02-24T11:21:15+03:30", "utc": "2099-02-24T07:51:15Z", "ms": 4075602675142.9717 }, "end": { "local": "2099-02-24T12:09:15+03:30", "utc": "2099-02-24T08:39:15Z", "ms": 4075605555142.9717 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:34 on Mon 23 Feb to 17:52 on Tue 24 Feb.", "fact": "2099-02-23T12:03:44Z → 2099-02-24T14:22:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 23rd, 11:21–12:09 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12261 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Tuesday 24 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-02-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-02-24", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Tuesday 24 February. Caturthī runs from 15:34 on Mon 23 Feb to 17:52 on Tue 24 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-02-24", "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/2099/ekadashi?on=2099-03-03", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37678, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-03-02T18:53:18+03:30", "utc": "2099-03-02T15:23:18Z", "ms": 4076148198320.433 }, "end": { "local": "2099-03-03T16:27:46+03:30", "utc": "2099-03-03T12:57:46Z", "ms": 4076225866075.4766 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-03-02T18:53:18+03:30", "utc": "2099-03-02T15:23:18Z", "ms": 4076148198320.433 }, "end": { "local": "2099-03-03T16:27:46+03:30", "utc": "2099-03-03T12:57:46Z", "ms": 4076225866075.4766 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-03-02", "window": { "start": { "local": "2099-03-02T06:01:09+03:30", "utc": "2099-03-02T02:31:09Z", "ms": 4076101868693.757 }, "end": { "local": "2099-03-02T06:01:09+03:30", "utc": "2099-03-02T02:31:09Z", "ms": 4076101868693.757 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-03-03", "window": { "start": { "local": "2099-03-03T05:59:48+03:30", "utc": "2099-03-03T02:29:48Z", "ms": 4076188187978.575 }, "end": { "local": "2099-03-03T05:59:48+03:30", "utc": "2099-03-03T02:29:48Z", "ms": 4076188187978.575 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:53 on Mon 2 Mar to 16:28 on Tue 3 Mar.", "fact": "2099-03-02T15:23:18Z → 2099-03-03T12:57:46Z" }, { "step": "kaala", "text": "Sunrise is at 06:01 on the 2nd and 06:00 on the 3rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 2nd and is 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 37678 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Mashhad, 2099: Tuesday 3 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": "2099-03-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-03", "confidence": "determinate" } ], "quote": "In Mashhad, Āmalakī Ekādaśī 2099 falls on Tuesday 3 March. Ekādaśī runs from 18:53 on Mon 2 Mar to 16:28 on Tue 3 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-03-03", "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/2099/pradosha-vrata?on=2099-03-04", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14491, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-03-04T13:27:37+03:30", "utc": "2099-03-04T09:57:37Z", "ms": 4076301456902.2104 }, "end": { "local": "2099-03-05T10:01:37+03:30", "utc": "2099-03-05T06:31:37Z", "ms": 4076375497214.373 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-03-04T13:27:37+03:30", "utc": "2099-03-04T09:57:37Z", "ms": 4076301456902.2104 }, "end": { "local": "2099-03-05T10:01:37+03:30", "utc": "2099-03-05T06:31:37Z", "ms": 4076375497214.373 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-03-04", "window": { "start": { "local": "2099-03-04T17:29:08+03:30", "utc": "2099-03-04T13:59:08Z", "ms": 4076315947889.4 }, "end": { "local": "2099-03-04T19:08:51+03:30", "utc": "2099-03-04T15:38:51Z", "ms": 4076321931462.0757 } }, "covered_min": 100, "window_min": 100, "qualifies": true }, { "local_date": "2099-03-05", "window": { "start": { "local": "2099-03-05T17:30:03+03:30", "utc": "2099-03-05T14:00:03Z", "ms": 4076402403340.889 }, "end": { "local": "2099-03-05T19:09:29+03:30", "utc": "2099-03-05T15:39:29Z", "ms": 4076408368518.459 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:28 on Wed 4 Mar to 10:02 on Thu 5 Mar.", "fact": "2099-03-04T09:57:37Z → 2099-03-05T06:31:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:29–19:09 on the 4th, 17:30–19:09 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 100 of 100 minutes on the 4th and 0 of 99 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14491 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Wednesday 4 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": "2099-03-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-04", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Wednesday 4 March. Trayodaśī runs from 13:28 on Wed 4 Mar to 10:02 on Thu 5 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-03-04", "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/2099/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31942, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-03-06T06:19:34+03:30", "utc": "2099-03-06T02:49:34Z", "ms": 4076448573544.8037 }, "end": { "local": "2099-03-07T02:31:42+03:30", "utc": "2099-03-06T23:01:42Z", "ms": 4076521302114.6445 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-03-06T06:19:34+03:30", "utc": "2099-03-06T02:49:34Z", "ms": 4076448573544.8037 }, "end": { "local": "2099-03-07T02:31:42+03:30", "utc": "2099-03-06T23:01:42Z", "ms": 4076521302114.6445 } }, "kaala": "sayahna", "days": [ { "local_date": "2099-03-06", "window": { "start": { "local": "2099-03-06T15:11:55+03:30", "utc": "2099-03-06T11:41:55Z", "ms": 4076480515229.1104 }, "end": { "local": "2099-03-06T17:30:58+03:30", "utc": "2099-03-06T14:00:58Z", "ms": 4076488858493.222 } }, "covered_min": 139, "window_min": 139, "qualifies": true }, { "local_date": "2099-03-07", "window": { "start": { "local": "2099-03-07T15:12:23+03:30", "utc": "2099-03-07T11:42:23Z", "ms": 4076566942514.948 }, "end": { "local": "2099-03-07T17:31:53+03:30", "utc": "2099-03-07T14:01:53Z", "ms": 4076575313361.421 } }, "covered_min": 0, "window_min": 140, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:20 on Fri 6 Mar to 02:32 on Sat 7 Mar.", "fact": "2099-03-06T02:49:34Z → 2099-03-06T23:01:42Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:12–17:31 on the 6th, 15:12–17:32 on the 7th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 139 of 139 minutes on the 6th and 0 of 140 on the 7th.", "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 31942 s" }, { "step": "ruling", "text": "Holikā Dahana, Mashhad, 2099: Friday 6 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": "2099-03-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-06", "confidence": "determinate" } ], "quote": "In Mashhad, Holikā Dahana 2099 falls on Friday 6 March. Pūrṇimā runs from 06:20 on Fri 6 Mar to 02:32 on Sat 7 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31942, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-03-06T06:19:34+03:30", "utc": "2099-03-06T02:49:34Z", "ms": 4076448573544.8037 }, "end": { "local": "2099-03-07T02:31:42+03:30", "utc": "2099-03-06T23:01:42Z", "ms": 4076521302114.6445 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2099-03-06T06:19:34+03:30", "utc": "2099-03-06T02:49:34Z", "ms": 4076448573544.8037 }, "end": { "local": "2099-03-07T02:31:42+03:30", "utc": "2099-03-06T23:01:42Z", "ms": 4076521302114.6445 } }, "kaala": "sayahna", "days": [ { "local_date": "2099-03-06", "window": { "start": { "local": "2099-03-06T15:11:55+03:30", "utc": "2099-03-06T11:41:55Z", "ms": 4076480515229.1104 }, "end": { "local": "2099-03-06T17:30:58+03:30", "utc": "2099-03-06T14:00:58Z", "ms": 4076488858493.222 } }, "covered_min": 139, "window_min": 139, "qualifies": true }, { "local_date": "2099-03-07", "window": { "start": { "local": "2099-03-07T15:12:23+03:30", "utc": "2099-03-07T11:42:23Z", "ms": 4076566942514.948 }, "end": { "local": "2099-03-07T17:31:53+03:30", "utc": "2099-03-07T14:01:53Z", "ms": 4076575313361.421 } }, "covered_min": 0, "window_min": 140, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2099-03-06", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:20 on Fri 6 Mar to 02:32 on Sat 7 Mar.", "fact": "2099-03-06T02:49:34Z → 2099-03-06T23:01:42Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:12–17:31 on the 6th, 15:12–17:32 on the 7th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 139 of 139 minutes on the 6th and 0 of 140 on the 7th.", "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 31942 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Friday 6 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Mashhad, 2099: Saturday 7 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": "2099-03-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-07", "confidence": "determinate" } ], "quote": "In Mashhad, Holī 2099 falls on Saturday 7 March. It is kept the day after Holikā Dahana, which falls on Friday 6 March. Pūrṇimā runs from 06:20 on Fri 6 Mar to 02:32 on Sat 7 Mar and covers all of sāyāhna on the 6th.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12157, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2099-03-07T02:31:42+03:30", "utc": "2099-03-06T23:01:42Z", "ms": 4076521302114.6445 }, "end": { "local": "2099-03-07T22:48:25+03:30", "utc": "2099-03-07T19:18:25Z", "ms": 4076594304925.943 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-07T02:31:42+03:30", "utc": "2099-03-06T23:01:42Z", "ms": 4076521302114.6445 }, "end": { "local": "2099-03-07T22:48:25+03:30", "utc": "2099-03-07T19:18:25Z", "ms": 4076594304925.943 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-03-07", "window": { "start": { "local": "2099-03-07T05:54:19+03:30", "utc": "2099-03-07T02:24:19Z", "ms": 4076533459129.0586 }, "end": { "local": "2099-03-07T05:54:19+03:30", "utc": "2099-03-07T02:24:19Z", "ms": 4076533459129.0586 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-03-08", "window": { "start": { "local": "2099-03-08T05:52:56+03:30", "utc": "2099-03-08T02:22:56Z", "ms": 4076619775586.9155 }, "end": { "local": "2099-03-08T05:52:56+03:30", "utc": "2099-03-08T02:22:56Z", "ms": 4076619775586.9155 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:32 on Sat 7 Mar to 22:48 on Sat 7 Mar.", "fact": "2099-03-06T23:01:42Z → 2099-03-07T19:18:25Z" }, { "step": "kaala", "text": "Sunrise is at 05:54 on the 7th and 05:53 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā 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: purvaviddha → only-day · margin 12157 s" }, { "step": "ruling", "text": "Vasantotsava, Mashhad, 2099: Saturday 7 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": "2099-03-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-07", "confidence": "determinate" } ], "quote": "In Mashhad, Vasantotsava 2099 falls on Saturday 7 March. Pratipadā runs from 02:32 on Sat 7 Mar to 22:48 on Sat 7 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-03-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16012, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-03-09T16:15:27+03:30", "utc": "2099-03-09T12:45:27Z", "ms": 4076743527039.7295 }, "end": { "local": "2099-03-10T13:43:50+03:30", "utc": "2099-03-10T10:13:50Z", "ms": 4076820830108.0254 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-09T16:15:27+03:30", "utc": "2099-03-09T12:45:27Z", "ms": 4076743527039.7295 }, "end": { "local": "2099-03-10T13:43:50+03:30", "utc": "2099-03-10T10:13:50Z", "ms": 4076820830108.0254 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-03-09", "window": { "start": { "local": "2099-03-09T20:42:19+03:30", "utc": "2099-03-09T17:12:19Z", "ms": 4076759539103.97 }, "end": { "local": "2099-03-09T20:42:19+03:30", "utc": "2099-03-09T17:12:19Z", "ms": 4076759539103.97 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-03-10", "window": { "start": { "local": "2099-03-10T21:55:20+03:30", "utc": "2099-03-10T18:25:20Z", "ms": 4076850320018.1367 }, "end": { "local": "2099-03-10T21:55:20+03:30", "utc": "2099-03-10T18:25:20Z", "ms": 4076850320018.1367 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:15 on Mon 9 Mar to 13:44 on Tue 10 Mar.", "fact": "2099-03-09T12:45:27Z → 2099-03-10T10:13:50Z" }, { "step": "kaala", "text": "Moonrise is at 20:42 on the 9th and 21:55 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 9th and is not on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16012 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Monday 9 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-09", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Monday 9 March. Caturthī runs from 16:15 on Mon 9 Mar to 13:44 on Tue 10 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-03-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1560, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-03-13T10:24:57+03:30", "utc": "2099-03-13T06:54:57Z", "ms": 4077068096804.855 }, "end": { "local": "2099-03-14T10:51:18+03:30", "utc": "2099-03-14T07:21:18Z", "ms": 4077156078207.5957 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-13T10:24:57+03:30", "utc": "2099-03-13T06:54:57Z", "ms": 4077068096804.855 }, "end": { "local": "2099-03-14T10:51:18+03:30", "utc": "2099-03-14T07:21:18Z", "ms": 4077156078207.5957 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-03-13", "window": { "start": { "local": "2099-03-13T11:17:34+03:30", "utc": "2099-03-13T07:47:34Z", "ms": 4077071254494.7607 }, "end": { "local": "2099-03-13T12:05:34+03:30", "utc": "2099-03-13T08:35:34Z", "ms": 4077074134494.7607 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-14", "window": { "start": { "local": "2099-03-14T11:17:18+03:30", "utc": "2099-03-14T07:47:18Z", "ms": 4077157638207.129 }, "end": { "local": "2099-03-14T12:05:18+03:30", "utc": "2099-03-14T08:35:18Z", "ms": 4077160518207.129 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:25 on Fri 13 Mar to 10:51 on Sat 14 Mar.", "fact": "2099-03-13T06:54:57Z → 2099-03-14T07:21:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 13th, 11:17–12:05 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1560 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Mashhad, 2099: Friday 13 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitalashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Sitalastami, (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-03-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-13", "confidence": "determinate" } ], "quote": "In Mashhad, Śītalāṣṭamī 2099 falls on Friday 13 March. Aṣṭamī runs from 10:25 on Fri 13 Mar to 10:51 on Sat 14 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-03-17", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29000, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-03-16T13:44:54+03:30", "utc": "2099-03-16T10:14:54Z", "ms": 4077339293571.8438 }, "end": { "local": "2099-03-17T15:57:01+03:30", "utc": "2099-03-17T12:27:01Z", "ms": 4077433620845.549 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-16T13:44:54+03:30", "utc": "2099-03-16T10:14:54Z", "ms": 4077339293571.8438 }, "end": { "local": "2099-03-17T15:57:01+03:30", "utc": "2099-03-17T12:27:01Z", "ms": 4077433620845.549 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-03-16", "window": { "start": { "local": "2099-03-16T05:41:33+03:30", "utc": "2099-03-16T02:11:33Z", "ms": 4077310293184.793 }, "end": { "local": "2099-03-16T05:41:33+03:30", "utc": "2099-03-16T02:11:33Z", "ms": 4077310293184.793 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-03-17", "window": { "start": { "local": "2099-03-17T05:40:07+03:30", "utc": "2099-03-17T02:10:07Z", "ms": 4077396606591.531 }, "end": { "local": "2099-03-17T05:40:07+03:30", "utc": "2099-03-17T02:10:07Z", "ms": 4077396606591.531 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:45 on Mon 16 Mar to 15:57 on Tue 17 Mar.", "fact": "2099-03-16T10:14:54Z → 2099-03-17T12:27:01Z" }, { "step": "kaala", "text": "Sunrise is at 05:42 on the 16th and 05:40 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is 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 29000 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Mashhad, 2099: Tuesday 17 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": "2099-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-17", "confidence": "determinate" } ], "quote": "In Mashhad, Pāpamocanī Ekādaśī 2099 falls on Tuesday 17 March. Ekādaśī runs from 13:45 on Mon 16 Mar to 15:57 on Tue 17 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-03-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-03-19", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-19", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2728, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-03-18T18:27:10+03:30", "utc": "2099-03-18T14:57:10Z", "ms": 4077529029790.236 }, "end": { "local": "2099-03-19T21:06:10+03:30", "utc": "2099-03-19T17:36:10Z", "ms": 4077624969620.1675 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-18T18:27:10+03:30", "utc": "2099-03-18T14:57:10Z", "ms": 4077529029790.236 }, "end": { "local": "2099-03-19T21:06:10+03:30", "utc": "2099-03-19T17:36:10Z", "ms": 4077624969620.1675 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-03-18", "window": { "start": { "local": "2099-03-18T17:41:42+03:30", "utc": "2099-03-18T14:11:42Z", "ms": 4077526302082.2163 }, "end": { "local": "2099-03-18T19:17:06+03:30", "utc": "2099-03-18T15:47:06Z", "ms": 4077532026187.0615 } }, "covered_min": 50, "window_min": 95, "qualifies": true }, { "local_date": "2099-03-19", "window": { "start": { "local": "2099-03-19T17:42:35+03:30", "utc": "2099-03-19T14:12:35Z", "ms": 4077612754524.208 }, "end": { "local": "2099-03-19T19:17:40+03:30", "utc": "2099-03-19T15:47:40Z", "ms": 4077618460027.0938 } }, "covered_min": 95, "window_min": 95, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:27 on Wed 18 Mar to 21:06 on Thu 19 Mar.", "fact": "2099-03-18T14:57:10Z → 2099-03-19T17:36:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:42–19:17 on the 18th, 17:43–19:18 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 50 of 95 minutes on the 18th and 95 of 95 on the 19th.", "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 2728 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Thursday 19 March.", "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": "2099-03-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-19", "confidence": "boundary" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Thursday 19 March. Trayodaśī runs from 18:27 on Wed 18 Mar to 21:06 on Thu 19 Mar and covers all of pradoṣa that evening. It also reaches the previous evening for 50 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/2099/pradosha-vrata?on=2099-03-19", "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/2099/shivaratri?on=2099-03-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-19", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1031, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-03-19T21:06:10+03:30", "utc": "2099-03-19T17:36:10Z", "ms": 4077624969620.1675 }, "end": { "local": "2099-03-20T23:45:42+03:30", "utc": "2099-03-20T20:15:42Z", "ms": 4077720941508.25 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-19T21:06:10+03:30", "utc": "2099-03-19T17:36:10Z", "ms": 4077624969620.1675 }, "end": { "local": "2099-03-20T23:45:42+03:30", "utc": "2099-03-20T20:15:42Z", "ms": 4077720941508.25 } }, "kaala": "nishita", "days": [ { "local_date": "2099-03-19", "window": { "start": { "local": "2099-03-19T23:15:10+03:30", "utc": "2099-03-19T19:45:10Z", "ms": 4077632710160.029 }, "end": { "local": "2099-03-20T00:03:10+03:30", "utc": "2099-03-19T20:33:10Z", "ms": 4077635590160.029 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-20", "window": { "start": { "local": "2099-03-20T23:14:53+03:30", "utc": "2099-03-20T19:44:53Z", "ms": 4077719092721.329 }, "end": { "local": "2099-03-21T00:02:53+03:30", "utc": "2099-03-20T20:32:53Z", "ms": 4077721972721.329 } }, "covered_min": 31, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:06 on Thu 19 Mar to 23:46 on Fri 20 Mar.", "fact": "2099-03-19T17:36:10Z → 2099-03-20T20:15:42Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:15–00:03 on the 19th, 23:15–00:03 on the 20th.", "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 19th and 31 of 48 on the 20th.", "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 1031 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Thursday 19 March.", "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": "2099-03-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-19", "confidence": "boundary" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Thursday 19 March. Caturdaśī runs from 21:06 on Thu 19 Mar to 23:46 on Fri 20 Mar and covers all of niśītha that night. It also reaches the next night for 31 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/2099/shivaratri?on=2099-03-19", "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/2099/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23763, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2099-03-22T02:18:35+03:30", "utc": "2099-03-21T22:48:35Z", "ms": 4077816514560.308 }, "end": { "local": "2099-03-23T04:38:40+03:30", "utc": "2099-03-23T01:08:40Z", "ms": 4077911320021.4536 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-22T02:18:35+03:30", "utc": "2099-03-21T22:48:35Z", "ms": 4077816514560.308 }, "end": { "local": "2099-03-23T04:38:40+03:30", "utc": "2099-03-23T01:08:40Z", "ms": 4077911320021.4536 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-03-22", "window": { "start": { "local": "2099-03-22T11:15:01+03:30", "utc": "2099-03-22T07:45:01Z", "ms": 4077848701193.9346 }, "end": { "local": "2099-03-22T12:03:01+03:30", "utc": "2099-03-22T08:33:01Z", "ms": 4077851581193.9346 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-23", "window": { "start": { "local": "2099-03-23T11:14:44+03:30", "utc": "2099-03-23T07:44:44Z", "ms": 4077935083500.719 }, "end": { "local": "2099-03-23T12:02:44+03:30", "utc": "2099-03-23T08:32:44Z", "ms": 4077937963500.719 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:19 on Sun 22 Mar to 04:39 on Mon 23 Mar.", "fact": "2099-03-21T22:48:35Z → 2099-03-23T01:08:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 22nd, 11:15–12:03 on the 23rd.", "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 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23763 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Mashhad, 2099: Sunday 22 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-22", "confidence": "determinate" } ], "quote": "In Mashhad, Navarātrārambha (Caitra) (Chaitra Navratri) 2099 falls on Sunday 22 March. Pratipadā runs from 02:19 on Sun 22 Mar to 04:39 on Mon 23 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10486, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2099-03-24T06:40:34+03:30", "utc": "2099-03-24T03:10:34Z", "ms": 4078005034127.3413 }, "end": { "local": "2099-03-25T08:19:21+03:30", "utc": "2099-03-25T04:49:21Z", "ms": 4078097361462.643 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-24T06:40:34+03:30", "utc": "2099-03-24T03:10:34Z", "ms": 4078005034127.3413 }, "end": { "local": "2099-03-25T08:19:21+03:30", "utc": "2099-03-25T04:49:21Z", "ms": 4078097361462.643 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-03-24", "window": { "start": { "local": "2099-03-24T11:14:26+03:30", "utc": "2099-03-24T07:44:26Z", "ms": 4078021465740.327 }, "end": { "local": "2099-03-24T12:02:26+03:30", "utc": "2099-03-24T08:32:26Z", "ms": 4078024345740.327 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-25", "window": { "start": { "local": "2099-03-25T11:14:08+03:30", "utc": "2099-03-25T07:44:08Z", "ms": 4078107847930.0605 }, "end": { "local": "2099-03-25T12:02:08+03:30", "utc": "2099-03-25T08:32:08Z", "ms": 4078110727930.0605 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:41 on Tue 24 Mar to 08:19 on Wed 25 Mar.", "fact": "2099-03-24T03:10:34Z → 2099-03-25T04:49:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 24th, 11:14–12:02 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10486 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Mashhad, 2099: Tuesday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-24", "confidence": "determinate" } ], "quote": "In Mashhad, Gaurī Tṛtīyā (Gangaur) 2099 falls on Tuesday 24 March. Tṛtīyā runs from 06:41 on Tue 24 Mar to 08:19 on Wed 25 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10486, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2099-03-24T06:40:34+03:30", "utc": "2099-03-24T03:10:34Z", "ms": 4078005034127.3413 }, "end": { "local": "2099-03-25T08:19:21+03:30", "utc": "2099-03-25T04:49:21Z", "ms": 4078097361462.643 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-24T06:40:34+03:30", "utc": "2099-03-24T03:10:34Z", "ms": 4078005034127.3413 }, "end": { "local": "2099-03-25T08:19:21+03:30", "utc": "2099-03-25T04:49:21Z", "ms": 4078097361462.643 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-03-24", "window": { "start": { "local": "2099-03-24T11:14:26+03:30", "utc": "2099-03-24T07:44:26Z", "ms": 4078021465740.327 }, "end": { "local": "2099-03-24T12:02:26+03:30", "utc": "2099-03-24T08:32:26Z", "ms": 4078024345740.327 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-25", "window": { "start": { "local": "2099-03-25T11:14:08+03:30", "utc": "2099-03-25T07:44:08Z", "ms": 4078107847930.0605 }, "end": { "local": "2099-03-25T12:02:08+03:30", "utc": "2099-03-25T08:32:08Z", "ms": 4078110727930.0605 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:41 on Tue 24 Mar to 08:19 on Wed 25 Mar.", "fact": "2099-03-24T03:10:34Z → 2099-03-25T04:49:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 24th, 11:14–12:02 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10486 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Mashhad, 2099: Tuesday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-24", "confidence": "determinate" } ], "quote": "In Mashhad, Saubhāgya Śayana Vrata 2099 falls on Tuesday 24 March. Tṛtīyā runs from 06:41 on Tue 24 Mar to 08:19 on Wed 25 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vinayaka-chaturthi?on=2099-03-25", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6202, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-03-25T08:19:21+03:30", "utc": "2099-03-25T04:49:21Z", "ms": 4078097361462.643 }, "end": { "local": "2099-03-26T09:30:28+03:30", "utc": "2099-03-26T06:00:28Z", "ms": 4078188028059.859 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-25T08:19:21+03:30", "utc": "2099-03-25T04:49:21Z", "ms": 4078097361462.643 }, "end": { "local": "2099-03-26T09:30:28+03:30", "utc": "2099-03-26T06:00:28Z", "ms": 4078188028059.859 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-03-25", "window": { "start": { "local": "2099-03-25T11:14:08+03:30", "utc": "2099-03-25T07:44:08Z", "ms": 4078107847930.0605 }, "end": { "local": "2099-03-25T12:02:08+03:30", "utc": "2099-03-25T08:32:08Z", "ms": 4078110727930.0605 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-26", "window": { "start": { "local": "2099-03-26T11:13:50+03:30", "utc": "2099-03-26T07:43:50Z", "ms": 4078194230087.2275 }, "end": { "local": "2099-03-26T12:01:50+03:30", "utc": "2099-03-26T08:31:50Z", "ms": 4078197110087.2275 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:19 on Wed 25 Mar to 09:30 on Thu 26 Mar.", "fact": "2099-03-25T04:49:21Z → 2099-03-26T06:00:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 25th, 11:14–12:02 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6202 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Wednesday 25 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": "2099-03-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-25", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Wednesday 25 March. Caturthī runs from 08:19 on Wed 25 Mar to 09:30 on Thu 26 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-03-25", "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/2099/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3824, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2099-03-26T09:30:28+03:30", "utc": "2099-03-26T06:00:28Z", "ms": 4078188028059.859 }, "end": { "local": "2099-03-27T10:09:48+03:30", "utc": "2099-03-27T06:39:48Z", "ms": 4078276788431.3755 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-26T09:30:28+03:30", "utc": "2099-03-26T06:00:28Z", "ms": 4078188028059.859 }, "end": { "local": "2099-03-27T10:09:48+03:30", "utc": "2099-03-27T06:39:48Z", "ms": 4078276788431.3755 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-03-26", "window": { "start": { "local": "2099-03-26T11:13:50+03:30", "utc": "2099-03-26T07:43:50Z", "ms": 4078194230087.2275 }, "end": { "local": "2099-03-26T12:01:50+03:30", "utc": "2099-03-26T08:31:50Z", "ms": 4078197110087.2275 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-27", "window": { "start": { "local": "2099-03-27T11:13:32+03:30", "utc": "2099-03-27T07:43:32Z", "ms": 4078280612229.2236 }, "end": { "local": "2099-03-27T12:01:32+03:30", "utc": "2099-03-27T08:31:32Z", "ms": 4078283492229.2236 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 09:30 on Thu 26 Mar to 10:10 on Fri 27 Mar.", "fact": "2099-03-26T06:00:28Z → 2099-03-27T06:39:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 26th, 11:14–12:02 on the 27th.", "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 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3824 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Mashhad, 2099: Thursday 26 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-26", "confidence": "determinate" } ], "quote": "In Mashhad, Lakṣmī Pañcamī 2099 falls on Thursday 26 March. Pañcamī runs from 09:30 on Thu 26 Mar to 10:10 on Fri 27 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5503, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-03-29T09:41:13+03:30", "utc": "2099-03-29T06:11:13Z", "ms": 4078447873107.719 }, "end": { "local": "2099-03-30T08:30:45+03:30", "utc": "2099-03-30T05:00:45Z", "ms": 4078530044739.5083 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-29T09:41:13+03:30", "utc": "2099-03-29T06:11:13Z", "ms": 4078447873107.719 }, "end": { "local": "2099-03-30T08:30:45+03:30", "utc": "2099-03-30T05:00:45Z", "ms": 4078530044739.5083 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-03-29", "window": { "start": { "local": "2099-03-29T11:12:57+03:30", "utc": "2099-03-29T07:42:57Z", "ms": 4078453376538.299 }, "end": { "local": "2099-03-29T12:00:57+03:30", "utc": "2099-03-29T08:30:57Z", "ms": 4078456256538.299 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-30", "window": { "start": { "local": "2099-03-30T11:12:39+03:30", "utc": "2099-03-30T07:42:39Z", "ms": 4078539758741.5674 }, "end": { "local": "2099-03-30T12:00:39+03:30", "utc": "2099-03-30T08:30:39Z", "ms": 4078542638741.5674 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 09:41 on Sun 29 Mar to 08:31 on Mon 30 Mar.", "fact": "2099-03-29T06:11:13Z → 2099-03-30T05:00:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 29th, 11:13–12:01 on the 30th.", "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 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5503 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Mashhad, 2099: Sunday 29 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhavani-utpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-29", "confidence": "determinate" } ], "quote": "In Mashhad, Bhavānī Utpatti 2099 falls on Sunday 29 March. Aṣṭamī runs from 09:41 on Sun 29 Mar to 08:31 on Mon 30 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9714, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2099-03-30T08:30:45+03:30", "utc": "2099-03-30T05:00:45Z", "ms": 4078530044739.5083 }, "end": { "local": "2099-03-31T06:44:02+03:30", "utc": "2099-03-31T03:14:02Z", "ms": 4078610041786.1797 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-03-30T08:30:45+03:30", "utc": "2099-03-30T05:00:45Z", "ms": 4078530044739.5083 }, "end": { "local": "2099-03-31T06:44:02+03:30", "utc": "2099-03-31T03:14:02Z", "ms": 4078610041786.1797 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-03-30", "window": { "start": { "local": "2099-03-30T11:12:39+03:30", "utc": "2099-03-30T07:42:39Z", "ms": 4078539758741.5674 }, "end": { "local": "2099-03-30T12:00:39+03:30", "utc": "2099-03-30T08:30:39Z", "ms": 4078542638741.5674 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-03-31", "window": { "start": { "local": "2099-03-31T11:12:21+03:30", "utc": "2099-03-31T07:42:21Z", "ms": 4078626141002.376 }, "end": { "local": "2099-03-31T12:00:21+03:30", "utc": "2099-03-31T08:30:21Z", "ms": 4078629021002.376 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 08:31 on Mon 30 Mar to 06:44 on Tue 31 Mar.", "fact": "2099-03-30T05:00:45Z → 2099-03-31T03:14:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 30th, 11:12–12:00 on the 31st.", "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 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9714 s" }, { "step": "ruling", "text": "Rāma Navamī, Mashhad, 2099: Monday 30 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rama-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti." } ], "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-03-30", "confidence": "determinate" } ], "quote": "In Mashhad, Rāma Navamī 2099 falls on Monday 30 March. Navamī runs from 08:31 on Mon 30 Mar to 06:44 on Tue 31 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-04-01", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3242, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-04-01T04:24:18+03:30", "utc": "2099-04-01T00:54:18Z", "ms": 4078688058375.832 }, "end": { "local": "2099-04-02T01:36:32+03:30", "utc": "2099-04-01T22:06:32Z", "ms": 4078764392142.405 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-04-01T04:24:18+03:30", "utc": "2099-04-01T00:54:18Z", "ms": 4078688058375.832 }, "end": { "local": "2099-04-02T01:36:32+03:30", "utc": "2099-04-01T22:06:32Z", "ms": 4078764392142.405 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-04-01", "window": { "start": { "local": "2099-04-01T05:18:21+03:30", "utc": "2099-04-01T01:48:21Z", "ms": 4078691300833.8257 }, "end": { "local": "2099-04-01T05:18:21+03:30", "utc": "2099-04-01T01:48:21Z", "ms": 4078691300833.8257 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-04-02", "window": { "start": { "local": "2099-04-02T05:16:55+03:30", "utc": "2099-04-02T01:46:55Z", "ms": 4078777614604.002 }, "end": { "local": "2099-04-02T05:16:55+03:30", "utc": "2099-04-02T01:46:55Z", "ms": 4078777614604.002 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:24 on Wed 1 Apr to 01:37 on Thu 2 Apr.", "fact": "2099-04-01T00:54:18Z → 2099-04-01T22:06:32Z" }, { "step": "kaala", "text": "Sunrise is at 05:18 on the 1st and 05:17 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3242 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Mashhad, 2099: Wednesday 1 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": "2099-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-01", "confidence": "determinate" } ], "quote": "In Mashhad, Kāmadā Ekādaśī 2099 falls on Wednesday 1 April. Ekādaśī runs from 04:24 on Wed 1 Apr to 01:37 on Thu 2 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-04-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25455, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-04-02T22:27:09+03:30", "utc": "2099-04-02T18:57:09Z", "ms": 4078839428740.0537 }, "end": { "local": "2099-04-03T19:03:44+03:30", "utc": "2099-04-03T15:33:44Z", "ms": 4078913623685.835 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-04-02T22:27:09+03:30", "utc": "2099-04-02T18:57:09Z", "ms": 4078839428740.0537 }, "end": { "local": "2099-04-03T19:03:44+03:30", "utc": "2099-04-03T15:33:44Z", "ms": 4078913623685.835 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-04-02", "window": { "start": { "local": "2099-04-02T11:11:46+03:30", "utc": "2099-04-02T07:41:46Z", "ms": 4078798905776.7266 }, "end": { "local": "2099-04-02T11:59:46+03:30", "utc": "2099-04-02T08:29:46Z", "ms": 4078801785776.7266 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-04-03", "window": { "start": { "local": "2099-04-03T11:11:28+03:30", "utc": "2099-04-03T07:41:28Z", "ms": 4078885288332.837 }, "end": { "local": "2099-04-03T11:59:28+03:30", "utc": "2099-04-03T08:29:28Z", "ms": 4078888168332.837 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:27 on Thu 2 Apr to 19:04 on Fri 3 Apr.", "fact": "2099-04-02T18:57:09Z → 2099-04-03T15:33:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:12–12:00 on the 2nd, 11:11–11:59 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 25455 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Mashhad, 2099: Friday 3 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": "2099-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-03", "confidence": "determinate" } ], "quote": "In Mashhad, Anaṅga Trayodaśī 2099 falls on Friday 3 April. Trayodaśī runs from 22:27 on Thu 2 Apr to 19:04 on Fri 3 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pradosha-vrata?on=2099-04-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1333, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-04-02T22:27:09+03:30", "utc": "2099-04-02T18:57:09Z", "ms": 4078839428740.0537 }, "end": { "local": "2099-04-03T19:03:44+03:30", "utc": "2099-04-03T15:33:44Z", "ms": 4078913623685.835 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-04-02T22:27:09+03:30", "utc": "2099-04-02T18:57:09Z", "ms": 4078839428740.0537 }, "end": { "local": "2099-04-03T19:03:44+03:30", "utc": "2099-04-03T15:33:44Z", "ms": 4078913623685.835 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-04-02", "window": { "start": { "local": "2099-04-02T17:54:37+03:30", "utc": "2099-04-02T14:24:37Z", "ms": 4078823076949.4517 }, "end": { "local": "2099-04-02T19:25:24+03:30", "utc": "2099-04-02T15:55:24Z", "ms": 4078828523841.906 } }, "covered_min": 0, "window_min": 91, "qualifies": false }, { "local_date": "2099-04-03", "window": { "start": { "local": "2099-04-03T17:55:28+03:30", "utc": "2099-04-03T14:25:28Z", "ms": 4078909528022.8154 }, "end": { "local": "2099-04-03T19:25:57+03:30", "utc": "2099-04-03T15:55:57Z", "ms": 4078914956683.9697 } }, "covered_min": 68, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:27 on Thu 2 Apr to 19:04 on Fri 3 Apr.", "fact": "2099-04-02T18:57:09Z → 2099-04-03T15:33:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:55–19:25 on the 2nd, 17:55–19:26 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 91 minutes on the 2nd and 68 of 90 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1333 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Friday 3 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": "2099-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-03", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Friday 3 April. Trayodaśī runs from 22:27 on Thu 2 Apr to 19:04 on Fri 3 Apr and covers 68 of 90 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-04-03", "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/2099/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12933, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-04-03T19:03:44+03:30", "utc": "2099-04-03T15:33:44Z", "ms": 4078913623685.835 }, "end": { "local": "2099-04-04T15:34:44+03:30", "utc": "2099-04-04T12:04:44Z", "ms": 4078987484370.084 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-04-03T19:03:44+03:30", "utc": "2099-04-03T15:33:44Z", "ms": 4078913623685.835 }, "end": { "local": "2099-04-04T15:34:44+03:30", "utc": "2099-04-04T12:04:44Z", "ms": 4078987484370.084 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-04-03", "window": { "start": { "local": "2099-04-03T11:11:28+03:30", "utc": "2099-04-03T07:41:28Z", "ms": 4078885288332.837 }, "end": { "local": "2099-04-03T11:59:28+03:30", "utc": "2099-04-03T08:29:28Z", "ms": 4078888168332.837 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-04-04", "window": { "start": { "local": "2099-04-04T11:11:11+03:30", "utc": "2099-04-04T07:41:11Z", "ms": 4078971671031.476 }, "end": { "local": "2099-04-04T11:59:11+03:30", "utc": "2099-04-04T08:29:11Z", "ms": 4078974551031.476 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:04 on Fri 3 Apr to 15:35 on Sat 4 Apr.", "fact": "2099-04-03T15:33:44Z → 2099-04-04T12:04:44Z" }, { "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": "Caturdaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12933 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Mashhad, 2099: Saturday 4 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": "2099-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-04", "confidence": "determinate" } ], "quote": "In Mashhad, Viṣṇudamanaka Caturdaśī 2099 falls on Saturday 4 April. Caturdaśī runs from 19:04 on Fri 3 Apr to 15:35 on Sat 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 619, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-04-04T15:34:44+03:30", "utc": "2099-04-04T12:04:44Z", "ms": 4078987484370.084 }, "end": { "local": "2099-04-05T12:09:13+03:30", "utc": "2099-04-05T08:39:13Z", "ms": 4079061553091.9116 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2099-04-04T15:34:44+03:30", "utc": "2099-04-04T12:04:44Z", "ms": 4078987484370.084 }, "end": { "local": "2099-04-05T12:09:13+03:30", "utc": "2099-04-05T08:39:13Z", "ms": 4079061553091.9116 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-04-04", "window": { "start": { "local": "2099-04-04T11:11:11+03:30", "utc": "2099-04-04T07:41:11Z", "ms": 4078971671031.476 }, "end": { "local": "2099-04-04T11:59:11+03:30", "utc": "2099-04-04T08:29:11Z", "ms": 4078974551031.476 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-04-05", "window": { "start": { "local": "2099-04-05T11:10:54+03:30", "utc": "2099-04-05T07:40:54Z", "ms": 4079058053895.7383 }, "end": { "local": "2099-04-05T11:58:54+03:30", "utc": "2099-04-05T08:28:54Z", "ms": 4079060933895.7383 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:35 on Sat 4 Apr to 12:09 on Sun 5 Apr.", "fact": "2099-04-04T12:04:44Z → 2099-04-05T08:39:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 4th, 11:11–11:59 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 619 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Mashhad, 2099: Sunday 5 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": "2099-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-05", "confidence": "determinate" } ], "quote": "In Mashhad, Caitrī Pūrṇimā 2099 falls on Sunday 5 April. Pūrṇimā runs from 15:35 on Sat 4 Apr to 12:09 on Sun 5 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-04-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14937, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-04-08T03:46:16+03:30", "utc": "2099-04-08T00:16:16Z", "ms": 4079290576048.7456 }, "end": { "local": "2099-04-09T02:05:27+03:30", "utc": "2099-04-08T22:35:27Z", "ms": 4079370926681.533 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-08T03:46:16+03:30", "utc": "2099-04-08T00:16:16Z", "ms": 4079290576048.7456 }, "end": { "local": "2099-04-09T02:05:27+03:30", "utc": "2099-04-08T22:35:27Z", "ms": 4079370926681.533 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-04-07", "window": { "start": { "local": "2099-04-07T20:43:42+03:30", "utc": "2099-04-07T17:13:42Z", "ms": 4079265222020.3047 }, "end": { "local": "2099-04-07T20:43:42+03:30", "utc": "2099-04-07T17:13:42Z", "ms": 4079265222020.3047 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-04-08", "window": { "start": { "local": "2099-04-08T21:56:30+03:30", "utc": "2099-04-08T18:26:30Z", "ms": 4079355990068.074 }, "end": { "local": "2099-04-08T21:56:30+03:30", "utc": "2099-04-08T18:26:30Z", "ms": 4079355990068.074 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:46 on Wed 8 Apr to 02:05 on Thu 9 Apr.", "fact": "2099-04-08T00:16:16Z → 2099-04-08T22:35:27Z" }, { "step": "kaala", "text": "Moonrise is at 20:44 on the 7th and 21:57 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 7th and is on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14937 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Wednesday 8 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": "2099-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-08", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Wednesday 8 April. Caturthī runs from 03:46 on Wed 8 Apr to 02:05 on Thu 9 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-04-08", "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/2099/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15922, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2099-04-15T00:33:28+03:30", "utc": "2099-04-14T21:03:28Z", "ms": 4079883807699.3457 }, "end": { "local": "2099-05-15T21:17:43+03:30", "utc": "2099-05-15T17:47:43Z", "ms": 4082550463017.7036 } }, "span": { "of": "transit", "start": { "local": "2099-04-15T00:33:28+03:30", "utc": "2099-04-14T21:03:28Z", "ms": 4079883807699.3457 }, "end": { "local": "2099-04-15T00:33:28+03:30", "utc": "2099-04-14T21:03:28Z", "ms": 4079883807699.3457 } }, "kaala": "day", "days": [ { "local_date": "2099-04-14", "window": { "start": { "local": "2099-04-14T05:00:10+03:30", "utc": "2099-04-14T01:30:10Z", "ms": 4079813409727.497 }, "end": { "local": "2099-04-15T04:58:49+03:30", "utc": "2099-04-15T01:28:49Z", "ms": 4079899729414.3 } }, "covered_min": 1, "window_min": 1439, "qualifies": true }, { "local_date": "2099-04-15", "window": { "start": { "local": "2099-04-15T04:58:49+03:30", "utc": "2099-04-15T01:28:49Z", "ms": 4079899729414.3 }, "end": { "local": "2099-04-16T04:57:30+03:30", "utc": "2099-04-16T01:27:30Z", "ms": 4079986049767.593 } }, "covered_min": 0, "window_min": 1439, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 00:33 on Wed 15 Apr.", "fact": "2099-04-14T21:03:28Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:00 on the 14th, and from 04:59 on the 15th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 14th, not the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 15922 s" }, { "step": "ruling", "text": "Vaiśākhī, Mashhad, 2099: Tuesday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2099-04-15", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "2099-04-15", "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 2099 falls on Tuesday 14 April. The Sun enters Meṣa at 00:33 on Wed 15 Apr, and the rule counts the day from sunrise. Counted from midnight, or by the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 15 April.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-04-16", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9287, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-04-15T07:33:36+03:30", "utc": "2099-04-15T04:03:36Z", "ms": 4079909016132.46 }, "end": { "local": "2099-04-16T10:11:20+03:30", "utc": "2099-04-16T06:41:20Z", "ms": 4080004879762.5894 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-15T07:33:36+03:30", "utc": "2099-04-15T04:03:36Z", "ms": 4079909016132.46 }, "end": { "local": "2099-04-16T10:11:20+03:30", "utc": "2099-04-16T06:41:20Z", "ms": 4080004879762.5894 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-04-15", "window": { "start": { "local": "2099-04-15T04:58:49+03:30", "utc": "2099-04-15T01:28:49Z", "ms": 4079899729414.3 }, "end": { "local": "2099-04-15T04:58:49+03:30", "utc": "2099-04-15T01:28:49Z", "ms": 4079899729414.3 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-04-16", "window": { "start": { "local": "2099-04-16T04:57:30+03:30", "utc": "2099-04-16T01:27:30Z", "ms": 4079986049767.593 }, "end": { "local": "2099-04-16T04:57:30+03:30", "utc": "2099-04-16T01:27:30Z", "ms": 4079986049767.593 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:34 on Wed 15 Apr to 10:11 on Thu 16 Apr.", "fact": "2099-04-15T04:03:36Z → 2099-04-16T06:41:20Z" }, { "step": "kaala", "text": "Sunrise is at 04:59 on the 15th and 04:57 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 9287 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Mashhad, 2099: Thursday 16 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": "2099-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-16", "confidence": "determinate" } ], "quote": "In Mashhad, Varūthinī Ekādaśī 2099 falls on Thursday 16 April. Ekādaśī runs from 07:34 on Wed 15 Apr to 10:11 on Thu 16 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-04-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-04-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10440, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-04-17T12:48:31+03:30", "utc": "2099-04-17T09:18:31Z", "ms": 4080100710858.997 }, "end": { "local": "2099-04-18T15:14:18+03:30", "utc": "2099-04-18T11:44:18Z", "ms": 4080195858317.7725 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-17T12:48:31+03:30", "utc": "2099-04-17T09:18:31Z", "ms": 4080100710858.997 }, "end": { "local": "2099-04-18T15:14:18+03:30", "utc": "2099-04-18T11:44:18Z", "ms": 4080195858317.7725 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-04-17", "window": { "start": { "local": "2099-04-17T18:07:27+03:30", "utc": "2099-04-17T14:37:27Z", "ms": 4080119846527.551 }, "end": { "local": "2099-04-17T19:33:46+03:30", "utc": "2099-04-17T16:03:46Z", "ms": 4080125026002.222 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "2099-04-18", "window": { "start": { "local": "2099-04-18T18:08:18+03:30", "utc": "2099-04-18T14:38:18Z", "ms": 4080206298314.538 }, "end": { "local": "2099-04-18T19:34:21+03:30", "utc": "2099-04-18T16:04:21Z", "ms": 4080211460553.98 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:49 on Fri 17 Apr to 15:14 on Sat 18 Apr.", "fact": "2099-04-17T09:18:31Z → 2099-04-18T11:44:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:34 on the 17th, 18:08–19:34 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 86 of 86 minutes on the 17th and 0 of 86 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 10440 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Friday 17 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": "2099-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-17", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Friday 17 April. Trayodaśī runs from 12:49 on Fri 17 Apr to 15:14 on Sat 18 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-04-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/shivaratri?on=2099-04-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20773, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-04-18T15:14:18+03:30", "utc": "2099-04-18T11:44:18Z", "ms": 4080195858317.7725 }, "end": { "local": "2099-04-19T17:20:31+03:30", "utc": "2099-04-19T13:50:31Z", "ms": 4080289831370.3706 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-18T15:14:18+03:30", "utc": "2099-04-18T11:44:18Z", "ms": 4080195858317.7725 }, "end": { "local": "2099-04-19T17:20:31+03:30", "utc": "2099-04-19T13:50:31Z", "ms": 4080289831370.3706 } }, "kaala": "nishita", "days": [ { "local_date": "2099-04-18", "window": { "start": { "local": "2099-04-18T23:06:57+03:30", "utc": "2099-04-18T19:36:57Z", "ms": 4080224216712.446 }, "end": { "local": "2099-04-18T23:54:57+03:30", "utc": "2099-04-18T20:24:57Z", "ms": 4080227096712.446 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-04-19", "window": { "start": { "local": "2099-04-19T23:06:44+03:30", "utc": "2099-04-19T19:36:44Z", "ms": 4080310604285.7144 }, "end": { "local": "2099-04-19T23:54:44+03:30", "utc": "2099-04-19T20:24:44Z", "ms": 4080313484285.7144 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:14 on Sat 18 Apr to 17:21 on Sun 19 Apr.", "fact": "2099-04-18T11:44:18Z → 2099-04-19T13:50:31Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:07–23:55 on the 18th, 23:07–23:55 on the 19th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20773 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Saturday 18 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": "2099-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-18", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Saturday 18 April. Caturdaśī runs from 15:14 on Sat 18 Apr to 17:21 on Sun 19 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-04-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26999, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2099-04-22T21:00:36+03:30", "utc": "2099-04-22T17:30:36Z", "ms": 4080562236418.6978 }, "end": { "local": "2099-04-23T21:17:21+03:30", "utc": "2099-04-23T17:47:21Z", "ms": 4080649640832.337 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-22T21:00:36+03:30", "utc": "2099-04-22T17:30:36Z", "ms": 4080562236418.6978 }, "end": { "local": "2099-04-23T21:17:21+03:30", "utc": "2099-04-23T17:47:21Z", "ms": 4080649640832.337 } }, "kaala": "purvahna", "days": [ { "local_date": "2099-04-23", "window": { "start": { "local": "2099-04-23T04:48:33+03:30", "utc": "2099-04-23T01:18:33Z", "ms": 4080590313257.3115 }, "end": { "local": "2099-04-23T09:16:35+03:30", "utc": "2099-04-23T05:46:35Z", "ms": 4080606394832.245 } }, "covered_min": 268, "window_min": 268, "qualifies": true }, { "local_date": "2099-04-24", "window": { "start": { "local": "2099-04-24T04:47:20+03:30", "utc": "2099-04-24T01:17:20Z", "ms": 4080676639941.707 }, "end": { "local": "2099-04-24T09:16:03+03:30", "utc": "2099-04-24T05:46:03Z", "ms": 4080692763295.4736 } }, "covered_min": 0, "window_min": 269, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:01 on Wed 22 Apr to 21:17 on Thu 23 Apr.", "fact": "2099-04-22T17:30:36Z → 2099-04-23T17:47:21Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 04:49–09:17 on the 23rd, 04:47–09:16 on the 24th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 268 of 268 minutes on the 23rd and 0 of 269 on the 24th.", "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 26999 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Mashhad, 2099: Thursday 23 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-23", "confidence": "determinate" } ], "quote": "In Mashhad, Akṣaya Tṛtīyā 2099 falls on Thursday 23 April. Tṛtīyā runs from 21:01 on Wed 22 Apr to 21:17 on Thu 23 Apr and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5036, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2099-04-22T21:00:36+03:30", "utc": "2099-04-22T17:30:36Z", "ms": 4080562236418.6978 }, "end": { "local": "2099-04-23T21:17:21+03:30", "utc": "2099-04-23T17:47:21Z", "ms": 4080649640832.337 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-22T21:00:36+03:30", "utc": "2099-04-22T17:30:36Z", "ms": 4080562236418.6978 }, "end": { "local": "2099-04-23T21:17:21+03:30", "utc": "2099-04-23T17:47:21Z", "ms": 4080649640832.337 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-04-22", "window": { "start": { "local": "2099-04-22T18:11:46+03:30", "utc": "2099-04-22T14:41:46Z", "ms": 4080552105977.2056 }, "end": { "local": "2099-04-22T19:36:40+03:30", "utc": "2099-04-22T16:06:40Z", "ms": 4080557200281.2197 } }, "covered_min": 0, "window_min": 85, "qualifies": false }, { "local_date": "2099-04-23", "window": { "start": { "local": "2099-04-23T18:12:38+03:30", "utc": "2099-04-23T14:42:38Z", "ms": 4080638557982.1123 }, "end": { "local": "2099-04-23T19:37:16+03:30", "utc": "2099-04-23T16:07:16Z", "ms": 4080643635576.725 } }, "covered_min": 85, "window_min": 85, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:01 on Wed 22 Apr to 21:17 on Thu 23 Apr.", "fact": "2099-04-22T17:30:36Z → 2099-04-23T17:47:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:12–19:37 on the 22nd, 18:13–19:37 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 0 of 85 minutes on the 22nd and 85 of 85 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: paraviddha → only-day · margin 5036 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Mashhad, 2099: Thursday 23 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-23", "confidence": "determinate" } ], "quote": "In Mashhad, Paraśurāma Jayantī 2099 falls on Thursday 23 April. Tṛtīyā runs from 21:01 on Wed 22 Apr to 21:17 on Thu 23 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vinayaka-chaturthi?on=2099-04-24", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33130, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-04-23T21:17:21+03:30", "utc": "2099-04-23T17:47:21Z", "ms": 4080649640832.337 }, "end": { "local": "2099-04-24T21:06:35+03:30", "utc": "2099-04-24T17:36:35Z", "ms": 4080735395066.799 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-23T21:17:21+03:30", "utc": "2099-04-23T17:47:21Z", "ms": 4080649640832.337 }, "end": { "local": "2099-04-24T21:06:35+03:30", "utc": "2099-04-24T17:36:35Z", "ms": 4080735395066.799 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-04-23", "window": { "start": { "local": "2099-04-23T11:06:36+03:30", "utc": "2099-04-23T07:36:36Z", "ms": 4080612995619.712 }, "end": { "local": "2099-04-23T11:54:36+03:30", "utc": "2099-04-23T08:24:36Z", "ms": 4080615875619.712 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-04-24", "window": { "start": { "local": "2099-04-24T11:06:25+03:30", "utc": "2099-04-24T07:36:25Z", "ms": 4080699384972.3574 }, "end": { "local": "2099-04-24T11:54:25+03:30", "utc": "2099-04-24T08:24:25Z", "ms": 4080702264972.3574 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:17 on Thu 23 Apr to 21:07 on Fri 24 Apr.", "fact": "2099-04-23T17:47:21Z → 2099-04-24T17:36:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 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": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33130 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Friday 24 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": "2099-04-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-24", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Friday 24 April. Caturthī runs from 21:17 on Thu 23 Apr to 21:07 on Fri 24 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-04-24", "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/2099/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30906, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2099-04-24T21:06:35+03:30", "utc": "2099-04-24T17:36:35Z", "ms": 4080735395066.799 }, "end": { "local": "2099-04-25T20:29:21+03:30", "utc": "2099-04-25T16:59:21Z", "ms": 4080819561225.7256 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-24T21:06:35+03:30", "utc": "2099-04-24T17:36:35Z", "ms": 4080735395066.799 }, "end": { "local": "2099-04-25T20:29:21+03:30", "utc": "2099-04-25T16:59:21Z", "ms": 4080819561225.7256 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-04-24", "window": { "start": { "local": "2099-04-24T11:06:25+03:30", "utc": "2099-04-24T07:36:25Z", "ms": 4080699384972.3574 }, "end": { "local": "2099-04-24T11:54:25+03:30", "utc": "2099-04-24T08:24:25Z", "ms": 4080702264972.3574 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-04-25", "window": { "start": { "local": "2099-04-25T11:06:15+03:30", "utc": "2099-04-25T07:36:15Z", "ms": 4080785774783.328 }, "end": { "local": "2099-04-25T11:54:15+03:30", "utc": "2099-04-25T08:24:15Z", "ms": 4080788654783.328 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 21:07 on Fri 24 Apr to 20:29 on Sat 25 Apr.", "fact": "2099-04-24T17:36:35Z → 2099-04-25T16:59:21Z" }, { "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": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30906 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Mashhad, 2099: Saturday 25 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-25", "confidence": "determinate" } ], "quote": "In Mashhad, Śaṅkara Jayantī 2099 falls on Saturday 25 April. Pañcamī runs from 21:07 on Fri 24 Apr to 20:29 on Sat 25 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21956, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2099-04-26T19:26:44+03:30", "utc": "2099-04-26T15:56:44Z", "ms": 4080902203791.9463 }, "end": { "local": "2099-04-27T17:59:52+03:30", "utc": "2099-04-27T14:29:52Z", "ms": 4080983392293.513 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-26T19:26:44+03:30", "utc": "2099-04-26T15:56:44Z", "ms": 4080902203791.9463 }, "end": { "local": "2099-04-27T17:59:52+03:30", "utc": "2099-04-27T14:29:52Z", "ms": 4080983392293.513 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-04-26", "window": { "start": { "local": "2099-04-26T11:06:05+03:30", "utc": "2099-04-26T07:36:05Z", "ms": 4080872165059.949 }, "end": { "local": "2099-04-26T11:54:05+03:30", "utc": "2099-04-26T08:24:05Z", "ms": 4080875045059.949 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-04-27", "window": { "start": { "local": "2099-04-27T11:05:56+03:30", "utc": "2099-04-27T07:35:56Z", "ms": 4080958555809.551 }, "end": { "local": "2099-04-27T11:53:56+03:30", "utc": "2099-04-27T08:23:56Z", "ms": 4080961435809.551 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 19:27 on Sun 26 Apr to 18:00 on Mon 27 Apr.", "fact": "2099-04-26T15:56:44Z → 2099-04-27T14:29:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 26th, 11:06–11:54 on the 27th.", "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 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21956 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Mashhad, 2099: Monday 27 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-04-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-04-27", "confidence": "determinate" } ], "quote": "In Mashhad, Gaṅgotpatti (Ganga Saptami) 2099 falls on Monday 27 April. Saptamī runs from 19:27 on Sun 26 Apr to 18:00 on Mon 27 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-05-01", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14959, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-04-30T11:31:15+03:30", "utc": "2099-04-30T08:01:15Z", "ms": 4081219275170.9927 }, "end": { "local": "2099-05-01T08:48:33+03:30", "utc": "2099-05-01T05:18:33Z", "ms": 4081295913248.974 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-04-30T11:31:15+03:30", "utc": "2099-04-30T08:01:15Z", "ms": 4081219275170.9927 }, "end": { "local": "2099-05-01T08:48:33+03:30", "utc": "2099-05-01T05:18:33Z", "ms": 4081295913248.974 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-04-30", "window": { "start": { "local": "2099-04-30T04:40:20+03:30", "utc": "2099-04-30T01:10:20Z", "ms": 4081194620150.782 }, "end": { "local": "2099-04-30T04:40:20+03:30", "utc": "2099-04-30T01:10:20Z", "ms": 4081194620150.782 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-05-01", "window": { "start": { "local": "2099-05-01T04:39:14+03:30", "utc": "2099-05-01T01:09:14Z", "ms": 4081280953794.7363 }, "end": { "local": "2099-05-01T04:39:14+03:30", "utc": "2099-05-01T01:09:14Z", "ms": 4081280953794.7363 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:31 on Thu 30 Apr to 08:49 on Fri 1 May.", "fact": "2099-04-30T08:01:15Z → 2099-05-01T05:18:33Z" }, { "step": "kaala", "text": "Sunrise is at 04:40 on the 30th and 04:39 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 30th 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 14959 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Mashhad, 2099: Friday 1 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": "2099-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-01", "confidence": "determinate" } ], "quote": "In Mashhad, Mohinī Ekādaśī 2099 falls on Friday 1 May. Ekādaśī runs from 11:31 on Thu 30 Apr to 08:49 on Fri 1 May and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-05-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8210, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2099-05-01T08:48:33+03:30", "utc": "2099-05-01T05:18:33Z", "ms": 4081295913248.974 }, "end": { "local": "2099-05-02T05:56:35+03:30", "utc": "2099-05-02T02:26:35Z", "ms": 4081371995153.2197 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-01T08:48:33+03:30", "utc": "2099-05-01T05:18:33Z", "ms": 4081295913248.974 }, "end": { "local": "2099-05-02T05:56:35+03:30", "utc": "2099-05-02T02:26:35Z", "ms": 4081371995153.2197 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-01", "window": { "start": { "local": "2099-05-01T11:05:24+03:30", "utc": "2099-05-01T07:35:24Z", "ms": 4081304123696.292 }, "end": { "local": "2099-05-01T11:53:24+03:30", "utc": "2099-05-01T08:23:24Z", "ms": 4081307003696.292 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-05-02", "window": { "start": { "local": "2099-05-02T11:05:17+03:30", "utc": "2099-05-02T07:35:17Z", "ms": 4081390516934.69 }, "end": { "local": "2099-05-02T11:53:17+03:30", "utc": "2099-05-02T08:23:17Z", "ms": 4081393396934.69 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 08:49 on Fri 1 May to 05:57 on Sat 2 May.", "fact": "2099-05-01T05:18:33Z → 2099-05-02T02:26:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 1st, 11:05–11:53 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8210 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Mashhad, 2099: Friday 1 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": "2099-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-01", "confidence": "determinate" } ], "quote": "In Mashhad, Paraśurāma Dvādaśī 2099 falls on Friday 1 May. Dvādaśī runs from 08:49 on Fri 1 May to 05:57 on Sat 2 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8210, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2099-05-01T08:48:33+03:30", "utc": "2099-05-01T05:18:33Z", "ms": 4081295913248.974 }, "end": { "local": "2099-05-02T05:56:35+03:30", "utc": "2099-05-02T02:26:35Z", "ms": 4081371995153.2197 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-01T08:48:33+03:30", "utc": "2099-05-01T05:18:33Z", "ms": 4081295913248.974 }, "end": { "local": "2099-05-02T05:56:35+03:30", "utc": "2099-05-02T02:26:35Z", "ms": 4081371995153.2197 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-01", "window": { "start": { "local": "2099-05-01T11:05:24+03:30", "utc": "2099-05-01T07:35:24Z", "ms": 4081304123696.292 }, "end": { "local": "2099-05-01T11:53:24+03:30", "utc": "2099-05-01T08:23:24Z", "ms": 4081307003696.292 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-05-02", "window": { "start": { "local": "2099-05-02T11:05:17+03:30", "utc": "2099-05-02T07:35:17Z", "ms": 4081390516934.69 }, "end": { "local": "2099-05-02T11:53:17+03:30", "utc": "2099-05-02T08:23:17Z", "ms": 4081393396934.69 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 08:49 on Fri 1 May to 05:57 on Sat 2 May.", "fact": "2099-05-01T05:18:33Z → 2099-05-02T02:26:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 1st, 11:05–11:53 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8210 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Mashhad, 2099: Friday 1 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": "2099-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-01", "confidence": "determinate" } ], "quote": "In Mashhad, Rukmiṇī Dvādaśī 2099 falls on Friday 1 May. Dvādaśī runs from 08:49 on Fri 1 May to 05:57 on Sat 2 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pradosha-vrata?on=2099-05-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26326, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-05-02T05:56:35+03:30", "utc": "2099-05-02T02:26:35Z", "ms": 4081371995153.2197 }, "end": { "local": "2099-05-03T03:01:25+03:30", "utc": "2099-05-02T23:31:25Z", "ms": 4081447884750.8555 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-02T05:56:35+03:30", "utc": "2099-05-02T02:26:35Z", "ms": 4081371995153.2197 }, "end": { "local": "2099-05-03T03:01:25+03:30", "utc": "2099-05-02T23:31:25Z", "ms": 4081447884750.8555 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-05-01", "window": { "start": { "local": "2099-05-01T18:19:34+03:30", "utc": "2099-05-01T14:49:34Z", "ms": 4081330173597.848 }, "end": { "local": "2099-05-01T19:42:02+03:30", "utc": "2099-05-01T16:12:02Z", "ms": 4081335122257.635 } }, "covered_min": 0, "window_min": 82, "qualifies": false }, { "local_date": "2099-05-02", "window": { "start": { "local": "2099-05-02T18:20:25+03:30", "utc": "2099-05-02T14:50:25Z", "ms": 4081416625323.134 }, "end": { "local": "2099-05-02T19:42:39+03:30", "utc": "2099-05-02T16:12:39Z", "ms": 4081421558537.991 } }, "covered_min": 82, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:57 on Sat 2 May to 03:01 on Sun 3 May.", "fact": "2099-05-02T02:26:35Z → 2099-05-02T23:31:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:20–19:42 on the 1st, 18:20–19:43 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 82 minutes on the 1st and 82 of 82 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26326 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Saturday 2 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": "2099-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-02", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Saturday 2 May. Trayodaśī runs from 05:57 on Sat 2 May to 03:01 on Sun 3 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-05-02", "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/2099/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16012, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-05-03T03:01:25+03:30", "utc": "2099-05-02T23:31:25Z", "ms": 4081447884750.8555 }, "end": { "local": "2099-05-04T00:10:07+03:30", "utc": "2099-05-03T20:40:07Z", "ms": 4081524007273.477 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-03T03:01:25+03:30", "utc": "2099-05-02T23:31:25Z", "ms": 4081447884750.8555 }, "end": { "local": "2099-05-04T00:10:07+03:30", "utc": "2099-05-03T20:40:07Z", "ms": 4081524007273.477 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-05-02", "window": { "start": { "local": "2099-05-02T18:20:25+03:30", "utc": "2099-05-02T14:50:25Z", "ms": 4081416625323.134 }, "end": { "local": "2099-05-02T19:42:39+03:30", "utc": "2099-05-02T16:12:39Z", "ms": 4081421558537.991 } }, "covered_min": 0, "window_min": 82, "qualifies": false }, { "local_date": "2099-05-03", "window": { "start": { "local": "2099-05-03T18:21:17+03:30", "utc": "2099-05-03T14:51:17Z", "ms": 4081503076964.3584 }, "end": { "local": "2099-05-03T19:43:15+03:30", "utc": "2099-05-03T16:13:15Z", "ms": 4081507994900.9824 } }, "covered_min": 82, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:01 on Sun 3 May to 00:10 on Mon 4 May.", "fact": "2099-05-02T23:31:25Z → 2099-05-03T20:40:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:20–19:43 on the 2nd, 18:21–19:43 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 82 minutes on the 2nd and 82 of 82 on the 3rd.", "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 16012 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Mashhad, 2099: Sunday 3 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": "2099-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-03", "confidence": "determinate" } ], "quote": "In Mashhad, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2099 falls on Sunday 3 May. Caturdaśī runs from 03:01 on Sun 3 May to 00:10 on Mon 4 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34652, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-05-04T00:10:07+03:30", "utc": "2099-05-03T20:40:07Z", "ms": 4081524007273.477 }, "end": { "local": "2099-05-04T21:30:37+03:30", "utc": "2099-05-04T18:00:37Z", "ms": 4081600836786.179 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-04T00:10:07+03:30", "utc": "2099-05-03T20:40:07Z", "ms": 4081524007273.477 }, "end": { "local": "2099-05-04T21:30:37+03:30", "utc": "2099-05-04T18:00:37Z", "ms": 4081600836786.179 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-03", "window": { "start": { "local": "2099-05-03T11:05:11+03:30", "utc": "2099-05-03T07:35:11Z", "ms": 4081476910699.462 }, "end": { "local": "2099-05-03T11:53:11+03:30", "utc": "2099-05-03T08:23:11Z", "ms": 4081479790699.462 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-05-04", "window": { "start": { "local": "2099-05-04T11:05:05+03:30", "utc": "2099-05-04T07:35:05Z", "ms": 4081563305000.6646 }, "end": { "local": "2099-05-04T11:53:05+03:30", "utc": "2099-05-04T08:23:05Z", "ms": 4081566185000.6646 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:10 on Mon 4 May to 21:31 on Mon 4 May.", "fact": "2099-05-03T20:40:07Z → 2099-05-04T18:00:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 3rd, 11:05–11:53 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34652 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Mashhad, 2099: Monday 4 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "buddha-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-04", "confidence": "determinate" } ], "quote": "In Mashhad, Buddha Pūrṇimā 2099 falls on Monday 4 May. Pūrṇimā runs from 00:10 on Mon 4 May to 21:31 on Mon 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34652, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-05-04T00:10:07+03:30", "utc": "2099-05-03T20:40:07Z", "ms": 4081524007273.477 }, "end": { "local": "2099-05-04T21:30:37+03:30", "utc": "2099-05-04T18:00:37Z", "ms": 4081600836786.179 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-04T00:10:07+03:30", "utc": "2099-05-03T20:40:07Z", "ms": 4081524007273.477 }, "end": { "local": "2099-05-04T21:30:37+03:30", "utc": "2099-05-04T18:00:37Z", "ms": 4081600836786.179 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-03", "window": { "start": { "local": "2099-05-03T11:05:11+03:30", "utc": "2099-05-03T07:35:11Z", "ms": 4081476910699.462 }, "end": { "local": "2099-05-03T11:53:11+03:30", "utc": "2099-05-03T08:23:11Z", "ms": 4081479790699.462 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-05-04", "window": { "start": { "local": "2099-05-04T11:05:05+03:30", "utc": "2099-05-04T07:35:05Z", "ms": 4081563305000.6646 }, "end": { "local": "2099-05-04T11:53:05+03:30", "utc": "2099-05-04T08:23:05Z", "ms": 4081566185000.6646 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:10 on Mon 4 May to 21:31 on Mon 4 May.", "fact": "2099-05-03T20:40:07Z → 2099-05-04T18:00:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 3rd, 11:05–11:53 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34652 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Mashhad, 2099: Monday 4 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sampat-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-04", "confidence": "determinate" } ], "quote": "In Mashhad, Sampat Gaurī Vrata 2099 falls on Monday 4 May. Pūrṇimā runs from 00:10 on Mon 4 May to 21:31 on Mon 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-05-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20579, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-05-07T16:06:02+03:30", "utc": "2099-05-07T12:36:02Z", "ms": 4081840561900.4146 }, "end": { "local": "2099-05-08T15:34:02+03:30", "utc": "2099-05-08T12:04:02Z", "ms": 4081925042325.9727 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-07T16:06:02+03:30", "utc": "2099-05-07T12:36:02Z", "ms": 4081840561900.4146 }, "end": { "local": "2099-05-08T15:34:02+03:30", "utc": "2099-05-08T12:04:02Z", "ms": 4081925042325.9727 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-05-07", "window": { "start": { "local": "2099-05-07T21:49:01+03:30", "utc": "2099-05-07T18:19:01Z", "ms": 4081861141339.9116 }, "end": { "local": "2099-05-07T21:49:01+03:30", "utc": "2099-05-07T18:19:01Z", "ms": 4081861141339.9116 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-05-08", "window": { "start": { "local": "2099-05-08T22:45:16+03:30", "utc": "2099-05-08T19:15:16Z", "ms": 4081950916083.0957 }, "end": { "local": "2099-05-08T22:45:16+03:30", "utc": "2099-05-08T19:15:16Z", "ms": 4081950916083.0957 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:06 on Thu 7 May to 15:34 on Fri 8 May.", "fact": "2099-05-07T12:36:02Z → 2099-05-08T12:04:02Z" }, { "step": "kaala", "text": "Moonrise is at 21:49 on the 7th and 22:45 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20579 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Thursday 7 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-07", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Thursday 7 May. Caturthī runs from 16:06 on Thu 7 May to 15:34 on Fri 8 May and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-05-07", "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/2099/ekadashi?on=2099-05-15", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 948, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-05-15T01:46:32+03:30", "utc": "2099-05-14T22:16:32Z", "ms": 4082480191790.2236 }, "end": { "local": "2099-05-16T04:09:20+03:30", "utc": "2099-05-16T00:39:20Z", "ms": 4082575159700.255 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-15T01:46:32+03:30", "utc": "2099-05-14T22:16:32Z", "ms": 4082480191790.2236 }, "end": { "local": "2099-05-16T04:09:20+03:30", "utc": "2099-05-16T00:39:20Z", "ms": 4082575159700.255 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-05-15", "window": { "start": { "local": "2099-05-15T04:25:54+03:30", "utc": "2099-05-15T00:55:54Z", "ms": 4082489754272.3667 }, "end": { "local": "2099-05-15T04:25:54+03:30", "utc": "2099-05-15T00:55:54Z", "ms": 4082489754272.3667 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-05-16", "window": { "start": { "local": "2099-05-16T04:25:08+03:30", "utc": "2099-05-16T00:55:08Z", "ms": 4082576107507.083 }, "end": { "local": "2099-05-16T04:25:08+03:30", "utc": "2099-05-16T00:55:08Z", "ms": 4082576107507.083 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:47 on Fri 15 May to 04:09 on Sat 16 May.", "fact": "2099-05-14T22:16:32Z → 2099-05-16T00:39:20Z" }, { "step": "kaala", "text": "Sunrise is at 04:26 on the 15th and 04:25 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 948 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Mashhad, 2099: Friday 15 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": "2099-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-15", "confidence": "determinate" } ], "quote": "In Mashhad, Aparā Ekādaśī 2099 falls on Friday 15 May. Ekādaśī runs from 01:47 on Fri 15 May to 04:09 on Sat 16 May and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-05-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-05-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37059, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-05-17T06:08:51+03:30", "utc": "2099-05-17T02:38:51Z", "ms": 4082668730547.6772 }, "end": { "local": "2099-05-18T07:37:06+03:30", "utc": "2099-05-18T04:07:06Z", "ms": 4082760426466.562 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-17T06:08:51+03:30", "utc": "2099-05-17T02:38:51Z", "ms": 4082668730547.6772 }, "end": { "local": "2099-05-18T07:37:06+03:30", "utc": "2099-05-18T04:07:06Z", "ms": 4082760426466.562 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-05-16", "window": { "start": { "local": "2099-05-16T18:32:14+03:30", "utc": "2099-05-16T15:02:14Z", "ms": 4082626933989.992 }, "end": { "local": "2099-05-16T19:51:11+03:30", "utc": "2099-05-16T16:21:11Z", "ms": 4082631671091.195 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "2099-05-17", "window": { "start": { "local": "2099-05-17T18:33:03+03:30", "utc": "2099-05-17T15:03:03Z", "ms": 4082713382647.7354 }, "end": { "local": "2099-05-17T19:51:47+03:30", "utc": "2099-05-17T16:21:47Z", "ms": 4082718107430.3643 } }, "covered_min": 79, "window_min": 79, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:09 on Sun 17 May to 07:37 on Mon 18 May.", "fact": "2099-05-17T02:38:51Z → 2099-05-18T04:07:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:32–19:51 on the 16th, 18:33–19:52 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 79 minutes on the 16th and 79 of 79 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37059 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Sunday 17 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": "2099-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-17", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Sunday 17 May. Trayodaśī runs from 06:09 on Sun 17 May to 07:37 on Mon 18 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-05-17", "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/2099/shivaratri?on=2099-05-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27886, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-05-18T07:37:06+03:30", "utc": "2099-05-18T04:07:06Z", "ms": 4082760426466.562 }, "end": { "local": "2099-05-19T08:30:22+03:30", "utc": "2099-05-19T05:00:22Z", "ms": 4082850022258.743 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-18T07:37:06+03:30", "utc": "2099-05-18T04:07:06Z", "ms": 4082760426466.562 }, "end": { "local": "2099-05-19T08:30:22+03:30", "utc": "2099-05-19T05:00:22Z", "ms": 4082850022258.743 } }, "kaala": "nishita", "days": [ { "local_date": "2099-05-17", "window": { "start": { "local": "2099-05-17T23:04:21+03:30", "utc": "2099-05-17T19:34:21Z", "ms": 4082729660582.5947 }, "end": { "local": "2099-05-17T23:52:21+03:30", "utc": "2099-05-17T20:22:21Z", "ms": 4082732540582.5947 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-05-18", "window": { "start": { "local": "2099-05-18T23:04:24+03:30", "utc": "2099-05-18T19:34:24Z", "ms": 4082816063610.6143 }, "end": { "local": "2099-05-18T23:52:24+03:30", "utc": "2099-05-18T20:22:24Z", "ms": 4082818943610.6143 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:37 on Mon 18 May to 08:30 on Tue 19 May.", "fact": "2099-05-18T04:07:06Z → 2099-05-19T05:00:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:04–23:52 on the 17th, 23:04–23:52 on the 18th.", "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 17th and 48 of 48 on the 18th.", "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 27886 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Monday 18 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-18", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Monday 18 May. Caturdaśī runs from 07:37 on Mon 18 May to 08:30 on Tue 19 May and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-05-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11608, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2099-05-22T07:51:31+03:30", "utc": "2099-05-22T04:21:31Z", "ms": 4083106891378.2324 }, "end": { "local": "2099-05-23T06:45:23+03:30", "utc": "2099-05-23T03:15:23Z", "ms": 4083189322768.4463 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-22T07:51:31+03:30", "utc": "2099-05-22T04:21:31Z", "ms": 4083106891378.2324 }, "end": { "local": "2099-05-23T06:45:23+03:30", "utc": "2099-05-23T03:15:23Z", "ms": 4083189322768.4463 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-22", "window": { "start": { "local": "2099-05-22T11:04:59+03:30", "utc": "2099-05-22T07:34:59Z", "ms": 4083118499094.7593 }, "end": { "local": "2099-05-22T11:52:59+03:30", "utc": "2099-05-22T08:22:59Z", "ms": 4083121379094.7593 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-05-23", "window": { "start": { "local": "2099-05-23T11:05:04+03:30", "utc": "2099-05-23T07:35:04Z", "ms": 4083204903974.967 }, "end": { "local": "2099-05-23T11:53:04+03:30", "utc": "2099-05-23T08:23:04Z", "ms": 4083207783974.967 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 07:52 on Fri 22 May to 06:45 on Sat 23 May.", "fact": "2099-05-22T04:21:31Z → 2099-05-23T03:15:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 22nd, 11:05–11:53 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11608 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Mashhad, 2099: Friday 22 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-22", "confidence": "determinate" } ], "quote": "In Mashhad, Rambhā Tṛtīyā 2099 falls on Friday 22 May. Tṛtīyā runs from 07:52 on Fri 22 May to 06:45 on Sat 23 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vinayaka-chaturthi?on=2099-05-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15581, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-05-23T06:45:23+03:30", "utc": "2099-05-23T03:15:23Z", "ms": 4083189322768.4463 }, "end": { "local": "2099-05-24T05:20:30+03:30", "utc": "2099-05-24T01:50:30Z", "ms": 4083270630212.9307 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-23T06:45:23+03:30", "utc": "2099-05-23T03:15:23Z", "ms": 4083189322768.4463 }, "end": { "local": "2099-05-24T05:20:30+03:30", "utc": "2099-05-24T01:50:30Z", "ms": 4083270630212.9307 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-23", "window": { "start": { "local": "2099-05-23T11:05:04+03:30", "utc": "2099-05-23T07:35:04Z", "ms": 4083204903974.967 }, "end": { "local": "2099-05-23T11:53:04+03:30", "utc": "2099-05-23T08:23:04Z", "ms": 4083207783974.967 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-05-24", "window": { "start": { "local": "2099-05-24T11:05:09+03:30", "utc": "2099-05-24T07:35:09Z", "ms": 4083291309341.1675 }, "end": { "local": "2099-05-24T11:53:09+03:30", "utc": "2099-05-24T08:23:09Z", "ms": 4083294189341.1675 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:45 on Sat 23 May to 05:21 on Sun 24 May.", "fact": "2099-05-23T03:15:23Z → 2099-05-24T01:50:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 23rd, 11:05–11:53 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15581 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Saturday 23 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": "2099-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-23", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Saturday 23 May. Caturthī runs from 06:45 on Sat 23 May to 05:21 on Sun 24 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-05-23", "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/2099/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26653, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2099-05-25T03:41:02+03:30", "utc": "2099-05-25T00:11:02Z", "ms": 4083351062184.31 }, "end": { "local": "2099-05-26T01:50:16+03:30", "utc": "2099-05-25T22:20:16Z", "ms": 4083430815995.392 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-25T03:41:02+03:30", "utc": "2099-05-25T00:11:02Z", "ms": 4083351062184.31 }, "end": { "local": "2099-05-26T01:50:16+03:30", "utc": "2099-05-25T22:20:16Z", "ms": 4083430815995.392 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-25", "window": { "start": { "local": "2099-05-25T11:05:15+03:30", "utc": "2099-05-25T07:35:15Z", "ms": 4083377715179.0576 }, "end": { "local": "2099-05-25T11:53:15+03:30", "utc": "2099-05-25T08:23:15Z", "ms": 4083380595179.0576 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-05-26", "window": { "start": { "local": "2099-05-26T11:05:21+03:30", "utc": "2099-05-26T07:35:21Z", "ms": 4083464121474.424 }, "end": { "local": "2099-05-26T11:53:21+03:30", "utc": "2099-05-26T08:23:21Z", "ms": 4083467001474.424 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:41 on Mon 25 May to 01:50 on Tue 26 May.", "fact": "2099-05-25T00:11:02Z → 2099-05-25T22:20:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 25th, 11:05–11:53 on the 26th.", "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 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26653 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Mashhad, 2099: Monday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-25", "confidence": "determinate" } ], "quote": "In Mashhad, Araṇya Gaurī Vrata 2099 falls on Monday 25 May. Ṣaṣṭhī runs from 03:41 on Mon 25 May to 01:50 on Tue 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26653, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2099-05-25T03:41:02+03:30", "utc": "2099-05-25T00:11:02Z", "ms": 4083351062184.31 }, "end": { "local": "2099-05-26T01:50:16+03:30", "utc": "2099-05-25T22:20:16Z", "ms": 4083430815995.392 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-25T03:41:02+03:30", "utc": "2099-05-25T00:11:02Z", "ms": 4083351062184.31 }, "end": { "local": "2099-05-26T01:50:16+03:30", "utc": "2099-05-25T22:20:16Z", "ms": 4083430815995.392 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-25", "window": { "start": { "local": "2099-05-25T11:05:15+03:30", "utc": "2099-05-25T07:35:15Z", "ms": 4083377715179.0576 }, "end": { "local": "2099-05-25T11:53:15+03:30", "utc": "2099-05-25T08:23:15Z", "ms": 4083380595179.0576 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-05-26", "window": { "start": { "local": "2099-05-26T11:05:21+03:30", "utc": "2099-05-26T07:35:21Z", "ms": 4083464121474.424 }, "end": { "local": "2099-05-26T11:53:21+03:30", "utc": "2099-05-26T08:23:21Z", "ms": 4083467001474.424 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:41 on Mon 25 May to 01:50 on Tue 26 May.", "fact": "2099-05-25T00:11:02Z → 2099-05-25T22:20:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 25th, 11:05–11:53 on the 26th.", "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 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26653 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Mashhad, 2099: Monday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-25", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2099 falls on Monday 25 May. Ṣaṣṭhī runs from 03:41 on Mon 25 May to 01:50 on Tue 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-05-30", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38528, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-05-29T17:16:00+03:30", "utc": "2099-05-29T13:46:00Z", "ms": 4083745559649.7363 }, "end": { "local": "2099-05-30T14:59:06+03:30", "utc": "2099-05-30T11:29:06Z", "ms": 4083823746212.8276 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-29T17:16:00+03:30", "utc": "2099-05-29T13:46:00Z", "ms": 4083745559649.7363 }, "end": { "local": "2099-05-30T14:59:06+03:30", "utc": "2099-05-30T11:29:06Z", "ms": 4083823746212.8276 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-05-29", "window": { "start": { "local": "2099-05-29T04:17:22+03:30", "utc": "2099-05-29T00:47:22Z", "ms": 4083698842476.5493 }, "end": { "local": "2099-05-29T04:17:22+03:30", "utc": "2099-05-29T00:47:22Z", "ms": 4083698842476.5493 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-05-30", "window": { "start": { "local": "2099-05-30T04:16:58+03:30", "utc": "2099-05-30T00:46:58Z", "ms": 4083785218145.4673 }, "end": { "local": "2099-05-30T04:16:58+03:30", "utc": "2099-05-30T00:46:58Z", "ms": 4083785218145.4673 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:16 on Fri 29 May to 14:59 on Sat 30 May.", "fact": "2099-05-29T13:46:00Z → 2099-05-30T11:29:06Z" }, { "step": "kaala", "text": "Sunrise is at 04:17 on the 29th and 04:17 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 38528 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Mashhad, 2099: Saturday 30 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": "2099-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-30", "confidence": "determinate" } ], "quote": "In Mashhad, Nirjalā Ekādaśī 2099 falls on Saturday 30 May. Ekādaśī runs from 17:16 on Fri 29 May to 14:59 on Sat 30 May and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-05-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3041, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2099-05-30T14:59:06+03:30", "utc": "2099-05-30T11:29:06Z", "ms": 4083823746212.8276 }, "end": { "local": "2099-05-31T12:44:41+03:30", "utc": "2099-05-31T09:14:41Z", "ms": 4083902080830.709 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-30T14:59:06+03:30", "utc": "2099-05-30T11:29:06Z", "ms": 4083823746212.8276 }, "end": { "local": "2099-05-31T12:44:41+03:30", "utc": "2099-05-31T09:14:41Z", "ms": 4083902080830.709 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-05-30", "window": { "start": { "local": "2099-05-30T11:05:51+03:30", "utc": "2099-05-30T07:35:51Z", "ms": 4083809750961.9346 }, "end": { "local": "2099-05-30T11:53:51+03:30", "utc": "2099-05-30T08:23:51Z", "ms": 4083812630961.9346 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-05-31", "window": { "start": { "local": "2099-05-31T11:05:59+03:30", "utc": "2099-05-31T07:35:59Z", "ms": 4083896159347.834 }, "end": { "local": "2099-05-31T11:53:59+03:30", "utc": "2099-05-31T08:23:59Z", "ms": 4083899039347.834 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:59 on Sat 30 May to 12:45 on Sun 31 May.", "fact": "2099-05-30T11:29:06Z → 2099-05-31T09:14:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 30th, 11:06–11:54 on the 31st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3041 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Mashhad, 2099: Sunday 31 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-05-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-31", "confidence": "determinate" } ], "quote": "In Mashhad, Śrī Rāma Dvādaśī 2099 falls on Sunday 31 May. Dvādaśī runs from 14:59 on Sat 30 May to 12:45 on Sun 31 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pradosha-vrata?on=2099-05-31", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-05-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21522, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-05-31T12:44:41+03:30", "utc": "2099-05-31T09:14:41Z", "ms": 4083902080830.709 }, "end": { "local": "2099-06-01T10:37:28+03:30", "utc": "2099-06-01T07:07:28Z", "ms": 4083980848355.711 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-05-31T12:44:41+03:30", "utc": "2099-05-31T09:14:41Z", "ms": 4083902080830.709 }, "end": { "local": "2099-06-01T10:37:28+03:30", "utc": "2099-06-01T07:07:28Z", "ms": 4083980848355.711 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-05-31", "window": { "start": { "local": "2099-05-31T18:43:23+03:30", "utc": "2099-05-31T15:13:23Z", "ms": 4083923603195.727 }, "end": { "local": "2099-05-31T19:59:46+03:30", "utc": "2099-05-31T16:29:46Z", "ms": 4083928186042.6963 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "2099-06-01", "window": { "start": { "local": "2099-06-01T18:44:02+03:30", "utc": "2099-06-01T15:14:02Z", "ms": 4084010041683.1743 }, "end": { "local": "2099-06-01T20:00:17+03:30", "utc": "2099-06-01T16:30:17Z", "ms": 4084014616831.6807 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:45 on Sun 31 May to 10:37 on Mon 1 Jun.", "fact": "2099-05-31T09:14:41Z → 2099-06-01T07:07:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:00 on the 31st, 18:44–20:00 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 76 of 76 minutes on the 31st and 0 of 76 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21522 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Sunday 31 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": "2099-05-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-05-31", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Sunday 31 May. Trayodaśī runs from 12:45 on Sun 31 May to 10:37 on Mon 1 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-05-31", "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/2099/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36079, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-06-02T08:43:21+03:30", "utc": "2099-06-02T05:13:21Z", "ms": 4084060400659.363 }, "end": { "local": "2099-06-03T07:09:00+03:30", "utc": "2099-06-03T03:39:00Z", "ms": 4084141139623.321 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-02T08:43:21+03:30", "utc": "2099-06-02T05:13:21Z", "ms": 4084060400659.363 }, "end": { "local": "2099-06-03T07:09:00+03:30", "utc": "2099-06-03T03:39:00Z", "ms": 4084141139623.321 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-06-02", "window": { "start": { "local": "2099-06-02T18:44:39+03:30", "utc": "2099-06-02T15:14:39Z", "ms": 4084096479209.5327 }, "end": { "local": "2099-06-02T20:00:47+03:30", "utc": "2099-06-02T16:30:47Z", "ms": 4084101047015.394 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "2099-06-03", "window": { "start": { "local": "2099-06-03T18:45:16+03:30", "utc": "2099-06-03T15:15:16Z", "ms": 4084182915743.3486 }, "end": { "local": "2099-06-03T20:01:17+03:30", "utc": "2099-06-03T16:31:17Z", "ms": 4084187476567.3496 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:43 on Tue 2 Jun to 07:09 on Wed 3 Jun.", "fact": "2099-06-02T05:13:21Z → 2099-06-03T03:39:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:45–20:01 on the 2nd, 18:45–20:01 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 76 of 76 minutes on the 2nd and 0 of 76 on the 3rd.", "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 36079 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Mashhad, 2099: Tuesday 2 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": "2099-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-02", "confidence": "determinate" } ], "quote": "In Mashhad, Vaṭa Sāvitrī Vrata 2099 falls on Tuesday 2 June. Pūrṇimā runs from 08:43 on Tue 2 Jun to 07:09 on Wed 3 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-06-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29311, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-06-06T05:31:43+03:30", "utc": "2099-06-06T02:01:43Z", "ms": 4084394503308.575 }, "end": { "local": "2099-06-07T06:17:20+03:30", "utc": "2099-06-07T02:47:20Z", "ms": 4084483639780.3335 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-06T05:31:43+03:30", "utc": "2099-06-06T02:01:43Z", "ms": 4084394503308.575 }, "end": { "local": "2099-06-07T06:17:20+03:30", "utc": "2099-06-07T02:47:20Z", "ms": 4084483639780.3335 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-06-05", "window": { "start": { "local": "2099-06-05T21:23:13+03:30", "utc": "2099-06-05T17:53:13Z", "ms": 4084365192807.9883 }, "end": { "local": "2099-06-05T21:23:13+03:30", "utc": "2099-06-05T17:53:13Z", "ms": 4084365192807.9883 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-06-06", "window": { "start": { "local": "2099-06-06T22:04:59+03:30", "utc": "2099-06-06T18:34:59Z", "ms": 4084454099222.5513 }, "end": { "local": "2099-06-06T22:04:59+03:30", "utc": "2099-06-06T18:34:59Z", "ms": 4084454099222.5513 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:32 on Sat 6 Jun to 06:17 on Sun 7 Jun.", "fact": "2099-06-06T02:01:43Z → 2099-06-07T02:47:20Z" }, { "step": "kaala", "text": "Moonrise is at 21:23 on the 5th and 22:05 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29311 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Saturday 6 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": "2099-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-06", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Saturday 6 June. Caturthī runs from 05:32 on Sat 6 Jun to 06:17 on Sun 7 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-06-06", "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/2099/ekadashi?on=2099-06-14", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27620, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-06-13T19:05:08+03:30", "utc": "2099-06-13T15:35:08Z", "ms": 4085048108437.1445 }, "end": { "local": "2099-06-14T20:34:01+03:30", "utc": "2099-06-14T17:04:01Z", "ms": 4085139841202.2446 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-13T19:05:08+03:30", "utc": "2099-06-13T15:35:08Z", "ms": 4085048108437.1445 }, "end": { "local": "2099-06-14T20:34:01+03:30", "utc": "2099-06-14T17:04:01Z", "ms": 4085139841202.2446 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-06-14", "window": { "start": { "local": "2099-06-14T04:14:18+03:30", "utc": "2099-06-14T00:44:18Z", "ms": 4085081058091.455 }, "end": { "local": "2099-06-14T04:14:18+03:30", "utc": "2099-06-14T00:44:18Z", "ms": 4085081058091.455 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-06-15", "window": { "start": { "local": "2099-06-15T04:14:21+03:30", "utc": "2099-06-15T00:44:21Z", "ms": 4085167461042.055 }, "end": { "local": "2099-06-15T04:14:21+03:30", "utc": "2099-06-15T00:44:21Z", "ms": 4085167461042.055 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:05 on Sat 13 Jun to 20:34 on Sun 14 Jun.", "fact": "2099-06-13T15:35:08Z → 2099-06-14T17:04:01Z" }, { "step": "kaala", "text": "Sunrise is at 04:14 on the 14th and 04:14 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 27620 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Mashhad, 2099: Sunday 14 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": "2099-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-14", "confidence": "determinate" } ], "quote": "In Mashhad, Yoginī Ekādaśī 2099 falls on Sunday 14 June. Ekādaśī runs from 19:05 on Sat 13 Jun to 20:34 on Sun 14 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-06-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-06-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4562, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-06-15T21:22:13+03:30", "utc": "2099-06-15T17:52:13Z", "ms": 4085229133153.24 }, "end": { "local": "2099-06-16T21:27:44+03:30", "utc": "2099-06-16T17:57:44Z", "ms": 4085315863936.331 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-15T21:22:13+03:30", "utc": "2099-06-15T17:52:13Z", "ms": 4085229133153.24 }, "end": { "local": "2099-06-16T21:27:44+03:30", "utc": "2099-06-16T17:57:44Z", "ms": 4085315863936.331 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-06-15", "window": { "start": { "local": "2099-06-15T18:51:05+03:30", "utc": "2099-06-15T15:21:05Z", "ms": 4085220064575.4663 }, "end": { "local": "2099-06-15T20:06:11+03:30", "utc": "2099-06-15T16:36:11Z", "ms": 4085224571384.2544 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "2099-06-16", "window": { "start": { "local": "2099-06-16T18:51:25+03:30", "utc": "2099-06-16T15:21:25Z", "ms": 4085306485149.0234 }, "end": { "local": "2099-06-16T20:06:30+03:30", "utc": "2099-06-16T16:36:30Z", "ms": 4085310990045.125 } }, "covered_min": 75, "window_min": 75, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:22 on Mon 15 Jun to 21:28 on Tue 16 Jun.", "fact": "2099-06-15T17:52:13Z → 2099-06-16T17:57:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:06 on the 15th, 18:51–20:07 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 75 minutes on the 15th and 75 of 75 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 4562 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Tuesday 16 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": "2099-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-16", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Tuesday 16 June. Trayodaśī runs from 21:22 on Mon 15 Jun to 21:28 on Tue 16 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-06-16", "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/2099/shivaratri?on=2099-06-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6075, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-06-16T21:27:44+03:30", "utc": "2099-06-16T17:57:44Z", "ms": 4085315863936.331 }, "end": { "local": "2099-06-17T20:52:42+03:30", "utc": "2099-06-17T17:22:42Z", "ms": 4085400161674.8374 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-16T21:27:44+03:30", "utc": "2099-06-16T17:57:44Z", "ms": 4085315863936.331 }, "end": { "local": "2099-06-17T20:52:42+03:30", "utc": "2099-06-17T17:22:42Z", "ms": 4085400161674.8374 } }, "kaala": "nishita", "days": [ { "local_date": "2099-06-16", "window": { "start": { "local": "2099-06-16T23:08:59+03:30", "utc": "2099-06-16T19:38:59Z", "ms": 4085321938509.4043 }, "end": { "local": "2099-06-16T23:56:59+03:30", "utc": "2099-06-16T20:26:59Z", "ms": 4085324818509.4043 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-06-17", "window": { "start": { "local": "2099-06-17T23:09:12+03:30", "utc": "2099-06-17T19:39:12Z", "ms": 4085408351982.708 }, "end": { "local": "2099-06-17T23:57:12+03:30", "utc": "2099-06-17T20:27:12Z", "ms": 4085411231982.708 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:28 on Tue 16 Jun to 20:53 on Wed 17 Jun.", "fact": "2099-06-16T17:57:44Z → 2099-06-17T17:22:42Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:09–23:57 on the 16th, 23:09–23:57 on the 17th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6075 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Tuesday 16 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": "2099-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-16", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Tuesday 16 June. Caturdaśī runs from 21:28 on Tue 16 Jun to 20:53 on Wed 17 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-06-16", "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/2099/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14724, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2099-06-19T18:03:11+03:30", "utc": "2099-06-19T14:33:11Z", "ms": 4085562791052.3857 }, "end": { "local": "2099-06-20T16:03:10+03:30", "utc": "2099-06-20T12:33:10Z", "ms": 4085641990338.0596 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-19T18:03:11+03:30", "utc": "2099-06-19T14:33:11Z", "ms": 4085562791052.3857 }, "end": { "local": "2099-06-20T16:03:10+03:30", "utc": "2099-06-20T12:33:10Z", "ms": 4085641990338.0596 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-06-19", "window": { "start": { "local": "2099-06-19T11:09:34+03:30", "utc": "2099-06-19T07:39:34Z", "ms": 4085537973545.675 }, "end": { "local": "2099-06-19T11:57:34+03:30", "utc": "2099-06-19T08:27:34Z", "ms": 4085540853545.675 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-06-20", "window": { "start": { "local": "2099-06-20T11:09:46+03:30", "utc": "2099-06-20T07:39:46Z", "ms": 4085624386300.085 }, "end": { "local": "2099-06-20T11:57:46+03:30", "utc": "2099-06-20T08:27:46Z", "ms": 4085627266300.085 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 18:03 on Fri 19 Jun to 16:03 on Sat 20 Jun.", "fact": "2099-06-19T14:33:11Z → 2099-06-20T12:33:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:10–11:58 on the 19th, 11:10–11:58 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 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: paraviddha → only-day · margin 14724 s" }, { "step": "ruling", "text": "Rathayātrā, Mashhad, 2099: Saturday 20 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-20", "confidence": "determinate" } ], "quote": "In Mashhad, Rathayātrā 2099 falls on Saturday 20 June. Dvitīyā runs from 18:03 on Fri 19 Jun to 16:03 on Sat 20 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1145, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2099-06-22T11:29:17+03:30", "utc": "2099-06-22T07:59:17Z", "ms": 4085798356613.1255 }, "end": { "local": "2099-06-23T09:07:39+03:30", "utc": "2099-06-23T05:37:39Z", "ms": 4085876259127.6226 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-22T11:29:17+03:30", "utc": "2099-06-22T07:59:17Z", "ms": 4085798356613.1255 }, "end": { "local": "2099-06-23T09:07:39+03:30", "utc": "2099-06-23T05:37:39Z", "ms": 4085876259127.6226 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-06-22", "window": { "start": { "local": "2099-06-22T11:10:12+03:30", "utc": "2099-06-22T07:40:12Z", "ms": 4085797211694.1045 }, "end": { "local": "2099-06-22T11:58:12+03:30", "utc": "2099-06-22T08:28:12Z", "ms": 4085800091694.1045 } }, "covered_min": 29, "window_min": 48, "qualifies": true }, { "local_date": "2099-06-23", "window": { "start": { "local": "2099-06-23T11:10:24+03:30", "utc": "2099-06-23T07:40:24Z", "ms": 4085883624277.984 }, "end": { "local": "2099-06-23T11:58:24+03:30", "utc": "2099-06-23T08:28:24Z", "ms": 4085886504277.984 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 11:29 on Mon 22 Jun to 09:08 on Tue 23 Jun.", "fact": "2099-06-22T07:59:17Z → 2099-06-23T05:37:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:10–11:58 on the 22nd, 11:10–11:58 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 29 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1145 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Mashhad, 2099: Monday 22 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-06-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-22", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Pañcamī 2099 falls on Monday 22 June. Pañcamī runs from 11:29 on Mon 22 Jun to 09:08 on Tue 23 Jun and covers 29 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vinayaka-chaturthi?on=2099-06-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1145, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-06-21T13:49:38+03:30", "utc": "2099-06-21T10:19:38Z", "ms": 4085720378096.2856 }, "end": { "local": "2099-06-22T11:29:17+03:30", "utc": "2099-06-22T07:59:17Z", "ms": 4085798356613.1255 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-21T13:49:38+03:30", "utc": "2099-06-21T10:19:38Z", "ms": 4085720378096.2856 }, "end": { "local": "2099-06-22T11:29:17+03:30", "utc": "2099-06-22T07:59:17Z", "ms": 4085798356613.1255 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-06-21", "window": { "start": { "local": "2099-06-21T11:09:59+03:30", "utc": "2099-06-21T07:39:59Z", "ms": 4085710799025.666 }, "end": { "local": "2099-06-21T11:57:59+03:30", "utc": "2099-06-21T08:27:59Z", "ms": 4085713679025.666 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-06-22", "window": { "start": { "local": "2099-06-22T11:10:12+03:30", "utc": "2099-06-22T07:40:12Z", "ms": 4085797211694.1045 }, "end": { "local": "2099-06-22T11:58:12+03:30", "utc": "2099-06-22T08:28:12Z", "ms": 4085800091694.1045 } }, "covered_min": 19, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:50 on Sun 21 Jun to 11:29 on Mon 22 Jun.", "fact": "2099-06-21T10:19:38Z → 2099-06-22T07:59:17Z" }, { "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": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 19 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1145 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Monday 22 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": "2099-06-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-22", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Monday 22 June. Caturthī runs from 13:50 on Sun 21 Jun to 11:29 on Mon 22 Jun and covers 19 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-06-22", "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/2099/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15698, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2099-06-24T06:48:58+03:30", "utc": "2099-06-24T03:18:58Z", "ms": 4085954338271.556 }, "end": { "local": "2099-06-25T04:36:08+03:30", "utc": "2099-06-25T01:06:08Z", "ms": 4086032767885.0474 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-24T06:48:58+03:30", "utc": "2099-06-24T03:18:58Z", "ms": 4085954338271.556 }, "end": { "local": "2099-06-25T04:36:08+03:30", "utc": "2099-06-25T01:06:08Z", "ms": 4086032767885.0474 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-06-24", "window": { "start": { "local": "2099-06-24T11:10:37+03:30", "utc": "2099-06-24T07:40:37Z", "ms": 4085970036751.1836 }, "end": { "local": "2099-06-24T11:58:37+03:30", "utc": "2099-06-24T08:28:37Z", "ms": 4085972916751.1836 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-06-25", "window": { "start": { "local": "2099-06-25T11:10:49+03:30", "utc": "2099-06-25T07:40:49Z", "ms": 4086056449089.0894 }, "end": { "local": "2099-06-25T11:58:49+03:30", "utc": "2099-06-25T08:28:49Z", "ms": 4086059329089.0894 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 06:49 on Wed 24 Jun to 04:36 on Thu 25 Jun.", "fact": "2099-06-24T03:18:58Z → 2099-06-25T01:06:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 24th, 11:11–11:59 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15698 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Mashhad, 2099: Wednesday 24 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-06-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-24", "confidence": "determinate" } ], "quote": "In Mashhad, Vivasvat Saptamī 2099 falls on Wednesday 24 June. Saptamī runs from 06:49 on Wed 24 Jun to 04:36 on Thu 25 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-06-28", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19732, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-06-27T22:48:29+03:30", "utc": "2099-06-27T19:18:29Z", "ms": 4086271108500.606 }, "end": { "local": "2099-06-28T21:13:52+03:30", "utc": "2099-06-28T17:43:52Z", "ms": 4086351831608.335 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-27T22:48:29+03:30", "utc": "2099-06-27T19:18:29Z", "ms": 4086271108500.606 }, "end": { "local": "2099-06-28T21:13:52+03:30", "utc": "2099-06-28T17:43:52Z", "ms": 4086351831608.335 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-06-28", "window": { "start": { "local": "2099-06-28T04:17:20+03:30", "utc": "2099-06-28T00:47:20Z", "ms": 4086290840463.8574 }, "end": { "local": "2099-06-28T04:17:20+03:30", "utc": "2099-06-28T00:47:20Z", "ms": 4086290840463.8574 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-06-29", "window": { "start": { "local": "2099-06-29T04:17:44+03:30", "utc": "2099-06-29T00:47:44Z", "ms": 4086377264134.769 }, "end": { "local": "2099-06-29T04:17:44+03:30", "utc": "2099-06-29T00:47:44Z", "ms": 4086377264134.769 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:48 on Sat 27 Jun to 21:14 on Sun 28 Jun.", "fact": "2099-06-27T19:18:29Z → 2099-06-28T17:43:52Z" }, { "step": "kaala", "text": "Sunrise is at 04:17 on the 28th and 04:18 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 28th and is not on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19732 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Mashhad, 2099: Sunday 28 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-06-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-28", "confidence": "determinate" } ], "quote": "In Mashhad, Hariśayanī Ekādaśī 2099 falls on Sunday 28 June. Ekādaśī runs from 22:48 on Sat 27 Jun to 21:14 on Sun 28 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-06-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-06-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-06-29", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 203, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-06-29T19:53:16+03:30", "utc": "2099-06-29T16:23:16Z", "ms": 4086433395903.018 }, "end": { "local": "2099-06-30T18:50:04+03:30", "utc": "2099-06-30T15:20:04Z", "ms": 4086516003917.7764 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-06-29T19:53:16+03:30", "utc": "2099-06-29T16:23:16Z", "ms": 4086433395903.018 }, "end": { "local": "2099-06-30T18:50:04+03:30", "utc": "2099-06-30T15:20:04Z", "ms": 4086516003917.7764 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-06-29", "window": { "start": { "local": "2099-06-29T18:53:29+03:30", "utc": "2099-06-29T15:23:29Z", "ms": 4086429809160.276 }, "end": { "local": "2099-06-29T20:08:46+03:30", "utc": "2099-06-29T16:38:46Z", "ms": 4086434326481.1274 } }, "covered_min": 16, "window_min": 75, "qualifies": true }, { "local_date": "2099-06-30", "window": { "start": { "local": "2099-06-30T18:53:27+03:30", "utc": "2099-06-30T15:23:27Z", "ms": 4086516206912.948 }, "end": { "local": "2099-06-30T20:08:48+03:30", "utc": "2099-06-30T16:38:48Z", "ms": 4086520728021.819 } }, "covered_min": 0, "window_min": 75, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:53 on Mon 29 Jun to 18:50 on Tue 30 Jun.", "fact": "2099-06-29T16:23:16Z → 2099-06-30T15:20:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:09 on the 29th, 18:53–20:09 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 16 of 75 minutes on the 29th and 0 of 75 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 203 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Monday 29 June.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-06-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-06-29", "confidence": "boundary" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Monday 29 June. Trayodaśī runs from 19:53 on Mon 29 Jun to 18:50 on Tue 30 Jun and covers 16 of 75 minutes of pradoṣa that evening. It is 3 min 23 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-06-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2694, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-07-01T18:08:28+03:30", "utc": "2099-07-01T14:38:28Z", "ms": 4086599908489.3726 }, "end": { "local": "2099-07-02T17:53:07+03:30", "utc": "2099-07-02T14:23:07Z", "ms": 4086685387148.848 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-07-01T18:08:28+03:30", "utc": "2099-07-01T14:38:28Z", "ms": 4086599908489.3726 }, "end": { "local": "2099-07-02T17:53:07+03:30", "utc": "2099-07-02T14:23:07Z", "ms": 4086685387148.848 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-07-01", "window": { "start": { "local": "2099-07-01T18:53:23+03:30", "utc": "2099-07-01T15:23:23Z", "ms": 4086602602924.33 }, "end": { "local": "2099-07-01T20:08:48+03:30", "utc": "2099-07-01T16:38:48Z", "ms": 4086607128213.5083 } }, "covered_min": 75, "window_min": 75, "qualifies": true }, { "local_date": "2099-07-02", "window": { "start": { "local": "2099-07-02T18:53:17+03:30", "utc": "2099-07-02T15:23:17Z", "ms": 4086688997190.542 }, "end": { "local": "2099-07-02T20:08:47+03:30", "utc": "2099-07-02T16:38:47Z", "ms": 4086693527048.8125 } }, "covered_min": 0, "window_min": 75, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:08 on Wed 1 Jul to 17:53 on Thu 2 Jul.", "fact": "2099-07-01T14:38:28Z → 2099-07-02T14:23:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:09 on the 1st, 18:53–20:09 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 75 of 75 minutes on the 1st and 0 of 75 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2694 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Mashhad, 2099: Wednesday 1 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": "2099-07-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-01", "confidence": "determinate" } ], "quote": "In Mashhad, Śiva Śayanotsava 2099 falls on Wednesday 1 July. Pūrṇimā runs from 18:08 on Wed 1 Jul to 17:53 on Thu 2 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36634, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-07-01T18:08:28+03:30", "utc": "2099-07-01T14:38:28Z", "ms": 4086599908489.3726 }, "end": { "local": "2099-07-02T17:53:07+03:30", "utc": "2099-07-02T14:23:07Z", "ms": 4086685387148.848 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-07-01T18:08:28+03:30", "utc": "2099-07-01T14:38:28Z", "ms": 4086599908489.3726 }, "end": { "local": "2099-07-02T17:53:07+03:30", "utc": "2099-07-02T14:23:07Z", "ms": 4086685387148.848 } }, "kaala": "udaya-3", "days": [ { "local_date": "2099-07-02", "window": { "start": { "local": "2099-07-02T04:19:03+03:30", "utc": "2099-07-02T00:49:03Z", "ms": 4086636542593.168 }, "end": { "local": "2099-07-02T07:13:54+03:30", "utc": "2099-07-02T03:43:54Z", "ms": 4086647033512.6426 } }, "covered_min": 175, "window_min": 175, "qualifies": true }, { "local_date": "2099-07-03", "window": { "start": { "local": "2099-07-03T04:19:31+03:30", "utc": "2099-07-03T00:49:31Z", "ms": 4086722971127.5693 }, "end": { "local": "2099-07-03T07:14:15+03:30", "utc": "2099-07-03T03:44:15Z", "ms": 4086733454843.783 } }, "covered_min": 0, "window_min": 175, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:08 on Wed 1 Jul to 17:53 on Thu 2 Jul.", "fact": "2099-07-01T14:38:28Z → 2099-07-02T14:23:07Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 04:19–07:14 on the 2nd, 04:20–07:14 on the 3rd.", "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 175 of 175 minutes on the 2nd and 0 of 175 on the 3rd.", "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 36634 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Mashhad, 2099: Thursday 2 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": "2099-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-02", "confidence": "determinate" } ], "quote": "In Mashhad, Vyāsa Pūjā 2099 falls on Thursday 2 July. Pūrṇimā runs from 18:08 on Wed 1 Jul to 17:53 on Thu 2 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21177, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-07-01T18:08:28+03:30", "utc": "2099-07-01T14:38:28Z", "ms": 4086599908489.3726 }, "end": { "local": "2099-07-02T17:53:07+03:30", "utc": "2099-07-02T14:23:07Z", "ms": 4086685387148.848 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-07-01T18:08:28+03:30", "utc": "2099-07-01T14:38:28Z", "ms": 4086599908489.3726 }, "end": { "local": "2099-07-02T17:53:07+03:30", "utc": "2099-07-02T14:23:07Z", "ms": 4086685387148.848 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-07-01", "window": { "start": { "local": "2099-07-01T11:11:59+03:30", "utc": "2099-07-01T07:41:59Z", "ms": 4086574919076.9043 }, "end": { "local": "2099-07-01T11:59:59+03:30", "utc": "2099-07-01T08:29:59Z", "ms": 4086577799076.9043 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-07-02", "window": { "start": { "local": "2099-07-02T11:12:10+03:30", "utc": "2099-07-02T07:42:10Z", "ms": 4086661329891.855 }, "end": { "local": "2099-07-02T12:00:10+03:30", "utc": "2099-07-02T08:30:10Z", "ms": 4086664209891.855 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:08 on Wed 1 Jul to 17:53 on Thu 2 Jul.", "fact": "2099-07-01T14:38:28Z → 2099-07-02T14:23:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:12–12:00 on the 1st, 11:12–12:00 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21177 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Mashhad, 2099: Thursday 2 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": "2099-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-02", "confidence": "determinate" } ], "quote": "In Mashhad, Guru Pūrṇimā 2099 falls on Thursday 2 July. Pūrṇimā runs from 18:08 on Wed 1 Jul to 17:53 on Thu 2 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-02", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2694, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-07-01T18:08:28+03:30", "utc": "2099-07-01T14:38:28Z", "ms": 4086599908489.3726 }, "end": { "local": "2099-07-02T17:53:07+03:30", "utc": "2099-07-02T14:23:07Z", "ms": 4086685387148.848 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2099-07-01T18:08:28+03:30", "utc": "2099-07-01T14:38:28Z", "ms": 4086599908489.3726 }, "end": { "local": "2099-07-02T17:53:07+03:30", "utc": "2099-07-02T14:23:07Z", "ms": 4086685387148.848 } }, "kaala": "sayahna", "days": [ { "local_date": "2099-07-01", "window": { "start": { "local": "2099-07-01T15:58:25+03:30", "utc": "2099-07-01T12:28:25Z", "ms": 4086592105385.36 }, "end": { "local": "2099-07-01T18:53:23+03:30", "utc": "2099-07-01T15:23:23Z", "ms": 4086602602924.33 } }, "covered_min": 45, "window_min": 175, "qualifies": true }, { "local_date": "2099-07-02", "window": { "start": { "local": "2099-07-02T15:58:26+03:30", "utc": "2099-07-02T12:28:26Z", "ms": 4086678506271.0674 }, "end": { "local": "2099-07-02T18:53:17+03:30", "utc": "2099-07-02T15:23:17Z", "ms": 4086688997190.542 } }, "covered_min": 115, "window_min": 175, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:08 on Wed 1 Jul to 17:53 on Thu 2 Jul.", "fact": "2099-07-01T14:38:28Z → 2099-07-02T14:23:07Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:58–18:53 on the 1st, 15:58–18:53 on the 2nd.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 45 of 175 minutes on the 1st and 115 of 175 on the 2nd.", "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 2694 s" }, { "step": "ruling", "text": "Kokilā Vrata, Mashhad, 2099: Thursday 2 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": "2099-07-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-02", "confidence": "boundary" } ], "quote": "In Mashhad, Kokilā Vrata 2099 falls on Thursday 2 July. Pūrṇimā runs from 18:08 on Wed 1 Jul to 17:53 on Thu 2 Jul and covers 115 of 175 minutes of sāyāhna that late afternoon. It also reaches the previous late afternoon 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/2099/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/2099/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5995, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2099-07-03T18:08:19+03:30", "utc": "2099-07-03T14:38:19Z", "ms": 4086772699406.589 }, "end": { "local": "2099-07-04T18:57:09+03:30", "utc": "2099-07-04T15:27:09Z", "ms": 4086862028877.0967 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-07-03T18:08:19+03:30", "utc": "2099-07-03T14:38:19Z", "ms": 4086772699406.589 }, "end": { "local": "2099-07-04T18:57:09+03:30", "utc": "2099-07-04T15:27:09Z", "ms": 4086862028877.0967 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-07-03", "window": { "start": { "local": "2099-07-03T20:00:06+03:30", "utc": "2099-07-03T16:30:06Z", "ms": 4086779406415.561 }, "end": { "local": "2099-07-03T20:00:06+03:30", "utc": "2099-07-03T16:30:06Z", "ms": 4086779406415.561 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-07-04", "window": { "start": { "local": "2099-07-04T20:37:04+03:30", "utc": "2099-07-04T17:07:04Z", "ms": 4086868023880.4634 }, "end": { "local": "2099-07-04T20:37:04+03:30", "utc": "2099-07-04T17:07:04Z", "ms": 4086868023880.4634 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 18:08 on Fri 3 Jul to 18:57 on Sat 4 Jul.", "fact": "2099-07-03T14:38:19Z → 2099-07-04T15:27:09Z" }, { "step": "kaala", "text": "Moonrise is at 20:00 on the 3rd and 20:37 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5995 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Mashhad, 2099: Friday 3 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": "2099-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-03", "confidence": "determinate" } ], "quote": "In Mashhad, Aśūnya Śayana Vrata (Āṣāḍha) 2099 falls on Friday 3 July. Dvitīyā runs from 18:08 on Fri 3 Jul to 18:57 on Sat 4 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-07-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-05", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2467, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-07-05T20:20:15+03:30", "utc": "2099-07-05T16:50:15Z", "ms": 4086953415380.343 }, "end": { "local": "2099-07-06T22:14:48+03:30", "utc": "2099-07-06T18:44:48Z", "ms": 4087046688420.044 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-07-05T20:20:15+03:30", "utc": "2099-07-05T16:50:15Z", "ms": 4086953415380.343 }, "end": { "local": "2099-07-06T22:14:48+03:30", "utc": "2099-07-06T18:44:48Z", "ms": 4087046688420.044 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-07-05", "window": { "start": { "local": "2099-07-05T21:07:37+03:30", "utc": "2099-07-05T17:37:37Z", "ms": 4086956257348.751 }, "end": { "local": "2099-07-05T21:07:37+03:30", "utc": "2099-07-05T17:37:37Z", "ms": 4086956257348.751 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-07-06", "window": { "start": { "local": "2099-07-06T21:33:41+03:30", "utc": "2099-07-06T18:03:41Z", "ms": 4087044220981.1294 }, "end": { "local": "2099-07-06T21:33:41+03:30", "utc": "2099-07-06T18:03:41Z", "ms": 4087044220981.1294 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:20 on Sun 5 Jul to 22:15 on Mon 6 Jul.", "fact": "2099-07-05T16:50:15Z → 2099-07-06T18:44:48Z" }, { "step": "kaala", "text": "Moonrise is at 21:08 on the 5th and 21:34 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both moonrises qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2467 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Sunday 5 July.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-07-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-05", "confidence": "boundary" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Sunday 5 July. Caturthī runs from 20:20 on Sun 5 Jul to 22:15 on Mon 6 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-07-05", "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/2099/ekadashi?on=2099-07-14", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22005, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-07-13T10:31:59+03:30", "utc": "2099-07-13T07:01:59Z", "ms": 4087609318664.0186 }, "end": { "local": "2099-07-14T10:45:36+03:30", "utc": "2099-07-14T07:15:36Z", "ms": 4087696536274.415 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-07-13T10:31:59+03:30", "utc": "2099-07-13T07:01:59Z", "ms": 4087609318664.0186 }, "end": { "local": "2099-07-14T10:45:36+03:30", "utc": "2099-07-14T07:15:36Z", "ms": 4087696536274.415 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-07-13", "window": { "start": { "local": "2099-07-13T04:25:14+03:30", "utc": "2099-07-13T00:55:14Z", "ms": 4087587313833.474 }, "end": { "local": "2099-07-13T04:25:14+03:30", "utc": "2099-07-13T00:55:14Z", "ms": 4087587313833.474 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-07-14", "window": { "start": { "local": "2099-07-14T04:25:53+03:30", "utc": "2099-07-14T00:55:53Z", "ms": 4087673753083.401 }, "end": { "local": "2099-07-14T04:25:53+03:30", "utc": "2099-07-14T00:55:53Z", "ms": 4087673753083.401 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:32 on Mon 13 Jul to 10:46 on Tue 14 Jul.", "fact": "2099-07-13T07:01:59Z → 2099-07-14T07:15:36Z" }, { "step": "kaala", "text": "Sunrise is at 04:25 on the 13th and 04:26 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 22005 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Mashhad, 2099: Tuesday 14 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": "2099-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-14", "confidence": "determinate" } ], "quote": "In Mashhad, Kāmikā Ekādaśī 2099 falls on Tuesday 14 July. Ekādaśī runs from 10:32 on Mon 13 Jul to 10:46 on Tue 14 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-07-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-07-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31066, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-07-15T10:11:37+03:30", "utc": "2099-07-15T06:41:37Z", "ms": 4087780897455.0024 }, "end": { "local": "2099-07-16T08:53:33+03:30", "utc": "2099-07-16T05:23:33Z", "ms": 4087862613409.9077 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-07-15T10:11:37+03:30", "utc": "2099-07-15T06:41:37Z", "ms": 4087780897455.0024 }, "end": { "local": "2099-07-16T08:53:33+03:30", "utc": "2099-07-16T05:23:33Z", "ms": 4087862613409.9077 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-07-15", "window": { "start": { "local": "2099-07-15T18:49:24+03:30", "utc": "2099-07-15T15:19:24Z", "ms": 4087811963758.603 }, "end": { "local": "2099-07-15T20:06:26+03:30", "utc": "2099-07-15T16:36:26Z", "ms": 4087816586432.8535 } }, "covered_min": 77, "window_min": 77, "qualifies": true }, { "local_date": "2099-07-16", "window": { "start": { "local": "2099-07-16T18:48:54+03:30", "utc": "2099-07-16T15:18:54Z", "ms": 4087898333706.28 }, "end": { "local": "2099-07-16T20:06:06+03:30", "utc": "2099-07-16T16:36:06Z", "ms": 4087902965907.7075 } }, "covered_min": 0, "window_min": 77, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:12 on Wed 15 Jul to 08:54 on Thu 16 Jul.", "fact": "2099-07-15T06:41:37Z → 2099-07-16T05:23:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:49–20:06 on the 15th, 18:49–20:06 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 77 of 77 minutes on the 15th and 0 of 77 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 31066 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Wednesday 15 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": "2099-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-15", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Wednesday 15 July. Trayodaśī runs from 10:12 on Wed 15 Jul to 08:54 on Thu 16 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-07-15", "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/2099/shivaratri?on=2099-07-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24928, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-07-16T08:53:33+03:30", "utc": "2099-07-16T05:23:33Z", "ms": 4087862613409.9077 }, "end": { "local": "2099-07-17T06:57:53+03:30", "utc": "2099-07-17T03:27:53Z", "ms": 4087942072805.117 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-07-16T08:53:33+03:30", "utc": "2099-07-16T05:23:33Z", "ms": 4087862613409.9077 }, "end": { "local": "2099-07-17T06:57:53+03:30", "utc": "2099-07-17T03:27:53Z", "ms": 4087942072805.117 } }, "kaala": "nishita", "days": [ { "local_date": "2099-07-15", "window": { "start": { "local": "2099-07-15T23:14:19+03:30", "utc": "2099-07-15T19:44:19Z", "ms": 4087827858787.043 }, "end": { "local": "2099-07-16T00:02:19+03:30", "utc": "2099-07-15T20:32:19Z", "ms": 4087830738787.043 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-07-16", "window": { "start": { "local": "2099-07-16T23:14:24+03:30", "utc": "2099-07-16T19:44:24Z", "ms": 4087914264461.635 }, "end": { "local": "2099-07-17T00:02:24+03:30", "utc": "2099-07-16T20:32:24Z", "ms": 4087917144461.635 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:54 on Thu 16 Jul to 06:58 on Fri 17 Jul.", "fact": "2099-07-16T05:23:33Z → 2099-07-17T03:27:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:14–00:02 on the 15th, 23:14–00:02 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24928 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Thursday 16 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": "2099-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-16", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Thursday 16 July. Caturdaśī runs from 08:54 on Thu 16 Jul to 06:58 on Fri 17 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-07-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-07-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17691, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-07-20T19:51:43+03:30", "utc": "2099-07-20T16:21:43Z", "ms": 4088247702515.6514 }, "end": { "local": "2099-07-21T16:57:13+03:30", "utc": "2099-07-21T13:27:13Z", "ms": 4088323633234.3184 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-07-20T19:51:43+03:30", "utc": "2099-07-20T16:21:43Z", "ms": 4088247702515.6514 }, "end": { "local": "2099-07-21T16:57:13+03:30", "utc": "2099-07-21T13:27:13Z", "ms": 4088323633234.3184 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-07-20", "window": { "start": { "local": "2099-07-20T11:14:20+03:30", "utc": "2099-07-20T07:44:20Z", "ms": 4088216659864.081 }, "end": { "local": "2099-07-20T12:02:20+03:30", "utc": "2099-07-20T08:32:20Z", "ms": 4088219539864.081 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-07-21", "window": { "start": { "local": "2099-07-21T11:14:23+03:30", "utc": "2099-07-21T07:44:23Z", "ms": 4088303062502.8105 }, "end": { "local": "2099-07-21T12:02:23+03:30", "utc": "2099-07-21T08:32:23Z", "ms": 4088305942502.8105 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:52 on Mon 20 Jul to 16:57 on Tue 21 Jul.", "fact": "2099-07-20T16:21:43Z → 2099-07-21T13:27:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 20th, 11:14–12:02 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17691 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Tuesday 21 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": "2099-07-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-21", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Tuesday 21 July. Caturthī runs from 19:52 on Mon 20 Jul to 16:57 on Tue 21 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-07-21", "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/2099/ekadashi?on=2099-07-28", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 674, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-07-27T05:24:59+03:30", "utc": "2099-07-27T01:54:59Z", "ms": 4088800498633.4756 }, "end": { "local": "2099-07-28T04:47:18+03:30", "utc": "2099-07-28T01:17:18Z", "ms": 4088884637961.7915 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-07-27T05:24:59+03:30", "utc": "2099-07-27T01:54:59Z", "ms": 4088800498633.4756 }, "end": { "local": "2099-07-28T04:47:18+03:30", "utc": "2099-07-28T01:17:18Z", "ms": 4088884637961.7915 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-07-27", "window": { "start": { "local": "2099-07-27T04:35:18+03:30", "utc": "2099-07-27T01:05:18Z", "ms": 4088797517692.9116 }, "end": { "local": "2099-07-27T04:35:18+03:30", "utc": "2099-07-27T01:05:18Z", "ms": 4088797517692.9116 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-07-28", "window": { "start": { "local": "2099-07-28T04:36:04+03:30", "utc": "2099-07-28T01:06:04Z", "ms": 4088883964010.6377 }, "end": { "local": "2099-07-28T04:36:04+03:30", "utc": "2099-07-28T01:06:04Z", "ms": 4088883964010.6377 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:25 on Mon 27 Jul to 04:47 on Tue 28 Jul.", "fact": "2099-07-27T01:54:59Z → 2099-07-28T01:17:18Z" }, { "step": "kaala", "text": "Sunrise is at 04:35 on the 27th and 04:36 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 674 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Mashhad, 2099: Tuesday 28 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": "2099-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-28", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Ekādaśī 2099 falls on Tuesday 28 July. Ekādaśī runs from 05:25 on Mon 27 Jul to 04:47 on Tue 28 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-07-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-07-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-07-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30829, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-07-29T04:34:02+03:30", "utc": "2099-07-29T01:04:02Z", "ms": 4088970242170.179 }, "end": { "local": "2099-07-30T04:46:15+03:30", "utc": "2099-07-30T01:16:15Z", "ms": 4089057375185.2144 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-07-29T04:34:02+03:30", "utc": "2099-07-29T01:04:02Z", "ms": 4088970242170.179 }, "end": { "local": "2099-07-30T04:46:15+03:30", "utc": "2099-07-30T01:16:15Z", "ms": 4089057375185.2144 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-07-28", "window": { "start": { "local": "2099-07-28T18:40:45+03:30", "utc": "2099-07-28T15:10:45Z", "ms": 4088934644566.2554 }, "end": { "local": "2099-07-28T20:00:13+03:30", "utc": "2099-07-28T16:30:13Z", "ms": 4088939413369.1157 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "2099-07-29", "window": { "start": { "local": "2099-07-29T18:39:54+03:30", "utc": "2099-07-29T15:09:54Z", "ms": 4089020993632.284 }, "end": { "local": "2099-07-29T19:59:35+03:30", "utc": "2099-07-29T16:29:35Z", "ms": 4089025775468.0977 } }, "covered_min": 80, "window_min": 80, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:34 on Wed 29 Jul to 04:46 on Thu 30 Jul.", "fact": "2099-07-29T01:04:02Z → 2099-07-30T01:16:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:41–20:00 on the 28th, 18:40–20:00 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 79 minutes on the 28th and 80 of 80 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30829 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Wednesday 29 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-07-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-07-29", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Wednesday 29 July. Trayodaśī runs from 04:34 on Wed 29 Jul to 04:46 on Thu 30 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-07-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/sankashta-chaturthi?on=2099-08-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20649, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-08-04T12:25:48+03:30", "utc": "2099-08-04T08:55:48Z", "ms": 4089516947637.8896 }, "end": { "local": "2099-08-05T14:59:16+03:30", "utc": "2099-08-05T11:29:16Z", "ms": 4089612556442.7666 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-04T12:25:48+03:30", "utc": "2099-08-04T08:55:48Z", "ms": 4089516947637.8896 }, "end": { "local": "2099-08-05T14:59:16+03:30", "utc": "2099-08-05T11:29:16Z", "ms": 4089612556442.7666 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-08-04", "window": { "start": { "local": "2099-08-04T20:22:05+03:30", "utc": "2099-08-04T16:52:05Z", "ms": 4089545524785.895 }, "end": { "local": "2099-08-04T20:22:05+03:30", "utc": "2099-08-04T16:52:05Z", "ms": 4089545524785.895 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-08-05", "window": { "start": { "local": "2099-08-05T20:43:25+03:30", "utc": "2099-08-05T17:13:25Z", "ms": 4089633204994.2246 }, "end": { "local": "2099-08-05T20:43:25+03:30", "utc": "2099-08-05T17:13:25Z", "ms": 4089633204994.2246 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:26 on Tue 4 Aug to 14:59 on Wed 5 Aug.", "fact": "2099-08-04T08:55:48Z → 2099-08-05T11:29:16Z" }, { "step": "kaala", "text": "Moonrise is at 20:22 on the 4th and 20:43 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20649 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Tuesday 4 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": "2099-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-04", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Tuesday 4 August. Caturthī runs from 12:26 on Tue 4 Aug to 14:59 on Wed 5 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-08-04", "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/2099/ekadashi?on=2099-08-12", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17905, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-08-11T23:49:34+03:30", "utc": "2099-08-11T20:19:34Z", "ms": 4090162774178.813 }, "end": { "local": "2099-08-12T22:49:01+03:30", "utc": "2099-08-12T19:19:01Z", "ms": 4090245540966.511 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-11T23:49:34+03:30", "utc": "2099-08-11T20:19:34Z", "ms": 4090162774178.813 }, "end": { "local": "2099-08-12T22:49:01+03:30", "utc": "2099-08-12T19:19:01Z", "ms": 4090245540966.511 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-08-12", "window": { "start": { "local": "2099-08-12T04:47:59+03:30", "utc": "2099-08-12T01:17:59Z", "ms": 4090180679010.573 }, "end": { "local": "2099-08-12T04:47:59+03:30", "utc": "2099-08-12T01:17:59Z", "ms": 4090180679010.573 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-08-13", "window": { "start": { "local": "2099-08-13T04:48:47+03:30", "utc": "2099-08-13T01:18:47Z", "ms": 4090267127275.9194 }, "end": { "local": "2099-08-13T04:48:47+03:30", "utc": "2099-08-13T01:18:47Z", "ms": 4090267127275.9194 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:50 on Tue 11 Aug to 22:49 on Wed 12 Aug.", "fact": "2099-08-11T20:19:34Z → 2099-08-12T19:19:01Z" }, { "step": "kaala", "text": "Sunrise is at 04:48 on the 12th and 04:49 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17905 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Mashhad, 2099: Wednesday 12 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": "2099-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-12", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Ekādaśī 2099 falls on Wednesday 12 August. Ekādaśī runs from 23:50 on Tue 11 Aug to 22:49 on Wed 12 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-08-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-08-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 887, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-08-13T21:02:59+03:30", "utc": "2099-08-13T17:32:59Z", "ms": 4090325578834.2686 }, "end": { "local": "2099-08-14T18:38:07+03:30", "utc": "2099-08-14T15:08:07Z", "ms": 4090403286568.8633 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-13T21:02:59+03:30", "utc": "2099-08-13T17:32:59Z", "ms": 4090325578834.2686 }, "end": { "local": "2099-08-14T18:38:07+03:30", "utc": "2099-08-14T15:08:07Z", "ms": 4090403286568.8633 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-08-13", "window": { "start": { "local": "2099-08-13T18:24:30+03:30", "utc": "2099-08-13T14:54:30Z", "ms": 4090316070120.663 }, "end": { "local": "2099-08-13T19:47:51+03:30", "utc": "2099-08-13T16:17:51Z", "ms": 4090321070842.2456 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "2099-08-14", "window": { "start": { "local": "2099-08-14T18:23:19+03:30", "utc": "2099-08-14T14:53:19Z", "ms": 4090402399158.2812 }, "end": { "local": "2099-08-14T19:46:56+03:30", "utc": "2099-08-14T16:16:56Z", "ms": 4090407415772.5728 } }, "covered_min": 15, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:03 on Thu 13 Aug to 18:38 on Fri 14 Aug.", "fact": "2099-08-13T17:32:59Z → 2099-08-14T15:08:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:25–19:48 on the 13th, 18:23–19:47 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 83 minutes on the 13th and 15 of 84 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 887 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Friday 14 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": "2099-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-14", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Friday 14 August. Trayodaśī runs from 21:03 on Thu 13 Aug to 18:38 on Fri 14 Aug and covers 15 of 84 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-08-14", "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/2099/shivaratri?on=2099-08-14", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16485, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-08-14T18:38:07+03:30", "utc": "2099-08-14T15:08:07Z", "ms": 4090403286568.8633 }, "end": { "local": "2099-08-15T15:42:51+03:30", "utc": "2099-08-15T12:12:51Z", "ms": 4090479170892.37 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-14T18:38:07+03:30", "utc": "2099-08-14T15:08:07Z", "ms": 4090403286568.8633 }, "end": { "local": "2099-08-15T15:42:51+03:30", "utc": "2099-08-15T12:12:51Z", "ms": 4090479170892.37 } }, "kaala": "nishita", "days": [ { "local_date": "2099-08-14", "window": { "start": { "local": "2099-08-14T23:12:51+03:30", "utc": "2099-08-14T19:42:51Z", "ms": 4090419771461.875 }, "end": { "local": "2099-08-15T00:00:51+03:30", "utc": "2099-08-14T20:30:51Z", "ms": 4090422651461.875 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-08-15", "window": { "start": { "local": "2099-08-15T23:12:40+03:30", "utc": "2099-08-15T19:42:40Z", "ms": 4090506159567.0254 }, "end": { "local": "2099-08-16T00:00:40+03:30", "utc": "2099-08-15T20:30:40Z", "ms": 4090509039567.0254 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:38 on Fri 14 Aug to 15:43 on Sat 15 Aug.", "fact": "2099-08-14T15:08:07Z → 2099-08-15T12:12:51Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:13–00:01 on the 14th, 23:13–00:01 on the 15th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16485 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Friday 14 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": "2099-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-14", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Friday 14 August. Caturdaśī runs from 18:38 on Fri 14 Aug to 15:43 on Sat 15 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-08-14", "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/2099/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20517, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2099-08-18T05:29:39+03:30", "utc": "2099-08-18T01:59:39Z", "ms": 4090701579498.4224 }, "end": { "local": "2099-08-19T02:07:25+03:30", "utc": "2099-08-18T22:37:25Z", "ms": 4090775845004.583 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-18T05:29:39+03:30", "utc": "2099-08-18T01:59:39Z", "ms": 4090701579498.4224 }, "end": { "local": "2099-08-19T02:07:25+03:30", "utc": "2099-08-18T22:37:25Z", "ms": 4090775845004.583 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-08-18", "window": { "start": { "local": "2099-08-18T11:11:37+03:30", "utc": "2099-08-18T07:41:37Z", "ms": 4090722096758.3037 }, "end": { "local": "2099-08-18T11:59:37+03:30", "utc": "2099-08-18T08:29:37Z", "ms": 4090724976758.3037 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-08-19", "window": { "start": { "local": "2099-08-19T11:11:23+03:30", "utc": "2099-08-19T07:41:23Z", "ms": 4090808482845.072 }, "end": { "local": "2099-08-19T11:59:23+03:30", "utc": "2099-08-19T08:29:23Z", "ms": 4090811362845.072 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:30 on Tue 18 Aug to 02:07 on Wed 19 Aug.", "fact": "2099-08-18T01:59:39Z → 2099-08-18T22:37:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:12–12:00 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": "Tṛtīyā 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: paraviddha → only-day · margin 20517 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Mashhad, 2099: Tuesday 18 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": "2099-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-18", "confidence": "determinate" } ], "quote": "In Mashhad, Madhusravā Tṛtīyā (Hariyali Teej) 2099 falls on Tuesday 18 August. Tṛtīyā runs from 05:30 on Tue 18 Aug to 02:07 on Wed 19 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vinayaka-chaturthi?on=2099-08-19", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32638, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-08-19T02:07:25+03:30", "utc": "2099-08-18T22:37:25Z", "ms": 4090775845004.583 }, "end": { "local": "2099-08-19T23:00:23+03:30", "utc": "2099-08-19T19:30:23Z", "ms": 4090851022830.1724 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-19T02:07:25+03:30", "utc": "2099-08-18T22:37:25Z", "ms": 4090775845004.583 }, "end": { "local": "2099-08-19T23:00:23+03:30", "utc": "2099-08-19T19:30:23Z", "ms": 4090851022830.1724 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-08-19", "window": { "start": { "local": "2099-08-19T11:11:23+03:30", "utc": "2099-08-19T07:41:23Z", "ms": 4090808482845.072 }, "end": { "local": "2099-08-19T11:59:23+03:30", "utc": "2099-08-19T08:29:23Z", "ms": 4090811362845.072 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-08-20", "window": { "start": { "local": "2099-08-20T11:11:08+03:30", "utc": "2099-08-20T07:41:08Z", "ms": 4090894868439.4746 }, "end": { "local": "2099-08-20T11:59:08+03:30", "utc": "2099-08-20T08:29:08Z", "ms": 4090897748439.4746 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:07 on Wed 19 Aug to 23:00 on Wed 19 Aug.", "fact": "2099-08-18T22:37:25Z → 2099-08-19T19:30:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 19th, 11:11–11:59 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32638 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Wednesday 19 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": "2099-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-19", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Wednesday 19 August. Caturthī runs from 02:07 on Wed 19 Aug to 23:00 on Wed 19 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-08-19", "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/2099/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29781, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2099-08-19T23:00:23+03:30", "utc": "2099-08-19T19:30:23Z", "ms": 4090851022830.1724 }, "end": { "local": "2099-08-20T20:15:30+03:30", "utc": "2099-08-20T16:45:30Z", "ms": 4090927529859.816 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-19T23:00:23+03:30", "utc": "2099-08-19T19:30:23Z", "ms": 4090851022830.1724 }, "end": { "local": "2099-08-20T20:15:30+03:30", "utc": "2099-08-20T16:45:30Z", "ms": 4090927529859.816 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-08-19", "window": { "start": { "local": "2099-08-19T11:11:23+03:30", "utc": "2099-08-19T07:41:23Z", "ms": 4090808482845.072 }, "end": { "local": "2099-08-19T11:59:23+03:30", "utc": "2099-08-19T08:29:23Z", "ms": 4090811362845.072 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-08-20", "window": { "start": { "local": "2099-08-20T11:11:08+03:30", "utc": "2099-08-20T07:41:08Z", "ms": 4090894868439.4746 }, "end": { "local": "2099-08-20T11:59:08+03:30", "utc": "2099-08-20T08:29:08Z", "ms": 4090897748439.4746 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 23:00 on Wed 19 Aug to 20:15 on Thu 20 Aug.", "fact": "2099-08-19T19:30:23Z → 2099-08-20T16:45:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 19th, 11:11–11:59 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29781 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Mashhad, 2099: Thursday 20 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": "2099-08-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-20", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Pañcamī 2099 falls on Thursday 20 August. Pañcamī runs from 23:00 on Wed 19 Aug to 20:15 on Thu 20 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-08-26", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33921, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-08-25T14:23:43+03:30", "utc": "2099-08-25T10:53:43Z", "ms": 4091338422683.887 }, "end": { "local": "2099-08-26T14:54:32+03:30", "utc": "2099-08-26T11:24:32Z", "ms": 4091426672294.8237 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-25T14:23:43+03:30", "utc": "2099-08-25T10:53:43Z", "ms": 4091338422683.887 }, "end": { "local": "2099-08-26T14:54:32+03:30", "utc": "2099-08-26T11:24:32Z", "ms": 4091426672294.8237 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-08-25", "window": { "start": { "local": "2099-08-25T04:58:22+03:30", "utc": "2099-08-25T01:28:22Z", "ms": 4091304502037.5474 }, "end": { "local": "2099-08-25T04:58:22+03:30", "utc": "2099-08-25T01:28:22Z", "ms": 4091304502037.5474 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-08-26", "window": { "start": { "local": "2099-08-26T04:59:09+03:30", "utc": "2099-08-26T01:29:09Z", "ms": 4091390949302.6655 }, "end": { "local": "2099-08-26T04:59:09+03:30", "utc": "2099-08-26T01:29:09Z", "ms": 4091390949302.6655 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:24 on Tue 25 Aug to 14:55 on Wed 26 Aug.", "fact": "2099-08-25T10:53:43Z → 2099-08-26T11:24:32Z" }, { "step": "kaala", "text": "Sunrise is at 04:58 on the 25th and 04:59 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 25th and is on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33921 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Mashhad, 2099: Wednesday 26 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-26", "confidence": "determinate" } ], "quote": "In Mashhad, Putradā Ekādaśī 2099 falls on Wednesday 26 August. Ekādaśī runs from 14:24 on Tue 25 Aug to 14:55 on Wed 26 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-08-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10620, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2099-08-26T14:54:32+03:30", "utc": "2099-08-26T11:24:32Z", "ms": 4091426672294.8237 }, "end": { "local": "2099-08-27T15:55:34+03:30", "utc": "2099-08-27T12:25:34Z", "ms": 4091516734413.901 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-26T14:54:32+03:30", "utc": "2099-08-26T11:24:32Z", "ms": 4091426672294.8237 }, "end": { "local": "2099-08-27T15:55:34+03:30", "utc": "2099-08-27T12:25:34Z", "ms": 4091516734413.901 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-08-26", "window": { "start": { "local": "2099-08-26T11:09:32+03:30", "utc": "2099-08-26T07:39:32Z", "ms": 4091413172316.715 }, "end": { "local": "2099-08-26T11:57:32+03:30", "utc": "2099-08-26T08:27:32Z", "ms": 4091416052316.715 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-08-27", "window": { "start": { "local": "2099-08-27T11:09:15+03:30", "utc": "2099-08-27T07:39:15Z", "ms": 4091499554816.9893 }, "end": { "local": "2099-08-27T11:57:15+03:30", "utc": "2099-08-27T08:27:15Z", "ms": 4091502434816.9893 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:55 on Wed 26 Aug to 15:56 on Thu 27 Aug.", "fact": "2099-08-26T11:24:32Z → 2099-08-27T12:25:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:10–11:58 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": "Dvādaśī 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: purvaviddha → only-day · margin 10620 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Mashhad, 2099: Thursday 27 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": "2099-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-27", "confidence": "determinate" } ], "quote": "In Mashhad, Dāmodara Dvādaśī 2099 falls on Thursday 27 August. Dvādaśī runs from 14:55 on Wed 26 Aug to 15:56 on Thu 27 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pradosha-vrata?on=2099-08-27", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2480, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-08-27T15:55:34+03:30", "utc": "2099-08-27T12:25:34Z", "ms": 4091516734413.901 }, "end": { "local": "2099-08-28T17:23:50+03:30", "utc": "2099-08-28T13:53:50Z", "ms": 4091608430335.8486 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-27T15:55:34+03:30", "utc": "2099-08-27T12:25:34Z", "ms": 4091516734413.901 }, "end": { "local": "2099-08-28T17:23:50+03:30", "utc": "2099-08-28T13:53:50Z", "ms": 4091608430335.8486 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-08-27", "window": { "start": { "local": "2099-08-27T18:06:33+03:30", "utc": "2099-08-27T14:36:33Z", "ms": 4091524593171.5435 }, "end": { "local": "2099-08-27T19:33:47+03:30", "utc": "2099-08-27T16:03:47Z", "ms": 4091529826551.557 } }, "covered_min": 87, "window_min": 87, "qualifies": true }, { "local_date": "2099-08-28", "window": { "start": { "local": "2099-08-28T18:05:10+03:30", "utc": "2099-08-28T14:35:10Z", "ms": 4091610910356.7373 }, "end": { "local": "2099-08-28T19:32:41+03:30", "utc": "2099-08-28T16:02:41Z", "ms": 4091616161040.6836 } }, "covered_min": 0, "window_min": 88, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:56 on Thu 27 Aug to 17:24 on Fri 28 Aug.", "fact": "2099-08-27T12:25:34Z → 2099-08-28T13:53:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:34 on the 27th, 18:05–19:33 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 87 of 87 minutes on the 27th and 0 of 88 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2480 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Thursday 27 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-27", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Thursday 27 August. Trayodaśī runs from 15:56 on Thu 27 Aug to 17:24 on Fri 28 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-08-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11843, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-08-29T19:15:55+03:30", "utc": "2099-08-29T15:45:55Z", "ms": 4091701555316.2314 }, "end": { "local": "2099-08-30T21:27:50+03:30", "utc": "2099-08-30T17:57:50Z", "ms": 4091795870283.934 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2099-08-30T08:19:41+03:30", "utc": "2099-08-30T04:49:41Z", "ms": 4091748580807.486 }, "end": { "local": "2099-08-30T21:27:50+03:30", "utc": "2099-08-30T17:57:50Z", "ms": 4091795870283.934 } }, "kaala": "day", "days": [ { "local_date": "2099-08-29", "window": { "start": { "local": "2099-08-29T05:01:30+03:30", "utc": "2099-08-29T01:31:30Z", "ms": 4091650290486.3335 }, "end": { "local": "2099-08-30T05:02:17+03:30", "utc": "2099-08-30T01:32:17Z", "ms": 4091736737363.618 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "2099-08-30", "window": { "start": { "local": "2099-08-30T05:02:17+03:30", "utc": "2099-08-30T01:32:17Z", "ms": 4091736737363.618 }, "end": { "local": "2099-08-31T05:03:04+03:30", "utc": "2099-08-31T01:33:04Z", "ms": 4091823184161.504 } }, "covered_min": 788, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:16 on Sat 29 Aug to 21:28 on Sun 30 Aug. Its second half begins at 08:20 on Sun 30 Aug.", "fact": "2099-08-29T15:45:55Z → 2099-08-30T17:57:50Z · second half from 2099-08-30T04:49:41Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:02 on the 29th, and from 05:02 on the 30th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The second half of Pūrṇimā must be present during the day. It covers 0 of 1441 minutes on the 29th and 788 of 1441 on the 30th.", "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 11843 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Mashhad, 2099: Sunday 30 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": "2099-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-30", "confidence": "determinate" } ], "quote": "In Mashhad, Rakṣā Bandhana (Rakhi) 2099 falls on Sunday 30 August. The second half of Pūrṇimā runs from 08:20 on Sun 30 Aug to 21:28 on Sun 30 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26357, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-08-29T19:15:55+03:30", "utc": "2099-08-29T15:45:55Z", "ms": 4091701555316.2314 }, "end": { "local": "2099-08-30T21:27:50+03:30", "utc": "2099-08-30T17:57:50Z", "ms": 4091795870283.934 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2099-08-29T19:15:55+03:30", "utc": "2099-08-29T15:45:55Z", "ms": 4091701555316.2314 }, "end": { "local": "2099-08-30T21:27:50+03:30", "utc": "2099-08-30T17:57:50Z", "ms": 4091795870283.934 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-08-29", "window": { "start": { "local": "2099-08-29T11:08:39+03:30", "utc": "2099-08-29T07:38:39Z", "ms": 4091672318701.5986 }, "end": { "local": "2099-08-29T11:56:39+03:30", "utc": "2099-08-29T08:26:39Z", "ms": 4091675198701.5986 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-08-30", "window": { "start": { "local": "2099-08-30T11:08:20+03:30", "utc": "2099-08-30T07:38:20Z", "ms": 4091758700122.973 }, "end": { "local": "2099-08-30T11:56:20+03:30", "utc": "2099-08-30T08:26:20Z", "ms": 4091761580122.973 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:16 on Sat 29 Aug to 21:28 on Sun 30 Aug.", "fact": "2099-08-29T15:45:55Z → 2099-08-30T17:57:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 29th, 11:08–11:56 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26357 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Mashhad, 2099: Sunday 30 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": "2099-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-08-30", "confidence": "determinate" } ], "quote": "In Mashhad, Ṛṣi Tarpaṇa 2099 falls on Sunday 30 August. Pūrṇimā runs from 19:16 on Sat 29 Aug to 21:28 on Sun 30 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19675, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2099-08-31T23:54:43+03:30", "utc": "2099-08-31T20:24:43Z", "ms": 4091891082735.1885 }, "end": { "local": "2099-09-02T02:30:24+03:30", "utc": "2099-09-01T23:00:24Z", "ms": 4091986823788.466 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-08-31T23:54:43+03:30", "utc": "2099-08-31T20:24:43Z", "ms": 4091891082735.1885 }, "end": { "local": "2099-09-02T02:30:24+03:30", "utc": "2099-09-01T23:00:24Z", "ms": 4091986823788.466 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-08-31", "window": { "start": { "local": "2099-08-31T18:26:48+03:30", "utc": "2099-08-31T14:56:48Z", "ms": 4091871408046.2173 }, "end": { "local": "2099-08-31T18:26:48+03:30", "utc": "2099-08-31T14:56:48Z", "ms": 4091871408046.2173 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-09-01", "window": { "start": { "local": "2099-09-01T18:48:10+03:30", "utc": "2099-09-01T15:18:10Z", "ms": 4091959090014.34 }, "end": { "local": "2099-09-01T18:48:10+03:30", "utc": "2099-09-01T15:18:10Z", "ms": 4091959090014.34 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 23:55 on Mon 31 Aug to 02:30 on Wed 2 Sep.", "fact": "2099-08-31T20:24:43Z → 2099-09-01T23:00:24Z" }, { "step": "kaala", "text": "Moonrise is at 18:27 on the 31st and 18:48 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 31st and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19675 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Mashhad, 2099: Tuesday 1 September.", "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": "2099-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-01", "confidence": "determinate" } ], "quote": "In Mashhad, Aśūnya Śayana Vrata 2099 falls on Tuesday 1 September. Dvitīyā runs from 23:55 on Mon 31 Aug to 02:30 on Wed 2 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21591, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2099-09-02T02:30:24+03:30", "utc": "2099-09-01T23:00:24Z", "ms": 4091986823788.466 }, "end": { "local": "2099-09-03T05:07:12+03:30", "utc": "2099-09-03T01:37:12Z", "ms": 4092082632187.9727 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-02T02:30:24+03:30", "utc": "2099-09-01T23:00:24Z", "ms": 4091986823788.466 }, "end": { "local": "2099-09-03T05:07:12+03:30", "utc": "2099-09-03T01:37:12Z", "ms": 4092082632187.9727 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-02", "window": { "start": { "local": "2099-09-02T11:07:23+03:30", "utc": "2099-09-02T07:37:23Z", "ms": 4092017842533.741 }, "end": { "local": "2099-09-02T11:55:23+03:30", "utc": "2099-09-02T08:25:23Z", "ms": 4092020722533.741 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-03", "window": { "start": { "local": "2099-09-03T11:07:03+03:30", "utc": "2099-09-03T07:37:03Z", "ms": 4092104222784.966 }, "end": { "local": "2099-09-03T11:55:03+03:30", "utc": "2099-09-03T08:25:03Z", "ms": 4092107102784.966 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:30 on Wed 2 Sep to 05:07 on Thu 3 Sep.", "fact": "2099-09-01T23:00:24Z → 2099-09-03T01:37:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 2nd, 11:07–11:55 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 0 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21591 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Mashhad, 2099: Wednesday 2 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kajjali-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 3 Kajjali trtiya, (paraviddha), Angaveta trtiya (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-02", "confidence": "determinate" } ], "quote": "In Mashhad, Kajjalī Tṛtīyā (Kajari Teej) 2099 falls on Wednesday 2 September. Tṛtīyā runs from 02:30 on Wed 2 Sep to 05:07 on Thu 3 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27929, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-09-03T05:07:12+03:30", "utc": "2099-09-03T01:37:12Z", "ms": 4092082632187.9727 }, "end": { "local": "2099-09-04T07:35:57+03:30", "utc": "2099-09-04T04:05:57Z", "ms": 4092177957260.3345 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-03T05:07:12+03:30", "utc": "2099-09-03T01:37:12Z", "ms": 4092082632187.9727 }, "end": { "local": "2099-09-04T07:35:57+03:30", "utc": "2099-09-04T04:05:57Z", "ms": 4092177957260.3345 } }, "kaala": "sayahna", "days": [ { "local_date": "2099-09-03", "window": { "start": { "local": "2099-09-03T15:22:26+03:30", "utc": "2099-09-03T11:52:26Z", "ms": 4092119545954.938 }, "end": { "local": "2099-09-03T17:56:41+03:30", "utc": "2099-09-03T14:26:41Z", "ms": 4092128801401.586 } }, "covered_min": 154, "window_min": 154, "qualifies": true }, { "local_date": "2099-09-04", "window": { "start": { "local": "2099-09-04T15:21:26+03:30", "utc": "2099-09-04T11:51:26Z", "ms": 4092205886024.66 }, "end": { "local": "2099-09-04T17:55:15+03:30", "utc": "2099-09-04T14:25:15Z", "ms": 4092215114845.7515 } }, "covered_min": 0, "window_min": 154, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:07 on Thu 3 Sep to 07:36 on Fri 4 Sep.", "fact": "2099-09-03T01:37:12Z → 2099-09-04T04:05:57Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:22–17:57 on the 3rd, 15:21–17:55 on the 4th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 154 of 154 minutes on the 3rd and 0 of 154 on the 4th.", "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 27929 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Mashhad, 2099: Thursday 3 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bahula-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)." } ], "kaala": "sayahna", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-03", "confidence": "determinate" } ], "quote": "In Mashhad, Bahulā Caturthī 2099 falls on Thursday 3 September. Caturthī runs from 05:07 on Thu 3 Sep to 07:36 on Fri 4 Sep and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-09-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35858, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-09-03T05:07:12+03:30", "utc": "2099-09-03T01:37:12Z", "ms": 4092082632187.9727 }, "end": { "local": "2099-09-04T07:35:57+03:30", "utc": "2099-09-04T04:05:57Z", "ms": 4092177957260.3345 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-03T05:07:12+03:30", "utc": "2099-09-03T01:37:12Z", "ms": 4092082632187.9727 }, "end": { "local": "2099-09-04T07:35:57+03:30", "utc": "2099-09-04T04:05:57Z", "ms": 4092177957260.3345 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-09-02", "window": { "start": { "local": "2099-09-02T19:09:34+03:30", "utc": "2099-09-02T15:39:34Z", "ms": 4092046774193.089 }, "end": { "local": "2099-09-02T19:09:34+03:30", "utc": "2099-09-02T15:39:34Z", "ms": 4092046774193.089 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-09-03", "window": { "start": { "local": "2099-09-03T19:32:08+03:30", "utc": "2099-09-03T16:02:08Z", "ms": 4092134527999.8027 }, "end": { "local": "2099-09-03T19:32:08+03:30", "utc": "2099-09-03T16:02:08Z", "ms": 4092134527999.8027 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:07 on Thu 3 Sep to 07:36 on Fri 4 Sep.", "fact": "2099-09-03T01:37:12Z → 2099-09-04T04:05:57Z" }, { "step": "kaala", "text": "Moonrise is at 19:10 on the 2nd and 19:32 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 2nd and is on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35858 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Thursday 3 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": "2099-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-03", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Thursday 3 September. Caturthī runs from 05:07 on Thu 3 Sep to 07:36 on Fri 4 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-09-03", "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/2099/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1357, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2099-09-05T09:46:30+03:30", "utc": "2099-09-05T06:16:30Z", "ms": 4092272189504.1733 }, "end": { "local": "2099-09-06T11:28:39+03:30", "utc": "2099-09-06T07:58:39Z", "ms": 4092364718760.337 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-05T09:46:30+03:30", "utc": "2099-09-05T06:16:30Z", "ms": 4092272189504.1733 }, "end": { "local": "2099-09-06T11:28:39+03:30", "utc": "2099-09-06T07:58:39Z", "ms": 4092364718760.337 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-05", "window": { "start": { "local": "2099-09-05T11:06:23+03:30", "utc": "2099-09-05T07:36:23Z", "ms": 4092276982577.7764 }, "end": { "local": "2099-09-05T11:54:23+03:30", "utc": "2099-09-05T08:24:23Z", "ms": 4092279862577.7764 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-06", "window": { "start": { "local": "2099-09-06T11:06:02+03:30", "utc": "2099-09-06T07:36:02Z", "ms": 4092363362159.0386 }, "end": { "local": "2099-09-06T11:54:02+03:30", "utc": "2099-09-06T08:24:02Z", "ms": 4092366242159.0386 } }, "covered_min": 23, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:46 on Sat 5 Sep to 11:29 on Sun 6 Sep.", "fact": "2099-09-05T06:16:30Z → 2099-09-06T07:58:39Z" }, { "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": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 23 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1357 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Mashhad, 2099: Sunday 6 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-06", "confidence": "determinate" } ], "quote": "In Mashhad, Hala Ṣaṣṭhī 2099 falls on Sunday 6 September. Ṣaṣṭhī runs from 09:46 on Sat 5 Sep to 11:29 on Sun 6 Sep and covers 23 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1357, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2099-09-06T11:28:39+03:30", "utc": "2099-09-06T07:58:39Z", "ms": 4092364718760.337 }, "end": { "local": "2099-09-07T12:33:28+03:30", "utc": "2099-09-07T09:03:28Z", "ms": 4092455008295.673 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-06T11:28:39+03:30", "utc": "2099-09-06T07:58:39Z", "ms": 4092364718760.337 }, "end": { "local": "2099-09-07T12:33:28+03:30", "utc": "2099-09-07T09:03:28Z", "ms": 4092455008295.673 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-06", "window": { "start": { "local": "2099-09-06T11:06:02+03:30", "utc": "2099-09-06T07:36:02Z", "ms": 4092363362159.0386 }, "end": { "local": "2099-09-06T11:54:02+03:30", "utc": "2099-09-06T08:24:02Z", "ms": 4092366242159.0386 } }, "covered_min": 25, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-07", "window": { "start": { "local": "2099-09-07T11:05:42+03:30", "utc": "2099-09-07T07:35:42Z", "ms": 4092449741556.497 }, "end": { "local": "2099-09-07T11:53:42+03:30", "utc": "2099-09-07T08:23:42Z", "ms": 4092452621556.497 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 11:29 on Sun 6 Sep to 12:33 on Mon 7 Sep.", "fact": "2099-09-06T07:58:39Z → 2099-09-07T09:03:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 6th, 11:06–11:54 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 25 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1357 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Mashhad, 2099: Sunday 6 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitala-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 7 Sitala saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-06", "confidence": "determinate" } ], "quote": "In Mashhad, Śītalā Saptamī 2099 falls on Sunday 6 September. Saptamī runs from 11:29 on Sun 6 Sep to 12:33 on Mon 7 Sep and covers 25 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36679, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-09-07T12:33:28+03:30", "utc": "2099-09-07T09:03:28Z", "ms": 4092455008295.673 }, "end": { "local": "2099-09-08T12:54:25+03:30", "utc": "2099-09-08T09:24:25Z", "ms": 4092542664808.7593 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-07T12:33:28+03:30", "utc": "2099-09-07T09:03:28Z", "ms": 4092455008295.673 }, "end": { "local": "2099-09-08T12:54:25+03:30", "utc": "2099-09-08T09:24:25Z", "ms": 4092542664808.7593 } }, "kaala": "nishita", "days": [ { "local_date": "2099-09-07", "window": { "start": { "local": "2099-09-07T23:06:05+03:30", "utc": "2099-09-07T19:36:05Z", "ms": 4092492964808.358 }, "end": { "local": "2099-09-07T23:54:05+03:30", "utc": "2099-09-07T20:24:05Z", "ms": 4092495844808.358 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-08", "window": { "start": { "local": "2099-09-08T23:05:44+03:30", "utc": "2099-09-08T19:35:44Z", "ms": 4092579344044.955 }, "end": { "local": "2099-09-08T23:53:44+03:30", "utc": "2099-09-08T20:23:44Z", "ms": 4092582224044.955 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:33 on Mon 7 Sep to 12:54 on Tue 8 Sep.", "fact": "2099-09-07T09:03:28Z → 2099-09-08T09:24:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:06–23:54 on the 7th, 23:06–23:54 on the 8th.", "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 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 night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36679 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Mashhad, 2099: Monday 7 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "janmashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami." } ], "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.", "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-07", "confidence": "determinate" } ], "quote": "In Mashhad, Janmāṣṭamī 2099 falls on Monday 7 September. Aṣṭamī runs from 12:33 on Mon 7 Sep to 12:54 on Tue 8 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-09-11", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14711, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-09-10T11:14:30+03:30", "utc": "2099-09-10T07:44:30Z", "ms": 4092709469802.061 }, "end": { "local": "2099-09-11T09:16:47+03:30", "utc": "2099-09-11T05:46:47Z", "ms": 4092788807339.2905 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-10T11:14:30+03:30", "utc": "2099-09-10T07:44:30Z", "ms": 4092709469802.061 }, "end": { "local": "2099-09-11T09:16:47+03:30", "utc": "2099-09-11T05:46:47Z", "ms": 4092788807339.2905 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-09-10", "window": { "start": { "local": "2099-09-10T05:10:50+03:30", "utc": "2099-09-10T01:40:50Z", "ms": 4092687649845.004 }, "end": { "local": "2099-09-10T05:10:50+03:30", "utc": "2099-09-10T01:40:50Z", "ms": 4092687649845.004 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-09-11", "window": { "start": { "local": "2099-09-11T05:11:36+03:30", "utc": "2099-09-11T01:41:36Z", "ms": 4092774096394.5527 }, "end": { "local": "2099-09-11T05:11:36+03:30", "utc": "2099-09-11T01:41:36Z", "ms": 4092774096394.5527 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:14 on Thu 10 Sep to 09:17 on Fri 11 Sep.", "fact": "2099-09-10T07:44:30Z → 2099-09-11T05:46:47Z" }, { "step": "kaala", "text": "Sunrise is at 05:11 on the 10th and 05:12 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14711 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Mashhad, 2099: Friday 11 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": "2099-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-11", "confidence": "determinate" } ], "quote": "In Mashhad, Ajā Ekādaśī 2099 falls on Friday 11 September. Ekādaśī runs from 11:14 on Thu 10 Sep to 09:17 on Fri 11 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-09-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-09-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29890, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-09-12T06:40:39+03:30", "utc": "2099-09-12T03:10:39Z", "ms": 4092865838930.0225 }, "end": { "local": "2099-09-13T03:33:38+03:30", "utc": "2099-09-13T00:03:38Z", "ms": 4092941017527.961 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-12T06:40:39+03:30", "utc": "2099-09-12T03:10:39Z", "ms": 4092865838930.0225 }, "end": { "local": "2099-09-13T03:33:38+03:30", "utc": "2099-09-13T00:03:38Z", "ms": 4092941017527.961 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-09-11", "window": { "start": { "local": "2099-09-11T17:44:59+03:30", "utc": "2099-09-11T14:14:59Z", "ms": 4092819298989.296 }, "end": { "local": "2099-09-11T19:16:38+03:30", "utc": "2099-09-11T15:46:38Z", "ms": 4092824798187.292 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "2099-09-12", "window": { "start": { "local": "2099-09-12T17:43:30+03:30", "utc": "2099-09-12T14:13:30Z", "ms": 4092905609932.6084 }, "end": { "local": "2099-09-12T19:15:27+03:30", "utc": "2099-09-12T15:45:27Z", "ms": 4092911127220.2573 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:41 on Sat 12 Sep to 03:34 on Sun 13 Sep.", "fact": "2099-09-12T03:10:39Z → 2099-09-13T00:03:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:45–19:17 on the 11th, 17:43–19:15 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 92 minutes on the 11th and 92 of 92 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29890 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Saturday 12 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": "2099-09-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-12", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Saturday 12 September. Trayodaśī runs from 06:41 on Sat 12 Sep to 03:34 on Sun 13 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-09-12", "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/2099/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17413, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-09-13T03:33:38+03:30", "utc": "2099-09-13T00:03:38Z", "ms": 4092941017527.961 }, "end": { "local": "2099-09-14T00:04:30+03:30", "utc": "2099-09-13T20:34:30Z", "ms": 4093014869544.2905 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-13T03:33:38+03:30", "utc": "2099-09-13T00:03:38Z", "ms": 4092941017527.961 }, "end": { "local": "2099-09-14T00:04:30+03:30", "utc": "2099-09-13T20:34:30Z", "ms": 4093014869544.2905 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-09-12", "window": { "start": { "local": "2099-09-12T17:43:30+03:30", "utc": "2099-09-12T14:13:30Z", "ms": 4092905609932.6084 }, "end": { "local": "2099-09-12T19:15:27+03:30", "utc": "2099-09-12T15:45:27Z", "ms": 4092911127220.2573 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "2099-09-13", "window": { "start": { "local": "2099-09-13T17:42:01+03:30", "utc": "2099-09-13T14:12:01Z", "ms": 4092991920689.662 }, "end": { "local": "2099-09-13T19:14:16+03:30", "utc": "2099-09-13T15:44:16Z", "ms": 4092997456097.263 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:34 on Sun 13 Sep to 00:04 on Mon 14 Sep.", "fact": "2099-09-13T00:03:38Z → 2099-09-13T20:34:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:43–19:15 on the 12th, 17:42–19:14 on the 13th.", "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 92 minutes on the 12th and 92 of 92 on the 13th.", "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 17413 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Mashhad, 2099: Sunday 13 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": "2099-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-13", "confidence": "determinate" } ], "quote": "In Mashhad, Aghora Caturdaśī 2099 falls on Sunday 13 September. Caturdaśī runs from 03:34 on Sun 13 Sep to 00:04 on Mon 14 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/shivaratri?on=2099-09-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 751, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-09-13T03:33:38+03:30", "utc": "2099-09-13T00:03:38Z", "ms": 4092941017527.961 }, "end": { "local": "2099-09-14T00:04:30+03:30", "utc": "2099-09-13T20:34:30Z", "ms": 4093014869544.2905 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-13T03:33:38+03:30", "utc": "2099-09-13T00:03:38Z", "ms": 4092941017527.961 }, "end": { "local": "2099-09-14T00:04:30+03:30", "utc": "2099-09-13T20:34:30Z", "ms": 4093014869544.2905 } }, "kaala": "nishita", "days": [ { "local_date": "2099-09-12", "window": { "start": { "local": "2099-09-12T23:04:20+03:30", "utc": "2099-09-12T19:34:20Z", "ms": 4092924859761.291 }, "end": { "local": "2099-09-12T23:52:20+03:30", "utc": "2099-09-12T20:22:20Z", "ms": 4092927739761.291 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-09-13", "window": { "start": { "local": "2099-09-13T23:03:58+03:30", "utc": "2099-09-13T19:33:58Z", "ms": 4093011238468.166 }, "end": { "local": "2099-09-13T23:51:58+03:30", "utc": "2099-09-13T20:21:58Z", "ms": 4093014118468.166 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:34 on Sun 13 Sep to 00:04 on Mon 14 Sep.", "fact": "2099-09-13T00:03:38Z → 2099-09-13T20:34:30Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:04–23:52 on the 12th, 23:04–23:52 on the 13th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 751 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Sunday 13 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": "2099-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-13", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Sunday 13 September. Caturdaśī runs from 03:34 on Sun 13 Sep to 00:04 on Mon 14 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-09-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17234, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2099-09-14T20:22:44+03:30", "utc": "2099-09-14T16:52:44Z", "ms": 4093087963569.926 }, "end": { "local": "2099-09-15T16:38:06+03:30", "utc": "2099-09-15T13:08:06Z", "ms": 4093160886207.7607 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-14T20:22:44+03:30", "utc": "2099-09-14T16:52:44Z", "ms": 4093087963569.926 }, "end": { "local": "2099-09-15T16:38:06+03:30", "utc": "2099-09-15T13:08:06Z", "ms": 4093160886207.7607 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-14", "window": { "start": { "local": "2099-09-14T11:03:14+03:30", "utc": "2099-09-14T07:33:14Z", "ms": 4093054393766.4546 }, "end": { "local": "2099-09-14T11:51:14+03:30", "utc": "2099-09-14T08:21:14Z", "ms": 4093057273766.4546 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-09-15", "window": { "start": { "local": "2099-09-15T11:02:52+03:30", "utc": "2099-09-15T07:32:52Z", "ms": 4093140772348.5186 }, "end": { "local": "2099-09-15T11:50:52+03:30", "utc": "2099-09-15T08:20:52Z", "ms": 4093143652348.5186 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 20:23 on Mon 14 Sep to 16:38 on Tue 15 Sep.", "fact": "2099-09-14T16:52:44Z → 2099-09-15T13:08:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:03–11:51 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": "Pratipadā 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17234 s" }, { "step": "ruling", "text": "Rudra Vrata, Mashhad, 2099: Tuesday 15 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": "2099-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-15", "confidence": "determinate" } ], "quote": "In Mashhad, Rudra Vrata 2099 falls on Tuesday 15 September. Pratipadā runs from 20:23 on Mon 14 Sep to 16:38 on Tue 15 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4990, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-09-17T09:38:59+03:30", "utc": "2099-09-17T06:08:59Z", "ms": 4093308539009.8486 }, "end": { "local": "2099-09-18T06:42:42+03:30", "utc": "2099-09-18T03:12:42Z", "ms": 4093384362023.1416 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-17T09:38:59+03:30", "utc": "2099-09-17T06:08:59Z", "ms": 4093308539009.8486 }, "end": { "local": "2099-09-18T06:42:42+03:30", "utc": "2099-09-18T03:12:42Z", "ms": 4093384362023.1416 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-17", "window": { "start": { "local": "2099-09-17T11:02:09+03:30", "utc": "2099-09-17T07:32:09Z", "ms": 4093313529437.412 }, "end": { "local": "2099-09-17T11:50:09+03:30", "utc": "2099-09-17T08:20:09Z", "ms": 4093316409437.412 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-18", "window": { "start": { "local": "2099-09-18T11:01:48+03:30", "utc": "2099-09-18T07:31:48Z", "ms": 4093399907976.2793 }, "end": { "local": "2099-09-18T11:49:48+03:30", "utc": "2099-09-18T08:19:48Z", "ms": 4093402787976.2793 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:39 on Thu 17 Sep to 06:43 on Fri 18 Sep.", "fact": "2099-09-17T06:08:59Z → 2099-09-18T03:12:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:02–11:50 on the 17th, 11:02–11:50 on the 18th.", "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 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4990 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Mashhad, 2099: Thursday 17 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-17", "confidence": "determinate" } ], "quote": "In Mashhad, Gaṇeśa Caturthī 2099 falls on Thursday 17 September. Caturthī runs from 09:39 on Thu 17 Sep to 06:43 on Fri 18 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4192, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2099-09-16T13:00:23+03:30", "utc": "2099-09-16T09:30:23Z", "ms": 4093234222700.3945 }, "end": { "local": "2099-09-17T09:38:59+03:30", "utc": "2099-09-17T06:08:59Z", "ms": 4093308539009.8486 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-16T13:00:23+03:30", "utc": "2099-09-16T09:30:23Z", "ms": 4093234222700.3945 }, "end": { "local": "2099-09-17T09:38:59+03:30", "utc": "2099-09-17T06:08:59Z", "ms": 4093308539009.8486 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-16", "window": { "start": { "local": "2099-09-16T11:02:31+03:30", "utc": "2099-09-16T07:32:31Z", "ms": 4093227150900.1387 }, "end": { "local": "2099-09-16T11:50:31+03:30", "utc": "2099-09-16T08:20:31Z", "ms": 4093230030900.1387 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-09-17", "window": { "start": { "local": "2099-09-17T11:02:09+03:30", "utc": "2099-09-17T07:32:09Z", "ms": 4093313529437.412 }, "end": { "local": "2099-09-17T11:50:09+03:30", "utc": "2099-09-17T08:20:09Z", "ms": 4093316409437.412 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:00 on Wed 16 Sep to 09:39 on Thu 17 Sep.", "fact": "2099-09-16T09:30:23Z → 2099-09-17T06:08:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:03–11:51 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": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 4192 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Mashhad, 2099: Thursday 17 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": "2099-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-17", "confidence": "determinate" } ], "quote": "In Mashhad, Haritālikā Vrata (Hartalika Teej) 2099 falls on Thursday 17 September. Tṛtīyā runs from 13:00 on Wed 16 Sep to 09:39 on Thu 17 Sep, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15546, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2099-09-18T06:42:42+03:30", "utc": "2099-09-18T03:12:42Z", "ms": 4093384362023.1416 }, "end": { "local": "2099-09-19T04:19:15+03:30", "utc": "2099-09-19T00:49:15Z", "ms": 4093462155477.913 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-18T06:42:42+03:30", "utc": "2099-09-18T03:12:42Z", "ms": 4093384362023.1416 }, "end": { "local": "2099-09-19T04:19:15+03:30", "utc": "2099-09-19T00:49:15Z", "ms": 4093462155477.913 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-18", "window": { "start": { "local": "2099-09-18T11:01:48+03:30", "utc": "2099-09-18T07:31:48Z", "ms": 4093399907976.2793 }, "end": { "local": "2099-09-18T11:49:48+03:30", "utc": "2099-09-18T08:19:48Z", "ms": 4093402787976.2793 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-19", "window": { "start": { "local": "2099-09-19T11:01:27+03:30", "utc": "2099-09-19T07:31:27Z", "ms": 4093486286533.994 }, "end": { "local": "2099-09-19T11:49:27+03:30", "utc": "2099-09-19T08:19:27Z", "ms": 4093489166533.994 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 06:43 on Fri 18 Sep to 04:19 on Sat 19 Sep.", "fact": "2099-09-18T03:12:42Z → 2099-09-19T00:49:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:02–11:50 on the 18th, 11:01–11:49 on the 19th.", "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 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: disputed → only-day · margin 15546 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Mashhad, 2099: Friday 18 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rishi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day" } ], "kaala": "madhyahna", "priority": "disputed", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-18", "confidence": "determinate" } ], "quote": "In Mashhad, Ṛṣi Pañcamī 2099 falls on Friday 18 September. Pañcamī runs from 06:43 on Fri 18 Sep to 04:19 on Sat 19 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24131, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2099-09-19T04:19:15+03:30", "utc": "2099-09-19T00:49:15Z", "ms": 4093462155477.913 }, "end": { "local": "2099-09-20T02:34:51+03:30", "utc": "2099-09-19T23:04:51Z", "ms": 4093542291107.9155 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-19T04:19:15+03:30", "utc": "2099-09-19T00:49:15Z", "ms": 4093462155477.913 }, "end": { "local": "2099-09-20T02:34:51+03:30", "utc": "2099-09-19T23:04:51Z", "ms": 4093542291107.9155 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-19", "window": { "start": { "local": "2099-09-19T11:01:27+03:30", "utc": "2099-09-19T07:31:27Z", "ms": 4093486286533.994 }, "end": { "local": "2099-09-19T11:49:27+03:30", "utc": "2099-09-19T08:19:27Z", "ms": 4093489166533.994 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-20", "window": { "start": { "local": "2099-09-20T11:01:05+03:30", "utc": "2099-09-20T07:31:05Z", "ms": 4093572665128.918 }, "end": { "local": "2099-09-20T11:49:05+03:30", "utc": "2099-09-20T08:19:05Z", "ms": 4093575545128.918 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 04:19 on Sat 19 Sep to 02:35 on Sun 20 Sep.", "fact": "2099-09-19T00:49:15Z → 2099-09-19T23:04:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:01–11:49 on the 19th, 11:01–11:49 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24131 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Mashhad, 2099: Saturday 19 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi-bhadrapada", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Surya sasthi (paraviddha), Lolarka sasthi" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-19", "confidence": "determinate" } ], "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Bhādrapada) 2099 falls on Saturday 19 September. Ṣaṣṭhī runs from 04:19 on Sat 19 Sep to 02:35 on Sun 20 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30374, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2099-09-20T02:34:51+03:30", "utc": "2099-09-19T23:04:51Z", "ms": 4093542291107.9155 }, "end": { "local": "2099-09-21T01:33:37+03:30", "utc": "2099-09-20T22:03:37Z", "ms": 4093625017442.692 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-20T02:34:51+03:30", "utc": "2099-09-19T23:04:51Z", "ms": 4093542291107.9155 }, "end": { "local": "2099-09-21T01:33:37+03:30", "utc": "2099-09-20T22:03:37Z", "ms": 4093625017442.692 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-20", "window": { "start": { "local": "2099-09-20T11:01:05+03:30", "utc": "2099-09-20T07:31:05Z", "ms": 4093572665128.918 }, "end": { "local": "2099-09-20T11:49:05+03:30", "utc": "2099-09-20T08:19:05Z", "ms": 4093575545128.918 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-21", "window": { "start": { "local": "2099-09-21T11:00:44+03:30", "utc": "2099-09-21T07:30:44Z", "ms": 4093659043780.444 }, "end": { "local": "2099-09-21T11:48:44+03:30", "utc": "2099-09-21T08:18:44Z", "ms": 4093661923780.444 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:35 on Sun 20 Sep to 01:34 on Mon 21 Sep.", "fact": "2099-09-19T23:04:51Z → 2099-09-20T22:03:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:01–11:49 on the 20th, 11:01–11:49 on the 21st.", "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 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30374 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Mashhad, 2099: Sunday 20 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "muktabharana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Muktabharana vrata (purvaviddha), Lalita saptami (Bengal & Orissa)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-20", "confidence": "determinate" } ], "quote": "In Mashhad, Muktābharaṇa Vrata 2099 falls on Sunday 20 September. Saptamī runs from 02:35 on Sun 20 Sep to 01:34 on Mon 21 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34026, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-09-21T01:33:37+03:30", "utc": "2099-09-20T22:03:37Z", "ms": 4093625017442.692 }, "end": { "local": "2099-09-22T01:17:12+03:30", "utc": "2099-09-21T21:47:12Z", "ms": 4093710432177.599 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-21T01:33:37+03:30", "utc": "2099-09-20T22:03:37Z", "ms": 4093625017442.692 }, "end": { "local": "2099-09-22T01:17:12+03:30", "utc": "2099-09-21T21:47:12Z", "ms": 4093710432177.599 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-21", "window": { "start": { "local": "2099-09-21T11:00:44+03:30", "utc": "2099-09-21T07:30:44Z", "ms": 4093659043780.444 }, "end": { "local": "2099-09-21T11:48:44+03:30", "utc": "2099-09-21T08:18:44Z", "ms": 4093661923780.444 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-22", "window": { "start": { "local": "2099-09-22T11:00:23+03:30", "utc": "2099-09-22T07:30:23Z", "ms": 4093745422508.866 }, "end": { "local": "2099-09-22T11:48:23+03:30", "utc": "2099-09-22T08:18:23Z", "ms": 4093748302508.866 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:34 on Mon 21 Sep to 01:17 on Tue 22 Sep.", "fact": "2099-09-20T22:03:37Z → 2099-09-21T21:47:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:01–11:49 on the 21st, 11:00–11:48 on the 22nd.", "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 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 34026 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Mashhad, 2099: Monday 21 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "radhashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)" } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-21", "confidence": "determinate" } ], "quote": "In Mashhad, Rādhāṣṭamī 2099 falls on Monday 21 September. Aṣṭamī runs from 01:34 on Mon 21 Sep to 01:17 on Tue 22 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-09-24", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3015, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-09-24T02:51:30+03:30", "utc": "2099-09-23T23:21:30Z", "ms": 4093888890328.342 }, "end": { "local": "2099-09-25T04:32:19+03:30", "utc": "2099-09-25T01:02:19Z", "ms": 4093981338961.8374 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-24T02:51:30+03:30", "utc": "2099-09-23T23:21:30Z", "ms": 4093888890328.342 }, "end": { "local": "2099-09-25T04:32:19+03:30", "utc": "2099-09-25T01:02:19Z", "ms": 4093981338961.8374 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-09-24", "window": { "start": { "local": "2099-09-24T05:21:46+03:30", "utc": "2099-09-24T01:51:46Z", "ms": 4093897906365.8623 }, "end": { "local": "2099-09-24T05:21:46+03:30", "utc": "2099-09-24T01:51:46Z", "ms": 4093897906365.8623 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-09-25", "window": { "start": { "local": "2099-09-25T05:22:34+03:30", "utc": "2099-09-25T01:52:34Z", "ms": 4093984353934.1187 }, "end": { "local": "2099-09-25T05:22:34+03:30", "utc": "2099-09-25T01:52:34Z", "ms": 4093984353934.1187 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:52 on Thu 24 Sep to 04:32 on Fri 25 Sep.", "fact": "2099-09-23T23:21:30Z → 2099-09-25T01:02:19Z" }, { "step": "kaala", "text": "Sunrise is at 05:22 on the 24th and 05:23 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 24th and is not on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3015 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Mashhad, 2099: Thursday 24 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-24", "confidence": "determinate" } ], "quote": "In Mashhad, Parivartanī Ekādaśī 2099 falls on Thursday 24 September. Ekādaśī runs from 02:52 on Thu 24 Sep to 04:32 on Fri 25 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15578, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2099-09-25T04:32:19+03:30", "utc": "2099-09-25T01:02:19Z", "ms": 4093981338961.8374 }, "end": { "local": "2099-09-26T06:39:21+03:30", "utc": "2099-09-26T03:09:21Z", "ms": 4094075360518.4155 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-25T04:32:19+03:30", "utc": "2099-09-25T01:02:19Z", "ms": 4093981338961.8374 }, "end": { "local": "2099-09-26T06:39:21+03:30", "utc": "2099-09-26T03:09:21Z", "ms": 4094075360518.4155 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-09-25", "window": { "start": { "local": "2099-09-25T10:59:19+03:30", "utc": "2099-09-25T07:29:19Z", "ms": 4094004559368.8335 }, "end": { "local": "2099-09-25T11:47:19+03:30", "utc": "2099-09-25T08:17:19Z", "ms": 4094007439368.8335 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-09-26", "window": { "start": { "local": "2099-09-26T10:58:59+03:30", "utc": "2099-09-26T07:28:59Z", "ms": 4094090938620.673 }, "end": { "local": "2099-09-26T11:46:59+03:30", "utc": "2099-09-26T08:16:59Z", "ms": 4094093818620.673 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 04:32 on Fri 25 Sep to 06:39 on Sat 26 Sep.", "fact": "2099-09-25T01:02:19Z → 2099-09-26T03:09:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 25th, 10:59–11:47 on the 26th.", "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 25th and 0 of 48 on the 26th.", "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 15578 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Mashhad, 2099: Friday 25 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vamana-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-25", "confidence": "determinate" } ], "quote": "In Mashhad, Vāmana Jayantī 2099 falls on Friday 25 September. Dvādaśī runs from 04:32 on Fri 25 Sep to 06:39 on Sat 26 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pradosha-vrata?on=2099-09-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29799, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-09-26T06:39:21+03:30", "utc": "2099-09-26T03:09:21Z", "ms": 4094075360518.4155 }, "end": { "local": "2099-09-27T09:04:27+03:30", "utc": "2099-09-27T05:34:27Z", "ms": 4094170467357.9673 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-26T06:39:21+03:30", "utc": "2099-09-26T03:09:21Z", "ms": 4094075360518.4155 }, "end": { "local": "2099-09-27T09:04:27+03:30", "utc": "2099-09-27T05:34:27Z", "ms": 4094170467357.9673 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-09-26", "window": { "start": { "local": "2099-09-26T17:22:36+03:30", "utc": "2099-09-26T13:52:36Z", "ms": 4094113955586.94 }, "end": { "local": "2099-09-26T18:58:48+03:30", "utc": "2099-09-26T15:28:48Z", "ms": 4094119728114.2637 } }, "covered_min": 96, "window_min": 96, "qualifies": true }, { "local_date": "2099-09-27", "window": { "start": { "local": "2099-09-27T17:21:07+03:30", "utc": "2099-09-27T13:51:07Z", "ms": 4094200266577.073 }, "end": { "local": "2099-09-27T18:57:37+03:30", "utc": "2099-09-27T15:27:37Z", "ms": 4094206057381.7246 } }, "covered_min": 0, "window_min": 97, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:39 on Sat 26 Sep to 09:04 on Sun 27 Sep.", "fact": "2099-09-26T03:09:21Z → 2099-09-27T05:34:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:23–18:59 on the 26th, 17:21–18:58 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 96 of 96 minutes on the 26th and 0 of 97 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29799 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Saturday 26 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": "2099-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-26", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Saturday 26 September. Trayodaśī runs from 06:39 on Sat 26 Sep to 09:04 on Sun 27 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-09-26", "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/2099/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4614, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-09-27T09:04:27+03:30", "utc": "2099-09-27T05:34:27Z", "ms": 4094170467357.9673 }, "end": { "local": "2099-09-28T11:39:40+03:30", "utc": "2099-09-28T08:09:40Z", "ms": 4094266179743.165 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2099-09-27T09:04:27+03:30", "utc": "2099-09-27T05:34:27Z", "ms": 4094170467357.9673 }, "end": { "local": "2099-09-28T11:39:40+03:30", "utc": "2099-09-28T08:09:40Z", "ms": 4094266179743.165 } }, "kaala": "udaya-3", "days": [ { "local_date": "2099-09-27", "window": { "start": { "local": "2099-09-27T05:24:10+03:30", "utc": "2099-09-27T01:54:10Z", "ms": 4094157249541.868 }, "end": { "local": "2099-09-27T07:47:33+03:30", "utc": "2099-09-27T04:17:33Z", "ms": 4094165852948.909 } }, "covered_min": 0, "window_min": 143, "qualifies": false }, { "local_date": "2099-09-28", "window": { "start": { "local": "2099-09-28T05:24:58+03:30", "utc": "2099-09-28T01:54:58Z", "ms": 4094243697611.958 }, "end": { "local": "2099-09-28T07:47:54+03:30", "utc": "2099-09-28T04:17:54Z", "ms": 4094252273650.461 } }, "covered_min": 143, "window_min": 143, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:04 on Sun 27 Sep to 11:40 on Mon 28 Sep.", "fact": "2099-09-27T05:34:27Z → 2099-09-28T08:09:40Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:24–07:48 on the 27th, 05:25–07:48 on the 28th.", "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 143 minutes on the 27th and 143 of 143 on the 28th.", "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 4614 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Mashhad, 2099: Monday 28 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": "2099-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-09-28", "confidence": "determinate" } ], "quote": "In Mashhad, Ananta Caturdaśī 2099 falls on Monday 28 September. Caturdaśī runs from 09:04 on Sun 27 Sep to 11:40 on Mon 28 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-10-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10331, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-10-02T21:20:55+03:30", "utc": "2099-10-02T17:50:55Z", "ms": 4094646655318.1704 }, "end": { "local": "2099-10-03T23:04:52+03:30", "utc": "2099-10-03T19:34:52Z", "ms": 4094739291754.4536 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-02T21:20:55+03:30", "utc": "2099-10-02T17:50:55Z", "ms": 4094646655318.1704 }, "end": { "local": "2099-10-03T23:04:52+03:30", "utc": "2099-10-03T19:34:52Z", "ms": 4094739291754.4536 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-10-02", "window": { "start": { "local": "2099-10-02T18:28:44+03:30", "utc": "2099-10-02T14:58:44Z", "ms": 4094636324383.788 }, "end": { "local": "2099-10-02T18:28:44+03:30", "utc": "2099-10-02T14:58:44Z", "ms": 4094636324383.788 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-10-03", "window": { "start": { "local": "2099-10-03T19:01:12+03:30", "utc": "2099-10-03T15:31:12Z", "ms": 4094724671736.2607 }, "end": { "local": "2099-10-03T19:01:12+03:30", "utc": "2099-10-03T15:31:12Z", "ms": 4094724671736.2607 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:21 on Fri 2 Oct to 23:05 on Sat 3 Oct.", "fact": "2099-10-02T17:50:55Z → 2099-10-03T19:34:52Z" }, { "step": "kaala", "text": "Moonrise is at 18:29 on the 2nd and 19:01 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 2nd and is on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10331 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Saturday 3 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": "2099-10-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-03", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Saturday 3 October. Caturthī runs from 21:21 on Fri 2 Oct to 23:05 on Sat 3 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-10-03", "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/2099/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16457, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2099-10-05T00:20:24+03:30", "utc": "2099-10-04T20:50:24Z", "ms": 4094830224344.559 }, "end": { "local": "2099-10-06T01:02:19+03:30", "utc": "2099-10-05T21:32:19Z", "ms": 4094919139204.4253 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-05T00:20:24+03:30", "utc": "2099-10-04T20:50:24Z", "ms": 4094830224344.559 }, "end": { "local": "2099-10-06T01:02:19+03:30", "utc": "2099-10-05T21:32:19Z", "ms": 4094919139204.4253 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-10-04", "window": { "start": { "local": "2099-10-04T19:40:25+03:30", "utc": "2099-10-04T16:10:25Z", "ms": 4094813425242.4214 }, "end": { "local": "2099-10-04T19:40:25+03:30", "utc": "2099-10-04T16:10:25Z", "ms": 4094813425242.4214 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-10-05", "window": { "start": { "local": "2099-10-05T20:28:02+03:30", "utc": "2099-10-05T16:58:02Z", "ms": 4094902681743.232 }, "end": { "local": "2099-10-05T20:28:02+03:30", "utc": "2099-10-05T16:58:02Z", "ms": 4094902681743.232 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 00:20 on Mon 5 Oct to 01:02 on Tue 6 Oct.", "fact": "2099-10-04T20:50:24Z → 2099-10-05T21:32:19Z" }, { "step": "kaala", "text": "Moonrise is at 19:40 on the 4th and 20:28 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 4th and is on the 5th.", "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 16457 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Mashhad, 2099: Monday 5 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-05", "confidence": "determinate" } ], "quote": "In Mashhad, Candra Ṣaṣṭhī 2099 falls on Monday 5 October. Ṣaṣṭhī runs from 00:20 on Mon 5 Oct to 01:02 on Tue 6 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20648, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-10-07T01:06:27+03:30", "utc": "2099-10-06T21:36:27Z", "ms": 4095005787020.896 }, "end": { "local": "2099-10-08T00:30:16+03:30", "utc": "2099-10-07T21:00:16Z", "ms": 4095090015788.4697 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-07T01:06:27+03:30", "utc": "2099-10-06T21:36:27Z", "ms": 4095005787020.896 }, "end": { "local": "2099-10-08T00:30:16+03:30", "utc": "2099-10-07T21:00:16Z", "ms": 4095090015788.4697 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-10-06", "window": { "start": { "local": "2099-10-06T17:08:00+03:30", "utc": "2099-10-06T13:38:00Z", "ms": 4094977079873.0103 }, "end": { "local": "2099-10-06T18:47:15+03:30", "utc": "2099-10-06T15:17:15Z", "ms": 4094983034686.176 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "2099-10-07", "window": { "start": { "local": "2099-10-07T17:06:35+03:30", "utc": "2099-10-07T13:36:35Z", "ms": 4095063394631.6763 }, "end": { "local": "2099-10-07T18:46:08+03:30", "utc": "2099-10-07T15:16:08Z", "ms": 4095069367571.2305 } }, "covered_min": 100, "window_min": 100, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:06 on Wed 7 Oct to 00:30 on Thu 8 Oct.", "fact": "2099-10-06T21:36:27Z → 2099-10-07T21:00:16Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:08–18:47 on the 6th, 17:07–18:46 on the 7th.", "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 99 minutes on the 6th and 100 of 100 on the 7th.", "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 20648 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Mashhad, 2099: Wednesday 7 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "jitashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-07", "confidence": "determinate" } ], "quote": "In Mashhad, Jitāṣṭamī (Jitiya) 2099 falls on Wednesday 7 October. Aṣṭamī runs from 01:06 on Wed 7 Oct to 00:30 on Thu 8 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7248, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-10-07T01:06:27+03:30", "utc": "2099-10-06T21:36:27Z", "ms": 4095005787020.896 }, "end": { "local": "2099-10-08T00:30:16+03:30", "utc": "2099-10-07T21:00:16Z", "ms": 4095090015788.4697 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-07T01:06:27+03:30", "utc": "2099-10-06T21:36:27Z", "ms": 4095005787020.896 }, "end": { "local": "2099-10-08T00:30:16+03:30", "utc": "2099-10-07T21:00:16Z", "ms": 4095090015788.4697 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-10-06", "window": { "start": { "local": "2099-10-06T21:24:42+03:30", "utc": "2099-10-06T17:54:42Z", "ms": 4094992482261.046 }, "end": { "local": "2099-10-06T21:24:42+03:30", "utc": "2099-10-06T17:54:42Z", "ms": 4094992482261.046 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-10-07", "window": { "start": { "local": "2099-10-07T22:29:28+03:30", "utc": "2099-10-07T18:59:28Z", "ms": 4095082767763.2905 }, "end": { "local": "2099-10-07T22:29:28+03:30", "utc": "2099-10-07T18:59:28Z", "ms": 4095082767763.2905 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:06 on Wed 7 Oct to 00:30 on Thu 8 Oct.", "fact": "2099-10-06T21:36:27Z → 2099-10-07T21:00:16Z" }, { "step": "kaala", "text": "Moonrise is at 21:25 on the 6th and 22:29 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7248 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Mashhad, 2099: Wednesday 7 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-07", "confidence": "determinate" } ], "quote": "In Mashhad, Mahālakṣmī Vrata Samāpana 2099 falls on Wednesday 7 October. Aṣṭamī runs from 01:06 on Wed 7 Oct to 00:30 on Thu 8 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-10-10", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29865, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-10-09T21:17:09+03:30", "utc": "2099-10-09T17:47:09Z", "ms": 4095251228783.018 }, "end": { "local": "2099-10-10T18:45:47+03:30", "utc": "2099-10-10T15:15:47Z", "ms": 4095328547094.0312 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-09T21:17:09+03:30", "utc": "2099-10-09T17:47:09Z", "ms": 4095251228783.018 }, "end": { "local": "2099-10-10T18:45:47+03:30", "utc": "2099-10-10T15:15:47Z", "ms": 4095328547094.0312 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-10-10", "window": { "start": { "local": "2099-10-10T05:34:54+03:30", "utc": "2099-10-10T02:04:54Z", "ms": 4095281094086.28 }, "end": { "local": "2099-10-10T05:34:54+03:30", "utc": "2099-10-10T02:04:54Z", "ms": 4095281094086.28 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-10-11", "window": { "start": { "local": "2099-10-11T05:35:46+03:30", "utc": "2099-10-11T02:05:46Z", "ms": 4095367545799.5933 }, "end": { "local": "2099-10-11T05:35:46+03:30", "utc": "2099-10-11T02:05:46Z", "ms": 4095367545799.5933 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:17 on Fri 9 Oct to 18:46 on Sat 10 Oct.", "fact": "2099-10-09T17:47:09Z → 2099-10-10T15:15:47Z" }, { "step": "kaala", "text": "Sunrise is at 05:35 on the 10th and 05:36 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 10th and is not on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29865 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Mashhad, 2099: Saturday 10 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": "2099-10-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-10", "confidence": "determinate" } ], "quote": "In Mashhad, Indirā Ekādaśī 2099 falls on Saturday 10 October. Ekādaśī runs from 21:17 on Fri 9 Oct to 18:46 on Sat 10 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-10-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-10-11", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4564, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-10-11T15:44:56+03:30", "utc": "2099-10-11T12:14:56Z", "ms": 4095404095851.2607 }, "end": { "local": "2099-10-12T12:21:54+03:30", "utc": "2099-10-12T08:51:54Z", "ms": 4095478314175.485 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-11T15:44:56+03:30", "utc": "2099-10-11T12:14:56Z", "ms": 4095404095851.2607 }, "end": { "local": "2099-10-12T12:21:54+03:30", "utc": "2099-10-12T08:51:54Z", "ms": 4095478314175.485 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-10-11", "window": { "start": { "local": "2099-10-11T17:00:59+03:30", "utc": "2099-10-11T13:30:59Z", "ms": 4095408659473.0596 }, "end": { "local": "2099-10-11T18:41:45+03:30", "utc": "2099-10-11T15:11:45Z", "ms": 4095414704590.9727 } }, "covered_min": 101, "window_min": 101, "qualifies": true }, { "local_date": "2099-10-12", "window": { "start": { "local": "2099-10-12T16:59:37+03:30", "utc": "2099-10-12T13:29:37Z", "ms": 4095494977287.763 }, "end": { "local": "2099-10-12T18:40:40+03:30", "utc": "2099-10-12T15:10:40Z", "ms": 4095501040350.8906 } }, "covered_min": 0, "window_min": 101, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:45 on Sun 11 Oct to 12:22 on Mon 12 Oct.", "fact": "2099-10-11T12:14:56Z → 2099-10-12T08:51:54Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:01–18:42 on the 11th, 17:00–18:41 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 101 of 101 minutes on the 11th and 0 of 101 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4564 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Sunday 11 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": "2099-10-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-11", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Sunday 11 October. Trayodaśī runs from 15:45 on Sun 11 Oct to 12:22 on Mon 12 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-10-11", "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/2099/shivaratri?on=2099-10-12", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32560, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-10-12T12:21:54+03:30", "utc": "2099-10-12T08:51:54Z", "ms": 4095478314175.485 }, "end": { "local": "2099-10-13T08:45:14+03:30", "utc": "2099-10-13T05:15:14Z", "ms": 4095551713511.7334 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-12T12:21:54+03:30", "utc": "2099-10-12T08:51:54Z", "ms": 4095478314175.485 }, "end": { "local": "2099-10-13T08:45:14+03:30", "utc": "2099-10-13T05:15:14Z", "ms": 4095551713511.7334 } }, "kaala": "nishita", "days": [ { "local_date": "2099-10-11", "window": { "start": { "local": "2099-10-11T22:54:49+03:30", "utc": "2099-10-11T19:24:49Z", "ms": 4095429888665.2334 }, "end": { "local": "2099-10-11T23:42:49+03:30", "utc": "2099-10-11T20:12:49Z", "ms": 4095432768665.2334 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-10-12", "window": { "start": { "local": "2099-10-12T22:54:34+03:30", "utc": "2099-10-12T19:24:34Z", "ms": 4095516273774.491 }, "end": { "local": "2099-10-12T23:42:34+03:30", "utc": "2099-10-12T20:12:34Z", "ms": 4095519153774.491 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:22 on Mon 12 Oct to 08:45 on Tue 13 Oct.", "fact": "2099-10-12T08:51:54Z → 2099-10-13T05:15:14Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:55–23:43 on the 11th, 22:55–23:43 on the 12th.", "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 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32560 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Monday 12 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": "2099-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-12", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Monday 12 October. Caturdaśī runs from 12:22 on Mon 12 Oct to 08:45 on Tue 13 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-10-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13244, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2099-10-13T08:45:14+03:30", "utc": "2099-10-13T05:15:14Z", "ms": 4095551713511.7334 }, "end": { "local": "2099-10-14T05:04:17+03:30", "utc": "2099-10-14T01:34:17Z", "ms": 4095624857479.926 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-13T08:45:14+03:30", "utc": "2099-10-13T05:15:14Z", "ms": 4095551713511.7334 }, "end": { "local": "2099-10-14T05:04:17+03:30", "utc": "2099-10-14T01:34:17Z", "ms": 4095624857479.926 } }, "kaala": "aparahna", "days": [ { "local_date": "2099-10-13", "window": { "start": { "local": "2099-10-13T12:25:58+03:30", "utc": "2099-10-13T08:55:58Z", "ms": 4095564957585.9653 }, "end": { "local": "2099-10-13T14:42:07+03:30", "utc": "2099-10-13T11:12:07Z", "ms": 4095573126694.214 } }, "covered_min": 136, "window_min": 136, "qualifies": true }, { "local_date": "2099-10-14", "window": { "start": { "local": "2099-10-14T12:25:30+03:30", "utc": "2099-10-14T08:55:30Z", "ms": 4095651330231.331 }, "end": { "local": "2099-10-14T14:41:13+03:30", "utc": "2099-10-14T11:11:13Z", "ms": 4095659472638.1216 } }, "covered_min": 0, "window_min": 136, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 08:45 on Tue 13 Oct to 05:04 on Wed 14 Oct.", "fact": "2099-10-13T05:15:14Z → 2099-10-14T01:34:17Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 12:26–14:42 on the 13th, 12:26–14:41 on the 14th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 136 of 136 minutes on the 13th and 0 of 136 on the 14th.", "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 13244 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Mashhad, 2099: Tuesday 13 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": "2099-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-13", "confidence": "determinate" } ], "quote": "In Mashhad, Mahālaya Amāvāsyā 2099 falls on Tuesday 13 October. Amāvasyā runs from 08:45 on Tue 13 Oct to 05:04 on Wed 14 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20962, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2099-10-14T05:04:17+03:30", "utc": "2099-10-14T01:34:17Z", "ms": 4095624857479.926 }, "end": { "local": "2099-10-15T01:29:03+03:30", "utc": "2099-10-14T21:59:03Z", "ms": 4095698342841.6387 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-14T05:04:17+03:30", "utc": "2099-10-14T01:34:17Z", "ms": 4095624857479.926 }, "end": { "local": "2099-10-15T01:29:03+03:30", "utc": "2099-10-14T21:59:03Z", "ms": 4095698342841.6387 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-10-14", "window": { "start": { "local": "2099-10-14T10:53:39+03:30", "utc": "2099-10-14T07:23:39Z", "ms": 4095645819027.936 }, "end": { "local": "2099-10-14T11:41:39+03:30", "utc": "2099-10-14T08:11:39Z", "ms": 4095648699027.936 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-10-15", "window": { "start": { "local": "2099-10-15T10:53:26+03:30", "utc": "2099-10-15T07:23:26Z", "ms": 4095732205573.9937 }, "end": { "local": "2099-10-15T11:41:26+03:30", "utc": "2099-10-15T08:11:26Z", "ms": 4095735085573.9937 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 05:04 on Wed 14 Oct to 01:29 on Thu 15 Oct.", "fact": "2099-10-14T01:34:17Z → 2099-10-14T21:59:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:54–11:42 on the 14th, 10:53–11:41 on the 15th.", "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 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20962 s" }, { "step": "ruling", "text": "Navarātrārambha, Mashhad, 2099: Wednesday 14 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": "2099-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-14", "confidence": "determinate" } ], "quote": "In Mashhad, Navarātrārambha (Navratri) 2099 falls on Wednesday 14 October. Pratipadā runs from 05:04 on Wed 14 Oct to 01:29 on Thu 15 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vinayaka-chaturthi?on=2099-10-17", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18999, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-10-16T19:16:06+03:30", "utc": "2099-10-16T15:46:06Z", "ms": 4095848766466.6353 }, "end": { "local": "2099-10-17T16:57:39+03:30", "utc": "2099-10-17T13:27:39Z", "ms": 4095926859432.3643 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-16T19:16:06+03:30", "utc": "2099-10-16T15:46:06Z", "ms": 4095848766466.6353 }, "end": { "local": "2099-10-17T16:57:39+03:30", "utc": "2099-10-17T13:27:39Z", "ms": 4095926859432.3643 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-10-16", "window": { "start": { "local": "2099-10-16T10:53:13+03:30", "utc": "2099-10-16T07:23:13Z", "ms": 4095818592682.919 }, "end": { "local": "2099-10-16T11:41:13+03:30", "utc": "2099-10-16T08:11:13Z", "ms": 4095821472682.919 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-10-17", "window": { "start": { "local": "2099-10-17T10:53:00+03:30", "utc": "2099-10-17T07:23:00Z", "ms": 4095904980367.8564 }, "end": { "local": "2099-10-17T11:41:00+03:30", "utc": "2099-10-17T08:11:00Z", "ms": 4095907860367.8564 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:16 on Fri 16 Oct to 16:58 on Sat 17 Oct.", "fact": "2099-10-16T15:46:06Z → 2099-10-17T13:27:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 on the 16th, 10:53–11:41 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18999 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Saturday 17 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": "2099-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-17", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Saturday 17 October. Caturthī runs from 19:16 on Fri 16 Oct to 16:58 on Sat 17 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-10-17", "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/2099/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29264, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2099-10-19T14:35:06+03:30", "utc": "2099-10-19T11:05:06Z", "ms": 4096091106120.9526 }, "end": { "local": "2099-10-20T14:38:51+03:30", "utc": "2099-10-20T11:08:51Z", "ms": 4096177731035.51 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-19T14:35:06+03:30", "utc": "2099-10-19T11:05:06Z", "ms": 4096091106120.9526 }, "end": { "local": "2099-10-20T14:38:51+03:30", "utc": "2099-10-20T11:08:51Z", "ms": 4096177731035.51 } }, "kaala": "udaya-1", "days": [ { "local_date": "2099-10-19", "window": { "start": { "local": "2099-10-19T05:42:52+03:30", "utc": "2099-10-19T02:12:52Z", "ms": 4096059171882.2134 }, "end": { "local": "2099-10-19T06:27:22+03:30", "utc": "2099-10-19T02:57:22Z", "ms": 4096061841967.4136 } }, "covered_min": 0, "window_min": 45, "qualifies": false }, { "local_date": "2099-10-20", "window": { "start": { "local": "2099-10-20T05:43:47+03:30", "utc": "2099-10-20T02:13:47Z", "ms": 4096145626665.7754 }, "end": { "local": "2099-10-20T06:28:08+03:30", "utc": "2099-10-20T02:58:08Z", "ms": 4096148288046.204 } }, "covered_min": 44, "window_min": 44, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 14:35 on Mon 19 Oct to 14:39 on Tue 20 Oct.", "fact": "2099-10-19T11:05:06Z → 2099-10-20T11:08:51Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:43–06:27 on the 19th, 05:44–06:28 on the 20th.", "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 0 of 45 minutes on the 19th and 44 of 44 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one morning qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29264 s" }, { "step": "ruling", "text": "Durgā Saptamī, Mashhad, 2099: Tuesday 20 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise" } ], "kaala": "udaya-1", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-20", "confidence": "determinate" } ], "quote": "In Mashhad, Durgā Saptamī 2099 falls on Tuesday 20 October. Saptamī runs from 14:35 on Mon 19 Oct to 14:39 on Tue 20 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10704, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-10-20T14:38:51+03:30", "utc": "2099-10-20T11:08:51Z", "ms": 4096177731035.51 }, "end": { "local": "2099-10-21T15:31:45+03:30", "utc": "2099-10-21T12:01:45Z", "ms": 4096267304787.8755 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-20T14:38:51+03:30", "utc": "2099-10-20T11:08:51Z", "ms": 4096177731035.51 }, "end": { "local": "2099-10-21T15:31:45+03:30", "utc": "2099-10-21T12:01:45Z", "ms": 4096267304787.8755 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-10-20", "window": { "start": { "local": "2099-10-20T10:52:27+03:30", "utc": "2099-10-20T07:22:27Z", "ms": 4096164147018.9893 }, "end": { "local": "2099-10-20T11:40:27+03:30", "utc": "2099-10-20T08:10:27Z", "ms": 4096167027018.9893 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-10-21", "window": { "start": { "local": "2099-10-21T10:52:17+03:30", "utc": "2099-10-21T07:22:17Z", "ms": 4096250537151.3096 }, "end": { "local": "2099-10-21T11:40:17+03:30", "utc": "2099-10-21T08:10:17Z", "ms": 4096253417151.3096 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 14:39 on Tue 20 Oct to 15:32 on Wed 21 Oct.", "fact": "2099-10-20T11:08:51Z → 2099-10-21T12:01:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 20th, 10:52–11:40 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10704 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Mashhad, 2099: Wednesday 21 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": "2099-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-21", "confidence": "determinate" } ], "quote": "In Mashhad, Mahāṣṭamī (Durga Ashtami) 2099 falls on Wednesday 21 October. Aṣṭamī runs from 14:39 on Tue 20 Oct to 15:32 on Wed 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13888, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2099-10-21T15:31:45+03:30", "utc": "2099-10-21T12:01:45Z", "ms": 4096267304787.8755 }, "end": { "local": "2099-10-22T17:07:57+03:30", "utc": "2099-10-22T13:37:57Z", "ms": 4096359477382.906 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-21T15:31:45+03:30", "utc": "2099-10-21T12:01:45Z", "ms": 4096267304787.8755 }, "end": { "local": "2099-10-22T17:07:57+03:30", "utc": "2099-10-22T13:37:57Z", "ms": 4096359477382.906 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-10-21", "window": { "start": { "local": "2099-10-21T10:52:17+03:30", "utc": "2099-10-21T07:22:17Z", "ms": 4096250537151.3096 }, "end": { "local": "2099-10-21T11:40:17+03:30", "utc": "2099-10-21T08:10:17Z", "ms": 4096253417151.3096 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-10-22", "window": { "start": { "local": "2099-10-22T10:52:08+03:30", "utc": "2099-10-22T07:22:08Z", "ms": 4096336927933.9736 }, "end": { "local": "2099-10-22T11:40:08+03:30", "utc": "2099-10-22T08:10:08Z", "ms": 4096339807933.9736 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 15:32 on Wed 21 Oct to 17:08 on Thu 22 Oct.", "fact": "2099-10-21T12:01:45Z → 2099-10-22T13:37:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 21st, 10:52–11:40 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13888 s" }, { "step": "ruling", "text": "Mahānavamī, Mashhad, 2099: Thursday 22 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": "2099-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-22", "confidence": "determinate" } ], "quote": "In Mashhad, Mahānavamī 2099 falls on Thursday 22 October. Navamī runs from 15:32 on Wed 21 Oct to 17:08 on Thu 22 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1279, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2099-10-22T17:07:57+03:30", "utc": "2099-10-22T13:37:57Z", "ms": 4096359477382.906 }, "end": { "local": "2099-10-23T19:17:59+03:30", "utc": "2099-10-23T15:47:59Z", "ms": 4096453679365.9116 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-22T17:07:57+03:30", "utc": "2099-10-22T13:37:57Z", "ms": 4096359477382.906 }, "end": { "local": "2099-10-23T19:17:59+03:30", "utc": "2099-10-23T15:47:59Z", "ms": 4096453679365.9116 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-10-22", "window": { "start": { "local": "2099-10-22T10:52:08+03:30", "utc": "2099-10-22T07:22:08Z", "ms": 4096336927933.9736 }, "end": { "local": "2099-10-22T11:40:08+03:30", "utc": "2099-10-22T08:10:08Z", "ms": 4096339807933.9736 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-10-23", "window": { "start": { "local": "2099-10-23T10:51:59+03:30", "utc": "2099-10-23T07:21:59Z", "ms": 4096423319382.937 }, "end": { "local": "2099-10-23T11:39:59+03:30", "utc": "2099-10-23T08:09:59Z", "ms": 4096426199382.937 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 17:08 on Thu 22 Oct to 19:18 on Fri 23 Oct.", "fact": "2099-10-22T13:37:57Z → 2099-10-23T15:47:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 22nd, 10:52–11:40 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Daśamī touches Śravaṇa in the day time on neither day, so the rest of the rule applies. Daśamī 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1279 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Mashhad, 2099: Friday 23 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": "2099-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-23", "confidence": "determinate" } ], "quote": "In Mashhad, Vijayā Daśamī (Dussehra) 2099 falls on Friday 23 October. Daśamī touches Śravaṇa in the day time on neither day, so madhyāhna decides. Daśamī runs from 17:08 on Thu 22 Oct to 19:18 on Fri 23 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-10-24", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28705, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-10-23T19:17:59+03:30", "utc": "2099-10-23T15:47:59Z", "ms": 4096453679365.9116 }, "end": { "local": "2099-10-24T21:50:01+03:30", "utc": "2099-10-24T18:20:01Z", "ms": 4096549200620.9746 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-23T19:17:59+03:30", "utc": "2099-10-23T15:47:59Z", "ms": 4096453679365.9116 }, "end": { "local": "2099-10-24T21:50:01+03:30", "utc": "2099-10-24T18:20:01Z", "ms": 4096549200620.9746 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-10-24", "window": { "start": { "local": "2099-10-24T05:47:29+03:30", "utc": "2099-10-24T02:17:29Z", "ms": 4096491449123.2627 }, "end": { "local": "2099-10-24T05:47:29+03:30", "utc": "2099-10-24T02:17:29Z", "ms": 4096491449123.2627 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-10-25", "window": { "start": { "local": "2099-10-25T05:48:26+03:30", "utc": "2099-10-25T02:18:26Z", "ms": 4096577905563.8867 }, "end": { "local": "2099-10-25T05:48:26+03:30", "utc": "2099-10-25T02:18:26Z", "ms": 4096577905563.8867 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:18 on Fri 23 Oct to 21:50 on Sat 24 Oct.", "fact": "2099-10-23T15:47:59Z → 2099-10-24T18:20:01Z" }, { "step": "kaala", "text": "Sunrise is at 05:47 on the 24th and 05:48 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 24th and is not on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28705 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Mashhad, 2099: Saturday 24 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": "2099-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-24", "confidence": "determinate" } ], "quote": "In Mashhad, Pāśāṅkuśā Ekādaśī 2099 falls on Saturday 24 October. Ekādaśī runs from 19:18 on Fri 23 Oct to 21:50 on Sat 24 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-10-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-10-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21823, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-10-26T00:31:36+03:30", "utc": "2099-10-25T21:01:36Z", "ms": 4096645296492.014 }, "end": { "local": "2099-10-27T03:11:29+03:30", "utc": "2099-10-26T23:41:29Z", "ms": 4096741289068.327 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2099-10-26T00:31:36+03:30", "utc": "2099-10-25T21:01:36Z", "ms": 4096645296492.014 }, "end": { "local": "2099-10-27T03:11:29+03:30", "utc": "2099-10-26T23:41:29Z", "ms": 4096741289068.327 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-10-25", "window": { "start": { "local": "2099-10-25T16:43:03+03:30", "utc": "2099-10-25T13:13:03Z", "ms": 4096617183123.306 }, "end": { "local": "2099-10-25T18:27:54+03:30", "utc": "2099-10-25T14:57:54Z", "ms": 4096623473684.4746 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "2099-10-26", "window": { "start": { "local": "2099-10-26T16:41:53+03:30", "utc": "2099-10-26T13:11:53Z", "ms": 4096703513441.8345 }, "end": { "local": "2099-10-26T18:27:01+03:30", "utc": "2099-10-26T14:57:01Z", "ms": 4096709820906.3135 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:32 on Mon 26 Oct to 03:11 on Tue 27 Oct.", "fact": "2099-10-25T21:01:36Z → 2099-10-26T23:41:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:43–18:28 on the 25th, 16:42–18:27 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 105 minutes on the 25th and 105 of 105 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21823 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Monday 26 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": "2099-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-10-26", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Monday 26 October. Trayodaśī runs from 00:32 on Mon 26 Oct to 03:11 on Tue 27 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-10-26", "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/2099/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22385, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-11-01T12:12:32+03:30", "utc": "2099-11-01T08:42:32Z", "ms": 4097205751598.321 }, "end": { "local": "2099-11-02T12:48:46+03:30", "utc": "2099-11-02T09:18:46Z", "ms": 4097294325566.5 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-01T12:12:32+03:30", "utc": "2099-11-01T08:42:32Z", "ms": 4097205751598.321 }, "end": { "local": "2099-11-02T12:48:46+03:30", "utc": "2099-11-02T09:18:46Z", "ms": 4097294325566.5 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-11-01", "window": { "start": { "local": "2099-11-01T18:25:37+03:30", "utc": "2099-11-01T14:55:37Z", "ms": 4097228136774.717 }, "end": { "local": "2099-11-01T18:25:37+03:30", "utc": "2099-11-01T14:55:37Z", "ms": 4097228136774.717 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-11-02", "window": { "start": { "local": "2099-11-02T19:19:21+03:30", "utc": "2099-11-02T15:49:21Z", "ms": 4097317761190.8105 }, "end": { "local": "2099-11-02T19:19:21+03:30", "utc": "2099-11-02T15:49:21Z", "ms": 4097317761190.8105 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:13 on Sun 1 Nov to 12:49 on Mon 2 Nov.", "fact": "2099-11-01T08:42:32Z → 2099-11-02T09:18:46Z" }, { "step": "kaala", "text": "Moonrise is at 18:26 on the 1st and 19:19 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 22385 s" }, { "step": "ruling", "text": "Karaka Caturthī, Mashhad, 2099: Sunday 1 November.", "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": "2099-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-01", "confidence": "determinate" } ], "quote": "In Mashhad, Karaka Caturthī (Karwa Chauth) 2099 falls on Sunday 1 November. Caturthī runs from 12:13 on Sun 1 Nov to 12:49 on Mon 2 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-11-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22385, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-11-01T12:12:32+03:30", "utc": "2099-11-01T08:42:32Z", "ms": 4097205751598.321 }, "end": { "local": "2099-11-02T12:48:46+03:30", "utc": "2099-11-02T09:18:46Z", "ms": 4097294325566.5 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-01T12:12:32+03:30", "utc": "2099-11-01T08:42:32Z", "ms": 4097205751598.321 }, "end": { "local": "2099-11-02T12:48:46+03:30", "utc": "2099-11-02T09:18:46Z", "ms": 4097294325566.5 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-11-01", "window": { "start": { "local": "2099-11-01T18:25:37+03:30", "utc": "2099-11-01T14:55:37Z", "ms": 4097228136774.717 }, "end": { "local": "2099-11-01T18:25:37+03:30", "utc": "2099-11-01T14:55:37Z", "ms": 4097228136774.717 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-11-02", "window": { "start": { "local": "2099-11-02T19:19:21+03:30", "utc": "2099-11-02T15:49:21Z", "ms": 4097317761190.8105 }, "end": { "local": "2099-11-02T19:19:21+03:30", "utc": "2099-11-02T15:49:21Z", "ms": 4097317761190.8105 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:13 on Sun 1 Nov to 12:49 on Mon 2 Nov.", "fact": "2099-11-01T08:42:32Z → 2099-11-02T09:18:46Z" }, { "step": "kaala", "text": "Moonrise is at 18:26 on the 1st and 19:19 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22385 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Sunday 1 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": "2099-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-01", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Sunday 1 November. Caturthī runs from 12:13 on Sun 1 Nov to 12:49 on Mon 2 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-11-01", "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/2099/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38896, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-11-05T11:49:55+03:30", "utc": "2099-11-05T08:19:55Z", "ms": 4097549994712.54 }, "end": { "local": "2099-11-06T10:30:58+03:30", "utc": "2099-11-06T07:00:58Z", "ms": 4097631657920.7173 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-05T11:49:55+03:30", "utc": "2099-11-05T08:19:55Z", "ms": 4097549994712.54 }, "end": { "local": "2099-11-06T10:30:58+03:30", "utc": "2099-11-06T07:00:58Z", "ms": 4097631657920.7173 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-11-05", "window": { "start": { "local": "2099-11-05T22:38:11+03:30", "utc": "2099-11-05T19:08:11Z", "ms": 4097588890602.645 }, "end": { "local": "2099-11-05T22:38:11+03:30", "utc": "2099-11-05T19:08:11Z", "ms": 4097588890602.645 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-11-06", "window": { "start": { "local": "2099-11-06T23:48:57+03:30", "utc": "2099-11-06T20:18:57Z", "ms": 4097679537497.669 }, "end": { "local": "2099-11-06T23:48:57+03:30", "utc": "2099-11-06T20:18:57Z", "ms": 4097679537497.669 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:50 on Thu 5 Nov to 10:31 on Fri 6 Nov.", "fact": "2099-11-05T08:19:55Z → 2099-11-06T07:00:58Z" }, { "step": "kaala", "text": "Moonrise is at 22:38 on the 5th and 23:49 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 5th and is not on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38896 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Mashhad, 2099: Thursday 5 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-05", "confidence": "determinate" } ], "quote": "In Mashhad, Ahoyī Aṣṭamī 2099 falls on Thursday 5 November. Aṣṭamī runs from 11:50 on Thu 5 Nov to 10:31 on Fri 6 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-11-08", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1396, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-11-08T06:25:24+03:30", "utc": "2099-11-08T02:55:24Z", "ms": 4097789723728.974 }, "end": { "local": "2099-11-09T03:44:04+03:30", "utc": "2099-11-09T00:14:04Z", "ms": 4097866444053.5645 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-08T06:25:24+03:30", "utc": "2099-11-08T02:55:24Z", "ms": 4097789723728.974 }, "end": { "local": "2099-11-09T03:44:04+03:30", "utc": "2099-11-09T00:14:04Z", "ms": 4097866444053.5645 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-11-08", "window": { "start": { "local": "2099-11-08T06:02:08+03:30", "utc": "2099-11-08T02:32:08Z", "ms": 4097788327602.938 }, "end": { "local": "2099-11-08T06:02:08+03:30", "utc": "2099-11-08T02:32:08Z", "ms": 4097788327602.938 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-11-09", "window": { "start": { "local": "2099-11-09T06:03:08+03:30", "utc": "2099-11-09T02:33:08Z", "ms": 4097874788162.0747 }, "end": { "local": "2099-11-09T06:03:08+03:30", "utc": "2099-11-09T02:33:08Z", "ms": 4097874788162.0747 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:25 on Sun 8 Nov to 03:44 on Mon 9 Nov.", "fact": "2099-11-08T02:55:24Z → 2099-11-09T00:14:04Z" }, { "step": "kaala", "text": "Sunrise is at 06:02 on the 8th and 06:03 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not 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": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1396 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Mashhad, 2099: Sunday 8 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": "2099-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-08", "confidence": "determinate" } ], "quote": "In Mashhad, Ramā Ekādaśī 2099 falls on Sunday 8 November. Ekādaśī runs from 06:25 on Sun 8 Nov to 03:44 on Mon 9 Nov, and is current at sunrise on neither day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-11-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23205, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2099-11-09T03:44:04+03:30", "utc": "2099-11-09T00:14:04Z", "ms": 4097866444053.5645 }, "end": { "local": "2099-11-10T00:43:27+03:30", "utc": "2099-11-09T21:13:27Z", "ms": 4097942007368.739 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-09T03:44:04+03:30", "utc": "2099-11-09T00:14:04Z", "ms": 4097866444053.5645 }, "end": { "local": "2099-11-10T00:43:27+03:30", "utc": "2099-11-09T21:13:27Z", "ms": 4097942007368.739 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-11-08", "window": { "start": { "local": "2099-11-08T16:28:43+03:30", "utc": "2099-11-08T12:58:43Z", "ms": 4097825923108.876 }, "end": { "local": "2099-11-08T18:17:18+03:30", "utc": "2099-11-08T14:47:18Z", "ms": 4097832438449.3022 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "2099-11-09", "window": { "start": { "local": "2099-11-09T16:27:52+03:30", "utc": "2099-11-09T12:57:52Z", "ms": 4097912272379.0547 }, "end": { "local": "2099-11-09T18:16:43+03:30", "utc": "2099-11-09T14:46:43Z", "ms": 4097918802576.8916 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:44 on Mon 9 Nov to 00:43 on Tue 10 Nov.", "fact": "2099-11-09T00:14:04Z → 2099-11-09T21:13:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:29–18:17 on the 8th, 16:28–18:17 on the 9th.", "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 109 minutes on the 8th and 109 of 109 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23205 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Mashhad, 2099: Monday 9 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-09", "confidence": "determinate" } ], "quote": "In Mashhad, Govatsa Dvādaśī (Vasu Baras) 2099 falls on Monday 9 November. Dvādaśī runs from 03:44 on Mon 9 Nov to 00:43 on Tue 10 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11659, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-11-10T00:43:27+03:30", "utc": "2099-11-09T21:13:27Z", "ms": 4097942007368.739 }, "end": { "local": "2099-11-10T21:30:27+03:30", "utc": "2099-11-10T18:00:27Z", "ms": 4098016826925.3267 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-10T00:43:27+03:30", "utc": "2099-11-09T21:13:27Z", "ms": 4097942007368.739 }, "end": { "local": "2099-11-10T21:30:27+03:30", "utc": "2099-11-10T18:00:27Z", "ms": 4098016826925.3267 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-11-09", "window": { "start": { "local": "2099-11-09T16:27:52+03:30", "utc": "2099-11-09T12:57:52Z", "ms": 4097912272379.0547 }, "end": { "local": "2099-11-09T18:16:43+03:30", "utc": "2099-11-09T14:46:43Z", "ms": 4097918802576.8916 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "2099-11-10", "window": { "start": { "local": "2099-11-10T16:27:03+03:30", "utc": "2099-11-10T12:57:03Z", "ms": 4097998623244.8145 }, "end": { "local": "2099-11-10T18:16:08+03:30", "utc": "2099-11-10T14:46:08Z", "ms": 4098005168102.188 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:43 on Tue 10 Nov to 21:30 on Tue 10 Nov.", "fact": "2099-11-09T21:13:27Z → 2099-11-10T18:00:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:28–18:17 on the 9th, 16:27–18:16 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 109 minutes on the 9th and 109 of 109 on the 10th.", "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 11659 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Mashhad, 2099: Tuesday 10 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-10", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Dīpadāna 2099 falls on Tuesday 10 November. Trayodaśī runs from 00:43 on Tue 10 Nov to 21:30 on Tue 10 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pradosha-vrata?on=2099-11-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11659, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-11-10T00:43:27+03:30", "utc": "2099-11-09T21:13:27Z", "ms": 4097942007368.739 }, "end": { "local": "2099-11-10T21:30:27+03:30", "utc": "2099-11-10T18:00:27Z", "ms": 4098016826925.3267 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-10T00:43:27+03:30", "utc": "2099-11-09T21:13:27Z", "ms": 4097942007368.739 }, "end": { "local": "2099-11-10T21:30:27+03:30", "utc": "2099-11-10T18:00:27Z", "ms": 4098016826925.3267 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-11-09", "window": { "start": { "local": "2099-11-09T16:27:52+03:30", "utc": "2099-11-09T12:57:52Z", "ms": 4097912272379.0547 }, "end": { "local": "2099-11-09T18:16:43+03:30", "utc": "2099-11-09T14:46:43Z", "ms": 4097918802576.8916 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "2099-11-10", "window": { "start": { "local": "2099-11-10T16:27:03+03:30", "utc": "2099-11-10T12:57:03Z", "ms": 4097998623244.8145 }, "end": { "local": "2099-11-10T18:16:08+03:30", "utc": "2099-11-10T14:46:08Z", "ms": 4098005168102.188 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:43 on Tue 10 Nov to 21:30 on Tue 10 Nov.", "fact": "2099-11-09T21:13:27Z → 2099-11-10T18:00:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:28–18:17 on the 9th, 16:27–18:16 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 109 minutes on the 9th and 109 of 109 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 11659 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Tuesday 10 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": "2099-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-10", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Tuesday 10 November. Trayodaśī runs from 00:43 on Tue 10 Nov to 21:30 on Tue 10 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-11-10", "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/2099/shivaratri?on=2099-11-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4900, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-11-10T21:30:27+03:30", "utc": "2099-11-10T18:00:27Z", "ms": 4098016826925.3267 }, "end": { "local": "2099-11-11T18:13:20+03:30", "utc": "2099-11-11T14:43:20Z", "ms": 4098091400319.57 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-10T21:30:27+03:30", "utc": "2099-11-10T18:00:27Z", "ms": 4098016826925.3267 }, "end": { "local": "2099-11-11T18:13:20+03:30", "utc": "2099-11-11T14:43:20Z", "ms": 4098091400319.57 } }, "kaala": "nishita", "days": [ { "local_date": "2099-11-10", "window": { "start": { "local": "2099-11-10T22:52:06+03:30", "utc": "2099-11-10T19:22:06Z", "ms": 4098021726459.9653 }, "end": { "local": "2099-11-10T23:40:06+03:30", "utc": "2099-11-10T20:10:06Z", "ms": 4098024606459.9653 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-11-11", "window": { "start": { "local": "2099-11-11T22:52:13+03:30", "utc": "2099-11-11T19:22:13Z", "ms": 4098108133149.3203 }, "end": { "local": "2099-11-11T23:40:13+03:30", "utc": "2099-11-11T20:10:13Z", "ms": 4098111013149.3203 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:30 on Tue 10 Nov to 18:13 on Wed 11 Nov.", "fact": "2099-11-10T18:00:27Z → 2099-11-11T14:43:20Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:52–23:40 on the 10th, 22:52–23:40 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 4900 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Tuesday 10 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": "2099-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-10", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Tuesday 10 November. Caturdaśī runs from 21:30 on Tue 10 Nov to 18:13 on Wed 11 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-11-10", "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/2099/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24338, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-11-10T21:30:27+03:30", "utc": "2099-11-10T18:00:27Z", "ms": 4098016826925.3267 }, "end": { "local": "2099-11-11T18:13:20+03:30", "utc": "2099-11-11T14:43:20Z", "ms": 4098091400319.57 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-10T21:30:27+03:30", "utc": "2099-11-10T18:00:27Z", "ms": 4098016826925.3267 }, "end": { "local": "2099-11-11T18:13:20+03:30", "utc": "2099-11-11T14:43:20Z", "ms": 4098091400319.57 } }, "kaala": "arunodaya", "days": [ { "local_date": "2099-11-11", "window": { "start": { "local": "2099-11-11T04:16:05+03:30", "utc": "2099-11-11T00:46:05Z", "ms": 4098041164817.7427 }, "end": { "local": "2099-11-11T06:05:10+03:30", "utc": "2099-11-11T02:35:10Z", "ms": 4098047709675.116 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "2099-11-12", "window": { "start": { "local": "2099-11-12T04:16:51+03:30", "utc": "2099-11-12T00:46:51Z", "ms": 4098127611255.1 }, "end": { "local": "2099-11-12T06:06:11+03:30", "utc": "2099-11-12T02:36:11Z", "ms": 4098134170566.2925 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:30 on Tue 10 Nov to 18:13 on Wed 11 Nov.", "fact": "2099-11-10T18:00:27Z → 2099-11-11T14:43:20Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:16–06:05 on the 11th, 04:17–06:06 on the 12th.", "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 109 of 109 minutes on the 11th and 0 of 109 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24338 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Mashhad, 2099: Wednesday 11 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-11", "confidence": "determinate" } ], "quote": "In Mashhad, Naraka Caturdaśī (Choti Diwali) 2099 falls on Wednesday 11 November. Caturdaśī runs from 21:30 on Tue 10 Nov to 18:13 on Wed 11 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-11", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 135, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2099-11-11T18:13:20+03:30", "utc": "2099-11-11T14:43:20Z", "ms": 4098091400319.57 }, "end": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-11T18:13:20+03:30", "utc": "2099-11-11T14:43:20Z", "ms": 4098091400319.57 }, "end": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-11-11", "window": { "start": { "local": "2099-11-11T16:26:16+03:30", "utc": "2099-11-11T12:56:16Z", "ms": 4098084975732.3486 }, "end": { "local": "2099-11-11T18:15:35+03:30", "utc": "2099-11-11T14:45:35Z", "ms": 4098091535043.541 } }, "covered_min": 2, "window_min": 109, "qualifies": true }, { "local_date": "2099-11-12", "window": { "start": { "local": "2099-11-12T16:25:30+03:30", "utc": "2099-11-12T12:55:30Z", "ms": 4098171329866.312 }, "end": { "local": "2099-11-12T18:15:03+03:30", "utc": "2099-11-12T14:45:03Z", "ms": 4098177903417.668 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 18:13 on Wed 11 Nov to 15:02 on Thu 12 Nov.", "fact": "2099-11-11T14:43:20Z → 2099-11-12T11:31:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:26–18:16 on the 11th, 16:25–18:15 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 2 of 109 minutes on the 11th and 0 of 110 on the 12th.", "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 135 s < 300 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Mashhad, 2099: Wednesday 11 November.", "fact": "confidence: boundary (margin)" } ], "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": "2099-11-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-11", "confidence": "determinate" } ], "quote": "In Mashhad, Lakṣmī Pūjā (Diwali) 2099 falls on Wednesday 11 November. Amāvasyā runs from 18:13 on Wed 11 Nov to 15:02 on Thu 12 Nov and covers 2 of 109 minutes of pradoṣa that evening. It is 2 min 15 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16733, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2099-11-11T18:13:20+03:30", "utc": "2099-11-11T14:43:20Z", "ms": 4098091400319.57 }, "end": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-11T18:13:20+03:30", "utc": "2099-11-11T14:43:20Z", "ms": 4098091400319.57 }, "end": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 } }, "kaala": "nishita", "days": [ { "local_date": "2099-11-11", "window": { "start": { "local": "2099-11-11T22:52:13+03:30", "utc": "2099-11-11T19:22:13Z", "ms": 4098108133149.3203 }, "end": { "local": "2099-11-11T23:40:13+03:30", "utc": "2099-11-11T20:10:13Z", "ms": 4098111013149.3203 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-11-12", "window": { "start": { "local": "2099-11-12T22:52:21+03:30", "utc": "2099-11-12T19:22:21Z", "ms": 4098194540683.8965 }, "end": { "local": "2099-11-12T23:40:21+03:30", "utc": "2099-11-12T20:10:21Z", "ms": 4098197420683.8965 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 18:13 on Wed 11 Nov to 15:02 on Thu 12 Nov.", "fact": "2099-11-11T14:43:20Z → 2099-11-12T11:31:30Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:52–23:40 on the 11th, 22:52–23:40 on the 12th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16733 s" }, { "step": "ruling", "text": "Kālī Pūjā, Mashhad, 2099: Wednesday 11 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": "2099-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-11", "confidence": "determinate" } ], "quote": "In Mashhad, Kālī Pūjā 2099 falls on Wednesday 11 November. Amāvasyā runs from 18:13 on Wed 11 Nov to 15:02 on Thu 12 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5040, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 }, "end": { "local": "2099-11-13T12:05:01+03:30", "utc": "2099-11-13T08:35:01Z", "ms": 4098242100946.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 }, "end": { "local": "2099-11-13T12:05:01+03:30", "utc": "2099-11-13T08:35:01Z", "ms": 4098242100946.0044 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-11-12", "window": { "start": { "local": "2099-11-12T16:25:30+03:30", "utc": "2099-11-12T12:55:30Z", "ms": 4098171329866.312 }, "end": { "local": "2099-11-12T18:15:03+03:30", "utc": "2099-11-12T14:45:03Z", "ms": 4098177903417.668 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "2099-11-13", "window": { "start": { "local": "2099-11-13T16:24:46+03:30", "utc": "2099-11-13T12:54:46Z", "ms": 4098257685670.3857 }, "end": { "local": "2099-11-13T18:14:33+03:30", "utc": "2099-11-13T14:44:33Z", "ms": 4098264273240.2095 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 15:02 on Thu 12 Nov to 12:05 on Fri 13 Nov.", "fact": "2099-11-12T11:31:30Z → 2099-11-13T08:35:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:25–18:15 on the 12th, 16:25–18:15 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 110 of 110 minutes on the 12th and 0 of 110 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5040 s" }, { "step": "ruling", "text": "Bali Pūjā, Mashhad, 2099: Thursday 12 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": "2099-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-12", "confidence": "determinate" } ], "quote": "In Mashhad, Bali Pūjā 2099 falls on Thursday 12 November. Pratipadā runs from 15:02 on Thu 12 Nov to 12:05 on Fri 13 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1502, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 }, "end": { "local": "2099-11-13T12:05:01+03:30", "utc": "2099-11-13T08:35:01Z", "ms": 4098242100946.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 }, "end": { "local": "2099-11-13T12:05:01+03:30", "utc": "2099-11-13T08:35:01Z", "ms": 4098242100946.0044 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-11-12", "window": { "start": { "local": "2099-11-12T10:51:50+03:30", "utc": "2099-11-12T07:21:50Z", "ms": 4098151310216.3022 }, "end": { "local": "2099-11-12T11:39:50+03:30", "utc": "2099-11-12T08:09:50Z", "ms": 4098154190216.3022 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-11-13", "window": { "start": { "local": "2099-11-13T10:51:59+03:30", "utc": "2099-11-13T07:21:59Z", "ms": 4098237718585.933 }, "end": { "local": "2099-11-13T11:39:59+03:30", "utc": "2099-11-13T08:09:59Z", "ms": 4098240598585.933 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 15:02 on Thu 12 Nov to 12:05 on Fri 13 Nov.", "fact": "2099-11-12T11:31:30Z → 2099-11-13T08:35:01Z" }, { "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": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1502 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Mashhad, 2099: Friday 13 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": "2099-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-13", "confidence": "determinate" } ], "quote": "In Mashhad, Govardhana Pūjā 2099 falls on Friday 13 November. Pratipadā runs from 15:02 on Thu 12 Nov to 12:05 on Fri 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9118, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 }, "end": { "local": "2099-11-13T12:05:01+03:30", "utc": "2099-11-13T08:35:01Z", "ms": 4098242100946.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-12T15:01:30+03:30", "utc": "2099-11-12T11:31:30Z", "ms": 4098166290307.613 }, "end": { "local": "2099-11-13T12:05:01+03:30", "utc": "2099-11-13T08:35:01Z", "ms": 4098242100946.0044 } }, "kaala": "purvahna", "days": [ { "local_date": "2099-11-12", "window": { "start": { "local": "2099-11-12T06:06:11+03:30", "utc": "2099-11-12T02:36:11Z", "ms": 4098134170566.2925 }, "end": { "local": "2099-11-12T09:32:37+03:30", "utc": "2099-11-12T06:02:37Z", "ms": 4098146556999.6323 } }, "covered_min": 0, "window_min": 206, "qualifies": false }, { "local_date": "2099-11-13", "window": { "start": { "local": "2099-11-13T06:07:12+03:30", "utc": "2099-11-13T02:37:12Z", "ms": 4098220631501.4805 }, "end": { "local": "2099-11-13T09:33:03+03:30", "utc": "2099-11-13T06:03:03Z", "ms": 4098232982891.1157 } }, "covered_min": 206, "window_min": 206, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 15:02 on Thu 12 Nov to 12:05 on Fri 13 Nov.", "fact": "2099-11-12T11:31:30Z → 2099-11-13T08:35:01Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:06–09:33 on the 12th, 06:07–09:33 on the 13th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 0 of 206 minutes on the 12th and 206 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 9118 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Mashhad, 2099: Friday 13 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-13", "confidence": "determinate" } ], "quote": "In Mashhad, Dyūta Pratipad 2099 falls on Friday 13 November. Pratipadā runs from 15:02 on Thu 12 Nov to 12:05 on Fri 13 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1502, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2099-11-13T12:05:01+03:30", "utc": "2099-11-13T08:35:01Z", "ms": 4098242100946.0044 }, "end": { "local": "2099-11-14T09:34:07+03:30", "utc": "2099-11-14T06:04:07Z", "ms": 4098319447302.565 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-13T12:05:01+03:30", "utc": "2099-11-13T08:35:01Z", "ms": 4098242100946.0044 }, "end": { "local": "2099-11-14T09:34:07+03:30", "utc": "2099-11-14T06:04:07Z", "ms": 4098319447302.565 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-11-13", "window": { "start": { "local": "2099-11-13T10:51:59+03:30", "utc": "2099-11-13T07:21:59Z", "ms": 4098237718585.933 }, "end": { "local": "2099-11-13T11:39:59+03:30", "utc": "2099-11-13T08:09:59Z", "ms": 4098240598585.933 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-11-14", "window": { "start": { "local": "2099-11-14T10:52:08+03:30", "utc": "2099-11-14T07:22:08Z", "ms": 4098324127805.967 }, "end": { "local": "2099-11-14T11:40:08+03:30", "utc": "2099-11-14T08:10:08Z", "ms": 4098327007805.967 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 12:05 on Fri 13 Nov to 09:34 on Sat 14 Nov.", "fact": "2099-11-13T08:35:01Z → 2099-11-14T06:04:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 13th, 10:52–11:40 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 0 of 48 on the 14th.", "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: purvaviddha → second-day · margin 1502 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Mashhad, 2099: Saturday 14 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": "2099-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-13", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Dvitīyā (Bhai Dooj) 2099 falls on Saturday 14 November. Dvitīyā runs from 12:05 on Fri 13 Nov to 09:34 on Sat 14 Nov, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11623, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-11-15T07:38:35+03:30", "utc": "2099-11-15T04:08:35Z", "ms": 4098398915347.591 }, "end": { "local": "2099-11-16T06:26:49+03:30", "utc": "2099-11-16T02:56:49Z", "ms": 4098481008585.9663 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-15T07:38:35+03:30", "utc": "2099-11-15T04:08:35Z", "ms": 4098398915347.591 }, "end": { "local": "2099-11-16T06:26:49+03:30", "utc": "2099-11-16T02:56:49Z", "ms": 4098481008585.9663 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-11-15", "window": { "start": { "local": "2099-11-15T10:52:18+03:30", "utc": "2099-11-15T07:22:18Z", "ms": 4098410537869.205 }, "end": { "local": "2099-11-15T11:40:18+03:30", "utc": "2099-11-15T08:10:18Z", "ms": 4098413417869.205 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-11-16", "window": { "start": { "local": "2099-11-16T10:52:29+03:30", "utc": "2099-11-16T07:22:29Z", "ms": 4098496948768.2627 }, "end": { "local": "2099-11-16T11:40:29+03:30", "utc": "2099-11-16T08:10:29Z", "ms": 4098499828768.2627 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:39 on Sun 15 Nov to 06:27 on Mon 16 Nov.", "fact": "2099-11-15T04:08:35Z → 2099-11-16T02:56:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 15th, 10:52–11:40 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 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11623 s" }, { "step": "ruling", "text": "Nāga Caturthī, Mashhad, 2099: Sunday 15 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-15", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Caturthī 2099 falls on Sunday 15 November. Caturthī runs from 07:39 on Sun 15 Nov to 06:27 on Mon 16 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/vinayaka-chaturthi?on=2099-11-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11623, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-11-15T07:38:35+03:30", "utc": "2099-11-15T04:08:35Z", "ms": 4098398915347.591 }, "end": { "local": "2099-11-16T06:26:49+03:30", "utc": "2099-11-16T02:56:49Z", "ms": 4098481008585.9663 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-15T07:38:35+03:30", "utc": "2099-11-15T04:08:35Z", "ms": 4098398915347.591 }, "end": { "local": "2099-11-16T06:26:49+03:30", "utc": "2099-11-16T02:56:49Z", "ms": 4098481008585.9663 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-11-15", "window": { "start": { "local": "2099-11-15T10:52:18+03:30", "utc": "2099-11-15T07:22:18Z", "ms": 4098410537869.205 }, "end": { "local": "2099-11-15T11:40:18+03:30", "utc": "2099-11-15T08:10:18Z", "ms": 4098413417869.205 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-11-16", "window": { "start": { "local": "2099-11-16T10:52:29+03:30", "utc": "2099-11-16T07:22:29Z", "ms": 4098496948768.2627 }, "end": { "local": "2099-11-16T11:40:29+03:30", "utc": "2099-11-16T08:10:29Z", "ms": 4098499828768.2627 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:39 on Sun 15 Nov to 06:27 on Mon 16 Nov.", "fact": "2099-11-15T04:08:35Z → 2099-11-16T02:56:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 15th, 10:52–11:40 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 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11623 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Sunday 15 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-15", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Sunday 15 November. Caturthī runs from 07:39 on Sun 15 Nov to 06:27 on Mon 16 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-11-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15511, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2099-11-17T06:04:41+03:30", "utc": "2099-11-17T02:34:41Z", "ms": 4098566080914.164 }, "end": { "local": "2099-11-18T06:34:22+03:30", "utc": "2099-11-18T03:04:22Z", "ms": 4098654262408.8696 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-17T06:04:41+03:30", "utc": "2099-11-17T02:34:41Z", "ms": 4098566080914.164 }, "end": { "local": "2099-11-18T06:34:22+03:30", "utc": "2099-11-18T03:04:22Z", "ms": 4098654262408.8696 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-11-17", "window": { "start": { "local": "2099-11-17T10:52:40+03:30", "utc": "2099-11-17T07:22:40Z", "ms": 4098583360495.7285 }, "end": { "local": "2099-11-17T11:40:40+03:30", "utc": "2099-11-17T08:10:40Z", "ms": 4098586240495.7285 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-11-18", "window": { "start": { "local": "2099-11-18T10:52:53+03:30", "utc": "2099-11-18T07:22:53Z", "ms": 4098669773044.132 }, "end": { "local": "2099-11-18T11:40:53+03:30", "utc": "2099-11-18T08:10:53Z", "ms": 4098672653044.132 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 06:05 on Tue 17 Nov to 06:34 on Wed 18 Nov.", "fact": "2099-11-17T02:34:41Z → 2099-11-18T03:04:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 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": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15511 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Mashhad, 2099: Tuesday 17 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-17", "confidence": "determinate" } ], "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Chhath) 2099 falls on Tuesday 17 November. Ṣaṣṭhī runs from 06:05 on Tue 17 Nov to 06:34 on Wed 18 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3590, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2099-11-19T07:53:16+03:30", "utc": "2099-11-19T04:23:16Z", "ms": 4098745395782.019 }, "end": { "local": "2099-11-20T09:53:31+03:30", "utc": "2099-11-20T06:23:31Z", "ms": 4098839011030.378 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-19T07:53:16+03:30", "utc": "2099-11-19T04:23:16Z", "ms": 4098745395782.019 }, "end": { "local": "2099-11-20T09:53:31+03:30", "utc": "2099-11-20T06:23:31Z", "ms": 4098839011030.378 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-11-19", "window": { "start": { "local": "2099-11-19T10:53:06+03:30", "utc": "2099-11-19T07:23:06Z", "ms": 4098756186405.8193 }, "end": { "local": "2099-11-19T11:41:06+03:30", "utc": "2099-11-19T08:11:06Z", "ms": 4098759066405.8193 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-11-20", "window": { "start": { "local": "2099-11-20T10:53:21+03:30", "utc": "2099-11-20T07:23:21Z", "ms": 4098842600572.799 }, "end": { "local": "2099-11-20T11:41:21+03:30", "utc": "2099-11-20T08:11:21Z", "ms": 4098845480572.799 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 07:53 on Thu 19 Nov to 09:54 on Fri 20 Nov.", "fact": "2099-11-19T04:23:16Z → 2099-11-20T06:23:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 on the 19th, 10:53–11:41 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3590 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Mashhad, 2099: Thursday 19 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gopashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Gopastami, Gosthastami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-19", "confidence": "determinate" } ], "quote": "In Mashhad, Gopāṣṭamī 2099 falls on Thursday 19 November. Aṣṭamī runs from 07:53 on Thu 19 Nov to 09:54 on Fri 20 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2469, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2099-11-20T09:53:31+03:30", "utc": "2099-11-20T06:23:31Z", "ms": 4098839011030.378 }, "end": { "local": "2099-11-21T12:22:44+03:30", "utc": "2099-11-21T08:52:44Z", "ms": 4098934364409.883 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-20T09:53:31+03:30", "utc": "2099-11-20T06:23:31Z", "ms": 4098839011030.378 }, "end": { "local": "2099-11-21T12:22:44+03:30", "utc": "2099-11-21T08:52:44Z", "ms": 4098934364409.883 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-11-20", "window": { "start": { "local": "2099-11-20T10:53:21+03:30", "utc": "2099-11-20T07:23:21Z", "ms": 4098842600572.799 }, "end": { "local": "2099-11-20T11:41:21+03:30", "utc": "2099-11-20T08:11:21Z", "ms": 4098845480572.799 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-11-21", "window": { "start": { "local": "2099-11-21T10:53:36+03:30", "utc": "2099-11-21T07:23:36Z", "ms": 4098929015536.5986 }, "end": { "local": "2099-11-21T11:41:36+03:30", "utc": "2099-11-21T08:11:36Z", "ms": 4098931895536.5986 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Navamī runs from 09:54 on Fri 20 Nov to 12:23 on Sat 21 Nov.", "fact": "2099-11-20T06:23:31Z → 2099-11-21T08:52:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 on the 20th, 10:54–11:42 on the 21st.", "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 20th and 48 of 48 on the 21st.", "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 2469 s" }, { "step": "ruling", "text": "Durgā Navamī, Mashhad, 2099: Friday 20 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-20", "confidence": "boundary" } ], "quote": "In Mashhad, Durgā Navamī 2099 falls on Friday 20 November. Navamī runs from 09:54 on Fri 20 Nov to 12:23 on Sat 21 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/2099/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/2099/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1032, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2099-11-20T09:53:31+03:30", "utc": "2099-11-20T06:23:31Z", "ms": 4098839011030.378 }, "end": { "local": "2099-11-21T12:22:44+03:30", "utc": "2099-11-21T08:52:44Z", "ms": 4098934364409.883 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-20T09:53:31+03:30", "utc": "2099-11-20T06:23:31Z", "ms": 4098839011030.378 }, "end": { "local": "2099-11-21T12:22:44+03:30", "utc": "2099-11-21T08:52:44Z", "ms": 4098934364409.883 } }, "kaala": "purvahna", "days": [ { "local_date": "2099-11-20", "window": { "start": { "local": "2099-11-20T06:14:16+03:30", "utc": "2099-11-20T02:44:16Z", "ms": 4098825856123.224 }, "end": { "local": "2099-11-20T09:36:19+03:30", "utc": "2099-11-20T06:06:19Z", "ms": 4098837979089.607 } }, "covered_min": 0, "window_min": 202, "qualifies": false }, { "local_date": "2099-11-21", "window": { "start": { "local": "2099-11-21T06:15:16+03:30", "utc": "2099-11-21T02:45:16Z", "ms": 4098912316049.006 }, "end": { "local": "2099-11-21T09:36:49+03:30", "utc": "2099-11-21T06:06:49Z", "ms": 4098924409040.7344 } }, "covered_min": 202, "window_min": 202, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 09:54 on Fri 20 Nov to 12:23 on Sat 21 Nov.", "fact": "2099-11-20T06:23:31Z → 2099-11-21T08:52:44Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:14–09:36 on the 20th, 06:15–09:37 on the 21st.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 0 of 202 minutes on the 20th and 202 of 202 on the 21st.", "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 1032 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Mashhad, 2099: Saturday 21 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": "2099-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-21", "confidence": "determinate" } ], "quote": "In Mashhad, Akṣaya Navamī (Amla Navami) 2099 falls on Saturday 21 November. Navamī runs from 09:54 on Fri 20 Nov to 12:23 on Sat 21 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-11-23", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31772, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-11-22T15:05:48+03:30", "utc": "2099-11-22T11:35:48Z", "ms": 4099030547515.113 }, "end": { "local": "2099-11-23T17:47:20+03:30", "utc": "2099-11-23T14:17:20Z", "ms": 4099126639535.5293 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-22T15:05:48+03:30", "utc": "2099-11-22T11:35:48Z", "ms": 4099030547515.113 }, "end": { "local": "2099-11-23T17:47:20+03:30", "utc": "2099-11-23T14:17:20Z", "ms": 4099126639535.5293 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-11-22", "window": { "start": { "local": "2099-11-22T06:16:16+03:30", "utc": "2099-11-22T02:46:16Z", "ms": 4098998775675.2188 }, "end": { "local": "2099-11-22T06:16:16+03:30", "utc": "2099-11-22T02:46:16Z", "ms": 4098998775675.2188 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-11-23", "window": { "start": { "local": "2099-11-23T06:17:15+03:30", "utc": "2099-11-23T02:47:15Z", "ms": 4099085234962.3716 }, "end": { "local": "2099-11-23T06:17:15+03:30", "utc": "2099-11-23T02:47:15Z", "ms": 4099085234962.3716 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:06 on Sun 22 Nov to 17:47 on Mon 23 Nov.", "fact": "2099-11-22T11:35:48Z → 2099-11-23T14:17:20Z" }, { "step": "kaala", "text": "Sunrise is at 06:16 on the 22nd and 06:17 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 22nd and is on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31772 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Mashhad, 2099: Monday 23 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": "2099-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-23", "confidence": "determinate" } ], "quote": "In Mashhad, Prabodhinī Ekādaśī 2099 falls on Monday 23 November. Ekādaśī runs from 15:06 on Sun 22 Nov to 17:47 on Mon 23 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-11-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-11-25", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7412, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-11-24T20:14:13+03:30", "utc": "2099-11-24T16:44:13Z", "ms": 4099221852868.5576 }, "end": { "local": "2099-11-25T22:17:07+03:30", "utc": "2099-11-25T18:47:07Z", "ms": 4099315627383.883 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-24T20:14:13+03:30", "utc": "2099-11-24T16:44:13Z", "ms": 4099221852868.5576 }, "end": { "local": "2099-11-25T22:17:07+03:30", "utc": "2099-11-25T18:47:07Z", "ms": 4099315627383.883 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-11-24", "window": { "start": { "local": "2099-11-24T16:18:36+03:30", "utc": "2099-11-24T12:48:36Z", "ms": 4099207716359.848 }, "end": { "local": "2099-11-24T18:10:41+03:30", "utc": "2099-11-24T14:40:41Z", "ms": 4099214441159.7837 } }, "covered_min": 0, "window_min": 112, "qualifies": false }, { "local_date": "2099-11-25", "window": { "start": { "local": "2099-11-25T16:18:14+03:30", "utc": "2099-11-25T12:48:14Z", "ms": 4099294093979.142 }, "end": { "local": "2099-11-25T18:10:30+03:30", "utc": "2099-11-25T14:40:30Z", "ms": 4099300829500.336 } }, "covered_min": 112, "window_min": 112, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:14 on Tue 24 Nov to 22:17 on Wed 25 Nov.", "fact": "2099-11-24T16:44:13Z → 2099-11-25T18:47:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:19–18:11 on the 24th, 16:18–18:10 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 112 minutes on the 24th and 112 of 112 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7412 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Wednesday 25 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": "2099-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-25", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Wednesday 25 November. Trayodaśī runs from 20:14 on Tue 24 Nov to 22:17 on Wed 25 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-11-25", "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/2099/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36086, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-11-26T23:50:56+03:30", "utc": "2099-11-26T20:20:56Z", "ms": 4099407656407.7627 }, "end": { "local": "2099-11-28T00:54:16+03:30", "utc": "2099-11-27T21:24:16Z", "ms": 4099497855964.002 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-26T23:50:56+03:30", "utc": "2099-11-26T20:20:56Z", "ms": 4099407656407.7627 }, "end": { "local": "2099-11-28T00:54:16+03:30", "utc": "2099-11-27T21:24:16Z", "ms": 4099497855964.002 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-11-27", "window": { "start": { "local": "2099-11-27T10:55:21+03:30", "utc": "2099-11-27T07:25:21Z", "ms": 4099447521499.8516 }, "end": { "local": "2099-11-27T11:43:21+03:30", "utc": "2099-11-27T08:13:21Z", "ms": 4099450401499.8516 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-11-28", "window": { "start": { "local": "2099-11-28T10:55:42+03:30", "utc": "2099-11-28T07:25:42Z", "ms": 4099533941750.804 }, "end": { "local": "2099-11-28T11:43:42+03:30", "utc": "2099-11-28T08:13:42Z", "ms": 4099536821750.804 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:51 on Thu 26 Nov to 00:54 on Sat 28 Nov.", "fact": "2099-11-26T20:20:56Z → 2099-11-27T21:24:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:55–11:43 on the 27th, 10:56–11:44 on the 28th.", "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 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36086 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Mashhad, 2099: Friday 27 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kartiki-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-27", "confidence": "determinate" } ], "quote": "In Mashhad, Kārtikī Pūrṇimā 2099 falls on Friday 27 November. Pūrṇimā runs from 23:51 on Thu 26 Nov to 00:54 on Sat 28 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 446, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-11-26T23:50:56+03:30", "utc": "2099-11-26T20:20:56Z", "ms": 4099407656407.7627 }, "end": { "local": "2099-11-28T00:54:16+03:30", "utc": "2099-11-27T21:24:16Z", "ms": 4099497855964.002 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2099-11-26T23:50:56+03:30", "utc": "2099-11-26T20:20:56Z", "ms": 4099407656407.7627 }, "end": { "local": "2099-11-28T00:54:16+03:30", "utc": "2099-11-27T21:24:16Z", "ms": 4099497855964.002 } }, "kaala": "nishita", "days": [ { "local_date": "2099-11-26", "window": { "start": { "local": "2099-11-26T22:55:31+03:30", "utc": "2099-11-26T19:25:31Z", "ms": 4099404330732.01 }, "end": { "local": "2099-11-26T23:43:31+03:30", "utc": "2099-11-26T20:13:31Z", "ms": 4099407210732.01 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-11-27", "window": { "start": { "local": "2099-11-27T22:55:50+03:30", "utc": "2099-11-27T19:25:50Z", "ms": 4099490749992.112 }, "end": { "local": "2099-11-27T23:43:50+03:30", "utc": "2099-11-27T20:13:50Z", "ms": 4099493629992.112 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:51 on Thu 26 Nov to 00:54 on Sat 28 Nov.", "fact": "2099-11-26T20:20:56Z → 2099-11-27T21:24:16Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:56–23:44 on the 26th, 22:56–23:44 on the 27th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 446 s" }, { "step": "ruling", "text": "Rāsayātrā, Mashhad, 2099: Friday 27 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": "2099-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-11-27", "confidence": "boundary" } ], "quote": "In Mashhad, Rāsayātrā 2099 falls on Friday 27 November. Pūrṇimā runs from 23:51 on Thu 26 Nov to 00:54 on Sat 28 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-12-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19403, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-12-01T01:20:22+03:30", "utc": "2099-11-30T21:50:22Z", "ms": 4099758621844.675 }, "end": { "local": "2099-12-02T00:44:15+03:30", "utc": "2099-12-01T21:14:15Z", "ms": 4099842855221.2363 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-01T01:20:22+03:30", "utc": "2099-11-30T21:50:22Z", "ms": 4099758621844.675 }, "end": { "local": "2099-12-02T00:44:15+03:30", "utc": "2099-12-01T21:14:15Z", "ms": 4099842855221.2363 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-11-30", "window": { "start": { "local": "2099-11-30T18:14:31+03:30", "utc": "2099-11-30T14:44:31Z", "ms": 4099733071089.7407 }, "end": { "local": "2099-11-30T18:14:31+03:30", "utc": "2099-11-30T14:44:31Z", "ms": 4099733071089.7407 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-12-01", "window": { "start": { "local": "2099-12-01T19:20:52+03:30", "utc": "2099-12-01T15:50:52Z", "ms": 4099823452234.6074 }, "end": { "local": "2099-12-01T19:20:52+03:30", "utc": "2099-12-01T15:50:52Z", "ms": 4099823452234.6074 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:20 on Tue 1 Dec to 00:44 on Wed 2 Dec.", "fact": "2099-11-30T21:50:22Z → 2099-12-01T21:14:15Z" }, { "step": "kaala", "text": "Moonrise is at 18:15 on the 30th and 19:21 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 30th and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19403 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Tuesday 1 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": "2099-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-01", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Tuesday 1 December. Caturthī runs from 01:20 on Tue 1 Dec to 00:44 on Wed 2 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-12-01", "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/2099/ekadashi?on=2099-12-08", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21797, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-12-07T15:02:59+03:30", "utc": "2099-12-07T11:32:59Z", "ms": 4100326379424.022 }, "end": { "local": "2099-12-08T12:34:13+03:30", "utc": "2099-12-08T09:04:13Z", "ms": 4100403852522.051 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-07T15:02:59+03:30", "utc": "2099-12-07T11:32:59Z", "ms": 4100326379424.022 }, "end": { "local": "2099-12-08T12:34:13+03:30", "utc": "2099-12-08T09:04:13Z", "ms": 4100403852522.051 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-12-07", "window": { "start": { "local": "2099-12-07T06:30:06+03:30", "utc": "2099-12-07T03:00:06Z", "ms": 4100295606049.5957 }, "end": { "local": "2099-12-07T06:30:06+03:30", "utc": "2099-12-07T03:00:06Z", "ms": 4100295606049.5957 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-12-08", "window": { "start": { "local": "2099-12-08T06:30:55+03:30", "utc": "2099-12-08T03:00:55Z", "ms": 4100382055121.258 }, "end": { "local": "2099-12-08T06:30:55+03:30", "utc": "2099-12-08T03:00:55Z", "ms": 4100382055121.258 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:03 on Mon 7 Dec to 12:34 on Tue 8 Dec.", "fact": "2099-12-07T11:32:59Z → 2099-12-08T09:04:13Z" }, { "step": "kaala", "text": "Sunrise is at 06:30 on the 7th and 06:31 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 21797 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Mashhad, 2099: Tuesday 8 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": "2099-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-08", "confidence": "determinate" } ], "quote": "In Mashhad, Utpannā Ekādaśī 2099 falls on Tuesday 8 December. Ekādaśī runs from 15:03 on Mon 7 Dec to 12:34 on Tue 8 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-12-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/pradosha-vrata?on=2099-12-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22678, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-12-09T09:58:33+03:30", "utc": "2099-12-09T06:28:33Z", "ms": 4100480912764.037 }, "end": { "local": "2099-12-10T07:22:25+03:30", "utc": "2099-12-10T03:52:25Z", "ms": 4100557945474.855 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-09T09:58:33+03:30", "utc": "2099-12-09T06:28:33Z", "ms": 4100480912764.037 }, "end": { "local": "2099-12-10T07:22:25+03:30", "utc": "2099-12-10T03:52:25Z", "ms": 4100557945474.855 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-12-09", "window": { "start": { "local": "2099-12-09T16:16:31+03:30", "utc": "2099-12-09T12:46:31Z", "ms": 4100503591111.9595 }, "end": { "local": "2099-12-09T18:10:39+03:30", "utc": "2099-12-09T14:40:39Z", "ms": 4100510438966.8853 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "2099-12-10", "window": { "start": { "local": "2099-12-10T16:16:39+03:30", "utc": "2099-12-10T12:46:39Z", "ms": 4100589999038.66 }, "end": { "local": "2099-12-10T18:10:52+03:30", "utc": "2099-12-10T14:40:52Z", "ms": 4100596851933.2734 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:59 on Wed 9 Dec to 07:22 on Thu 10 Dec.", "fact": "2099-12-09T06:28:33Z → 2099-12-10T03:52:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:17–18:11 on the 9th, 16:17–18:11 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 114 of 114 minutes on the 9th and 0 of 114 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 22678 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2099: Wednesday 9 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": "2099-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-09", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2099 falls on Wednesday 9 December. Trayodaśī runs from 09:59 on Wed 9 Dec to 07:22 on Thu 10 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/2099/pradosha-vrata?on=2099-12-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/2099/shivaratri?on=2099-12-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18283, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2099-12-10T07:22:25+03:30", "utc": "2099-12-10T03:52:25Z", "ms": 4100557945474.855 }, "end": { "local": "2099-12-11T04:53:40+03:30", "utc": "2099-12-11T01:23:40Z", "ms": 4100635420473.581 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-10T07:22:25+03:30", "utc": "2099-12-10T03:52:25Z", "ms": 4100557945474.855 }, "end": { "local": "2099-12-11T04:53:40+03:30", "utc": "2099-12-11T01:23:40Z", "ms": 4100635420473.581 } }, "kaala": "nishita", "days": [ { "local_date": "2099-12-09", "window": { "start": { "local": "2099-12-09T23:00:31+03:30", "utc": "2099-12-09T19:30:31Z", "ms": 4100527830567.9307 }, "end": { "local": "2099-12-09T23:48:31+03:30", "utc": "2099-12-09T20:18:31Z", "ms": 4100530710567.9307 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-12-10", "window": { "start": { "local": "2099-12-10T23:00:57+03:30", "utc": "2099-12-10T19:30:57Z", "ms": 4100614257393.459 }, "end": { "local": "2099-12-10T23:48:57+03:30", "utc": "2099-12-10T20:18:57Z", "ms": 4100617137393.459 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:22 on Thu 10 Dec to 04:54 on Fri 11 Dec.", "fact": "2099-12-10T03:52:25Z → 2099-12-11T01:23:40Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:01–23:49 on the 9th, 23:01–23:49 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 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18283 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 2099: Thursday 10 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": "2099-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-10", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 2099 falls on Thursday 10 December. Caturdaśī runs from 07:22 on Thu 10 Dec to 04:54 on Fri 11 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/2099/shivaratri?on=2099-12-10", "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/2099/vinayaka-chaturthi?on=2099-12-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40777, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-12-14T23:10:05+03:30", "utc": "2099-12-14T19:40:05Z", "ms": 4100960404989.684 }, "end": { "local": "2099-12-15T23:25:39+03:30", "utc": "2099-12-15T19:55:39Z", "ms": 4101047738974.4614 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-14T23:10:05+03:30", "utc": "2099-12-14T19:40:05Z", "ms": 4100960404989.684 }, "end": { "local": "2099-12-15T23:25:39+03:30", "utc": "2099-12-15T19:55:39Z", "ms": 4101047738974.4614 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-12-14", "window": { "start": { "local": "2099-12-14T11:02:28+03:30", "utc": "2099-12-14T07:32:28Z", "ms": 4100916748002.421 }, "end": { "local": "2099-12-14T11:50:28+03:30", "utc": "2099-12-14T08:20:28Z", "ms": 4100919628002.421 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-12-15", "window": { "start": { "local": "2099-12-15T11:02:57+03:30", "utc": "2099-12-15T07:32:57Z", "ms": 4101003177144.9404 }, "end": { "local": "2099-12-15T11:50:57+03:30", "utc": "2099-12-15T08:20:57Z", "ms": 4101006057144.9404 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:10 on Mon 14 Dec to 23:26 on Tue 15 Dec.", "fact": "2099-12-14T19:40:05Z → 2099-12-15T19:55:39Z" }, { "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": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40777 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 2099: Tuesday 15 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-15", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 2099 falls on Tuesday 15 December. Caturthī runs from 23:10 on Mon 14 Dec to 23:26 on Tue 15 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/vinayaka-chaturthi?on=2099-12-15", "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/2099/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38111, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2099-12-15T23:25:39+03:30", "utc": "2099-12-15T19:55:39Z", "ms": 4101047738974.4614 }, "end": { "local": "2099-12-17T00:28:45+03:30", "utc": "2099-12-16T20:58:45Z", "ms": 4101137925074.3286 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-15T23:25:39+03:30", "utc": "2099-12-15T19:55:39Z", "ms": 4101047738974.4614 }, "end": { "local": "2099-12-17T00:28:45+03:30", "utc": "2099-12-16T20:58:45Z", "ms": 4101137925074.3286 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-12-16", "window": { "start": { "local": "2099-12-16T11:03:27+03:30", "utc": "2099-12-16T07:33:27Z", "ms": 4101089606524.4814 }, "end": { "local": "2099-12-16T11:51:27+03:30", "utc": "2099-12-16T08:21:27Z", "ms": 4101092486524.4814 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-12-17", "window": { "start": { "local": "2099-12-17T11:03:56+03:30", "utc": "2099-12-17T07:33:56Z", "ms": 4101176036105.368 }, "end": { "local": "2099-12-17T11:51:56+03:30", "utc": "2099-12-17T08:21:56Z", "ms": 4101178916105.368 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 23:26 on Tue 15 Dec to 00:29 on Thu 17 Dec.", "fact": "2099-12-15T19:55:39Z → 2099-12-16T20:58:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:03–11:51 on the 16th, 11:04–11:52 on the 17th.", "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 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38111 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Mashhad, 2099: Wednesday 16 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": "2099-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-16", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Pañcamī (Mārgaśīrṣa) 2099 falls on Wednesday 16 December. Pañcamī runs from 23:26 on Tue 15 Dec to 00:29 on Thu 17 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31753, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2099-12-17T00:28:45+03:30", "utc": "2099-12-16T20:58:45Z", "ms": 4101137925074.3286 }, "end": { "local": "2099-12-18T02:15:13+03:30", "utc": "2099-12-17T22:45:13Z", "ms": 4101230712973.9224 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-17T00:28:45+03:30", "utc": "2099-12-16T20:58:45Z", "ms": 4101137925074.3286 }, "end": { "local": "2099-12-18T02:15:13+03:30", "utc": "2099-12-17T22:45:13Z", "ms": 4101230712973.9224 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-12-17", "window": { "start": { "local": "2099-12-17T11:03:56+03:30", "utc": "2099-12-17T07:33:56Z", "ms": 4101176036105.368 }, "end": { "local": "2099-12-17T11:51:56+03:30", "utc": "2099-12-17T08:21:56Z", "ms": 4101178916105.368 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-12-18", "window": { "start": { "local": "2099-12-18T11:04:26+03:30", "utc": "2099-12-18T07:34:26Z", "ms": 4101262465852.414 }, "end": { "local": "2099-12-18T11:52:26+03:30", "utc": "2099-12-18T08:22:26Z", "ms": 4101265345852.414 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 00:29 on Thu 17 Dec to 02:15 on Fri 18 Dec.", "fact": "2099-12-16T20:58:45Z → 2099-12-17T22:45:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 17th, 11:04–11:52 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31753 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Mashhad, 2099: Thursday 17 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": "2099-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-17", "confidence": "determinate" } ], "quote": "In Mashhad, Campā Ṣaṣṭhī 2099 falls on Thursday 17 December. Ṣaṣṭhī runs from 00:29 on Thu 17 Dec to 02:15 on Fri 18 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31753, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2099-12-17T00:28:45+03:30", "utc": "2099-12-16T20:58:45Z", "ms": 4101137925074.3286 }, "end": { "local": "2099-12-18T02:15:13+03:30", "utc": "2099-12-17T22:45:13Z", "ms": 4101230712973.9224 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-17T00:28:45+03:30", "utc": "2099-12-16T20:58:45Z", "ms": 4101137925074.3286 }, "end": { "local": "2099-12-18T02:15:13+03:30", "utc": "2099-12-17T22:45:13Z", "ms": 4101230712973.9224 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-12-17", "window": { "start": { "local": "2099-12-17T11:03:56+03:30", "utc": "2099-12-17T07:33:56Z", "ms": 4101176036105.368 }, "end": { "local": "2099-12-17T11:51:56+03:30", "utc": "2099-12-17T08:21:56Z", "ms": 4101178916105.368 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-12-18", "window": { "start": { "local": "2099-12-18T11:04:26+03:30", "utc": "2099-12-18T07:34:26Z", "ms": 4101262465852.414 }, "end": { "local": "2099-12-18T11:52:26+03:30", "utc": "2099-12-18T08:22:26Z", "ms": 4101265345852.414 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 00:29 on Thu 17 Dec to 02:15 on Fri 18 Dec.", "fact": "2099-12-16T20:58:45Z → 2099-12-17T22:45:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 17th, 11:04–11:52 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31753 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Mashhad, 2099: Thursday 17 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": "2099-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-17", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Ṣaṣṭhī 2099 falls on Thursday 17 December. Ṣaṣṭhī runs from 00:29 on Thu 17 Dec to 02:15 on Fri 18 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23370, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2099-12-18T02:15:13+03:30", "utc": "2099-12-17T22:45:13Z", "ms": 4101230712973.9224 }, "end": { "local": "2099-12-19T04:35:25+03:30", "utc": "2099-12-19T01:05:25Z", "ms": 4101325525235.5405 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-18T02:15:13+03:30", "utc": "2099-12-17T22:45:13Z", "ms": 4101230712973.9224 }, "end": { "local": "2099-12-19T04:35:25+03:30", "utc": "2099-12-19T01:05:25Z", "ms": 4101325525235.5405 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-12-18", "window": { "start": { "local": "2099-12-18T11:04:26+03:30", "utc": "2099-12-18T07:34:26Z", "ms": 4101262465852.414 }, "end": { "local": "2099-12-18T11:52:26+03:30", "utc": "2099-12-18T08:22:26Z", "ms": 4101265345852.414 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2099-12-19", "window": { "start": { "local": "2099-12-19T11:04:56+03:30", "utc": "2099-12-19T07:34:56Z", "ms": 4101348895730.8765 }, "end": { "local": "2099-12-19T11:52:56+03:30", "utc": "2099-12-19T08:22:56Z", "ms": 4101351775730.8765 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:15 on Fri 18 Dec to 04:35 on Sat 19 Dec.", "fact": "2099-12-17T22:45:13Z → 2099-12-19T01:05:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 18th, 11:05–11:53 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23370 s" }, { "step": "ruling", "text": "Mitra Saptamī, Mashhad, 2099: Friday 18 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": "2099-12-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-18", "confidence": "determinate" } ], "quote": "In Mashhad, Mitra Saptamī 2099 falls on Friday 18 December. Saptamī runs from 02:15 on Fri 18 Dec to 04:35 on Sat 19 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/ekadashi?on=2099-12-23", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20786, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2099-12-22T12:26:33+03:30", "utc": "2099-12-22T08:56:33Z", "ms": 4101612993179.3193 }, "end": { "local": "2099-12-23T14:28:45+03:30", "utc": "2099-12-23T10:58:45Z", "ms": 4101706725291.5337 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-22T12:26:33+03:30", "utc": "2099-12-22T08:56:33Z", "ms": 4101612993179.3193 }, "end": { "local": "2099-12-23T14:28:45+03:30", "utc": "2099-12-23T10:58:45Z", "ms": 4101706725291.5337 } }, "kaala": "sunrise", "days": [ { "local_date": "2099-12-22", "window": { "start": { "local": "2099-12-22T06:40:07+03:30", "utc": "2099-12-22T03:10:07Z", "ms": 4101592207126.5938 }, "end": { "local": "2099-12-22T06:40:07+03:30", "utc": "2099-12-22T03:10:07Z", "ms": 4101592207126.5938 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2099-12-23", "window": { "start": { "local": "2099-12-23T06:40:35+03:30", "utc": "2099-12-23T03:10:35Z", "ms": 4101678635062.6235 }, "end": { "local": "2099-12-23T06:40:35+03:30", "utc": "2099-12-23T03:10:35Z", "ms": 4101678635062.6235 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:27 on Tue 22 Dec to 14:29 on Wed 23 Dec.", "fact": "2099-12-22T08:56:33Z → 2099-12-23T10:58:45Z" }, { "step": "kaala", "text": "Sunrise is at 06:40 on the 22nd and 06:41 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 22nd and is on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20786 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Mashhad, 2099: Wednesday 23 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": "2099-12-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-23", "confidence": "determinate" } ], "quote": "In Mashhad, Mokṣadā Ekādaśī 2099 falls on Wednesday 23 December. Ekādaśī runs from 12:27 on Tue 22 Dec to 14:29 on Wed 23 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/ekadashi?on=2099-12-23", "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/2099/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9229, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2099-12-23T14:28:45+03:30", "utc": "2099-12-23T10:58:45Z", "ms": 4101706725291.5337 }, "end": { "local": "2099-12-24T15:55:42+03:30", "utc": "2099-12-24T12:25:42Z", "ms": 4101798342411.3755 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-23T14:28:45+03:30", "utc": "2099-12-23T10:58:45Z", "ms": 4101706725291.5337 }, "end": { "local": "2099-12-24T15:55:42+03:30", "utc": "2099-12-24T12:25:42Z", "ms": 4101798342411.3755 } }, "kaala": "madhyahna", "days": [ { "local_date": "2099-12-23", "window": { "start": { "local": "2099-12-23T11:06:56+03:30", "utc": "2099-12-23T07:36:56Z", "ms": 4101694615878.259 }, "end": { "local": "2099-12-23T11:54:56+03:30", "utc": "2099-12-23T08:24:56Z", "ms": 4101697495878.259 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2099-12-24", "window": { "start": { "local": "2099-12-24T11:07:26+03:30", "utc": "2099-12-24T07:37:26Z", "ms": 4101781045907.331 }, "end": { "local": "2099-12-24T11:55:26+03:30", "utc": "2099-12-24T08:25:26Z", "ms": 4101783925907.331 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:29 on Wed 23 Dec to 15:56 on Thu 24 Dec.", "fact": "2099-12-23T10:58:45Z → 2099-12-24T12:25:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 23rd, 11:07–11:55 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9229 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Mashhad, 2099: Thursday 24 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akhanda-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2099-12-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-24", "confidence": "determinate" } ], "quote": "In Mashhad, Akhaṇḍa Dvādaśī 2099 falls on Thursday 24 December. Dvādaśī runs from 14:29 on Wed 23 Dec to 15:56 on Thu 24 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/pradosha-vrata?on=2099-12-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-24", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1290, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2099-12-24T15:55:42+03:30", "utc": "2099-12-24T12:25:42Z", "ms": 4101798342411.3755 }, "end": { "local": "2099-12-25T16:43:56+03:30", "utc": "2099-12-25T13:13:56Z", "ms": 4101887635704.3877 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-24T15:55:42+03:30", "utc": "2099-12-24T12:25:42Z", "ms": 4101798342411.3755 }, "end": { "local": "2099-12-25T16:43:56+03:30", "utc": "2099-12-25T13:13:56Z", "ms": 4101887635704.3877 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-12-24", "window": { "start": { "local": "2099-12-24T16:21:51+03:30", "utc": "2099-12-24T12:51:51Z", "ms": 4101799910548.4956 }, "end": { "local": "2099-12-24T18:16:27+03:30", "utc": "2099-12-24T14:46:27Z", "ms": 4101806787236.6035 } }, "covered_min": 115, "window_min": 115, "qualifies": true }, { "local_date": "2099-12-25", "window": { "start": { "local": "2099-12-25T16:22:26+03:30", "utc": "2099-12-25T12:52:26Z", "ms": 4101886346028.3433 }, "end": { "local": "2099-12-25T18:17:01+03:30", "utc": "2099-12-25T14:47:01Z", "ms": 4101893221006.7534 } }, "covered_min": 21, "window_min": 115, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:56 on Thu 24 Dec to 16:44 on Fri 25 Dec.", "fact": "2099-12-24T12:25:42Z → 2099-12-25T13:13:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:22–18:16 on the 24th, 16:22–18:17 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 115 of 115 minutes on the 24th and 21 of 115 on the 25th.", "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 1290 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 2099: Thursday 24 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": "2099-12-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-24", "confidence": "boundary" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 2099 falls on Thursday 24 December. Trayodaśī runs from 15:56 on Thu 24 Dec to 16:44 on Fri 25 Dec and covers all of pradoṣa that evening. It also reaches the next evening for 21 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/2099/pradosha-vrata?on=2099-12-24", "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/2099/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-26", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 410, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2099-12-26T16:54:14+03:30", "utc": "2099-12-26T13:24:14Z", "ms": 4101974654470.585 }, "end": { "local": "2099-12-27T16:30:32+03:30", "utc": "2099-12-27T13:00:32Z", "ms": 4102059632068.23 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-26T16:54:14+03:30", "utc": "2099-12-26T13:24:14Z", "ms": 4101974654470.585 }, "end": { "local": "2099-12-27T16:30:32+03:30", "utc": "2099-12-27T13:00:32Z", "ms": 4102059632068.23 } }, "kaala": "pradosha", "days": [ { "local_date": "2099-12-26", "window": { "start": { "local": "2099-12-26T16:23:03+03:30", "utc": "2099-12-26T12:53:03Z", "ms": 4101972783097.0366 }, "end": { "local": "2099-12-26T18:17:36+03:30", "utc": "2099-12-26T14:47:36Z", "ms": 4101979655912.6426 } }, "covered_min": 83, "window_min": 115, "qualifies": true }, { "local_date": "2099-12-27", "window": { "start": { "local": "2099-12-27T16:23:42+03:30", "utc": "2099-12-27T12:53:42Z", "ms": 4102059221717.5303 }, "end": { "local": "2099-12-27T18:18:12+03:30", "utc": "2099-12-27T14:48:12Z", "ms": 4102066091919.3086 } }, "covered_min": 7, "window_min": 115, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:54 on Sat 26 Dec to 16:31 on Sun 27 Dec.", "fact": "2099-12-26T13:24:14Z → 2099-12-27T13:00:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:23–18:18 on the 26th, 16:24–18:18 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 83 of 115 minutes on the 26th and 7 of 115 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 410 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Mashhad, 2099: Saturday 26 December.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "2099-12-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-26", "confidence": "boundary" } ], "quote": "In Mashhad, Dattātreyotpatti (Datta Jayanti) 2099 falls on Saturday 26 December. Pūrṇimā runs from 16:54 on Sat 26 Dec to 16:31 on Sun 27 Dec and covers 83 of 115 minutes of pradoṣa that evening. It also reaches the next evening for 7 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/2099/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/2099/sankashta-chaturthi?on=2099-12-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 2099, "local_date": "2099-12-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23824, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2099-12-30T12:53:50+03:30", "utc": "2099-12-30T09:23:50Z", "ms": 4102305830284.682 }, "end": { "local": "2099-12-31T11:12:21+03:30", "utc": "2099-12-31T07:42:21Z", "ms": 4102386141215.0664 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2099-12-30T12:53:50+03:30", "utc": "2099-12-30T09:23:50Z", "ms": 4102305830284.682 }, "end": { "local": "2099-12-31T11:12:21+03:30", "utc": "2099-12-31T07:42:21Z", "ms": 4102386141215.0664 } }, "kaala": "moonrise", "days": [ { "local_date": "2099-12-30", "window": { "start": { "local": "2099-12-30T19:30:54+03:30", "utc": "2099-12-30T16:00:54Z", "ms": 4102329653951.86 }, "end": { "local": "2099-12-30T19:30:54+03:30", "utc": "2099-12-30T16:00:54Z", "ms": 4102329653951.86 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2099-12-31", "window": { "start": { "local": "2099-12-31T20:41:26+03:30", "utc": "2099-12-31T17:11:26Z", "ms": 4102420286094.785 }, "end": { "local": "2099-12-31T20:41:26+03:30", "utc": "2099-12-31T17:11:26Z", "ms": 4102420286094.785 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:54 on Wed 30 Dec to 11:12 on Thu 31 Dec.", "fact": "2099-12-30T09:23:50Z → 2099-12-31T07:42:21Z" }, { "step": "kaala", "text": "Moonrise is at 19:31 on the 30th and 20:41 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 23824 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 2099: Wednesday 30 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": "2099-12-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2099-12-30", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2099 falls on Wednesday 30 December. Caturthī runs from 12:54 on Wed 30 Dec to 11:12 on Thu 31 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/2099/sankashta-chaturthi?on=2099-12-30", "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" } }