{ "id": "/valencia/festivals/2038", "place": { "id": "3625549", "slug": "valencia", "name": "Valencia", "region": "Carabobo, Venezuela", "country": "VE", "lat": 10.16153, "lon": -68.00044, "elevation_m": 547, "tz": "America/Caracas" }, "year": 2038, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/valencia/festivals/2038/ekadashi?on=2038-01-01", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28866, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2037-12-31T16:48:23-04:00", "utc": "2037-12-31T20:48:23Z", "ms": 2145905303227.7954 }, "end": { "local": "2038-01-01T14:50:38-04:00", "utc": "2038-01-01T18:50:38Z", "ms": 2145984638172.1147 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2037-12-31T16:48:23-04:00", "utc": "2037-12-31T20:48:23Z", "ms": 2145905303227.7954 }, "end": { "local": "2038-01-01T14:50:38-04:00", "utc": "2038-01-01T18:50:38Z", "ms": 2145984638172.1147 } }, "kaala": "sunrise", "days": [ { "local_date": "2037-12-31", "window": { "start": { "local": "2037-12-31T06:49:08-04:00", "utc": "2037-12-31T10:49:08Z", "ms": 2145869347530.1372 }, "end": { "local": "2037-12-31T06:49:08-04:00", "utc": "2037-12-31T10:49:08Z", "ms": 2145869347530.1372 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-01-01", "window": { "start": { "local": "2038-01-01T06:49:32-04:00", "utc": "2038-01-01T10:49:32Z", "ms": 2145955771941.881 }, "end": { "local": "2038-01-01T06:49:32-04:00", "utc": "2038-01-01T10:49:32Z", "ms": 2145955771941.881 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:48 on Thu 31 Dec to 14:51 on Fri 1 Jan.", "fact": "2037-12-31T20:48:23Z → 2038-01-01T18:50:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:49 on the 31st and 06:50 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 31st and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28866 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Valencia, 2038: Friday 1 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": "2038-01-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-01", "confidence": "determinate" } ], "quote": "In Valencia, Saphalā Ekādaśī 2038 falls on Friday 1 January. Ekādaśī runs from 16:48 on Thu 31 Dec to 14:51 on Fri 1 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-01-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-01-02", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19094, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-01-02T13:04:09-04:00", "utc": "2038-01-02T17:04:09Z", "ms": 2146064648847.6816 }, "end": { "local": "2038-01-03T11:33:43-04:00", "utc": "2038-01-03T15:33:43Z", "ms": 2146145622834.4631 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-02T13:04:09-04:00", "utc": "2038-01-02T17:04:09Z", "ms": 2146064648847.6816 }, "end": { "local": "2038-01-03T11:33:43-04:00", "utc": "2038-01-03T15:33:43Z", "ms": 2146145622834.4631 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-01-02", "window": { "start": { "local": "2038-01-02T18:22:23-04:00", "utc": "2038-01-02T22:22:23Z", "ms": 2146083743342.4163 }, "end": { "local": "2038-01-02T20:02:07-04:00", "utc": "2038-01-03T00:02:07Z", "ms": 2146089726723.1765 } }, "covered_min": 100, "window_min": 100, "qualifies": true }, { "local_date": "2038-01-03", "window": { "start": { "local": "2038-01-03T18:22:56-04:00", "utc": "2038-01-03T22:22:56Z", "ms": 2146170175842.327 }, "end": { "local": "2038-01-03T20:02:38-04:00", "utc": "2038-01-04T00:02:38Z", "ms": 2146176157860.824 } }, "covered_min": 0, "window_min": 100, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:04 on Sat 2 Jan to 11:34 on Sun 3 Jan.", "fact": "2038-01-02T17:04:09Z → 2038-01-03T15:33:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:22–20:02 on the 2nd, 18:23–20:03 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 100 of 100 minutes on the 2nd and 0 of 100 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 19094 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Saturday 2 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-02", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Saturday 2 January. Trayodaśī runs from 13:04 on Sat 2 Jan to 11:34 on Sun 3 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-01-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-01-03", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33818, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-01-03T11:33:43-04:00", "utc": "2038-01-03T15:33:43Z", "ms": 2146145622834.4631 }, "end": { "local": "2038-01-04T10:24:26-04:00", "utc": "2038-01-04T14:24:26Z", "ms": 2146227866256.7498 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-03T11:33:43-04:00", "utc": "2038-01-03T15:33:43Z", "ms": 2146145622834.4631 }, "end": { "local": "2038-01-04T10:24:26-04:00", "utc": "2038-01-04T14:24:26Z", "ms": 2146227866256.7498 } }, "kaala": "nishita", "days": [ { "local_date": "2038-01-02", "window": { "start": { "local": "2038-01-03T00:12:21-04:00", "utc": "2038-01-03T04:12:21Z", "ms": 2146104741020.267 }, "end": { "local": "2038-01-03T01:00:21-04:00", "utc": "2038-01-03T05:00:21Z", "ms": 2146107621020.267 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-01-03", "window": { "start": { "local": "2038-01-04T00:12:48-04:00", "utc": "2038-01-04T04:12:48Z", "ms": 2146191168411.6904 }, "end": { "local": "2038-01-04T01:00:48-04:00", "utc": "2038-01-04T05:00:48Z", "ms": 2146194048411.6904 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:34 on Sun 3 Jan to 10:24 on Mon 4 Jan.", "fact": "2038-01-03T15:33:43Z → 2038-01-04T14:24:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:12–01:00 on the 2nd, 00:13–01:01 on the 3rd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 2nd and 48 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33818 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Sunday 3 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": "2038-01-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-03", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Sunday 3 January. Caturdaśī runs from 11:34 on Sun 3 Jan to 10:24 on Mon 4 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-01-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-01-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-08", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 368, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-01-08T10:49:07-04:00", "utc": "2038-01-08T14:49:07Z", "ms": 2146574946916.3413 }, "end": { "local": "2038-01-09T12:21:23-04:00", "utc": "2038-01-09T16:21:23Z", "ms": 2146666882992.2097 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-08T10:49:07-04:00", "utc": "2038-01-08T14:49:07Z", "ms": 2146574946916.3413 }, "end": { "local": "2038-01-09T12:21:23-04:00", "utc": "2038-01-09T16:21:23Z", "ms": 2146666882992.2097 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-01-08", "window": { "start": { "local": "2038-01-08T12:14:50-04:00", "utc": "2038-01-08T16:14:50Z", "ms": 2146580089637.2021 }, "end": { "local": "2038-01-08T13:02:50-04:00", "utc": "2038-01-08T17:02:50Z", "ms": 2146582969637.2021 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-01-09", "window": { "start": { "local": "2038-01-09T12:15:15-04:00", "utc": "2038-01-09T16:15:15Z", "ms": 2146666514600.3643 }, "end": { "local": "2038-01-09T13:03:15-04:00", "utc": "2038-01-09T17:03:15Z", "ms": 2146669394600.3643 } }, "covered_min": 6, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:49 on Fri 8 Jan to 12:21 on Sat 9 Jan.", "fact": "2038-01-08T14:49:07Z → 2038-01-09T16:21:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 8th, 12:15–13:03 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 6 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 368 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Friday 8 January.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-08", "confidence": "boundary" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Friday 8 January. Caturthī runs from 10:49 on Fri 8 Jan to 12:21 on Sat 9 Jan and covers all of madhyāhna that midday. It also reaches the next midday for 6 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/valencia/festivals/2038/vinayaka-chaturthi?on=2038-01-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39803, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-02-12T20:25:21-04:00", "utc": "2038-02-13T00:25:21Z", "ms": 2149633520693.6387 } }, "span": { "of": "transit", "start": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 } }, "kaala": "sunset-day", "days": [ { "local_date": "2038-01-14", "window": { "start": { "local": "2038-01-13T18:28:13-04:00", "utc": "2038-01-13T22:28:13Z", "ms": 2147034493301.6868 }, "end": { "local": "2038-01-14T18:28:44-04:00", "utc": "2038-01-14T22:28:44Z", "ms": 2147120923579.0032 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2038-01-15", "window": { "start": { "local": "2038-01-14T18:28:44-04:00", "utc": "2038-01-14T22:28:44Z", "ms": 2147120923579.0032 }, "end": { "local": "2038-01-15T18:29:13-04:00", "utc": "2038-01-15T22:29:13Z", "ms": 2147207353477.9878 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2038-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 07:25 on Thu 14 Jan.", "fact": "2038-01-14T11:25:21Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:29, and the day of the 15th ends at 18:29.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 39803 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Thursday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Valencia, 2038: Wednesday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2038-01-13", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2038-01-13", "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 Valencia, Bhogi 2038 falls on Wednesday 13 January. It is kept the day before Pongal, which falls on Thursday 14 January. The Sun enters Makara at 07:25 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39803, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-02-12T20:25:21-04:00", "utc": "2038-02-13T00:25:21Z", "ms": 2149633520693.6387 } }, "span": { "of": "transit", "start": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 } }, "kaala": "sunset-day", "days": [ { "local_date": "2038-01-14", "window": { "start": { "local": "2038-01-13T18:28:13-04:00", "utc": "2038-01-13T22:28:13Z", "ms": 2147034493301.6868 }, "end": { "local": "2038-01-14T18:28:44-04:00", "utc": "2038-01-14T22:28:44Z", "ms": 2147120923579.0032 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2038-01-15", "window": { "start": { "local": "2038-01-14T18:28:44-04:00", "utc": "2038-01-14T22:28:44Z", "ms": 2147120923579.0032 }, "end": { "local": "2038-01-15T18:29:13-04:00", "utc": "2038-01-15T22:29:13Z", "ms": 2147207353477.9878 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 07:25 on Thu 14 Jan.", "fact": "2038-01-14T11:25:21Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:29, and the day of the 15th ends at 18:29.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 39803 s" }, { "step": "ruling", "text": "Pongal, Valencia, 2038: Thursday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2038-01-14", "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": "2038-01-14", "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 Valencia, Pongal 2038 falls on Thursday 14 January. The Sun enters Makara at 07:25 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26721, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-02-12T20:25:21-04:00", "utc": "2038-02-13T00:25:21Z", "ms": 2149633520693.6387 } }, "span": { "of": "transit", "start": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 } }, "kaala": "civil-day", "days": [ { "local_date": "2038-01-13", "window": { "start": { "local": "2038-01-13T00:00:00-04:00", "utc": "2038-01-13T04:00:00Z", "ms": 2146968000000 }, "end": { "local": "2038-01-14T00:00:00-04:00", "utc": "2038-01-14T04:00:00Z", "ms": 2147054400000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "2038-01-14", "window": { "start": { "local": "2038-01-14T00:00:00-04:00", "utc": "2038-01-14T04:00:00Z", "ms": 2147054400000 }, "end": { "local": "2038-01-15T00:00:00-04:00", "utc": "2038-01-15T04:00:00Z", "ms": 2147140800000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 07:25 on Thu 14 Jan.", "fact": "2038-01-14T11:25:21Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Valencia.", "fact": "civil-day: midnight-to-midnight · America/Caracas" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 26721 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Valencia, 2038: Thursday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2038-01-14", "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": "2038-01-14", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Valencia, Makara Saṅkrānti 2038 falls on Thursday 14 January. The Sun enters Makara at 07:25 on Thu 14 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39803, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-02-12T20:25:21-04:00", "utc": "2038-02-13T00:25:21Z", "ms": 2149633520693.6387 } }, "span": { "of": "transit", "start": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-01-14T07:25:21-04:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 } }, "kaala": "sunset-day", "days": [ { "local_date": "2038-01-14", "window": { "start": { "local": "2038-01-13T18:28:13-04:00", "utc": "2038-01-13T22:28:13Z", "ms": 2147034493301.6868 }, "end": { "local": "2038-01-14T18:28:44-04:00", "utc": "2038-01-14T22:28:44Z", "ms": 2147120923579.0032 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2038-01-15", "window": { "start": { "local": "2038-01-14T18:28:44-04:00", "utc": "2038-01-14T22:28:44Z", "ms": 2147120923579.0032 }, "end": { "local": "2038-01-15T18:29:13-04:00", "utc": "2038-01-15T22:29:13Z", "ms": 2147207353477.9878 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2038-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 07:25 on Thu 14 Jan.", "fact": "2038-01-14T11:25:21Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:29, and the day of the 15th ends at 18:29.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 39803 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Thursday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Valencia, 2038: Friday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2038-01-15", "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": "2038-01-15", "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 Valencia, Mattu Pongal 2038 falls on Friday 15 January. It is kept the day after Pongal, which falls on Thursday 14 January. The Sun enters Makara at 07:25 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-01-16", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15317, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-01-16T01:36:36-04:00", "utc": "2038-01-16T05:36:36Z", "ms": 2147232996330.6426 }, "end": { "local": "2038-01-17T02:38:54-04:00", "utc": "2038-01-17T06:38:54Z", "ms": 2147323134298.7515 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-16T01:36:36-04:00", "utc": "2038-01-16T05:36:36Z", "ms": 2147232996330.6426 }, "end": { "local": "2038-01-17T02:38:54-04:00", "utc": "2038-01-17T06:38:54Z", "ms": 2147323134298.7515 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-01-16", "window": { "start": { "local": "2038-01-16T06:54:01-04:00", "utc": "2038-01-16T10:54:01Z", "ms": 2147252041152.9626 }, "end": { "local": "2038-01-16T06:54:01-04:00", "utc": "2038-01-16T10:54:01Z", "ms": 2147252041152.9626 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-01-17", "window": { "start": { "local": "2038-01-17T06:54:12-04:00", "utc": "2038-01-17T10:54:12Z", "ms": 2147338451640.3428 }, "end": { "local": "2038-01-17T06:54:12-04:00", "utc": "2038-01-17T10:54:12Z", "ms": 2147338451640.3428 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:37 on Sat 16 Jan to 02:39 on Sun 17 Jan.", "fact": "2038-01-16T05:36:36Z → 2038-01-17T06:38:54Z" }, { "step": "kaala", "text": "Sunrise is at 06:54 on the 16th and 06:54 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15317 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Valencia, 2038: Saturday 16 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-16", "confidence": "determinate" } ], "quote": "In Valencia, Putradā Ekādaśī 2038 falls on Saturday 16 January. Ekādaśī runs from 01:37 on Sat 16 Jan to 02:39 on Sun 17 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-01-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-01-18", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23232, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-01-18T02:59:09-04:00", "utc": "2038-01-18T06:59:09Z", "ms": 2147410748561.5283 }, "end": { "local": "2038-01-19T02:37:03-04:00", "utc": "2038-01-19T06:37:03Z", "ms": 2147495823182.4377 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-18T02:59:09-04:00", "utc": "2038-01-18T06:59:09Z", "ms": 2147410748561.5283 }, "end": { "local": "2038-01-19T02:37:03-04:00", "utc": "2038-01-19T06:37:03Z", "ms": 2147495823182.4377 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-01-17", "window": { "start": { "local": "2038-01-17T18:30:12-04:00", "utc": "2038-01-17T22:30:12Z", "ms": 2147380212050.9602 }, "end": { "local": "2038-01-17T20:09:25-04:00", "utc": "2038-01-18T00:09:25Z", "ms": 2147386165259.617 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "2038-01-18", "window": { "start": { "local": "2038-01-18T18:30:41-04:00", "utc": "2038-01-18T22:30:41Z", "ms": 2147466640684.2478 }, "end": { "local": "2038-01-18T20:09:51-04:00", "utc": "2038-01-19T00:09:51Z", "ms": 2147472591202.8804 } }, "covered_min": 99, "window_min": 99, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:59 on Mon 18 Jan to 02:37 on Tue 19 Jan.", "fact": "2038-01-18T06:59:09Z → 2038-01-19T06:37:03Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:30–20:09 on the 17th, 18:31–20:10 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 99 minutes on the 17th and 99 of 99 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 23232 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Monday 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": "2038-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-18", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Monday 18 January. Trayodaśī runs from 02:59 on Mon 18 Jan to 02:37 on Tue 19 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-01-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-01-23", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15274, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-01-23T16:59:48-04:00", "utc": "2038-01-23T20:59:48Z", "ms": 2147893188304.5415 }, "end": { "local": "2038-01-24T14:20:41-04:00", "utc": "2038-01-24T18:20:41Z", "ms": 2147970041086.3801 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-01-23T16:59:48-04:00", "utc": "2038-01-23T20:59:48Z", "ms": 2147893188304.5415 }, "end": { "local": "2038-01-24T14:20:41-04:00", "utc": "2038-01-24T18:20:41Z", "ms": 2147970041086.3801 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-01-23", "window": { "start": { "local": "2038-01-23T21:14:22-04:00", "utc": "2038-01-24T01:14:22Z", "ms": 2147908462375.2878 }, "end": { "local": "2038-01-23T21:14:22-04:00", "utc": "2038-01-24T01:14:22Z", "ms": 2147908462375.2878 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-01-24", "window": { "start": { "local": "2038-01-24T22:11:02-04:00", "utc": "2038-01-25T02:11:02Z", "ms": 2147998261891.548 }, "end": { "local": "2038-01-24T22:11:02-04:00", "utc": "2038-01-25T02:11:02Z", "ms": 2147998261891.548 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:00 on Sat 23 Jan to 14:21 on Sun 24 Jan.", "fact": "2038-01-23T20:59:48Z → 2038-01-24T18:20:41Z" }, { "step": "kaala", "text": "Moonrise is at 21:14 on the 23rd and 22:11 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 23rd and is not on the 24th.", "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 15274 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Saturday 23 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-23", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Saturday 23 January. Caturthī runs from 17:00 on Sat 23 Jan to 14:21 on Sun 24 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-01-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-01-30", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16957, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-01-30T02:12:18-04:00", "utc": "2038-01-30T06:12:18Z", "ms": 2148444738382.068 }, "end": { "local": "2038-01-31T01:20:01-04:00", "utc": "2038-01-31T05:20:01Z", "ms": 2148528000878.6692 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-01-30T02:12:18-04:00", "utc": "2038-01-30T06:12:18Z", "ms": 2148444738382.068 }, "end": { "local": "2038-01-31T01:20:01-04:00", "utc": "2038-01-31T05:20:01Z", "ms": 2148528000878.6692 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-01-30", "window": { "start": { "local": "2038-01-30T06:54:55-04:00", "utc": "2038-01-30T10:54:55Z", "ms": 2148461695318.2256 }, "end": { "local": "2038-01-30T06:54:55-04:00", "utc": "2038-01-30T10:54:55Z", "ms": 2148461695318.2256 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-01-31", "window": { "start": { "local": "2038-01-31T06:54:52-04:00", "utc": "2038-01-31T10:54:52Z", "ms": 2148548091589.3435 }, "end": { "local": "2038-01-31T06:54:52-04:00", "utc": "2038-01-31T10:54:52Z", "ms": 2148548091589.3435 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:12 on Sat 30 Jan to 01:20 on Sun 31 Jan.", "fact": "2038-01-30T06:12:18Z → 2038-01-31T05:20:01Z" }, { "step": "kaala", "text": "Sunrise is at 06:55 on the 30th and 06:55 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16957 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Valencia, 2038: Saturday 30 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-30", "confidence": "determinate" } ], "quote": "In Valencia, Ṣaṭtilā Ekādaśī 2038 falls on Saturday 30 January. Ekādaśī runs from 02:12 on Sat 30 Jan to 01:20 on Sun 31 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-01-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-02-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16296, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-02-01T00:51:13-04:00", "utc": "2038-02-01T04:51:13Z", "ms": 2148612672736.3904 }, "end": { "local": "2038-02-02T00:46:30-04:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-01T00:51:13-04:00", "utc": "2038-02-01T04:51:13Z", "ms": 2148612672736.3904 }, "end": { "local": "2038-02-02T00:46:30-04:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-01-31", "window": { "start": { "local": "2038-01-31T18:36:07-04:00", "utc": "2038-01-31T22:36:07Z", "ms": 2148590166528.6187 }, "end": { "local": "2038-01-31T20:14:36-04:00", "utc": "2038-02-01T00:14:36Z", "ms": 2148596075906.001 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2038-02-01", "window": { "start": { "local": "2038-02-01T18:36:28-04:00", "utc": "2038-02-01T22:36:28Z", "ms": 2148676587643.1743 }, "end": { "local": "2038-02-01T20:14:53-04:00", "utc": "2038-02-02T00:14:53Z", "ms": 2148682493441.445 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:51 on Mon 1 Feb to 00:46 on Tue 2 Feb.", "fact": "2038-02-01T04:51:13Z → 2038-02-02T04:46:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:36–20:15 on the 31st, 18:36–20:15 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 98 minutes on the 31st and 98 of 98 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 16296 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Monday 1 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": "2038-02-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-01", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Monday 1 February. Trayodaśī runs from 00:51 on Mon 1 Feb to 00:46 on Tue 2 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-02-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14977, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-02-02T00:46:30-04:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "end": { "local": "2038-02-03T01:06:35-04:00", "utc": "2038-02-03T05:06:35Z", "ms": 2148786394870.0818 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-02T00:46:30-04:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "end": { "local": "2038-02-03T01:06:35-04:00", "utc": "2038-02-03T05:06:35Z", "ms": 2148786394870.0818 } }, "kaala": "arunodaya", "days": [ { "local_date": "2038-02-02", "window": { "start": { "local": "2038-02-02T05:16:15-04:00", "utc": "2038-02-02T09:16:15Z", "ms": 2148714975331.9333 }, "end": { "local": "2038-02-02T06:54:41-04:00", "utc": "2038-02-02T10:54:41Z", "ms": 2148720881130.204 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "2038-02-03", "window": { "start": { "local": "2038-02-03T05:16:12-04:00", "utc": "2038-02-03T09:16:12Z", "ms": 2148801372237.8057 }, "end": { "local": "2038-02-03T06:54:34-04:00", "utc": "2038-02-03T10:54:34Z", "ms": 2148807274406.4187 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:46 on Tue 2 Feb to 01:07 on Wed 3 Feb.", "fact": "2038-02-02T04:46:30Z → 2038-02-03T05:06:35Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:16–06:55 on the 2nd, 05:16–06:55 on the 3rd.", "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 98 of 98 minutes on the 2nd and 0 of 98 on the 3rd.", "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 14977 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Valencia, 2038: Tuesday 2 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-02", "confidence": "determinate" } ], "quote": "In Valencia, Yama Tarpaṇa 2038 falls on Tuesday 2 February. Caturdaśī runs from 00:46 on Tue 2 Feb to 01:07 on Wed 3 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/shivaratri?on=2038-02-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-02", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 186, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-02-02T00:46:30-04:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "end": { "local": "2038-02-03T01:06:35-04:00", "utc": "2038-02-03T05:06:35Z", "ms": 2148786394870.0818 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-02T00:46:30-04:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "end": { "local": "2038-02-03T01:06:35-04:00", "utc": "2038-02-03T05:06:35Z", "ms": 2148786394870.0818 } }, "kaala": "nishita", "days": [ { "local_date": "2038-02-01", "window": { "start": { "local": "2038-02-02T00:21:34-04:00", "utc": "2038-02-02T04:21:34Z", "ms": 2148697294386.6892 }, "end": { "local": "2038-02-02T01:09:34-04:00", "utc": "2038-02-02T05:09:34Z", "ms": 2148700174386.6892 } }, "covered_min": 23, "window_min": 48, "qualifies": true }, { "local_date": "2038-02-02", "window": { "start": { "local": "2038-02-03T00:21:41-04:00", "utc": "2038-02-03T04:21:41Z", "ms": 2148783701274.1196 }, "end": { "local": "2038-02-03T01:09:41-04:00", "utc": "2038-02-03T05:09:41Z", "ms": 2148786581274.1196 } }, "covered_min": 45, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:46 on Tue 2 Feb to 01:07 on Wed 3 Feb.", "fact": "2038-02-02T04:46:30Z → 2038-02-03T05:06:35Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:22–01:10 on the 1st, 00:22–01:10 on the 2nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 23 of 48 minutes on the 1st and 45 of 48 on the 2nd.", "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 186 s < 300 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Tuesday 2 February.", "fact": "confidence: boundary (margin, 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": "2038-02-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-02", "confidence": "boundary" } ], "quote": "In Valencia, Śivarātri 2038 falls on Tuesday 2 February. Caturdaśī runs from 00:46 on Tue 2 Feb to 01:07 on Wed 3 Feb and covers 45 of 48 minutes of niśītha that night. It also reaches the previous night for 23 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 3 min 06 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-02-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12008, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-02-07T06:42:08-04:00", "utc": "2038-02-07T10:42:08Z", "ms": 2149152127977.0762 }, "end": { "local": "2038-02-08T09:02:04-04:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-07T06:42:08-04:00", "utc": "2038-02-07T10:42:08Z", "ms": 2149152127977.0762 }, "end": { "local": "2038-02-08T09:02:04-04:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-07", "window": { "start": { "local": "2038-02-07T12:22:09-04:00", "utc": "2038-02-07T16:22:09Z", "ms": 2149172529399.6694 }, "end": { "local": "2038-02-07T13:10:09-04:00", "utc": "2038-02-07T17:10:09Z", "ms": 2149175409399.6694 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-02-08", "window": { "start": { "local": "2038-02-08T12:22:12-04:00", "utc": "2038-02-08T16:22:12Z", "ms": 2149258931926.3228 }, "end": { "local": "2038-02-08T13:10:12-04:00", "utc": "2038-02-08T17:10:12Z", "ms": 2149261811926.3228 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:42 on Sun 7 Feb to 09:02 on Mon 8 Feb.", "fact": "2038-02-07T10:42:08Z → 2038-02-08T13:02:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 7th, 12:22–13:10 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 0 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12008 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Valencia, 2038: Sunday 7 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-07", "confidence": "determinate" } ], "quote": "In Valencia, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2038 falls on Sunday 7 February. Caturthī runs from 06:42 on Sun 7 Feb to 09:02 on Mon 8 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34594, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-02-07T06:42:08-04:00", "utc": "2038-02-07T10:42:08Z", "ms": 2149152127977.0762 }, "end": { "local": "2038-02-08T09:02:04-04:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-07T06:42:08-04:00", "utc": "2038-02-07T10:42:08Z", "ms": 2149152127977.0762 }, "end": { "local": "2038-02-08T09:02:04-04:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-02-07", "window": { "start": { "local": "2038-02-07T18:38:21-04:00", "utc": "2038-02-07T22:38:21Z", "ms": 2149195101135.3215 }, "end": { "local": "2038-02-07T20:16:24-04:00", "utc": "2038-02-08T00:16:24Z", "ms": 2149200984457.5938 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "2038-02-08", "window": { "start": { "local": "2038-02-08T18:38:38-04:00", "utc": "2038-02-08T22:38:38Z", "ms": 2149281517800.282 }, "end": { "local": "2038-02-08T20:16:37-04:00", "utc": "2038-02-09T00:16:37Z", "ms": 2149287397225.4333 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:42 on Sun 7 Feb to 09:02 on Mon 8 Feb.", "fact": "2038-02-07T10:42:08Z → 2038-02-08T13:02:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:38–20:16 on the 7th, 18:39–20:17 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 98 of 98 minutes on the 7th and 0 of 98 on the 8th.", "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 34594 s" }, { "step": "ruling", "text": "Tila Caturthī, Valencia, 2038: Sunday 7 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-07", "confidence": "determinate" } ], "quote": "In Valencia, Tila Caturthī 2038 falls on Sunday 7 February. Caturthī runs from 06:42 on Sun 7 Feb to 09:02 on Mon 8 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2920, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-02-08T09:02:04-04:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "end": { "local": "2038-02-09T11:33:33-04:00", "utc": "2038-02-09T15:33:33Z", "ms": 2149342413469.078 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-08T09:02:04-04:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "end": { "local": "2038-02-09T11:33:33-04:00", "utc": "2038-02-09T15:33:33Z", "ms": 2149342413469.078 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-08", "window": { "start": { "local": "2038-02-08T12:22:12-04:00", "utc": "2038-02-08T16:22:12Z", "ms": 2149258931926.3228 }, "end": { "local": "2038-02-08T13:10:12-04:00", "utc": "2038-02-08T17:10:12Z", "ms": 2149261811926.3228 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-02-09", "window": { "start": { "local": "2038-02-09T12:22:14-04:00", "utc": "2038-02-09T16:22:14Z", "ms": 2149345333652.4487 }, "end": { "local": "2038-02-09T13:10:14-04:00", "utc": "2038-02-09T17:10:14Z", "ms": 2149348213652.4487 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 09:02 on Mon 8 Feb to 11:34 on Tue 9 Feb.", "fact": "2038-02-08T13:02:04Z → 2038-02-09T15:33:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 8th, 12:22–13:10 on the 9th.", "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 8th and 0 of 48 on the 9th.", "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 2920 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Valencia, 2038: Monday 8 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-08", "confidence": "boundary" } ], "quote": "In Valencia, Śrī Pañcamī 2038 falls on Monday 8 February. Pañcamī runs from 09:02 on Mon 8 Feb to 11:34 on Tue 9 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2920, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-02-08T09:02:04-04:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "end": { "local": "2038-02-09T11:33:33-04:00", "utc": "2038-02-09T15:33:33Z", "ms": 2149342413469.078 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-08T09:02:04-04:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "end": { "local": "2038-02-09T11:33:33-04:00", "utc": "2038-02-09T15:33:33Z", "ms": 2149342413469.078 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-08", "window": { "start": { "local": "2038-02-08T12:22:12-04:00", "utc": "2038-02-08T16:22:12Z", "ms": 2149258931926.3228 }, "end": { "local": "2038-02-08T13:10:12-04:00", "utc": "2038-02-08T17:10:12Z", "ms": 2149261811926.3228 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-02-09", "window": { "start": { "local": "2038-02-09T12:22:14-04:00", "utc": "2038-02-09T16:22:14Z", "ms": 2149345333652.4487 }, "end": { "local": "2038-02-09T13:10:14-04:00", "utc": "2038-02-09T17:10:14Z", "ms": 2149348213652.4487 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 09:02 on Mon 8 Feb to 11:34 on Tue 9 Feb.", "fact": "2038-02-08T13:02:04Z → 2038-02-09T15:33:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 8th, 12:22–13:10 on the 9th.", "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 8th and 0 of 48 on the 9th.", "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 2920 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Valencia, 2038: Monday 8 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-08", "confidence": "boundary" } ], "quote": "In Valencia, Vasanta Pañcamī 2038 falls on Monday 8 February. Pañcamī runs from 09:02 on Mon 8 Feb to 11:34 on Tue 9 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25971, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-02-10T14:06:11-04:00", "utc": "2038-02-10T18:06:11Z", "ms": 2149437970757.6792 }, "end": { "local": "2038-02-11T16:27:28-04:00", "utc": "2038-02-11T20:27:28Z", "ms": 2149532847635.2742 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-10T14:06:11-04:00", "utc": "2038-02-10T18:06:11Z", "ms": 2149437970757.6792 }, "end": { "local": "2038-02-11T16:27:28-04:00", "utc": "2038-02-11T20:27:28Z", "ms": 2149532847635.2742 } }, "kaala": "arunodaya", "days": [ { "local_date": "2038-02-10", "window": { "start": { "local": "2038-02-10T05:15:24-04:00", "utc": "2038-02-10T09:15:24Z", "ms": 2149406124495.909 }, "end": { "local": "2038-02-10T06:53:20-04:00", "utc": "2038-02-10T10:53:20Z", "ms": 2149411999985.129 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2038-02-11", "window": { "start": { "local": "2038-02-11T05:15:14-04:00", "utc": "2038-02-11T09:15:14Z", "ms": 2149492514037.5452 }, "end": { "local": "2038-02-11T06:53:06-04:00", "utc": "2038-02-11T10:53:06Z", "ms": 2149498385553.5999 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 14:06 on Wed 10 Feb to 16:27 on Thu 11 Feb.", "fact": "2038-02-10T18:06:11Z → 2038-02-11T20:27:28Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:15–06:53 on the 10th, 05:15–06:53 on the 11th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during aruṇodaya. It covers 0 of 98 minutes on the 10th and 98 of 98 on the 11th.", "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 25971 s" }, { "step": "ruling", "text": "Ratha Saptamī, Valencia, 2038: Thursday 11 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-11", "confidence": "determinate" } ], "quote": "In Valencia, Ratha Saptamī 2038 falls on Thursday 11 February. Saptamī runs from 14:06 on Wed 10 Feb to 16:27 on Thu 11 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-02-15", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37761, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-02-14T20:22:38-04:00", "utc": "2038-02-15T00:22:38Z", "ms": 2149806157908.8618 }, "end": { "local": "2038-02-15T20:11:08-04:00", "utc": "2038-02-16T00:11:08Z", "ms": 2149891867785.1868 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-14T20:22:38-04:00", "utc": "2038-02-15T00:22:38Z", "ms": 2149806157908.8618 }, "end": { "local": "2038-02-15T20:11:08-04:00", "utc": "2038-02-16T00:11:08Z", "ms": 2149891867785.1868 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-02-15", "window": { "start": { "local": "2038-02-15T06:51:59-04:00", "utc": "2038-02-15T10:51:59Z", "ms": 2149843918841.7942 }, "end": { "local": "2038-02-15T06:51:59-04:00", "utc": "2038-02-15T10:51:59Z", "ms": 2149843918841.7942 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-02-16", "window": { "start": { "local": "2038-02-16T06:51:40-04:00", "utc": "2038-02-16T10:51:40Z", "ms": 2149930300000.0642 }, "end": { "local": "2038-02-16T06:51:40-04:00", "utc": "2038-02-16T10:51:40Z", "ms": 2149930300000.0642 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:23 on Sun 14 Feb to 20:11 on Mon 15 Feb.", "fact": "2038-02-15T00:22:38Z → 2038-02-16T00:11:08Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 15th and 06:52 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 37761 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Valencia, 2038: Monday 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": "2038-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-15", "confidence": "determinate" } ], "quote": "In Valencia, Jayā Ekādaśī 2038 falls on Monday 15 February. Ekādaśī runs from 20:23 on Sun 14 Feb to 20:11 on Mon 15 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-02-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21659, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-02-15T20:11:08-04:00", "utc": "2038-02-16T00:11:08Z", "ms": 2149891867785.1868 }, "end": { "local": "2038-02-16T19:11:03-04:00", "utc": "2038-02-16T23:11:03Z", "ms": 2149974663385.477 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-15T20:11:08-04:00", "utc": "2038-02-16T00:11:08Z", "ms": 2149891867785.1868 }, "end": { "local": "2038-02-16T19:11:03-04:00", "utc": "2038-02-16T23:11:03Z", "ms": 2149974663385.477 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-15", "window": { "start": { "local": "2038-02-15T12:22:08-04:00", "utc": "2038-02-15T16:22:08Z", "ms": 2149863727626.6714 }, "end": { "local": "2038-02-15T13:10:08-04:00", "utc": "2038-02-15T17:10:08Z", "ms": 2149866607626.6714 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-02-16", "window": { "start": { "local": "2038-02-16T12:22:04-04:00", "utc": "2038-02-16T16:22:04Z", "ms": 2149950123989.6445 }, "end": { "local": "2038-02-16T13:10:04-04:00", "utc": "2038-02-16T17:10:04Z", "ms": 2149953003989.6445 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 20:11 on Mon 15 Feb to 19:11 on Tue 16 Feb.", "fact": "2038-02-16T00:11:08Z → 2038-02-16T23:11:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 15th, 12:22–13:10 on the 16th.", "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 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21659 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Valencia, 2038: Tuesday 16 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": "2038-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-16", "confidence": "determinate" } ], "quote": "In Valencia, Bhīṣma Dvādaśī 2038 falls on Tuesday 16 February. Dvādaśī runs from 20:11 on Mon 15 Feb to 19:11 on Tue 16 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/pradosha-vrata?on=2038-02-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1835, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-02-16T19:11:03-04:00", "utc": "2038-02-16T23:11:03Z", "ms": 2149974663385.477 }, "end": { "local": "2038-02-17T17:26:04-04:00", "utc": "2038-02-17T21:26:04Z", "ms": 2150054763688.7798 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-16T19:11:03-04:00", "utc": "2038-02-16T23:11:03Z", "ms": 2149974663385.477 }, "end": { "local": "2038-02-17T17:26:04-04:00", "utc": "2038-02-17T21:26:04Z", "ms": 2150054763688.7798 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-02-16", "window": { "start": { "local": "2038-02-16T18:40:28-04:00", "utc": "2038-02-16T22:40:28Z", "ms": 2149972827979.225 }, "end": { "local": "2038-02-16T20:17:55-04:00", "utc": "2038-02-17T00:17:55Z", "ms": 2149978674959.3757 } }, "covered_min": 67, "window_min": 97, "qualifies": true }, { "local_date": "2038-02-17", "window": { "start": { "local": "2038-02-17T18:40:39-04:00", "utc": "2038-02-17T22:40:39Z", "ms": 2150059238942.355 }, "end": { "local": "2038-02-17T20:18:02-04:00", "utc": "2038-02-18T00:18:02Z", "ms": 2150065081730.5293 } }, "covered_min": 0, "window_min": 97, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:11 on Tue 16 Feb to 17:26 on Wed 17 Feb.", "fact": "2038-02-16T23:11:03Z → 2038-02-17T21:26:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:40–20:18 on the 16th, 18:41–20:18 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 67 of 97 minutes on the 16th and 0 of 97 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 1835 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Tuesday 16 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-16", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Tuesday 16 February. Trayodaśī runs from 19:11 on Tue 16 Feb to 17:26 on Wed 17 Feb and covers 67 of 97 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-02-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 742, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-02-18T15:02:41-04:00", "utc": "2038-02-18T19:02:41Z", "ms": 2150132560982.72 }, "end": { "local": "2038-02-19T12:09:27-04:00", "utc": "2038-02-19T16:09:27Z", "ms": 2150208567207.3682 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-18T15:02:41-04:00", "utc": "2038-02-18T19:02:41Z", "ms": 2150132560982.72 }, "end": { "local": "2038-02-19T12:09:27-04:00", "utc": "2038-02-19T16:09:27Z", "ms": 2150208567207.3682 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-18", "window": { "start": { "local": "2038-02-18T12:21:55-04:00", "utc": "2038-02-18T16:21:55Z", "ms": 2150122914583.542 }, "end": { "local": "2038-02-18T13:09:55-04:00", "utc": "2038-02-18T17:09:55Z", "ms": 2150125794583.542 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-02-19", "window": { "start": { "local": "2038-02-19T12:21:49-04:00", "utc": "2038-02-19T16:21:49Z", "ms": 2150209308849.332 }, "end": { "local": "2038-02-19T13:09:49-04:00", "utc": "2038-02-19T17:09:49Z", "ms": 2150212188849.332 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:03 on Thu 18 Feb to 12:09 on Fri 19 Feb.", "fact": "2038-02-18T19:02:41Z → 2038-02-19T16:09:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 18th, 12:22–13:10 on the 19th.", "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 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 742 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Valencia, 2038: Friday 19 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": "2038-02-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-19", "confidence": "determinate" } ], "quote": "In Valencia, Māghī Pūrṇimā 2038 falls on Friday 19 February. Pūrṇimā runs from 15:03 on Thu 18 Feb to 12:09 on Fri 19 Feb, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-02-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3856, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-02-22T02:10:05-04:00", "utc": "2038-02-22T06:10:05Z", "ms": 2150431805020.924 }, "end": { "local": "2038-02-22T22:57:27-04:00", "utc": "2038-02-23T02:57:27Z", "ms": 2150506646523.2024 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-02-22T02:10:05-04:00", "utc": "2038-02-22T06:10:05Z", "ms": 2150431805020.924 }, "end": { "local": "2038-02-22T22:57:27-04:00", "utc": "2038-02-23T02:57:27Z", "ms": 2150506646523.2024 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-02-21", "window": { "start": { "local": "2038-02-21T20:56:01-04:00", "utc": "2038-02-22T00:56:01Z", "ms": 2150412960814.3203 }, "end": { "local": "2038-02-21T20:56:01-04:00", "utc": "2038-02-22T00:56:01Z", "ms": 2150412960814.3203 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-02-22", "window": { "start": { "local": "2038-02-22T21:53:11-04:00", "utc": "2038-02-23T01:53:11Z", "ms": 2150502790912.1643 }, "end": { "local": "2038-02-22T21:53:11-04:00", "utc": "2038-02-23T01:53:11Z", "ms": 2150502790912.1643 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:10 on Mon 22 Feb to 22:57 on Mon 22 Feb.", "fact": "2038-02-22T06:10:05Z → 2038-02-23T02:57:27Z" }, { "step": "kaala", "text": "Moonrise is at 20:56 on the 21st and 21:53 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3856 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Monday 22 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": "2038-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-22", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Monday 22 February. Caturthī runs from 02:10 on Mon 22 Feb to 22:57 on Mon 22 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-02-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-03-01", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23883, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-02-28T13:24:59-04:00", "utc": "2038-02-28T17:24:59Z", "ms": 2150990698596.1426 }, "end": { "local": "2038-03-01T13:46:12-04:00", "utc": "2038-03-01T17:46:12Z", "ms": 2151078372244.2456 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-02-28T13:24:59-04:00", "utc": "2038-02-28T17:24:59Z", "ms": 2150990698596.1426 }, "end": { "local": "2038-03-01T13:46:12-04:00", "utc": "2038-03-01T17:46:12Z", "ms": 2151078372244.2456 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-02-28", "window": { "start": { "local": "2038-02-28T06:46:56-04:00", "utc": "2038-02-28T10:46:56Z", "ms": 2150966815768.5276 }, "end": { "local": "2038-02-28T06:46:56-04:00", "utc": "2038-02-28T10:46:56Z", "ms": 2150966815768.5276 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-03-01", "window": { "start": { "local": "2038-03-01T06:46:28-04:00", "utc": "2038-03-01T10:46:28Z", "ms": 2151053187918.5776 }, "end": { "local": "2038-03-01T06:46:28-04:00", "utc": "2038-03-01T10:46:28Z", "ms": 2151053187918.5776 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:25 on Sun 28 Feb to 13:46 on Mon 1 Mar.", "fact": "2038-02-28T17:24:59Z → 2038-03-01T17:46:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:47 on the 28th and 06:46 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 28th and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23883 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Valencia, 2038: Monday 1 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-01", "confidence": "determinate" } ], "quote": "In Valencia, Vijayā Ekādaśī 2038 falls on Monday 1 March. Ekādaśī runs from 13:25 on Sun 28 Feb to 13:46 on Mon 1 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-03-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-03-02", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10424, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-03-02T14:35:18-04:00", "utc": "2038-03-02T18:35:18Z", "ms": 2151167718346.0315 }, "end": { "local": "2038-03-03T15:48:33-04:00", "utc": "2038-03-03T19:48:33Z", "ms": 2151258512568.978 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-02T14:35:18-04:00", "utc": "2038-03-02T18:35:18Z", "ms": 2151167718346.0315 }, "end": { "local": "2038-03-03T15:48:33-04:00", "utc": "2038-03-03T19:48:33Z", "ms": 2151258512568.978 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-03-02", "window": { "start": { "local": "2038-03-02T18:42:13-04:00", "utc": "2038-03-02T22:42:13Z", "ms": 2151182533059.305 }, "end": { "local": "2038-03-02T20:18:39-04:00", "utc": "2038-03-03T00:18:39Z", "ms": 2151188319398.6343 } }, "covered_min": 96, "window_min": 96, "qualifies": true }, { "local_date": "2038-03-03", "window": { "start": { "local": "2038-03-03T18:42:17-04:00", "utc": "2038-03-03T22:42:17Z", "ms": 2151268937067.2244 }, "end": { "local": "2038-03-03T20:18:39-04:00", "utc": "2038-03-04T00:18:39Z", "ms": 2151274718948.6284 } }, "covered_min": 0, "window_min": 96, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:35 on Tue 2 Mar to 15:49 on Wed 3 Mar.", "fact": "2038-03-02T18:35:18Z → 2038-03-03T19:48:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:19 on the 2nd, 18:42–20:19 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 96 of 96 minutes on the 2nd and 0 of 96 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 10424 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Tuesday 2 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-02", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Tuesday 2 March. Trayodaśī runs from 14:35 on Tue 2 Mar to 15:49 on Wed 3 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-03-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25006, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-03-03T15:48:33-04:00", "utc": "2038-03-03T19:48:33Z", "ms": 2151258512568.978 }, "end": { "local": "2038-03-04T17:22:40-04:00", "utc": "2038-03-04T21:22:40Z", "ms": 2151350560220.4055 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-03T15:48:33-04:00", "utc": "2038-03-03T19:48:33Z", "ms": 2151258512568.978 }, "end": { "local": "2038-03-04T17:22:40-04:00", "utc": "2038-03-04T21:22:40Z", "ms": 2151350560220.4055 } }, "kaala": "nishita", "days": [ { "local_date": "2038-03-03", "window": { "start": { "local": "2038-03-04T00:19:39-04:00", "utc": "2038-03-04T04:19:39Z", "ms": 2151289179122.4897 }, "end": { "local": "2038-03-04T01:07:39-04:00", "utc": "2038-03-04T05:07:39Z", "ms": 2151292059122.4897 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-03-04", "window": { "start": { "local": "2038-03-05T00:19:26-04:00", "utc": "2038-03-05T04:19:26Z", "ms": 2151375565969.4849 }, "end": { "local": "2038-03-05T01:07:26-04:00", "utc": "2038-03-05T05:07:26Z", "ms": 2151378445969.4849 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:49 on Wed 3 Mar to 17:23 on Thu 4 Mar.", "fact": "2038-03-03T19:48:33Z → 2038-03-04T21:22:40Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:20–01:08 on the 3rd, 00:19–01:07 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "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 25006 s" }, { "step": "ruling", "text": "Mahāśivarātri, Valencia, 2038: Wednesday 3 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-03", "confidence": "determinate" } ], "quote": "In Valencia, Mahāśivarātri 2038 falls on Wednesday 3 March. Caturdaśī runs from 15:49 on Wed 3 Mar to 17:23 on Thu 4 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-03-09", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27066, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-03-09T02:14:33-04:00", "utc": "2038-03-09T06:14:33Z", "ms": 2151728072941.351 }, "end": { "local": "2038-03-10T04:47:09-04:00", "utc": "2038-03-10T08:47:09Z", "ms": 2151823629079.8306 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-09T02:14:33-04:00", "utc": "2038-03-09T06:14:33Z", "ms": 2151728072941.351 }, "end": { "local": "2038-03-10T04:47:09-04:00", "utc": "2038-03-10T08:47:09Z", "ms": 2151823629079.8306 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-03-09", "window": { "start": { "local": "2038-03-09T12:18:30-04:00", "utc": "2038-03-09T16:18:30Z", "ms": 2151764310138.9214 }, "end": { "local": "2038-03-09T13:06:30-04:00", "utc": "2038-03-09T17:06:30Z", "ms": 2151767190138.9214 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-03-10", "window": { "start": { "local": "2038-03-10T12:18:15-04:00", "utc": "2038-03-10T16:18:15Z", "ms": 2151850694849.3828 }, "end": { "local": "2038-03-10T13:06:15-04:00", "utc": "2038-03-10T17:06:15Z", "ms": 2151853574849.3828 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:15 on Tue 9 Mar to 04:47 on Wed 10 Mar.", "fact": "2038-03-09T06:14:33Z → 2038-03-10T08:47:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 9th, 12:18–13:06 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27066 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Tuesday 9 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": "2038-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-09", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Tuesday 9 March. Caturthī runs from 02:15 on Tue 9 Mar to 04:47 on Wed 10 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-03-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-03-17", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13492, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-03-16T11:48:44-04:00", "utc": "2038-03-16T15:48:44Z", "ms": 2152367324455.7715 }, "end": { "local": "2038-03-17T10:22:53-04:00", "utc": "2038-03-17T14:22:53Z", "ms": 2152448573455.7153 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-16T11:48:44-04:00", "utc": "2038-03-16T15:48:44Z", "ms": 2152367324455.7715 }, "end": { "local": "2038-03-17T10:22:53-04:00", "utc": "2038-03-17T14:22:53Z", "ms": 2152448573455.7153 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-03-16", "window": { "start": { "local": "2038-03-16T06:38:36-04:00", "utc": "2038-03-16T10:38:36Z", "ms": 2152348715748.4875 }, "end": { "local": "2038-03-16T06:38:36-04:00", "utc": "2038-03-16T10:38:36Z", "ms": 2152348715748.4875 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-03-17", "window": { "start": { "local": "2038-03-17T06:38:02-04:00", "utc": "2038-03-17T10:38:02Z", "ms": 2152435081581.488 }, "end": { "local": "2038-03-17T06:38:02-04:00", "utc": "2038-03-17T10:38:02Z", "ms": 2152435081581.488 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:49 on Tue 16 Mar to 10:23 on Wed 17 Mar.", "fact": "2038-03-16T15:48:44Z → 2038-03-17T14:22:53Z" }, { "step": "kaala", "text": "Sunrise is at 06:39 on the 16th and 06:38 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 13492 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Valencia, 2038: Wednesday 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": "2038-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-17", "confidence": "determinate" } ], "quote": "In Valencia, Āmalakī Ekādaśī 2038 falls on Wednesday 17 March. Ekādaśī runs from 11:49 on Tue 16 Mar to 10:23 on Wed 17 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-03-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-03-18", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32354, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-03-18T08:10:00-04:00", "utc": "2038-03-18T12:10:00Z", "ms": 2152527000042.5837 }, "end": { "local": "2038-03-19T05:17:05-04:00", "utc": "2038-03-19T09:17:05Z", "ms": 2152603025084.9185 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-18T08:10:00-04:00", "utc": "2038-03-18T12:10:00Z", "ms": 2152527000042.5837 }, "end": { "local": "2038-03-19T05:17:05-04:00", "utc": "2038-03-19T09:17:05Z", "ms": 2152603025084.9185 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-03-17", "window": { "start": { "local": "2038-03-17T18:42:37-04:00", "utc": "2038-03-17T22:42:37Z", "ms": 2152478557350.6594 }, "end": { "local": "2038-03-17T20:17:56-04:00", "utc": "2038-03-18T00:17:56Z", "ms": 2152484275998.2786 } }, "covered_min": 0, "window_min": 95, "qualifies": false }, { "local_date": "2038-03-18", "window": { "start": { "local": "2038-03-18T18:42:37-04:00", "utc": "2038-03-18T22:42:37Z", "ms": 2152564956854.468 }, "end": { "local": "2038-03-18T20:17:51-04:00", "utc": "2038-03-19T00:17:51Z", "ms": 2152570670961.0044 } }, "covered_min": 95, "window_min": 95, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:10 on Thu 18 Mar to 05:17 on Fri 19 Mar.", "fact": "2038-03-18T12:10:00Z → 2038-03-19T09:17:05Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:18 on the 17th, 18:43–20:18 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 95 minutes on the 17th and 95 of 95 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32354 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Thursday 18 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-18", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Thursday 18 March. Trayodaśī runs from 08:10 on Thu 18 Mar to 05:17 on Fri 19 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-03-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12423, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-03-20T01:53:24-04:00", "utc": "2038-03-20T05:53:24Z", "ms": 2152677204166.8276 }, "end": { "local": "2038-03-20T22:09:38-04:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-20T01:53:24-04:00", "utc": "2038-03-20T05:53:24Z", "ms": 2152677204166.8276 }, "end": { "local": "2038-03-20T22:09:38-04:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 } }, "kaala": "sayahna", "days": [ { "local_date": "2038-03-19", "window": { "start": { "local": "2038-03-19T16:17:27-04:00", "utc": "2038-03-19T20:17:27Z", "ms": 2152642647487.978 }, "end": { "local": "2038-03-19T18:42:36-04:00", "utc": "2038-03-19T22:42:36Z", "ms": 2152651356196.5996 } }, "covered_min": 0, "window_min": 145, "qualifies": false }, { "local_date": "2038-03-20", "window": { "start": { "local": "2038-03-20T16:17:20-04:00", "utc": "2038-03-20T20:17:20Z", "ms": 2152729039908.7903 }, "end": { "local": "2038-03-20T18:42:35-04:00", "utc": "2038-03-20T22:42:35Z", "ms": 2152737755399.616 } }, "covered_min": 145, "window_min": 145, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:53 on Sat 20 Mar to 22:10 on Sat 20 Mar.", "fact": "2038-03-20T05:53:24Z → 2038-03-21T02:09:38Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:17–18:43 on the 19th, 16:17–18:43 on the 20th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 145 minutes on the 19th and 145 of 145 on the 20th.", "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 12423 s" }, { "step": "ruling", "text": "Holikā Dahana, Valencia, 2038: Saturday 20 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": "2038-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-20", "confidence": "determinate" } ], "quote": "In Valencia, Holikā Dahana 2038 falls on Saturday 20 March. Pūrṇimā runs from 01:53 on Sat 20 Mar to 22:10 on Sat 20 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12423, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-03-20T01:53:24-04:00", "utc": "2038-03-20T05:53:24Z", "ms": 2152677204166.8276 }, "end": { "local": "2038-03-20T22:09:38-04:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-20T01:53:24-04:00", "utc": "2038-03-20T05:53:24Z", "ms": 2152677204166.8276 }, "end": { "local": "2038-03-20T22:09:38-04:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 } }, "kaala": "sayahna", "days": [ { "local_date": "2038-03-19", "window": { "start": { "local": "2038-03-19T16:17:27-04:00", "utc": "2038-03-19T20:17:27Z", "ms": 2152642647487.978 }, "end": { "local": "2038-03-19T18:42:36-04:00", "utc": "2038-03-19T22:42:36Z", "ms": 2152651356196.5996 } }, "covered_min": 0, "window_min": 145, "qualifies": false }, { "local_date": "2038-03-20", "window": { "start": { "local": "2038-03-20T16:17:20-04:00", "utc": "2038-03-20T20:17:20Z", "ms": 2152729039908.7903 }, "end": { "local": "2038-03-20T18:42:35-04:00", "utc": "2038-03-20T22:42:35Z", "ms": 2152737755399.616 } }, "covered_min": 145, "window_min": 145, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2038-03-20", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:53 on Sat 20 Mar to 22:10 on Sat 20 Mar.", "fact": "2038-03-20T05:53:24Z → 2038-03-21T02:09:38Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:17–18:43 on the 19th, 16:17–18:43 on the 20th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 145 minutes on the 19th and 145 of 145 on the 20th.", "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 12423 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Saturday 20 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Valencia, 2038: Sunday 21 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": "2038-03-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-21", "confidence": "determinate" } ], "quote": "In Valencia, Holī 2038 falls on Sunday 21 March. It is kept the day after Holikā Dahana, which falls on Saturday 20 March. Pūrṇimā runs from 01:53 on Sat 20 Mar to 22:10 on Sat 20 Mar and covers all of sāyāhna on the 20th.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30365, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-03-20T22:09:38-04:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 }, "end": { "local": "2038-03-21T18:17:12-04:00", "utc": "2038-03-21T22:17:12Z", "ms": 2152822632149.7686 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-03-20T22:09:38-04:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 }, "end": { "local": "2038-03-21T18:17:12-04:00", "utc": "2038-03-21T22:17:12Z", "ms": 2152822632149.7686 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-03-21", "window": { "start": { "local": "2038-03-21T06:35:43-04:00", "utc": "2038-03-21T10:35:43Z", "ms": 2152780543111.377 }, "end": { "local": "2038-03-21T06:35:43-04:00", "utc": "2038-03-21T10:35:43Z", "ms": 2152780543111.377 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-03-22", "window": { "start": { "local": "2038-03-22T06:35:08-04:00", "utc": "2038-03-22T10:35:08Z", "ms": 2152866908179.0022 }, "end": { "local": "2038-03-22T06:35:08-04:00", "utc": "2038-03-22T10:35:08Z", "ms": 2152866908179.0022 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 22:10 on Sat 20 Mar to 18:17 on Sun 21 Mar.", "fact": "2038-03-21T02:09:38Z → 2038-03-21T22:17:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:36 on the 21st and 06:35 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 21st and is not on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30365 s" }, { "step": "ruling", "text": "Vasantotsava, Valencia, 2038: Sunday 21 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": "2038-03-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-21", "confidence": "determinate" } ], "quote": "In Valencia, Vasantotsava 2038 falls on Sunday 21 March. Pratipadā runs from 22:10 on Sat 20 Mar to 18:17 on Sun 21 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-03-23", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36414, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-03-23T10:52:22-04:00", "utc": "2038-03-23T14:52:22Z", "ms": 2152968741515.631 }, "end": { "local": "2038-03-24T07:41:36-04:00", "utc": "2038-03-24T11:41:36Z", "ms": 2153043696220.9656 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-03-23T10:52:22-04:00", "utc": "2038-03-23T14:52:22Z", "ms": 2152968741515.631 }, "end": { "local": "2038-03-24T07:41:36-04:00", "utc": "2038-03-24T11:41:36Z", "ms": 2153043696220.9656 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-03-22", "window": { "start": { "local": "2038-03-22T20:35:33-04:00", "utc": "2038-03-23T00:35:33Z", "ms": 2152917333433.4504 }, "end": { "local": "2038-03-22T20:35:33-04:00", "utc": "2038-03-23T00:35:33Z", "ms": 2152917333433.4504 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-03-23", "window": { "start": { "local": "2038-03-23T21:34:43-04:00", "utc": "2038-03-24T01:34:43Z", "ms": 2153007282511.675 }, "end": { "local": "2038-03-23T21:34:43-04:00", "utc": "2038-03-24T01:34:43Z", "ms": 2153007282511.675 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:52 on Tue 23 Mar to 07:42 on Wed 24 Mar.", "fact": "2038-03-23T14:52:22Z → 2038-03-24T11:41:36Z" }, { "step": "kaala", "text": "Moonrise is at 20:36 on the 22nd and 21:35 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 22nd and is on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36414 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Tuesday 23 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": "2038-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-23", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Tuesday 23 March. Caturthī runs from 10:52 on Tue 23 Mar to 07:42 on Wed 24 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-03-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37089, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-03-27T01:55:11-04:00", "utc": "2038-03-27T05:55:11Z", "ms": 2153282111057.8328 }, "end": { "local": "2038-03-28T01:28:15-04:00", "utc": "2038-03-28T05:28:15Z", "ms": 2153366894955.0706 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-03-27T01:55:11-04:00", "utc": "2038-03-27T05:55:11Z", "ms": 2153282111057.8328 }, "end": { "local": "2038-03-28T01:28:15-04:00", "utc": "2038-03-28T05:28:15Z", "ms": 2153366894955.0706 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-03-27", "window": { "start": { "local": "2038-03-27T12:13:20-04:00", "utc": "2038-03-27T16:13:20Z", "ms": 2153319200406.4043 }, "end": { "local": "2038-03-27T13:01:20-04:00", "utc": "2038-03-27T17:01:20Z", "ms": 2153322080406.4043 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-03-28", "window": { "start": { "local": "2038-03-28T12:13:02-04:00", "utc": "2038-03-28T16:13:02Z", "ms": 2153405582358.856 }, "end": { "local": "2038-03-28T13:01:02-04:00", "utc": "2038-03-28T17:01:02Z", "ms": 2153408462358.856 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:55 on Sat 27 Mar to 01:28 on Sun 28 Mar.", "fact": "2038-03-27T05:55:11Z → 2038-03-28T05:28:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 27th, 12:13–13:01 on the 28th.", "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 27th and 0 of 48 on the 28th.", "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 37089 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Valencia, 2038: Saturday 27 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": "2038-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-27", "confidence": "determinate" } ], "quote": "In Valencia, Śītalāṣṭamī 2038 falls on Saturday 27 March. Aṣṭamī runs from 01:55 on Sat 27 Mar to 01:28 on Sun 28 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-03-30", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8748, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-03-30T02:38:38-04:00", "utc": "2038-03-30T06:38:38Z", "ms": 2153543918225.9338 }, "end": { "local": "2038-03-31T04:04:06-04:00", "utc": "2038-03-31T08:04:06Z", "ms": 2153635445791.954 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-03-30T02:38:38-04:00", "utc": "2038-03-30T06:38:38Z", "ms": 2153543918225.9338 }, "end": { "local": "2038-03-31T04:04:06-04:00", "utc": "2038-03-31T08:04:06Z", "ms": 2153635445791.954 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-03-30", "window": { "start": { "local": "2038-03-30T06:30:28-04:00", "utc": "2038-03-30T10:30:28Z", "ms": 2153557828303.3076 }, "end": { "local": "2038-03-30T06:30:28-04:00", "utc": "2038-03-30T10:30:28Z", "ms": 2153557828303.3076 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-03-31", "window": { "start": { "local": "2038-03-31T06:29:54-04:00", "utc": "2038-03-31T10:29:54Z", "ms": 2153644193616.1987 }, "end": { "local": "2038-03-31T06:29:54-04:00", "utc": "2038-03-31T10:29:54Z", "ms": 2153644193616.1987 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:39 on Tue 30 Mar to 04:04 on Wed 31 Mar.", "fact": "2038-03-30T06:38:38Z → 2038-03-31T08:04:06Z" }, { "step": "kaala", "text": "Sunrise is at 06:30 on the 30th and 06:30 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8748 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Valencia, 2038: Tuesday 30 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-30", "confidence": "determinate" } ], "quote": "In Valencia, Pāpamocanī Ekādaśī 2038 falls on Tuesday 30 March. Ekādaśī runs from 02:39 on Tue 30 Mar to 04:04 on Wed 31 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-03-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-04-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34609, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-04-01T05:53:28-04:00", "utc": "2038-04-01T09:53:28Z", "ms": 2153728407891.2617 }, "end": { "local": "2038-04-02T07:59:58-04:00", "utc": "2038-04-02T11:59:58Z", "ms": 2153822397851.5686 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-01T05:53:28-04:00", "utc": "2038-04-01T09:53:28Z", "ms": 2153728407891.2617 }, "end": { "local": "2038-04-02T07:59:58-04:00", "utc": "2038-04-02T11:59:58Z", "ms": 2153822397851.5686 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-03-31", "window": { "start": { "local": "2038-03-31T18:42:24-04:00", "utc": "2038-03-31T22:42:24Z", "ms": 2153688143657.8003 }, "end": { "local": "2038-03-31T20:16:39-04:00", "utc": "2038-04-01T00:16:39Z", "ms": 2153693799045.473 } }, "covered_min": 0, "window_min": 94, "qualifies": false }, { "local_date": "2038-04-01", "window": { "start": { "local": "2038-04-01T18:42:23-04:00", "utc": "2038-04-01T22:42:23Z", "ms": 2153774542790.5317 }, "end": { "local": "2038-04-01T20:16:34-04:00", "utc": "2038-04-02T00:16:34Z", "ms": 2153780193707.84 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:53 on Thu 1 Apr to 08:00 on Fri 2 Apr.", "fact": "2038-04-01T09:53:28Z → 2038-04-02T11:59:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:17 on the 31st, 18:42–20:17 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 94 minutes on the 31st and 94 of 94 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 34609 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Thursday 1 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-01", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Thursday 1 April. Trayodaśī runs from 05:53 on Thu 1 Apr to 08:00 on Fri 2 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-04-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-04-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25224, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-04-02T07:59:58-04:00", "utc": "2038-04-02T11:59:58Z", "ms": 2153822397851.5686 }, "end": { "local": "2038-04-03T10:17:59-04:00", "utc": "2038-04-03T14:17:59Z", "ms": 2153917078559.9949 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-02T07:59:58-04:00", "utc": "2038-04-02T11:59:58Z", "ms": 2153822397851.5686 }, "end": { "local": "2038-04-03T10:17:59-04:00", "utc": "2038-04-03T14:17:59Z", "ms": 2153917078559.9949 } }, "kaala": "nishita", "days": [ { "local_date": "2038-04-01", "window": { "start": { "local": "2038-04-02T00:11:34-04:00", "utc": "2038-04-02T04:11:34Z", "ms": 2153794293730.4382 }, "end": { "local": "2038-04-02T00:59:34-04:00", "utc": "2038-04-02T04:59:34Z", "ms": 2153797173730.4382 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-02", "window": { "start": { "local": "2038-04-03T00:11:16-04:00", "utc": "2038-04-03T04:11:16Z", "ms": 2153880676235.8403 }, "end": { "local": "2038-04-03T00:59:16-04:00", "utc": "2038-04-03T04:59:16Z", "ms": 2153883556235.8403 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:00 on Fri 2 Apr to 10:18 on Sat 3 Apr.", "fact": "2038-04-02T11:59:58Z → 2038-04-03T14:17:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:12–01:00 on the 1st, 00:11–00:59 on the 2nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25224 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Friday 2 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": "2038-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-02", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Friday 2 April. Caturdaśī runs from 08:00 on Fri 2 Apr to 10:18 on Sat 3 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-04-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 956, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-04-04T12:43:02-04:00", "utc": "2038-04-04T16:43:02Z", "ms": 2154012182425.5486 }, "end": { "local": "2038-04-05T15:11:20-04:00", "utc": "2038-04-05T19:11:20Z", "ms": 2154107479722.4233 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-04T12:43:02-04:00", "utc": "2038-04-04T16:43:02Z", "ms": 2154012182425.5486 }, "end": { "local": "2038-04-05T15:11:20-04:00", "utc": "2038-04-05T19:11:20Z", "ms": 2154107479722.4233 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-04", "window": { "start": { "local": "2038-04-04T12:10:59-04:00", "utc": "2038-04-04T16:10:59Z", "ms": 2154010258626.2349 }, "end": { "local": "2038-04-04T12:58:59-04:00", "utc": "2038-04-04T16:58:59Z", "ms": 2154013138626.2349 } }, "covered_min": 16, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-05", "window": { "start": { "local": "2038-04-05T12:10:42-04:00", "utc": "2038-04-05T16:10:42Z", "ms": 2154096641520.1682 }, "end": { "local": "2038-04-05T12:58:42-04:00", "utc": "2038-04-05T16:58:42Z", "ms": 2154099521520.1682 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:43 on Sun 4 Apr to 15:11 on Mon 5 Apr.", "fact": "2038-04-04T16:43:02Z → 2038-04-05T19:11:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:11–12:59 on the 4th, 12:11–12:59 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 16 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": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 956 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Valencia, 2038: Monday 5 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-05", "confidence": "determinate" } ], "quote": "In Valencia, Navarātrārambha (Caitra) (Chaitra Navratri) 2038 falls on Monday 5 April. Pratipadā runs from 12:43 on Sun 4 Apr to 15:11 on Mon 5 Apr and covers all of madhyāhna that midday. It also reaches the previous midday for 16 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16824, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-04-06T17:38:49-04:00", "utc": "2038-04-06T21:38:49Z", "ms": 2154202728821.8608 }, "end": { "local": "2038-04-07T20:00:26-04:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-06T17:38:49-04:00", "utc": "2038-04-06T21:38:49Z", "ms": 2154202728821.8608 }, "end": { "local": "2038-04-07T20:00:26-04:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-06", "window": { "start": { "local": "2038-04-06T12:10:25-04:00", "utc": "2038-04-06T16:10:25Z", "ms": 2154183024603.7258 }, "end": { "local": "2038-04-06T12:58:25-04:00", "utc": "2038-04-06T16:58:25Z", "ms": 2154185904603.7258 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-07", "window": { "start": { "local": "2038-04-07T12:10:08-04:00", "utc": "2038-04-07T16:10:08Z", "ms": 2154269407892.0508 }, "end": { "local": "2038-04-07T12:58:08-04:00", "utc": "2038-04-07T16:58:08Z", "ms": 2154272287892.0508 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 17:39 on Tue 6 Apr to 20:00 on Wed 7 Apr.", "fact": "2038-04-06T21:38:49Z → 2038-04-08T00:00:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 6th, 12:10–12:58 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16824 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Valencia, 2038: Wednesday 7 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-07", "confidence": "determinate" } ], "quote": "In Valencia, Gaurī Tṛtīyā (Gangaur) 2038 falls on Wednesday 7 April. Tṛtīyā runs from 17:39 on Tue 6 Apr to 20:00 on Wed 7 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16824, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-04-06T17:38:49-04:00", "utc": "2038-04-06T21:38:49Z", "ms": 2154202728821.8608 }, "end": { "local": "2038-04-07T20:00:26-04:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-06T17:38:49-04:00", "utc": "2038-04-06T21:38:49Z", "ms": 2154202728821.8608 }, "end": { "local": "2038-04-07T20:00:26-04:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-06", "window": { "start": { "local": "2038-04-06T12:10:25-04:00", "utc": "2038-04-06T16:10:25Z", "ms": 2154183024603.7258 }, "end": { "local": "2038-04-06T12:58:25-04:00", "utc": "2038-04-06T16:58:25Z", "ms": 2154185904603.7258 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-07", "window": { "start": { "local": "2038-04-07T12:10:08-04:00", "utc": "2038-04-07T16:10:08Z", "ms": 2154269407892.0508 }, "end": { "local": "2038-04-07T12:58:08-04:00", "utc": "2038-04-07T16:58:08Z", "ms": 2154272287892.0508 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 17:39 on Tue 6 Apr to 20:00 on Wed 7 Apr.", "fact": "2038-04-06T21:38:49Z → 2038-04-08T00:00:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 6th, 12:10–12:58 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16824 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Valencia, 2038: Wednesday 7 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-07", "confidence": "determinate" } ], "quote": "In Valencia, Saubhāgya Śayana Vrata 2038 falls on Wednesday 7 April. Tṛtīyā runs from 17:39 on Tue 6 Apr to 20:00 on Wed 7 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-04-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25338, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-04-07T20:00:26-04:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 }, "end": { "local": "2038-04-08T22:09:35-04:00", "utc": "2038-04-09T02:09:35Z", "ms": 2154391774572.5332 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-07T20:00:26-04:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 }, "end": { "local": "2038-04-08T22:09:35-04:00", "utc": "2038-04-09T02:09:35Z", "ms": 2154391774572.5332 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-07", "window": { "start": { "local": "2038-04-07T12:10:08-04:00", "utc": "2038-04-07T16:10:08Z", "ms": 2154269407892.0508 }, "end": { "local": "2038-04-07T12:58:08-04:00", "utc": "2038-04-07T16:58:08Z", "ms": 2154272287892.0508 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-08", "window": { "start": { "local": "2038-04-08T12:09:51-04:00", "utc": "2038-04-08T16:09:51Z", "ms": 2154355791400.1582 }, "end": { "local": "2038-04-08T12:57:51-04:00", "utc": "2038-04-08T16:57:51Z", "ms": 2154358671400.1582 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:00 on Wed 7 Apr to 22:10 on Thu 8 Apr.", "fact": "2038-04-08T00:00:26Z → 2038-04-09T02:09:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 7th, 12:10–12:58 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25338 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Thursday 8 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": "2038-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-08", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Thursday 8 April. Caturthī runs from 20:00 on Wed 7 Apr to 22:10 on Thu 8 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-04-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33103, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-04-08T22:09:35-04:00", "utc": "2038-04-09T02:09:35Z", "ms": 2154391774572.5332 }, "end": { "local": "2038-04-09T23:58:06-04:00", "utc": "2038-04-10T03:58:06Z", "ms": 2154484685796.394 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-08T22:09:35-04:00", "utc": "2038-04-09T02:09:35Z", "ms": 2154391774572.5332 }, "end": { "local": "2038-04-09T23:58:06-04:00", "utc": "2038-04-10T03:58:06Z", "ms": 2154484685796.394 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-08", "window": { "start": { "local": "2038-04-08T12:09:51-04:00", "utc": "2038-04-08T16:09:51Z", "ms": 2154355791400.1582 }, "end": { "local": "2038-04-08T12:57:51-04:00", "utc": "2038-04-08T16:57:51Z", "ms": 2154358671400.1582 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-09", "window": { "start": { "local": "2038-04-09T12:09:35-04:00", "utc": "2038-04-09T16:09:35Z", "ms": 2154442175142.982 }, "end": { "local": "2038-04-09T12:57:35-04:00", "utc": "2038-04-09T16:57:35Z", "ms": 2154445055142.982 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:10 on Thu 8 Apr to 23:58 on Fri 9 Apr.", "fact": "2038-04-09T02:09:35Z → 2038-04-10T03:58:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 8th, 12:10–12:58 on the 9th.", "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 8th and 48 of 48 on the 9th.", "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 33103 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Valencia, 2038: Friday 9 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-09", "confidence": "determinate" } ], "quote": "In Valencia, Lakṣmī Pañcamī 2038 falls on Friday 9 April. Pañcamī runs from 22:10 on Thu 8 Apr to 23:58 on Fri 9 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36650, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-04-12T01:57:58-04:00", "utc": "2038-04-12T05:57:58Z", "ms": 2154664678273.1921 }, "end": { "local": "2038-04-13T01:54:15-04:00", "utc": "2038-04-13T05:54:15Z", "ms": 2154750854961.7395 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-12T01:57:58-04:00", "utc": "2038-04-12T05:57:58Z", "ms": 2154664678273.1921 }, "end": { "local": "2038-04-13T01:54:15-04:00", "utc": "2038-04-13T05:54:15Z", "ms": 2154750854961.7395 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-12", "window": { "start": { "local": "2038-04-12T12:08:48-04:00", "utc": "2038-04-12T16:08:48Z", "ms": 2154701327929.058 }, "end": { "local": "2038-04-12T12:56:48-04:00", "utc": "2038-04-12T16:56:48Z", "ms": 2154704207929.058 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-13", "window": { "start": { "local": "2038-04-13T12:08:33-04:00", "utc": "2038-04-13T16:08:33Z", "ms": 2154787712760.631 }, "end": { "local": "2038-04-13T12:56:33-04:00", "utc": "2038-04-13T16:56:33Z", "ms": 2154790592760.631 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:58 on Mon 12 Apr to 01:54 on Tue 13 Apr.", "fact": "2038-04-12T05:57:58Z → 2038-04-13T05:54:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 12th, 12:09–12:57 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36650 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Valencia, 2038: Monday 12 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhavani-utpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-12", "confidence": "determinate" } ], "quote": "In Valencia, Bhavānī Utpatti 2038 falls on Monday 12 April. Aṣṭamī runs from 01:58 on Mon 12 Apr to 01:54 on Tue 13 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16684, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2038-04-14T01:44:07-04:00", "utc": "2038-04-14T05:44:07Z", "ms": 2154836647268.6467 }, "end": { "local": "2038-05-14T22:32:35-04:00", "utc": "2038-05-15T02:32:35Z", "ms": 2157503555328.6284 } }, "span": { "of": "transit", "start": { "local": "2038-04-14T01:44:07-04:00", "utc": "2038-04-14T05:44:07Z", "ms": 2154836647268.6467 }, "end": { "local": "2038-04-14T01:44:07-04:00", "utc": "2038-04-14T05:44:07Z", "ms": 2154836647268.6467 } }, "kaala": "day", "days": [ { "local_date": "2038-04-13", "window": { "start": { "local": "2038-04-13T06:22:42-04:00", "utc": "2038-04-13T10:22:42Z", "ms": 2154766961997.627 }, "end": { "local": "2038-04-14T06:22:11-04:00", "utc": "2038-04-14T10:22:11Z", "ms": 2154853330936.224 } }, "covered_min": 1, "window_min": 1439, "qualifies": true }, { "local_date": "2038-04-14", "window": { "start": { "local": "2038-04-14T06:22:11-04:00", "utc": "2038-04-14T10:22:11Z", "ms": 2154853330936.224 }, "end": { "local": "2038-04-15T06:21:40-04:00", "utc": "2038-04-15T10:21:40Z", "ms": 2154939700275.7312 } }, "covered_min": 0, "window_min": 1439, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 01:44 on Wed 14 Apr.", "fact": "2038-04-14T05:44:07Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:23 on the 13th, and from 06:22 on the 14th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 16684 s" }, { "step": "ruling", "text": "Vaiśākhī, Valencia, 2038: Tuesday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2038-04-14", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "2038-04-14", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Valencia, Vaiśākhī 2038 falls on Tuesday 13 April. The Sun enters Meṣa at 01:44 on Wed 14 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 14 April.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36858, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2038-04-13T01:54:15-04:00", "utc": "2038-04-13T05:54:15Z", "ms": 2154750854961.7395 }, "end": { "local": "2038-04-14T01:02:21-04:00", "utc": "2038-04-14T05:02:21Z", "ms": 2154834140617.3677 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-13T01:54:15-04:00", "utc": "2038-04-13T05:54:15Z", "ms": 2154750854961.7395 }, "end": { "local": "2038-04-14T01:02:21-04:00", "utc": "2038-04-14T05:02:21Z", "ms": 2154834140617.3677 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-13", "window": { "start": { "local": "2038-04-13T12:08:33-04:00", "utc": "2038-04-13T16:08:33Z", "ms": 2154787712760.631 }, "end": { "local": "2038-04-13T12:56:33-04:00", "utc": "2038-04-13T16:56:33Z", "ms": 2154790592760.631 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-14", "window": { "start": { "local": "2038-04-14T12:08:18-04:00", "utc": "2038-04-14T16:08:18Z", "ms": 2154874097902.8833 }, "end": { "local": "2038-04-14T12:56:18-04:00", "utc": "2038-04-14T16:56:18Z", "ms": 2154876977902.8833 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 01:54 on Tue 13 Apr to 01:02 on Wed 14 Apr.", "fact": "2038-04-13T05:54:15Z → 2038-04-14T05:02:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 13th, 12:08–12:56 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36858 s" }, { "step": "ruling", "text": "Rāma Navamī, Valencia, 2038: Tuesday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rama-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti." } ], "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-13", "confidence": "determinate" } ], "quote": "In Valencia, Rāma Navamī 2038 falls on Tuesday 13 April. Navamī runs from 01:54 on Tue 13 Apr to 01:02 on Wed 14 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-04-15", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25161, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-04-14T23:22:19-04:00", "utc": "2038-04-15T03:22:19Z", "ms": 2154914539013.5962 }, "end": { "local": "2038-04-15T20:57:46-04:00", "utc": "2038-04-16T00:57:46Z", "ms": 2154992266174.1577 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-14T23:22:19-04:00", "utc": "2038-04-15T03:22:19Z", "ms": 2154914539013.5962 }, "end": { "local": "2038-04-15T20:57:46-04:00", "utc": "2038-04-16T00:57:46Z", "ms": 2154992266174.1577 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-04-15", "window": { "start": { "local": "2038-04-15T06:21:40-04:00", "utc": "2038-04-15T10:21:40Z", "ms": 2154939700275.7312 }, "end": { "local": "2038-04-15T06:21:40-04:00", "utc": "2038-04-15T10:21:40Z", "ms": 2154939700275.7312 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-04-16", "window": { "start": { "local": "2038-04-16T06:21:10-04:00", "utc": "2038-04-16T10:21:10Z", "ms": 2155026070036.8196 }, "end": { "local": "2038-04-16T06:21:10-04:00", "utc": "2038-04-16T10:21:10Z", "ms": 2155026070036.8196 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:22 on Wed 14 Apr to 20:58 on Thu 15 Apr.", "fact": "2038-04-15T03:22:19Z → 2038-04-16T00:57:46Z" }, { "step": "kaala", "text": "Sunrise is at 06:22 on the 15th and 06:21 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 25161 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Valencia, 2038: Thursday 15 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-15", "confidence": "determinate" } ], "quote": "In Valencia, Kāmadā Ekādaśī 2038 falls on Thursday 15 April. Ekādaśī runs from 23:22 on Wed 14 Apr to 20:58 on Thu 15 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-04-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-04-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2830, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-04-16T17:55:18-04:00", "utc": "2038-04-16T21:55:18Z", "ms": 2155067718407.9248 }, "end": { "local": "2038-04-17T14:23:48-04:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-16T17:55:18-04:00", "utc": "2038-04-16T21:55:18Z", "ms": 2155067718407.9248 }, "end": { "local": "2038-04-17T14:23:48-04:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-04-16", "window": { "start": { "local": "2038-04-16T18:42:28-04:00", "utc": "2038-04-16T22:42:28Z", "ms": 2155070548334.2598 }, "end": { "local": "2038-04-16T20:15:34-04:00", "utc": "2038-04-17T00:15:34Z", "ms": 2155076133921.8154 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "2038-04-17", "window": { "start": { "local": "2038-04-17T18:42:30-04:00", "utc": "2038-04-17T22:42:30Z", "ms": 2155156950481.3909 }, "end": { "local": "2038-04-17T20:15:32-04:00", "utc": "2038-04-18T00:15:32Z", "ms": 2155162531871.8943 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:55 on Fri 16 Apr to 14:24 on Sat 17 Apr.", "fact": "2038-04-16T21:55:18Z → 2038-04-17T18:23:48Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:16 on the 16th, 18:43–20:16 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 93 of 93 minutes on the 16th and 0 of 93 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 2830 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Friday 16 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-16", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Friday 16 April. Trayodaśī runs from 17:55 on Fri 16 Apr to 14:24 on Sat 17 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-04-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5293, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-04-16T17:55:18-04:00", "utc": "2038-04-16T21:55:18Z", "ms": 2155067718407.9248 }, "end": { "local": "2038-04-17T14:23:48-04:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-16T17:55:18-04:00", "utc": "2038-04-16T21:55:18Z", "ms": 2155067718407.9248 }, "end": { "local": "2038-04-17T14:23:48-04:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-16", "window": { "start": { "local": "2038-04-16T12:07:49-04:00", "utc": "2038-04-16T16:07:49Z", "ms": 2155046869185.5396 }, "end": { "local": "2038-04-16T12:55:49-04:00", "utc": "2038-04-16T16:55:49Z", "ms": 2155049749185.5396 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-17", "window": { "start": { "local": "2038-04-17T12:07:35-04:00", "utc": "2038-04-17T16:07:35Z", "ms": 2155133255361.1594 }, "end": { "local": "2038-04-17T12:55:35-04:00", "utc": "2038-04-17T16:55:35Z", "ms": 2155136135361.1594 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:55 on Fri 16 Apr to 14:24 on Sat 17 Apr.", "fact": "2038-04-16T21:55:18Z → 2038-04-17T18:23:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 16th, 12:08–12:56 on the 17th.", "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 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5293 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Valencia, 2038: Saturday 17 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": "2038-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-17", "confidence": "determinate" } ], "quote": "In Valencia, Anaṅga Trayodaśī 2038 falls on Saturday 17 April. Trayodaśī runs from 17:55 on Fri 16 Apr to 14:24 on Sat 17 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5293, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-04-17T14:23:48-04:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 }, "end": { "local": "2038-04-18T10:33:38-04:00", "utc": "2038-04-18T14:33:38Z", "ms": 2155214017857.3164 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-17T14:23:48-04:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 }, "end": { "local": "2038-04-18T10:33:38-04:00", "utc": "2038-04-18T14:33:38Z", "ms": 2155214017857.3164 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-17", "window": { "start": { "local": "2038-04-17T12:07:35-04:00", "utc": "2038-04-17T16:07:35Z", "ms": 2155133255361.1594 }, "end": { "local": "2038-04-17T12:55:35-04:00", "utc": "2038-04-17T16:55:35Z", "ms": 2155136135361.1594 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-18", "window": { "start": { "local": "2038-04-18T12:07:22-04:00", "utc": "2038-04-18T16:07:22Z", "ms": 2155219641917.651 }, "end": { "local": "2038-04-18T12:55:22-04:00", "utc": "2038-04-18T16:55:22Z", "ms": 2155222521917.651 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:24 on Sat 17 Apr to 10:34 on Sun 18 Apr.", "fact": "2038-04-17T18:23:48Z → 2038-04-18T14:33:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 17th, 12:07–12:55 on the 18th.", "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 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 5293 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Valencia, 2038: Sunday 18 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": "2038-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-18", "confidence": "determinate" } ], "quote": "In Valencia, Viṣṇudamanaka Caturdaśī 2038 falls on Sunday 18 April. Caturdaśī runs from 14:24 on Sat 17 Apr to 10:34 on Sun 18 Apr, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5624, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-04-18T10:33:38-04:00", "utc": "2038-04-18T14:33:38Z", "ms": 2155214017857.3164 }, "end": { "local": "2038-04-19T06:36:04-04:00", "utc": "2038-04-19T10:36:04Z", "ms": 2155286163707.0671 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-18T10:33:38-04:00", "utc": "2038-04-18T14:33:38Z", "ms": 2155214017857.3164 }, "end": { "local": "2038-04-19T06:36:04-04:00", "utc": "2038-04-19T10:36:04Z", "ms": 2155286163707.0671 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-18", "window": { "start": { "local": "2038-04-18T12:07:22-04:00", "utc": "2038-04-18T16:07:22Z", "ms": 2155219641917.651 }, "end": { "local": "2038-04-18T12:55:22-04:00", "utc": "2038-04-18T16:55:22Z", "ms": 2155222521917.651 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-19", "window": { "start": { "local": "2038-04-19T12:07:09-04:00", "utc": "2038-04-19T16:07:09Z", "ms": 2155306028874.061 }, "end": { "local": "2038-04-19T12:55:09-04:00", "utc": "2038-04-19T16:55:09Z", "ms": 2155308908874.061 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:34 on Sun 18 Apr to 06:36 on Mon 19 Apr.", "fact": "2038-04-18T14:33:38Z → 2038-04-19T10:36:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 18th, 12:07–12:55 on the 19th.", "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 18th and 0 of 48 on the 19th.", "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 5624 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Valencia, 2038: Sunday 18 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": "2038-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-18", "confidence": "determinate" } ], "quote": "In Valencia, Caitrī Pūrṇimā 2038 falls on Sunday 18 April. Pūrṇimā runs from 10:34 on Sun 18 Apr to 06:36 on Mon 19 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-04-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5062, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-04-21T19:53:21-04:00", "utc": "2038-04-21T23:53:21Z", "ms": 2155506800761.7656 }, "end": { "local": "2038-04-22T17:17:35-04:00", "utc": "2038-04-22T21:17:35Z", "ms": 2155583855087.7107 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-04-21T19:53:21-04:00", "utc": "2038-04-21T23:53:21Z", "ms": 2155506800761.7656 }, "end": { "local": "2038-04-22T17:17:35-04:00", "utc": "2038-04-22T21:17:35Z", "ms": 2155583855087.7107 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-04-21", "window": { "start": { "local": "2038-04-21T21:17:42-04:00", "utc": "2038-04-22T01:17:42Z", "ms": 2155511862299.0212 }, "end": { "local": "2038-04-21T21:17:42-04:00", "utc": "2038-04-22T01:17:42Z", "ms": 2155511862299.0212 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-04-22", "window": { "start": { "local": "2038-04-22T22:18:46-04:00", "utc": "2038-04-23T02:18:46Z", "ms": 2155601926465.6797 }, "end": { "local": "2038-04-22T22:18:46-04:00", "utc": "2038-04-23T02:18:46Z", "ms": 2155601926465.6797 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:53 on Wed 21 Apr to 17:18 on Thu 22 Apr.", "fact": "2038-04-21T23:53:21Z → 2038-04-22T21:17:35Z" }, { "step": "kaala", "text": "Moonrise is at 21:18 on the 21st and 22:19 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 21st and is not on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5062 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Wednesday 21 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": "2038-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-21", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Wednesday 21 April. Caturthī runs from 19:53 on Wed 21 Apr to 17:18 on Thu 22 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-04-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-04-29", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37896, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-04-28T17:34:57-04:00", "utc": "2038-04-28T21:34:57Z", "ms": 2156103296883.0698 }, "end": { "local": "2038-04-29T19:43:27-04:00", "utc": "2038-04-29T23:43:27Z", "ms": 2156197406658.011 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-04-28T17:34:57-04:00", "utc": "2038-04-28T21:34:57Z", "ms": 2156103296883.0698 }, "end": { "local": "2038-04-29T19:43:27-04:00", "utc": "2038-04-29T23:43:27Z", "ms": 2156197406658.011 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-04-29", "window": { "start": { "local": "2038-04-29T06:15:25-04:00", "utc": "2038-04-29T10:15:25Z", "ms": 2156148924928.3008 }, "end": { "local": "2038-04-29T06:15:25-04:00", "utc": "2038-04-29T10:15:25Z", "ms": 2156148924928.3008 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-04-30", "window": { "start": { "local": "2038-04-30T06:15:03-04:00", "utc": "2038-04-30T10:15:03Z", "ms": 2156235302708.0015 }, "end": { "local": "2038-04-30T06:15:03-04:00", "utc": "2038-04-30T10:15:03Z", "ms": 2156235302708.0015 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:35 on Wed 28 Apr to 19:43 on Thu 29 Apr.", "fact": "2038-04-28T21:34:57Z → 2038-04-29T23:43:27Z" }, { "step": "kaala", "text": "Sunrise is at 06:15 on the 29th and 06:15 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37896 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Valencia, 2038: Thursday 29 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-29", "confidence": "determinate" } ], "quote": "In Valencia, Varūthinī Ekādaśī 2038 falls on Thursday 29 April. Ekādaśī runs from 17:35 on Wed 28 Apr to 19:43 on Thu 29 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-04-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-05-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6593, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-04-30T22:05:33-04:00", "utc": "2038-05-01T02:05:33Z", "ms": 2156292332534.0205 }, "end": { "local": "2038-05-02T00:33:02-04:00", "utc": "2038-05-02T04:33:02Z", "ms": 2156387582298.2776 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-04-30T22:05:33-04:00", "utc": "2038-05-01T02:05:33Z", "ms": 2156292332534.0205 }, "end": { "local": "2038-05-02T00:33:02-04:00", "utc": "2038-05-02T04:33:02Z", "ms": 2156387582298.2776 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-04-30", "window": { "start": { "local": "2038-04-30T18:43:30-04:00", "utc": "2038-04-30T22:43:30Z", "ms": 2156280209905.126 }, "end": { "local": "2038-04-30T20:15:39-04:00", "utc": "2038-05-01T00:15:39Z", "ms": 2156285739407.733 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "2038-05-01", "window": { "start": { "local": "2038-05-01T18:43:37-04:00", "utc": "2038-05-01T22:43:37Z", "ms": 2156366617171.314 }, "end": { "local": "2038-05-01T20:15:43-04:00", "utc": "2038-05-02T00:15:43Z", "ms": 2156372142926.9038 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:06 on Fri 30 Apr to 00:33 on Sun 2 May.", "fact": "2038-05-01T02:05:33Z → 2038-05-02T04:33:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:16 on the 30th, 18:44–20:16 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 92 minutes on the 30th and 92 of 92 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 6593 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Saturday 1 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-01", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Saturday 1 May. Trayodaśī runs from 22:06 on Fri 30 Apr to 00:33 on Sun 2 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-05-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-05-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-02", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1196, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-05-02T00:33:02-04:00", "utc": "2038-05-02T04:33:02Z", "ms": 2156387582298.2776 }, "end": { "local": "2038-05-03T02:59:25-04:00", "utc": "2038-05-03T06:59:25Z", "ms": 2156482765367.7212 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-02T00:33:02-04:00", "utc": "2038-05-02T04:33:02Z", "ms": 2156387582298.2776 }, "end": { "local": "2038-05-03T02:59:25-04:00", "utc": "2038-05-03T06:59:25Z", "ms": 2156482765367.7212 } }, "kaala": "nishita", "days": [ { "local_date": "2038-05-01", "window": { "start": { "local": "2038-05-02T00:04:59-04:00", "utc": "2038-05-02T04:04:59Z", "ms": 2156385898754.776 }, "end": { "local": "2038-05-02T00:52:59-04:00", "utc": "2038-05-02T04:52:59Z", "ms": 2156388778754.776 } }, "covered_min": 20, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-02", "window": { "start": { "local": "2038-05-03T00:04:53-04:00", "utc": "2038-05-03T04:04:53Z", "ms": 2156472292521.21 }, "end": { "local": "2038-05-03T00:52:53-04:00", "utc": "2038-05-03T04:52:53Z", "ms": 2156475172521.21 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:33 on Sun 2 May to 02:59 on Mon 3 May.", "fact": "2038-05-02T04:33:02Z → 2038-05-03T06:59:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:05–00:53 on the 1st, 00:05–00:53 on the 2nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 20 of 48 minutes on the 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1196 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Sunday 2 May.", "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": "2038-05-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-02", "confidence": "boundary" } ], "quote": "In Valencia, Śivarātri 2038 falls on Sunday 2 May. Caturdaśī runs from 00:33 on Sun 2 May to 02:59 on Mon 3 May and covers all of niśītha that night. It also reaches the previous night for 20 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/valencia/festivals/2038/shivaratri?on=2038-05-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27669, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-05-06T09:25:47-04:00", "utc": "2038-05-06T13:25:47Z", "ms": 2156765146912.162 }, "end": { "local": "2038-05-07T11:03:20-04:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-06T09:25:47-04:00", "utc": "2038-05-06T13:25:47Z", "ms": 2156765146912.162 }, "end": { "local": "2038-05-07T11:03:20-04:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-06", "window": { "start": { "local": "2038-05-06T18:44:19-04:00", "utc": "2038-05-06T22:44:19Z", "ms": 2156798659405.8472 }, "end": { "local": "2038-05-06T20:16:07-04:00", "utc": "2038-05-07T00:16:07Z", "ms": 2156804167071.6035 } }, "covered_min": 92, "window_min": 92, "qualifies": true }, { "local_date": "2038-05-07", "window": { "start": { "local": "2038-05-07T18:44:29-04:00", "utc": "2038-05-07T22:44:29Z", "ms": 2156885069006.6484 }, "end": { "local": "2038-05-07T20:16:13-04:00", "utc": "2038-05-08T00:16:13Z", "ms": 2156890573193.4055 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 09:26 on Thu 6 May to 11:03 on Fri 7 May.", "fact": "2038-05-06T13:25:47Z → 2038-05-07T15:03:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:44–20:16 on the 6th, 18:44–20:16 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 92 of 92 minutes on the 6th and 0 of 92 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27669 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Valencia, 2038: Thursday 6 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-06", "confidence": "determinate" } ], "quote": "In Valencia, Paraśurāma Jayantī 2038 falls on Thursday 6 May. Tṛtīyā runs from 09:26 on Thu 6 May to 11:03 on Fri 7 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2399, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-05-06T09:25:47-04:00", "utc": "2038-05-06T13:25:47Z", "ms": 2156765146912.162 }, "end": { "local": "2038-05-07T11:03:20-04:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-06T09:25:47-04:00", "utc": "2038-05-06T13:25:47Z", "ms": 2156765146912.162 }, "end": { "local": "2038-05-07T11:03:20-04:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 } }, "kaala": "purvahna", "days": [ { "local_date": "2038-05-06", "window": { "start": { "local": "2038-05-06T06:13:04-04:00", "utc": "2038-05-06T10:13:04Z", "ms": 2156753584130.6982 }, "end": { "local": "2038-05-06T10:23:29-04:00", "utc": "2038-05-06T14:23:29Z", "ms": 2156768609222.4146 } }, "covered_min": 58, "window_min": 250, "qualifies": true }, { "local_date": "2038-05-07", "window": { "start": { "local": "2038-05-07T06:12:47-04:00", "utc": "2038-05-07T10:12:47Z", "ms": 2156839966899.0198 }, "end": { "local": "2038-05-07T10:23:21-04:00", "utc": "2038-05-07T14:23:21Z", "ms": 2156855000934.896 } }, "covered_min": 251, "window_min": 251, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 09:26 on Thu 6 May to 11:03 on Fri 7 May.", "fact": "2038-05-06T13:25:47Z → 2038-05-07T15:03:20Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:13–10:23 on the 6th, 06:13–10:23 on the 7th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 58 of 250 minutes on the 6th and 251 of 251 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both forenoons qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 2399 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Valencia, 2038: Friday 7 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-07", "confidence": "determinate" } ], "quote": "In Valencia, Akṣaya Tṛtīyā 2038 falls on Friday 7 May. Tṛtīyā runs from 09:26 on Thu 6 May to 11:03 on Fri 7 May and covers all of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 58 minutes; by the rule the second forenoon is taken.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-05-07", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-07", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 772, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-05-07T11:03:20-04:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 }, "end": { "local": "2038-05-08T12:17:26-04:00", "utc": "2038-05-08T16:17:26Z", "ms": 2156948246360.424 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-07T11:03:20-04:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 }, "end": { "local": "2038-05-08T12:17:26-04:00", "utc": "2038-05-08T16:17:26Z", "ms": 2156948246360.424 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-07", "window": { "start": { "local": "2038-05-07T12:04:38-04:00", "utc": "2038-05-07T16:04:38Z", "ms": 2156861077952.834 }, "end": { "local": "2038-05-07T12:52:38-04:00", "utc": "2038-05-07T16:52:38Z", "ms": 2156863957952.834 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-08", "window": { "start": { "local": "2038-05-08T12:04:35-04:00", "utc": "2038-05-08T16:04:35Z", "ms": 2156947474693.3103 }, "end": { "local": "2038-05-08T12:52:35-04:00", "utc": "2038-05-08T16:52:35Z", "ms": 2156950354693.3103 } }, "covered_min": 13, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:03 on Fri 7 May to 12:17 on Sat 8 May.", "fact": "2038-05-07T15:03:20Z → 2038-05-08T16:17:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 7th, 12:05–12:53 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 13 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 772 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Friday 7 May.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-07", "confidence": "boundary" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Friday 7 May. Caturthī runs from 11:03 on Fri 7 May to 12:17 on Sat 8 May and covers all of madhyāhna that midday. It also reaches the next midday for 13 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/valencia/festivals/2038/vinayaka-chaturthi?on=2038-05-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-09", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 608, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-05-08T12:17:26-04:00", "utc": "2038-05-08T16:17:26Z", "ms": 2156948246360.424 }, "end": { "local": "2038-05-09T13:02:40-04:00", "utc": "2038-05-09T17:02:40Z", "ms": 2157037359713.4321 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-08T12:17:26-04:00", "utc": "2038-05-08T16:17:26Z", "ms": 2156948246360.424 }, "end": { "local": "2038-05-09T13:02:40-04:00", "utc": "2038-05-09T17:02:40Z", "ms": 2157037359713.4321 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-08", "window": { "start": { "local": "2038-05-08T12:04:35-04:00", "utc": "2038-05-08T16:04:35Z", "ms": 2156947474693.3103 }, "end": { "local": "2038-05-08T12:52:35-04:00", "utc": "2038-05-08T16:52:35Z", "ms": 2156950354693.3103 } }, "covered_min": 35, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-09", "window": { "start": { "local": "2038-05-09T12:04:32-04:00", "utc": "2038-05-09T16:04:32Z", "ms": 2157033871988.8105 }, "end": { "local": "2038-05-09T12:52:32-04:00", "utc": "2038-05-09T16:52:32Z", "ms": 2157036751988.8105 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:17 on Sat 8 May to 13:03 on Sun 9 May.", "fact": "2038-05-08T16:17:26Z → 2038-05-09T17:02:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 8th, 12:05–12:53 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 35 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 608 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Valencia, 2038: Sunday 9 May.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-09", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-09", "confidence": "boundary" } ], "quote": "In Valencia, Śaṅkara Jayantī 2038 falls on Sunday 9 May. Pañcamī runs from 12:17 on Sat 8 May to 13:03 on Sun 9 May and covers all of madhyāhna that midday. It also reaches the previous midday for 35 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 345, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-05-10T13:13:47-04:00", "utc": "2038-05-10T17:13:47Z", "ms": 2157124427234.6833 }, "end": { "local": "2038-05-11T12:46:43-04:00", "utc": "2038-05-11T16:46:43Z", "ms": 2157209203168.8245 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-10T13:13:47-04:00", "utc": "2038-05-10T17:13:47Z", "ms": 2157124427234.6833 }, "end": { "local": "2038-05-11T12:46:43-04:00", "utc": "2038-05-11T16:46:43Z", "ms": 2157209203168.8245 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-10", "window": { "start": { "local": "2038-05-10T12:04:30-04:00", "utc": "2038-05-10T16:04:30Z", "ms": 2157120269838.0532 }, "end": { "local": "2038-05-10T12:52:30-04:00", "utc": "2038-05-10T16:52:30Z", "ms": 2157123149838.0532 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-05-11", "window": { "start": { "local": "2038-05-11T12:04:28-04:00", "utc": "2038-05-11T16:04:28Z", "ms": 2157206668239.517 }, "end": { "local": "2038-05-11T12:52:28-04:00", "utc": "2038-05-11T16:52:28Z", "ms": 2157209548239.517 } }, "covered_min": 42, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 13:14 on Mon 10 May to 12:47 on Tue 11 May.", "fact": "2038-05-10T17:13:47Z → 2038-05-11T16:46:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 10th, 12:04–12:52 on the 11th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 42 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 345 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Valencia, 2038: Tuesday 11 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-10", "confidence": "determinate" } ], "quote": "In Valencia, Gaṅgotpatti (Ganga Saptami) 2038 falls on Tuesday 11 May. Saptamī runs from 13:14 on Mon 10 May to 12:47 on Tue 11 May and covers 42 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-05-14", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4596, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-05-14T07:27:43-04:00", "utc": "2038-05-14T11:27:43Z", "ms": 2157449263480.1677 }, "end": { "local": "2038-05-15T04:32:02-04:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-14T07:27:43-04:00", "utc": "2038-05-14T11:27:43Z", "ms": 2157449263480.1677 }, "end": { "local": "2038-05-15T04:32:02-04:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-05-14", "window": { "start": { "local": "2038-05-14T06:11:07-04:00", "utc": "2038-05-14T10:11:07Z", "ms": 2157444667258.796 }, "end": { "local": "2038-05-14T06:11:07-04:00", "utc": "2038-05-14T10:11:07Z", "ms": 2157444667258.796 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-05-15", "window": { "start": { "local": "2038-05-15T06:10:56-04:00", "utc": "2038-05-15T10:10:56Z", "ms": 2157531056076.2534 }, "end": { "local": "2038-05-15T06:10:56-04:00", "utc": "2038-05-15T10:10:56Z", "ms": 2157531056076.2534 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:28 on Fri 14 May to 04:32 on Sat 15 May.", "fact": "2038-05-14T11:27:43Z → 2038-05-15T08:32:02Z" }, { "step": "kaala", "text": "Sunrise is at 06:11 on the 14th and 06:11 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 14th and is not on the 15th.", "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 4596 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Valencia, 2038: Friday 14 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-14", "confidence": "determinate" } ], "quote": "In Valencia, Mohinī Ekādaśī 2038 falls on Friday 14 May. Ekādaśī runs from 07:28 on Fri 14 May to 04:32 on Sat 15 May, and is current at sunrise on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-05-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27145, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-05-15T04:32:02-04:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "end": { "local": "2038-05-16T01:12:25-04:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-15T04:32:02-04:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "end": { "local": "2038-05-16T01:12:25-04:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-15", "window": { "start": { "local": "2038-05-15T12:04:27-04:00", "utc": "2038-05-15T16:04:27Z", "ms": 2157552267339.626 }, "end": { "local": "2038-05-15T12:52:27-04:00", "utc": "2038-05-15T16:52:27Z", "ms": 2157555147339.626 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-16", "window": { "start": { "local": "2038-05-16T12:04:28-04:00", "utc": "2038-05-16T16:04:28Z", "ms": 2157638668484.3804 }, "end": { "local": "2038-05-16T12:52:28-04:00", "utc": "2038-05-16T16:52:28Z", "ms": 2157641548484.3804 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 04:32 on Sat 15 May to 01:12 on Sun 16 May.", "fact": "2038-05-15T08:32:02Z → 2038-05-16T05:12:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 15th, 12:04–12:52 on the 16th.", "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 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27145 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Valencia, 2038: Saturday 15 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": "2038-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-15", "confidence": "determinate" } ], "quote": "In Valencia, Paraśurāma Dvādaśī 2038 falls on Saturday 15 May. Dvādaśī runs from 04:32 on Sat 15 May to 01:12 on Sun 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27145, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-05-15T04:32:02-04:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "end": { "local": "2038-05-16T01:12:25-04:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-15T04:32:02-04:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "end": { "local": "2038-05-16T01:12:25-04:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-15", "window": { "start": { "local": "2038-05-15T12:04:27-04:00", "utc": "2038-05-15T16:04:27Z", "ms": 2157552267339.626 }, "end": { "local": "2038-05-15T12:52:27-04:00", "utc": "2038-05-15T16:52:27Z", "ms": 2157555147339.626 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-16", "window": { "start": { "local": "2038-05-16T12:04:28-04:00", "utc": "2038-05-16T16:04:28Z", "ms": 2157638668484.3804 }, "end": { "local": "2038-05-16T12:52:28-04:00", "utc": "2038-05-16T16:52:28Z", "ms": 2157641548484.3804 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 04:32 on Sat 15 May to 01:12 on Sun 16 May.", "fact": "2038-05-15T08:32:02Z → 2038-05-16T05:12:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 15th, 12:04–12:52 on the 16th.", "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 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27145 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Valencia, 2038: Saturday 15 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": "2038-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-15", "confidence": "determinate" } ], "quote": "In Valencia, Rukmiṇī Dvādaśī 2038 falls on Saturday 15 May. Dvādaśī runs from 04:32 on Sat 15 May to 01:12 on Sun 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-16", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2901, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-05-16T21:37:47-04:00", "utc": "2038-05-17T01:37:47Z", "ms": 2157673067074.3174 }, "end": { "local": "2038-05-17T17:58:03-04:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-16T21:37:47-04:00", "utc": "2038-05-17T01:37:47Z", "ms": 2157673067074.3174 }, "end": { "local": "2038-05-17T17:58:03-04:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-16", "window": { "start": { "local": "2038-05-16T18:46:11-04:00", "utc": "2038-05-16T22:46:11Z", "ms": 2157662771297.4404 }, "end": { "local": "2038-05-16T20:17:27-04:00", "utc": "2038-05-17T00:17:27Z", "ms": 2157668246597.7236 } }, "covered_min": 0, "window_min": 91, "qualifies": false }, { "local_date": "2038-05-17", "window": { "start": { "local": "2038-05-17T18:46:24-04:00", "utc": "2038-05-17T22:46:24Z", "ms": 2157749184304.4563 }, "end": { "local": "2038-05-17T20:17:37-04:00", "utc": "2038-05-18T00:17:37Z", "ms": 2157754656692.727 } }, "covered_min": 0, "window_min": 91, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:38 on Sun 16 May to 17:58 on Mon 17 May.", "fact": "2038-05-17T01:37:47Z → 2038-05-17T21:58:03Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:17 on the 16th, 18:46–20:18 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 91 minutes on the 16th and 0 of 91 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 2901 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Valencia, 2038: Sunday 16 May.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "nrisimha-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Nrsimha caturdasi (pradosa vyapini — if it occurs on two successive days, the second day is to be observed, special when combined with naksatra 'Svati', yoga 'Siddhi' and 'Saturday')." } ], "not_evaluated": "The row calls the day special with Svātī nakṣatra, Siddhi yoga and a Saturday; none is tested.", "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-16", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-16", "confidence": "boundary" } ], "quote": "In Valencia, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2038 falls on Sunday 16 May. Caturdaśī runs from 21:38 on Sun 16 May to 17:58 on Mon 17 May, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/pradosha-vrata?on=2038-05-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4820, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-05-16T01:12:25-04:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 }, "end": { "local": "2038-05-16T21:37:47-04:00", "utc": "2038-05-17T01:37:47Z", "ms": 2157673067074.3174 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-16T01:12:25-04:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 }, "end": { "local": "2038-05-16T21:37:47-04:00", "utc": "2038-05-17T01:37:47Z", "ms": 2157673067074.3174 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-15", "window": { "start": { "local": "2038-05-15T18:45:59-04:00", "utc": "2038-05-15T22:45:59Z", "ms": 2157576358602.9985 }, "end": { "local": "2038-05-15T20:17:17-04:00", "utc": "2038-05-16T00:17:17Z", "ms": 2157581836878.775 } }, "covered_min": 0, "window_min": 91, "qualifies": false }, { "local_date": "2038-05-16", "window": { "start": { "local": "2038-05-16T18:46:11-04:00", "utc": "2038-05-16T22:46:11Z", "ms": 2157662771297.4404 }, "end": { "local": "2038-05-16T20:17:27-04:00", "utc": "2038-05-17T00:17:27Z", "ms": 2157668246597.7236 } }, "covered_min": 91, "window_min": 91, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:12 on Sun 16 May to 21:38 on Sun 16 May.", "fact": "2038-05-16T05:12:25Z → 2038-05-17T01:37:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:17 on the 15th, 18:46–20:17 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 91 minutes on the 15th and 91 of 91 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 4820 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Sunday 16 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": "2038-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-16", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Sunday 16 May. Trayodaśī runs from 01:12 on Sun 16 May to 21:38 on Sun 16 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-05-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5463, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-05-17T17:58:03-04:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "end": { "local": "2038-05-18T14:23:36-04:00", "utc": "2038-05-18T18:23:36Z", "ms": 2157819815661.7263 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-17T17:58:03-04:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "end": { "local": "2038-05-18T14:23:36-04:00", "utc": "2038-05-18T18:23:36Z", "ms": 2157819815661.7263 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-17", "window": { "start": { "local": "2038-05-17T12:04:30-04:00", "utc": "2038-05-17T16:04:30Z", "ms": 2157725070177.01 }, "end": { "local": "2038-05-17T12:52:30-04:00", "utc": "2038-05-17T16:52:30Z", "ms": 2157727950177.01 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-05-18", "window": { "start": { "local": "2038-05-18T12:04:32-04:00", "utc": "2038-05-18T16:04:32Z", "ms": 2157811472417.709 }, "end": { "local": "2038-05-18T12:52:32-04:00", "utc": "2038-05-18T16:52:32Z", "ms": 2157814352417.709 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:58 on Mon 17 May to 14:24 on Tue 18 May.", "fact": "2038-05-17T21:58:03Z → 2038-05-18T18:23:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 17th, 12:05–12:53 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5463 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Valencia, 2038: Tuesday 18 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": "2038-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-18", "confidence": "determinate" } ], "quote": "In Valencia, Buddha Pūrṇimā 2038 falls on Tuesday 18 May. Pūrṇimā runs from 17:58 on Mon 17 May to 14:24 on Tue 18 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5463, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-05-17T17:58:03-04:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "end": { "local": "2038-05-18T14:23:36-04:00", "utc": "2038-05-18T18:23:36Z", "ms": 2157819815661.7263 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-17T17:58:03-04:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "end": { "local": "2038-05-18T14:23:36-04:00", "utc": "2038-05-18T18:23:36Z", "ms": 2157819815661.7263 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-17", "window": { "start": { "local": "2038-05-17T12:04:30-04:00", "utc": "2038-05-17T16:04:30Z", "ms": 2157725070177.01 }, "end": { "local": "2038-05-17T12:52:30-04:00", "utc": "2038-05-17T16:52:30Z", "ms": 2157727950177.01 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-05-18", "window": { "start": { "local": "2038-05-18T12:04:32-04:00", "utc": "2038-05-18T16:04:32Z", "ms": 2157811472417.709 }, "end": { "local": "2038-05-18T12:52:32-04:00", "utc": "2038-05-18T16:52:32Z", "ms": 2157814352417.709 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:58 on Mon 17 May to 14:24 on Tue 18 May.", "fact": "2038-05-17T21:58:03Z → 2038-05-18T18:23:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 17th, 12:05–12:53 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5463 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Valencia, 2038: Tuesday 18 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": "2038-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-18", "confidence": "determinate" } ], "quote": "In Valencia, Sampat Gaurī Vrata 2038 falls on Tuesday 18 May. Pūrṇimā runs from 17:58 on Mon 17 May to 14:24 on Tue 18 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-05-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22473, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-05-21T05:52:41-04:00", "utc": "2038-05-21T09:52:41Z", "ms": 2158048361153.413 }, "end": { "local": "2038-05-22T04:15:33-04:00", "utc": "2038-05-22T08:15:33Z", "ms": 2158128933381.5962 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-21T05:52:41-04:00", "utc": "2038-05-21T09:52:41Z", "ms": 2158048361153.413 }, "end": { "local": "2038-05-22T04:15:33-04:00", "utc": "2038-05-22T08:15:33Z", "ms": 2158128933381.5962 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-05-20", "window": { "start": { "local": "2038-05-20T21:01:29-04:00", "utc": "2038-05-21T01:01:29Z", "ms": 2158016488552.5059 }, "end": { "local": "2038-05-20T21:01:29-04:00", "utc": "2038-05-21T01:01:29Z", "ms": 2158016488552.5059 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-05-21", "window": { "start": { "local": "2038-05-21T22:01:00-04:00", "utc": "2038-05-22T02:01:00Z", "ms": 2158106460133.4756 }, "end": { "local": "2038-05-21T22:01:00-04:00", "utc": "2038-05-22T02:01:00Z", "ms": 2158106460133.4756 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:53 on Fri 21 May to 04:16 on Sat 22 May.", "fact": "2038-05-21T09:52:41Z → 2038-05-22T08:15:33Z" }, { "step": "kaala", "text": "Moonrise is at 21:01 on the 20th and 22:01 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22473 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Friday 21 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": "2038-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-21", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Friday 21 May. Caturthī runs from 05:53 on Fri 21 May to 04:16 on Sat 22 May and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-05-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-05-29", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12708, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-05-28T09:41:31-04:00", "utc": "2038-05-28T13:41:31Z", "ms": 2158666891011.542 }, "end": { "local": "2038-05-29T12:06:46-04:00", "utc": "2038-05-29T16:06:46Z", "ms": 2158762006377.6685 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-28T09:41:31-04:00", "utc": "2038-05-28T13:41:31Z", "ms": 2158666891011.542 }, "end": { "local": "2038-05-29T12:06:46-04:00", "utc": "2038-05-29T16:06:46Z", "ms": 2158762006377.6685 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-05-28", "window": { "start": { "local": "2038-05-28T06:09:43-04:00", "utc": "2038-05-28T10:09:43Z", "ms": 2158654182739.7253 }, "end": { "local": "2038-05-28T06:09:43-04:00", "utc": "2038-05-28T10:09:43Z", "ms": 2158654182739.7253 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-05-29", "window": { "start": { "local": "2038-05-29T06:09:43-04:00", "utc": "2038-05-29T10:09:43Z", "ms": 2158740582616.7288 }, "end": { "local": "2038-05-29T06:09:43-04:00", "utc": "2038-05-29T10:09:43Z", "ms": 2158740582616.7288 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:42 on Fri 28 May to 12:07 on Sat 29 May.", "fact": "2038-05-28T13:41:31Z → 2038-05-29T16:06:46Z" }, { "step": "kaala", "text": "Sunrise is at 06:10 on the 28th and 06:10 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12708 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Valencia, 2038: Saturday 29 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-29", "confidence": "determinate" } ], "quote": "In Valencia, Aparā Ekādaśī 2038 falls on Saturday 29 May. Ekādaśī runs from 09:42 on Fri 28 May to 12:07 on Sat 29 May and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-05-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-05-30", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7450, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-05-30T14:30:58-04:00", "utc": "2038-05-30T18:30:58Z", "ms": 2158857058217.1162 }, "end": { "local": "2038-05-31T16:45:44-04:00", "utc": "2038-05-31T20:45:44Z", "ms": 2158951543590.295 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-30T14:30:58-04:00", "utc": "2038-05-30T18:30:58Z", "ms": 2158857058217.1162 }, "end": { "local": "2038-05-31T16:45:44-04:00", "utc": "2038-05-31T20:45:44Z", "ms": 2158951543590.295 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-30", "window": { "start": { "local": "2038-05-30T18:49:38-04:00", "utc": "2038-05-30T22:49:38Z", "ms": 2158872577720.981 }, "end": { "local": "2038-05-30T20:20:19-04:00", "utc": "2038-05-31T00:20:19Z", "ms": 2158878018641.487 } }, "covered_min": 91, "window_min": 91, "qualifies": true }, { "local_date": "2038-05-31", "window": { "start": { "local": "2038-05-31T18:49:54-04:00", "utc": "2038-05-31T22:49:54Z", "ms": 2158958993945.8704 }, "end": { "local": "2038-05-31T20:20:33-04:00", "utc": "2038-06-01T00:20:33Z", "ms": 2158964432983.7607 } }, "covered_min": 0, "window_min": 91, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:31 on Sun 30 May to 16:46 on Mon 31 May.", "fact": "2038-05-30T18:30:58Z → 2038-05-31T20:45:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:50–20:20 on the 30th, 18:50–20:21 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 91 of 91 minutes on the 30th and 0 of 91 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7450 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Sunday 30 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": "2038-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-30", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Sunday 30 May. Trayodaśī runs from 14:31 on Sun 30 May to 16:46 on Mon 31 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-05-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-05-31", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-05-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19267, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-05-31T16:45:44-04:00", "utc": "2038-05-31T20:45:44Z", "ms": 2158951543590.295 }, "end": { "local": "2038-06-01T18:44:53-04:00", "utc": "2038-06-01T22:44:53Z", "ms": 2159045093165.6843 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-31T16:45:44-04:00", "utc": "2038-05-31T20:45:44Z", "ms": 2158951543590.295 }, "end": { "local": "2038-06-01T18:44:53-04:00", "utc": "2038-06-01T22:44:53Z", "ms": 2159045093165.6843 } }, "kaala": "nishita", "days": [ { "local_date": "2038-05-31", "window": { "start": { "local": "2038-06-01T00:05:50-04:00", "utc": "2038-06-01T04:05:50Z", "ms": 2158977950337.9595 }, "end": { "local": "2038-06-01T00:53:50-04:00", "utc": "2038-06-01T04:53:50Z", "ms": 2158980830337.9595 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-06-01", "window": { "start": { "local": "2038-06-02T00:06:00-04:00", "utc": "2038-06-02T04:06:00Z", "ms": 2159064359906.0378 }, "end": { "local": "2038-06-02T00:54:00-04:00", "utc": "2038-06-02T04:54:00Z", "ms": 2159067239906.0378 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:46 on Mon 31 May to 18:45 on Tue 1 Jun.", "fact": "2038-05-31T20:45:44Z → 2038-06-01T22:44:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:06–00:54 on the 31st, 00:06–00:54 on the 1st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19267 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Monday 31 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": "2038-05-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-31", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Monday 31 May. Caturdaśī runs from 16:46 on Mon 31 May to 18:45 on Tue 1 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-05-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34751, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-06-04T22:33:40-04:00", "utc": "2038-06-05T02:33:40Z", "ms": 2159318019623.025 }, "end": { "local": "2038-06-05T23:00:14-04:00", "utc": "2038-06-06T03:00:14Z", "ms": 2159406014457.487 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-04T22:33:40-04:00", "utc": "2038-06-05T02:33:40Z", "ms": 2159318019623.025 }, "end": { "local": "2038-06-05T23:00:14-04:00", "utc": "2038-06-06T03:00:14Z", "ms": 2159406014457.487 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-04", "window": { "start": { "local": "2038-06-04T12:06:28-04:00", "utc": "2038-06-04T16:06:28Z", "ms": 2159280388388.393 }, "end": { "local": "2038-06-04T12:54:28-04:00", "utc": "2038-06-04T16:54:28Z", "ms": 2159283268388.393 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-06-05", "window": { "start": { "local": "2038-06-05T12:06:39-04:00", "utc": "2038-06-05T16:06:39Z", "ms": 2159366799034.0137 }, "end": { "local": "2038-06-05T12:54:39-04:00", "utc": "2038-06-05T16:54:39Z", "ms": 2159369679034.0137 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 22:34 on Fri 4 Jun to 23:00 on Sat 5 Jun.", "fact": "2038-06-05T02:33:40Z → 2038-06-06T03:00:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 4th, 12:07–12:55 on the 5th.", "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 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: purvaviddha → only-day · margin 34751 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Valencia, 2038: Saturday 5 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-05", "confidence": "determinate" } ], "quote": "In Valencia, Rambhā Tṛtīyā 2038 falls on Saturday 5 June. Tṛtīyā runs from 22:34 on Fri 4 Jun to 23:00 on Sat 5 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-06-06", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36284, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-06-05T23:00:14-04:00", "utc": "2038-06-06T03:00:14Z", "ms": 2159406014457.487 }, "end": { "local": "2038-06-06T22:59:34-04:00", "utc": "2038-06-07T02:59:34Z", "ms": 2159492373667.436 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-05T23:00:14-04:00", "utc": "2038-06-06T03:00:14Z", "ms": 2159406014457.487 }, "end": { "local": "2038-06-06T22:59:34-04:00", "utc": "2038-06-07T02:59:34Z", "ms": 2159492373667.436 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-05", "window": { "start": { "local": "2038-06-05T12:06:39-04:00", "utc": "2038-06-05T16:06:39Z", "ms": 2159366799034.0137 }, "end": { "local": "2038-06-05T12:54:39-04:00", "utc": "2038-06-05T16:54:39Z", "ms": 2159369679034.0137 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-06-06", "window": { "start": { "local": "2038-06-06T12:06:50-04:00", "utc": "2038-06-06T16:06:50Z", "ms": 2159453209982.545 }, "end": { "local": "2038-06-06T12:54:50-04:00", "utc": "2038-06-06T16:54:50Z", "ms": 2159456089982.545 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:00 on Sat 5 Jun to 23:00 on Sun 6 Jun.", "fact": "2038-06-06T03:00:14Z → 2038-06-07T02:59:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 5th, 12:07–12:55 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36284 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Sunday 6 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": "2038-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-06", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Sunday 6 June. Caturthī runs from 23:00 on Sat 5 Jun to 23:00 on Sun 6 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-06-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31030, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-06-07T22:30:29-04:00", "utc": "2038-06-08T02:30:29Z", "ms": 2159577029452.3748 }, "end": { "local": "2038-06-08T21:32:23-04:00", "utc": "2038-06-09T01:32:23Z", "ms": 2159659942582.9983 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-07T22:30:29-04:00", "utc": "2038-06-08T02:30:29Z", "ms": 2159577029452.3748 }, "end": { "local": "2038-06-08T21:32:23-04:00", "utc": "2038-06-09T01:32:23Z", "ms": 2159659942582.9983 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-07", "window": { "start": { "local": "2038-06-07T12:07:01-04:00", "utc": "2038-06-07T16:07:01Z", "ms": 2159539621210.6475 }, "end": { "local": "2038-06-07T12:55:01-04:00", "utc": "2038-06-07T16:55:01Z", "ms": 2159542501210.6475 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-06-08", "window": { "start": { "local": "2038-06-08T12:07:13-04:00", "utc": "2038-06-08T16:07:13Z", "ms": 2159626032694.9016 }, "end": { "local": "2038-06-08T12:55:13-04:00", "utc": "2038-06-08T16:55:13Z", "ms": 2159628912694.9016 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:30 on Mon 7 Jun to 21:32 on Tue 8 Jun.", "fact": "2038-06-08T02:30:29Z → 2038-06-09T01:32:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 7th, 12:07–12:55 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31030 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Valencia, 2038: Tuesday 8 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-06-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-08", "confidence": "determinate" } ], "quote": "In Valencia, Araṇya Gaurī Vrata 2038 falls on Tuesday 8 June. Ṣaṣṭhī runs from 22:30 on Mon 7 Jun to 21:32 on Tue 8 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31030, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-06-07T22:30:29-04:00", "utc": "2038-06-08T02:30:29Z", "ms": 2159577029452.3748 }, "end": { "local": "2038-06-08T21:32:23-04:00", "utc": "2038-06-09T01:32:23Z", "ms": 2159659942582.9983 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-07T22:30:29-04:00", "utc": "2038-06-08T02:30:29Z", "ms": 2159577029452.3748 }, "end": { "local": "2038-06-08T21:32:23-04:00", "utc": "2038-06-09T01:32:23Z", "ms": 2159659942582.9983 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-07", "window": { "start": { "local": "2038-06-07T12:07:01-04:00", "utc": "2038-06-07T16:07:01Z", "ms": 2159539621210.6475 }, "end": { "local": "2038-06-07T12:55:01-04:00", "utc": "2038-06-07T16:55:01Z", "ms": 2159542501210.6475 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-06-08", "window": { "start": { "local": "2038-06-08T12:07:13-04:00", "utc": "2038-06-08T16:07:13Z", "ms": 2159626032694.9016 }, "end": { "local": "2038-06-08T12:55:13-04:00", "utc": "2038-06-08T16:55:13Z", "ms": 2159628912694.9016 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:30 on Mon 7 Jun to 21:32 on Tue 8 Jun.", "fact": "2038-06-08T02:30:29Z → 2038-06-09T01:32:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 7th, 12:07–12:55 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31030 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Valencia, 2038: Tuesday 8 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-06-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-08", "confidence": "determinate" } ], "quote": "In Valencia, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2038 falls on Tuesday 8 June. Ṣaṣṭhī runs from 22:30 on Mon 7 Jun to 21:32 on Tue 8 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-06-13", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14743, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-06-12T13:11:44-04:00", "utc": "2038-06-12T17:11:44Z", "ms": 2159975503852.815 }, "end": { "local": "2038-06-13T10:16:45-04:00", "utc": "2038-06-13T14:16:45Z", "ms": 2160051405469.958 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-12T13:11:44-04:00", "utc": "2038-06-12T17:11:44Z", "ms": 2159975503852.815 }, "end": { "local": "2038-06-13T10:16:45-04:00", "utc": "2038-06-13T14:16:45Z", "ms": 2160051405469.958 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-06-12", "window": { "start": { "local": "2038-06-12T06:10:53-04:00", "utc": "2038-06-12T10:10:53Z", "ms": 2159950253135.1394 }, "end": { "local": "2038-06-12T06:10:53-04:00", "utc": "2038-06-12T10:10:53Z", "ms": 2159950253135.1394 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-06-13", "window": { "start": { "local": "2038-06-13T06:11:03-04:00", "utc": "2038-06-13T10:11:03Z", "ms": 2160036662608.2375 }, "end": { "local": "2038-06-13T06:11:03-04:00", "utc": "2038-06-13T10:11:03Z", "ms": 2160036662608.2375 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:12 on Sat 12 Jun to 10:17 on Sun 13 Jun.", "fact": "2038-06-12T17:11:44Z → 2038-06-13T14:16:45Z" }, { "step": "kaala", "text": "Sunrise is at 06:11 on the 12th and 06:11 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14743 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Valencia, 2038: Sunday 13 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": "2038-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-13", "confidence": "determinate" } ], "quote": "In Valencia, Nirjalā Ekādaśī 2038 falls on Sunday 13 June. Ekādaśī runs from 13:12 on Sat 12 Jun to 10:17 on Sun 13 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-06-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6688, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-06-13T10:16:45-04:00", "utc": "2038-06-13T14:16:45Z", "ms": 2160051405469.958 }, "end": { "local": "2038-06-14T07:13:22-04:00", "utc": "2038-06-14T11:13:22Z", "ms": 2160126802113.1277 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-13T10:16:45-04:00", "utc": "2038-06-13T14:16:45Z", "ms": 2160051405469.958 }, "end": { "local": "2038-06-14T07:13:22-04:00", "utc": "2038-06-14T11:13:22Z", "ms": 2160126802113.1277 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-13", "window": { "start": { "local": "2038-06-13T12:08:13-04:00", "utc": "2038-06-13T16:08:13Z", "ms": 2160058093166.04 }, "end": { "local": "2038-06-13T12:56:13-04:00", "utc": "2038-06-13T16:56:13Z", "ms": 2160060973166.04 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-06-14", "window": { "start": { "local": "2038-06-14T12:08:26-04:00", "utc": "2038-06-14T16:08:26Z", "ms": 2160144505722.3528 }, "end": { "local": "2038-06-14T12:56:26-04:00", "utc": "2038-06-14T16:56:26Z", "ms": 2160147385722.3528 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:17 on Sun 13 Jun to 07:13 on Mon 14 Jun.", "fact": "2038-06-13T14:16:45Z → 2038-06-14T11:13:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 13th, 12:08–12:56 on the 14th.", "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 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6688 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Valencia, 2038: Sunday 13 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-13", "confidence": "determinate" } ], "quote": "In Valencia, Śrī Rāma Dvādaśī 2038 falls on Sunday 13 June. Dvādaśī runs from 10:17 on Sun 13 Jun to 07:13 on Mon 14 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/pradosha-vrata?on=2038-06-14", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27905, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-06-14T07:13:22-04:00", "utc": "2038-06-14T11:13:22Z", "ms": 2160126802113.1277 }, "end": { "local": "2038-06-15T04:09:06-04:00", "utc": "2038-06-15T08:09:06Z", "ms": 2160202146204.4304 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-14T07:13:22-04:00", "utc": "2038-06-14T11:13:22Z", "ms": 2160126802113.1277 }, "end": { "local": "2038-06-15T04:09:06-04:00", "utc": "2038-06-15T08:09:06Z", "ms": 2160202146204.4304 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-06-13", "window": { "start": { "local": "2038-06-13T18:53:24-04:00", "utc": "2038-06-13T22:53:24Z", "ms": 2160082403723.8428 }, "end": { "local": "2038-06-13T20:23:46-04:00", "utc": "2038-06-14T00:23:46Z", "ms": 2160087826236.9724 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "2038-06-14", "window": { "start": { "local": "2038-06-14T18:53:39-04:00", "utc": "2038-06-14T22:53:39Z", "ms": 2160168818872.3896 }, "end": { "local": "2038-06-14T20:24:01-04:00", "utc": "2038-06-15T00:24:01Z", "ms": 2160174240757.407 } }, "covered_min": 90, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:13 on Mon 14 Jun to 04:09 on Tue 15 Jun.", "fact": "2038-06-14T11:13:22Z → 2038-06-15T08:09:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:24 on the 13th, 18:54–20:24 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 90 minutes on the 13th and 90 of 90 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 27905 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Monday 14 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-14", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Monday 14 June. Trayodaśī runs from 07:13 on Mon 14 Jun to 04:09 on Tue 15 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-06-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7566, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-06-16T01:12:04-04:00", "utc": "2038-06-16T05:12:04Z", "ms": 2160277924090.175 }, "end": { "local": "2038-06-16T22:30:36-04:00", "utc": "2038-06-17T02:30:36Z", "ms": 2160354635713.282 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-16T01:12:04-04:00", "utc": "2038-06-16T05:12:04Z", "ms": 2160277924090.175 }, "end": { "local": "2038-06-16T22:30:36-04:00", "utc": "2038-06-17T02:30:36Z", "ms": 2160354635713.282 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-06-15", "window": { "start": { "local": "2038-06-15T18:53:54-04:00", "utc": "2038-06-15T22:53:54Z", "ms": 2160255233764.873 }, "end": { "local": "2038-06-15T20:24:15-04:00", "utc": "2038-06-16T00:24:15Z", "ms": 2160260655116.7888 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "2038-06-16", "window": { "start": { "local": "2038-06-16T18:54:08-04:00", "utc": "2038-06-16T22:54:08Z", "ms": 2160341648382.0657 }, "end": { "local": "2038-06-16T20:24:29-04:00", "utc": "2038-06-17T00:24:29Z", "ms": 2160347069296.1672 } }, "covered_min": 90, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:12 on Wed 16 Jun to 22:31 on Wed 16 Jun.", "fact": "2038-06-16T05:12:04Z → 2038-06-17T02:30:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:54–20:24 on the 15th, 18:54–20:24 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 90 minutes on the 15th and 90 of 90 on the 16th.", "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 7566 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Valencia, 2038: Wednesday 16 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": "2038-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-16", "confidence": "determinate" } ], "quote": "In Valencia, Vaṭa Sāvitrī Vrata 2038 falls on Wednesday 16 June. Pūrṇimā runs from 01:12 on Wed 16 Jun to 22:31 on Wed 16 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-06-19", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15546, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-06-19T17:17:29-04:00", "utc": "2038-06-19T21:17:29Z", "ms": 2160595049112.0947 }, "end": { "local": "2038-06-20T16:50:33-04:00", "utc": "2038-06-20T20:50:33Z", "ms": 2160679833024.6113 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-19T17:17:29-04:00", "utc": "2038-06-19T21:17:29Z", "ms": 2160595049112.0947 }, "end": { "local": "2038-06-20T16:50:33-04:00", "utc": "2038-06-20T20:50:33Z", "ms": 2160679833024.6113 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-06-19", "window": { "start": { "local": "2038-06-19T21:36:35-04:00", "utc": "2038-06-20T01:36:35Z", "ms": 2160610595270.4946 }, "end": { "local": "2038-06-19T21:36:35-04:00", "utc": "2038-06-20T01:36:35Z", "ms": 2160610595270.4946 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-06-20", "window": { "start": { "local": "2038-06-20T22:26:14-04:00", "utc": "2038-06-21T02:26:14Z", "ms": 2160699973960.471 }, "end": { "local": "2038-06-20T22:26:14-04:00", "utc": "2038-06-21T02:26:14Z", "ms": 2160699973960.471 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:17 on Sat 19 Jun to 16:51 on Sun 20 Jun.", "fact": "2038-06-19T21:17:29Z → 2038-06-20T20:50:33Z" }, { "step": "kaala", "text": "Moonrise is at 21:37 on the 19th and 22:26 on the 20th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 19th and is not on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15546 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Saturday 19 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": "2038-06-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-19", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Saturday 19 June. Caturthī runs from 17:17 on Sat 19 Jun to 16:51 on Sun 20 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-06-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-06-27", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5748, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-06-27T02:24:47-04:00", "utc": "2038-06-27T06:24:47Z", "ms": 2161232686503.5234 }, "end": { "local": "2038-06-28T04:38:25-04:00", "utc": "2038-06-28T08:38:25Z", "ms": 2161327104906.3674 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-27T02:24:47-04:00", "utc": "2038-06-27T06:24:47Z", "ms": 2161232686503.5234 }, "end": { "local": "2038-06-28T04:38:25-04:00", "utc": "2038-06-28T08:38:25Z", "ms": 2161327104906.3674 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-06-27", "window": { "start": { "local": "2038-06-27T06:13:58-04:00", "utc": "2038-06-27T10:13:58Z", "ms": 2161246438451.7695 }, "end": { "local": "2038-06-27T06:13:58-04:00", "utc": "2038-06-27T10:13:58Z", "ms": 2161246438451.7695 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-06-28", "window": { "start": { "local": "2038-06-28T06:14:13-04:00", "utc": "2038-06-28T10:14:13Z", "ms": 2161332853266.072 }, "end": { "local": "2038-06-28T06:14:13-04:00", "utc": "2038-06-28T10:14:13Z", "ms": 2161332853266.072 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:25 on Sun 27 Jun to 04:38 on Mon 28 Jun.", "fact": "2038-06-27T06:24:47Z → 2038-06-28T08:38:25Z" }, { "step": "kaala", "text": "Sunrise is at 06:14 on the 27th and 06:14 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5748 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Valencia, 2038: Sunday 27 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": "2038-06-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-27", "confidence": "determinate" } ], "quote": "In Valencia, Yoginī Ekādaśī 2038 falls on Sunday 27 June. Ekādaśī runs from 02:25 on Sun 27 Jun to 04:38 on Mon 28 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-06-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-06-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36397, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-06-29T06:33:35-04:00", "utc": "2038-06-29T10:33:35Z", "ms": 2161420414831.4539 }, "end": { "local": "2038-06-30T08:03:12-04:00", "utc": "2038-06-30T12:03:12Z", "ms": 2161512192318.6467 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-29T06:33:35-04:00", "utc": "2038-06-29T10:33:35Z", "ms": 2161420414831.4539 }, "end": { "local": "2038-06-30T08:03:12-04:00", "utc": "2038-06-30T12:03:12Z", "ms": 2161512192318.6467 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-06-28", "window": { "start": { "local": "2038-06-28T18:56:35-04:00", "utc": "2038-06-28T22:56:35Z", "ms": 2161378594929.4182 }, "end": { "local": "2038-06-28T20:26:58-04:00", "utc": "2038-06-29T00:26:58Z", "ms": 2161384018039.036 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "2038-06-29", "window": { "start": { "local": "2038-06-29T18:56:44-04:00", "utc": "2038-06-29T22:56:44Z", "ms": 2161465004075.1785 }, "end": { "local": "2038-06-29T20:27:08-04:00", "utc": "2038-06-30T00:27:08Z", "ms": 2161470427982.6414 } }, "covered_min": 90, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:34 on Tue 29 Jun to 08:03 on Wed 30 Jun.", "fact": "2038-06-29T10:33:35Z → 2038-06-30T12:03:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:27 on the 28th, 18:57–20:27 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 90 minutes on the 28th and 90 of 90 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 36397 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Tuesday 29 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-06-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-29", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Tuesday 29 June. Trayodaśī runs from 06:34 on Tue 29 Jun to 08:03 on Wed 30 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-06-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-06-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-06-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25409, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-06-30T08:03:12-04:00", "utc": "2038-06-30T12:03:12Z", "ms": 2161512192318.6467 }, "end": { "local": "2038-07-01T09:03:13-04:00", "utc": "2038-07-01T13:03:13Z", "ms": 2161602193448.8325 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-30T08:03:12-04:00", "utc": "2038-06-30T12:03:12Z", "ms": 2161512192318.6467 }, "end": { "local": "2038-07-01T09:03:13-04:00", "utc": "2038-07-01T13:03:13Z", "ms": 2161602193448.8325 } }, "kaala": "nishita", "days": [ { "local_date": "2038-06-29", "window": { "start": { "local": "2038-06-30T00:11:44-04:00", "utc": "2038-06-30T04:11:44Z", "ms": 2161483903728.1643 }, "end": { "local": "2038-06-30T00:59:44-04:00", "utc": "2038-06-30T04:59:44Z", "ms": 2161486783728.1643 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-06-30", "window": { "start": { "local": "2038-07-01T00:11:56-04:00", "utc": "2038-07-01T04:11:56Z", "ms": 2161570315635.585 }, "end": { "local": "2038-07-01T00:59:56-04:00", "utc": "2038-07-01T04:59:56Z", "ms": 2161573195635.585 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:03 on Wed 30 Jun to 09:03 on Thu 1 Jul.", "fact": "2038-06-30T12:03:12Z → 2038-07-01T13:03:13Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:12–01:00 on the 29th, 00:12–01:00 on the 30th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25409 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Wednesday 30 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": "2038-06-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-30", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Wednesday 30 June. Caturdaśī runs from 08:03 on Wed 30 Jun to 09:03 on Thu 1 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-06-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9696, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2038-07-03T09:30:46-04:00", "utc": "2038-07-03T13:30:46Z", "ms": 2161776645841.234 }, "end": { "local": "2038-07-04T09:00:50-04:00", "utc": "2038-07-04T13:00:50Z", "ms": 2161861250247.8948 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-03T09:30:46-04:00", "utc": "2038-07-03T13:30:46Z", "ms": 2161776645841.234 }, "end": { "local": "2038-07-04T09:00:50-04:00", "utc": "2038-07-04T13:00:50Z", "ms": 2161861250247.8948 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-03", "window": { "start": { "local": "2038-07-03T12:12:22-04:00", "utc": "2038-07-03T16:12:22Z", "ms": 2161786342009.1572 }, "end": { "local": "2038-07-03T13:00:22-04:00", "utc": "2038-07-03T17:00:22Z", "ms": 2161789222009.1572 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-07-04", "window": { "start": { "local": "2038-07-04T12:12:33-04:00", "utc": "2038-07-04T16:12:33Z", "ms": 2161872752740.3594 }, "end": { "local": "2038-07-04T13:00:33-04:00", "utc": "2038-07-04T17:00:33Z", "ms": 2161875632740.3594 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 09:31 on Sat 3 Jul to 09:01 on Sun 4 Jul.", "fact": "2038-07-03T13:30:46Z → 2038-07-04T13:00:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 3rd, 12:13–13:01 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9696 s" }, { "step": "ruling", "text": "Rathayātrā, Valencia, 2038: Saturday 3 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-03", "confidence": "determinate" } ], "quote": "In Valencia, Rathayātrā 2038 falls on Saturday 3 July. Dvitīyā runs from 09:31 on Sat 3 Jul to 09:01 on Sun 4 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-07-05", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14853, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-07-05T08:05:10-04:00", "utc": "2038-07-05T12:05:10Z", "ms": 2161944310449.2988 }, "end": { "local": "2038-07-06T06:46:53-04:00", "utc": "2038-07-06T10:46:53Z", "ms": 2162026012705.9524 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-05T08:05:10-04:00", "utc": "2038-07-05T12:05:10Z", "ms": 2161944310449.2988 }, "end": { "local": "2038-07-06T06:46:53-04:00", "utc": "2038-07-06T10:46:53Z", "ms": 2162026012705.9524 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-05", "window": { "start": { "local": "2038-07-05T12:12:43-04:00", "utc": "2038-07-05T16:12:43Z", "ms": 2161959163129.7031 }, "end": { "local": "2038-07-05T13:00:43-04:00", "utc": "2038-07-05T17:00:43Z", "ms": 2161962043129.7031 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-07-06", "window": { "start": { "local": "2038-07-06T12:12:53-04:00", "utc": "2038-07-06T16:12:53Z", "ms": 2162045573153.4443 }, "end": { "local": "2038-07-06T13:00:53-04:00", "utc": "2038-07-06T17:00:53Z", "ms": 2162048453153.4443 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:05 on Mon 5 Jul to 06:47 on Tue 6 Jul.", "fact": "2038-07-05T12:05:10Z → 2038-07-06T10:46:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 5th, 12:13–13:01 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14853 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Monday 5 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": "2038-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-05", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Monday 5 July. Caturthī runs from 08:05 on Mon 5 Jul to 06:47 on Tue 6 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-07-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19560, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-07-06T06:46:53-04:00", "utc": "2038-07-06T10:46:53Z", "ms": 2162026012705.9524 }, "end": { "local": "2038-07-07T05:09:09-04:00", "utc": "2038-07-07T09:09:09Z", "ms": 2162106549158.0933 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-06T06:46:53-04:00", "utc": "2038-07-06T10:46:53Z", "ms": 2162026012705.9524 }, "end": { "local": "2038-07-07T05:09:09-04:00", "utc": "2038-07-07T09:09:09Z", "ms": 2162106549158.0933 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-06", "window": { "start": { "local": "2038-07-06T12:12:53-04:00", "utc": "2038-07-06T16:12:53Z", "ms": 2162045573153.4443 }, "end": { "local": "2038-07-06T13:00:53-04:00", "utc": "2038-07-06T17:00:53Z", "ms": 2162048453153.4443 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-07-07", "window": { "start": { "local": "2038-07-07T12:13:03-04:00", "utc": "2038-07-07T16:13:03Z", "ms": 2162131982789.0283 }, "end": { "local": "2038-07-07T13:01:03-04:00", "utc": "2038-07-07T17:01:03Z", "ms": 2162134862789.0283 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 06:47 on Tue 6 Jul to 05:09 on Wed 7 Jul.", "fact": "2038-07-06T10:46:53Z → 2038-07-07T09:09:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 6th, 12:13–13:01 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19560 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Valencia, 2038: Tuesday 6 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-06", "confidence": "determinate" } ], "quote": "In Valencia, Skanda Pañcamī 2038 falls on Tuesday 6 July. Pañcamī runs from 06:47 on Tue 6 Jul to 05:09 on Wed 7 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32281, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-07-08T03:15:11-04:00", "utc": "2038-07-08T07:15:11Z", "ms": 2162186110654.8271 }, "end": { "local": "2038-07-09T01:08:07-04:00", "utc": "2038-07-09T05:08:07Z", "ms": 2162264886551.9553 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-08T03:15:11-04:00", "utc": "2038-07-08T07:15:11Z", "ms": 2162186110654.8271 }, "end": { "local": "2038-07-09T01:08:07-04:00", "utc": "2038-07-09T05:08:07Z", "ms": 2162264886551.9553 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-08", "window": { "start": { "local": "2038-07-08T12:13:12-04:00", "utc": "2038-07-08T16:13:12Z", "ms": 2162218392015.3975 }, "end": { "local": "2038-07-08T13:01:12-04:00", "utc": "2038-07-08T17:01:12Z", "ms": 2162221272015.3975 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-07-09", "window": { "start": { "local": "2038-07-09T12:13:21-04:00", "utc": "2038-07-09T16:13:21Z", "ms": 2162304800813.2295 }, "end": { "local": "2038-07-09T13:01:21-04:00", "utc": "2038-07-09T17:01:21Z", "ms": 2162307680813.2295 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:15 on Thu 8 Jul to 01:08 on Fri 9 Jul.", "fact": "2038-07-08T07:15:11Z → 2038-07-09T05:08:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 8th, 12:13–13:01 on the 9th.", "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 8th and 0 of 48 on the 9th.", "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 32281 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Valencia, 2038: Thursday 8 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-08", "confidence": "determinate" } ], "quote": "In Valencia, Vivasvat Saptamī 2038 falls on Thursday 8 July. Saptamī runs from 03:15 on Thu 8 Jul to 01:08 on Fri 9 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-07-12", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33524, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-07-11T18:01:27-04:00", "utc": "2038-07-11T22:01:27Z", "ms": 2162498487069.711 }, "end": { "local": "2038-07-12T15:36:30-04:00", "utc": "2038-07-12T19:36:30Z", "ms": 2162576190382.3804 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-11T18:01:27-04:00", "utc": "2038-07-11T22:01:27Z", "ms": 2162498487069.711 }, "end": { "local": "2038-07-12T15:36:30-04:00", "utc": "2038-07-12T19:36:30Z", "ms": 2162576190382.3804 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-07-11", "window": { "start": { "local": "2038-07-11T06:17:31-04:00", "utc": "2038-07-11T10:17:31Z", "ms": 2162456251420.2876 }, "end": { "local": "2038-07-11T06:17:31-04:00", "utc": "2038-07-11T10:17:31Z", "ms": 2162456251420.2876 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-07-12", "window": { "start": { "local": "2038-07-12T06:17:46-04:00", "utc": "2038-07-12T10:17:46Z", "ms": 2162542666176.016 }, "end": { "local": "2038-07-12T06:17:46-04:00", "utc": "2038-07-12T10:17:46Z", "ms": 2162542666176.016 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:01 on Sun 11 Jul to 15:37 on Mon 12 Jul.", "fact": "2038-07-11T22:01:27Z → 2038-07-12T19:36:30Z" }, { "step": "kaala", "text": "Sunrise is at 06:18 on the 11th and 06:18 on the 12th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 11th and is on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33524 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Valencia, 2038: Monday 12 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": "2038-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-12", "confidence": "determinate" } ], "quote": "In Valencia, Hariśayanī Ekādaśī 2038 falls on Monday 12 July. Ekādaśī runs from 18:01 on Sun 11 Jul to 15:37 on Mon 12 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-07-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-07-13", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20414, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-07-13T13:17:28-04:00", "utc": "2038-07-13T17:17:28Z", "ms": 2162654248116.1536 }, "end": { "local": "2038-07-14T11:09:25-04:00", "utc": "2038-07-14T15:09:25Z", "ms": 2162732964860.6587 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-13T13:17:28-04:00", "utc": "2038-07-13T17:17:28Z", "ms": 2162654248116.1536 }, "end": { "local": "2038-07-14T11:09:25-04:00", "utc": "2038-07-14T15:09:25Z", "ms": 2162732964860.6587 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-07-13", "window": { "start": { "local": "2038-07-13T18:57:42-04:00", "utc": "2038-07-13T22:57:42Z", "ms": 2162674662045.5693 }, "end": { "local": "2038-07-13T20:28:26-04:00", "utc": "2038-07-14T00:28:26Z", "ms": 2162680106457.5198 } }, "covered_min": 91, "window_min": 91, "qualifies": true }, { "local_date": "2038-07-14", "window": { "start": { "local": "2038-07-14T18:57:41-04:00", "utc": "2038-07-14T22:57:41Z", "ms": 2162761060525.712 }, "end": { "local": "2038-07-14T20:28:27-04:00", "utc": "2038-07-15T00:28:27Z", "ms": 2162766507030.073 } }, "covered_min": 0, "window_min": 91, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:17 on Tue 13 Jul to 11:09 on Wed 14 Jul.", "fact": "2038-07-13T17:17:28Z → 2038-07-14T15:09:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:58–20:28 on the 13th, 18:58–20:28 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 91 of 91 minutes on the 13th and 0 of 91 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 20414 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Tuesday 13 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-13", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Tuesday 13 July. Trayodaśī runs from 13:17 on Tue 13 Jul to 11:09 on Wed 14 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-07-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-15", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1649, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-07-15T09:17:49-04:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T07:48:18-04:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-15T09:17:49-04:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T07:48:18-04:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 } }, "kaala": "udaya-3", "days": [ { "local_date": "2038-07-15", "window": { "start": { "local": "2038-07-15T06:18:29-04:00", "utc": "2038-07-15T10:18:29Z", "ms": 2162801909308.4197 }, "end": { "local": "2038-07-15T08:50:19-04:00", "utc": "2038-07-15T12:50:19Z", "ms": 2162811019087.2302 } }, "covered_min": 0, "window_min": 152, "qualifies": false }, { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T06:18:43-04:00", "utc": "2038-07-16T10:18:43Z", "ms": 2162888323259.1714 }, "end": { "local": "2038-07-16T08:50:30-04:00", "utc": "2038-07-16T12:50:30Z", "ms": 2162897429621.9727 } }, "covered_min": 90, "window_min": 152, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:18 on Thu 15 Jul to 07:48 on Fri 16 Jul.", "fact": "2038-07-15T13:17:49Z → 2038-07-16T11:48:18Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:18–08:50 on the 15th, 06:19–08:50 on the 16th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 0 of 152 minutes on the 15th and 90 of 152 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither morning qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1649 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Valencia, 2038: Thursday 15 July.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "vyasa-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "udaya-3", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-15", "confidence": "boundary" } ], "quote": "In Valencia, Vyāsa Pūjā 2038 falls on Thursday 15 July. Pūrṇimā runs from 09:18 on Thu 15 Jul to 07:48 on Fri 16 Jul, and reaches the first three muhūrtas after sunrise on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10575, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-07-15T09:17:49-04:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T07:48:18-04:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-15T09:17:49-04:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T07:48:18-04:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-15", "window": { "start": { "local": "2038-07-15T12:14:04-04:00", "utc": "2038-07-15T16:14:04Z", "ms": 2162823243755.4463 }, "end": { "local": "2038-07-15T13:02:04-04:00", "utc": "2038-07-15T17:02:04Z", "ms": 2162826123755.4463 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T12:14:09-04:00", "utc": "2038-07-16T16:14:09Z", "ms": 2162909649166.1746 }, "end": { "local": "2038-07-16T13:02:09-04:00", "utc": "2038-07-16T17:02:09Z", "ms": 2162912529166.1746 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:18 on Thu 15 Jul to 07:48 on Fri 16 Jul.", "fact": "2038-07-15T13:17:49Z → 2038-07-16T11:48:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 15th, 12:14–13:02 on the 16th.", "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 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10575 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Valencia, 2038: Thursday 15 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": "2038-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-15", "confidence": "determinate" } ], "quote": "In Valencia, Guru Pūrṇimā 2038 falls on Thursday 15 July. Pūrṇimā runs from 09:18 on Thu 15 Jul to 07:48 on Fri 16 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25680, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-07-15T09:17:49-04:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T07:48:18-04:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-15T09:17:49-04:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T07:48:18-04:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 } }, "kaala": "sayahna", "days": [ { "local_date": "2038-07-15", "window": { "start": { "local": "2038-07-15T16:25:48-04:00", "utc": "2038-07-15T20:25:48Z", "ms": 2162838348423.6624 }, "end": { "local": "2038-07-15T18:57:38-04:00", "utc": "2038-07-15T22:57:38Z", "ms": 2162847458202.473 } }, "covered_min": 152, "window_min": 152, "qualifies": true }, { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T16:25:49-04:00", "utc": "2038-07-16T20:25:49Z", "ms": 2162924748710.3765 }, "end": { "local": "2038-07-16T18:57:35-04:00", "utc": "2038-07-16T22:57:35Z", "ms": 2162933855073.1777 } }, "covered_min": 0, "window_min": 152, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:18 on Thu 15 Jul to 07:48 on Fri 16 Jul.", "fact": "2038-07-15T13:17:49Z → 2038-07-16T11:48:18Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:26–18:58 on the 15th, 16:26–18:58 on the 16th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 152 of 152 minutes on the 15th and 0 of 152 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25680 s" }, { "step": "ruling", "text": "Kokilā Vrata, Valencia, 2038: Thursday 15 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kokila-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-15", "confidence": "determinate" } ], "quote": "In Valencia, Kokilā Vrata 2038 falls on Thursday 15 July. Pūrṇimā runs from 09:18 on Thu 15 Jul to 07:48 on Fri 16 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34790, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-07-15T09:17:49-04:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T07:48:18-04:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-15T09:17:49-04:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T07:48:18-04:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-07-15", "window": { "start": { "local": "2038-07-15T18:57:38-04:00", "utc": "2038-07-15T22:57:38Z", "ms": 2162847458202.473 }, "end": { "local": "2038-07-15T20:28:27-04:00", "utc": "2038-07-16T00:28:27Z", "ms": 2162852906876.6995 } }, "covered_min": 91, "window_min": 91, "qualifies": true }, { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T18:57:35-04:00", "utc": "2038-07-16T22:57:35Z", "ms": 2162933855073.1777 }, "end": { "local": "2038-07-16T20:28:26-04:00", "utc": "2038-07-17T00:28:26Z", "ms": 2162939305993.397 } }, "covered_min": 0, "window_min": 91, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:18 on Thu 15 Jul to 07:48 on Fri 16 Jul.", "fact": "2038-07-15T13:17:49Z → 2038-07-16T11:48:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:58–20:28 on the 15th, 18:58–20:28 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 91 of 91 minutes on the 15th and 0 of 91 on the 16th.", "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 34790 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Valencia, 2038: Thursday 15 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": "2038-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-15", "confidence": "determinate" } ], "quote": "In Valencia, Śiva Śayanotsava 2038 falls on Thursday 15 July. Pūrṇimā runs from 09:18 on Thu 15 Jul to 07:48 on Fri 16 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36066, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2038-07-17T06:46:25-04:00", "utc": "2038-07-17T10:46:25Z", "ms": 2162976384801.7295 }, "end": { "local": "2038-07-18T06:16:59-04:00", "utc": "2038-07-18T10:16:59Z", "ms": 2163061019068.0774 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-17T06:46:25-04:00", "utc": "2038-07-17T10:46:25Z", "ms": 2162976384801.7295 }, "end": { "local": "2038-07-18T06:16:59-04:00", "utc": "2038-07-18T10:16:59Z", "ms": 2163061019068.0774 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T19:23:49-04:00", "utc": "2038-07-16T23:23:49Z", "ms": 2162935429173.7166 }, "end": { "local": "2038-07-16T19:23:49-04:00", "utc": "2038-07-16T23:23:49Z", "ms": 2162935429173.7166 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-07-17", "window": { "start": { "local": "2038-07-17T20:15:53-04:00", "utc": "2038-07-18T00:15:53Z", "ms": 2163024953025.9338 }, "end": { "local": "2038-07-17T20:15:53-04:00", "utc": "2038-07-18T00:15:53Z", "ms": 2163024953025.9338 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 06:46 on Sat 17 Jul to 06:17 on Sun 18 Jul.", "fact": "2038-07-17T10:46:25Z → 2038-07-18T10:16:59Z" }, { "step": "kaala", "text": "Moonrise is at 19:24 on the 16th and 20:16 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 16th and is on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36066 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Valencia, 2038: Saturday 17 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": "2038-07-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-17", "confidence": "determinate" } ], "quote": "In Valencia, Aśūnya Śayana Vrata (Āṣāḍha) 2038 falls on Saturday 17 July. Dvitīyā runs from 06:46 on Sat 17 Jul to 06:17 on Sun 18 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-07-19", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33598, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-07-19T06:23:33-04:00", "utc": "2038-07-19T10:23:33Z", "ms": 2163147812906.039 }, "end": { "local": "2038-07-20T07:07:29-04:00", "utc": "2038-07-20T11:07:29Z", "ms": 2163236849379.0896 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-19T06:23:33-04:00", "utc": "2038-07-19T10:23:33Z", "ms": 2163147812906.039 }, "end": { "local": "2038-07-20T07:07:29-04:00", "utc": "2038-07-20T11:07:29Z", "ms": 2163236849379.0896 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-07-18", "window": { "start": { "local": "2038-07-18T21:03:34-04:00", "utc": "2038-07-19T01:03:34Z", "ms": 2163114214455.6682 }, "end": { "local": "2038-07-18T21:03:34-04:00", "utc": "2038-07-19T01:03:34Z", "ms": 2163114214455.6682 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-07-19", "window": { "start": { "local": "2038-07-19T21:47:21-04:00", "utc": "2038-07-20T01:47:21Z", "ms": 2163203240782.047 }, "end": { "local": "2038-07-19T21:47:21-04:00", "utc": "2038-07-20T01:47:21Z", "ms": 2163203240782.047 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:24 on Mon 19 Jul to 07:07 on Tue 20 Jul.", "fact": "2038-07-19T10:23:33Z → 2038-07-20T11:07:29Z" }, { "step": "kaala", "text": "Moonrise is at 21:04 on the 18th and 21:47 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 18th and is on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33598 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Monday 19 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-19", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Monday 19 July. Caturthī runs from 06:24 on Mon 19 Jul to 07:07 on Tue 20 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-07-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-07-27", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34695, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-07-26T19:10:00-04:00", "utc": "2038-07-26T23:10:00Z", "ms": 2163798599994.155 }, "end": { "local": "2038-07-27T20:42:54-04:00", "utc": "2038-07-28T00:42:54Z", "ms": 2163890573698.6965 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-26T19:10:00-04:00", "utc": "2038-07-26T23:10:00Z", "ms": 2163798599994.155 }, "end": { "local": "2038-07-27T20:42:54-04:00", "utc": "2038-07-28T00:42:54Z", "ms": 2163890573698.6965 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-07-27", "window": { "start": { "local": "2038-07-27T06:20:59-04:00", "utc": "2038-07-27T10:20:59Z", "ms": 2163838858602.4514 }, "end": { "local": "2038-07-27T06:20:59-04:00", "utc": "2038-07-27T10:20:59Z", "ms": 2163838858602.4514 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-07-28", "window": { "start": { "local": "2038-07-28T06:21:09-04:00", "utc": "2038-07-28T10:21:09Z", "ms": 2163925268960.7002 }, "end": { "local": "2038-07-28T06:21:09-04:00", "utc": "2038-07-28T10:21:09Z", "ms": 2163925268960.7002 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:10 on Mon 26 Jul to 20:43 on Tue 27 Jul.", "fact": "2038-07-26T23:10:00Z → 2038-07-28T00:42:54Z" }, { "step": "kaala", "text": "Sunrise is at 06:21 on the 27th and 06:21 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34695 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Valencia, 2038: Tuesday 27 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-27", "confidence": "determinate" } ], "quote": "In Valencia, Kāmikā Ekādaśī 2038 falls on Tuesday 27 July. Ekādaśī runs from 19:10 on Mon 26 Jul to 20:43 on Tue 27 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-07-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-07-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4378, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-07-28T21:40:16-04:00", "utc": "2038-07-29T01:40:16Z", "ms": 2163980415501.7178 }, "end": { "local": "2038-07-29T21:58:28-04:00", "utc": "2038-07-30T01:58:28Z", "ms": 2164067907707.2173 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-28T21:40:16-04:00", "utc": "2038-07-29T01:40:16Z", "ms": 2163980415501.7178 }, "end": { "local": "2038-07-29T21:58:28-04:00", "utc": "2038-07-30T01:58:28Z", "ms": 2164067907707.2173 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-07-28", "window": { "start": { "local": "2038-07-28T18:55:54-04:00", "utc": "2038-07-28T22:55:54Z", "ms": 2163970554186.2788 }, "end": { "local": "2038-07-28T20:27:17-04:00", "utc": "2038-07-29T00:27:17Z", "ms": 2163976037487.695 } }, "covered_min": 0, "window_min": 91, "qualifies": false }, { "local_date": "2038-07-29", "window": { "start": { "local": "2038-07-29T18:55:40-04:00", "utc": "2038-07-29T22:55:40Z", "ms": 2164056940491.2778 }, "end": { "local": "2038-07-29T20:27:07-04:00", "utc": "2038-07-30T00:27:07Z", "ms": 2164062426899.161 } }, "covered_min": 91, "window_min": 91, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:40 on Wed 28 Jul to 21:58 on Thu 29 Jul.", "fact": "2038-07-29T01:40:16Z → 2038-07-30T01:58:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:27 on the 28th, 18:56–20:27 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 91 minutes on the 28th and 91 of 91 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 4378 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Thursday 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": "2038-07-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-29", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Thursday 29 July. Trayodaśī runs from 21:40 on Wed 28 Jul to 21:58 on Thu 29 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-07-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-07-29", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-07-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8167, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-07-29T21:58:28-04:00", "utc": "2038-07-30T01:58:28Z", "ms": 2164067907707.2173 }, "end": { "local": "2038-07-30T21:37:31-04:00", "utc": "2038-07-31T01:37:31Z", "ms": 2164153051182.732 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-29T21:58:28-04:00", "utc": "2038-07-30T01:58:28Z", "ms": 2164067907707.2173 }, "end": { "local": "2038-07-30T21:37:31-04:00", "utc": "2038-07-31T01:37:31Z", "ms": 2164153051182.732 } }, "kaala": "nishita", "days": [ { "local_date": "2038-07-29", "window": { "start": { "local": "2038-07-30T00:14:35-04:00", "utc": "2038-07-30T04:14:35Z", "ms": 2164076074520.8396 }, "end": { "local": "2038-07-30T01:02:35-04:00", "utc": "2038-07-30T05:02:35Z", "ms": 2164078954520.8396 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-07-30", "window": { "start": { "local": "2038-07-31T00:14:32-04:00", "utc": "2038-07-31T04:14:32Z", "ms": 2164162471872.914 }, "end": { "local": "2038-07-31T01:02:32-04:00", "utc": "2038-07-31T05:02:32Z", "ms": 2164165351872.914 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:58 on Thu 29 Jul to 21:38 on Fri 30 Jul.", "fact": "2038-07-30T01:58:28Z → 2038-07-31T01:37:31Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:15–01:03 on the 29th, 00:15–01:03 on the 30th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 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. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8167 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Thursday 29 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": "2038-07-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-29", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Thursday 29 July. Caturdaśī runs from 21:58 on Thu 29 Jul to 21:38 on Fri 30 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-07-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7532, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-08-02T17:18:56-04:00", "utc": "2038-08-02T21:18:56Z", "ms": 2164396736298.357 }, "end": { "local": "2038-08-03T15:07:43-04:00", "utc": "2038-08-03T19:07:43Z", "ms": 2164475263444.7092 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-02T17:18:56-04:00", "utc": "2038-08-02T21:18:56Z", "ms": 2164396736298.357 }, "end": { "local": "2038-08-03T15:07:43-04:00", "utc": "2038-08-03T19:07:43Z", "ms": 2164475263444.7092 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-02", "window": { "start": { "local": "2038-08-02T12:14:16-04:00", "utc": "2038-08-02T16:14:16Z", "ms": 2164378456286.0042 }, "end": { "local": "2038-08-02T13:02:16-04:00", "utc": "2038-08-02T17:02:16Z", "ms": 2164381336286.0042 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-03", "window": { "start": { "local": "2038-08-03T12:14:11-04:00", "utc": "2038-08-03T16:14:11Z", "ms": 2164464851402.4463 }, "end": { "local": "2038-08-03T13:02:11-04:00", "utc": "2038-08-03T17:02:11Z", "ms": 2164467731402.4463 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 17:19 on Mon 2 Aug to 15:08 on Tue 3 Aug.", "fact": "2038-08-02T21:18:56Z → 2038-08-03T19:07:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 2nd, 12:14–13:02 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 0 of 48 minutes on the 2nd and 48 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7532 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Valencia, 2038: Tuesday 3 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": "2038-08-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-03", "confidence": "determinate" } ], "quote": "In Valencia, Madhusravā Tṛtīyā (Hariyali Teej) 2038 falls on Tuesday 3 August. Tṛtīyā runs from 17:19 on Mon 2 Aug to 15:08 on Tue 3 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1011, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-08-04T12:45:15-04:00", "utc": "2038-08-04T16:45:15Z", "ms": 2164553114526.0002 }, "end": { "local": "2038-08-05T10:17:49-04:00", "utc": "2038-08-05T14:17:49Z", "ms": 2164630668546.6096 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-04T12:45:15-04:00", "utc": "2038-08-04T16:45:15Z", "ms": 2164553114526.0002 }, "end": { "local": "2038-08-05T10:17:49-04:00", "utc": "2038-08-05T14:17:49Z", "ms": 2164630668546.6096 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-04", "window": { "start": { "local": "2038-08-04T12:14:06-04:00", "utc": "2038-08-04T16:14:06Z", "ms": 2164551245902.6846 }, "end": { "local": "2038-08-04T13:02:06-04:00", "utc": "2038-08-04T17:02:06Z", "ms": 2164554125902.6846 } }, "covered_min": 17, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-05", "window": { "start": { "local": "2038-08-05T12:14:00-04:00", "utc": "2038-08-05T16:14:00Z", "ms": 2164637639785.8972 }, "end": { "local": "2038-08-05T13:02:00-04:00", "utc": "2038-08-05T17:02:00Z", "ms": 2164640519785.8972 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:45 on Wed 4 Aug to 10:18 on Thu 5 Aug.", "fact": "2038-08-04T16:45:15Z → 2038-08-05T14:17:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 4th, 12:14–13:02 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 17 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1011 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Valencia, 2038: Wednesday 4 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": "2038-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-04", "confidence": "determinate" } ], "quote": "In Valencia, Nāga Pañcamī 2038 falls on Wednesday 4 August. Pañcamī runs from 12:45 on Wed 4 Aug to 10:18 on Thu 5 Aug and covers 17 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-08-04", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1011, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-08-03T15:07:43-04:00", "utc": "2038-08-03T19:07:43Z", "ms": 2164475263444.7092 }, "end": { "local": "2038-08-04T12:45:15-04:00", "utc": "2038-08-04T16:45:15Z", "ms": 2164553114526.0002 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-03T15:07:43-04:00", "utc": "2038-08-03T19:07:43Z", "ms": 2164475263444.7092 }, "end": { "local": "2038-08-04T12:45:15-04:00", "utc": "2038-08-04T16:45:15Z", "ms": 2164553114526.0002 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-03", "window": { "start": { "local": "2038-08-03T12:14:11-04:00", "utc": "2038-08-03T16:14:11Z", "ms": 2164464851402.4463 }, "end": { "local": "2038-08-03T13:02:11-04:00", "utc": "2038-08-03T17:02:11Z", "ms": 2164467731402.4463 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-04", "window": { "start": { "local": "2038-08-04T12:14:06-04:00", "utc": "2038-08-04T16:14:06Z", "ms": 2164551245902.6846 }, "end": { "local": "2038-08-04T13:02:06-04:00", "utc": "2038-08-04T17:02:06Z", "ms": 2164554125902.6846 } }, "covered_min": 31, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:08 on Tue 3 Aug to 12:45 on Wed 4 Aug.", "fact": "2038-08-03T19:07:43Z → 2038-08-04T16:45:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 3rd, 12:14–13:02 on the 4th.", "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 3rd and 31 of 48 on the 4th.", "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 1011 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Wednesday 4 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": "2038-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-04", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Wednesday 4 August. Caturthī runs from 15:08 on Tue 3 Aug to 12:45 on Wed 4 Aug and covers 31 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-08-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-08-10", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24949, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-08-09T23:26:57-04:00", "utc": "2038-08-10T03:26:57Z", "ms": 2165023617118.444 }, "end": { "local": "2038-08-10T21:54:14-04:00", "utc": "2038-08-11T01:54:14Z", "ms": 2165104454053.407 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-09T23:26:57-04:00", "utc": "2038-08-10T03:26:57Z", "ms": 2165023617118.444 }, "end": { "local": "2038-08-10T21:54:14-04:00", "utc": "2038-08-11T01:54:14Z", "ms": 2165104454053.407 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-08-10", "window": { "start": { "local": "2038-08-10T06:22:46-04:00", "utc": "2038-08-10T10:22:46Z", "ms": 2165048566386.9336 }, "end": { "local": "2038-08-10T06:22:46-04:00", "utc": "2038-08-10T10:22:46Z", "ms": 2165048566386.9336 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-08-11", "window": { "start": { "local": "2038-08-11T06:22:51-04:00", "utc": "2038-08-11T10:22:51Z", "ms": 2165134970818.4255 }, "end": { "local": "2038-08-11T06:22:51-04:00", "utc": "2038-08-11T10:22:51Z", "ms": 2165134970818.4255 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:27 on Mon 9 Aug to 21:54 on Tue 10 Aug.", "fact": "2038-08-10T03:26:57Z → 2038-08-11T01:54:14Z" }, { "step": "kaala", "text": "Sunrise is at 06:23 on the 10th and 06:23 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 24949 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Valencia, 2038: Tuesday 10 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-10", "confidence": "determinate" } ], "quote": "In Valencia, Putradā Ekādaśī 2038 falls on Tuesday 10 August. Ekādaśī runs from 23:27 on Mon 9 Aug to 21:54 on Tue 10 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-08-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27442, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-08-10T21:54:14-04:00", "utc": "2038-08-11T01:54:14Z", "ms": 2165104454053.407 }, "end": { "local": "2038-08-11T20:38:33-04:00", "utc": "2038-08-12T00:38:33Z", "ms": 2165186312527.9587 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-10T21:54:14-04:00", "utc": "2038-08-11T01:54:14Z", "ms": 2165104454053.407 }, "end": { "local": "2038-08-11T20:38:33-04:00", "utc": "2038-08-12T00:38:33Z", "ms": 2165186312527.9587 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-10", "window": { "start": { "local": "2038-08-10T12:13:20-04:00", "utc": "2038-08-10T16:13:20Z", "ms": 2165069600044.1426 }, "end": { "local": "2038-08-10T13:01:20-04:00", "utc": "2038-08-10T17:01:20Z", "ms": 2165072480044.1426 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-11", "window": { "start": { "local": "2038-08-11T12:13:10-04:00", "utc": "2038-08-11T16:13:10Z", "ms": 2165155990308.8696 }, "end": { "local": "2038-08-11T13:01:10-04:00", "utc": "2038-08-11T17:01:10Z", "ms": 2165158870308.8696 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 21:54 on Tue 10 Aug to 20:39 on Wed 11 Aug.", "fact": "2038-08-11T01:54:14Z → 2038-08-12T00:38:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 10th, 12:13–13:01 on the 11th.", "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 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27442 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Valencia, 2038: Wednesday 11 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": "2038-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-11", "confidence": "determinate" } ], "quote": "In Valencia, Dāmodara Dvādaśī 2038 falls on Wednesday 11 August. Dvādaśī runs from 21:54 on Tue 10 Aug to 20:39 on Wed 11 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/pradosha-vrata?on=2038-08-12", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 891, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-08-11T20:38:33-04:00", "utc": "2038-08-12T00:38:33Z", "ms": 2165186312527.9587 }, "end": { "local": "2038-08-12T19:41:59-04:00", "utc": "2038-08-12T23:41:59Z", "ms": 2165269319182.497 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-11T20:38:33-04:00", "utc": "2038-08-12T00:38:33Z", "ms": 2165186312527.9587 }, "end": { "local": "2038-08-12T19:41:59-04:00", "utc": "2038-08-12T23:41:59Z", "ms": 2165269319182.497 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-08-11", "window": { "start": { "local": "2038-08-11T18:51:30-04:00", "utc": "2038-08-11T22:51:30Z", "ms": 2165179889799.3135 }, "end": { "local": "2038-08-11T20:23:41-04:00", "utc": "2038-08-12T00:23:41Z", "ms": 2165185421134.7683 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "2038-08-12", "window": { "start": { "local": "2038-08-12T18:51:05-04:00", "utc": "2038-08-12T22:51:05Z", "ms": 2165266265185.0505 }, "end": { "local": "2038-08-12T20:23:20-04:00", "utc": "2038-08-13T00:23:20Z", "ms": 2165271800278.2742 } }, "covered_min": 51, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:39 on Wed 11 Aug to 19:42 on Thu 12 Aug.", "fact": "2038-08-12T00:38:33Z → 2038-08-12T23:41:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:24 on the 11th, 18:51–20:23 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 51 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 891 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Thursday 12 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": "2038-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-12", "confidence": "boundary" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Thursday 12 August. Trayodaśī runs from 20:39 on Wed 11 Aug to 19:42 on Thu 12 Aug and covers 51 of 92 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-08-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2143, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-08-13T19:07:08-04:00", "utc": "2038-08-13T23:07:08Z", "ms": 2165353627679.6553 }, "end": { "local": "2038-08-14T18:56:52-04:00", "utc": "2038-08-14T22:56:52Z", "ms": 2165439412421.196 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2038-08-14T06:58:44-04:00", "utc": "2038-08-14T10:58:44Z", "ms": 2165396324305.8105 }, "end": { "local": "2038-08-14T18:56:52-04:00", "utc": "2038-08-14T22:56:52Z", "ms": 2165439412421.196 } }, "kaala": "day", "days": [ { "local_date": "2038-08-13", "window": { "start": { "local": "2038-08-13T06:22:58-04:00", "utc": "2038-08-13T10:22:58Z", "ms": 2165307778384.2273 }, "end": { "local": "2038-08-14T06:23:02-04:00", "utc": "2038-08-14T10:23:02Z", "ms": 2165394181533.359 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "2038-08-14", "window": { "start": { "local": "2038-08-14T06:23:02-04:00", "utc": "2038-08-14T10:23:02Z", "ms": 2165394181533.359 }, "end": { "local": "2038-08-15T06:23:04-04:00", "utc": "2038-08-15T10:23:04Z", "ms": 2165480584271.322 } }, "covered_min": 718, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:07 on Fri 13 Aug to 18:57 on Sat 14 Aug. Its second half begins at 06:59 on Sat 14 Aug.", "fact": "2038-08-13T23:07:08Z → 2038-08-14T22:56:52Z · second half from 2038-08-14T10:58:44Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:23 on the 13th, and from 06:23 on the 14th.", "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 1440 minutes on the 13th and 718 of 1440 on the 14th.", "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 2143 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Valencia, 2038: Saturday 14 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": "2038-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-14", "confidence": "determinate" } ], "quote": "In Valencia, Rakṣā Bandhana (Rakhi) 2038 falls on Saturday 14 August. The second half of Pūrṇimā runs from 06:59 on Sat 14 Aug to 18:57 on Sat 14 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21375, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-08-13T19:07:08-04:00", "utc": "2038-08-13T23:07:08Z", "ms": 2165353627679.6553 }, "end": { "local": "2038-08-14T18:56:52-04:00", "utc": "2038-08-14T22:56:52Z", "ms": 2165439412421.196 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-13T19:07:08-04:00", "utc": "2038-08-13T23:07:08Z", "ms": 2165353627679.6553 }, "end": { "local": "2038-08-14T18:56:52-04:00", "utc": "2038-08-14T22:56:52Z", "ms": 2165439412421.196 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-13", "window": { "start": { "local": "2038-08-13T12:12:49-04:00", "utc": "2038-08-13T16:12:49Z", "ms": 2165328769129.87 }, "end": { "local": "2038-08-13T13:00:49-04:00", "utc": "2038-08-13T17:00:49Z", "ms": 2165331649129.87 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-14", "window": { "start": { "local": "2038-08-14T12:12:38-04:00", "utc": "2038-08-14T16:12:38Z", "ms": 2165415157710.7832 }, "end": { "local": "2038-08-14T13:00:38-04:00", "utc": "2038-08-14T17:00:38Z", "ms": 2165418037710.7832 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:07 on Fri 13 Aug to 18:57 on Sat 14 Aug.", "fact": "2038-08-13T23:07:08Z → 2038-08-14T22:56:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 13th, 12:13–13:01 on the 14th.", "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 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21375 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Valencia, 2038: Saturday 14 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": "2038-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-14", "confidence": "determinate" } ], "quote": "In Valencia, Ṛṣi Tarpaṇa 2038 falls on Saturday 14 August. Pūrṇimā runs from 19:07 on Fri 13 Aug to 18:57 on Sat 14 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1329, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2038-08-15T19:14:06-04:00", "utc": "2038-08-15T23:14:06Z", "ms": 2165526846225.2295 }, "end": { "local": "2038-08-16T20:01:02-04:00", "utc": "2038-08-17T00:01:02Z", "ms": 2165616061688.3225 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-15T19:14:06-04:00", "utc": "2038-08-15T23:14:06Z", "ms": 2165526846225.2295 }, "end": { "local": "2038-08-16T20:01:02-04:00", "utc": "2038-08-17T00:01:02Z", "ms": 2165616061688.3225 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-08-15", "window": { "start": { "local": "2038-08-15T19:41:12-04:00", "utc": "2038-08-15T23:41:12Z", "ms": 2165528471884.792 }, "end": { "local": "2038-08-15T19:41:12-04:00", "utc": "2038-08-15T23:41:12Z", "ms": 2165528471884.792 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-08-16", "window": { "start": { "local": "2038-08-16T20:23:10-04:00", "utc": "2038-08-17T00:23:10Z", "ms": 2165617390200.164 }, "end": { "local": "2038-08-16T20:23:10-04:00", "utc": "2038-08-17T00:23:10Z", "ms": 2165617390200.164 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 19:14 on Sun 15 Aug to 20:01 on Mon 16 Aug.", "fact": "2038-08-15T23:14:06Z → 2038-08-17T00:01:02Z" }, { "step": "kaala", "text": "Moonrise is at 19:41 on the 15th and 20:23 on the 16th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 15th and is not on the 16th.", "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 1329 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Valencia, 2038: Sunday 15 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ashunya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 2 Asunyasayana vrata (Dvitiya current at moonrise; if occurs on two successive days, it is to be observed on the second day)." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-15", "confidence": "determinate" } ], "quote": "In Valencia, Aśūnya Śayana Vrata 2038 falls on Sunday 15 August. Dvitīyā runs from 19:14 on Sun 15 Aug to 20:01 on Mon 16 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25248, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-08-16T20:01:02-04:00", "utc": "2038-08-17T00:01:02Z", "ms": 2165616061688.3225 }, "end": { "local": "2038-08-17T21:18:19-04:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-16T20:01:02-04:00", "utc": "2038-08-17T00:01:02Z", "ms": 2165616061688.3225 }, "end": { "local": "2038-08-17T21:18:19-04:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-16", "window": { "start": { "local": "2038-08-16T12:12:13-04:00", "utc": "2038-08-16T16:12:13Z", "ms": 2165587933279.6377 }, "end": { "local": "2038-08-16T13:00:13-04:00", "utc": "2038-08-16T17:00:13Z", "ms": 2165590813279.6377 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-17", "window": { "start": { "local": "2038-08-17T12:12:00-04:00", "utc": "2038-08-17T16:12:00Z", "ms": 2165674320295.0574 }, "end": { "local": "2038-08-17T13:00:00-04:00", "utc": "2038-08-17T17:00:00Z", "ms": 2165677200295.0574 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 20:01 on Mon 16 Aug to 21:18 on Tue 17 Aug.", "fact": "2038-08-17T00:01:02Z → 2038-08-18T01:18:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 16th, 12:12–13:00 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25248 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Valencia, 2038: Tuesday 17 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kajjali-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 3 Kajjali trtiya, (paraviddha), Angaveta trtiya (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-17", "confidence": "determinate" } ], "quote": "In Valencia, Kajjalī Tṛtīyā (Kajari Teej) 2038 falls on Tuesday 17 August. Tṛtīyā runs from 20:01 on Mon 16 Aug to 21:18 on Tue 17 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8967, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-08-17T21:18:19-04:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "end": { "local": "2038-08-18T23:04:07-04:00", "utc": "2038-08-19T03:04:07Z", "ms": 2165799847467.6523 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-17T21:18:19-04:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "end": { "local": "2038-08-18T23:04:07-04:00", "utc": "2038-08-19T03:04:07Z", "ms": 2165799847467.6523 } }, "kaala": "sayahna", "days": [ { "local_date": "2038-08-17", "window": { "start": { "local": "2038-08-17T16:19:43-04:00", "utc": "2038-08-17T20:19:43Z", "ms": 2165689183341.4841 }, "end": { "local": "2038-08-17T18:48:52-04:00", "utc": "2038-08-17T22:48:52Z", "ms": 2165698132039.102 } }, "covered_min": 0, "window_min": 149, "qualifies": false }, { "local_date": "2038-08-18", "window": { "start": { "local": "2038-08-18T16:19:21-04:00", "utc": "2038-08-18T20:19:21Z", "ms": 2165775560839.3127 }, "end": { "local": "2038-08-18T18:48:24-04:00", "utc": "2038-08-18T22:48:24Z", "ms": 2165784503521.132 } }, "covered_min": 149, "window_min": 149, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:18 on Tue 17 Aug to 23:04 on Wed 18 Aug.", "fact": "2038-08-18T01:18:19Z → 2038-08-19T03:04:07Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:20–18:49 on the 17th, 16:19–18:48 on the 18th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 0 of 149 minutes on the 17th and 149 of 149 on the 18th.", "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 8967 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Valencia, 2038: Wednesday 18 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bahula-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)." } ], "kaala": "sayahna", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-18", "confidence": "determinate" } ], "quote": "In Valencia, Bahulā Caturthī 2038 falls on Wednesday 18 August. Caturthī runs from 21:18 on Tue 17 Aug to 23:04 on Wed 18 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-08-18", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 932, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-08-17T21:18:19-04:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "end": { "local": "2038-08-18T23:04:07-04:00", "utc": "2038-08-19T03:04:07Z", "ms": 2165799847467.6523 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-17T21:18:19-04:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "end": { "local": "2038-08-18T23:04:07-04:00", "utc": "2038-08-19T03:04:07Z", "ms": 2165799847467.6523 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-08-17", "window": { "start": { "local": "2038-08-17T21:02:47-04:00", "utc": "2038-08-18T01:02:47Z", "ms": 2165706166620.537 }, "end": { "local": "2038-08-17T21:02:47-04:00", "utc": "2038-08-18T01:02:47Z", "ms": 2165706166620.537 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-08-18", "window": { "start": { "local": "2038-08-18T21:40:58-04:00", "utc": "2038-08-19T01:40:58Z", "ms": 2165794858013.3984 }, "end": { "local": "2038-08-18T21:40:58-04:00", "utc": "2038-08-19T01:40:58Z", "ms": 2165794858013.3984 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:18 on Tue 17 Aug to 23:04 on Wed 18 Aug.", "fact": "2038-08-18T01:18:19Z → 2038-08-19T03:04:07Z" }, { "step": "kaala", "text": "Moonrise is at 21:03 on the 17th and 21:41 on the 18th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 17th and is on the 18th.", "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 932 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Wednesday 18 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": "2038-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-18", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Wednesday 18 August. Caturthī runs from 21:18 on Tue 17 Aug to 23:04 on Wed 18 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-08-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30853, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-08-20T01:13:16-04:00", "utc": "2038-08-20T05:13:16Z", "ms": 2165893995849.4126 }, "end": { "local": "2038-08-21T03:36:50-04:00", "utc": "2038-08-21T07:36:50Z", "ms": 2165989010481.4648 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-20T01:13:16-04:00", "utc": "2038-08-20T05:13:16Z", "ms": 2165893995849.4126 }, "end": { "local": "2038-08-21T03:36:50-04:00", "utc": "2038-08-21T07:36:50Z", "ms": 2165989010481.4648 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-20", "window": { "start": { "local": "2038-08-20T12:11:18-04:00", "utc": "2038-08-20T16:11:18Z", "ms": 2165933478432.128 }, "end": { "local": "2038-08-20T12:59:18-04:00", "utc": "2038-08-20T16:59:18Z", "ms": 2165936358432.128 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-21", "window": { "start": { "local": "2038-08-21T12:11:04-04:00", "utc": "2038-08-21T16:11:04Z", "ms": 2166019863554.4224 }, "end": { "local": "2038-08-21T12:59:04-04:00", "utc": "2038-08-21T16:59:04Z", "ms": 2166022743554.4224 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 01:13 on Fri 20 Aug to 03:37 on Sat 21 Aug.", "fact": "2038-08-20T05:13:16Z → 2038-08-21T07:36:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:11–12:59 on the 20th, 12:11–12:59 on the 21st.", "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 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: paraviddha → only-day · margin 30853 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Valencia, 2038: Friday 20 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-20", "confidence": "determinate" } ], "quote": "In Valencia, Hala Ṣaṣṭhī 2038 falls on Friday 20 August. Ṣaṣṭhī runs from 01:13 on Fri 20 Aug to 03:37 on Sat 21 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22085, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-08-21T03:36:50-04:00", "utc": "2038-08-21T07:36:50Z", "ms": 2165989010481.4648 }, "end": { "local": "2038-08-22T06:02:43-04:00", "utc": "2038-08-22T10:02:43Z", "ms": 2166084162762.5461 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-21T03:36:50-04:00", "utc": "2038-08-21T07:36:50Z", "ms": 2165989010481.4648 }, "end": { "local": "2038-08-22T06:02:43-04:00", "utc": "2038-08-22T10:02:43Z", "ms": 2166084162762.5461 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-21", "window": { "start": { "local": "2038-08-21T12:11:04-04:00", "utc": "2038-08-21T16:11:04Z", "ms": 2166019863554.4224 }, "end": { "local": "2038-08-21T12:59:04-04:00", "utc": "2038-08-21T16:59:04Z", "ms": 2166022743554.4224 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-22", "window": { "start": { "local": "2038-08-22T12:10:48-04:00", "utc": "2038-08-22T16:10:48Z", "ms": 2166106248238.1167 }, "end": { "local": "2038-08-22T12:58:48-04:00", "utc": "2038-08-22T16:58:48Z", "ms": 2166109128238.1167 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:37 on Sat 21 Aug to 06:03 on Sun 22 Aug.", "fact": "2038-08-21T07:36:50Z → 2038-08-22T10:02:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:11–12:59 on the 21st, 12:11–12:59 on the 22nd.", "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 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: purvaviddha → only-day · margin 22085 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Valencia, 2038: Saturday 21 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitala-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 7 Sitala saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-21", "confidence": "determinate" } ], "quote": "In Valencia, Śītalā Saptamī 2038 falls on Saturday 21 August. Saptamī runs from 03:37 on Sat 21 Aug to 06:03 on Sun 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18219, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-08-22T06:02:43-04:00", "utc": "2038-08-22T10:02:43Z", "ms": 2166084162762.5461 }, "end": { "local": "2038-08-23T08:16:53-04:00", "utc": "2038-08-23T12:16:53Z", "ms": 2166178612820.3215 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-22T06:02:43-04:00", "utc": "2038-08-22T10:02:43Z", "ms": 2166084162762.5461 }, "end": { "local": "2038-08-23T08:16:53-04:00", "utc": "2038-08-23T12:16:53Z", "ms": 2166178612820.3215 } }, "kaala": "nishita", "days": [ { "local_date": "2038-08-21", "window": { "start": { "local": "2038-08-22T00:11:04-04:00", "utc": "2038-08-22T04:11:04Z", "ms": 2166063063618.8193 }, "end": { "local": "2038-08-22T00:59:04-04:00", "utc": "2038-08-22T04:59:04Z", "ms": 2166065943618.8193 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-22", "window": { "start": { "local": "2038-08-23T00:10:48-04:00", "utc": "2038-08-23T04:10:48Z", "ms": 2166149448135.8154 }, "end": { "local": "2038-08-23T00:58:48-04:00", "utc": "2038-08-23T04:58:48Z", "ms": 2166152328135.8154 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 06:03 on Sun 22 Aug to 08:17 on Mon 23 Aug.", "fact": "2038-08-22T10:02:43Z → 2038-08-23T12:16:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:11–00:59 on the 21st, 00:11–00:59 on the 22nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. 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. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18219 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Valencia, 2038: Sunday 22 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "janmashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami." } ], "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.", "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-22", "confidence": "determinate" } ], "quote": "In Valencia, Janmāṣṭamī 2038 falls on Sunday 22 August. Aṣṭamī runs from 06:03 on Sun 22 Aug to 08:17 on Mon 23 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-08-26", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17651, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-08-25T11:17:22-04:00", "utc": "2038-08-25T15:17:22Z", "ms": 2166362242280.7 }, "end": { "local": "2038-08-26T11:44:50-04:00", "utc": "2038-08-26T15:44:50Z", "ms": 2166450289508.6516 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-25T11:17:22-04:00", "utc": "2038-08-25T15:17:22Z", "ms": 2166362242280.7 }, "end": { "local": "2038-08-26T11:44:50-04:00", "utc": "2038-08-26T15:44:50Z", "ms": 2166450289508.6516 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-08-25", "window": { "start": { "local": "2038-08-25T06:23:11-04:00", "utc": "2038-08-25T10:23:11Z", "ms": 2166344591151.023 }, "end": { "local": "2038-08-25T06:23:11-04:00", "utc": "2038-08-25T10:23:11Z", "ms": 2166344591151.023 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-08-26", "window": { "start": { "local": "2038-08-26T06:23:10-04:00", "utc": "2038-08-26T10:23:10Z", "ms": 2166430990004.7288 }, "end": { "local": "2038-08-26T06:23:10-04:00", "utc": "2038-08-26T10:23:10Z", "ms": 2166430990004.7288 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:17 on Wed 25 Aug to 11:45 on Thu 26 Aug.", "fact": "2038-08-25T15:17:22Z → 2038-08-26T15:44:50Z" }, { "step": "kaala", "text": "Sunrise is at 06:23 on the 25th and 06:23 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 17651 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Valencia, 2038: Thursday 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": "2038-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-26", "confidence": "determinate" } ], "quote": "In Valencia, Ajā Ekādaśī 2038 falls on Thursday 26 August. Ekādaśī runs from 11:17 on Wed 25 Aug to 11:45 on Thu 26 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-08-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-08-27", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26321, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-08-27T11:25:02-04:00", "utc": "2038-08-27T15:25:02Z", "ms": 2166535501996.3083 }, "end": { "local": "2038-08-28T10:19:25-04:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-27T11:25:02-04:00", "utc": "2038-08-27T15:25:02Z", "ms": 2166535501996.3083 }, "end": { "local": "2038-08-28T10:19:25-04:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-08-27", "window": { "start": { "local": "2038-08-27T18:43:43-04:00", "utc": "2038-08-27T22:43:43Z", "ms": 2166561822547.7268 }, "end": { "local": "2038-08-27T20:16:58-04:00", "utc": "2038-08-28T00:16:58Z", "ms": 2166567417786.1426 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "2038-08-28", "window": { "start": { "local": "2038-08-28T18:43:09-04:00", "utc": "2038-08-28T22:43:09Z", "ms": 2166648188946.7134 }, "end": { "local": "2038-08-28T20:16:28-04:00", "utc": "2038-08-29T00:16:28Z", "ms": 2166653788397.8567 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:25 on Fri 27 Aug to 10:19 on Sat 28 Aug.", "fact": "2038-08-27T15:25:02Z → 2038-08-28T14:19:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:44–20:17 on the 27th, 18:43–20:16 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 93 of 93 minutes on the 27th and 0 of 93 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 26321 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Friday 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": "2038-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-27", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Friday 27 August. Trayodaśī runs from 11:25 on Fri 27 Aug to 10:19 on Sat 28 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-08-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30224, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-08-28T10:19:25-04:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "end": { "local": "2038-08-29T08:32:53-04:00", "utc": "2038-08-29T12:32:53Z", "ms": 2166697972856.1445 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-28T10:19:25-04:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "end": { "local": "2038-08-29T08:32:53-04:00", "utc": "2038-08-29T12:32:53Z", "ms": 2166697972856.1445 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-08-28", "window": { "start": { "local": "2038-08-28T18:43:09-04:00", "utc": "2038-08-28T22:43:09Z", "ms": 2166648188946.7134 }, "end": { "local": "2038-08-28T20:16:28-04:00", "utc": "2038-08-29T00:16:28Z", "ms": 2166653788397.8567 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "2038-08-29", "window": { "start": { "local": "2038-08-29T18:42:35-04:00", "utc": "2038-08-29T22:42:35Z", "ms": 2166734554929.7546 }, "end": { "local": "2038-08-29T20:15:59-04:00", "utc": "2038-08-30T00:15:59Z", "ms": 2166740158613.1042 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:19 on Sat 28 Aug to 08:33 on Sun 29 Aug.", "fact": "2038-08-28T14:19:25Z → 2038-08-29T12:32:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:16 on the 28th, 18:43–20:16 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 93 of 93 minutes on the 28th and 0 of 93 on the 29th.", "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 30224 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Valencia, 2038: Saturday 28 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-28", "confidence": "determinate" } ], "quote": "In Valencia, Aghora Caturdaśī 2038 falls on Saturday 28 August. Caturdaśī runs from 10:19 on Sat 28 Aug to 08:33 on Sun 29 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/shivaratri?on=2038-08-28", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27346, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-08-28T10:19:25-04:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "end": { "local": "2038-08-29T08:32:53-04:00", "utc": "2038-08-29T12:32:53Z", "ms": 2166697972856.1445 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-28T10:19:25-04:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "end": { "local": "2038-08-29T08:32:53-04:00", "utc": "2038-08-29T12:32:53Z", "ms": 2166697972856.1445 } }, "kaala": "nishita", "days": [ { "local_date": "2038-08-27", "window": { "start": { "local": "2038-08-28T00:09:25-04:00", "utc": "2038-08-28T04:09:25Z", "ms": 2166581364691.7861 }, "end": { "local": "2038-08-28T00:57:25-04:00", "utc": "2038-08-28T04:57:25Z", "ms": 2166584244691.7861 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-28", "window": { "start": { "local": "2038-08-29T00:09:07-04:00", "utc": "2038-08-29T04:09:07Z", "ms": 2166667746888.501 }, "end": { "local": "2038-08-29T00:57:07-04:00", "utc": "2038-08-29T04:57:07Z", "ms": 2166670626888.501 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:19 on Sat 28 Aug to 08:33 on Sun 29 Aug.", "fact": "2038-08-28T14:19:25Z → 2038-08-29T12:32:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 27th, 00:09–00:57 on the 28th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27346 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Saturday 28 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": "2038-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-28", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Saturday 28 August. Caturdaśī runs from 10:19 on Sat 28 Aug to 08:33 on Sun 29 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-08-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21342, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-08-30T06:12:50-04:00", "utc": "2038-08-30T10:12:50Z", "ms": 2166775969558.97 }, "end": { "local": "2038-08-31T03:28:08-04:00", "utc": "2038-08-31T07:28:08Z", "ms": 2166852487959.9263 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-30T06:12:50-04:00", "utc": "2038-08-30T10:12:50Z", "ms": 2166775969558.97 }, "end": { "local": "2038-08-31T03:28:08-04:00", "utc": "2038-08-31T07:28:08Z", "ms": 2166852487959.9263 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-30", "window": { "start": { "local": "2038-08-30T12:08:32-04:00", "utc": "2038-08-30T16:08:32Z", "ms": 2166797311533.4756 }, "end": { "local": "2038-08-30T12:56:32-04:00", "utc": "2038-08-30T16:56:32Z", "ms": 2166800191533.4756 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-31", "window": { "start": { "local": "2038-08-31T12:08:13-04:00", "utc": "2038-08-31T16:08:13Z", "ms": 2166883692863.1736 }, "end": { "local": "2038-08-31T12:56:13-04:00", "utc": "2038-08-31T16:56:13Z", "ms": 2166886572863.1736 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 06:13 on Mon 30 Aug to 03:28 on Tue 31 Aug.", "fact": "2038-08-30T10:12:50Z → 2038-08-31T07:28:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 30th, 12:08–12:56 on the 31st.", "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 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21342 s" }, { "step": "ruling", "text": "Rudra Vrata, Valencia, 2038: Monday 30 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-30", "confidence": "determinate" } ], "quote": "In Valencia, Rudra Vrata 2038 falls on Monday 30 August. Pratipadā runs from 06:13 on Mon 30 Aug to 03:28 on Tue 31 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30425, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-09-01T00:28:21-04:00", "utc": "2038-09-01T04:28:21Z", "ms": 2166928100662.1934 }, "end": { "local": "2038-09-01T21:22:59-04:00", "utc": "2038-09-02T01:22:59Z", "ms": 2167003379131.758 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-01T00:28:21-04:00", "utc": "2038-09-01T04:28:21Z", "ms": 2166928100662.1934 }, "end": { "local": "2038-09-01T21:22:59-04:00", "utc": "2038-09-02T01:22:59Z", "ms": 2167003379131.758 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-31", "window": { "start": { "local": "2038-08-31T12:08:13-04:00", "utc": "2038-08-31T16:08:13Z", "ms": 2166883692863.1736 }, "end": { "local": "2038-08-31T12:56:13-04:00", "utc": "2038-08-31T16:56:13Z", "ms": 2166886572863.1736 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-01", "window": { "start": { "local": "2038-09-01T12:07:54-04:00", "utc": "2038-09-01T16:07:54Z", "ms": 2166970073880.9285 }, "end": { "local": "2038-09-01T12:55:54-04:00", "utc": "2038-09-01T16:55:54Z", "ms": 2166972953880.9285 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 00:28 on Wed 1 Sep to 21:23 on Wed 1 Sep.", "fact": "2038-09-01T04:28:21Z → 2038-09-02T01:22:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 31st, 12:08–12:56 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30425 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Valencia, 2038: Wednesday 1 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": "2038-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-01", "confidence": "determinate" } ], "quote": "In Valencia, Haritālikā Vrata (Hartalika Teej) 2038 falls on Wednesday 1 September. Tṛtīyā runs from 00:28 on Wed 1 Sep to 21:23 on Wed 1 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19526, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-09-01T21:22:59-04:00", "utc": "2038-09-02T01:22:59Z", "ms": 2167003379131.758 }, "end": { "local": "2038-09-02T18:21:00-04:00", "utc": "2038-09-02T22:21:00Z", "ms": 2167078860211.925 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-01T21:22:59-04:00", "utc": "2038-09-02T01:22:59Z", "ms": 2167003379131.758 }, "end": { "local": "2038-09-02T18:21:00-04:00", "utc": "2038-09-02T22:21:00Z", "ms": 2167078860211.925 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-01", "window": { "start": { "local": "2038-09-01T12:07:54-04:00", "utc": "2038-09-01T16:07:54Z", "ms": 2166970073880.9285 }, "end": { "local": "2038-09-01T12:55:54-04:00", "utc": "2038-09-01T16:55:54Z", "ms": 2166972953880.9285 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-02", "window": { "start": { "local": "2038-09-02T12:07:35-04:00", "utc": "2038-09-02T16:07:35Z", "ms": 2167056454599.2598 }, "end": { "local": "2038-09-02T12:55:35-04:00", "utc": "2038-09-02T16:55:35Z", "ms": 2167059334599.2598 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:23 on Wed 1 Sep to 18:21 on Thu 2 Sep.", "fact": "2038-09-02T01:22:59Z → 2038-09-02T22:21:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 1st, 12:08–12:56 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19526 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Valencia, 2038: Thursday 2 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": "2038-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-02", "confidence": "determinate" } ], "quote": "In Valencia, Gaṇeśa Caturthī 2038 falls on Thursday 2 September. Caturthī runs from 21:23 on Wed 1 Sep to 18:21 on Thu 2 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9303, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-09-02T18:21:00-04:00", "utc": "2038-09-02T22:21:00Z", "ms": 2167078860211.925 }, "end": { "local": "2038-09-03T15:30:18-04:00", "utc": "2038-09-03T19:30:18Z", "ms": 2167155017683.0723 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-02T18:21:00-04:00", "utc": "2038-09-02T22:21:00Z", "ms": 2167078860211.925 }, "end": { "local": "2038-09-03T15:30:18-04:00", "utc": "2038-09-03T19:30:18Z", "ms": 2167155017683.0723 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-02", "window": { "start": { "local": "2038-09-02T12:07:35-04:00", "utc": "2038-09-02T16:07:35Z", "ms": 2167056454599.2598 }, "end": { "local": "2038-09-02T12:55:35-04:00", "utc": "2038-09-02T16:55:35Z", "ms": 2167059334599.2598 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-03", "window": { "start": { "local": "2038-09-03T12:07:15-04:00", "utc": "2038-09-03T16:07:15Z", "ms": 2167142835031.7637 }, "end": { "local": "2038-09-03T12:55:15-04:00", "utc": "2038-09-03T16:55:15Z", "ms": 2167145715031.7637 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 18:21 on Thu 2 Sep to 15:30 on Fri 3 Sep.", "fact": "2038-09-02T22:21:00Z → 2038-09-03T19:30:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 2nd, 12:07–12:55 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 9303 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Valencia, 2038: Friday 3 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": "2038-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-03", "confidence": "determinate" } ], "quote": "In Valencia, Ṛṣi Pañcamī 2038 falls on Friday 3 September. Pañcamī runs from 18:21 on Thu 2 Sep to 15:30 on Fri 3 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-04", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 143, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-09-03T15:30:18-04:00", "utc": "2038-09-03T19:30:18Z", "ms": 2167155017683.0723 }, "end": { "local": "2038-09-04T12:57:18-04:00", "utc": "2038-09-04T16:57:18Z", "ms": 2167232238358.8743 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-03T15:30:18-04:00", "utc": "2038-09-03T19:30:18Z", "ms": 2167155017683.0723 }, "end": { "local": "2038-09-04T12:57:18-04:00", "utc": "2038-09-04T16:57:18Z", "ms": 2167232238358.8743 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-03", "window": { "start": { "local": "2038-09-03T12:07:15-04:00", "utc": "2038-09-03T16:07:15Z", "ms": 2167142835031.7637 }, "end": { "local": "2038-09-03T12:55:15-04:00", "utc": "2038-09-03T16:55:15Z", "ms": 2167145715031.7637 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-04", "window": { "start": { "local": "2038-09-04T12:06:55-04:00", "utc": "2038-09-04T16:06:55Z", "ms": 2167229215193.3562 }, "end": { "local": "2038-09-04T12:54:55-04:00", "utc": "2038-09-04T16:54:55Z", "ms": 2167232095193.3562 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 15:30 on Fri 3 Sep to 12:57 on Sat 4 Sep.", "fact": "2038-09-03T19:30:18Z → 2038-09-04T16:57:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 3rd, 12:07–12:55 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 143 s < 300 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Valencia, 2038: Saturday 4 September.", "fact": "confidence: boundary (margin)" } ], "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": "2038-09-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-04", "confidence": "determinate" } ], "quote": "In Valencia, Sūrya Ṣaṣṭhī (Bhādrapada) 2038 falls on Saturday 4 September. Ṣaṣṭhī runs from 15:30 on Fri 3 Sep to 12:57 on Sat 4 Sep and covers all of madhyāhna that midday. It is 2 min 23 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-05", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 143, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-09-04T12:57:18-04:00", "utc": "2038-09-04T16:57:18Z", "ms": 2167232238358.8743 }, "end": { "local": "2038-09-05T10:46:45-04:00", "utc": "2038-09-05T14:46:45Z", "ms": 2167310804593.8596 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-04T12:57:18-04:00", "utc": "2038-09-04T16:57:18Z", "ms": 2167232238358.8743 }, "end": { "local": "2038-09-05T10:46:45-04:00", "utc": "2038-09-05T14:46:45Z", "ms": 2167310804593.8596 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-04", "window": { "start": { "local": "2038-09-04T12:06:55-04:00", "utc": "2038-09-04T16:06:55Z", "ms": 2167229215193.3562 }, "end": { "local": "2038-09-04T12:54:55-04:00", "utc": "2038-09-04T16:54:55Z", "ms": 2167232095193.3562 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-05", "window": { "start": { "local": "2038-09-05T12:06:35-04:00", "utc": "2038-09-05T16:06:35Z", "ms": 2167315595100.3647 }, "end": { "local": "2038-09-05T12:54:35-04:00", "utc": "2038-09-05T16:54:35Z", "ms": 2167318475100.3647 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:57 on Sat 4 Sep to 10:47 on Sun 5 Sep.", "fact": "2038-09-04T16:57:18Z → 2038-09-05T14:46:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 4th, 12:07–12:55 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 143 s < 300 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Valencia, 2038: Sunday 5 September.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "muktabharana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Muktabharana vrata (purvaviddha), Lalita saptami (Bengal & Orissa)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-04", "confidence": "determinate" } ], "quote": "In Valencia, Muktābharaṇa Vrata 2038 falls on Sunday 5 September. Saptamī runs from 12:57 on Sat 4 Sep to 10:47 on Sun 5 Sep, and reaches madhyāhna on neither day. It is 2 min 23 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4791, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-09-05T10:46:45-04:00", "utc": "2038-09-05T14:46:45Z", "ms": 2167310804593.8596 }, "end": { "local": "2038-09-06T09:01:27-04:00", "utc": "2038-09-06T13:01:27Z", "ms": 2167390887030.8076 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-05T10:46:45-04:00", "utc": "2038-09-05T14:46:45Z", "ms": 2167310804593.8596 }, "end": { "local": "2038-09-06T09:01:27-04:00", "utc": "2038-09-06T13:01:27Z", "ms": 2167390887030.8076 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-05", "window": { "start": { "local": "2038-09-05T12:06:35-04:00", "utc": "2038-09-05T16:06:35Z", "ms": 2167315595100.3647 }, "end": { "local": "2038-09-05T12:54:35-04:00", "utc": "2038-09-05T16:54:35Z", "ms": 2167318475100.3647 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-09-06", "window": { "start": { "local": "2038-09-06T12:06:15-04:00", "utc": "2038-09-06T16:06:15Z", "ms": 2167401974770.4922 }, "end": { "local": "2038-09-06T12:54:15-04:00", "utc": "2038-09-06T16:54:15Z", "ms": 2167404854770.4922 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:47 on Sun 5 Sep to 09:01 on Mon 6 Sep.", "fact": "2038-09-05T14:46:45Z → 2038-09-06T13:01:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 5th, 12:06–12:54 on the 6th.", "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 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4791 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Valencia, 2038: Sunday 5 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "radhashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)" } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-05", "confidence": "determinate" } ], "quote": "In Valencia, Rādhāṣṭamī 2038 falls on Sunday 5 September. Aṣṭamī runs from 10:47 on Sun 5 Sep to 09:01 on Mon 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-09-08", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-08", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 31, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-09-08T06:49:42-04:00", "utc": "2038-09-08T10:49:42Z", "ms": 2167555782200.443 }, "end": { "local": "2038-09-09T06:21:56-04:00", "utc": "2038-09-09T10:21:56Z", "ms": 2167640515748.415 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-08T06:49:42-04:00", "utc": "2038-09-08T10:49:42Z", "ms": 2167555782200.443 }, "end": { "local": "2038-09-09T06:21:56-04:00", "utc": "2038-09-09T10:21:56Z", "ms": 2167640515748.415 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-09-08", "window": { "start": { "local": "2038-09-08T06:22:31-04:00", "utc": "2038-09-08T10:22:31Z", "ms": 2167554151483.2766 }, "end": { "local": "2038-09-08T06:22:31-04:00", "utc": "2038-09-08T10:22:31Z", "ms": 2167554151483.2766 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-09-09", "window": { "start": { "local": "2038-09-09T06:22:27-04:00", "utc": "2038-09-09T10:22:27Z", "ms": 2167640547087.8462 }, "end": { "local": "2038-09-09T06:22:27-04:00", "utc": "2038-09-09T10:22:27Z", "ms": 2167640547087.8462 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:50 on Wed 8 Sep to 06:22 on Thu 9 Sep.", "fact": "2038-09-08T10:49:42Z → 2038-09-09T10:21:56Z" }, { "step": "kaala", "text": "Sunrise is at 06:23 on the 8th and 06:22 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 31 s < 300 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Valencia, 2038: Wednesday 8 September.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-08", "confidence": "boundary" } ], "quote": "In Valencia, Parivartanī Ekādaśī 2038 falls on Wednesday 8 September. Ekādaśī runs from 06:50 on Wed 8 Sep to 06:22 on Thu 9 Sep, and is current at sunrise on neither day. It is 0 min 31 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-09-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20597, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-09-09T06:21:56-04:00", "utc": "2038-09-09T10:21:56Z", "ms": 2167640515748.415 }, "end": { "local": "2038-09-10T06:18:01-04:00", "utc": "2038-09-10T10:18:01Z", "ms": 2167726680958.8765 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-09T06:21:56-04:00", "utc": "2038-09-09T10:21:56Z", "ms": 2167640515748.415 }, "end": { "local": "2038-09-10T06:18:01-04:00", "utc": "2038-09-10T10:18:01Z", "ms": 2167726680958.8765 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-09", "window": { "start": { "local": "2038-09-09T12:05:13-04:00", "utc": "2038-09-09T16:05:13Z", "ms": 2167661112554.5269 }, "end": { "local": "2038-09-09T12:53:13-04:00", "utc": "2038-09-09T16:53:13Z", "ms": 2167663992554.5269 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-09-10", "window": { "start": { "local": "2038-09-10T12:04:51-04:00", "utc": "2038-09-10T16:04:51Z", "ms": 2167747491476.8337 }, "end": { "local": "2038-09-10T12:52:51-04:00", "utc": "2038-09-10T16:52:51Z", "ms": 2167750371476.8337 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 06:22 on Thu 9 Sep to 06:18 on Fri 10 Sep.", "fact": "2038-09-09T10:21:56Z → 2038-09-10T10:18:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 9th, 12:05–12:53 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20597 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Valencia, 2038: Thursday 9 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": "2038-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-09", "confidence": "determinate" } ], "quote": "In Valencia, Vāmana Jayantī 2038 falls on Thursday 9 September. Dvādaśī runs from 06:22 on Thu 9 Sep to 06:18 on Fri 10 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/pradosha-vrata?on=2038-09-10", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36472, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-09-10T06:18:01-04:00", "utc": "2038-09-10T10:18:01Z", "ms": 2167726680958.8765 }, "end": { "local": "2038-09-11T06:37:10-04:00", "utc": "2038-09-11T10:37:10Z", "ms": 2167814229940.7285 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-10T06:18:01-04:00", "utc": "2038-09-10T10:18:01Z", "ms": 2167726680958.8765 }, "end": { "local": "2038-09-11T06:37:10-04:00", "utc": "2038-09-11T10:37:10Z", "ms": 2167814229940.7285 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-09-09", "window": { "start": { "local": "2038-09-09T18:35:58-04:00", "utc": "2038-09-09T22:35:58Z", "ms": 2167684558021.2078 }, "end": { "local": "2038-09-09T20:10:09-04:00", "utc": "2038-09-10T00:10:09Z", "ms": 2167690209293.666 } }, "covered_min": 0, "window_min": 94, "qualifies": false }, { "local_date": "2038-09-10", "window": { "start": { "local": "2038-09-10T18:35:20-04:00", "utc": "2038-09-10T22:35:20Z", "ms": 2167770920389.0222 }, "end": { "local": "2038-09-10T20:09:36-04:00", "utc": "2038-09-11T00:09:36Z", "ms": 2167776576061.5881 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:18 on Fri 10 Sep to 06:37 on Sat 11 Sep.", "fact": "2038-09-10T10:18:01Z → 2038-09-11T10:37:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:36–20:10 on the 9th, 18:35–20:10 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 94 minutes on the 9th and 94 of 94 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 36472 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Friday 10 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-10", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Friday 10 September. Trayodaśī runs from 06:18 on Fri 10 Sep to 06:37 on Sat 11 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-09-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-11", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 892, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-09-11T06:37:10-04:00", "utc": "2038-09-11T10:37:10Z", "ms": 2167814229940.7285 }, "end": { "local": "2038-09-12T07:19:13-04:00", "utc": "2038-09-12T11:19:13Z", "ms": 2167903152658.603 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-11T06:37:10-04:00", "utc": "2038-09-11T10:37:10Z", "ms": 2167814229940.7285 }, "end": { "local": "2038-09-12T07:19:13-04:00", "utc": "2038-09-12T11:19:13Z", "ms": 2167903152658.603 } }, "kaala": "udaya-3", "days": [ { "local_date": "2038-09-11", "window": { "start": { "local": "2038-09-11T06:22:18-04:00", "utc": "2038-09-11T10:22:18Z", "ms": 2167813337933.2659 }, "end": { "local": "2038-09-11T08:48:47-04:00", "utc": "2038-09-11T12:48:47Z", "ms": 2167822126866.455 } }, "covered_min": 132, "window_min": 146, "qualifies": false }, { "local_date": "2038-09-12", "window": { "start": { "local": "2038-09-12T06:22:13-04:00", "utc": "2038-09-12T10:22:13Z", "ms": 2167899733213.83 }, "end": { "local": "2038-09-12T08:48:36-04:00", "utc": "2038-09-12T12:48:36Z", "ms": 2167908515506.452 } }, "covered_min": 57, "window_min": 146, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:37 on Sat 11 Sep to 07:19 on Sun 12 Sep.", "fact": "2038-09-11T10:37:10Z → 2038-09-12T11:19:13Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:22–08:49 on the 11th, 06:22–08:49 on the 12th.", "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 132 of 146 minutes on the 11th and 57 of 146 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither morning qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 892 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Valencia, 2038: Saturday 11 September.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "2038-09-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-11", "confidence": "boundary" } ], "quote": "In Valencia, Ananta Caturdaśī 2038 falls on Saturday 11 September. Caturdaśī runs from 06:37 on Sat 11 Sep to 07:19 on Sun 12 Sep, and reaches the first three muhūrtas after sunrise on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-09-16", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18549, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-09-16T13:56:57-04:00", "utc": "2038-09-16T17:56:57Z", "ms": 2168272616986.0671 }, "end": { "local": "2038-09-17T16:24:00-04:00", "utc": "2038-09-17T20:24:00Z", "ms": 2168367839783.6855 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-16T13:56:57-04:00", "utc": "2038-09-16T17:56:57Z", "ms": 2168272616986.0671 }, "end": { "local": "2038-09-17T16:24:00-04:00", "utc": "2038-09-17T20:24:00Z", "ms": 2168367839783.6855 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-09-16", "window": { "start": { "local": "2038-09-16T20:54:11-04:00", "utc": "2038-09-17T00:54:11Z", "ms": 2168297651342.9304 }, "end": { "local": "2038-09-16T20:54:11-04:00", "utc": "2038-09-17T00:54:11Z", "ms": 2168297651342.9304 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-09-17", "window": { "start": { "local": "2038-09-17T21:33:09-04:00", "utc": "2038-09-18T01:33:09Z", "ms": 2168386389154.1428 }, "end": { "local": "2038-09-17T21:33:09-04:00", "utc": "2038-09-18T01:33:09Z", "ms": 2168386389154.1428 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:57 on Thu 16 Sep to 16:24 on Fri 17 Sep.", "fact": "2038-09-16T17:56:57Z → 2038-09-17T20:24:00Z" }, { "step": "kaala", "text": "Moonrise is at 20:54 on the 16th and 21:33 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18549 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Thursday 16 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": "2038-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-16", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Thursday 16 September. Caturthī runs from 13:57 on Thu 16 Sep to 16:24 on Fri 17 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-09-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5524, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-09-18T18:57:20-04:00", "utc": "2038-09-18T22:57:20Z", "ms": 2168463440229.0037 }, "end": { "local": "2038-09-19T21:25:12-04:00", "utc": "2038-09-20T01:25:12Z", "ms": 2168558712415.3604 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-18T18:57:20-04:00", "utc": "2038-09-18T22:57:20Z", "ms": 2168463440229.0037 }, "end": { "local": "2038-09-19T21:25:12-04:00", "utc": "2038-09-20T01:25:12Z", "ms": 2168558712415.3604 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-09-18", "window": { "start": { "local": "2038-09-18T22:13:56-04:00", "utc": "2038-09-19T02:13:56Z", "ms": 2168475236494.0776 }, "end": { "local": "2038-09-18T22:13:56-04:00", "utc": "2038-09-19T02:13:56Z", "ms": 2168475236494.0776 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-09-19", "window": { "start": { "local": "2038-09-19T22:57:16-04:00", "utc": "2038-09-20T02:57:16Z", "ms": 2168564236190.1292 }, "end": { "local": "2038-09-19T22:57:16-04:00", "utc": "2038-09-20T02:57:16Z", "ms": 2168564236190.1292 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 18:57 on Sat 18 Sep to 21:25 on Sun 19 Sep.", "fact": "2038-09-18T22:57:20Z → 2038-09-20T01:25:12Z" }, { "step": "kaala", "text": "Moonrise is at 22:14 on the 18th and 22:57 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is on the 18th and is not on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5524 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Valencia, 2038: Saturday 18 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-18", "confidence": "determinate" } ], "quote": "In Valencia, Candra Ṣaṣṭhī 2038 falls on Saturday 18 September. Ṣaṣṭhī runs from 18:57 on Sat 18 Sep to 21:25 on Sun 19 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-20", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 577, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-09-20T23:34:03-04:00", "utc": "2038-09-21T03:34:03Z", "ms": 2168652842874.5251 }, "end": { "local": "2038-09-22T01:10:32-04:00", "utc": "2038-09-22T05:10:32Z", "ms": 2168745031821.4312 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-20T23:34:03-04:00", "utc": "2038-09-21T03:34:03Z", "ms": 2168652842874.5251 }, "end": { "local": "2038-09-22T01:10:32-04:00", "utc": "2038-09-22T05:10:32Z", "ms": 2168745031821.4312 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-09-20", "window": { "start": { "local": "2038-09-20T23:43:40-04:00", "utc": "2038-09-21T03:43:40Z", "ms": 2168653420095.4077 }, "end": { "local": "2038-09-20T23:43:40-04:00", "utc": "2038-09-21T03:43:40Z", "ms": 2168653420095.4077 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-09-21", "window": { "start": { "local": "2038-09-22T00:33:22-04:00", "utc": "2038-09-22T04:33:22Z", "ms": 2168742801531.847 }, "end": { "local": "2038-09-22T00:33:22-04:00", "utc": "2038-09-22T04:33:22Z", "ms": 2168742801531.847 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 23:34 on Mon 20 Sep to 01:11 on Wed 22 Sep.", "fact": "2038-09-21T03:34:03Z → 2038-09-22T05:10:32Z" }, { "step": "kaala", "text": "Moonrise is at 23:44 on the 20th and 00:33 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "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 577 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Valencia, 2038: Monday 20 September.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-20", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-20", "confidence": "boundary" } ], "quote": "In Valencia, Mahālakṣmī Vrata Samāpana 2038 falls on Monday 20 September. Aṣṭamī runs from 23:34 on Mon 20 Sep to 01:11 on Wed 22 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12603, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-09-20T23:34:03-04:00", "utc": "2038-09-21T03:34:03Z", "ms": 2168652842874.5251 }, "end": { "local": "2038-09-22T01:10:32-04:00", "utc": "2038-09-22T05:10:32Z", "ms": 2168745031821.4312 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-20T23:34:03-04:00", "utc": "2038-09-21T03:34:03Z", "ms": 2168652842874.5251 }, "end": { "local": "2038-09-22T01:10:32-04:00", "utc": "2038-09-22T05:10:32Z", "ms": 2168745031821.4312 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-09-20", "window": { "start": { "local": "2038-09-20T18:29:00-04:00", "utc": "2038-09-20T22:29:00Z", "ms": 2168634539537.944 }, "end": { "local": "2038-09-20T20:04:00-04:00", "utc": "2038-09-21T00:04:00Z", "ms": 2168640239619.196 } }, "covered_min": 0, "window_min": 95, "qualifies": false }, { "local_date": "2038-09-21", "window": { "start": { "local": "2038-09-21T18:28:22-04:00", "utc": "2038-09-21T22:28:22Z", "ms": 2168720901543.6272 }, "end": { "local": "2038-09-21T20:03:26-04:00", "utc": "2038-09-22T00:03:26Z", "ms": 2168726606092.6716 } }, "covered_min": 95, "window_min": 95, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 23:34 on Mon 20 Sep to 01:11 on Wed 22 Sep.", "fact": "2038-09-21T03:34:03Z → 2038-09-22T05:10:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:29–20:04 on the 20th, 18:28–20:03 on the 21st.", "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 95 minutes on the 20th and 95 of 95 on the 21st.", "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 12603 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Valencia, 2038: Tuesday 21 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "jitashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-21", "confidence": "determinate" } ], "quote": "In Valencia, Jitāṣṭamī (Jitiya) 2038 falls on Tuesday 21 September. Aṣṭamī runs from 23:34 on Mon 20 Sep to 01:11 on Wed 22 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-09-24", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15266, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-09-24T02:06:51-04:00", "utc": "2038-09-24T06:06:51Z", "ms": 2168921210713.277 }, "end": { "local": "2038-09-25T01:17:47-04:00", "utc": "2038-09-25T05:17:47Z", "ms": 2169004666527.4807 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-24T02:06:51-04:00", "utc": "2038-09-24T06:06:51Z", "ms": 2168921210713.277 }, "end": { "local": "2038-09-25T01:17:47-04:00", "utc": "2038-09-25T05:17:47Z", "ms": 2169004666527.4807 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-09-24", "window": { "start": { "local": "2038-09-24T06:21:17-04:00", "utc": "2038-09-24T10:21:17Z", "ms": 2168936477094.7048 }, "end": { "local": "2038-09-24T06:21:17-04:00", "utc": "2038-09-24T10:21:17Z", "ms": 2168936477094.7048 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-09-25", "window": { "start": { "local": "2038-09-25T06:21:13-04:00", "utc": "2038-09-25T10:21:13Z", "ms": 2169022873047.8306 }, "end": { "local": "2038-09-25T06:21:13-04:00", "utc": "2038-09-25T10:21:13Z", "ms": 2169022873047.8306 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:07 on Fri 24 Sep to 01:18 on Sat 25 Sep.", "fact": "2038-09-24T06:06:51Z → 2038-09-25T05:17:47Z" }, { "step": "kaala", "text": "Sunrise is at 06:21 on the 24th and 06:21 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 15266 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Valencia, 2038: Friday 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": "2038-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-24", "confidence": "determinate" } ], "quote": "In Valencia, Indirā Ekādaśī 2038 falls on Friday 24 September. Ekādaśī runs from 02:07 on Fri 24 Sep to 01:18 on Sat 25 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-09-26", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4557, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-09-25T23:39:00-04:00", "utc": "2038-09-26T03:39:00Z", "ms": 2169085139667.5393 }, "end": { "local": "2038-09-26T21:16:38-04:00", "utc": "2038-09-27T01:16:38Z", "ms": 2169162998003.666 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-25T23:39:00-04:00", "utc": "2038-09-26T03:39:00Z", "ms": 2169085139667.5393 }, "end": { "local": "2038-09-26T21:16:38-04:00", "utc": "2038-09-27T01:16:38Z", "ms": 2169162998003.666 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-09-25", "window": { "start": { "local": "2038-09-25T18:25:51-04:00", "utc": "2038-09-25T22:25:51Z", "ms": 2169066350912.2322 }, "end": { "local": "2038-09-25T20:01:13-04:00", "utc": "2038-09-26T00:01:13Z", "ms": 2169072073347.9133 } }, "covered_min": 0, "window_min": 95, "qualifies": false }, { "local_date": "2038-09-26", "window": { "start": { "local": "2038-09-26T18:25:14-04:00", "utc": "2038-09-26T22:25:14Z", "ms": 2169152713699.4514 }, "end": { "local": "2038-09-26T20:00:41-04:00", "utc": "2038-09-27T00:00:41Z", "ms": 2169158440606.9146 } }, "covered_min": 95, "window_min": 95, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:39 on Sat 25 Sep to 21:17 on Sun 26 Sep.", "fact": "2038-09-26T03:39:00Z → 2038-09-27T01:16:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:26–20:01 on the 25th, 18:25–20:01 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 95 minutes on the 25th and 95 of 95 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 4557 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Sunday 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": "2038-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-26", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Sunday 26 September. Trayodaśī runs from 23:39 on Sat 25 Sep to 21:17 on Sun 26 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-09-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-09-26", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9752, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-09-26T21:16:38-04:00", "utc": "2038-09-27T01:16:38Z", "ms": 2169162998003.666 }, "end": { "local": "2038-09-27T18:19:25-04:00", "utc": "2038-09-27T22:19:25Z", "ms": 2169238765034.9995 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-26T21:16:38-04:00", "utc": "2038-09-27T01:16:38Z", "ms": 2169162998003.666 }, "end": { "local": "2038-09-27T18:19:25-04:00", "utc": "2038-09-27T22:19:25Z", "ms": 2169238765034.9995 } }, "kaala": "nishita", "days": [ { "local_date": "2038-09-26", "window": { "start": { "local": "2038-09-26T23:59:10-04:00", "utc": "2038-09-27T03:59:10Z", "ms": 2169172749602.4385 }, "end": { "local": "2038-09-27T00:47:10-04:00", "utc": "2038-09-27T04:47:10Z", "ms": 2169175629602.4385 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-09-27", "window": { "start": { "local": "2038-09-27T23:58:49-04:00", "utc": "2038-09-28T03:58:49Z", "ms": 2169259129371.8354 }, "end": { "local": "2038-09-28T00:46:49-04:00", "utc": "2038-09-28T04:46:49Z", "ms": 2169262009371.8354 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:17 on Sun 26 Sep to 18:19 on Mon 27 Sep.", "fact": "2038-09-27T01:16:38Z → 2038-09-27T22:19:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:59–00:47 on the 26th, 23:59–00:47 on the 27th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9752 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Sunday 26 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": "2038-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-26", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Sunday 26 September. Caturdaśī runs from 21:17 on Sun 26 Sep to 18:19 on Mon 27 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-09-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3706, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2038-09-27T18:19:25-04:00", "utc": "2038-09-27T22:19:25Z", "ms": 2169238765034.9995 }, "end": { "local": "2038-09-28T14:57:39-04:00", "utc": "2038-09-28T18:57:39Z", "ms": 2169313058847.9702 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-27T18:19:25-04:00", "utc": "2038-09-27T22:19:25Z", "ms": 2169238765034.9995 }, "end": { "local": "2038-09-28T14:57:39-04:00", "utc": "2038-09-28T18:57:39Z", "ms": 2169313058847.9702 } }, "kaala": "aparahna", "days": [ { "local_date": "2038-09-27", "window": { "start": { "local": "2038-09-27T13:35:12-04:00", "utc": "2038-09-27T17:35:12Z", "ms": 2169221712225.3777 }, "end": { "local": "2038-09-27T15:59:54-04:00", "utc": "2038-09-27T19:59:54Z", "ms": 2169230394465.3618 } }, "covered_min": 0, "window_min": 145, "qualifies": false }, { "local_date": "2038-09-28", "window": { "start": { "local": "2038-09-28T13:34:49-04:00", "utc": "2038-09-28T17:34:49Z", "ms": 2169308088784.6067 }, "end": { "local": "2038-09-28T15:59:24-04:00", "utc": "2038-09-28T19:59:24Z", "ms": 2169316764366.7004 } }, "covered_min": 83, "window_min": 145, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 18:19 on Mon 27 Sep to 14:58 on Tue 28 Sep.", "fact": "2038-09-27T22:19:25Z → 2038-09-28T18:57:39Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:35–16:00 on the 27th, 13:35–15:59 on the 28th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 0 of 145 minutes on the 27th and 83 of 145 on the 28th.", "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 3706 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Valencia, 2038: Tuesday 28 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-28", "confidence": "determinate" } ], "quote": "In Valencia, Mahālaya Amāvāsyā 2038 falls on Tuesday 28 September. Amāvasyā runs from 18:19 on Mon 27 Sep to 14:58 on Tue 28 Sep and covers 83 of 145 minutes of aparāhṇa that afternoon.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2150, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-09-28T14:57:39-04:00", "utc": "2038-09-28T18:57:39Z", "ms": 2169313058847.9702 }, "end": { "local": "2038-09-29T11:22:22-04:00", "utc": "2038-09-29T15:22:22Z", "ms": 2169386541601.289 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-28T14:57:39-04:00", "utc": "2038-09-28T18:57:39Z", "ms": 2169313058847.9702 }, "end": { "local": "2038-09-29T11:22:22-04:00", "utc": "2038-09-29T15:22:22Z", "ms": 2169386541601.289 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-28", "window": { "start": { "local": "2038-09-28T11:58:31-04:00", "utc": "2038-09-28T15:58:31Z", "ms": 2169302310993.5596 }, "end": { "local": "2038-09-28T12:46:31-04:00", "utc": "2038-09-28T16:46:31Z", "ms": 2169305190993.5596 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-29", "window": { "start": { "local": "2038-09-29T11:58:11-04:00", "utc": "2038-09-29T15:58:11Z", "ms": 2169388691119.8496 }, "end": { "local": "2038-09-29T12:46:11-04:00", "utc": "2038-09-29T16:46:11Z", "ms": 2169391571119.8496 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 14:58 on Tue 28 Sep to 11:22 on Wed 29 Sep.", "fact": "2038-09-28T18:57:39Z → 2038-09-29T15:22:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 28th, 11:58–12:46 on the 29th.", "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 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 2150 s" }, { "step": "ruling", "text": "Navarātrārambha, Valencia, 2038: Wednesday 29 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-29", "confidence": "determinate" } ], "quote": "In Valencia, Navarātrārambha (Navratri) 2038 falls on Wednesday 29 September. Pratipadā runs from 14:58 on Tue 28 Sep to 11:22 on Wed 29 Sep, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-10-01", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27743, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-01T04:15:10-04:00", "utc": "2038-10-01T08:15:10Z", "ms": 2169533709626.0986 }, "end": { "local": "2038-10-02T01:03:30-04:00", "utc": "2038-10-02T05:03:30Z", "ms": 2169608610008.1697 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-01T04:15:10-04:00", "utc": "2038-10-01T08:15:10Z", "ms": 2169533709626.0986 }, "end": { "local": "2038-10-02T01:03:30-04:00", "utc": "2038-10-02T05:03:30Z", "ms": 2169608610008.1697 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-01", "window": { "start": { "local": "2038-10-01T11:57:32-04:00", "utc": "2038-10-01T15:57:32Z", "ms": 2169561452148.7754 }, "end": { "local": "2038-10-01T12:45:32-04:00", "utc": "2038-10-01T16:45:32Z", "ms": 2169564332148.7754 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-10-02", "window": { "start": { "local": "2038-10-02T11:57:13-04:00", "utc": "2038-10-02T15:57:13Z", "ms": 2169647833083.4424 }, "end": { "local": "2038-10-02T12:45:13-04:00", "utc": "2038-10-02T16:45:13Z", "ms": 2169650713083.4424 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:15 on Fri 1 Oct to 01:04 on Sat 2 Oct.", "fact": "2038-10-01T08:15:10Z → 2038-10-02T05:03:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 1st, 11:57–12:45 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "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 27743 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Friday 1 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": "2038-10-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-01", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Friday 1 October. Caturthī runs from 04:15 on Fri 1 Oct to 01:04 on Sat 2 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-10-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36984, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-10-03T20:04:22-04:00", "utc": "2038-10-04T00:04:22Z", "ms": 2169763461839.322 }, "end": { "local": "2038-10-04T18:26:58-04:00", "utc": "2038-10-04T22:26:58Z", "ms": 2169844018453.0059 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-03T20:04:22-04:00", "utc": "2038-10-04T00:04:22Z", "ms": 2169763461839.322 }, "end": { "local": "2038-10-04T18:26:58-04:00", "utc": "2038-10-04T22:26:58Z", "ms": 2169844018453.0059 } }, "kaala": "udaya-1", "days": [ { "local_date": "2038-10-04", "window": { "start": { "local": "2038-10-04T06:20:46-04:00", "utc": "2038-10-04T10:20:46Z", "ms": 2169800446313.5505 }, "end": { "local": "2038-10-04T07:08:45-04:00", "utc": "2038-10-04T11:08:45Z", "ms": 2169803324922.392 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-10-05", "window": { "start": { "local": "2038-10-05T06:20:45-04:00", "utc": "2038-10-05T10:20:45Z", "ms": 2169886844668.3145 }, "end": { "local": "2038-10-05T07:08:41-04:00", "utc": "2038-10-05T11:08:41Z", "ms": 2169889721083.1316 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:04 on Sun 3 Oct to 18:27 on Mon 4 Oct.", "fact": "2038-10-04T00:04:22Z → 2038-10-04T22:26:58Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:21–07:09 on the 4th, 06:21–07:09 on the 5th.", "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.", "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 36984 s" }, { "step": "ruling", "text": "Durgā Saptamī, Valencia, 2038: Monday 4 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": "2038-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-04", "confidence": "determinate" } ], "quote": "In Valencia, Durgā Saptamī 2038 falls on Monday 4 October. Saptamī runs from 20:04 on Sun 3 Oct to 18:27 on Mon 4 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16965, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-10-04T18:26:58-04:00", "utc": "2038-10-04T22:26:58Z", "ms": 2169844018453.0059 }, "end": { "local": "2038-10-05T17:27:03-04:00", "utc": "2038-10-05T21:27:03Z", "ms": 2169926822733.1282 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-04T18:26:58-04:00", "utc": "2038-10-04T22:26:58Z", "ms": 2169844018453.0059 }, "end": { "local": "2038-10-05T17:27:03-04:00", "utc": "2038-10-05T21:27:03Z", "ms": 2169926822733.1282 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-04", "window": { "start": { "local": "2038-10-04T11:56:36-04:00", "utc": "2038-10-04T15:56:36Z", "ms": 2169820595879.8625 }, "end": { "local": "2038-10-04T12:44:36-04:00", "utc": "2038-10-04T16:44:36Z", "ms": 2169823475879.8625 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-05", "window": { "start": { "local": "2038-10-05T11:56:18-04:00", "utc": "2038-10-05T15:56:18Z", "ms": 2169906977779.4429 }, "end": { "local": "2038-10-05T12:44:18-04:00", "utc": "2038-10-05T16:44:18Z", "ms": 2169909857779.4429 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:27 on Mon 4 Oct to 17:27 on Tue 5 Oct.", "fact": "2038-10-04T22:26:58Z → 2038-10-05T21:27:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 4th, 11:56–12:44 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16965 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Valencia, 2038: Tuesday 5 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": "2038-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-05", "confidence": "determinate" } ], "quote": "In Valencia, Mahāṣṭamī (Durga Ashtami) 2038 falls on Tuesday 5 October. Aṣṭamī runs from 18:27 on Mon 4 Oct to 17:27 on Tue 5 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15577, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2038-10-05T17:27:03-04:00", "utc": "2038-10-05T21:27:03Z", "ms": 2169926822733.1282 }, "end": { "local": "2038-10-06T17:03:37-04:00", "utc": "2038-10-06T21:03:37Z", "ms": 2170011817111.3381 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-05T17:27:03-04:00", "utc": "2038-10-05T21:27:03Z", "ms": 2169926822733.1282 }, "end": { "local": "2038-10-06T17:03:37-04:00", "utc": "2038-10-06T21:03:37Z", "ms": 2170011817111.3381 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-05", "window": { "start": { "local": "2038-10-05T11:56:18-04:00", "utc": "2038-10-05T15:56:18Z", "ms": 2169906977779.4429 }, "end": { "local": "2038-10-05T12:44:18-04:00", "utc": "2038-10-05T16:44:18Z", "ms": 2169909857779.4429 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-06", "window": { "start": { "local": "2038-10-06T11:56:00-04:00", "utc": "2038-10-06T15:56:00Z", "ms": 2169993360040.0652 }, "end": { "local": "2038-10-06T12:44:00-04:00", "utc": "2038-10-06T16:44:00Z", "ms": 2169996240040.0652 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:27 on Tue 5 Oct to 17:04 on Wed 6 Oct.", "fact": "2038-10-05T21:27:03Z → 2038-10-06T21:03:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 5th, 11:56–12:44 on the 6th.", "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 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15577 s" }, { "step": "ruling", "text": "Mahānavamī, Valencia, 2038: Wednesday 6 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": "2038-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-06", "confidence": "determinate" } ], "quote": "In Valencia, Mahānavamī 2038 falls on Wednesday 6 October. Navamī runs from 17:27 on Tue 5 Oct to 17:04 on Wed 6 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3888, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2038-10-06T17:03:37-04:00", "utc": "2038-10-06T21:03:37Z", "ms": 2170011817111.3381 }, "end": { "local": "2038-10-07T17:13:55-04:00", "utc": "2038-10-07T21:13:55Z", "ms": 2170098834666.9163 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "2038-10-06T22:00:19-04:00", "utc": "2038-10-07T02:00:19Z", "ms": 2170029619140.0254 }, "end": { "local": "2038-10-07T17:13:55-04:00", "utc": "2038-10-07T21:13:55Z", "ms": 2170098834666.9163 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "2038-10-06T22:00:19-04:00", "utc": "2038-10-07T02:00:19Z", "ms": 2170029619140.0254 }, "end": { "local": "2038-10-07T22:55:06-04:00", "utc": "2038-10-08T02:55:06Z", "ms": 2170119305516.164 } } }, "kaala": "daytime", "days": [ { "local_date": "2038-10-06", "window": { "start": { "local": "2038-10-06T06:20:43-04:00", "utc": "2038-10-06T10:20:43Z", "ms": 2169973243344.137 }, "end": { "local": "2038-10-06T18:19:17-04:00", "utc": "2038-10-06T22:19:17Z", "ms": 2170016356735.9934 } }, "covered_min": 0, "window_min": 719, "qualifies": false }, { "local_date": "2038-10-07", "window": { "start": { "local": "2038-10-07T06:20:42-04:00", "utc": "2038-10-07T10:20:42Z", "ms": 2170059642358.9426 }, "end": { "local": "2038-10-07T18:18:43-04:00", "utc": "2038-10-07T22:18:43Z", "ms": 2170102723006.537 } }, "covered_min": 653, "window_min": 718, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 17:04 on Wed 6 Oct to 17:14 on Thu 7 Oct, and Śravaṇa from 22:00 on Wed 6 Oct to 22:55 on Thu 7 Oct. They are together from 22:00 on Wed 6 Oct to 17:14 on Thu 7 Oct.", "fact": "2038-10-07T02:00:19Z → 2038-10-07T21:13:55Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:21–18:19 on the 6th, 06:21–18:19 on the 7th.", "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 719 minutes on the 6th and 653 of 718 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3888 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Valencia, 2038: Thursday 7 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": "2038-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-07", "confidence": "determinate" } ], "quote": "In Valencia, Vijayā Daśamī (Dussehra) 2038 falls on Thursday 7 October. Daśamī runs from 17:04 on Wed 6 Oct to 17:14 on Thu 7 Oct and is with Śravaṇa in the day time that day, for 653 minutes.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-10-08", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39192, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-10-07T17:13:55-04:00", "utc": "2038-10-07T21:13:55Z", "ms": 2170098834666.9163 }, "end": { "local": "2038-10-08T17:54:07-04:00", "utc": "2038-10-08T21:54:07Z", "ms": 2170187646633.886 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-07T17:13:55-04:00", "utc": "2038-10-07T21:13:55Z", "ms": 2170098834666.9163 }, "end": { "local": "2038-10-08T17:54:07-04:00", "utc": "2038-10-08T21:54:07Z", "ms": 2170187646633.886 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-10-07", "window": { "start": { "local": "2038-10-07T06:20:42-04:00", "utc": "2038-10-07T10:20:42Z", "ms": 2170059642358.9426 }, "end": { "local": "2038-10-07T06:20:42-04:00", "utc": "2038-10-07T10:20:42Z", "ms": 2170059642358.9426 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-10-08", "window": { "start": { "local": "2038-10-08T06:20:42-04:00", "utc": "2038-10-08T10:20:42Z", "ms": 2170146041731.2378 }, "end": { "local": "2038-10-08T06:20:42-04:00", "utc": "2038-10-08T10:20:42Z", "ms": 2170146041731.2378 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:14 on Thu 7 Oct to 17:54 on Fri 8 Oct.", "fact": "2038-10-07T21:13:55Z → 2038-10-08T21:54:07Z" }, { "step": "kaala", "text": "Sunrise is at 06:21 on the 7th and 06:21 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 39192 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Valencia, 2038: Friday 8 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-08", "confidence": "determinate" } ], "quote": "In Valencia, Pāśāṅkuśā Ekādaśī 2038 falls on Friday 8 October. Ekādaśī runs from 17:14 on Thu 7 Oct to 17:54 on Fri 8 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-10-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-10-10", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-10", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2109, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-10-09T19:00:13-04:00", "utc": "2038-10-09T23:00:13Z", "ms": 2170278013251.8242 }, "end": { "local": "2038-10-10T20:28:42-04:00", "utc": "2038-10-11T00:28:42Z", "ms": 2170369722331.2488 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-09T19:00:13-04:00", "utc": "2038-10-09T23:00:13Z", "ms": 2170278013251.8242 }, "end": { "local": "2038-10-10T20:28:42-04:00", "utc": "2038-10-11T00:28:42Z", "ms": 2170369722331.2488 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-09", "window": { "start": { "local": "2038-10-09T18:17:37-04:00", "utc": "2038-10-09T22:17:37Z", "ms": 2170275456921.2627 }, "end": { "local": "2038-10-09T19:54:02-04:00", "utc": "2038-10-09T23:54:02Z", "ms": 2170281241548.3013 } }, "covered_min": 54, "window_min": 96, "qualifies": true }, { "local_date": "2038-10-10", "window": { "start": { "local": "2038-10-10T18:17:05-04:00", "utc": "2038-10-10T22:17:05Z", "ms": 2170361824615.0872 }, "end": { "local": "2038-10-10T19:53:34-04:00", "utc": "2038-10-10T23:53:34Z", "ms": 2170367613624.1157 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:00 on Sat 9 Oct to 20:29 on Sun 10 Oct.", "fact": "2038-10-09T23:00:13Z → 2038-10-11T00:28:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:18–19:54 on the 9th, 18:17–19:54 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 54 of 96 minutes on the 9th and 96 of 96 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2109 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Sunday 10 October.", "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": "2038-10-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-10", "confidence": "boundary" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Sunday 10 October. Trayodaśī runs from 19:00 on Sat 9 Oct to 20:29 on Sun 10 Oct and covers all of pradoṣa that evening. It also reaches the previous evening for 54 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/valencia/festivals/2038/pradosha-vrata?on=2038-10-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40592, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-16T07:48:40-04:00", "utc": "2038-10-16T11:48:40Z", "ms": 2170842519847.9683 }, "end": { "local": "2038-10-17T10:22:18-04:00", "utc": "2038-10-17T14:22:18Z", "ms": 2170938138110.5227 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-16T07:48:40-04:00", "utc": "2038-10-16T11:48:40Z", "ms": 2170842519847.9683 }, "end": { "local": "2038-10-17T10:22:18-04:00", "utc": "2038-10-17T14:22:18Z", "ms": 2170938138110.5227 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-10-16", "window": { "start": { "local": "2038-10-16T20:53:51-04:00", "utc": "2038-10-17T00:53:51Z", "ms": 2170889631272.6436 }, "end": { "local": "2038-10-16T20:53:51-04:00", "utc": "2038-10-17T00:53:51Z", "ms": 2170889631272.6436 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-10-17", "window": { "start": { "local": "2038-10-17T21:38:50-04:00", "utc": "2038-10-18T01:38:50Z", "ms": 2170978729888.6785 }, "end": { "local": "2038-10-17T21:38:50-04:00", "utc": "2038-10-18T01:38:50Z", "ms": 2170978729888.6785 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:49 on Sat 16 Oct to 10:22 on Sun 17 Oct.", "fact": "2038-10-16T11:48:40Z → 2038-10-17T14:22:18Z" }, { "step": "kaala", "text": "Moonrise is at 20:54 on the 16th and 21:39 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 40592 s" }, { "step": "ruling", "text": "Karaka Caturthī, Valencia, 2038: Saturday 16 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "karaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-16", "confidence": "determinate" } ], "quote": "In Valencia, Karaka Caturthī (Karwa Chauth) 2038 falls on Saturday 16 October. Caturthī runs from 07:49 on Sat 16 Oct to 10:22 on Sun 17 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-10-16", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40592, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-16T07:48:40-04:00", "utc": "2038-10-16T11:48:40Z", "ms": 2170842519847.9683 }, "end": { "local": "2038-10-17T10:22:18-04:00", "utc": "2038-10-17T14:22:18Z", "ms": 2170938138110.5227 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-16T07:48:40-04:00", "utc": "2038-10-16T11:48:40Z", "ms": 2170842519847.9683 }, "end": { "local": "2038-10-17T10:22:18-04:00", "utc": "2038-10-17T14:22:18Z", "ms": 2170938138110.5227 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-10-16", "window": { "start": { "local": "2038-10-16T20:53:51-04:00", "utc": "2038-10-17T00:53:51Z", "ms": 2170889631272.6436 }, "end": { "local": "2038-10-16T20:53:51-04:00", "utc": "2038-10-17T00:53:51Z", "ms": 2170889631272.6436 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-10-17", "window": { "start": { "local": "2038-10-17T21:38:50-04:00", "utc": "2038-10-18T01:38:50Z", "ms": 2170978729888.6785 }, "end": { "local": "2038-10-17T21:38:50-04:00", "utc": "2038-10-18T01:38:50Z", "ms": 2170978729888.6785 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:49 on Sat 16 Oct to 10:22 on Sun 17 Oct.", "fact": "2038-10-16T11:48:40Z → 2038-10-17T14:22:18Z" }, { "step": "kaala", "text": "Moonrise is at 20:54 on the 16th and 21:39 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40592 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Saturday 16 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": "2038-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-16", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Saturday 16 October. Caturthī runs from 07:49 on Sat 16 Oct to 10:22 on Sun 17 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-10-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29440, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-10-20T15:59:45-04:00", "utc": "2038-10-20T19:59:45Z", "ms": 2171217585349.3984 }, "end": { "local": "2038-10-21T16:35:03-04:00", "utc": "2038-10-21T20:35:03Z", "ms": 2171306102677.7656 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-20T15:59:45-04:00", "utc": "2038-10-20T19:59:45Z", "ms": 2171217585349.3984 }, "end": { "local": "2038-10-21T16:35:03-04:00", "utc": "2038-10-21T20:35:03Z", "ms": 2171306102677.7656 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-10-20", "window": { "start": { "local": "2038-10-21T00:10:25-04:00", "utc": "2038-10-21T04:10:25Z", "ms": 2171247024869.815 }, "end": { "local": "2038-10-21T00:10:25-04:00", "utc": "2038-10-21T04:10:25Z", "ms": 2171247024869.815 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-10-21", "window": { "start": { "local": "2038-10-22T01:04:59-04:00", "utc": "2038-10-22T05:04:59Z", "ms": 2171336698737.0361 }, "end": { "local": "2038-10-22T01:04:59-04:00", "utc": "2038-10-22T05:04:59Z", "ms": 2171336698737.0361 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:00 on Wed 20 Oct to 16:35 on Thu 21 Oct.", "fact": "2038-10-20T19:59:45Z → 2038-10-21T20:35:03Z" }, { "step": "kaala", "text": "Moonrise is at 00:10 on the 20th and 01:05 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29440 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Valencia, 2038: Wednesday 20 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-20", "confidence": "determinate" } ], "quote": "In Valencia, Ahoyī Aṣṭamī 2038 falls on Wednesday 20 October. Aṣṭamī runs from 16:00 on Wed 20 Oct to 16:35 on Thu 21 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-10-24", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24817, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-10-23T15:12:02-04:00", "utc": "2038-10-23T19:12:02Z", "ms": 2171473921601.2737 }, "end": { "local": "2038-10-24T13:15:12-04:00", "utc": "2038-10-24T17:15:12Z", "ms": 2171553311739.3506 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-23T15:12:02-04:00", "utc": "2038-10-23T19:12:02Z", "ms": 2171473921601.2737 }, "end": { "local": "2038-10-24T13:15:12-04:00", "utc": "2038-10-24T17:15:12Z", "ms": 2171553311739.3506 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-10-23", "window": { "start": { "local": "2038-10-23T06:21:28-04:00", "utc": "2038-10-23T10:21:28Z", "ms": 2171442087707.6912 }, "end": { "local": "2038-10-23T06:21:28-04:00", "utc": "2038-10-23T10:21:28Z", "ms": 2171442087707.6912 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-10-24", "window": { "start": { "local": "2038-10-24T06:21:35-04:00", "utc": "2038-10-24T10:21:35Z", "ms": 2171528495200.9778 }, "end": { "local": "2038-10-24T06:21:35-04:00", "utc": "2038-10-24T10:21:35Z", "ms": 2171528495200.9778 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:12 on Sat 23 Oct to 13:15 on Sun 24 Oct.", "fact": "2038-10-23T19:12:02Z → 2038-10-24T17:15:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:21 on the 23rd and 06:22 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 23rd and is on the 24th.", "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 24817 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Valencia, 2038: Sunday 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": "2038-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-24", "confidence": "determinate" } ], "quote": "In Valencia, Ramā Ekādaśī 2038 falls on Sunday 24 October. Ekādaśī runs from 15:12 on Sat 23 Oct to 13:15 on Sun 24 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-10-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17726, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-10-24T13:15:12-04:00", "utc": "2038-10-24T17:15:12Z", "ms": 2171553311739.3506 }, "end": { "local": "2038-10-25T10:35:22-04:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-24T13:15:12-04:00", "utc": "2038-10-24T17:15:12Z", "ms": 2171553311739.3506 }, "end": { "local": "2038-10-25T10:35:22-04:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-24", "window": { "start": { "local": "2038-10-24T18:10:38-04:00", "utc": "2038-10-24T22:10:38Z", "ms": 2171571038203.084 }, "end": { "local": "2038-10-24T19:48:07-04:00", "utc": "2038-10-24T23:48:07Z", "ms": 2171576886885.05 } }, "covered_min": 97, "window_min": 97, "qualifies": true }, { "local_date": "2038-10-25", "window": { "start": { "local": "2038-10-25T18:10:16-04:00", "utc": "2038-10-25T22:10:16Z", "ms": 2171657416189.472 }, "end": { "local": "2038-10-25T19:47:49-04:00", "utc": "2038-10-25T23:47:49Z", "ms": 2171663268972.827 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 13:15 on Sun 24 Oct to 10:35 on Mon 25 Oct.", "fact": "2038-10-24T17:15:12Z → 2038-10-25T14:35:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:11–19:48 on the 24th, 18:10–19:48 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 97 of 97 minutes on the 24th and 0 of 98 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17726 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Valencia, 2038: Sunday 24 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-24", "confidence": "determinate" } ], "quote": "In Valencia, Govatsa Dvādaśī (Vasu Baras) 2038 falls on Sunday 24 October. Dvādaśī runs from 13:15 on Sun 24 Oct to 10:35 on Mon 25 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27294, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-10-25T10:35:22-04:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "end": { "local": "2038-10-26T07:21:19-04:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-25T10:35:22-04:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "end": { "local": "2038-10-26T07:21:19-04:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-25", "window": { "start": { "local": "2038-10-25T18:10:16-04:00", "utc": "2038-10-25T22:10:16Z", "ms": 2171657416189.472 }, "end": { "local": "2038-10-25T19:47:49-04:00", "utc": "2038-10-25T23:47:49Z", "ms": 2171663268972.827 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T18:09:55-04:00", "utc": "2038-10-26T22:09:55Z", "ms": 2171743795020.5266 }, "end": { "local": "2038-10-26T19:47:32-04:00", "utc": "2038-10-26T23:47:32Z", "ms": 2171749651877.2522 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:35 on Mon 25 Oct to 07:21 on Tue 26 Oct.", "fact": "2038-10-25T14:35:22Z → 2038-10-26T11:21:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:10–19:48 on the 25th, 18:10–19:48 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 98 of 98 minutes on the 25th and 0 of 98 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27294 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Valencia, 2038: Monday 25 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-25", "confidence": "determinate" } ], "quote": "In Valencia, Yama Dīpadāna 2038 falls on Monday 25 October. Trayodaśī runs from 10:35 on Mon 25 Oct to 07:21 on Tue 26 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/pradosha-vrata?on=2038-10-25", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27294, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-10-25T10:35:22-04:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "end": { "local": "2038-10-26T07:21:19-04:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-25T10:35:22-04:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "end": { "local": "2038-10-26T07:21:19-04:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-25", "window": { "start": { "local": "2038-10-25T18:10:16-04:00", "utc": "2038-10-25T22:10:16Z", "ms": 2171657416189.472 }, "end": { "local": "2038-10-25T19:47:49-04:00", "utc": "2038-10-25T23:47:49Z", "ms": 2171663268972.827 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T18:09:55-04:00", "utc": "2038-10-26T22:09:55Z", "ms": 2171743795020.5266 }, "end": { "local": "2038-10-26T19:47:32-04:00", "utc": "2038-10-26T23:47:32Z", "ms": 2171749651877.2522 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:35 on Mon 25 Oct to 07:21 on Tue 26 Oct.", "fact": "2038-10-25T14:35:22Z → 2038-10-26T11:21:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:10–19:48 on the 25th, 18:10–19:48 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 98 of 98 minutes on the 25th and 0 of 98 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 27294 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Monday 25 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-25", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Monday 25 October. Trayodaśī runs from 10:35 on Mon 25 Oct to 07:21 on Tue 26 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-10-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-26", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3567, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-10-26T07:21:19-04:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "end": { "local": "2038-10-27T03:43:26-04:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-26T07:21:19-04:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "end": { "local": "2038-10-27T03:43:26-04:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 } }, "kaala": "arunodaya", "days": [ { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T04:44:19-04:00", "utc": "2038-10-26T08:44:19Z", "ms": 2171695459281.2795 }, "end": { "local": "2038-10-26T06:21:52-04:00", "utc": "2038-10-26T10:21:52Z", "ms": 2171701312064.6345 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T04:44:25-04:00", "utc": "2038-10-27T08:44:25Z", "ms": 2171781864589.2422 }, "end": { "local": "2038-10-27T06:22:01-04:00", "utc": "2038-10-27T10:22:01Z", "ms": 2171787721445.9678 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:21 on Tue 26 Oct to 03:43 on Wed 27 Oct.", "fact": "2038-10-26T11:21:19Z → 2038-10-27T07:43:26Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:44–06:22 on the 26th, 04:44–06:22 on the 27th.", "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 98 minutes on the 26th and 0 of 98 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither dawn qualifies. The day the tithi falls on is taken.", "fact": "priority: purvaviddha → tithi-day · margin 3567 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Valencia, 2038: Tuesday 26 October.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "2038-10-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-26", "confidence": "boundary" } ], "quote": "In Valencia, Naraka Caturdaśī (Choti Diwali) 2038 falls on Tuesday 26 October. Caturdaśī runs from 07:21 on Tue 26 Oct to 03:43 on Wed 27 Oct, and reaches aruṇodaya on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/shivaratri?on=2038-10-26", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11008, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-10-26T07:21:19-04:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "end": { "local": "2038-10-27T03:43:26-04:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-26T07:21:19-04:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "end": { "local": "2038-10-27T03:43:26-04:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 } }, "kaala": "nishita", "days": [ { "local_date": "2038-10-25", "window": { "start": { "local": "2038-10-25T23:52:04-04:00", "utc": "2038-10-26T03:52:04Z", "ms": 2171677924127.0532 }, "end": { "local": "2038-10-26T00:40:04-04:00", "utc": "2038-10-26T04:40:04Z", "ms": 2171680804127.0532 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T23:51:58-04:00", "utc": "2038-10-27T03:51:58Z", "ms": 2171764318233.247 }, "end": { "local": "2038-10-27T00:39:58-04:00", "utc": "2038-10-27T04:39:58Z", "ms": 2171767198233.247 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:21 on Tue 26 Oct to 03:43 on Wed 27 Oct.", "fact": "2038-10-26T11:21:19Z → 2038-10-27T07:43:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:52–00:40 on the 25th, 23:52–00:40 on the 26th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11008 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Tuesday 26 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": "2038-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-26", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Tuesday 26 October. Caturdaśī runs from 07:21 on Tue 26 Oct to 03:43 on Wed 27 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-10-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14739, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2038-10-27T03:43:26-04:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "end": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-27T03:43:26-04:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "end": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T18:09:55-04:00", "utc": "2038-10-26T22:09:55Z", "ms": 2171743795020.5266 }, "end": { "local": "2038-10-26T19:47:32-04:00", "utc": "2038-10-26T23:47:32Z", "ms": 2171749651877.2522 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T18:09:35-04:00", "utc": "2038-10-27T22:09:35Z", "ms": 2171830174709.6719 }, "end": { "local": "2038-10-27T19:47:16-04:00", "utc": "2038-10-27T23:47:16Z", "ms": 2171836035610.342 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 03:43 on Wed 27 Oct to 23:53 on Wed 27 Oct.", "fact": "2038-10-27T07:43:26Z → 2038-10-28T03:52:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:10–19:48 on the 26th, 18:10–19:47 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 0 of 98 minutes on the 26th and 98 of 98 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14739 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Valencia, 2038: Wednesday 27 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-27", "confidence": "determinate" } ], "quote": "In Valencia, Lakṣmī Pūjā (Diwali) 2038 falls on Wednesday 27 October. Amāvasyā runs from 03:43 on Wed 27 Oct to 23:53 on Wed 27 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-27", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 62, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2038-10-27T03:43:26-04:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "end": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-27T03:43:26-04:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "end": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 } }, "kaala": "nishita", "days": [ { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T23:51:58-04:00", "utc": "2038-10-27T03:51:58Z", "ms": 2171764318233.247 }, "end": { "local": "2038-10-27T00:39:58-04:00", "utc": "2038-10-27T04:39:58Z", "ms": 2171767198233.247 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T23:51:53-04:00", "utc": "2038-10-28T03:51:53Z", "ms": 2171850713087.185 }, "end": { "local": "2038-10-28T00:39:53-04:00", "utc": "2038-10-28T04:39:53Z", "ms": 2171853593087.185 } }, "covered_min": 1, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 03:43 on Wed 27 Oct to 23:53 on Wed 27 Oct.", "fact": "2038-10-27T07:43:26Z → 2038-10-28T03:52:55Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:52–00:40 on the 26th, 23:52–00:40 on the 27th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 0 of 48 minutes on the 26th and 1 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: unstated → only-day · margin 62 s < 300 s" }, { "step": "ruling", "text": "Kālī Pūjā, Valencia, 2038: Wednesday 27 October.", "fact": "confidence: boundary (margin)" } ], "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": "2038-10-27", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-27", "confidence": "boundary" } ], "quote": "In Valencia, Kālī Pūjā 2038 falls on Wednesday 27 October. Amāvasyā runs from 03:43 on Wed 27 Oct to 23:53 on Wed 27 Oct and covers 1 of 48 minutes of niśītha that night. It is 1 min 02 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26488, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-28T20:01:11-04:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-28T20:01:11-04:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T11:51:48-04:00", "utc": "2038-10-27T15:51:48Z", "ms": 2171807508077.8198 }, "end": { "local": "2038-10-27T12:39:48-04:00", "utc": "2038-10-27T16:39:48Z", "ms": 2171810388077.8198 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T11:51:43-04:00", "utc": "2038-10-28T15:51:43Z", "ms": 2171893903366.8765 }, "end": { "local": "2038-10-28T12:39:43-04:00", "utc": "2038-10-28T16:39:43Z", "ms": 2171896783366.8765 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:53 on Wed 27 Oct to 20:01 on Thu 28 Oct.", "fact": "2038-10-28T03:52:55Z → 2038-10-29T00:01:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 27th, 11:52–12:40 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26488 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Valencia, 2038: Thursday 28 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govardhana-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-28", "confidence": "determinate" } ], "quote": "In Valencia, Govardhana Pūjā 2038 falls on Thursday 28 October. Pratipadā runs from 23:53 on Wed 27 Oct to 20:01 on Thu 28 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 851, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-28T20:01:11-04:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-28T20:01:11-04:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T18:09:35-04:00", "utc": "2038-10-27T22:09:35Z", "ms": 2171830174709.6719 }, "end": { "local": "2038-10-27T19:47:16-04:00", "utc": "2038-10-27T23:47:16Z", "ms": 2171836035610.342 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T18:09:15-04:00", "utc": "2038-10-28T22:09:15Z", "ms": 2171916555269.055 }, "end": { "local": "2038-10-28T19:47:00-04:00", "utc": "2038-10-28T23:47:00Z", "ms": 2171922420182.8262 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:53 on Wed 27 Oct to 20:01 on Thu 28 Oct.", "fact": "2038-10-28T03:52:55Z → 2038-10-29T00:01:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:10–19:47 on the 27th, 18:09–19:47 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 0 of 98 minutes on the 27th and 98 of 98 on the 28th.", "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 851 s" }, { "step": "ruling", "text": "Bali Pūjā, Valencia, 2038: Thursday 28 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-28", "confidence": "determinate" } ], "quote": "In Valencia, Bali Pūjā 2038 falls on Thursday 28 October. Pratipadā runs from 23:53 on Wed 27 Oct to 20:01 on Thu 28 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23357, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-28T20:01:11-04:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-27T23:52:55-04:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-28T20:01:11-04:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 } }, "kaala": "purvahna", "days": [ { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T06:22:11-04:00", "utc": "2038-10-28T10:22:11Z", "ms": 2171874131464.6982 }, "end": { "local": "2038-10-28T10:17:53-04:00", "utc": "2038-10-28T14:17:53Z", "ms": 2171888272732.8171 } }, "covered_min": 236, "window_min": 236, "qualifies": true }, { "local_date": "2038-10-29", "window": { "start": { "local": "2038-10-29T06:22:22-04:00", "utc": "2038-10-29T10:22:22Z", "ms": 2171960542122.339 }, "end": { "local": "2038-10-29T10:17:54-04:00", "utc": "2038-10-29T14:17:54Z", "ms": 2171974673651.5718 } }, "covered_min": 0, "window_min": 236, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:53 on Wed 27 Oct to 20:01 on Thu 28 Oct.", "fact": "2038-10-28T03:52:55Z → 2038-10-29T00:01:11Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:22–10:18 on the 28th, 06:22–10:18 on the 29th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 236 of 236 minutes on the 28th and 0 of 236 on the 29th.", "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 23357 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Valencia, 2038: Thursday 28 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-28", "confidence": "determinate" } ], "quote": "In Valencia, Dyūta Pratipad 2038 falls on Thursday 28 October. Pratipadā runs from 23:53 on Wed 27 Oct to 20:01 on Thu 28 Oct and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13184, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2038-10-28T20:01:11-04:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "end": { "local": "2038-10-29T16:19:23-04:00", "utc": "2038-10-29T20:19:23Z", "ms": 2171996363342.4727 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-28T20:01:11-04:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "end": { "local": "2038-10-29T16:19:23-04:00", "utc": "2038-10-29T20:19:23Z", "ms": 2171996363342.4727 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T11:51:43-04:00", "utc": "2038-10-28T15:51:43Z", "ms": 2171893903366.8765 }, "end": { "local": "2038-10-28T12:39:43-04:00", "utc": "2038-10-28T16:39:43Z", "ms": 2171896783366.8765 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-29", "window": { "start": { "local": "2038-10-29T11:51:39-04:00", "utc": "2038-10-29T15:51:39Z", "ms": 2171980299416.1882 }, "end": { "local": "2038-10-29T12:39:39-04:00", "utc": "2038-10-29T16:39:39Z", "ms": 2171983179416.1882 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 20:01 on Thu 28 Oct to 16:19 on Fri 29 Oct.", "fact": "2038-10-29T00:01:11Z → 2038-10-29T20:19:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 28th, 11:52–12:40 on the 29th.", "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 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13184 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Valencia, 2038: Friday 29 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dvitiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-29", "confidence": "determinate" } ], "quote": "In Valencia, Yama Dvitīyā (Bhai Dooj) 2038 falls on Friday 29 October. Dvitīyā runs from 20:01 on Thu 28 Oct to 16:19 on Fri 29 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1101, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-30T12:57:57-04:00", "utc": "2038-10-30T16:57:57Z", "ms": 2172070677432.4795 }, "end": { "local": "2038-10-31T10:06:06-04:00", "utc": "2038-10-31T14:06:06Z", "ms": 2172146766142.7761 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-30T12:57:57-04:00", "utc": "2038-10-30T16:57:57Z", "ms": 2172070677432.4795 }, "end": { "local": "2038-10-31T10:06:06-04:00", "utc": "2038-10-31T14:06:06Z", "ms": 2172146766142.7761 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-30", "window": { "start": { "local": "2038-10-30T11:51:36-04:00", "utc": "2038-10-30T15:51:36Z", "ms": 2172066696231.6855 }, "end": { "local": "2038-10-30T12:39:36-04:00", "utc": "2038-10-30T16:39:36Z", "ms": 2172069576231.6855 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-31", "window": { "start": { "local": "2038-10-31T11:51:34-04:00", "utc": "2038-10-31T15:51:34Z", "ms": 2172153093819.3477 }, "end": { "local": "2038-10-31T12:39:34-04:00", "utc": "2038-10-31T16:39:34Z", "ms": 2172155973819.3477 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:58 on Sat 30 Oct to 10:06 on Sun 31 Oct.", "fact": "2038-10-30T16:57:57Z → 2038-10-31T14:06:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 30th, 11:52–12:40 on the 31st.", "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 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 1101 s" }, { "step": "ruling", "text": "Nāga Caturthī, Valencia, 2038: Sunday 31 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-30", "confidence": "determinate" } ], "quote": "In Valencia, Nāga Caturthī 2038 falls on Sunday 31 October. Caturthī runs from 12:58 on Sat 30 Oct to 10:06 on Sun 31 Oct, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-10-31", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1101, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-30T12:57:57-04:00", "utc": "2038-10-30T16:57:57Z", "ms": 2172070677432.4795 }, "end": { "local": "2038-10-31T10:06:06-04:00", "utc": "2038-10-31T14:06:06Z", "ms": 2172146766142.7761 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-30T12:57:57-04:00", "utc": "2038-10-30T16:57:57Z", "ms": 2172070677432.4795 }, "end": { "local": "2038-10-31T10:06:06-04:00", "utc": "2038-10-31T14:06:06Z", "ms": 2172146766142.7761 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-30", "window": { "start": { "local": "2038-10-30T11:51:36-04:00", "utc": "2038-10-30T15:51:36Z", "ms": 2172066696231.6855 }, "end": { "local": "2038-10-30T12:39:36-04:00", "utc": "2038-10-30T16:39:36Z", "ms": 2172069576231.6855 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-31", "window": { "start": { "local": "2038-10-31T11:51:34-04:00", "utc": "2038-10-31T15:51:34Z", "ms": 2172153093819.3477 }, "end": { "local": "2038-10-31T12:39:34-04:00", "utc": "2038-10-31T16:39:34Z", "ms": 2172155973819.3477 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:58 on Sat 30 Oct to 10:06 on Sun 31 Oct.", "fact": "2038-10-30T16:57:57Z → 2038-10-31T14:06:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 30th, 11:52–12:40 on the 31st.", "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 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: unstated → second-day · margin 1101 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Sunday 31 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": "2038-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-30", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Sunday 31 October. Caturthī runs from 12:58 on Sat 30 Oct to 10:06 on Sun 31 Oct, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-10-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14414, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-11-01T07:51:18-04:00", "utc": "2038-11-01T11:51:18Z", "ms": 2172225078373.4788 }, "end": { "local": "2038-11-02T06:18:46-04:00", "utc": "2038-11-02T10:18:46Z", "ms": 2172305926496.8455 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-01T07:51:18-04:00", "utc": "2038-11-01T11:51:18Z", "ms": 2172225078373.4788 }, "end": { "local": "2038-11-02T06:18:46-04:00", "utc": "2038-11-02T10:18:46Z", "ms": 2172305926496.8455 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-01", "window": { "start": { "local": "2038-11-01T11:51:32-04:00", "utc": "2038-11-01T15:51:32Z", "ms": 2172239492185.584 }, "end": { "local": "2038-11-01T12:39:32-04:00", "utc": "2038-11-01T16:39:32Z", "ms": 2172242372185.584 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-11-02", "window": { "start": { "local": "2038-11-02T11:51:31-04:00", "utc": "2038-11-02T15:51:31Z", "ms": 2172325891337.374 }, "end": { "local": "2038-11-02T12:39:31-04:00", "utc": "2038-11-02T16:39:31Z", "ms": 2172328771337.374 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 07:51 on Mon 1 Nov to 06:19 on Tue 2 Nov.", "fact": "2038-11-01T11:51:18Z → 2038-11-02T10:18:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 1st, 11:52–12:40 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "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 14414 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Valencia, 2038: Monday 1 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": "2038-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-01", "confidence": "determinate" } ], "quote": "In Valencia, Sūrya Ṣaṣṭhī (Chhath) 2038 falls on Monday 1 November. Ṣaṣṭhī runs from 07:51 on Mon 1 Nov to 06:19 on Tue 2 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22832, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-11-03T05:30:59-04:00", "utc": "2038-11-03T09:30:59Z", "ms": 2172389459068.5034 }, "end": { "local": "2038-11-04T05:27:28-04:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-03T05:30:59-04:00", "utc": "2038-11-03T09:30:59Z", "ms": 2172389459068.5034 }, "end": { "local": "2038-11-04T05:27:28-04:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-03", "window": { "start": { "local": "2038-11-03T11:51:31-04:00", "utc": "2038-11-03T15:51:31Z", "ms": 2172412291282.1836 }, "end": { "local": "2038-11-03T12:39:31-04:00", "utc": "2038-11-03T16:39:31Z", "ms": 2172415171282.1836 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-11-04", "window": { "start": { "local": "2038-11-04T11:51:32-04:00", "utc": "2038-11-04T15:51:32Z", "ms": 2172498692027.7605 }, "end": { "local": "2038-11-04T12:39:32-04:00", "utc": "2038-11-04T16:39:32Z", "ms": 2172501572027.7605 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:31 on Wed 3 Nov to 05:27 on Thu 4 Nov.", "fact": "2038-11-03T09:30:59Z → 2038-11-04T09:27:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 3rd, 11:52–12:40 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22832 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Valencia, 2038: Wednesday 3 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": "2038-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-03", "confidence": "determinate" } ], "quote": "In Valencia, Gopāṣṭamī 2038 falls on Wednesday 3 November. Aṣṭamī runs from 05:31 on Wed 3 Nov to 05:27 on Thu 4 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1136, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2038-11-04T05:27:28-04:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "end": { "local": "2038-11-05T06:04:58-04:00", "utc": "2038-11-05T10:04:58Z", "ms": 2172564298233.434 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-04T05:27:28-04:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "end": { "local": "2038-11-05T06:04:58-04:00", "utc": "2038-11-05T10:04:58Z", "ms": 2172564298233.434 } }, "kaala": "purvahna", "days": [ { "local_date": "2038-11-04", "window": { "start": { "local": "2038-11-04T06:23:40-04:00", "utc": "2038-11-04T10:23:40Z", "ms": 2172479019528.3284 }, "end": { "local": "2038-11-04T10:18:15-04:00", "utc": "2038-11-04T14:18:15Z", "ms": 2172493094527.9497 } }, "covered_min": 235, "window_min": 235, "qualifies": true }, { "local_date": "2038-11-05", "window": { "start": { "local": "2038-11-05T06:23:55-04:00", "utc": "2038-11-05T10:23:55Z", "ms": 2172565434685.8855 }, "end": { "local": "2038-11-05T10:18:21-04:00", "utc": "2038-11-05T14:18:21Z", "ms": 2172579500616.5535 } }, "covered_min": 0, "window_min": 234, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:27 on Thu 4 Nov to 06:05 on Fri 5 Nov.", "fact": "2038-11-04T09:27:28Z → 2038-11-05T10:04:58Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:24–10:18 on the 4th, 06:24–10:18 on the 5th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 235 of 235 minutes on the 4th and 0 of 234 on the 5th.", "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 1136 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Valencia, 2038: Thursday 4 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": "2038-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-04", "confidence": "determinate" } ], "quote": "In Valencia, Akṣaya Navamī (Amla Navami) 2038 falls on Thursday 4 November. Navamī runs from 05:27 on Thu 4 Nov to 06:05 on Fri 5 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20795, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2038-11-04T05:27:28-04:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "end": { "local": "2038-11-05T06:04:58-04:00", "utc": "2038-11-05T10:04:58Z", "ms": 2172564298233.434 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-04T05:27:28-04:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "end": { "local": "2038-11-05T06:04:58-04:00", "utc": "2038-11-05T10:04:58Z", "ms": 2172564298233.434 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-04", "window": { "start": { "local": "2038-11-04T11:51:32-04:00", "utc": "2038-11-04T15:51:32Z", "ms": 2172498692027.7605 }, "end": { "local": "2038-11-04T12:39:32-04:00", "utc": "2038-11-04T16:39:32Z", "ms": 2172501572027.7605 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-11-05", "window": { "start": { "local": "2038-11-05T11:51:34-04:00", "utc": "2038-11-05T15:51:34Z", "ms": 2172585093581.8877 }, "end": { "local": "2038-11-05T12:39:34-04:00", "utc": "2038-11-05T16:39:34Z", "ms": 2172587973581.8877 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:27 on Thu 4 Nov to 06:05 on Fri 5 Nov.", "fact": "2038-11-04T09:27:28Z → 2038-11-05T10:04:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 4th, 11:52–12:40 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20795 s" }, { "step": "ruling", "text": "Durgā Navamī, Valencia, 2038: Thursday 4 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": "2038-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-04", "confidence": "determinate" } ], "quote": "In Valencia, Durgā Navamī 2038 falls on Thursday 4 November. Navamī runs from 05:27 on Thu 4 Nov to 06:05 on Fri 5 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-11-07", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3234, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-11-06T07:18:05-04:00", "utc": "2038-11-06T11:18:05Z", "ms": 2172655084857.5796 }, "end": { "local": "2038-11-07T09:00:07-04:00", "utc": "2038-11-07T13:00:07Z", "ms": 2172747607452.2095 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-06T07:18:05-04:00", "utc": "2038-11-06T11:18:05Z", "ms": 2172655084857.5796 }, "end": { "local": "2038-11-07T09:00:07-04:00", "utc": "2038-11-07T13:00:07Z", "ms": 2172747607452.2095 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-11-06", "window": { "start": { "local": "2038-11-06T06:24:10-04:00", "utc": "2038-11-06T10:24:10Z", "ms": 2172651850493.4595 }, "end": { "local": "2038-11-06T06:24:10-04:00", "utc": "2038-11-06T10:24:10Z", "ms": 2172651850493.4595 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-11-07", "window": { "start": { "local": "2038-11-07T06:24:27-04:00", "utc": "2038-11-07T10:24:27Z", "ms": 2172738266952.7383 }, "end": { "local": "2038-11-07T06:24:27-04:00", "utc": "2038-11-07T10:24:27Z", "ms": 2172738266952.7383 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:18 on Sat 6 Nov to 09:00 on Sun 7 Nov.", "fact": "2038-11-06T11:18:05Z → 2038-11-07T13:00:07Z" }, { "step": "kaala", "text": "Sunrise is at 06:24 on the 6th and 06:24 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3234 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Valencia, 2038: Sunday 7 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-07", "confidence": "determinate" } ], "quote": "In Valencia, Prabodhinī Ekādaśī 2038 falls on Sunday 7 November. Ekādaśī runs from 07:18 on Sat 6 Nov to 09:00 on Sun 7 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-11-08", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16972, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-11-08T11:04:09-04:00", "utc": "2038-11-08T15:04:09Z", "ms": 2172841449432.8901 }, "end": { "local": "2038-11-09T13:23:43-04:00", "utc": "2038-11-09T17:23:43Z", "ms": 2172936222614.3342 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-08T11:04:09-04:00", "utc": "2038-11-08T15:04:09Z", "ms": 2172841449432.8901 }, "end": { "local": "2038-11-09T13:23:43-04:00", "utc": "2038-11-09T17:23:43Z", "ms": 2172936222614.3342 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-11-08", "window": { "start": { "local": "2038-11-08T18:06:42-04:00", "utc": "2038-11-08T22:06:42Z", "ms": 2172866802274.4285 }, "end": { "local": "2038-11-08T19:45:09-04:00", "utc": "2038-11-08T23:45:09Z", "ms": 2172872708881.9102 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "2038-11-09", "window": { "start": { "local": "2038-11-09T18:06:34-04:00", "utc": "2038-11-09T22:06:34Z", "ms": 2172953194229.0432 }, "end": { "local": "2038-11-09T19:45:04-04:00", "utc": "2038-11-09T23:45:04Z", "ms": 2172959104365.0989 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:04 on Mon 8 Nov to 13:24 on Tue 9 Nov.", "fact": "2038-11-08T15:04:09Z → 2038-11-09T17:23:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:45 on the 8th, 18:07–19:45 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 98 of 98 minutes on the 8th and 0 of 99 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16972 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Monday 8 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-08", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Monday 8 November. Trayodaśī runs from 11:04 on Mon 8 Nov to 13:24 on Tue 9 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-11-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19496, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-11-10T15:53:06-04:00", "utc": "2038-11-10T19:53:06Z", "ms": 2173031585669.6252 }, "end": { "local": "2038-11-11T18:27:15-04:00", "utc": "2038-11-11T22:27:15Z", "ms": 2173127234548.3743 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-10T15:53:06-04:00", "utc": "2038-11-10T19:53:06Z", "ms": 2173031585669.6252 }, "end": { "local": "2038-11-11T18:27:15-04:00", "utc": "2038-11-11T22:27:15Z", "ms": 2173127234548.3743 } }, "kaala": "nishita", "days": [ { "local_date": "2038-11-10", "window": { "start": { "local": "2038-11-10T23:52:03-04:00", "utc": "2038-11-11T03:52:03Z", "ms": 2173060323267.2627 }, "end": { "local": "2038-11-11T00:40:03-04:00", "utc": "2038-11-11T04:40:03Z", "ms": 2173063203267.2627 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-11-11", "window": { "start": { "local": "2038-11-11T23:52:10-04:00", "utc": "2038-11-12T03:52:10Z", "ms": 2173146730140.7197 }, "end": { "local": "2038-11-12T00:40:10-04:00", "utc": "2038-11-12T04:40:10Z", "ms": 2173149610140.7197 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:53 on Wed 10 Nov to 18:27 on Thu 11 Nov.", "fact": "2038-11-10T19:53:06Z → 2038-11-11T22:27:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:52–00:40 on the 10th, 23:52–00:40 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19496 s" }, { "step": "ruling", "text": "Rāsayātrā, Valencia, 2038: Wednesday 10 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": "2038-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-10", "confidence": "determinate" } ], "quote": "In Valencia, Rāsayātrā 2038 falls on Wednesday 10 November. Pūrṇimā runs from 15:53 on Wed 10 Nov to 18:27 on Thu 11 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11592, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-11-10T15:53:06-04:00", "utc": "2038-11-10T19:53:06Z", "ms": 2173031585669.6252 }, "end": { "local": "2038-11-11T18:27:15-04:00", "utc": "2038-11-11T22:27:15Z", "ms": 2173127234548.3743 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-10T15:53:06-04:00", "utc": "2038-11-10T19:53:06Z", "ms": 2173031585669.6252 }, "end": { "local": "2038-11-11T18:27:15-04:00", "utc": "2038-11-11T22:27:15Z", "ms": 2173127234548.3743 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-10", "window": { "start": { "local": "2038-11-10T11:51:54-04:00", "utc": "2038-11-10T15:51:54Z", "ms": 2173017113731.6577 }, "end": { "local": "2038-11-10T12:39:54-04:00", "utc": "2038-11-10T16:39:54Z", "ms": 2173019993731.6577 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-11", "window": { "start": { "local": "2038-11-11T11:52:00-04:00", "utc": "2038-11-11T15:52:00Z", "ms": 2173103520279.9277 }, "end": { "local": "2038-11-11T12:40:00-04:00", "utc": "2038-11-11T16:40:00Z", "ms": 2173106400279.9277 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:53 on Wed 10 Nov to 18:27 on Thu 11 Nov.", "fact": "2038-11-10T19:53:06Z → 2038-11-11T22:27:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 10th, 11:52–12:40 on the 11th.", "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 10th and 48 of 48 on the 11th.", "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 11592 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Valencia, 2038: Thursday 11 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": "2038-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-11", "confidence": "determinate" } ], "quote": "In Valencia, Kārtikī Pūrṇimā 2038 falls on Thursday 11 November. Pūrṇimā runs from 15:53 on Wed 10 Nov to 18:27 on Thu 11 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-11-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19354, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-11-15T01:45:55-04:00", "utc": "2038-11-15T05:45:55Z", "ms": 2173412754829.9617 }, "end": { "local": "2038-11-16T03:42:52-04:00", "utc": "2038-11-16T07:42:52Z", "ms": 2173506172167.4075 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-15T01:45:55-04:00", "utc": "2038-11-15T05:45:55Z", "ms": 2173412754829.9617 }, "end": { "local": "2038-11-16T03:42:52-04:00", "utc": "2038-11-16T07:42:52Z", "ms": 2173506172167.4075 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-11-14", "window": { "start": { "local": "2038-11-14T20:23:21-04:00", "utc": "2038-11-15T00:23:21Z", "ms": 2173393400970.359 }, "end": { "local": "2038-11-14T20:23:21-04:00", "utc": "2038-11-15T00:23:21Z", "ms": 2173393400970.359 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-11-15", "window": { "start": { "local": "2038-11-15T21:13:03-04:00", "utc": "2038-11-16T01:13:03Z", "ms": 2173482782797.0503 }, "end": { "local": "2038-11-15T21:13:03-04:00", "utc": "2038-11-16T01:13:03Z", "ms": 2173482782797.0503 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:46 on Mon 15 Nov to 03:43 on Tue 16 Nov.", "fact": "2038-11-15T05:45:55Z → 2038-11-16T07:42:52Z" }, { "step": "kaala", "text": "Moonrise is at 20:23 on the 14th and 21:13 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19354 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Monday 15 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": "2038-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-15", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Monday 15 November. Caturthī runs from 01:46 on Mon 15 Nov to 03:43 on Tue 16 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-11-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-11-22", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14373, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-11-22T02:30:18-04:00", "utc": "2038-11-22T06:30:18Z", "ms": 2174020217907.8594 }, "end": { "local": "2038-11-22T23:51:37-04:00", "utc": "2038-11-23T03:51:37Z", "ms": 2174097096800.7112 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-22T02:30:18-04:00", "utc": "2038-11-22T06:30:18Z", "ms": 2174020217907.8594 }, "end": { "local": "2038-11-22T23:51:37-04:00", "utc": "2038-11-23T03:51:37Z", "ms": 2174097096800.7112 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-11-22", "window": { "start": { "local": "2038-11-22T06:29:51-04:00", "utc": "2038-11-22T10:29:51Z", "ms": 2174034590769.7588 }, "end": { "local": "2038-11-22T06:29:51-04:00", "utc": "2038-11-22T10:29:51Z", "ms": 2174034590769.7588 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-11-23", "window": { "start": { "local": "2038-11-23T06:30:17-04:00", "utc": "2038-11-23T10:30:17Z", "ms": 2174121017164.7556 }, "end": { "local": "2038-11-23T06:30:17-04:00", "utc": "2038-11-23T10:30:17Z", "ms": 2174121017164.7556 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:30 on Mon 22 Nov to 23:52 on Mon 22 Nov.", "fact": "2038-11-22T06:30:18Z → 2038-11-23T03:51:37Z" }, { "step": "kaala", "text": "Sunrise is at 06:30 on the 22nd and 06:30 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14373 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Valencia, 2038: Monday 22 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-22", "confidence": "determinate" } ], "quote": "In Valencia, Utpannā Ekādaśī 2038 falls on Monday 22 November. Ekādaśī runs from 02:30 on Mon 22 Nov to 23:52 on Mon 22 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-11-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-11-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-23", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3292, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-11-23T20:42:26-04:00", "utc": "2038-11-24T00:42:26Z", "ms": 2174172146094.513 }, "end": { "local": "2038-11-24T17:11:49-04:00", "utc": "2038-11-24T21:11:49Z", "ms": 2174245908640.526 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-23T20:42:26-04:00", "utc": "2038-11-24T00:42:26Z", "ms": 2174172146094.513 }, "end": { "local": "2038-11-24T17:11:49-04:00", "utc": "2038-11-24T21:11:49Z", "ms": 2174245908640.526 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-11-23", "window": { "start": { "local": "2038-11-23T18:06:33-04:00", "utc": "2038-11-23T22:06:33Z", "ms": 2174162793087.1619 }, "end": { "local": "2038-11-23T19:45:47-04:00", "utc": "2038-11-23T23:45:47Z", "ms": 2174168746552.9482 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "2038-11-24", "window": { "start": { "local": "2038-11-24T18:06:41-04:00", "utc": "2038-11-24T22:06:41Z", "ms": 2174249201082.0195 }, "end": { "local": "2038-11-24T19:45:57-04:00", "utc": "2038-11-24T23:45:57Z", "ms": 2174255157136.892 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:42 on Tue 23 Nov to 17:12 on Wed 24 Nov.", "fact": "2038-11-24T00:42:26Z → 2038-11-24T21:11:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:46 on the 23rd, 18:07–19:46 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 99 minutes on the 23rd and 0 of 99 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 3292 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Tuesday 23 November.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-23", "confidence": "boundary" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Tuesday 23 November. Trayodaśī runs from 20:42 on Tue 23 Nov to 17:12 on Wed 24 Nov, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-11-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-11-24", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24188, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-11-24T17:11:49-04:00", "utc": "2038-11-24T21:11:49Z", "ms": 2174245908640.526 }, "end": { "local": "2038-11-25T13:29:46-04:00", "utc": "2038-11-25T17:29:46Z", "ms": 2174318985549.7139 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-24T17:11:49-04:00", "utc": "2038-11-24T21:11:49Z", "ms": 2174245908640.526 }, "end": { "local": "2038-11-25T13:29:46-04:00", "utc": "2038-11-25T17:29:46Z", "ms": 2174318985549.7139 } }, "kaala": "nishita", "days": [ { "local_date": "2038-11-24", "window": { "start": { "local": "2038-11-24T23:54:56-04:00", "utc": "2038-11-25T03:54:56Z", "ms": 2174270096287.7917 }, "end": { "local": "2038-11-25T00:42:56-04:00", "utc": "2038-11-25T04:42:56Z", "ms": 2174272976287.7917 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-11-25", "window": { "start": { "local": "2038-11-25T23:55:15-04:00", "utc": "2038-11-26T03:55:15Z", "ms": 2174356514753.651 }, "end": { "local": "2038-11-26T00:43:15-04:00", "utc": "2038-11-26T04:43:15Z", "ms": 2174359394753.651 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:12 on Wed 24 Nov to 13:30 on Thu 25 Nov.", "fact": "2038-11-24T21:11:49Z → 2038-11-25T17:29:46Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:55–00:43 on the 24th, 23:55–00:43 on the 25th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24188 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Wednesday 24 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": "2038-11-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-24", "confidence": "determinate" } ], "quote": "In Valencia, Śivarātri 2038 falls on Wednesday 24 November. Caturdaśī runs from 17:12 on Wed 24 Nov to 13:30 on Thu 25 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-11-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-11-29", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33871, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-11-29T00:15:38-04:00", "utc": "2038-11-29T04:15:38Z", "ms": 2174616938041.3376 }, "end": { "local": "2038-11-29T22:08:52-04:00", "utc": "2038-11-30T02:08:52Z", "ms": 2174695731604.6328 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-29T00:15:38-04:00", "utc": "2038-11-29T04:15:38Z", "ms": 2174616938041.3376 }, "end": { "local": "2038-11-29T22:08:52-04:00", "utc": "2038-11-30T02:08:52Z", "ms": 2174695731604.6328 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-28", "window": { "start": { "local": "2038-11-28T11:56:00-04:00", "utc": "2038-11-28T15:56:00Z", "ms": 2174572559943.1592 }, "end": { "local": "2038-11-28T12:44:00-04:00", "utc": "2038-11-28T16:44:00Z", "ms": 2174575439943.1592 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-29", "window": { "start": { "local": "2038-11-29T11:56:21-04:00", "utc": "2038-11-29T15:56:21Z", "ms": 2174658981058.147 }, "end": { "local": "2038-11-29T12:44:21-04:00", "utc": "2038-11-29T16:44:21Z", "ms": 2174661861058.147 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:16 on Mon 29 Nov to 22:09 on Mon 29 Nov.", "fact": "2038-11-29T04:15:38Z → 2038-11-30T02:08:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 28th, 11:56–12:44 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33871 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Monday 29 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": "2038-11-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-29", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Monday 29 November. Caturthī runs from 00:16 on Mon 29 Nov to 22:09 on Mon 29 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-11-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28867, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-11-29T22:08:52-04:00", "utc": "2038-11-30T02:08:52Z", "ms": 2174695731604.6328 }, "end": { "local": "2038-11-30T20:45:50-04:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-29T22:08:52-04:00", "utc": "2038-11-30T02:08:52Z", "ms": 2174695731604.6328 }, "end": { "local": "2038-11-30T20:45:50-04:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-29", "window": { "start": { "local": "2038-11-29T11:56:21-04:00", "utc": "2038-11-29T15:56:21Z", "ms": 2174658981058.147 }, "end": { "local": "2038-11-29T12:44:21-04:00", "utc": "2038-11-29T16:44:21Z", "ms": 2174661861058.147 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-30", "window": { "start": { "local": "2038-11-30T11:56:43-04:00", "utc": "2038-11-30T15:56:43Z", "ms": 2174745402836.544 }, "end": { "local": "2038-11-30T12:44:43-04:00", "utc": "2038-11-30T16:44:43Z", "ms": 2174748282836.544 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:09 on Mon 29 Nov to 20:46 on Tue 30 Nov.", "fact": "2038-11-30T02:08:52Z → 2038-12-01T00:45:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 29th, 11:57–12:45 on the 30th.", "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 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28867 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Valencia, 2038: Tuesday 30 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami-margashirsha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (2nd) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-30", "confidence": "determinate" } ], "quote": "In Valencia, Nāga Pañcamī (Mārgaśīrṣa) 2038 falls on Tuesday 30 November. Pañcamī runs from 22:09 on Mon 29 Nov to 20:46 on Tue 30 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26712, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-11-30T20:45:50-04:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "end": { "local": "2038-12-01T20:10:17-04:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-30T20:45:50-04:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "end": { "local": "2038-12-01T20:10:17-04:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-30", "window": { "start": { "local": "2038-11-30T11:56:43-04:00", "utc": "2038-11-30T15:56:43Z", "ms": 2174745402836.544 }, "end": { "local": "2038-11-30T12:44:43-04:00", "utc": "2038-11-30T16:44:43Z", "ms": 2174748282836.544 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-12-01", "window": { "start": { "local": "2038-12-01T11:57:05-04:00", "utc": "2038-12-01T15:57:05Z", "ms": 2174831825255.2886 }, "end": { "local": "2038-12-01T12:45:05-04:00", "utc": "2038-12-01T16:45:05Z", "ms": 2174834705255.2886 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:46 on Tue 30 Nov to 20:10 on Wed 1 Dec.", "fact": "2038-12-01T00:45:50Z → 2038-12-02T00:10:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 30th, 11:57–12:45 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26712 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Valencia, 2038: Wednesday 1 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": "2038-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-01", "confidence": "determinate" } ], "quote": "In Valencia, Campā Ṣaṣṭhī 2038 falls on Wednesday 1 December. Ṣaṣṭhī runs from 20:46 on Tue 30 Nov to 20:10 on Wed 1 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26712, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-11-30T20:45:50-04:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "end": { "local": "2038-12-01T20:10:17-04:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-30T20:45:50-04:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "end": { "local": "2038-12-01T20:10:17-04:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-30", "window": { "start": { "local": "2038-11-30T11:56:43-04:00", "utc": "2038-11-30T15:56:43Z", "ms": 2174745402836.544 }, "end": { "local": "2038-11-30T12:44:43-04:00", "utc": "2038-11-30T16:44:43Z", "ms": 2174748282836.544 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-12-01", "window": { "start": { "local": "2038-12-01T11:57:05-04:00", "utc": "2038-12-01T15:57:05Z", "ms": 2174831825255.2886 }, "end": { "local": "2038-12-01T12:45:05-04:00", "utc": "2038-12-01T16:45:05Z", "ms": 2174834705255.2886 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:46 on Tue 30 Nov to 20:10 on Wed 1 Dec.", "fact": "2038-12-01T00:45:50Z → 2038-12-02T00:10:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 30th, 11:57–12:45 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26712 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Valencia, 2038: Wednesday 1 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": "2038-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-01", "confidence": "determinate" } ], "quote": "In Valencia, Skanda Ṣaṣṭhī 2038 falls on Wednesday 1 December. Ṣaṣṭhī runs from 20:46 on Tue 30 Nov to 20:10 on Wed 1 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26712, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-12-01T20:10:17-04:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 }, "end": { "local": "2038-12-02T20:22:46-04:00", "utc": "2038-12-03T00:22:46Z", "ms": 2174948566124.873 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-01T20:10:17-04:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 }, "end": { "local": "2038-12-02T20:22:46-04:00", "utc": "2038-12-03T00:22:46Z", "ms": 2174948566124.873 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-12-01", "window": { "start": { "local": "2038-12-01T11:57:05-04:00", "utc": "2038-12-01T15:57:05Z", "ms": 2174831825255.2886 }, "end": { "local": "2038-12-01T12:45:05-04:00", "utc": "2038-12-01T16:45:05Z", "ms": 2174834705255.2886 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-12-02", "window": { "start": { "local": "2038-12-02T11:57:28-04:00", "utc": "2038-12-02T15:57:28Z", "ms": 2174918248291.5083 }, "end": { "local": "2038-12-02T12:45:28-04:00", "utc": "2038-12-02T16:45:28Z", "ms": 2174921128291.5083 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:10 on Wed 1 Dec to 20:23 on Thu 2 Dec.", "fact": "2038-12-02T00:10:17Z → 2038-12-03T00:22:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 1st, 11:57–12:45 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26712 s" }, { "step": "ruling", "text": "Mitra Saptamī, Valencia, 2038: Thursday 2 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": "2038-12-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-02", "confidence": "determinate" } ], "quote": "In Valencia, Mitra Saptamī 2038 falls on Thursday 2 December. Saptamī runs from 20:10 on Wed 1 Dec to 20:23 on Thu 2 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/ekadashi?on=2038-12-06", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11216, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-12-06T01:03:34-04:00", "utc": "2038-12-06T05:03:34Z", "ms": 2175224613544.4094 }, "end": { "local": "2038-12-07T03:30:13-04:00", "utc": "2038-12-07T07:30:13Z", "ms": 2175319813252.7947 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-06T01:03:34-04:00", "utc": "2038-12-06T05:03:34Z", "ms": 2175224613544.4094 }, "end": { "local": "2038-12-07T03:30:13-04:00", "utc": "2038-12-07T07:30:13Z", "ms": 2175319813252.7947 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-12-06", "window": { "start": { "local": "2038-12-06T06:36:38-04:00", "utc": "2038-12-06T10:36:38Z", "ms": 2175244597768.8992 }, "end": { "local": "2038-12-06T06:36:38-04:00", "utc": "2038-12-06T10:36:38Z", "ms": 2175244597768.8992 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-12-07", "window": { "start": { "local": "2038-12-07T06:37:09-04:00", "utc": "2038-12-07T10:37:09Z", "ms": 2175331028928.0413 }, "end": { "local": "2038-12-07T06:37:09-04:00", "utc": "2038-12-07T10:37:09Z", "ms": 2175331028928.0413 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:04 on Mon 6 Dec to 03:30 on Tue 7 Dec.", "fact": "2038-12-06T05:03:34Z → 2038-12-07T07:30:13Z" }, { "step": "kaala", "text": "Sunrise is at 06:37 on the 6th and 06:37 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 6th and is not on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11216 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Valencia, 2038: Monday 6 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": "2038-12-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-06", "confidence": "determinate" } ], "quote": "In Valencia, Mokṣadā Ekādaśī 2038 falls on Monday 6 December. Ekādaśī runs from 01:04 on Mon 6 Dec to 03:30 on Tue 7 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-12-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21198, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-12-07T03:30:13-04:00", "utc": "2038-12-07T07:30:13Z", "ms": 2175319813252.7947 }, "end": { "local": "2038-12-08T06:06:40-04:00", "utc": "2038-12-08T10:06:40Z", "ms": 2175415600095.9897 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-07T03:30:13-04:00", "utc": "2038-12-07T07:30:13Z", "ms": 2175319813252.7947 }, "end": { "local": "2038-12-08T06:06:40-04:00", "utc": "2038-12-08T10:06:40Z", "ms": 2175415600095.9897 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-12-07", "window": { "start": { "local": "2038-12-07T11:59:32-04:00", "utc": "2038-12-07T15:59:32Z", "ms": 2175350371925.2197 }, "end": { "local": "2038-12-07T12:47:32-04:00", "utc": "2038-12-07T16:47:32Z", "ms": 2175353251925.2197 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-12-08", "window": { "start": { "local": "2038-12-08T11:59:58-04:00", "utc": "2038-12-08T15:59:58Z", "ms": 2175436798175.3718 }, "end": { "local": "2038-12-08T12:47:58-04:00", "utc": "2038-12-08T16:47:58Z", "ms": 2175439678175.3718 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:30 on Tue 7 Dec to 06:07 on Wed 8 Dec.", "fact": "2038-12-07T07:30:13Z → 2038-12-08T10:06:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 7th, 12:00–12:48 on the 8th.", "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 7th and 0 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21198 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Valencia, 2038: Tuesday 7 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": "2038-12-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-07", "confidence": "determinate" } ], "quote": "In Valencia, Akhaṇḍa Dvādaśī 2038 falls on Tuesday 7 December. Dvādaśī runs from 03:30 on Tue 7 Dec to 06:07 on Wed 8 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/pradosha-vrata?on=2038-12-08", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34017, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-12-08T06:06:40-04:00", "utc": "2038-12-08T10:06:40Z", "ms": 2175415600095.9897 }, "end": { "local": "2038-12-09T08:43:41-04:00", "utc": "2038-12-09T12:43:41Z", "ms": 2175511421041.8699 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-08T06:06:40-04:00", "utc": "2038-12-08T10:06:40Z", "ms": 2175415600095.9897 }, "end": { "local": "2038-12-09T08:43:41-04:00", "utc": "2038-12-09T12:43:41Z", "ms": 2175511421041.8699 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-12-08", "window": { "start": { "local": "2038-12-08T18:10:16-04:00", "utc": "2038-12-08T22:10:16Z", "ms": 2175459016138.4285 }, "end": { "local": "2038-12-08T19:50:00-04:00", "utc": "2038-12-08T23:50:00Z", "ms": 2175464999532.2927 } }, "covered_min": 100, "window_min": 100, "qualifies": true }, { "local_date": "2038-12-09", "window": { "start": { "local": "2038-12-09T18:10:38-04:00", "utc": "2038-12-09T22:10:38Z", "ms": 2175545438158.3062 }, "end": { "local": "2038-12-09T19:50:23-04:00", "utc": "2038-12-09T23:50:23Z", "ms": 2175551422809.034 } }, "covered_min": 0, "window_min": 100, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:07 on Wed 8 Dec to 08:44 on Thu 9 Dec.", "fact": "2038-12-08T10:06:40Z → 2038-12-09T12:43:41Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:10–19:50 on the 8th, 18:11–19:50 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 100 of 100 minutes on the 8th and 0 of 100 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34017 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Valencia, 2038: Wednesday 8 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-08", "confidence": "determinate" } ], "quote": "In Valencia, Śukla Pradoṣa Vrata 2038 falls on Wednesday 8 December. Trayodaśī runs from 06:07 on Wed 8 Dec to 08:44 on Thu 9 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-12-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16856, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-12-10T11:13:37-04:00", "utc": "2038-12-10T15:13:37Z", "ms": 2175606817300.0823 }, "end": { "local": "2038-12-11T13:30:28-04:00", "utc": "2038-12-11T17:30:28Z", "ms": 2175701428046.7197 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-10T11:13:37-04:00", "utc": "2038-12-10T15:13:37Z", "ms": 2175606817300.0823 }, "end": { "local": "2038-12-11T13:30:28-04:00", "utc": "2038-12-11T17:30:28Z", "ms": 2175701428046.7197 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-12-10", "window": { "start": { "local": "2038-12-10T18:11:01-04:00", "utc": "2038-12-10T22:11:01Z", "ms": 2175631860959.8723 }, "end": { "local": "2038-12-10T19:50:47-04:00", "utc": "2038-12-10T23:50:47Z", "ms": 2175637846768.0972 } }, "covered_min": 100, "window_min": 100, "qualifies": true }, { "local_date": "2038-12-11", "window": { "start": { "local": "2038-12-11T18:11:25-04:00", "utc": "2038-12-11T22:11:25Z", "ms": 2175718284520.2136 }, "end": { "local": "2038-12-11T19:51:11-04:00", "utc": "2038-12-11T23:51:11Z", "ms": 2175724271385.6145 } }, "covered_min": 0, "window_min": 100, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 11:14 on Fri 10 Dec to 13:30 on Sat 11 Dec.", "fact": "2038-12-10T15:13:37Z → 2038-12-11T17:30:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:11–19:51 on the 10th, 18:11–19:51 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 100 of 100 minutes on the 10th and 0 of 100 on the 11th.", "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 16856 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Valencia, 2038: Friday 10 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dattatreyotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Dattatreyotpatti (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-10", "confidence": "determinate" } ], "quote": "In Valencia, Dattātreyotpatti (Datta Jayanti) 2038 falls on Friday 10 December. Pūrṇimā runs from 11:14 on Fri 10 Dec to 13:30 on Sat 11 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/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": "/valencia/festivals/2038/sankashta-chaturthi?on=2038-12-14", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9275, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-12-14T18:19:37-04:00", "utc": "2038-12-14T22:19:37Z", "ms": 2175977976956.223 }, "end": { "local": "2038-12-15T19:04:18-04:00", "utc": "2038-12-15T23:04:18Z", "ms": 2176067057790.4143 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-14T18:19:37-04:00", "utc": "2038-12-14T22:19:37Z", "ms": 2175977976956.223 }, "end": { "local": "2038-12-15T19:04:18-04:00", "utc": "2038-12-15T23:04:18Z", "ms": 2176067057790.4143 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-12-14", "window": { "start": { "local": "2038-12-14T20:54:12-04:00", "utc": "2038-12-15T00:54:12Z", "ms": 2175987252215.2637 }, "end": { "local": "2038-12-14T20:54:12-04:00", "utc": "2038-12-15T00:54:12Z", "ms": 2175987252215.2637 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-12-15", "window": { "start": { "local": "2038-12-15T21:47:46-04:00", "utc": "2038-12-16T01:47:46Z", "ms": 2176076865867.8225 }, "end": { "local": "2038-12-15T21:47:46-04:00", "utc": "2038-12-16T01:47:46Z", "ms": 2176076865867.8225 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:20 on Tue 14 Dec to 19:04 on Wed 15 Dec.", "fact": "2038-12-14T22:19:37Z → 2038-12-15T23:04:18Z" }, { "step": "kaala", "text": "Moonrise is at 20:54 on the 14th and 21:48 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 14th and is not on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9275 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Valencia, 2038: Tuesday 14 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": "2038-12-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-14", "confidence": "determinate" } ], "quote": "In Valencia, Saṅkaṣṭa Caturthī 2038 falls on Tuesday 14 December. Caturthī runs from 18:20 on Tue 14 Dec to 19:04 on Wed 15 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/sankashta-chaturthi?on=2038-12-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/ekadashi?on=2038-12-22", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10101, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-12-21T12:20:38-04:00", "utc": "2038-12-21T16:20:38Z", "ms": 2176561238063.6394 }, "end": { "local": "2038-12-22T09:33:16-04:00", "utc": "2038-12-22T13:33:16Z", "ms": 2176637595569.9172 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-21T12:20:38-04:00", "utc": "2038-12-21T16:20:38Z", "ms": 2176561238063.6394 }, "end": { "local": "2038-12-22T09:33:16-04:00", "utc": "2038-12-22T13:33:16Z", "ms": 2176637595569.9172 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-12-21", "window": { "start": { "local": "2038-12-21T06:44:25-04:00", "utc": "2038-12-21T10:44:25Z", "ms": 2176541064561.488 }, "end": { "local": "2038-12-21T06:44:25-04:00", "utc": "2038-12-21T10:44:25Z", "ms": 2176541064561.488 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-12-22", "window": { "start": { "local": "2038-12-22T06:44:54-04:00", "utc": "2038-12-22T10:44:54Z", "ms": 2176627494373.1733 }, "end": { "local": "2038-12-22T06:44:54-04:00", "utc": "2038-12-22T10:44:54Z", "ms": 2176627494373.1733 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:21 on Tue 21 Dec to 09:33 on Wed 22 Dec.", "fact": "2038-12-21T16:20:38Z → 2038-12-22T13:33:16Z" }, { "step": "kaala", "text": "Sunrise is at 06:44 on the 21st and 06:45 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10101 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Valencia, 2038: Wednesday 22 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": "2038-12-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-22", "confidence": "determinate" } ], "quote": "In Valencia, Saphalā Ekādaśī 2038 falls on Wednesday 22 December. Ekādaśī runs from 12:21 on Tue 21 Dec to 09:33 on Wed 22 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/valencia/festivals/2038/ekadashi?on=2038-12-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/pradosha-vrata?on=2038-12-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26452, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-12-23T06:29:44-04:00", "utc": "2038-12-23T10:29:44Z", "ms": 2176712984377.741 }, "end": { "local": "2038-12-24T03:17:41-04:00", "utc": "2038-12-24T07:17:41Z", "ms": 2176787860519.2307 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-23T06:29:44-04:00", "utc": "2038-12-23T10:29:44Z", "ms": 2176712984377.741 }, "end": { "local": "2038-12-24T03:17:41-04:00", "utc": "2038-12-24T07:17:41Z", "ms": 2176787860519.2307 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-12-22", "window": { "start": { "local": "2038-12-22T18:16:26-04:00", "utc": "2038-12-22T22:16:26Z", "ms": 2176668986351.953 }, "end": { "local": "2038-12-22T19:56:18-04:00", "utc": "2038-12-22T23:56:18Z", "ms": 2176674978015.5457 } }, "covered_min": 0, "window_min": 100, "qualifies": false }, { "local_date": "2038-12-23", "window": { "start": { "local": "2038-12-23T18:16:57-04:00", "utc": "2038-12-23T22:16:57Z", "ms": 2176755416895.5767 }, "end": { "local": "2038-12-23T19:56:48-04:00", "utc": "2038-12-23T23:56:48Z", "ms": 2176761408361.5754 } }, "covered_min": 100, "window_min": 100, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:30 on Thu 23 Dec to 03:18 on Fri 24 Dec.", "fact": "2038-12-23T10:29:44Z → 2038-12-24T07:17:41Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–19:56 on the 22nd, 18:17–19:57 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 100 minutes on the 22nd and 100 of 100 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26452 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 2038: Thursday 23 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": "2038-12-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-23", "confidence": "determinate" } ], "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 2038 falls on Thursday 23 December. Trayodaśī runs from 06:30 on Thu 23 Dec to 03:18 on Fri 24 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/valencia/festivals/2038/pradosha-vrata?on=2038-12-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/shivaratri?on=2038-12-23", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-23", "confidence": "boundary", "boundary_reasons": [ "margin", "absent-unstated" ], "boundary_margin_s": 147, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-12-24T03:17:41-04:00", "utc": "2038-12-24T07:17:41Z", "ms": 2176787860519.2307 }, "end": { "local": "2038-12-25T00:05:28-04:00", "utc": "2038-12-25T04:05:28Z", "ms": 2176862728020.1436 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-24T03:17:41-04:00", "utc": "2038-12-24T07:17:41Z", "ms": 2176787860519.2307 }, "end": { "local": "2038-12-25T00:05:28-04:00", "utc": "2038-12-25T04:05:28Z", "ms": 2176862728020.1436 } }, "kaala": "nishita", "days": [ { "local_date": "2038-12-23", "window": { "start": { "local": "2038-12-24T00:07:25-04:00", "utc": "2038-12-24T04:07:25Z", "ms": 2176776444893.0718 }, "end": { "local": "2038-12-24T00:55:25-04:00", "utc": "2038-12-24T04:55:25Z", "ms": 2176779324893.0718 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-12-24", "window": { "start": { "local": "2038-12-25T00:07:55-04:00", "utc": "2038-12-25T04:07:55Z", "ms": 2176862874661.9978 }, "end": { "local": "2038-12-25T00:55:55-04:00", "utc": "2038-12-25T04:55:55Z", "ms": 2176865754661.9978 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:18 on Fri 24 Dec to 00:05 on Sat 25 Dec.", "fact": "2038-12-24T07:17:41Z → 2038-12-25T04:05:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 23rd, 00:08–00:56 on the 24th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 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": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 147 s < 300 s" }, { "step": "ruling", "text": "Śivarātri, Valencia, 2038: Thursday 23 December.", "fact": "confidence: boundary (margin, absent-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-12-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-23", "confidence": "boundary" } ], "quote": "In Valencia, Śivarātri 2038 falls on Thursday 23 December. Caturdaśī runs from 03:18 on Fri 24 Dec to 00:05 on Sat 25 Dec, and reaches niśītha on neither day. It is 2 min 27 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/valencia/festivals/2038/shivaratri?on=2038-12-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/valencia/festivals/2038/vinayaka-chaturthi?on=2038-12-29", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "3625549", "year": 2038, "local_date": "2038-12-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 798, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-12-28T14:13:40-04:00", "utc": "2038-12-28T18:13:40Z", "ms": 2177172820453.9836 }, "end": { "local": "2038-12-29T13:11:27-04:00", "utc": "2038-12-29T17:11:27Z", "ms": 2177255487039.317 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-28T14:13:40-04:00", "utc": "2038-12-28T18:13:40Z", "ms": 2177172820453.9836 }, "end": { "local": "2038-12-29T13:11:27-04:00", "utc": "2038-12-29T17:11:27Z", "ms": 2177255487039.317 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-12-28", "window": { "start": { "local": "2038-12-28T12:09:39-04:00", "utc": "2038-12-28T16:09:39Z", "ms": 2177165379347.1333 }, "end": { "local": "2038-12-28T12:57:39-04:00", "utc": "2038-12-28T16:57:39Z", "ms": 2177168259347.1333 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-12-29", "window": { "start": { "local": "2038-12-29T12:10:09-04:00", "utc": "2038-12-29T16:10:09Z", "ms": 2177251808664.5303 }, "end": { "local": "2038-12-29T12:58:09-04:00", "utc": "2038-12-29T16:58:09Z", "ms": 2177254688664.5303 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:14 on Tue 28 Dec to 13:11 on Wed 29 Dec.", "fact": "2038-12-28T18:13:40Z → 2038-12-29T17:11:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 28th, 12:10–12:58 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 798 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Valencia, 2038: Wednesday 29 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": "2038-12-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-29", "confidence": "determinate" } ], "quote": "In Valencia, Vināyaka Caturthī 2038 falls on Wednesday 29 December. Caturthī runs from 14:14 on Tue 28 Dec to 13:11 on Wed 29 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/valencia/festivals/2038/vinayaka-chaturthi?on=2038-12-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }