Ruling · Kokilā Vrata · 2037

Sunday 26 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 267 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two late afternoons

One ghaṭī is 24 minutes. Sāyāhna is last 3 of 15 day muhūrtas.

Late afternoon of Sunday 26 July

Taken. The only late afternoon Pūrṇimā reaches.

16:43 sāyāhna beginssunset 19:35
16:1916:4317:0717:3117:5518:1918:4319:0719:3119:55

172 of 172 minutes covered

Late afternoon of Monday 27 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:42 sāyāhna beginssunset 19:34
16:1816:4217:0617:3017:5418:1818:4219:0619:3019:54

0 of 172 minutes covered

Pūrṇimā presentSāyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 11:04 on Sun 26 Jul to 12:15 on Mon 27 Jul.

    2037-07-26T03:03:58Z → 2037-07-27T04:15:12Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:43–19:35 on the 26th, 16:42–19:34 on the 27th.

    sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during sāyāhna. It covers 172 of 172 minutes on the 26th and 0 of 172 on the 27th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one late afternoon qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 16014 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 2037: Sunday 26 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 2037 falls on Sunday 26 July. Pūrṇimā runs from 11:04 on Sun 26 Jul to 12:15 on Mon 27 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2037/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 26 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 26 Jul
compat-drikpanchangComparison profileSun 26 Jul
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/kokila-vrata · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Sāyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

“S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāSāyāhna 26thCoveredSāyāhna 27thCoveredRuled
Los Angeles20:04 → 21:1517:11167 min17:100 min26 Jul
Chicago22:04 → 23:1517:19175 min17:190 min26 Jul
Jersey City23:04 → 00:1517:23174 min17:230 min26 Jul
Port of Spain23:04 → 00:1516:00151 min16:000 min26 Jul
London04:04 → 05:1517:49188 min17:480 min26 Jul
Durban05:04 → 06:1515:13127 min15:130 min26 Jul
Dubai07:04 → 08:1516:26161 min16:260 min26 Jul
Delhi08:34 → 09:4516:32163 min16:320 min26 Jul
Kolkata08:34 → 09:4515:41159 min15:410 min26 Jul
Singapore11:04 → 12:1516:50146 min16:500 min26 Jul
Sydney13:04 → 14:1515:08124 min15:080 min26 Jul
Suva15:04 → 16:1515:35135 min15:3540 min26 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
kokila-vrata@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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