Ruling · Kokilā Vrata · 2045

Friday 28 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 494 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 Thursday 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

Late afternoon of Friday 28 July

Taken. The only late afternoon Pūrṇimā reaches.

16:42 sāyāhna beginssunset 19:33
16:1816:4217:0617:3017:5418:1818:4219:0619:3019:54

171 of 171 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 03:47 on Fri 28 Jul to 06:11 on Sat 29 Jul.

    2045-07-27T19:47:21Z → 2045-07-28T22:10:41Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:42–19:34 on the 27th, 16:42–19:33 on the 28th.

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

  3. 03

    Rule

    Pūrṇimā must be present during sāyāhna. It covers 0 of 172 minutes on the 27th and 171 of 171 on the 28th.

    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 29611 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 2045: Friday 28 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 2045 falls on Friday 28 July. Pūrṇimā runs from 03:47 on Fri 28 Jul to 06:11 on Sat 29 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2045/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 28 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 28 Jul
compat-drikpanchangComparison profileFri 28 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 27thCoveredSāyāhna 28thCoveredRuled
Los Angeles12:47 → 15:1117:10167 min17:100 min27 Jul
Chicago14:47 → 17:1117:19175 min17:180 min27 Jul
Jersey City15:47 → 18:1117:23173 min17:2249 min27 Jul
Port of Spain15:47 → 18:1116:00151 min15:59131 min27 Jul
London20:47 → 23:1117:488 min17:47187 min28 Jul
Durban21:47 → 00:1115:140 min15:14127 min28 Jul
Dubai23:47 → 02:1116:260 min16:25160 min28 Jul
Delhi01:17 → 03:4116:320 min16:32163 min28 Jul
Kolkata01:17 → 03:4115:410 min15:41159 min28 Jul
Singapore03:47 → 06:1116:500 min16:50146 min28 Jul
Sydney05:47 → 08:1115:080 min15:08124 min28 Jul
Suva07:47 → 10:1115:350 min15:36135 min28 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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