Ruling · Kokilā Vrata · 2064

Sunday 27 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 60 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 27 July

Taken. The only late afternoon Pūrṇimā reaches.

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

172 of 172 minutes covered

Late afternoon of Monday 28 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:41 sāyāhna beginssunset 19:33
16:1716:4117:0517:2917:5318:1718:4119:0519:2919:53

0 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 15:24 on Sun 27 Jul to 15:41 on Mon 28 Jul.

    2064-07-27T07:24:29Z → 2064-07-28T07:41:02Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:42–19:34 on the 27th, 16:41–19:33 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 172 of 172 minutes on the 27th and 0 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 3624 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 2064: Sunday 27 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 2064 falls on Sunday 27 July. Pūrṇimā runs from 15:24 on Sun 27 Jul to 15:41 on Mon 28 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2064/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 27 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 27 Jul
compat-drikpanchangComparison profileSun 27 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 Angeles00:24 → 00:4117:10167 min17:100 min27 Jul
Chicago02:24 → 02:4117:19174 min17:180 min27 Jul
Jersey City03:24 → 03:4117:23173 min17:220 min27 Jul
Port of Spain03:24 → 03:4116:00151 min15:590 min27 Jul
London08:24 → 08:4117:48187 min17:470 min27 Jul
Durban09:24 → 09:4115:14127 min15:140 min27 Jul
Dubai11:24 → 11:4116:26160 min16:250 min27 Jul
Delhi12:54 → 13:1116:32163 min16:320 min27 Jul
Kolkata12:54 → 13:1115:41159 min15:410 min27 Jul
Singapore15:24 → 15:4116:50146 min16:500 min27 Jul
Sydney17:24 → 17:4115:080 min15:09124 min28 Jul
Suva19:24 → 19:4115:360 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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