Ruling · Kokilā Vrata · 1909

Saturday 3 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 30 minutes.

Decide it for

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 Friday 2 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:49 sāyāhna beginssunset 19:47
16:2516:4917:1317:3718:0118:2518:4919:1319:3720:01

0 of 178 minutes covered

Late afternoon of Saturday 3 July

Taken. The only late afternoon Pūrṇimā reaches.

16:49 sāyāhna beginssunset 19:47
16:2516:4917:1317:3718:0118:2518:4919:1319:3720:01

178 of 178 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 21:28 on Fri 2 Jul to 20:17 on Sat 3 Jul.

    1909-07-02T13:28:29Z → 1909-07-03T12:17:08Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:49–19:47 on the 2nd, 16:49–19:47 on the 3rd.

    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 178 minutes on the 2nd and 178 of 178 on the 3rd.

    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 1824 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1909: Saturday 3 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1909 falls on Saturday 3 July. Pūrṇimā runs from 21:28 on Fri 2 Jul to 20:17 on Sat 3 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1909/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 3 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 3 Jul
compat-drikpanchangComparison profileSat 3 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 2ndCoveredSāyāhna 3rdCoveredRuled
Los Angeles05:28 → 04:1716:15172 min16:150 min2 Jul
Chicago07:28 → 06:1716:27182 min16:270 min2 Jul
Jersey City08:28 → 07:1716:30180 min16:300 min2 Jul
Port of Spain09:28 → 08:1715:59153 min15:590 min2 Jul
London13:28 → 12:1717:02198 min17:020 min2 Jul
Durban15:28 → 14:1715:0499 min15:040 min2 Jul
Dubai17:09 → 15:5816:09104 min16:090 min2 Jul
Delhi18:58 → 17:4716:3524 min16:3572 min3 Jul
Kolkata18:58 → 17:4715:430 min15:43124 min3 Jul
Singapore20:28 → 19:1715:480 min15:48146 min3 Jul
Sydney23:28 → 22:1714:570 min14:58119 min3 Jul
Suva01:23 → 00:1215:240 min15:24133 min3 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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