Ruling · Kokilā Vrata · 2020

Saturday 4 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 165 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 Saturday 4 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

Late afternoon of Sunday 5 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:49 sāyāhna beginssunset 19:46
16:2516:4917:1317:3718:0118:2518:4919:1319:3720:01

0 of 177 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 14:04 on Sat 4 Jul to 12:44 on Sun 5 Jul.

    2020-07-04T06:04:17Z → 2020-07-05T04:44:25Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:49–19:47 on the 4th, 16:49–19:46 on the 5th.

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

  3. 03

    Rule

    Pūrṇimā must be present during sāyāhna. It covers 178 of 178 minutes on the 4th and 0 of 177 on the 5th.

    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 9880 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 2020: Saturday 4 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 2020 falls on Saturday 4 July. Pūrṇimā runs from 14:04 on Sat 4 Jul to 12:44 on Sun 5 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2020/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 4 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 4 Jul
compat-drikpanchangComparison profileSat 4 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 4thCoveredSāyāhna 5thCoveredRuled
Los Angeles23:04 → 21:4417:16172 min17:160 min4 Jul
Chicago01:04 → 23:4417:27181 min17:270 min4 Jul
Jersey City02:04 → 00:4417:31180 min17:300 min4 Jul
Port of Spain02:04 → 00:4416:00153 min16:000 min4 Jul
London07:04 → 05:4418:01198 min18:010 min4 Jul
Durban08:04 → 06:4415:05123 min15:060 min4 Jul
Dubai10:04 → 08:4416:29164 min16:290 min4 Jul
Delhi11:34 → 10:1416:36167 min16:360 min4 Jul
Kolkata11:34 → 10:1415:43162 min15:430 min4 Jul
Singapore14:04 → 12:4416:48146 min16:490 min4 Jul
Sydney16:04 → 14:4414:5954 min14:590 min4 Jul
Suva18:04 → 16:4415:300 min15:3074 min5 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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