Ruling · Kokilā Vrata · 1990

Saturday 7 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 445 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 Saturday 7 July

Taken. The only late afternoon Pūrṇimā reaches.

17:49 sāyāhna beginssunset 20:46
17:2517:4918:1318:3719:0119:2519:4920:1320:3721:01

177 of 177 minutes covered

Late afternoon of Sunday 8 July

Pūrṇimā is absent from sāyāhna. Not taken.

17:49 sāyāhna beginssunset 20:46
17:2517:4918:1318:3719:0119:2519:4920:1320:3721:01

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 08:52 on Sat 7 Jul to 10:23 on Sun 8 Jul.

    1990-07-06T23:52:14Z → 1990-07-08T01:23:29Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 17:49–20:46 on the 7th, 17:49–20:46 on the 8th.

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

  3. 03

    Rule

    Pūrṇimā must be present during sāyāhna. It covers 177 of 177 minutes on the 7th and 0 of 177 on the 8th.

    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 26708 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1990: Saturday 7 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1990 falls on Saturday 7 July. Pūrṇimā runs from 08:52 on Sat 7 Jul to 10:23 on Sun 8 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1990/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 7 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 7 Jul
compat-drikpanchangComparison profileSat 7 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 6thCoveredSāyāhna 8thCoveredRuled
Los Angeles16:52 → 18:2317:16172 min17:150 min6 Jul
Chicago18:52 → 20:2317:2796 min17:270 min7 Jul
Jersey City19:52 → 21:2317:3038 min17:300 min7 Jul
Port of Spain19:52 → 21:2316:000 min16:000 min7 Jul
London00:52 → 02:2318:010 min18:000 min7 Jul
Durban01:52 → 03:2315:060 min15:060 min7 Jul
Dubai03:52 → 05:2316:290 min16:290 min7 Jul
Delhi05:22 → 06:5316:360 min16:360 min7 Jul
Kolkata05:22 → 06:5315:430 min15:440 min7 Jul
Singapore07:52 → 09:2316:490 min16:490 min7 Jul
Sydney09:52 → 11:2314:590 min15:000 min7 Jul
Suva11:52 → 13:2315:300 min15:310 min7 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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