Ruling · Kokilā Vrata · 1930

Thursday 10 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 388 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 Wednesday 9 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:48 sāyāhna beginssunset 19:45
16:2416:4817:1217:3618:0018:2418:4819:1219:3620:00

0 of 177 minutes covered

Late afternoon of Thursday 10 July

Taken. The only late afternoon Pūrṇimā reaches.

16:48 sāyāhna beginssunset 19:45
16:2416:4817:1217:3618:0018:2418:4819:1219:3620:00

177 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 02:14 on Thu 10 Jul to 04:01 on Fri 11 Jul.

    1930-07-09T18:13:38Z → 1930-07-10T20:00:59Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:48–19:45 on the 9th, 16:48–19:45 on the 10th.

    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 177 minutes on the 9th and 177 of 177 on the 10th.

    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 23292 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1930: Thursday 10 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1930 falls on Thursday 10 July. Pūrṇimā runs from 02:14 on Thu 10 Jul to 04:01 on Fri 11 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1930/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 10 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 10 Jul
compat-drikpanchangComparison profileThu 10 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 9thCoveredSāyāhna 10thCoveredRuled
Los Angeles10:14 → 12:0116:15172 min16:150 min9 Jul
Chicago13:14 → 15:0117:26181 min17:260 min9 Jul
Jersey City14:14 → 16:0117:30179 min17:300 min9 Jul
Port of Spain14:14 → 16:0116:00153 min16:001 min9 Jul
London19:14 → 21:0118:00123 min18:00181 min10 Jul
Durban20:14 → 22:0115:060 min15:07124 min10 Jul
Dubai22:14 → 00:0116:290 min16:29163 min10 Jul
Delhi23:44 → 01:3116:360 min16:36166 min10 Jul
Kolkata23:44 → 01:3115:430 min15:43161 min10 Jul
Singapore01:14 → 03:0115:490 min15:49146 min10 Jul
Sydney04:14 → 06:0115:000 min15:00120 min10 Jul
Suva06:14 → 08:0115:310 min15:31133 min10 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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