Ruling · Kokilā Vrata · 1997

Saturday 19 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 150 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 19 July

Taken. The only late afternoon Pūrṇimā reaches.

16:46 sāyāhna beginssunset 19:40
16:2216:4617:1017:3417:5818:2218:4619:1019:3419:58

174 of 174 minutes covered

Late afternoon of Sunday 20 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:45 sāyāhna beginssunset 19:40
16:2116:4517:0917:3317:5718:2118:4519:0919:3319:57

0 of 174 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 14:15 on Sat 19 Jul to 11:20 on Sun 20 Jul.

    1997-07-19T06:15:25Z → 1997-07-20T03:20:17Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:46–19:40 on the 19th, 16:45–19:40 on the 20th.

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

  3. 03

    Rule

    Pūrṇimā must be present during sāyāhna. It covers 174 of 174 minutes on the 19th and 0 of 174 on the 20th.

    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 9023 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1997: Saturday 19 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1997 falls on Saturday 19 July. Pūrṇimā runs from 14:15 on Sat 19 Jul to 11:20 on Sun 20 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1997/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 19 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 19 Jul
compat-drikpanchangComparison profileSat 19 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 19thCoveredSāyāhna 20thCoveredRuled
Los Angeles23:15 → 20:2017:13169 min17:130 min19 Jul
Chicago01:15 → 22:2017:23178 min17:230 min19 Jul
Jersey City02:15 → 23:2017:27176 min17:260 min19 Jul
Port of Spain02:15 → 23:2016:00152 min16:000 min19 Jul
London07:15 → 04:2017:54192 min17:540 min19 Jul
Durban08:15 → 05:2015:10125 min15:110 min19 Jul
Dubai10:15 → 07:2016:28162 min16:280 min19 Jul
Delhi11:45 → 08:5016:34165 min16:340 min19 Jul
Kolkata11:45 → 08:5015:43160 min15:430 min19 Jul
Singapore14:15 → 11:2016:50146 min16:500 min19 Jul
Sydney16:15 → 13:2015:0451 min15:050 min19 Jul
Suva18:15 → 15:2015:330 min15:340 min19 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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