Ruling · Kokilā Vrata · 1920

Wednesday 30 June

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 8 min 27 s.

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 30 June

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 Thursday 1 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:49 sāyāhna beginssunset 19:47
Pūrṇimā ends 16:40:19
16:2516:4917:1317:3718:0118:2518:4919:1319:3720:01

0 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 14:15 on Wed 30 Jun to 16:40 on Thu 1 Jul.

    1920-06-30T06:14:56Z → 1920-07-01T08:40:20Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:49–19:47 on the 30th, 16:49–19:47 on the 1st.

    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 30th and 0 of 178 on the 1st.

    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 507 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1920: Wednesday 30 June.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1920 falls on Wednesday 30 June. Pūrṇimā runs from 14:15 on Wed 30 Jun to 16:40 on Thu 1 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1920/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 30 Jun
Ahargaṇa, classicalDisc centre, no refractionWed 30 Jun
compat-drikpanchangComparison profileWed 30 Jun
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 30thCoveredSāyāhna 1stCoveredRuled
Los Angeles22:15 → 00:4016:15173 min16:150 min30 Jun
Chicago01:15 → 03:4017:27182 min17:270 min30 Jun
Jersey City02:15 → 04:4017:30181 min17:300 min30 Jun
Port of Spain02:15 → 04:4015:59153 min15:590 min30 Jun
London07:15 → 09:4018:02199 min18:020 min30 Jun
Durban08:15 → 10:4015:04123 min15:040 min30 Jun
Dubai10:15 → 12:4016:28164 min16:280 min30 Jun
Delhi11:45 → 14:1016:35167 min16:350 min30 Jun
Kolkata11:45 → 14:1015:43162 min15:430 min30 Jun
Singapore13:15 → 15:4015:47146 min15:480 min30 Jun
Sydney16:15 → 18:4014:5741 min14:57119 min1 Jul
Suva18:15 → 20:4015:280 min15:29133 min1 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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