Ruling · Kokilā Vrata · 1971

Thursday 8 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 8 min 15 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 7 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:49 sāyāhna beginssunset 19:46
Pūrṇimā begins 19:54:19
16:2516:4917:1317:3718:0118:2518:4919:1319:3720:01

0 of 177 minutes covered

Late afternoon of Thursday 8 July

Taken. The only late afternoon Pūrṇimā reaches.

16:49 sāyāhna beginssunset 19:46
Pūrṇimā ends 18:36:35
16:2516:4917:1317:3718:0118:2518:4919:1319:3720:01

108 of 177 minutes covered, the first 108

Pūrṇimā presentSāyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 19:54 on Wed 7 Jul to 18:37 on Thu 8 Jul.

    1971-07-07T11:54:19Z → 1971-07-08T10:36:35Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:49–19:46 on the 7th, 16:49–19:46 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 0 of 177 minutes on the 7th and 108 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 495 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1971: Thursday 8 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1971 falls on Thursday 8 July. Pūrṇimā runs from 19:54 on Wed 7 Jul to 18:37 on Thu 8 Jul and covers 108 of 177 minutes of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1971/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 8 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 8 Jul
compat-drikpanchangComparison profileThu 8 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 7thCoveredSāyāhna 8thCoveredRuled
Los Angeles04:54 → 03:3717:15172 min17:150 min7 Jul
Chicago06:54 → 05:3717:27181 min17:270 min7 Jul
Jersey City07:54 → 06:3717:30180 min17:300 min7 Jul
Port of Spain07:54 → 06:3716:00153 min16:000 min7 Jul
London12:54 → 11:3718:01197 min18:000 min7 Jul
Durban13:54 → 12:3715:06123 min15:060 min7 Jul
Dubai15:54 → 14:3716:29164 min16:290 min7 Jul
Delhi17:24 → 16:0716:36118 min16:360 min7 Jul
Kolkata17:24 → 16:0715:4361 min15:4323 min7 Jul
Singapore19:24 → 18:0716:190 min16:19108 min8 Jul
Sydney21:54 → 20:3714:590 min15:00120 min8 Jul
Suva23:54 → 22:3715:300 min15:31133 min8 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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