Ruling · Kokilā Vrata · 1908

Monday 13 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 461 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 Monday 13 July

Taken. The only late afternoon Pūrṇimā reaches.

16:48 sāyāhna beginssunset 19:44
16:2416:4817:1217:3618:0018:2418:4819:1219:3620:00

176 of 176 minutes covered

Late afternoon of Tuesday 14 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:47 sāyāhna beginssunset 19:43
16:2316:4717:1117:3517:5918:2318:4719:1119:3519:59

0 of 176 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 09:06 on Mon 13 Jul to 05:48 on Tue 14 Jul.

    1908-07-13T01:06:06Z → 1908-07-13T21:47:43Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:48–19:44 on the 13th, 16:47–19:43 on the 14th.

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

  3. 03

    Rule

    Pūrṇimā must be present during sāyāhna. It covers 176 of 176 minutes on the 13th and 0 of 176 on the 14th.

    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 27689 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1908: Monday 13 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1908 falls on Monday 13 July. Pūrṇimā runs from 09:06 on Mon 13 Jul to 05:48 on Tue 14 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1908/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 13 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 13 Jul
compat-drikpanchangComparison profileMon 13 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 13thCoveredSāyāhna 14thCoveredRuled
Los Angeles17:06 → 13:4816:150 min16:140 min12 Jul
Chicago19:06 → 15:4816:250 min16:250 min12 Jul
Jersey City20:06 → 16:4816:2919 min16:290 min13 Jul
Port of Spain21:06 → 17:4816:00108 min16:000 min13 Jul
London01:06 → 21:4816:58195 min16:580 min13 Jul
Durban03:06 → 23:4815:08124 min15:080 min13 Jul
Dubai04:47 → 01:2916:09163 min16:090 min13 Jul
Delhi06:36 → 03:1816:35166 min16:350 min13 Jul
Kolkata06:36 → 03:1815:43161 min15:430 min13 Jul
Singapore08:06 → 04:4815:49146 min15:490 min13 Jul
Sydney11:06 → 07:4815:02121 min15:020 min13 Jul
Suva13:01 → 09:4315:27133 min15:270 min13 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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