Ruling · Kokilā Vrata · 1948

Tuesday 20 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 374 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Tuesday 20 July

Taken. The only late afternoon Pūrṇimā reaches.

17:45 sāyāhna beginssunset 20:40
17:2117:4518:0918:3318:5719:2119:4520:0920:3320:57

174 of 174 minutes covered

Late afternoon of Wednesday 21 July

Pūrṇimā is absent from sāyāhna. Not taken.

17:45 sāyāhna beginssunset 20:39
17:2117:4518:0918:3318:5719:2119:4520:0920:3320:57

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 09:50 on Tue 20 Jul to 11:31 on Wed 21 Jul.

    1948-07-20T00:50:06Z → 1948-07-21T02:31:02Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 17:45–20:40 on the 20th, 17:45–20:39 on the 21st.

    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 20th and 0 of 174 on the 21st.

    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 22439 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1948: Tuesday 20 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1948 falls on Tuesday 20 July. Pūrṇimā runs from 09:50 on Tue 20 Jul to 11:31 on Wed 21 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1948/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 20 Jul
compat-drikpanchangComparison profileTue 20 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 20thCoveredSāyāhna 21stCoveredRuled
Los Angeles17:50 → 19:3117:13138 min17:120 min20 Jul
Chicago19:50 → 21:3117:23177 min17:220 min20 Jul
Jersey City20:50 → 22:3117:26176 min17:260 min20 Jul
Port of Spain20:50 → 22:3116:00152 min16:000 min20 Jul
London01:50 → 03:3117:54192 min17:530 min20 Jul
Durban02:50 → 04:3115:11126 min15:110 min20 Jul
Dubai04:50 → 06:3116:28162 min16:270 min20 Jul
Delhi06:20 → 08:0116:34165 min16:340 min20 Jul
Kolkata06:20 → 08:0115:43160 min15:420 min20 Jul
Singapore08:20 → 10:0116:20146 min16:200 min20 Jul
Sydney10:50 → 12:3115:05122 min15:050 min20 Jul
Suva12:50 → 14:3115:34134 min15:340 min20 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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