Ruling · Kokilā Vrata · 1901

Monday 1 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 571 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 1 July

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 Tuesday 2 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:49 sāyāhna beginssunset 19:47
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 06:35 on Mon 1 Jul to 07:18 on Tue 2 Jul.

    1901-06-30T22:35:24Z → 1901-07-01T23:17:38Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:49–19:47 on the 1st, 16:49–19:47 on the 2nd.

    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 1st and 0 of 178 on the 2nd.

    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 34268 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 1901: Monday 1 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 1901 falls on Monday 1 July. Pūrṇimā runs from 06:35 on Mon 1 Jul to 07:18 on Tue 2 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1901/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 1 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 1 Jul
compat-drikpanchangComparison profileMon 1 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 30thCoveredSāyāhna 1stCoveredRuled
Los Angeles14:35 → 15:1816:15173 min16:150 min30 Jun
Chicago16:35 → 17:1816:27174 min16:2751 min30 Jun
Jersey City17:35 → 18:1816:30116 min16:30107 min30 Jun
Port of Spain18:35 → 19:1815:590 min15:59153 min1 Jul
London22:35 → 23:1817:020 min17:02199 min1 Jul
Durban00:05 → 00:4814:330 min14:34123 min1 Jul
Dubai02:16 → 02:5916:090 min16:09164 min1 Jul
Delhi03:56 → 04:3916:260 min16:26167 min1 Jul
Kolkata03:56 → 04:3915:340 min15:34162 min1 Jul
Singapore05:30 → 06:1315:420 min15:42146 min1 Jul
Sydney08:35 → 09:1814:570 min14:57119 min1 Jul
Suva10:30 → 11:1315:230 min15:24133 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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