Ruling · Kokilā Vrata · 2013

Monday 22 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 397 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 Sunday 21 July

Pūrṇimā is absent from sāyāhna. Not taken.

16:45 sāyāhna beginssunset 19:39
16:2116:4517:0917:3317:5718:2118:4519:0919:3319:57

0 of 174 minutes covered

Late afternoon of Monday 22 July

Taken. The only late afternoon Pūrṇimā reaches.

16:45 sāyāhna beginssunset 19:38
16:2116:4517:0917:3317:5718:2118:4519:0919:3319:57

173 of 173 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 06:02 on Mon 22 Jul to 02:16 on Tue 23 Jul.

    2013-07-21T22:01:48Z → 2013-07-22T18:15:32Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:45–19:39 on the 21st, 16:45–19:38 on the 22nd.

    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 174 minutes on the 21st and 173 of 173 on the 22nd.

    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 23849 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 2013: Monday 22 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 2013 falls on Monday 22 July. Pūrṇimā runs from 06:02 on Mon 22 Jul to 02:16 on Tue 23 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2013/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 22 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 22 Jul
compat-drikpanchangComparison profileMon 22 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 21stCoveredSāyāhna 22ndCoveredRuled
Los Angeles15:02 → 11:1617:12169 min17:120 min21 Jul
Chicago17:02 → 13:1617:22177 min17:220 min21 Jul
Jersey City18:02 → 14:1617:26140 min17:250 min21 Jul
Port of Spain18:02 → 14:1616:0030 min16:000 min21 Jul
London23:02 → 19:1617:530 min17:5283 min22 Jul
Durban00:02 → 20:1615:110 min15:12126 min22 Jul
Dubai02:02 → 22:1616:270 min16:27161 min22 Jul
Delhi03:32 → 23:4616:340 min16:34164 min22 Jul
Kolkata03:32 → 23:4615:420 min15:42160 min22 Jul
Singapore06:02 → 02:1616:500 min16:50146 min22 Jul
Sydney08:02 → 04:1615:050 min15:06123 min22 Jul
Suva10:02 → 06:1615:340 min15:34134 min22 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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