Ruling · Kokilā Vrata · 2028

Thursday 6 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 348 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 Wednesday 5 July

Pūrṇimā is absent from sāyāhna. Not taken.

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

0 of 177 minutes covered

Late afternoon of Thursday 6 July

Taken. The only late afternoon Pūrṇimā reaches.

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

177 of 177 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 01:34 on Thu 6 Jul to 02:11 on Fri 7 Jul.

    2028-07-05T17:34:24Z → 2028-07-06T18:10:49Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:49–19:46 on the 5th, 16:49–19:46 on the 6th.

    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 5th and 177 of 177 on the 6th.

    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 20884 s

  5. 05

    Ruling

    Kokilā Vrata, Baoding, 2028: Thursday 6 July.

    confidence: determinate

Say it like this

In Baoding, Kokilā Vrata 2028 falls on Thursday 6 July. Pūrṇimā runs from 01:34 on Thu 6 Jul to 02:11 on Fri 7 Jul and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2028/kokila-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 6 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 6 Jul
compat-drikpanchangComparison profileThu 6 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 5thCoveredSāyāhna 6thCoveredRuled
Los Angeles10:34 → 11:1117:16172 min17:160 min5 Jul
Chicago12:34 → 13:1117:27181 min17:270 min5 Jul
Jersey City13:34 → 14:1117:30180 min17:300 min5 Jul
Port of Spain13:34 → 14:1116:00153 min16:000 min5 Jul
London18:34 → 19:1118:01164 min18:0170 min5 Jul
Durban19:34 → 20:1115:060 min15:06123 min6 Jul
Dubai21:34 → 22:1116:290 min16:29164 min6 Jul
Delhi23:04 → 23:4116:360 min16:36167 min6 Jul
Kolkata23:04 → 23:4115:430 min15:44161 min6 Jul
Singapore01:34 → 02:1116:490 min16:49146 min6 Jul
Sydney03:34 → 04:1114:590 min15:00120 min6 Jul
Suva05:34 → 06:1115:300 min15:30133 min6 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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