Ruling · Vyāsa Pūjā · 1961

Thursday 27 July

Boundaryin Baoding, under the Rashtriya Panchang method. Pūrṇimā reaches the first three muhūrtas after sunrise on neither day and the rule does not say what then. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two mornings

One ghaṭī is 24 minutes. The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas.

Morning of Thursday 27 July

Taken. Pūrṇimā reaches neither morning; this is the day it falls on.

05:14 sunrisethree muhūrtas on 08:06
Pūrṇimā begins 07:30:38
04:5005:1405:3806:0206:2606:5007:1407:3808:0208:26

36 of 172 minutes covered, the last 36

Morning of Friday 28 July

Pūrṇimā is absent from the first three muhūrtas after sunrise. Not taken.

05:15 sunrisethree muhūrtas on 08:07
04:5105:1505:3906:0306:2706:5107:1507:3908:0308:27

0 of 172 minutes covered

Pūrṇimā presentThe first three muhūrtas after sunrise, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 07:31 on Thu 27 Jul to 03:50 on Fri 28 Jul.

    1961-07-26T23:30:38Z → 1961-07-27T19:50:04Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:14–08:06 on the 27th, 05:15–08:07 on the 28th.

    udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 36 of 172 minutes on the 27th and 0 of 172 on the 28th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither morning qualifies. The day the tithi falls on is taken.

    priority: paraviddha → tithi-day · margin 2142 s

  5. 05

    Ruling

    Vyāsa Pūjā, Baoding, 1961: Thursday 27 July.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Vyāsa Pūjā 1961 falls on Thursday 27 July. Pūrṇimā runs from 07:31 on Thu 27 Jul to 03:50 on Fri 28 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/baoding/festivals/1961/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 27 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 27 Jul
compat-drikpanchangComparison profileThu 27 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/vyasa-puja · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
The first three muhūrtas after sunrise
Priority
Paraviddhā
Tie-break
Second day
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.

PlacePūrṇimāSunrise 26thCoveredSunrise 27thCoveredRuled
Los Angeles16:31 → 12:5006:000 min06:01167 min27 Jul
Chicago18:31 → 14:5005:390 min05:40175 min27 Jul
Jersey City19:31 → 15:5005:470 min05:48174 min27 Jul
Port of Spain19:31 → 15:5005:540 min05:54151 min27 Jul
London00:31 → 20:5005:150 min05:17188 min27 Jul
Durban01:31 → 21:5006:450 min06:45127 min27 Jul
Dubai03:31 → 23:5005:430 min05:44161 min27 Jul
Delhi05:01 → 01:2005:390 min05:39163 min27 Jul
Kolkata05:01 → 01:2005:050 min05:06159 min27 Jul
Singapore07:01 → 03:2006:360 min06:36121 min27 Jul
Sydney09:31 → 05:5006:530 min06:520 min27 Jul
Suva11:31 → 07:5006:360 min06:360 min27 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vyasa-puja@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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