Ruling · Vyāsa Pūjā · 1923

Friday 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 Friday 27 July

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

05:14 sunrisethree muhūrtas on 08:06
Pūrṇimā begins 07:43:14
04:5005:1405:3806:0206:2606:5007:1407:3808:0208:26

23 of 172 minutes covered, the last 23

Morning of Saturday 28 July

Pūrṇimā holds for 78 of 172 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.

05:14 sunrisethree muhūrtas on 08:06
Pūrṇimā ends 06:32:24
04:5005:1405:3806:0206:2606:5007:1407:3808:0208:26

78 of 172 minutes covered, the first 78

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 07:43 on Fri 27 Jul to 06:32 on Sat 28 Jul.

    1923-07-26T23:43:15Z → 1923-07-27T22:32:24Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:14–08:06 on the 27th, 05:14–08:06 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 23 of 172 minutes on the 27th and 78 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 1355 s

  5. 05

    Ruling

    Vyāsa Pūjā, Baoding, 1923: Friday 27 July.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Vyāsa Pūjā 1923 falls on Friday 27 July. Pūrṇimā runs from 07:43 on Fri 27 Jul to 06:32 on Sat 28 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/baoding/festivals/1923/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 27 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 27 Jul
compat-drikpanchangComparison profileFri 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 Angeles15:43 → 14:3204:590 min05:00168 min27 Jul
Chicago18:43 → 17:3205:380 min05:39175 min27 Jul
Jersey City19:43 → 18:3205:460 min05:47174 min27 Jul
Port of Spain19:43 → 18:3205:540 min05:54151 min27 Jul
London00:43 → 23:3205:140 min05:15188 min27 Jul
Durban01:43 → 00:3206:460 min06:45127 min27 Jul
Dubai03:43 → 02:3205:430 min05:43161 min27 Jul
Delhi05:13 → 04:0205:380 min05:39163 min27 Jul
Kolkata05:13 → 04:0205:050 min05:05151 min27 Jul
Singapore06:43 → 05:3206:060 min06:06109 min27 Jul
Sydney09:43 → 08:3206:530 min06:530 min27 Jul
Suva11:43 → 10:3206:360 min06:360 min28 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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