Ruling · Vyāsa Pūjā · 1957

Thursday 11 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 11 July

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

05:02 sunrisethree muhūrtas on 07:59
Pūrṇimā begins 05:41:52
04:3805:0205:2605:5006:1406:3807:0207:2607:5008:14

137 of 177 minutes covered, the last 137

Morning of Friday 12 July

Pūrṇimā holds for 107 of 176 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.

05:03 sunrisethree muhūrtas on 07:59
Pūrṇimā ends 06:49:41
04:3905:0305:2705:5106:1506:3907:0307:2707:5108:15

107 of 176 minutes covered, the first 107

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 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul.

    1957-07-10T21:41:52Z → 1957-07-11T22:49:41Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:02–07:59 on the 11th, 05:03–07:59 on the 12th.

    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 137 of 177 minutes on the 11th and 107 of 176 on the 12th.

    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 2392 s

  5. 05

    Ruling

    Vyāsa Pūjā, Baoding, 1957: Thursday 11 July.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Vyāsa Pūjā 1957 falls on Thursday 11 July. Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/baoding/festivals/1957/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 11 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 11 Jul
compat-drikpanchangComparison profileThu 11 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 10thCoveredSunrise 11thCoveredRuled
Los Angeles14:42 → 15:5005:500 min05:50171 min11 Jul
Chicago16:42 → 17:5005:250 min05:26180 min11 Jul
Jersey City17:42 → 18:5005:340 min05:35179 min11 Jul
Port of Spain17:42 → 18:5005:500 min05:50152 min11 Jul
London22:42 → 23:5004:550 min04:56196 min11 Jul
Durban23:42 → 00:5006:510 min06:51124 min11 Jul
Dubai01:42 → 02:5005:360 min05:36163 min11 Jul
Delhi03:12 → 04:2005:300 min05:31166 min11 Jul
Kolkata03:12 → 04:2004:590 min04:59161 min11 Jul
Singapore05:12 → 06:2006:340 min06:34146 min11 Jul
Sydney07:42 → 08:5007:000 min07:0078 min11 Jul
Suva09:42 → 10:5006:390 min06:390 min12 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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