Ruling · Vyāsa Pūjā · 2052

Friday 12 July

Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 0 min 00 s away. Say “contested”.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

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

Pūrṇimā holds for 0 of 187 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.

03:59 sunrisethree muhūrtas on 07:05
Pūrṇimā begins 07:05:29
03:3504:2305:1105:5906:4707:35

0 of 187 minutes covered

Morning of Friday 12 July

Taken. The only morning Pūrṇimā reaches.

04:00 sunrisethree muhūrtas on 07:06
03:3604:2405:1206:0006:4807:36

186 of 186 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 07:05 on Thu 11 Jul to 08:23 on Fri 12 Jul.

    2052-07-10T23:05:30Z → 2052-07-12T00:23:21Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 03:59–07:05 on the 11th, 04:00–07:06 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 0 of 187 minutes on the 11th and 186 of 186 on the 12th.

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

  4. 04

    Tie-break

    Only one morning qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 0 s < 300 s

  5. 05

    Ruling

    Vyāsa Pūjā, Daqing, 2052: Friday 12 July.

    confidence: boundary (margin)

Say it like this

In Daqing, Vyāsa Pūjā 2052 falls on Friday 12 July. Pūrṇimā runs from 07:05 on Thu 11 Jul to 08:23 on Fri 12 Jul and covers all of the first three muhūrtas after sunrise that morning. It is 0 min 00 s from a threshold: treat the date as contested.

ahargana.org/daqing/festivals/2052/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 12 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 12 Jul
compat-drikpanchangComparison profileFri 12 Jul
No institution has a recorded ruling for Daqing.

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 12thCoveredRuled
Los Angeles16:05 → 17:2305:510 min05:520 min11 Jul
Chicago18:05 → 19:2305:260 min05:280 min11 Jul
Jersey City19:05 → 20:2305:350 min05:370 min11 Jul
Port of Spain19:05 → 20:2305:510 min05:510 min11 Jul
London00:05 → 01:2304:570 min04:590 min11 Jul
Durban01:05 → 02:2306:510 min06:510 min11 Jul
Dubai03:05 → 04:2305:370 min05:370 min11 Jul
Delhi04:35 → 05:5305:310 min05:3221 min11 Jul
Kolkata04:35 → 05:5304:590 min05:0053 min11 Jul
Singapore07:05 → 08:2307:050 min07:0578 min11 Jul
Sydney09:05 → 10:2307:000 min06:59121 min12 Jul
Suva11:05 → 12:2306:390 min06:39133 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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