Ruling · Vyāsa Pūjā · 2031

Friday 4 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 4 July

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

04:58 sunrisethree muhūrtas on 07:56
Pūrṇimā begins 06:52:15
04:3404:5805:2205:4606:1006:3406:5807:2207:4608:10

64 of 178 minutes covered, the last 64

Morning of Saturday 5 July

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

04:59 sunrisethree muhūrtas on 07:56
04:3504:5905:2305:4706:1106:3506:5907:2307:4708:11

0 of 178 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 06:52 on Fri 4 Jul to 03:01 on Sat 5 Jul.

    2031-07-03T22:52:15Z → 2031-07-04T19:01:23Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 04:58–07:56 on the 4th, 04:59–07:56 on the 5th.

    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 64 of 178 minutes on the 4th and 0 of 178 on the 5th.

    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 3816 s

  5. 05

    Ruling

    Vyāsa Pūjā, Baoding, 2031: Friday 4 July.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Vyāsa Pūjā 2031 falls on Friday 4 July. Pūrṇimā runs from 06:52 on Fri 4 Jul to 03:01 on Sat 5 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/baoding/festivals/2031/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 4 Jul
compat-drikpanchangComparison profileFri 4 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 3rdCoveredSunrise 4thCoveredRuled
Los Angeles15:52 → 12:0105:460 min05:47172 min4 Jul
Chicago17:52 → 14:0105:210 min05:21181 min4 Jul
Jersey City18:52 → 15:0105:300 min05:31180 min4 Jul
Port of Spain18:52 → 15:0105:490 min05:49153 min4 Jul
London23:52 → 20:0104:490 min04:50198 min4 Jul
Durban00:52 → 21:0106:520 min06:52123 min4 Jul
Dubai02:52 → 23:0105:330 min05:34164 min4 Jul
Delhi04:22 → 00:3105:280 min05:28167 min4 Jul
Kolkata04:22 → 00:3104:560 min04:57162 min4 Jul
Singapore06:52 → 03:0107:030 min07:03146 min4 Jul
Sydney08:52 → 05:0107:010 min07:018 min4 Jul
Suva10:52 → 07:0106:390 min06:390 min4 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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