Ruling · Vyāsa Pūjā · 2019

Tuesday 16 July

Boundaryin Daqing, 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

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 Tuesday 16 July

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

04:02 sunrisethree muhūrtas on 07:08
Pūrṇimā begins 04:18:27
03:3804:2605:1406:0206:5007:38

169 of 185 minutes covered, the last 169

Morning of Wednesday 17 July

Pūrṇimā holds for 95 of 185 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.

04:03 sunrisethree muhūrtas on 07:08
Pūrṇimā ends 05:38:13
03:3904:2705:1506:0306:5107:39

95 of 185 minutes covered, the first 95

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 04:18 on Tue 16 Jul to 05:38 on Wed 17 Jul.

    2019-07-15T20:18:27Z → 2019-07-16T21:38:13Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 04:02–07:08 on the 16th, 04:03–07:08 on the 17th.

    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 169 of 185 minutes on the 16th and 95 of 185 on the 17th.

    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 964 s

  5. 05

    Ruling

    Vyāsa Pūjā, Daqing, 2019: Tuesday 16 July.

    confidence: boundary (absent-unstated)

Say it like this

In Daqing, Vyāsa Pūjā 2019 falls on Tuesday 16 July. Pūrṇimā runs from 04:18 on Tue 16 Jul to 05:38 on Wed 17 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/daqing/festivals/2019/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 16 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 16 Jul
compat-drikpanchangComparison profileTue 16 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 15thCoveredSunrise 16thCoveredRuled
Los Angeles13:18 → 14:3805:530 min05:54170 min16 Jul
Chicago15:18 → 16:3805:290 min05:30179 min16 Jul
Jersey City16:18 → 17:3805:380 min05:39177 min16 Jul
Port of Spain16:18 → 17:3805:520 min05:52152 min16 Jul
London21:18 → 22:3805:010 min05:02194 min16 Jul
Durban22:18 → 23:3806:500 min06:50125 min16 Jul
Dubai00:18 → 01:3805:380 min05:39162 min16 Jul
Delhi01:48 → 03:0805:330 min05:34165 min16 Jul
Kolkata01:48 → 03:0805:010 min05:01160 min16 Jul
Singapore04:18 → 05:3807:050 min07:05146 min16 Jul
Sydney06:18 → 07:3806:590 min06:58121 min16 Jul
Suva08:18 → 09:3806:380 min06:3834 min17 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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