Ruling · Vyāsa Pūjā · 1951

Wednesday 18 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 Wednesday 18 July

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

05:07 sunrisethree muhūrtas on 08:02
Pūrṇimā begins 07:02:33
04:4305:0705:3105:5506:1906:4307:0707:3107:5508:19

59 of 175 minutes covered, the last 59

Morning of Thursday 19 July

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

05:07 sunrisethree muhūrtas on 08:02
04:4305:0705:3105:5506:1906:4307:0707:3107:5508:19

0 of 175 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 07:03 on Wed 18 Jul to 03:17 on Thu 19 Jul.

    1951-07-17T23:02:34Z → 1951-07-18T19:17:22Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:07–08:02 on the 18th, 05:07–08:02 on the 19th.

    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 59 of 175 minutes on the 18th and 0 of 175 on the 19th.

    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 3539 s

  5. 05

    Ruling

    Vyāsa Pūjā, Baoding, 1951: Wednesday 18 July.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Vyāsa Pūjā 1951 falls on Wednesday 18 July. Pūrṇimā runs from 07:03 on Wed 18 Jul to 03:17 on Thu 19 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/baoding/festivals/1951/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 Jul
Ahargaṇa, classicalDisc centre, no refractionWed 18 Jul
compat-drikpanchangComparison profileWed 18 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 17thCoveredSunrise 18thCoveredRuled
Los Angeles16:03 → 12:1705:540 min05:54170 min18 Jul
Chicago18:03 → 14:1705:300 min05:31178 min18 Jul
Jersey City19:03 → 15:1705:390 min05:40177 min18 Jul
Port of Spain19:03 → 15:1705:520 min05:52152 min18 Jul
London00:03 → 20:1705:020 min05:04193 min18 Jul
Durban01:03 → 21:1706:500 min06:49125 min18 Jul
Dubai03:03 → 23:1705:390 min05:39162 min18 Jul
Delhi04:33 → 00:4705:340 min05:34165 min18 Jul
Kolkata04:33 → 00:4705:010 min05:02160 min18 Jul
Singapore06:33 → 02:4706:350 min06:35146 min18 Jul
Sydney09:03 → 05:1706:580 min06:570 min18 Jul
Suva11:03 → 07:1706:380 min06:380 min18 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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