Ruling · Vyāsa Pūjā · 1979

Monday 9 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 Monday 9 July

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

05:01 sunrisethree muhūrtas on 07:58
Pūrṇimā begins 07:01:11
04:3705:0105:2505:4906:1306:3707:0107:2507:4908:13

56 of 177 minutes covered, the last 56

Morning of Tuesday 10 July

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

05:01 sunrisethree muhūrtas on 07:58
04:3705:0105:2505:4906:1306:3707:0107:2507:4908:13

0 of 177 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 07:01 on Mon 9 Jul to 03:59 on Tue 10 Jul.

    1979-07-08T23:01:12Z → 1979-07-09T19:59:15Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:01–07:58 on the 9th, 05:01–07:58 on the 10th.

    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 56 of 177 minutes on the 9th and 0 of 177 on the 10th.

    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 3382 s

  5. 05

    Ruling

    Vyāsa Pūjā, Baoding, 1979: Monday 9 July.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Vyāsa Pūjā 1979 falls on Monday 9 July. Pūrṇimā runs from 07:01 on Mon 9 Jul to 03:59 on Tue 10 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/baoding/festivals/1979/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 9 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 9 Jul
compat-drikpanchangComparison profileMon 9 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 8thCoveredSunrise 9thCoveredRuled
Los Angeles16:01 → 12:5905:490 min05:49172 min9 Jul
Chicago18:01 → 14:5905:230 min05:24181 min9 Jul
Jersey City19:01 → 15:5905:330 min05:33179 min9 Jul
Port of Spain19:01 → 15:5905:500 min05:50153 min9 Jul
London00:01 → 20:5904:530 min04:54197 min9 Jul
Durban01:01 → 21:5906:520 min06:52124 min9 Jul
Dubai03:01 → 23:5905:350 min05:35163 min9 Jul
Delhi04:31 → 01:2905:290 min05:30166 min9 Jul
Kolkata04:31 → 01:2904:580 min04:58161 min9 Jul
Singapore06:31 → 03:2906:340 min06:34146 min9 Jul
Sydney09:01 → 05:5907:010 min07:000 min9 Jul
Suva11:01 → 07:5906:390 min06:390 min9 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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