Ruling · Vyāsa Pūjā · 1990

Sunday 8 July

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 4 min 41 s away. 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 Saturday 7 July

Pūrṇimā holds for 5 of 177 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.

06:00 sunrisethree muhūrtas on 08:57
Pūrṇimā begins 08:52:13
05:3606:0006:2406:4807:1207:3608:0008:2408:4809:12

5 of 177 minutes covered, the last 5

Morning of Sunday 8 July

Taken. The only morning Pūrṇimā reaches.

06:00 sunrisethree muhūrtas on 08:57
05:3606:0006:2406:4807:1207:3608:0008:2408:4809:12

177 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 08:52 on Sat 7 Jul to 10:23 on Sun 8 Jul.

    1990-07-06T23:52:14Z → 1990-07-08T01:23:29Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:00–08:57 on the 7th, 06:00–08:57 on the 8th.

    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 5 of 177 minutes on the 7th and 177 of 177 on the 8th.

    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 281 s < 300 s

  5. 05

    Ruling

    Vyāsa Pūjā, Baoding, 1990: Sunday 8 July.

    confidence: boundary (margin)

Say it like this

In Baoding, Vyāsa Pūjā 1990 falls on Sunday 8 July. Pūrṇimā runs from 08:52 on Sat 7 Jul to 10:23 on Sun 8 Jul and covers all of the first three muhūrtas after sunrise that morning. It is 4 min 41 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1990/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 8 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 8 Jul
compat-drikpanchangComparison profileSun 8 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 6thCoveredSunrise 8thCoveredRuled
Los Angeles16:52 → 18:2305:480 min05:490 min7 Jul
Chicago18:52 → 20:2305:220 min05:240 min7 Jul
Jersey City19:52 → 21:2305:320 min05:330 min7 Jul
Port of Spain19:52 → 21:2305:490 min05:500 min7 Jul
London00:52 → 02:2304:520 min04:530 min7 Jul
Durban01:52 → 03:2306:520 min06:520 min7 Jul
Dubai03:52 → 05:2305:340 min05:350 min7 Jul
Delhi05:22 → 06:5305:290 min05:3084 min7 Jul
Kolkata05:22 → 06:5304:570 min04:58115 min7 Jul
Singapore07:52 → 09:2307:040 min07:04139 min7 Jul
Sydney09:52 → 11:2307:010 min07:01120 min8 Jul
Suva11:52 → 13:2306:390 min06:39133 min8 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

About Ahargaṇa