Ruling · Vyāsa Pūjā · 2011

Thursday 14 July

Boundaryin Luanda, 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

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two mornings

One ghaṭī is 24 minutes. The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas.

Morning of Thursday 14 July

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

06:24 sunrisethree muhūrtas on 08:43
Pūrṇimā begins 08:14:47
06:0006:2406:4807:1207:3608:0008:2408:4809:12

29 of 140 minutes covered, the last 29

Morning of Friday 15 July

Pūrṇimā holds for 76 of 140 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.

06:24 sunrisethree muhūrtas on 08:43
Pūrṇimā ends 07:39:36
06:0006:2406:4807:1207:3608:0008:2408:4809:12

76 of 140 minutes covered, the first 76

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 08:15 on Thu 14 Jul to 07:40 on Fri 15 Jul.

    2011-07-14T07:14:48Z → 2011-07-15T06:39:37Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:24–08:43 on the 14th, 06:24–08:43 on the 15th.

    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 29 of 140 minutes on the 14th and 76 of 140 on the 15th.

    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 1715 s

  5. 05

    Ruling

    Vyāsa Pūjā, Luanda, 2011: Thursday 14 July.

    confidence: boundary (absent-unstated)

Say it like this

In Luanda, Vyāsa Pūjā 2011 falls on Thursday 14 July. Pūrṇimā runs from 08:15 on Thu 14 Jul to 07:40 on Fri 15 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/luanda/festivals/2011/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 14 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 14 Jul
compat-drikpanchangComparison profileThu 14 Jul
No institution has a recorded ruling for Luanda.

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 14thCoveredSunrise 15thCoveredRuled
Los Angeles00:15 → 23:4005:52171 min05:530 min14 Jul
Chicago02:15 → 01:4005:28179 min05:290 min14 Jul
Jersey City03:15 → 02:4005:37178 min05:380 min14 Jul
Port of Spain03:15 → 02:4005:51152 min05:520 min14 Jul
London08:15 → 07:4005:000 min05:01159 min14 Jul
Durban09:15 → 08:4006:510 min06:50109 min14 Jul
Dubai11:15 → 10:4005:380 min05:38163 min15 Jul
Delhi12:45 → 12:1005:330 min05:33166 min15 Jul
Kolkata12:45 → 12:1005:000 min05:01161 min15 Jul
Singapore15:15 → 14:4007:050 min07:05146 min15 Jul
Sydney17:15 → 16:4006:590 min06:59121 min15 Jul
Suva19:15 → 18:4006:390 min06:38134 min15 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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