Ruling · Vyāsa Pūjā · 2039

Tuesday 5 July

Boundaryin Tehran, 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

35°42′ N 51°25′ E · Asia/Tehran · GeoNames 112931

The two mornings

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

Morning of Tuesday 5 July

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

04:54 sunrisethree muhūrtas on 07:48
04:3004:5405:1805:4206:0606:3006:5407:1807:4208:06

0 of 174 minutes covered

Morning of Wednesday 6 July

Pūrṇimā holds for 39 of 174 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.

04:55 sunrisethree muhūrtas on 07:48
Pūrṇimā ends 05:33:32
04:3104:5505:1905:4306:0706:3106:5507:1907:4308:07

39 of 174 minutes covered, the first 39

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 09:01 on Tue 5 Jul to 05:34 on Wed 6 Jul.

    2039-07-05T05:31:10Z → 2039-07-06T02:03:33Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 04:54–07:48 on the 5th, 04:55–07:48 on the 6th.

    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 0 of 174 minutes on the 5th and 39 of 174 on the 6th.

    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 2331 s

  5. 05

    Ruling

    Vyāsa Pūjā, Tehran, 2039: Tuesday 5 July.

    confidence: boundary (absent-unstated)

Say it like this

In Tehran, Vyāsa Pūjā 2039 falls on Tuesday 5 July. Pūrṇimā runs from 09:01 on Tue 5 Jul to 05:34 on Wed 6 Jul, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/tehran/festivals/2039/vyasa-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 5 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 5 Jul
compat-drikpanchangComparison profileTue 5 Jul
No institution has a recorded ruling for Tehran.

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 5thCoveredSunrise 6thCoveredRuled
Los Angeles22:31 → 19:0405:47172 min05:480 min5 Jul
Chicago00:31 → 21:0405:22181 min05:230 min5 Jul
Jersey City01:31 → 22:0405:31180 min05:320 min5 Jul
Port of Spain01:31 → 22:0405:49153 min05:490 min5 Jul
London06:31 → 03:0404:5197 min04:520 min5 Jul
Durban07:31 → 04:0406:5284 min06:520 min5 Jul
Dubai09:31 → 06:0405:340 min05:3529 min5 Jul
Delhi11:01 → 07:3405:290 min05:29125 min5 Jul
Kolkata11:01 → 07:3404:570 min04:57156 min5 Jul
Singapore13:31 → 10:0407:040 min07:04146 min6 Jul
Sydney15:31 → 12:0407:010 min07:01120 min6 Jul
Suva17:31 → 14:0406:390 min06:39133 min6 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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