Ruling · Vasantotsava · 2023

Wednesday 8 March

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 583 minutes.

Decide it for

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

The two sunrises

One ghaṭī is 24 minutes. The sunrise is read as upper limb, 31′ + 16′.

Sunrise of Tuesday 7 March

Pratipadā does not hold at sunrise. Not taken.

06:27 sunrise
05:1505:3906:0306:2706:5107:1507:39

Absent at sunrise

Sunrise of Wednesday 8 March

Taken. The only sunrise Pratipadā holds at.

06:26 sunrise
05:1405:3806:0206:2606:5007:1407:38

Holds at sunrise

Pratipadā presentSunrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 16:10 on Tue 7 Mar to 17:43 on Wed 8 Mar.

    2023-03-07T12:40:22Z → 2023-03-08T14:13:09Z

  2. 02

    Kāla

    Sunrise is at 06:27 on the 7th and 06:26 on the 8th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 7th and is on the 8th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one sunrise qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 34989 s

  5. 05

    Ruling

    Vasantotsava, Tehran, 2023: Wednesday 8 March.

    confidence: determinate

Say it like this

In Tehran, Vasantotsava 2023 falls on Wednesday 8 March. Pratipadā runs from 16:10 on Tue 7 Mar to 17:43 on Wed 8 Mar and is current at sunrise that day.

ahargana.org/tehran/festivals/2023/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 8 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 8 Mar
compat-drikpanchangComparison profileWed 8 Mar
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/vasantotsava · ruleset 2026.3-draft

Month
Phālguna, amānta
Pakṣa · aṅga
Kṛṣṇa · Pratipadā
Kāla
Sunrise
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāSunrise 7thCoveredSunrise 8thCoveredRuled
Los Angeles04:40 → 06:1306:14holds06:13holds7 Mar
Chicago06:40 → 08:1306:16no06:15holds8 Mar
Jersey City07:40 → 09:1306:21no06:20holds8 Mar
Port of Spain08:40 → 10:1306:18no06:17holds8 Mar
London12:40 → 14:1306:34no06:31holds8 Mar
Durban14:40 → 16:1305:51no05:52holds8 Mar
Dubai16:40 → 18:1306:37no06:36holds8 Mar
Delhi18:10 → 19:4306:41no06:40holds8 Mar
Kolkata18:10 → 19:4305:53no05:53holds8 Mar
Singapore20:40 → 22:1307:13no07:13holds8 Mar
Sydney23:40 → 01:1306:48no06:48holds8 Mar
Suva00:40 → 02:1306:07no06:07holds8 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vasantotsava@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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