Ruling · Vasantotsava · 2034

Sunday 5 March

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 47 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 Sunday 5 March

Taken. Both sunrises qualify; the rule takes the first.

06:29 sunrise
Pratipadā begins 05:40:11
05:1705:4106:0506:2906:5307:1707:41

Holds at sunrise

Sunrise of Monday 6 March

Pratipadā holds at sunrise here too. Not taken.

06:28 sunrise
Pratipadā ends 07:14:58
05:1605:4006:0406:2806:5207:1607:40

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 05:40 on Sun 5 Mar to 07:15 on Mon 6 Mar.

    2034-03-05T02:10:11Z → 2034-03-06T03:44:59Z

  2. 02

    Kāla

    Sunrise is at 06:29 on the 5th and 06:28 on the 6th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 5th and is on the 6th.

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

  4. 04

    Tie-break

    Both sunrises qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 2812 s

  5. 05

    Ruling

    Vasantotsava, Tehran, 2034: Sunday 5 March.

    confidence: determinate

Say it like this

In Tehran, Vasantotsava 2034 falls on Sunday 5 March. Pratipadā runs from 05:40 on Sun 5 Mar to 07:15 on Mon 6 Mar and is current at sunrise that day.

ahargana.org/tehran/festivals/2034/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Mar
Ahargaṇa, classicalDisc centre, no refractionSun 5 Mar
compat-drikpanchangComparison profileSun 5 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 5thCoveredSunrise 6thCoveredRuled
Los Angeles18:10 → 19:4506:17holds06:15no5 Mar
Chicago20:10 → 21:4506:19holds06:17no5 Mar
Jersey City21:10 → 22:4506:24holds06:23no5 Mar
Port of Spain22:10 → 23:4506:19holds06:18no5 Mar
London02:10 → 03:4506:37holds06:35no5 Mar
Durban04:10 → 05:4505:50holds05:50no5 Mar
Dubai06:10 → 07:4506:38holds06:37holds5 Mar
Delhi07:40 → 09:1506:42no06:41holds6 Mar
Kolkata07:40 → 09:1505:55no05:54holds6 Mar
Singapore10:10 → 11:4507:14no07:13holds6 Mar
Sydney13:10 → 14:4506:46no06:47holds6 Mar
Suva14:10 → 15:4506:06no06:07holds6 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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