Ruling · Vasantotsava · 2006

Wednesday 15 March

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 46 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 Wednesday 15 March

Taken. The only sunrise Pratipadā holds at.

06:16 sunrise
05:0405:2805:5206:1606:4007:0407:28

Holds at sunrise

Sunrise of Thursday 16 March

Pratipadā does not hold at sunrise. Not taken.

06:15 sunrise
Pratipadā ends 05:28:07
05:0305:2705:5106:1506:3907:0307:27

Absent 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 03:05 on Wed 15 Mar to 05:28 on Thu 16 Mar.

    2006-03-14T23:35:26Z → 2006-03-16T01:58:07Z

  2. 02

    Kāla

    Sunrise is at 06:16 on the 15th and 06:15 on the 16th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 15th and is not on the 16th.

    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 2784 s

  5. 05

    Ruling

    Vasantotsava, Tehran, 2006: Wednesday 15 March.

    confidence: determinate

Say it like this

In Tehran, Vasantotsava 2006 falls on Wednesday 15 March. Pratipadā runs from 03:05 on Wed 15 Mar to 05:28 on Thu 16 Mar and is current at sunrise that day.

ahargana.org/tehran/festivals/2006/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 15 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 15 Mar
compat-drikpanchangComparison profileWed 15 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 14thCoveredSunrise 16thCoveredRuled
Los Angeles15:35 → 17:5806:05no06:02no15 Mar
Chicago17:35 → 19:5806:05no06:01no15 Mar
Jersey City18:35 → 20:5806:10no06:07no15 Mar
Port of Spain19:35 → 21:5806:14no06:13no15 Mar
London23:35 → 01:5806:18no06:13no15 Mar
Durban01:35 → 03:5805:56no05:57no15 Mar
Dubai03:35 → 05:5806:30no06:28no15 Mar
Delhi05:05 → 07:2806:33no06:30holds15 Mar
Kolkata05:05 → 07:2805:47no05:45holds15 Mar
Singapore07:35 → 09:5807:11no07:10holds16 Mar
Sydney10:35 → 12:5806:53no06:55holds16 Mar
Suva11:35 → 13:5806:09no06:09holds16 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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