Ruling · Vasantotsava · 2074

Wednesday 14 March

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 192 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 13 March

Pratipadā does not hold at sunrise. Not taken.

06:18 sunrise
05:0605:3005:5406:1806:4207:0607:30

Absent at sunrise

Sunrise of Wednesday 14 March

Taken. The only sunrise Pratipadā holds at.

06:17 sunrise
05:0505:2905:5306:1706:4107:0507:29

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 12:32 on Tue 13 Mar to 09:29 on Wed 14 Mar.

    2074-03-13T09:02:08Z → 2074-03-14T05:59:13Z

  2. 02

    Kāla

    Sunrise is at 06:18 on the 13th and 06:17 on the 14th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 13th and is on the 14th.

    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 11549 s

  5. 05

    Ruling

    Vasantotsava, Tehran, 2074: Wednesday 14 March.

    confidence: determinate

Say it like this

In Tehran, Vasantotsava 2074 falls on Wednesday 14 March. Pratipadā runs from 12:32 on Tue 13 Mar to 09:29 on Wed 14 Mar and is current at sunrise that day.

ahargana.org/tehran/festivals/2074/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 14 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 14 Mar
compat-drikpanchangComparison profileWed 14 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 13thCoveredSunrise 14thCoveredRuled
Los Angeles02:02 → 22:5907:06holds07:04no13 Mar
Chicago04:02 → 00:5907:05holds07:04no13 Mar
Jersey City05:02 → 01:5907:11holds07:09no13 Mar
Port of Spain05:02 → 01:5906:14holds06:14no13 Mar
London09:02 → 05:5906:19no06:17no13 Mar
Durban11:02 → 07:5905:55no05:56holds14 Mar
Dubai13:02 → 09:5906:30no06:29holds14 Mar
Delhi14:32 → 11:2906:33no06:32holds14 Mar
Kolkata14:32 → 11:2905:48no05:47holds14 Mar
Singapore17:02 → 13:5907:11no07:11holds14 Mar
Sydney20:02 → 16:5906:53no06:54holds14 Mar
Suva21:02 → 17:5906:09no06:09holds14 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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