Ruling · Vasantotsava · 2021

Monday 29 March

Determinatein Erbil, under the Rashtriya Panchang method. Clear of every threshold by 487 minutes.

Decide it for

36°11′ N 44°01′ E · Asia/Baghdad · GeoNames 95446

The two sunrises

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

Sunrise of Monday 29 March

Taken. The only sunrise Pratipadā holds at.

05:55 sunrise
04:4305:0705:3105:5506:1906:4307:07

Holds at sunrise

Sunrise of Tuesday 30 March

Pratipadā does not hold at sunrise. Not taken.

05:53 sunrise
04:4105:0505:2905:5306:1706:4107:05

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 21:48 on Sun 28 Mar to 18:25 on Mon 29 Mar.

    2021-03-28T18:48:11Z → 2021-03-29T15:24:45Z

  2. 02

    Kāla

    Sunrise is at 05:55 on the 29th and 05:53 on the 30th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 29th and is not on the 30th.

    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 29200 s

  5. 05

    Ruling

    Vasantotsava, Erbil, 2021: Monday 29 March.

    confidence: determinate

Say it like this

In Erbil, Vasantotsava 2021 falls on Monday 29 March. Pratipadā runs from 21:48 on Sun 28 Mar to 18:25 on Mon 29 Mar and is current at sunrise that day.

ahargana.org/erbil/festivals/2021/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 29 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 29 Mar
compat-drikpanchangComparison profileMon 29 Mar
No institution has a recorded ruling for Erbil.

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 28thCoveredSunrise 29thCoveredRuled
Los Angeles11:48 → 08:2506:45no06:44holds29 Mar
Chicago13:48 → 10:2506:40no06:38holds29 Mar
Jersey City14:48 → 11:2506:46no06:45holds29 Mar
Port of Spain14:48 → 11:2506:06no06:05holds29 Mar
London19:48 → 16:2506:45no06:43holds29 Mar
Durban20:48 → 17:2506:04no06:05holds29 Mar
Dubai22:48 → 19:2506:15no06:14holds29 Mar
Delhi00:18 → 20:5506:16no06:15holds29 Mar
Kolkata00:18 → 20:5505:33no05:32holds29 Mar
Singapore02:48 → 23:2507:06no07:06holds29 Mar
Sydney05:48 → 02:2507:04no07:05holds29 Mar
Suva06:48 → 03:2506:12no06:12no29 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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