Ruling · Vasantotsava · 2057

Wednesday 21 March

Determinatein Riyadh, under the Rashtriya Panchang method. Clear of every threshold by 131 minutes.

Decide it for

24°41′ N 46°43′ E · Asia/Riyadh · GeoNames 108410

The two sunrises

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

Sunrise of Wednesday 21 March

Taken. The only sunrise Pratipadā holds at.

05:56 sunrise
04:4405:0805:3205:5606:2006:4407:08

Holds at sunrise

Sunrise of Thursday 22 March

Pratipadā does not hold at sunrise. Not taken.

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

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 03:45 on Wed 21 Mar to 01:32 on Thu 22 Mar.

    2057-03-21T00:45:18Z → 2057-03-21T22:31:49Z

  2. 02

    Kāla

    Sunrise is at 05:56 on the 21st and 05:55 on the 22nd.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 21st and is not on the 22nd.

    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 7850 s

  5. 05

    Ruling

    Vasantotsava, Riyadh, 2057: Wednesday 21 March.

    confidence: determinate

Say it like this

In Riyadh, Vasantotsava 2057 falls on Wednesday 21 March. Pratipadā runs from 03:45 on Wed 21 Mar to 01:32 on Thu 22 Mar and is current at sunrise that day.

ahargana.org/riyadh/festivals/2057/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 21 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 21 Mar
compat-drikpanchangComparison profileWed 21 Mar
No institution has a recorded ruling for Riyadh.

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 21stCoveredSunrise 22ndCoveredRuled
Los Angeles17:45 → 15:3206:55holds06:53no21 Mar
Chicago19:45 → 17:3206:52holds06:50no21 Mar
Jersey City20:45 → 18:3206:57holds06:56no21 Mar
Port of Spain20:45 → 18:3206:10holds06:09no21 Mar
London00:45 → 22:3206:00holds05:58no21 Mar
Durban02:45 → 00:3206:00holds06:01no21 Mar
Dubai04:45 → 02:3206:22holds06:21no21 Mar
Delhi06:15 → 04:0206:24holds06:23no21 Mar
Kolkata06:15 → 04:0205:40no05:39no21 Mar
Singapore08:45 → 06:3207:09no07:08no21 Mar
Sydney11:45 → 09:3206:59no07:00holds22 Mar
Suva12:45 → 10:3206:11no06:11holds22 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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