Ruling · Vasantotsava · 1925

Wednesday 11 March

Determinatein Riyadh, under the Rashtriya Panchang method. Clear of every threshold by 672 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 Tuesday 10 March

Pratipadā does not hold at sunrise. Not taken.

06:14 sunrise
05:0205:2605:5006:1406:3807:0207:26

Absent at sunrise

Sunrise of Wednesday 11 March

Taken. The only sunrise Pratipadā holds at.

06:13 sunrise
05:0105:2505:4906:1306:3707:0107:25

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 17:27 on Tue 10 Mar to 17:25 on Wed 11 Mar.

    1925-03-10T14:20:43Z → 1925-03-11T14:19:10Z

  2. 02

    Kāla

    Sunrise is at 06:14 on the 10th and 06:13 on the 11th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 10th and is on the 11th.

    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 40313 s

  5. 05

    Ruling

    Vasantotsava, Riyadh, 1925: Wednesday 11 March.

    confidence: determinate

Say it like this

In Riyadh, Vasantotsava 1925 falls on Wednesday 11 March. Pratipadā runs from 17:27 on Tue 10 Mar to 17:25 on Wed 11 Mar and is current at sunrise that day.

ahargana.org/riyadh/festivals/1925/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 11 Mar
compat-drikpanchangComparison profileWed 11 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 10thCoveredSunrise 11thCoveredRuled
Los Angeles06:21 → 06:1906:11no06:10holds11 Mar
Chicago08:21 → 08:1906:12no06:10holds11 Mar
Jersey City09:21 → 09:1906:17no06:16holds11 Mar
Port of Spain10:21 → 10:1906:17no06:16holds11 Mar
London14:21 → 14:1906:28no06:25holds11 Mar
Durban16:21 → 16:1905:53no05:54holds11 Mar
Dubai18:21 → 18:1906:34no06:33holds11 Mar
Delhi19:51 → 19:4906:38no06:37holds11 Mar
Kolkata19:51 → 19:4905:51no05:50holds11 Mar
Singapore21:21 → 21:1906:13no06:12holds11 Mar
Sydney00:21 → 00:1905:50no05:51holds11 Mar
Suva02:21 → 02:1906:08no06:08holds11 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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