Ruling · Vasantotsava · 1921

Thursday 24 March

Determinatein Thāne, under the Rashtriya Panchang method. Clear of every threshold by 291 minutes.

Decide it for

19°12′ N 72°58′ E · Asia/Kolkata · GeoNames 1254661

The two sunrises

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

Sunrise of Thursday 24 March

Taken. The only sunrise Pratipadā holds at.

06:40 sunrise
05:2805:5206:1606:4007:0407:2807:52

Holds at sunrise

Sunrise of Friday 25 March

Pratipadā does not hold at sunrise. Not taken.

06:39 sunrise
05:2705:5106:1506:3907:0307:2707:51

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 01:48 on Thu 24 Mar to 23:49 on Thu 24 Mar.

    1921-03-23T20:18:25Z → 1921-03-24T18:19:28Z

  2. 02

    Kāla

    Sunrise is at 06:40 on the 24th and 06:39 on the 25th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 24th and is not on the 25th.

    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 17487 s

  5. 05

    Ruling

    Vasantotsava, Thāne, 1921: Thursday 24 March.

    confidence: determinate

Say it like this

In Thāne, Vasantotsava 1921 falls on Thursday 24 March. Pratipadā runs from 01:48 on Thu 24 Mar to 23:49 on Thu 24 Mar and is current at sunrise that day.

ahargana.org/thane/festivals/1921/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 24 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 24 Mar
compat-drikpanchangComparison profileThu 24 Mar
No institution has a recorded ruling for Thāne.

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 23rdCoveredSunrise 24thCoveredRuled
Los Angeles12:18 → 10:1905:53no05:52holds24 Mar
Chicago14:18 → 12:1905:50no05:48holds24 Mar
Jersey City15:18 → 13:1905:56no05:54holds24 Mar
Port of Spain16:18 → 14:1906:09no06:08holds24 Mar
London20:18 → 18:1905:58no05:56holds24 Mar
Durban22:18 → 20:1906:01no06:02holds24 Mar
Dubai00:18 → 22:1906:21no06:20holds24 Mar
Delhi01:48 → 23:4906:23no06:22holds24 Mar
Kolkata01:48 → 23:4905:39no05:38holds24 Mar
Singapore03:18 → 01:1906:08no06:08holds24 Mar
Sydney06:18 → 04:1906:00no06:01no24 Mar
Suva08:18 → 06:1906:11no06:11no25 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

About Ahargaṇa