Ruling · Vasantotsava · 2000

Tuesday 21 March

Determinatein Thāne, under the Rashtriya Panchang method. Clear of every threshold by 160 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 Monday 20 March

Pratipadā does not hold at sunrise. Not taken.

06:42 sunrise
05:3005:5406:1806:4207:0607:3007:54

Absent at sunrise

Sunrise of Tuesday 21 March

Taken. The only sunrise Pratipadā holds at.

06:42 sunrise
05:3005:5406:1806:4207:0607:3007:54

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 10:14 on Mon 20 Mar to 09:22 on Tue 21 Mar.

    2000-03-20T04:44:21Z → 2000-03-21T03:52:01Z

  2. 02

    Kāla

    Sunrise is at 06:42 on the 20th and 06:42 on the 21st.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 20th and is on the 21st.

    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 9623 s

  5. 05

    Ruling

    Vasantotsava, Thāne, 2000: Tuesday 21 March.

    confidence: determinate

Say it like this

In Thāne, Vasantotsava 2000 falls on Tuesday 21 March. Pratipadā runs from 10:14 on Mon 20 Mar to 09:22 on Tue 21 Mar and is current at sunrise that day.

ahargana.org/thane/festivals/2000/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 21 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 21 Mar
compat-drikpanchangComparison profileTue 21 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 20thCoveredSunrise 21stCoveredRuled
Los Angeles20:44 → 19:5205:56holds05:55no20 Mar
Chicago22:44 → 21:5205:54holds05:52no20 Mar
Jersey City23:44 → 22:5205:59holds05:58no20 Mar
Port of Spain00:44 → 23:5206:10holds06:10no20 Mar
London04:44 → 03:5206:03holds06:01no20 Mar
Durban06:44 → 05:5206:00no06:00no20 Mar
Dubai08:44 → 07:5206:23no06:22holds21 Mar
Delhi10:14 → 09:2206:25no06:24holds21 Mar
Kolkata10:14 → 09:2205:41no05:40holds21 Mar
Singapore12:44 → 11:5207:09no07:09holds21 Mar
Sydney15:44 → 14:5206:58no06:59holds21 Mar
Suva16:44 → 15:5206:10no06:11holds21 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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