Ruling · Vasantotsava · 2013

Thursday 28 March

Determinatein Puning, under the Rashtriya Panchang method. Clear of every threshold by 563 minutes.

Decide it for

23°19′ N 116°10′ E · Asia/Shanghai · GeoNames 1802940

The two sunrises

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

Sunrise of Wednesday 27 March

Pratipadā does not hold at sunrise. Not taken.

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

Absent at sunrise

Sunrise of Thursday 28 March

Taken. The only sunrise Pratipadā holds at.

06:12 sunrise
05:0005:2405:4806:1206:3607:0007:24

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 Wed 27 Mar to 15:35 on Thu 28 Mar.

    2013-03-27T09:27:18Z → 2013-03-28T07:35:01Z

  2. 02

    Kāla

    Sunrise is at 06:13 on the 27th and 06:12 on the 28th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 27th and is on the 28th.

    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 33780 s

  5. 05

    Ruling

    Vasantotsava, Puning, 2013: Thursday 28 March.

    confidence: determinate

Say it like this

In Puning, Vasantotsava 2013 falls on Thursday 28 March. Pratipadā runs from 17:27 on Wed 27 Mar to 15:35 on Thu 28 Mar and is current at sunrise that day.

ahargana.org/puning/festivals/2013/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 28 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 28 Mar
compat-drikpanchangComparison profileThu 28 Mar
No institution has a recorded ruling for Puning.

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 27thCoveredSunrise 28thCoveredRuled
Los Angeles02:27 → 00:3506:47holds06:46no27 Mar
Chicago04:27 → 02:3506:42holds06:40no27 Mar
Jersey City05:27 → 03:3506:48holds06:46no27 Mar
Port of Spain05:27 → 03:3506:06holds06:06no27 Mar
London09:27 → 07:3505:47no05:45holds28 Mar
Durban11:27 → 09:3506:04no06:04holds28 Mar
Dubai13:27 → 11:3506:16no06:15holds28 Mar
Delhi14:57 → 13:0506:17no06:16holds28 Mar
Kolkata14:57 → 13:0505:34no05:33holds28 Mar
Singapore17:27 → 15:3507:07no07:06holds28 Mar
Sydney20:27 → 18:3507:04no07:04holds28 Mar
Suva21:27 → 19:3506:12no06:12holds28 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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