Ruling · Vasantotsava · 2009

Thursday 12 March

Determinatein Daegu, under the Rashtriya Panchang method. Clear of every threshold by 200 minutes.

Decide it for

35°52′ N 128°36′ E · Asia/Seoul · GeoNames 1835329

The two sunrises

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

Sunrise of Wednesday 11 March

Pratipadā does not hold at sunrise. Not taken.

06:43 sunrise
05:3105:5506:1906:4307:0707:3107:55

Absent at sunrise

Sunrise of Thursday 12 March

Taken. The only sunrise Pratipadā holds at.

06:41 sunrise
05:2905:5306:1706:4107:0507:2907:53

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 11:38 on Wed 11 Mar to 10:02 on Thu 12 Mar.

    2009-03-11T02:37:44Z → 2009-03-12T01:01:38Z

  2. 02

    Kāla

    Sunrise is at 06:43 on the 11th and 06:41 on the 12th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 11th and is on the 12th.

    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 12013 s

  5. 05

    Ruling

    Vasantotsava, Daegu, 2009: Thursday 12 March.

    confidence: determinate

Say it like this

In Daegu, Vasantotsava 2009 falls on Thursday 12 March. Pratipadā runs from 11:38 on Wed 11 Mar to 10:02 on Thu 12 Mar and is current at sunrise that day.

ahargana.org/daegu/festivals/2009/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 12 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 12 Mar
compat-drikpanchangComparison profileThu 12 Mar
No institution has a recorded ruling for Daegu.

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 11thCoveredSunrise 12thCoveredRuled
Los Angeles19:38 → 18:0207:09holds07:07no11 Mar
Chicago21:38 → 20:0207:09holds07:07no11 Mar
Jersey City22:38 → 21:0207:14holds07:13no11 Mar
Port of Spain22:38 → 21:0206:16holds06:15no11 Mar
London02:38 → 01:0206:24holds06:22no11 Mar
Durban04:38 → 03:0205:54holds05:55no11 Mar
Dubai06:38 → 05:0206:32no06:31no11 Mar
Delhi08:08 → 06:3206:36no06:35no11 Mar
Kolkata08:08 → 06:3205:49no05:49holds12 Mar
Singapore10:38 → 09:0207:12no07:12holds12 Mar
Sydney13:38 → 12:0206:51no06:52holds12 Mar
Suva14:38 → 13:0206:08no06:08holds12 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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