Ruling · Vasantotsava · 1908

Thursday 19 March

Determinatein Davao, under the Rashtriya Panchang method. Clear of every threshold by 285 minutes.

Decide it for

7°04′ N 125°37′ E · Asia/Manila · GeoNames 1715348

The two sunrises

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

Sunrise of Wednesday 18 March

Pratipadā does not hold at sunrise. Not taken.

05:43 sunrise
04:3104:5505:1905:4306:0706:3106:55

Absent at sunrise

Sunrise of Thursday 19 March

Taken. The only sunrise Pratipadā holds at.

05:43 sunrise
04:3104:5505:1905:4306:0706:3106:55

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 10:28 on Wed 18 Mar to 11:29 on Thu 19 Mar.

    1908-03-18T02:28:17Z → 1908-03-19T03:29:29Z

  2. 02

    Kāla

    Sunrise is at 05:43 on the 18th and 05:43 on the 19th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 18th and is on the 19th.

    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 17090 s

  5. 05

    Ruling

    Vasantotsava, Davao, 1908: Thursday 19 March.

    confidence: determinate

Say it like this

In Davao, Vasantotsava 1908 falls on Thursday 19 March. Pratipadā runs from 10:28 on Wed 18 Mar to 11:29 on Thu 19 Mar and is current at sunrise that day.

ahargana.org/davao/festivals/1908/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 19 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 19 Mar
compat-drikpanchangComparison profileThu 19 Mar
No institution has a recorded ruling for Davao.

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 18thCoveredSunrise 19thCoveredRuled
Los Angeles18:28 → 19:2906:00holds05:59no18 Mar
Chicago20:28 → 21:2905:58holds05:57no18 Mar
Jersey City21:28 → 22:2906:04holds06:02no18 Mar
Port of Spain22:28 → 23:2906:12holds06:11no18 Mar
London02:28 → 03:2906:09holds06:07no18 Mar
Durban04:28 → 05:2905:58holds05:59no18 Mar
Dubai06:09 → 07:1006:07no06:06holds19 Mar
Delhi07:58 → 08:5906:28no06:27holds19 Mar
Kolkata07:58 → 08:5905:44no05:43holds19 Mar
Singapore09:28 → 10:2906:10no06:10holds19 Mar
Sydney12:28 → 13:2905:56no05:57holds19 Mar
Suva14:23 → 15:2406:05no06:05holds19 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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