Ruling · Vasantotsava · 2047

Tuesday 12 March

Determinatein Phoenix, under the Rashtriya Panchang method. Clear of every threshold by 499 minutes.

Decide it for

33°27′ N 112°04′ W · America/Phoenix · GeoNames 5308655

The two sunrises

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

Sunrise of Monday 11 March

Pratipadā does not hold at sunrise. Not taken.

06:44 sunrise
05:3205:5606:2006:4407:0807:3207:56

Absent at sunrise

Sunrise of Tuesday 12 March

Taken. The only sunrise Pratipadā holds at.

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

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 18:37 on Mon 11 Mar to 15:01 on Tue 12 Mar.

    2047-03-12T01:37:05Z → 2047-03-12T22:01:22Z

  2. 02

    Kāla

    Sunrise is at 06:44 on the 11th and 06:43 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 29916 s

  5. 05

    Ruling

    Vasantotsava, Phoenix, 2047: Tuesday 12 March.

    confidence: determinate

Say it like this

In Phoenix, Vasantotsava 2047 falls on Tuesday 12 March. Pratipadā runs from 18:37 on Mon 11 Mar to 15:01 on Tue 12 Mar and is current at sunrise that day.

ahargana.org/phoenix/festivals/2047/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 12 Mar
compat-drikpanchangComparison profileTue 12 Mar
No institution has a recorded ruling for Phoenix.

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 12thCoveredSunrise 13thCoveredRuled
Los Angeles18:37 → 15:0107:08holds07:06no12 Mar
Chicago20:37 → 17:0107:08holds07:06no12 Mar
Jersey City21:37 → 18:0107:13holds07:12no12 Mar
Port of Spain21:37 → 18:0106:15holds06:15no12 Mar
London01:37 → 22:0106:22holds06:20no12 Mar
Durban03:37 → 00:0105:54holds05:55no12 Mar
Dubai05:37 → 02:0106:32holds06:31no12 Mar
Delhi07:07 → 03:3106:35no06:34no12 Mar
Kolkata07:07 → 03:3105:49no05:48no12 Mar
Singapore09:37 → 06:0107:12no07:11no12 Mar
Sydney12:37 → 09:0106:52no06:53holds13 Mar
Suva13:37 → 10:0106:08no06:09holds13 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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