Ruling · Vasantotsava · 2072

Friday 4 March

Boundaryin Phoenix, under the Rashtriya Panchang method. Pratipadā reaches sunrise on neither day and the rule does not say what then. Say “contested”.

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 Friday 4 March

Taken. Pratipadā reaches neither sunrise; this is the day it falls on.

06:52 sunrise
05:4006:0406:2806:5207:1607:4008:04

Absent at sunrise

Sunrise of Saturday 5 March

Pratipadā does not hold at sunrise. Not taken.

06:51 sunrise
05:3906:0306:2706:5107:1507:3908:03

Absent 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 08:18 on Fri 4 Mar to 04:53 on Sat 5 Mar.

    2072-03-04T15:18:26Z → 2072-03-05T11:52:48Z

  2. 02

    Kāla

    Sunrise is at 06:52 on the 4th and 06:51 on the 5th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 4th and is not on the 5th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Neither sunrise qualifies. The day the tithi falls on is taken.

    priority: purvaviddha → tithi-day · margin 5190 s

  5. 05

    Ruling

    Vasantotsava, Phoenix, 2072: Friday 4 March.

    confidence: boundary (absent-unstated)

Say it like this

In Phoenix, Vasantotsava 2072 falls on Friday 4 March. Pratipadā runs from 08:18 on Fri 4 Mar to 04:53 on Sat 5 Mar, and is current at sunrise on neither day.

ahargana.org/phoenix/festivals/2072/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 Mar
Ahargaṇa, classicalDisc centre, no refractionFri 4 Mar
compat-drikpanchangComparison profileFri 4 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 4thCoveredSunrise 5thCoveredRuled
Los Angeles07:18 → 03:5306:17no06:16no4 Mar
Chicago09:18 → 05:5306:20no06:18no4 Mar
Jersey City10:18 → 06:5306:25no06:23holds5 Mar
Port of Spain11:18 → 07:5306:19no06:19holds5 Mar
London15:18 → 11:5306:38no06:36holds5 Mar
Durban17:18 → 13:5305:50no05:50holds5 Mar
Dubai19:18 → 15:5306:39no06:38holds5 Mar
Delhi20:48 → 17:2306:43no06:42holds5 Mar
Kolkata20:48 → 17:2305:55no05:54holds5 Mar
Singapore23:18 → 19:5307:14no07:13holds5 Mar
Sydney02:18 → 22:5306:46no06:47holds5 Mar
Suva03:18 → 23:5306:06no06:07holds5 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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