Ruling · Vasantotsava · 1985

Thursday 7 March

Determinatein Phoenix, under the Rashtriya Panchang method. Clear of every threshold by 532 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 Wednesday 6 March

Pratipadā does not hold at sunrise. Not taken.

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

Absent at sunrise

Sunrise of Thursday 7 March

Taken. The only sunrise Pratipadā holds at.

06:49 sunrise
05:3706:0106:2506:4907:1307:3708:01

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 19:13 on Wed 6 Mar to 15:41 on Thu 7 Mar.

    1985-03-07T02:13:07Z → 1985-03-07T22:41:28Z

  2. 02

    Kāla

    Sunrise is at 06:51 on the 6th and 06:49 on the 7th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 6th and is on the 7th.

    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 31932 s

  5. 05

    Ruling

    Vasantotsava, Phoenix, 1985: Thursday 7 March.

    confidence: determinate

Say it like this

In Phoenix, Vasantotsava 1985 falls on Thursday 7 March. Pratipadā runs from 19:13 on Wed 6 Mar to 15:41 on Thu 7 Mar and is current at sunrise that day.

ahargana.org/phoenix/festivals/1985/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 7 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 7 Mar
compat-drikpanchangComparison profileThu 7 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 7thCoveredSunrise 8thCoveredRuled
Los Angeles18:13 → 14:4106:14holds06:13no7 Mar
Chicago20:13 → 16:4106:16holds06:14no7 Mar
Jersey City21:13 → 17:4106:21holds06:20no7 Mar
Port of Spain22:13 → 18:4106:18holds06:17no7 Mar
London02:13 → 22:4106:33holds06:31no7 Mar
Durban04:13 → 00:4105:51holds05:52no7 Mar
Dubai06:13 → 02:4106:36holds06:36no7 Mar
Delhi07:43 → 04:1106:40no06:39no7 Mar
Kolkata07:43 → 04:1105:53no05:52no7 Mar
Singapore10:13 → 06:4107:13no07:13no7 Mar
Sydney12:13 → 08:4105:48no05:49holds8 Mar
Suva14:13 → 10:4106:07no06:07holds8 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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