Ruling · Vasantotsava · 2086

Thursday 28 February

Determinatein Phoenix, under the Rashtriya Panchang method. Clear of every threshold by 55 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 Thursday 28 February

Taken. Both sunrises qualify; the rule takes the first.

06:57 sunrise
05:4506:0906:3306:5707:2107:4508:09

Holds at sunrise

Sunrise of Friday 1 March

Pratipadā holds at sunrise here too. Not taken.

06:56 sunrise
Pratipadā ends 07:50:48
05:4406:0806:3206:5607:2007:4408:08

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 05:22 on Thu 28 Feb to 07:51 on Fri 1 Mar.

    2086-02-28T12:22:28Z → 2086-03-01T14:50:49Z

  2. 02

    Kāla

    Sunrise is at 06:57 on the 28th and 06:56 on the 1st.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 28th and is on the 1st.

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

  4. 04

    Tie-break

    Both sunrises qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 3276 s

  5. 05

    Ruling

    Vasantotsava, Phoenix, 2086: Thursday 28 February.

    confidence: determinate

Say it like this

In Phoenix, Vasantotsava 2086 falls on Thursday 28 February. Pratipadā runs from 05:22 on Thu 28 Feb to 07:51 on Fri 1 Mar and is current at sunrise that day.

ahargana.org/phoenix/festivals/2086/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 28 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 28 Feb
compat-drikpanchangComparison profileThu 28 Feb
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 28thCoveredSunrise 1stCoveredRuled
Los Angeles04:22 → 06:5106:23holds06:21holds28 Feb
Chicago06:22 → 08:5106:27holds06:25holds28 Feb
Jersey City07:22 → 09:5106:31no06:30holds1 Mar
Port of Spain08:22 → 10:5106:21no06:21holds1 Mar
London12:22 → 14:5106:47no06:45holds1 Mar
Durban14:22 → 16:5105:47no05:48holds1 Mar
Dubai16:22 → 18:5106:43no06:42holds1 Mar
Delhi17:52 → 20:2106:47no06:46holds1 Mar
Kolkata17:52 → 20:2105:59no05:58holds1 Mar
Singapore20:22 → 22:5107:15no07:15holds1 Mar
Sydney23:22 → 01:5106:43no06:43holds1 Mar
Suva00:22 → 02:5106:05no06:06holds1 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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