Ruling · Vasantotsava · 2020

Monday 9 March

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

Decide it for

32°30′ N 117°00′ W · America/Tijuana · GeoNames 3981609

The two sunrises

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

Sunrise of Monday 9 March

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

07:05 sunrise
05:5306:1706:4107:0507:2907:5308:17

Absent at sunrise

Sunrise of Tuesday 10 March

Pratipadā does not hold at sunrise. Not taken.

07:04 sunrise
Pratipadā ends 06:53:42
05:5206:1606:4007:0407:2807:5208:16

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 10:48 on Mon 9 Mar to 06:54 on Tue 10 Mar.

    2020-03-09T17:47:45Z → 2020-03-10T13:53:43Z

  2. 02

    Kāla

    Sunrise is at 07:05 on the 9th and 07:04 on the 10th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 9th and is not on the 10th.

    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 622 s

  5. 05

    Ruling

    Vasantotsava, Tijuana, 2020: Monday 9 March.

    confidence: boundary (absent-unstated)

Say it like this

In Tijuana, Vasantotsava 2020 falls on Monday 9 March. Pratipadā runs from 10:48 on Mon 9 Mar to 06:54 on Tue 10 Mar, and is current at sunrise on neither day.

ahargana.org/tijuana/festivals/2020/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 9 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 9 Mar
compat-drikpanchangComparison profileMon 9 Mar
No institution has a recorded ruling for Tijuana.

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 9thCoveredSunrise 10thCoveredRuled
Los Angeles10:48 → 06:5407:11no07:10no9 Mar
Chicago12:48 → 08:5407:12no07:10holds10 Mar
Jersey City13:48 → 09:5407:17no07:16holds10 Mar
Port of Spain13:48 → 09:5406:17no06:16holds10 Mar
London17:48 → 13:5406:28no06:25holds10 Mar
Durban19:48 → 15:5405:53no05:53holds10 Mar
Dubai21:48 → 17:5406:34no06:33holds10 Mar
Delhi23:18 → 19:2406:38no06:37holds10 Mar
Kolkata23:18 → 19:2405:51no05:50holds10 Mar
Singapore01:48 → 21:5407:12no07:12holds10 Mar
Sydney04:48 → 00:5406:50no06:51holds10 Mar
Suva05:48 → 01:5406:08no06:08holds10 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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