Ruling · Vasantotsava · 2098

Monday 17 March

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

Decide it for

36°44′ N 3°05′ E · Africa/Algiers · GeoNames 2507480

The two sunrises

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

Sunrise of Monday 17 March

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

06:56 sunrise
05:4406:0806:3206:5607:2007:4408:08

Absent at sunrise

Sunrise of Tuesday 18 March

Pratipadā does not hold at sunrise. Not taken.

06:54 sunrise
Pratipadā ends 06:26:31
05:4206:0606:3006:5407:1807:4208:06

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 08:45 on Mon 17 Mar to 06:27 on Tue 18 Mar.

    2098-03-17T07:44:51Z → 2098-03-18T05:26:31Z

  2. 02

    Kāla

    Sunrise is at 06:56 on the 17th and 06:54 on the 18th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 17th and is not on the 18th.

    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 1658 s

  5. 05

    Ruling

    Vasantotsava, Algiers, 2098: Monday 17 March.

    confidence: boundary (absent-unstated)

Say it like this

In Algiers, Vasantotsava 2098 falls on Monday 17 March. Pratipadā runs from 08:45 on Mon 17 Mar to 06:27 on Tue 18 Mar, and is current at sunrise on neither day.

ahargana.org/algiers/festivals/2098/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 17 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 17 Mar
compat-drikpanchangComparison profileMon 17 Mar
No institution has a recorded ruling for Algiers.

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 17thCoveredSunrise 18thCoveredRuled
Los Angeles00:45 → 22:2707:00holds06:59no17 Mar
Chicago02:45 → 00:2706:59holds06:57no17 Mar
Jersey City03:45 → 01:2707:04holds07:03no17 Mar
Port of Spain03:45 → 01:2706:12holds06:12no17 Mar
London07:45 → 05:2706:10no06:07no17 Mar
Durban09:45 → 07:2705:58no05:59holds18 Mar
Dubai11:45 → 09:2706:26no06:25holds18 Mar
Delhi13:15 → 10:5706:29no06:28holds18 Mar
Kolkata13:15 → 10:5705:44no05:43holds18 Mar
Singapore15:45 → 13:2707:10no07:10holds18 Mar
Sydney18:45 → 16:2706:57no06:57holds18 Mar
Suva19:45 → 17:2706:10no06:10holds18 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

About Ahargaṇa