Ruling · Vasantotsava · 1969

Wednesday 5 March

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 297 minutes.

Decide it for

22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733

The two sunrises

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

Sunrise of Tuesday 4 March

Pratipadā does not hold at sunrise. Not taken.

06:12 sunrise
05:0005:2405:4806:1206:3607:0007:24

Absent at sunrise

Sunrise of Wednesday 5 March

Taken. The only sunrise Pratipadā holds at.

06:11 sunrise
04:5905:2305:4706:1106:3506:5907:23

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 11:17 on Tue 4 Mar to 11:08 on Wed 5 Mar.

    1969-03-04T05:17:03Z → 1969-03-05T05:07:55Z

  2. 02

    Kāla

    Sunrise is at 06:12 on the 4th and 06:11 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 on the 5th.

    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 17803 s

  5. 05

    Ruling

    Vasantotsava, Chattogram, 1969: Wednesday 5 March.

    confidence: determinate

Say it like this

In Chattogram, Vasantotsava 1969 falls on Wednesday 5 March. Pratipadā runs from 11:17 on Tue 4 Mar to 11:08 on Wed 5 Mar and is current at sunrise that day.

ahargana.org/chattogram/festivals/1969/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 5 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 5 Mar
compat-drikpanchangComparison profileWed 5 Mar
No institution has a recorded ruling for Chattogram.

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 Angeles21:17 → 21:0806:18holds06:17no4 Mar
Chicago23:17 → 23:0806:21holds06:20no4 Mar
Jersey City00:17 → 00:0806:26holds06:25no4 Mar
Port of Spain01:17 → 01:0806:20holds06:19no4 Mar
London06:17 → 06:0807:40holds07:38no4 Mar
Durban07:17 → 07:0805:49no05:50holds5 Mar
Dubai09:17 → 09:0806:39no06:39holds5 Mar
Delhi10:47 → 10:3806:44no06:43holds5 Mar
Kolkata10:47 → 10:3805:56no05:55holds5 Mar
Singapore12:47 → 12:3806:44no06:44holds5 Mar
Sydney15:17 → 15:0805:45no05:46holds5 Mar
Suva17:17 → 17:0806:06no06:06holds5 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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