Ruling · Vasantotsava · 2099

Saturday 7 March

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 68 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 Saturday 7 March

Taken. The only sunrise Pratipadā holds at.

06:09 sunrise
Pratipadā begins 05:01:42
04:5705:2105:4506:0906:3306:5707:21

Holds at sunrise

Sunrise of Sunday 8 March

Pratipadā does not hold at sunrise. Not taken.

06:08 sunrise
04:5605:2005:4406:0806:3206:5607:20

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 05:02 on Sat 7 Mar to 01:18 on Sun 8 Mar.

    2099-03-06T23:01:42Z → 2099-03-07T19:18:25Z

  2. 02

    Kāla

    Sunrise is at 06:09 on the 7th and 06:08 on the 8th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 7th and is not on the 8th.

    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 4052 s

  5. 05

    Ruling

    Vasantotsava, Chattogram, 2099: Saturday 7 March.

    confidence: determinate

Say it like this

In Chattogram, Vasantotsava 2099 falls on Saturday 7 March. Pratipadā runs from 05:02 on Sat 7 Mar to 01:18 on Sun 8 Mar and is current at sunrise that day.

ahargana.org/chattogram/festivals/2099/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 7 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 7 Mar
compat-drikpanchangComparison profileSat 7 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 6thCoveredSunrise 7thCoveredRuled
Los Angeles15:02 → 11:1806:15no06:14holds7 Mar
Chicago17:02 → 13:1806:17no06:16holds7 Mar
Jersey City18:02 → 14:1806:22no06:21holds7 Mar
Port of Spain19:02 → 15:1806:18no06:18holds7 Mar
London23:02 → 19:1806:35no06:33holds7 Mar
Durban01:02 → 21:1805:51no05:52holds7 Mar
Dubai03:02 → 23:1806:37no06:36holds7 Mar
Delhi04:32 → 00:4806:41no06:40holds7 Mar
Kolkata04:32 → 00:4805:54no05:53holds7 Mar
Singapore07:02 → 03:1807:14no07:13holds7 Mar
Sydney10:02 → 06:1806:48no06:48no7 Mar
Suva11:02 → 07:1806:07no06:07no8 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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