Ruling · Durgā Saptamī · 2049

Sunday 3 October

Boundaryin Chattogram, under the Rashtriya Panchang method. Saptamī reaches the first muhūrta after sunrise on neither day and the rule does not say what then. Say “contested”.

Decide it for

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

The two mornings

One ghaṭī is 24 minutes. The first muhūrta after sunrise is 1st of 15 day muhūrtas.

Morning of Sunday 3 October

Taken. Saptamī reaches neither morning; this is the day it falls on.

sunrise 05:45  06:33 one muhūrta on
Saptamī begins 06:10:05
04:5705:2105:4506:0906:3306:5707:21

23 of 48 minutes covered, the last 23

Morning of Monday 4 October

Saptamī is absent from the first muhūrta after sunrise. Not taken.

sunrise 05:45  06:33 one muhūrta on
04:5705:2105:4506:0906:3306:5707:21

0 of 47 minutes covered

Saptamī presentThe first muhūrta after sunrise, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 06:10 on Sun 3 Oct to 04:35 on Mon 4 Oct.

    2049-10-03T00:10:05Z → 2049-10-03T22:34:37Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:45–06:33 on the 3rd, 05:45–06:33 on the 4th.

    udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must hold through the first muhūrta after sunrise. It covers 23 of 48 minutes on the 3rd and 0 of 47 on the 4th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Neither morning qualifies. The day the tithi falls on is taken.

    priority: paraviddha → tithi-day · margin 1351 s

  5. 05

    Ruling

    Durgā Saptamī, Chattogram, 2049: Sunday 3 October.

    confidence: boundary (absent-unstated)

Say it like this

In Chattogram, Durgā Saptamī 2049 falls on Sunday 3 October. Saptamī runs from 06:10 on Sun 3 Oct to 04:35 on Mon 4 Oct, and reaches the first muhūrta after sunrise on neither day.

ahargana.org/chattogram/festivals/2049/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 3 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 3 Oct
compat-drikpanchangComparison profileSun 3 Oct
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/durga-saptami · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
The first muhūrta after sunrise
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīSunrise 3rdCoveredSunrise 4thCoveredRuled
Los Angeles17:10 → 15:3506:5047 min06:500 min3 Oct
Chicago19:10 → 17:3506:5146 min06:520 min3 Oct
Jersey City20:10 → 18:3506:5647 min06:570 min3 Oct
Port of Spain20:10 → 18:3505:5548 min05:550 min3 Oct
London01:10 → 23:3507:0546 min07:070 min3 Oct
Durban02:10 → 00:3505:3250 min05:310 min3 Oct
Dubai04:10 → 02:3506:1247 min06:120 min3 Oct
Delhi05:40 → 04:0506:1647 min06:160 min3 Oct
Kolkata05:40 → 04:0505:2936 min05:290 min3 Oct
Singapore08:10 → 06:3506:510 min06:510 min3 Oct
Sydney11:10 → 09:3506:300 min06:2950 min4 Oct
Suva12:10 → 10:3505:470 min05:4649 min4 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
durga-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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