Ruling · Durgā Navamī · 2073

Tuesday 7 November

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 19 minutes.

Decide it for

ChattogramDelhiKolkataSingaporeSydneyJersey City

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

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Tuesday 7 November

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:12  12:00 madhyāhna ends
10:2410:4811:1211:3612:0012:2412:48

48 of 48 minutes covered

Midday of Wednesday 8 November

Qualifies with 29 of 48 minutes. Not taken.

madhyāhna begins 11:12  12:00 madhyāhna ends
Navamī ends 11:41:18
10:2410:4811:1211:3612:0012:2412:48

29 of 48 minutes covered, the first 29

Navamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Navamī runs from 10:12 on Tue 7 Nov to 11:41 on Wed 8 Nov.

    2073-11-07T04:12:03Z → 2073-11-08T05:41:18Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:12–12:00 on the 7th, 11:12–12:00 on the 8th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 29 of 48 on the 8th.

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

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1150 s

  5. 05

    Ruling

    Durgā Navamī, Chattogram, 2073: Tuesday 7 November.

    confidence: determinate

Say it like this

In Chattogram, Durgā Navamī 2073 falls on Tuesday 7 November. Navamī runs from 10:12 on Tue 7 Nov to 11:41 on Wed 8 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 29 minutes; by the rule the first midday is taken.

ahargana.org/chattogram/festivals/2073/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 7 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 7 Nov
compat-drikpanchangComparison profileTue 7 Nov
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-navami · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Navamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceNavamīMadhyāhna 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles20:12 → 21:4111:1348 min11:130 min7 Nov
Chicago22:12 → 23:4111:1048 min11:100 min7 Nov
Jersey City23:12 → 00:4111:1648 min11:160 min7 Nov
Port of Spain00:12 → 01:4111:2648 min11:260 min7 Nov
London04:12 → 05:4111:2048 min11:200 min7 Nov
Durban06:12 → 07:4111:1648 min11:160 min7 Nov
Dubai08:12 → 09:4111:3848 min11:390 min7 Nov
Delhi09:42 → 11:1111:4148 min11:410 min7 Nov
Kolkata09:42 → 11:1110:5648 min10:5615 min7 Nov
Singapore12:12 → 13:4112:2448 min12:2548 min7 Nov
Sydney15:12 → 16:4112:150 min12:1548 min8 Nov
Suva16:12 → 17:4111:260 min11:2648 min8 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
durga-navami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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