Ruling · Durgā Navamī · 2084

Monday 6 November

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 532 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 Sunday 5 November

Navamī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Monday 6 November

Taken. The only midday Navamī reaches.

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

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Navamī runs from 22:38 on Sun 5 Nov to 20:52 on Mon 6 Nov.

    2084-11-05T16:37:47Z → 2084-11-06T14:52:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:12–12:00 on the 5th, 11:12–12:00 on the 6th.

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

  3. 03

    Rule

    Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.

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

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 31911 s

  5. 05

    Ruling

    Durgā Navamī, Chattogram, 2084: Monday 6 November.

    confidence: determinate

Say it like this

In Chattogram, Durgā Navamī 2084 falls on Monday 6 November. Navamī runs from 22:38 on Sun 5 Nov to 20:52 on Mon 6 Nov and covers all of madhyāhna that midday.

ahargana.org/chattogram/festivals/2084/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 6 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 6 Nov
compat-drikpanchangComparison profileMon 6 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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles08:38 → 06:5211:1348 min11:130 min5 Nov
Chicago10:38 → 08:5211:1048 min11:100 min5 Nov
Jersey City11:38 → 09:5211:1626 min11:160 min5 Nov
Port of Spain12:38 → 10:5211:260 min11:260 min6 Nov
London16:38 → 14:5211:200 min11:2048 min6 Nov
Durban18:38 → 16:5211:160 min11:1648 min6 Nov
Dubai20:38 → 18:5211:380 min11:3948 min6 Nov
Delhi22:08 → 20:2211:410 min11:4148 min6 Nov
Kolkata22:08 → 20:2210:560 min10:5648 min6 Nov
Singapore00:38 → 22:5212:240 min12:2448 min6 Nov
Sydney03:38 → 01:5212:150 min12:1548 min6 Nov
Suva04:38 → 02:5211:260 min11:2648 min6 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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