Ruling · Durgā Navamī · 2088

Monday 22 November

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 270 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 Monday 22 November

Taken. The only midday Navamī reaches.

madhyāhna begins 11:15  12:03 madhyāhna ends
10:2710:5111:1511:3912:0312:2712:51

48 of 48 minutes covered

Midday of Tuesday 23 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:15  12:03 madhyāhna ends
10:2710:5111:1511:3912:0312:2712:51

0 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 05:52 on Mon 22 Nov to 06:46 on Tue 23 Nov.

    2088-11-21T23:52:06Z → 2088-11-23T00:45:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 22nd, 11:15–12:03 on the 23rd.

    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 22nd and 0 of 48 on the 23rd.

    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 16184 s

  5. 05

    Ruling

    Durgā Navamī, Chattogram, 2088: Monday 22 November.

    confidence: determinate

Say it like this

In Chattogram, Durgā Navamī 2088 falls on Monday 22 November. Navamī runs from 05:52 on Mon 22 Nov to 06:46 on Tue 23 Nov and covers all of madhyāhna that midday.

ahargana.org/chattogram/festivals/2088/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 22 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 22 Nov
compat-drikpanchangComparison profileMon 22 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 21stCoveredMadhyāhna 23rdCoveredRuled
Los Angeles15:52 → 16:4611:150 min11:160 min22 Nov
Chicago17:52 → 18:4611:130 min11:130 min22 Nov
Jersey City18:52 → 19:4611:190 min11:190 min22 Nov
Port of Spain19:52 → 20:4611:280 min11:290 min22 Nov
London23:52 → 00:4611:230 min11:230 min22 Nov
Durban01:52 → 02:4611:180 min11:190 min22 Nov
Dubai03:52 → 04:4611:410 min11:410 min22 Nov
Delhi05:22 → 06:1611:430 min11:440 min22 Nov
Kolkata05:22 → 06:1610:590 min10:590 min22 Nov
Singapore07:52 → 08:4612:270 min12:270 min22 Nov
Sydney10:52 → 11:4612:180 min12:180 min22 Nov
Suva11:52 → 12:4611:290 min11:2948 min22 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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