Ruling · Durgā Navamī · 2052

Thursday 31 October

Determinatein Mosul, under the Rashtriya Panchang method. Clear of every threshold by 12 minutes.

Decide it for

MosulDelhiKolkataSingaporeSydneyJersey City

36°20′ N 43°07′ E · Asia/Baghdad · GeoNames 99072

The two middays

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

Midday of Thursday 31 October

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

madhyāhna begins 11:27  12:15 madhyāhna ends
Navamī begins 11:15:08
10:3911:0311:2711:5112:1512:3913:03

48 of 48 minutes covered

Midday of Friday 1 November

Qualifies with 27 of 48 minutes. Not taken.

madhyāhna begins 11:27  12:15 madhyāhna ends
Navamī ends 11:53:36
10:3911:0311:2711:5112:1512:3913:03

27 of 48 minutes covered, the first 27

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

How it was decided

  1. 01

    Aṅga

    Navamī runs from 11:15 on Thu 31 Oct to 11:54 on Fri 1 Nov.

    2052-10-31T08:15:09Z → 2052-11-01T08:53:36Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 31st, 11:27–12:15 on the 1st.

    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 31st and 27 of 48 on the 1st.

    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 709 s

  5. 05

    Ruling

    Durgā Navamī, Mosul, 2052: Thursday 31 October.

    confidence: determinate

Say it like this

In Mosul, Durgā Navamī 2052 falls on Thursday 31 October. Navamī runs from 11:15 on Thu 31 Oct to 11:54 on Fri 1 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 27 minutes; by the rule the first midday is taken.

ahargana.org/mosul/festivals/2052/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 31 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 31 Oct
compat-drikpanchangComparison profileThu 31 Oct
No institution has a recorded ruling for Mosul.

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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles01:15 → 01:5412:1248 min12:120 min31 Oct
Chicago03:15 → 03:5412:1048 min12:100 min31 Oct
Jersey City04:15 → 04:5412:1648 min12:160 min31 Oct
Port of Spain04:15 → 04:5411:2648 min11:260 min31 Oct
London08:15 → 08:5411:2048 min11:200 min31 Oct
Durban10:15 → 10:5411:1648 min11:160 min31 Oct
Dubai12:15 → 12:5411:3811 min11:3848 min31 Oct
Delhi13:45 → 14:2411:410 min11:4148 min1 Nov
Kolkata13:45 → 14:2410:560 min10:5648 min1 Nov
Singapore16:15 → 16:5412:240 min12:2448 min1 Nov
Sydney19:15 → 19:5412:150 min12:1548 min1 Nov
Suva20:15 → 20:5411:260 min11:2648 min1 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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