Ruling · Durgā Navamī · 1965

Tuesday 2 November

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 621 minutes.

Decide it for

LuandaDelhiKolkataSingaporeSydneyJersey City

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two middays

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

Midday of Tuesday 2 November

Taken. The only midday Navamī reaches.

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

48 of 48 minutes covered

Midday of Wednesday 3 November

Navamī is absent from madhyāhna. Not taken.

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

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 22:41 on Mon 1 Nov to 01:06 on Wed 3 Nov.

    1965-11-01T21:41:16Z → 1965-11-03T00:05:37Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 2nd, 11:27–12:15 on the 3rd.

    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 2nd and 0 of 48 on the 3rd.

    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 37266 s

  5. 05

    Ruling

    Durgā Navamī, Luanda, 1965: Tuesday 2 November.

    confidence: determinate

Say it like this

In Luanda, Durgā Navamī 1965 falls on Tuesday 2 November. Navamī runs from 22:41 on Mon 1 Nov to 01:06 on Wed 3 Nov and covers all of madhyāhna that midday.

ahargana.org/luanda/festivals/1965/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 2 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 2 Nov
compat-drikpanchangComparison profileTue 2 Nov
No institution has a recorded ruling for Luanda.

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 1stCoveredMadhyāhna 3rdCoveredRuled
Los Angeles13:41 → 16:0611:120 min11:120 min2 Nov
Chicago15:41 → 18:0611:100 min11:100 min2 Nov
Jersey City16:41 → 19:0611:160 min11:160 min2 Nov
Port of Spain17:41 → 20:0611:260 min11:260 min2 Nov
London21:41 → 00:0611:200 min11:200 min2 Nov
Durban23:41 → 02:0611:160 min11:160 min2 Nov
Dubai01:41 → 04:0611:380 min11:380 min2 Nov
Delhi03:11 → 05:3611:410 min11:410 min2 Nov
Kolkata03:11 → 05:3610:560 min10:560 min2 Nov
Singapore05:11 → 07:3611:540 min11:540 min2 Nov
Sydney07:41 → 10:0611:150 min11:150 min2 Nov
Suva09:41 → 12:0611:260 min11:2640 min2 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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