Ruling · Durgā Navamī · 1940

Thursday 7 November

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

Decide it for

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 Thursday 7 November

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

madhyāhna begins 11:27  12:15 madhyāhna ends
Navamī begins 10:46:15
10:3911:0311:2711:5112:1512:3913:03

48 of 48 minutes covered

Midday of Friday 8 November

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:27  12:15 madhyāhna ends
Navamī ends 12:33:31
10:3911:0311:2711:5112:1512:3913:03

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 10:46 on Thu 7 Nov to 12:34 on Fri 8 Nov.

    1940-11-07T09:46:16Z → 1940-11-08T11:33:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 7th, 11:27–12:15 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 48 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 1115 s

  5. 05

    Ruling

    Durgā Navamī, Luanda, 1940: Thursday 7 November.

    confidence: determinate

Say it like this

In Luanda, Durgā Navamī 1940 falls on Thursday 7 November. Navamī runs from 10:46 on Thu 7 Nov to 12:34 on Fri 8 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/luanda/festivals/1940/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 7 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 7 Nov
compat-drikpanchangComparison profileThu 7 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles01:46 → 03:3411:1348 min11:130 min7 Nov
Chicago03:46 → 05:3411:1048 min11:100 min7 Nov
Jersey City04:46 → 06:3411:1648 min11:160 min7 Nov
Port of Spain05:46 → 07:3411:2648 min11:260 min7 Nov
London10:46 → 12:3412:2048 min12:2014 min7 Nov
Durban11:46 → 13:3411:1618 min11:1648 min7 Nov
Dubai13:46 → 15:3411:380 min11:3848 min8 Nov
Delhi15:16 → 17:0411:410 min11:4148 min8 Nov
Kolkata15:16 → 17:0410:560 min10:5648 min8 Nov
Singapore17:06 → 18:5411:440 min11:4448 min8 Nov
Sydney19:46 → 21:3411:150 min11:1548 min8 Nov
Suva21:46 → 23:3411:260 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

About Ahargaṇa