Ruling · Durgā Navamī · 1905

Sunday 5 November

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 163 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 Saturday 4 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 10:27  11:15 madhyāhna ends
09:3910:0310:2710:5111:1511:3912:03

0 of 48 minutes covered

Midday of Sunday 5 November

Taken. The only midday Navamī reaches.

madhyāhna begins 10:27  11:15 madhyāhna ends
09:3910:0310:2710:5111:1511:3912:03

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 13:58 on Sat 4 Nov to 15:10 on Sun 5 Nov.

    1905-11-04T13:58:08Z → 1905-11-05T15:09:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 10:27–11:15 on the 4th, 10:27–11:15 on the 5th.

    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 4th and 48 of 48 on the 5th.

    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 9801 s

  5. 05

    Ruling

    Durgā Navamī, Luanda, 1905: Sunday 5 November.

    confidence: determinate

Say it like this

In Luanda, Durgā Navamī 1905 falls on Sunday 5 November. Navamī runs from 13:58 on Sat 4 Nov to 15:10 on Sun 5 Nov and covers all of madhyāhna that midday.

ahargana.org/luanda/festivals/1905/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 5 Nov
compat-drikpanchangComparison profileSun 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles05:58 → 07:1011:1248 min11:120 min4 Nov
Chicago07:58 → 09:1011:1048 min11:100 min4 Nov
Jersey City08:58 → 10:1011:1648 min11:160 min4 Nov
Port of Spain09:58 → 11:1011:2648 min11:260 min4 Nov
London13:58 → 15:1011:200 min11:2048 min5 Nov
Durban15:58 → 17:1011:160 min11:1648 min5 Nov
Dubai17:39 → 18:5111:190 min11:1948 min5 Nov
Delhi19:19 → 20:3111:320 min11:3248 min5 Nov
Kolkata19:19 → 20:3110:470 min10:4748 min5 Nov
Singapore20:58 → 22:1011:240 min11:2448 min5 Nov
Sydney23:58 → 01:1011:150 min11:1548 min5 Nov
Suva01:53 → 03:0511:210 min11:2148 min5 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