Ruling · Durgā Navamī · 1924

Wednesday 5 November

Boundaryin Aleppo, under the Rashtriya Panchang method. A threshold is only 1 min 18 s away. Say “contested”.

Decide it for

36°12′ N 37°10′ E · Asia/Damascus · GeoNames 170063

The two middays

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

Midday of Tuesday 4 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 10:51  11:39 madhyāhna ends
Navamī begins 11:40:05
10:0310:2710:5111:1511:3912:0312:27

0 of 48 minutes covered

Midday of Wednesday 5 November

Taken. Navamī reaches neither midday; the rule takes the second day.

madhyāhna begins 10:51  11:39 madhyāhna ends
Navamī ends 10:46:35
10:0310:2710:5111:1511:3912:0312:27

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 11:40 on Tue 4 Nov to 10:47 on Wed 5 Nov.

    1924-11-04T09:40:05Z → 1924-11-05T08:46:36Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 4th, 10:51–11:39 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 0 of 48 on the 5th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: purvaviddha → second-day · margin 78 s < 300 s

  5. 05

    Ruling

    Durgā Navamī, Aleppo, 1924: Wednesday 5 November.

    confidence: boundary (margin)

Say it like this

In Aleppo, Durgā Navamī 1924 falls on Wednesday 5 November. Navamī runs from 11:40 on Tue 4 Nov to 10:47 on Wed 5 Nov, and reaches madhyāhna on neither day. It is 1 min 18 s from a threshold: treat the date as contested.

ahargana.org/aleppo/festivals/1924/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 5 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 5 Nov
compat-drikpanchangComparison profileTue 4 Nov
No institution has a recorded ruling for Aleppo.

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 Angeles01:40 → 00:4711:1248 min11:120 min4 Nov
Chicago03:40 → 02:4711:1048 min11:100 min4 Nov
Jersey City04:40 → 03:4711:1648 min11:160 min4 Nov
Port of Spain05:40 → 04:4711:2648 min11:260 min4 Nov
London09:40 → 08:4711:2048 min11:200 min4 Nov
Durban11:40 → 10:4711:1624 min11:160 min4 Nov
Dubai13:40 → 12:4711:380 min11:3848 min5 Nov
Delhi15:10 → 14:1711:410 min11:4148 min5 Nov
Kolkata15:10 → 14:1710:560 min10:5648 min5 Nov
Singapore16:40 → 15:4711:240 min11:2448 min5 Nov
Sydney19:40 → 18:4711:150 min11:1548 min5 Nov
Suva21:40 → 20:4711:260 min11:2648 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