Ruling · Durgā Navamī · 1944

Thursday 26 October

Determinatein Cairo, under the Rashtriya Panchang method. Clear of every threshold by 5 min 49 s.

Decide it for

CairoDelhiKolkataSingaporeSydneyJersey City

30°04′ N 31°15′ E · Africa/Cairo · GeoNames 360630

The two middays

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

Midday of Wednesday 25 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:15  13:03 madhyāhna ends
Navamī begins 13:08:46
11:2711:5112:1512:3913:0313:2713:51

0 of 48 minutes covered

Midday of Thursday 26 October

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

madhyāhna begins 12:15  13:03 madhyāhna ends
11:2711:5112:1512:3913:0313:2713:51

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 13:09 on Wed 25 Oct to 11:23 on Thu 26 Oct.

    1944-10-25T10:08:47Z → 1944-10-26T08:23:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 25th, 12:15–13:03 on the 26th.

    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 25th and 0 of 48 on the 26th.

    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 349 s

  5. 05

    Ruling

    Durgā Navamī, Cairo, 1944: Thursday 26 October.

    confidence: determinate

Say it like this

In Cairo, Durgā Navamī 1944 falls on Thursday 26 October. Navamī runs from 13:09 on Wed 25 Oct to 11:23 on Thu 26 Oct, and reaches madhyāhna on neither day.

ahargana.org/cairo/festivals/1944/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 26 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 26 Oct
compat-drikpanchangComparison profileWed 25 Oct
No institution has a recorded ruling for Cairo.

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 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles03:09 → 01:2312:1348 min12:130 min25 Oct
Chicago05:09 → 03:2312:1048 min12:100 min25 Oct
Jersey City06:09 → 04:2312:1648 min12:160 min25 Oct
Port of Spain07:09 → 05:2312:2648 min12:260 min25 Oct
London11:09 → 09:2312:2048 min12:200 min25 Oct
Durban12:09 → 10:2311:160 min11:160 min26 Oct
Dubai14:09 → 12:2311:390 min11:3944 min26 Oct
Delhi16:39 → 14:5312:410 min12:4148 min26 Oct
Kolkata16:39 → 14:5311:570 min11:5648 min26 Oct
Singapore19:09 → 17:2313:250 min13:2548 min26 Oct
Sydney20:09 → 18:2311:160 min11:1648 min26 Oct
Suva22:09 → 20:2311:270 min11:2748 min26 Oct
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