Ruling · Durgā Navamī · 2098

Sunday 2 November

Determinatein Cairo, under the Rashtriya Panchang method. Clear of every threshold by 240 minutes.

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 Saturday 1 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:15  12:03 madhyāhna ends
10:2710:5111:1511:3912:0312:2712:51

0 of 48 minutes covered

Midday of Sunday 2 November

Taken. The only midday Navamī reaches.

madhyāhna begins 11:15  12:03 madhyāhna ends
10:2710:5111:1511:3912:0312:2712:51

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 16:03 on Sat 1 Nov to 18:36 on Sun 2 Nov.

    2098-11-01T14:03:00Z → 2098-11-02T16:36:06Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 1st, 11:15–12:03 on the 2nd.

    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 1st and 48 of 48 on the 2nd.

    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 14417 s

  5. 05

    Ruling

    Durgā Navamī, Cairo, 2098: Sunday 2 November.

    confidence: determinate

Say it like this

In Cairo, Durgā Navamī 2098 falls on Sunday 2 November. Navamī runs from 16:03 on Sat 1 Nov to 18:36 on Sun 2 Nov and covers all of madhyāhna that midday.

ahargana.org/cairo/festivals/2098/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 2 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 2 Nov
compat-drikpanchangComparison profileSun 2 Nov
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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles07:03 → 08:3612:1348 min11:130 min1 Nov
Chicago09:03 → 10:3612:1048 min11:100 min1 Nov
Jersey City10:03 → 11:3612:1648 min11:1620 min1 Nov
Port of Spain10:03 → 12:3611:2648 min11:2648 min1 Nov
London14:03 → 16:3611:200 min11:2048 min2 Nov
Durban16:03 → 18:3611:160 min11:1648 min2 Nov
Dubai18:03 → 20:3611:390 min11:3848 min2 Nov
Delhi19:33 → 22:0611:410 min11:4148 min2 Nov
Kolkata19:33 → 22:0610:560 min10:5648 min2 Nov
Singapore22:03 → 00:3612:240 min12:2448 min2 Nov
Sydney01:03 → 03:3612:150 min12:1548 min2 Nov
Suva02:03 → 04:3611:260 min11:2648 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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