Midday of Saturday 30 October
Taken. Both middays qualify; the rule takes the first.
madhyāhna begins 11:15 12:03 madhyāhna ends
Navamī begins 12:02:27
10:2710:5111:1511:3912:0312:2712:51
0 of 48 minutes covered
Ruling · Durgā Navamī · 1976
Boundaryin Cairo, under the Rashtriya Panchang method. A threshold is only 0 min 03 s away. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Saturday 30 October
Taken. Both middays qualify; the rule takes the first.
0 of 48 minutes covered
Midday of Sunday 31 October
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Aṅga
Navamī runs from 12:02 on Sat 30 Oct to 12:30 on Sun 31 Oct.
1976-10-30T10:02:27Z → 1976-10-31T10:30:03Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 on the 30th, 11:14–12:02 on the 31st.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 31st.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Both middays qualify. Pūrvaviddhā: the first is taken.
priority: purvaviddha → purvaviddha · margin 3 s < 300 s
Ruling
Durgā Navamī, Cairo, 1976: Saturday 30 October.
confidence: boundary (margin)
In Cairo, Durgā Navamī 1976 falls on Saturday 30 October. Navamī runs from 12:02 on Sat 30 Oct to 12:30 on Sun 31 Oct and covers 0 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken. It is 0 min 03 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Sat 30 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Sat 30 Oct |
| compat-drikpanchang | Comparison profile | Sat 30 Oct |
| No institution has a recorded ruling for Cairo. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/durga-navami · ruleset 2026.3-draft
“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.
Twelve places, west to east. Local clock times.
| Place | Navamī | Madhyāhna 30th | Covered | Madhyāhna 31st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 03:02 → 02:30 | 12:12 | 48 min | 11:12 | 0 min | 30 Oct |
| Chicago | 05:02 → 04:30 | 12:10 | 48 min | 11:10 | 0 min | 30 Oct |
| Jersey City | 06:02 → 05:30 | 12:16 | 48 min | 11:16 | 0 min | 30 Oct |
| Port of Spain | 06:02 → 06:30 | 11:26 | 48 min | 11:26 | 0 min | 30 Oct |
| London | 10:02 → 10:30 | 11:20 | 48 min | 11:20 | 0 min | 30 Oct |
| Durban | 12:02 → 12:30 | 11:16 | 1 min | 11:16 | 48 min | 30 Oct |
| Dubai | 14:02 → 14:30 | 11:38 | 0 min | 11:38 | 48 min | 31 Oct |
| Delhi | 15:32 → 16:00 | 11:41 | 0 min | 11:41 | 48 min | 31 Oct |
| Kolkata | 15:32 → 16:00 | 10:56 | 0 min | 10:56 | 48 min | 31 Oct |
| Singapore | 17:32 → 18:00 | 11:54 | 0 min | 11:54 | 48 min | 31 Oct |
| Sydney | 20:02 → 21:30 | 11:15 | 0 min | 12:15 | 48 min | 31 Oct |
| Suva | 22:02 → 22:30 | 11:26 | 0 min | 11:26 | 48 min | 31 Oct |