Midday of Tuesday 9 November
Taken. Both middays qualify; the rule takes the first.
madhyāhna begins 11:42 12:30 madhyāhna ends
Navamī begins 12:25:35
10:5411:1811:4212:0612:3012:5413:18
5 of 48 minutes covered, the last 5
Ruling · Durgā Navamī · 1948
Boundaryin Chattogram, under the Rashtriya Panchang method. A threshold is only 4 min 50 s away. Say “contested”.
Decide it for
22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Tuesday 9 November
Taken. Both middays qualify; the rule takes the first.
5 of 48 minutes covered, the last 5
Midday of Wednesday 10 November
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Aṅga
Navamī runs from 12:26 on Tue 9 Nov to 14:55 on Wed 10 Nov.
1948-11-09T05:55:35Z → 1948-11-10T08:25:17Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 9th, 11:43–12:31 on the 10th.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 5 of 48 minutes on the 9th and 48 of 48 on the 10th.
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 290 s < 300 s
Ruling
Durgā Navamī, Chattogram, 1948: Tuesday 9 November.
confidence: boundary (margin)
In Chattogram, Durgā Navamī 1948 falls on Tuesday 9 November. Navamī runs from 12:26 on Tue 9 Nov to 14:55 on Wed 10 Nov and covers 5 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 4 min 50 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Tue 9 Nov |
| Ahargaṇa, classical | Disc centre, no refraction | Tue 9 Nov |
| compat-drikpanchang | Comparison profile | Tue 9 Nov |
| No institution has a recorded ruling for Chattogram. | ||
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 9th | Covered | Madhyāhna 10th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 22:56 → 01:25 | 12:13 | 48 min | 12:13 | 0 min | 9 Nov |
| Chicago | 23:56 → 02:25 | 11:10 | 48 min | 11:10 | 0 min | 9 Nov |
| Jersey City | 00:56 → 03:25 | 11:16 | 48 min | 11:16 | 0 min | 9 Nov |
| Port of Spain | 01:56 → 04:25 | 11:26 | 48 min | 11:26 | 0 min | 9 Nov |
| London | 05:56 → 08:25 | 11:20 | 48 min | 11:20 | 0 min | 9 Nov |
| Durban | 07:56 → 10:25 | 11:16 | 48 min | 11:16 | 0 min | 9 Nov |
| Dubai | 09:56 → 12:25 | 11:39 | 48 min | 11:39 | 47 min | 9 Nov |
| Delhi | 11:26 → 13:55 | 11:41 | 48 min | 11:41 | 48 min | 9 Nov |
| Kolkata | 11:26 → 13:55 | 10:56 | 19 min | 10:56 | 48 min | 9 Nov |
| Singapore | 13:26 → 15:55 | 11:54 | 0 min | 11:55 | 48 min | 10 Nov |
| Sydney | 15:56 → 18:25 | 11:15 | 0 min | 11:15 | 48 min | 10 Nov |
| Suva | 17:56 → 20:25 | 11:26 | 0 min | 11:26 | 48 min | 10 Nov |