Midday of Sunday 16 November
Taken. Both middays qualify; the rule takes the first.
madhyāhna begins 11:14 12:02 madhyāhna ends
Navamī begins 12:01:01
10:2610:5011:1411:3812:0212:2612:50
1 of 48 minutes covered, the last 1
Ruling · Durgā Navamī · 2064
Boundaryin Riyadh, under the Rashtriya Panchang method. A threshold is only 0 min 56 s away. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Sunday 16 November
Taken. Both middays qualify; the rule takes the first.
1 of 48 minutes covered, the last 1
Midday of Monday 17 November
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Aṅga
Navamī runs from 12:01 on Sun 16 Nov to 14:00 on Mon 17 Nov.
2064-11-16T09:01:02Z → 2064-11-17T10:59:51Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 16th, 11:14–12:02 on the 17th.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 1 of 48 minutes on the 16th and 48 of 48 on the 17th.
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 56 s < 300 s
Ruling
Durgā Navamī, Riyadh, 2064: Sunday 16 November.
confidence: boundary (margin)
In Riyadh, Durgā Navamī 2064 falls on Sunday 16 November. Navamī runs from 12:01 on Sun 16 Nov to 14:00 on Mon 17 Nov and covers 1 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 56 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Sun 16 Nov |
| Ahargaṇa, classical | Disc centre, no refraction | Sun 16 Nov |
| compat-drikpanchang | Comparison profile | Sun 16 Nov |
| No institution has a recorded ruling for Riyadh. | ||
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 16th | Covered | Madhyāhna 17th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 01:01 → 03:00 | 11:14 | 48 min | 11:14 | 0 min | 16 Nov |
| Chicago | 03:01 → 05:00 | 11:11 | 48 min | 11:12 | 0 min | 16 Nov |
| Jersey City | 04:01 → 06:00 | 11:17 | 48 min | 11:17 | 0 min | 16 Nov |
| Port of Spain | 05:01 → 07:00 | 11:27 | 48 min | 11:27 | 0 min | 16 Nov |
| London | 09:01 → 11:00 | 11:21 | 48 min | 11:21 | 0 min | 16 Nov |
| Durban | 11:01 → 13:00 | 11:17 | 48 min | 11:17 | 48 min | 16 Nov |
| Dubai | 13:01 → 15:00 | 11:40 | 0 min | 11:40 | 48 min | 17 Nov |
| Delhi | 14:31 → 16:30 | 11:42 | 0 min | 11:42 | 48 min | 17 Nov |
| Kolkata | 14:31 → 16:30 | 10:57 | 0 min | 10:58 | 48 min | 17 Nov |
| Singapore | 17:01 → 19:00 | 12:26 | 0 min | 12:26 | 48 min | 17 Nov |
| Sydney | 20:01 → 22:00 | 12:16 | 0 min | 12:16 | 48 min | 17 Nov |
| Suva | 21:01 → 23:00 | 11:27 | 0 min | 11:27 | 48 min | 17 Nov |