Midday of Thursday 21 October
Taken. The only midday Navamī reaches.
madhyāhna begins 11:14 12:02 madhyāhna ends
Navamī begins 11:57:02
10:2610:5011:1411:3812:0212:2612:50
5 of 48 minutes covered, the last 5
Ruling · Mahānavamī · 2004
Boundaryin Riyadh, under the Rashtriya Panchang method. A threshold is only 4 min 31 s away. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Thursday 21 October
Taken. The only midday Navamī reaches.
5 of 48 minutes covered, the last 5
Midday of Friday 22 October
Navamī is absent from madhyāhna. Not taken.
0 of 48 minutes covered
Aṅga
Navamī runs from 11:57 on Thu 21 Oct to 10:05 on Fri 22 Oct.
2004-10-21T08:57:03Z → 2004-10-22T07:04:42Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 21st, 11:13–12:01 on the 22nd.
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 21st and 0 of 48 on the 22nd.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Only one midday qualifies. No tie-break is needed.
priority: purvaviddha → only-day · margin 271 s < 300 s
Ruling
Mahānavamī, Riyadh, 2004: Thursday 21 October.
confidence: boundary (margin)
In Riyadh, Mahānavamī 2004 falls on Thursday 21 October. Navamī runs from 11:57 on Thu 21 Oct to 10:05 on Fri 22 Oct and covers 5 of 48 minutes of madhyāhna that midday. It is 4 min 31 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Thu 21 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Thu 21 Oct |
| compat-drikpanchang | Comparison profile | Thu 21 Oct |
| No institution has a recorded ruling for Riyadh. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/mahanavami · ruleset 2026.3-draft
“S 9 Mahanavami (purvaviddha) (In Bengal it is observed as paraviddha covering one muhurta from sunrise).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104. The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.
Twelve places, west to east. Local clock times.
| Place | Navamī | Madhyāhna 21st | Covered | Madhyāhna 22nd | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 01:57 → 00:05 | 12:13 | 48 min | 12:13 | 0 min | 21 Oct |
| Chicago | 03:57 → 02:05 | 12:11 | 48 min | 12:11 | 0 min | 21 Oct |
| Jersey City | 04:57 → 03:05 | 12:17 | 48 min | 12:16 | 0 min | 21 Oct |
| Port of Spain | 04:57 → 03:05 | 11:27 | 48 min | 11:26 | 0 min | 21 Oct |
| London | 09:57 → 08:05 | 12:21 | 48 min | 12:21 | 0 min | 21 Oct |
| Durban | 10:57 → 09:05 | 11:17 | 48 min | 11:17 | 0 min | 21 Oct |
| Dubai | 12:57 → 11:05 | 11:39 | 0 min | 11:39 | 0 min | 22 Oct |
| Delhi | 14:27 → 12:35 | 11:42 | 0 min | 11:41 | 48 min | 22 Oct |
| Kolkata | 14:27 → 12:35 | 10:57 | 0 min | 10:57 | 48 min | 22 Oct |
| Singapore | 16:57 → 15:05 | 12:25 | 0 min | 12:25 | 48 min | 22 Oct |
| Sydney | 18:57 → 17:05 | 11:16 | 0 min | 11:16 | 48 min | 22 Oct |
| Suva | 20:57 → 19:05 | 11:27 | 0 min | 11:27 | 48 min | 22 Oct |