Midday of Tuesday 26 October
Taken. The only midday Navamī reaches.
madhyāhna begins 11:24 12:12 madhyāhna ends
Navamī begins 11:26:57
10:3611:0011:2411:4812:1212:3613:00
45 of 48 minutes covered, the last 45
Ruling · Durgā Navamī · 2066
Boundaryin Tehran, under the Rashtriya Panchang method. A threshold is only 2 min 49 s away. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Tuesday 26 October
Taken. The only midday Navamī reaches.
45 of 48 minutes covered, the last 45
Midday of Wednesday 27 October
Navamī is absent from madhyāhna. Not taken.
0 of 48 minutes covered
Aṅga
Navamī runs from 11:27 on Tue 26 Oct to 09:44 on Wed 27 Oct.
2066-10-26T07:56:58Z → 2066-10-27T06:13:54Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 26th, 11:24–12:12 on the 27th.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 45 of 48 minutes on the 26th and 0 of 48 on the 27th.
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 169 s < 300 s
Ruling
Durgā Navamī, Tehran, 2066: Tuesday 26 October.
confidence: boundary (margin)
In Tehran, Durgā Navamī 2066 falls on Tuesday 26 October. Navamī runs from 11:27 on Tue 26 Oct to 09:44 on Wed 27 Oct and covers 45 of 48 minutes of madhyāhna that midday. It is 2 min 49 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Tue 26 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Tue 26 Oct |
| compat-drikpanchang | Comparison profile | Tue 26 Oct |
| No institution has a recorded ruling for Tehran. | ||
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 26th | Covered | Madhyāhna 27th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 00:57 → 23:14 | 12:13 | 48 min | 12:13 | 0 min | 26 Oct |
| Chicago | 02:57 → 01:14 | 12:10 | 48 min | 12:10 | 0 min | 26 Oct |
| Jersey City | 03:57 → 02:14 | 12:16 | 48 min | 12:16 | 0 min | 26 Oct |
| Port of Spain | 03:57 → 02:14 | 11:26 | 48 min | 11:26 | 0 min | 26 Oct |
| London | 08:57 → 07:14 | 12:20 | 48 min | 12:20 | 0 min | 26 Oct |
| Durban | 09:57 → 08:14 | 11:16 | 48 min | 11:16 | 0 min | 26 Oct |
| Dubai | 11:57 → 10:14 | 11:39 | 30 min | 11:39 | 0 min | 26 Oct |
| Delhi | 13:27 → 11:44 | 11:41 | 0 min | 11:41 | 3 min | 27 Oct |
| Kolkata | 13:27 → 11:44 | 10:56 | 0 min | 10:56 | 48 min | 27 Oct |
| Singapore | 15:57 → 14:14 | 12:25 | 0 min | 12:25 | 48 min | 27 Oct |
| Sydney | 18:57 → 17:14 | 12:16 | 0 min | 12:15 | 48 min | 27 Oct |
| Suva | 19:57 → 18:14 | 11:27 | 0 min | 11:26 | 48 min | 27 Oct |