Midday of Friday 20 November
Taken. Both middays qualify; the rule takes the first.
madhyāhna begins 11:26 12:14 madhyāhna ends
10:3811:0211:2611:5012:1412:3813:02
48 of 48 minutes covered
Ruling · Durgā Navamī · 2099
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 8 min 24 s.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Friday 20 November
Taken. Both middays qualify; the rule takes the first.
48 of 48 minutes covered
Midday of Saturday 21 November
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Aṅga
Navamī runs from 09:54 on Fri 20 Nov to 12:23 on Sat 21 Nov.
2099-11-20T06:23:31Z → 2099-11-21T08:52:44Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 20th, 11:26–12:14 on the 21st.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 48 of 48 on the 21st.
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 504 s
Ruling
Durgā Navamī, Tehran, 2099: Friday 20 November.
confidence: determinate
In Tehran, Durgā Navamī 2099 falls on Friday 20 November. Navamī runs from 09:54 on Fri 20 Nov to 12:23 on Sat 21 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Fri 20 Nov |
| Ahargaṇa, classical | Disc centre, no refraction | Fri 20 Nov |
| compat-drikpanchang | Comparison profile | Fri 20 Nov |
| 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 20th | Covered | Madhyāhna 21st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 22:24 → 00:53 | 11:15 | 48 min | 11:15 | 0 min | 20 Nov |
| Chicago | 00:24 → 02:53 | 11:12 | 48 min | 11:13 | 0 min | 20 Nov |
| Jersey City | 01:24 → 03:53 | 11:18 | 48 min | 11:18 | 0 min | 20 Nov |
| Port of Spain | 02:24 → 04:53 | 11:28 | 48 min | 11:28 | 0 min | 20 Nov |
| London | 06:24 → 08:53 | 11:22 | 48 min | 11:22 | 0 min | 20 Nov |
| Durban | 08:24 → 10:53 | 11:18 | 48 min | 11:18 | 0 min | 20 Nov |
| Dubai | 10:24 → 12:53 | 11:41 | 48 min | 11:41 | 48 min | 20 Nov |
| Delhi | 11:54 → 14:23 | 11:43 | 37 min | 11:43 | 48 min | 20 Nov |
| Kolkata | 11:54 → 14:23 | 10:58 | 0 min | 10:59 | 48 min | 21 Nov |
| Singapore | 14:24 → 16:53 | 12:26 | 0 min | 12:27 | 48 min | 21 Nov |
| Sydney | 17:24 → 19:53 | 12:17 | 0 min | 12:17 | 48 min | 21 Nov |
| Suva | 18:24 → 20:53 | 11:28 | 0 min | 11:28 | 48 min | 21 Nov |