Midday of Wednesday 18 October
Taken. Both middays qualify; the rule takes the first.
madhyāhna begins 11:25 12:13 madhyāhna ends
Navamī begins 11:34:48
10:3711:0111:2511:4912:1312:3713:01
38 of 48 minutes covered, the last 38
Ruling · Mahānavamī · 2045
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 9 min 36 s.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Wednesday 18 October
Taken. Both middays qualify; the rule takes the first.
38 of 48 minutes covered, the last 38
Midday of Thursday 19 October
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Aṅga
Navamī runs from 11:35 on Wed 18 Oct to 14:08 on Thu 19 Oct.
2045-10-18T08:04:48Z → 2045-10-19T10:38:28Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 18th, 11:25–12:13 on the 19th.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 38 of 48 minutes on the 18th and 48 of 48 on the 19th.
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 576 s
Ruling
Mahānavamī, Tehran, 2045: Wednesday 18 October.
confidence: determinate
In Tehran, Mahānavamī 2045 falls on Wednesday 18 October. Navamī runs from 11:35 on Wed 18 Oct to 14:08 on Thu 19 Oct and covers 38 of 48 minutes 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 | Wed 18 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Wed 18 Oct |
| compat-drikpanchang | Comparison profile | Wed 18 Oct |
| No institution has a recorded ruling for Tehran. | ||
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 18th | Covered | Madhyāhna 19th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 01:05 → 03:38 | 12:14 | 48 min | 12:14 | 0 min | 18 Oct |
| Chicago | 03:05 → 05:38 | 12:11 | 48 min | 12:11 | 0 min | 18 Oct |
| Jersey City | 04:05 → 06:38 | 12:17 | 48 min | 12:17 | 0 min | 18 Oct |
| Port of Spain | 04:05 → 06:38 | 11:27 | 48 min | 11:27 | 0 min | 18 Oct |
| London | 09:05 → 11:38 | 12:21 | 48 min | 12:21 | 0 min | 18 Oct |
| Durban | 10:05 → 12:38 | 11:17 | 48 min | 11:17 | 48 min | 18 Oct |
| Dubai | 12:05 → 14:38 | 11:40 | 23 min | 11:40 | 48 min | 18 Oct |
| Delhi | 13:35 → 16:08 | 11:42 | 0 min | 11:42 | 48 min | 19 Oct |
| Kolkata | 13:35 → 16:08 | 10:58 | 0 min | 10:57 | 48 min | 19 Oct |
| Singapore | 16:05 → 18:38 | 12:26 | 0 min | 12:26 | 48 min | 19 Oct |
| Sydney | 19:05 → 21:38 | 12:17 | 0 min | 12:16 | 48 min | 19 Oct |
| Suva | 20:05 → 22:38 | 11:28 | 0 min | 11:27 | 48 min | 19 Oct |