Midday of Monday 22 October
Navamī is absent from madhyāhna. Not taken.
madhyāhna begins 11:25 12:13 madhyāhna ends
10:3711:0111:2511:4912:1312:3713:01
0 of 48 minutes covered
Ruling · Mahānavamī · 2012
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 326 minutes.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Monday 22 October
Navamī is absent from madhyāhna. Not taken.
0 of 48 minutes covered
Midday of Tuesday 23 October
Taken. The only midday Navamī reaches.
48 of 48 minutes covered
Aṅga
Navamī runs from 18:26 on Mon 22 Oct to 17:38 on Tue 23 Oct.
2012-10-22T14:56:01Z → 2012-10-23T14:08:22Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 22nd, 11:24–12:12 on the 23rd.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.
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 19560 s
Ruling
Mahānavamī, Tehran, 2012: Tuesday 23 October.
confidence: determinate
In Tehran, Mahānavamī 2012 falls on Tuesday 23 October. Navamī runs from 18:26 on Mon 22 Oct to 17:38 on Tue 23 Oct and covers all of madhyāhna that midday.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Tue 23 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Tue 23 Oct |
| compat-drikpanchang | Comparison profile | Tue 23 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 22nd | Covered | Madhyāhna 23rd | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 07:56 → 07:08 | 12:13 | 48 min | 12:13 | 0 min | 22 Oct |
| Chicago | 09:56 → 09:08 | 12:11 | 48 min | 12:11 | 0 min | 22 Oct |
| Jersey City | 10:56 → 10:08 | 12:16 | 48 min | 12:16 | 0 min | 22 Oct |
| Port of Spain | 10:56 → 10:08 | 11:26 | 48 min | 11:26 | 0 min | 22 Oct |
| London | 15:56 → 15:08 | 12:21 | 0 min | 12:20 | 48 min | 23 Oct |
| Durban | 16:56 → 16:08 | 11:17 | 0 min | 11:16 | 48 min | 23 Oct |
| Dubai | 18:56 → 18:08 | 11:39 | 0 min | 11:39 | 48 min | 23 Oct |
| Delhi | 20:26 → 19:38 | 11:41 | 0 min | 11:41 | 48 min | 23 Oct |
| Kolkata | 20:26 → 19:38 | 10:57 | 0 min | 10:57 | 48 min | 23 Oct |
| Singapore | 22:56 → 22:08 | 12:25 | 0 min | 12:25 | 48 min | 23 Oct |
| Sydney | 01:56 → 01:08 | 12:16 | 0 min | 12:16 | 48 min | 23 Oct |
| Suva | 03:56 → 03:08 | 12:27 | 0 min | 12:27 | 48 min | 23 Oct |