Midday of Sunday 4 October
Taken. Both middays qualify; the rule takes the first.
madhyāhna begins 11:17 12:05 madhyāhna ends
10:2910:5311:1711:4112:0512:2912:53
48 of 48 minutes covered
Ruling · Mahānavamī · 1992
Boundaryin Chattogram, under the Rashtriya Panchang method. A threshold is only 3 min 06 s away. Say “contested”.
Decide it for
22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Sunday 4 October
Taken. Both middays qualify; the rule takes the first.
48 of 48 minutes covered
Midday of Monday 5 October
Qualifies with 3 of 48 minutes. Not taken.
3 of 48 minutes covered, the first 3
Aṅga
Navamī runs from 09:08 on Sun 4 Oct to 11:20 on Mon 5 Oct.
1992-10-04T03:07:36Z → 1992-10-05T05:20:02Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:17–12:05 on the 4th, 11:17–12:05 on the 5th.
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 4th and 3 of 48 on the 5th.
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 186 s < 300 s
Ruling
Mahānavamī, Chattogram, 1992: Sunday 4 October.
confidence: boundary (margin)
In Chattogram, Mahānavamī 1992 falls on Sunday 4 October. Navamī runs from 09:08 on Sun 4 Oct to 11:20 on Mon 5 Oct and covers all of madhyāhna that midday. It also reaches the next midday for 3 minutes; by the rule the first midday is taken. It is 3 min 06 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Sun 4 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Sun 4 Oct |
| compat-drikpanchang | Comparison profile | Sun 4 Oct |
| No institution has a recorded ruling for Chattogram. | ||
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 4th | Covered | Madhyāhna 5th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 20:08 → 22:20 | 12:17 | 48 min | 12:17 | 0 min | 4 Oct |
| Chicago | 22:08 → 00:20 | 12:15 | 48 min | 12:15 | 0 min | 4 Oct |
| Jersey City | 23:08 → 01:20 | 12:21 | 48 min | 12:20 | 0 min | 4 Oct |
| Port of Spain | 23:08 → 01:20 | 11:31 | 48 min | 11:30 | 0 min | 4 Oct |
| London | 04:08 → 06:20 | 12:25 | 48 min | 12:24 | 0 min | 4 Oct |
| Durban | 05:08 → 07:20 | 11:21 | 48 min | 11:20 | 0 min | 4 Oct |
| Dubai | 07:08 → 09:20 | 11:43 | 48 min | 11:43 | 0 min | 4 Oct |
| Delhi | 08:38 → 10:50 | 11:46 | 48 min | 11:45 | 0 min | 4 Oct |
| Kolkata | 08:38 → 10:50 | 11:01 | 48 min | 11:01 | 0 min | 4 Oct |
| Singapore | 11:08 → 13:20 | 12:29 | 48 min | 12:29 | 48 min | 4 Oct |
| Sydney | 13:08 → 15:20 | 11:20 | 0 min | 11:20 | 48 min | 5 Oct |
| Suva | 15:08 → 17:20 | 11:31 | 0 min | 11:31 | 48 min | 5 Oct |