Midday of Sunday 4 October
Taken. Both middays qualify; the rule takes the first.
madhyāhna begins 11:04 11:52 madhyāhna ends
Navamī begins 11:07:36
10:1610:4011:0411:2811:5212:1612:40
45 of 48 minutes covered, the last 45
Ruling · Mahānavamī · 1992
Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 3 min 16 s away. Say “contested”.
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.
45 of 48 minutes covered, the last 45
Midday of Monday 5 October
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Aṅga
Navamī runs from 11:08 on Sun 4 Oct to 13:20 on Mon 5 Oct.
1992-10-04T03:07:36Z → 1992-10-05T05:20:02Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 4th, 11:04–11:52 on the 5th.
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 4th and 48 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 196 s < 300 s
Ruling
Mahānavamī, Daqing, 1992: Sunday 4 October.
confidence: boundary (margin)
In Daqing, Mahānavamī 1992 falls on Sunday 4 October. Navamī runs from 11:08 on Sun 4 Oct to 13:20 on Mon 5 Oct and covers 45 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken. It is 3 min 16 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 Daqing. | ||
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 |