Midday of Friday 17 November
Taken. Both middays qualify; the rule takes the first.
madhyāhna begins 11:01 11:49 madhyāhna ends
Navamī begins 11:00:02
10:1310:3711:0111:2511:4912:1312:37
48 of 48 minutes covered
Ruling · Durgā Navamī · 1950
Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 0 min 35 s away. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Friday 17 November
Taken. Both middays qualify; the rule takes the first.
48 of 48 minutes covered
Midday of Saturday 18 November
Qualifies with 21 of 48 minutes. Not taken.
21 of 48 minutes covered, the first 21
Aṅga
Navamī runs from 11:00 on Fri 17 Nov to 11:22 on Sat 18 Nov.
1950-11-17T03:00:03Z → 1950-11-18T03:22:03Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:01–11:49 on the 17th, 11:01–11:49 on the 18th.
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 17th and 21 of 48 on the 18th.
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 35 s < 300 s
Ruling
Durgā Navamī, Daqing, 1950: Friday 17 November.
confidence: boundary (margin)
In Daqing, Durgā Navamī 1950 falls on Friday 17 November. Navamī runs from 11:00 on Fri 17 Nov to 11:22 on Sat 18 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 21 minutes; by the rule the first midday is taken. It is 0 min 35 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Fri 17 Nov |
| Ahargaṇa, classical | Disc centre, no refraction | Fri 17 Nov |
| compat-drikpanchang | Comparison profile | Fri 17 Nov |
| No institution has a recorded ruling for Daqing. | ||
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 17th | Covered | Madhyāhna 18th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 19:00 → 19:22 | 11:14 | 48 min | 11:14 | 0 min | 17 Nov |
| Chicago | 21:00 → 21:22 | 11:11 | 48 min | 11:12 | 0 min | 17 Nov |
| Jersey City | 22:00 → 22:22 | 11:17 | 48 min | 11:17 | 0 min | 17 Nov |
| Port of Spain | 23:00 → 23:22 | 11:27 | 48 min | 11:27 | 0 min | 17 Nov |
| London | 03:00 → 03:22 | 11:21 | 48 min | 11:21 | 0 min | 17 Nov |
| Durban | 05:00 → 05:22 | 11:17 | 48 min | 11:17 | 0 min | 17 Nov |
| Dubai | 07:00 → 07:22 | 11:40 | 48 min | 11:40 | 0 min | 17 Nov |
| Delhi | 08:30 → 08:52 | 11:42 | 48 min | 11:42 | 0 min | 17 Nov |
| Kolkata | 08:30 → 08:52 | 10:57 | 48 min | 10:58 | 0 min | 17 Nov |
| Singapore | 10:30 → 10:52 | 11:55 | 48 min | 11:56 | 0 min | 17 Nov |
| Sydney | 13:00 → 13:22 | 11:16 | 0 min | 11:16 | 48 min | 18 Nov |
| Suva | 15:00 → 15:22 | 11:27 | 0 min | 11:27 | 48 min | 18 Nov |