Midday of Tuesday 4 November
Taken. The only midday Navamī reaches.
madhyāhna begins 11:46 12:34 madhyāhna ends
Navamī begins 12:00:00
10:5811:2211:4612:1012:3412:5813:22
34 of 48 minutes covered, the last 34
Ruling · Durgā Navamī · 2087
Boundaryin Datong, under the Rashtriya Panchang method. A threshold is only 2 min 59 s away. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Tuesday 4 November
Taken. The only midday Navamī reaches.
34 of 48 minutes covered, the last 34
Midday of Wednesday 5 November
Navamī is absent from madhyāhna. Not taken.
0 of 48 minutes covered
Aṅga
Navamī runs from 12:00 on Tue 4 Nov to 11:43 on Wed 5 Nov.
2087-11-04T04:00:01Z → 2087-11-05T03:43:26Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 4th, 11:46–12:34 on the 5th.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 34 of 48 minutes on the 4th and 0 of 48 on the 5th.
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 179 s < 300 s
Ruling
Durgā Navamī, Datong, 2087: Tuesday 4 November.
confidence: boundary (margin)
In Datong, Durgā Navamī 2087 falls on Tuesday 4 November. Navamī runs from 12:00 on Tue 4 Nov to 11:43 on Wed 5 Nov and covers 34 of 48 minutes of madhyāhna that midday. It is 2 min 59 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Tue 4 Nov |
| Ahargaṇa, classical | Disc centre, no refraction | Tue 4 Nov |
| compat-drikpanchang | Comparison profile | Tue 4 Nov |
| No institution has a recorded ruling for Datong. | ||
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 4th | Covered | Madhyāhna 5th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 20:00 → 19:43 | 11:13 | 48 min | 11:13 | 0 min | 4 Nov |
| Chicago | 22:00 → 21:43 | 11:10 | 48 min | 11:10 | 0 min | 4 Nov |
| Jersey City | 23:00 → 22:43 | 11:16 | 48 min | 11:16 | 0 min | 4 Nov |
| Port of Spain | 00:00 → 23:43 | 11:26 | 48 min | 11:26 | 0 min | 4 Nov |
| London | 04:00 → 03:43 | 11:20 | 48 min | 11:20 | 0 min | 4 Nov |
| Durban | 06:00 → 05:43 | 11:16 | 48 min | 11:16 | 0 min | 4 Nov |
| Dubai | 08:00 → 07:43 | 11:38 | 48 min | 11:38 | 0 min | 4 Nov |
| Delhi | 09:30 → 09:13 | 11:41 | 48 min | 11:41 | 0 min | 4 Nov |
| Kolkata | 09:30 → 09:13 | 10:56 | 48 min | 10:56 | 0 min | 4 Nov |
| Singapore | 12:00 → 11:43 | 12:24 | 48 min | 12:24 | 0 min | 4 Nov |
| Sydney | 15:00 → 14:43 | 12:15 | 0 min | 12:15 | 48 min | 5 Nov |
| Suva | 16:00 → 15:43 | 11:26 | 0 min | 11:26 | 48 min | 5 Nov |