Midday of Sunday 8 December
Saptamī is absent from madhyāhna. Not taken.
madhyāhna begins 11:08 11:56 madhyāhna ends
10:2010:4411:0811:3211:5612:2012:44
0 of 48 minutes covered
Ruling · Mitra Saptamī · 2013
Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 4 min 14 s away. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Sunday 8 December
Saptamī is absent from madhyāhna. Not taken.
0 of 48 minutes covered
Midday of Monday 9 December
Taken. The only midday Saptamī reaches.
44 of 48 minutes covered, the first 44
Aṅga
Saptamī runs from 13:40 on Sun 8 Dec to 11:52 on Mon 9 Dec.
2013-12-08T05:40:24Z → 2013-12-09T03:51:56Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 8th, 11:08–11:56 on the 9th.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 44 of 48 on the 9th.
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 254 s < 300 s
Ruling
Mitra Saptamī, Daqing, 2013: Monday 9 December.
confidence: boundary (margin)
In Daqing, Mitra Saptamī 2013 falls on Monday 9 December. Saptamī runs from 13:40 on Sun 8 Dec to 11:52 on Mon 9 Dec and covers 44 of 48 minutes of madhyāhna that midday. It is 4 min 14 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 9 Dec |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 9 Dec |
| compat-drikpanchang | Comparison profile | Mon 9 Dec |
| No institution has a recorded ruling for Daqing. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/mitra-saptami · ruleset 2026.3-draft
“S 7 Mitra saptami (purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.
Twelve places, west to east. Local clock times.
| Place | Saptamī | Madhyāhna 8th | Covered | Madhyāhna 9th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 21:40 → 19:52 | 11:21 | 48 min | 11:21 | 0 min | 8 Dec |
| Chicago | 23:40 → 21:52 | 11:19 | 48 min | 11:19 | 0 min | 8 Dec |
| Jersey City | 00:40 → 22:52 | 11:24 | 48 min | 11:25 | 0 min | 8 Dec |
| Port of Spain | 01:40 → 23:52 | 11:34 | 48 min | 11:35 | 0 min | 8 Dec |
| London | 05:40 → 03:52 | 11:28 | 48 min | 11:29 | 0 min | 8 Dec |
| Durban | 07:40 → 05:52 | 11:24 | 48 min | 11:24 | 0 min | 8 Dec |
| Dubai | 09:40 → 07:52 | 11:47 | 48 min | 11:47 | 0 min | 8 Dec |
| Delhi | 11:10 → 09:22 | 11:49 | 48 min | 11:49 | 0 min | 8 Dec |
| Kolkata | 11:10 → 09:22 | 11:04 | 42 min | 11:05 | 0 min | 8 Dec |
| Singapore | 13:40 → 11:52 | 12:32 | 0 min | 12:33 | 0 min | 9 Dec |
| Sydney | 16:40 → 14:52 | 12:23 | 0 min | 12:23 | 48 min | 9 Dec |
| Suva | 18:40 → 16:52 | 12:34 | 0 min | 12:35 | 48 min | 9 Dec |