Midday of Thursday 8 September
Qualifies with 16 of 48 minutes. Not taken.
madhyāhna begins 11:52 12:40 madhyāhna ends
Dvādaśī begins 12:24:11
11:0411:2811:5212:1612:4013:0413:28
16 of 48 minutes covered, the last 16
Ruling · Vāmana Jayantī · 2011
Boundaryin Baoding, under the Rashtriya Panchang method. Both middays qualify and the rule does not say which to take. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Thursday 8 September
Qualifies with 16 of 48 minutes. Not taken.
16 of 48 minutes covered, the last 16
Midday of Friday 9 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
48 of 48 minutes covered
Aṅga
Dvādaśī runs from 12:24 on Thu 8 Sep to 13:07 on Fri 9 Sep.
2011-09-08T04:24:12Z → 2011-09-09T05:07:00Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 8th, 11:51–12:39 on the 9th.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Dvādaśī must be present during madhyāhna. It covers 16 of 48 minutes on the 8th and 48 of 48 on the 9th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.
priority: unstated → greater-coverage · margin 932 s
Ruling
Vāmana Jayantī, Baoding, 2011: Friday 9 September.
confidence: boundary (tie-break-unstated)
In Baoding, Vāmana Jayantī 2011 falls on Friday 9 September. Dvādaśī runs from 12:24 on Thu 8 Sep to 13:07 on Fri 9 Sep and covers all of madhyāhna that midday. It also reaches the previous midday for 16 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Fri 9 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Fri 9 Sep |
| compat-drikpanchang | Comparison profile | Fri 9 Sep |
| No institution has a recorded ruling for Baoding. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/vamana-jayanti · ruleset 2026.3-draft
“S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.
Twelve places, west to east. Local clock times.
| Place | Dvādaśī | Madhyāhna 8th | Covered | Madhyāhna 9th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 21:24 → 22:07 | 12:26 | 48 min | 12:26 | 0 min | 8 Sep |
| Chicago | 23:24 → 00:07 | 12:24 | 48 min | 12:24 | 0 min | 8 Sep |
| Jersey City | 00:24 → 01:07 | 12:30 | 48 min | 12:29 | 0 min | 8 Sep |
| Port of Spain | 00:24 → 01:07 | 11:40 | 48 min | 11:39 | 0 min | 8 Sep |
| London | 05:24 → 06:07 | 12:34 | 48 min | 12:33 | 0 min | 8 Sep |
| Durban | 06:24 → 07:07 | 11:30 | 48 min | 11:30 | 0 min | 8 Sep |
| Dubai | 08:24 → 09:07 | 11:52 | 48 min | 11:52 | 0 min | 8 Sep |
| Delhi | 09:54 → 10:37 | 11:55 | 48 min | 11:54 | 0 min | 8 Sep |
| Kolkata | 09:54 → 10:37 | 11:10 | 48 min | 11:10 | 0 min | 8 Sep |
| Singapore | 12:24 → 13:07 | 12:38 | 48 min | 12:38 | 29 min | 8 Sep |
| Sydney | 14:24 → 15:07 | 11:29 | 0 min | 11:29 | 48 min | 9 Sep |
| Suva | 16:24 → 17:07 | 11:40 | 0 min | 11:40 | 48 min | 9 Sep |