Sunrise of Wednesday 21 March
Pratipadā does not hold at sunrise. Not taken.
06:29 sunrise
05:1705:4106:0506:2906:5307:1707:41
Absent at sunrise
Ruling · Vasantotsava · 2057
Boundaryin Datong, under the Rashtriya Panchang method. A threshold is only 4 min 31 s away. Say “contested”.
One ghaṭī is 24 minutes. The sunrise is read as upper limb, 31′ + 16′.
Sunrise of Wednesday 21 March
Pratipadā does not hold at sunrise. Not taken.
Absent at sunrise
Sunrise of Thursday 22 March
Taken. The only sunrise Pratipadā holds at.
Holds at sunrise
Aṅga
Pratipadā runs from 08:45 on Wed 21 Mar to 06:32 on Thu 22 Mar.
2057-03-21T00:45:18Z → 2057-03-21T22:31:49Z
Kāla
Sunrise is at 06:29 on the 21st and 06:27 on the 22nd.
sunrise: upper limb, 31′ + 16′
Rule
Pratipadā must be current at sunrise. It is not on the 21st and is on the 22nd.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105
Tie-break
Only one sunrise qualifies. No tie-break is needed.
priority: purvaviddha → only-day · margin 271 s < 300 s
Ruling
Vasantotsava, Datong, 2057: Thursday 22 March.
confidence: boundary (margin)
In Datong, Vasantotsava 2057 falls on Thursday 22 March. Pratipadā runs from 08:45 on Wed 21 Mar to 06:32 on Thu 22 Mar and is current at sunrise that day. It is 4 min 31 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Thu 22 Mar |
| Ahargaṇa, classical | Disc centre, no refraction | Thu 22 Mar |
| compat-drikpanchang | Comparison profile | Thu 22 Mar |
| No institution has a recorded ruling for Datong. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/vasantotsava · ruleset 2026.3-draft
“K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.
Twelve places, west to east. Local clock times.
| Place | Pratipadā | Sunrise 21st | Covered | Sunrise 22nd | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 17:45 → 15:32 | 06:55 | holds | 06:53 | no | 21 Mar |
| Chicago | 19:45 → 17:32 | 06:52 | holds | 06:50 | no | 21 Mar |
| Jersey City | 20:45 → 18:32 | 06:57 | holds | 06:56 | no | 21 Mar |
| Port of Spain | 20:45 → 18:32 | 06:10 | holds | 06:09 | no | 21 Mar |
| London | 00:45 → 22:32 | 06:00 | holds | 05:58 | no | 21 Mar |
| Durban | 02:45 → 00:32 | 06:00 | holds | 06:01 | no | 21 Mar |
| Dubai | 04:45 → 02:32 | 06:22 | holds | 06:21 | no | 21 Mar |
| Delhi | 06:15 → 04:02 | 06:24 | holds | 06:23 | no | 21 Mar |
| Kolkata | 06:15 → 04:02 | 05:40 | no | 05:39 | no | 21 Mar |
| Singapore | 08:45 → 06:32 | 07:09 | no | 07:08 | no | 21 Mar |
| Sydney | 11:45 → 09:32 | 06:59 | no | 07:00 | holds | 22 Mar |
| Suva | 12:45 → 10:32 | 06:11 | no | 06:11 | holds | 22 Mar |