Sunrise of Wednesday 15 March
Taken. The only sunrise Pratipadā holds at.
Holds at sunrise
Ruling · Vasantotsava · 1911
Boundaryin Chattogram, under the Rashtriya Panchang method. A threshold is only 0 min 45 s away. Say “contested”.
Decide it for
22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733
One ghaṭī is 24 minutes. The sunrise is read as upper limb, 31′ + 16′.
Sunrise of Wednesday 15 March
Taken. The only sunrise Pratipadā holds at.
Holds at sunrise
Sunrise of Thursday 16 March
Pratipadā does not hold at sunrise. Not taken.
Absent at sunrise
Aṅga
Pratipadā runs from 05:51 on Wed 15 Mar to 05:54 on Thu 16 Mar.
1911-03-14T23:58:04Z → 1911-03-16T00:01:27Z
Kāla
Sunrise is at 05:56 on the 15th and 05:55 on the 16th.
sunrise: upper limb, 31′ + 16′
Rule
Pratipadā must be current at sunrise. It is on the 15th and is not on the 16th.
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 45 s < 300 s
Ruling
Vasantotsava, Chattogram, 1911: Wednesday 15 March.
confidence: boundary (margin)
In Chattogram, Vasantotsava 1911 falls on Wednesday 15 March. Pratipadā runs from 05:51 on Wed 15 Mar to 05:54 on Thu 16 Mar and is current at sunrise that day. It is 0 min 45 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Wed 15 Mar |
| Ahargaṇa, classical | Disc centre, no refraction | Wed 15 Mar |
| compat-drikpanchang | Comparison profile | Wed 15 Mar |
| No institution has a recorded ruling for Chattogram. | ||
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 14th | Covered | Sunrise 16th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 15:58 → 16:01 | 06:06 | no | 06:04 | no | 15 Mar |
| Chicago | 17:58 → 18:01 | 06:06 | no | 06:03 | no | 15 Mar |
| Jersey City | 18:58 → 19:01 | 06:12 | no | 06:08 | no | 15 Mar |
| Port of Spain | 19:58 → 20:01 | 06:15 | no | 06:14 | no | 15 Mar |
| London | 23:58 → 00:01 | 06:20 | no | 06:15 | no | 15 Mar |
| Durban | 01:58 → 02:01 | 05:55 | no | 05:56 | no | 15 Mar |
| Dubai | 03:39 → 03:42 | 06:12 | no | 06:10 | no | 15 Mar |
| Delhi | 05:28 → 05:31 | 06:34 | no | 06:32 | no | 15 Mar |
| Kolkata | 05:28 → 05:31 | 05:48 | no | 05:46 | no | 15 Mar |
| Singapore | 06:58 → 07:01 | 06:11 | no | 06:11 | holds | 16 Mar |
| Sydney | 09:58 → 10:01 | 05:53 | no | 05:54 | holds | 16 Mar |
| Suva | 11:53 → 11:56 | 06:04 | no | 06:04 | holds | 16 Mar |