Sunrise of Sunday 28 February
Pratipadā does not hold at sunrise. Not taken.
06:36 sunrise
05:2405:4806:1206:3607:0007:2407:48
Absent at sunrise
Ruling · Vasantotsava · 2010
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 597 minutes.
One ghaṭī is 24 minutes. The sunrise is read as upper limb, 31′ + 16′.
Sunrise of Sunday 28 February
Pratipadā does not hold at sunrise. Not taken.
Absent at sunrise
Sunrise of Monday 1 March
Taken. The only sunrise Pratipadā holds at.
Holds at sunrise
Aṅga
Pratipadā runs from 20:08 on Sun 28 Feb to 16:32 on Mon 1 Mar.
2010-02-28T16:37:52Z → 2010-03-01T13:02:01Z
Kāla
Sunrise is at 06:36 on the 28th and 06:35 on the 1st.
sunrise: upper limb, 31′ + 16′
Rule
Pratipadā must be current at sunrise. It is not on the 28th and is on the 1st.
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 35820 s
Ruling
Vasantotsava, Tehran, 2010: Monday 1 March.
confidence: determinate
In Tehran, Vasantotsava 2010 falls on Monday 1 March. Pratipadā runs from 20:08 on Sun 28 Feb to 16:32 on Mon 1 Mar and is current at sunrise that day.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 1 Mar |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 1 Mar |
| compat-drikpanchang | Comparison profile | Mon 1 Mar |
| No institution has a recorded ruling for Tehran. | ||
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 28th | Covered | Sunrise 1st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 08:38 → 05:02 | 06:23 | no | 06:22 | no | 28 Feb |
| Chicago | 10:38 → 07:02 | 06:27 | no | 06:26 | holds | 1 Mar |
| Jersey City | 11:38 → 08:02 | 06:32 | no | 06:31 | holds | 1 Mar |
| Port of Spain | 12:38 → 09:02 | 06:21 | no | 06:21 | holds | 1 Mar |
| London | 16:38 → 13:02 | 06:49 | no | 06:46 | holds | 1 Mar |
| Durban | 18:38 → 15:02 | 05:46 | no | 05:47 | holds | 1 Mar |
| Dubai | 20:38 → 17:02 | 06:43 | no | 06:42 | holds | 1 Mar |
| Delhi | 22:08 → 18:32 | 06:48 | no | 06:47 | holds | 1 Mar |
| Kolkata | 22:08 → 18:32 | 05:59 | no | 05:58 | holds | 1 Mar |
| Singapore | 00:38 → 21:02 | 07:15 | no | 07:15 | holds | 1 Mar |
| Sydney | 03:38 → 00:02 | 06:42 | no | 06:43 | holds | 1 Mar |
| Suva | 05:38 → 02:02 | 07:05 | no | 07:05 | holds | 1 Mar |