Sunrise of Sunday 15 March
Pratipadā does not hold at sunrise. Not taken.
06:17 sunrise
05:0505:2905:5306:1706:4107:0507:29
Absent at sunrise
Ruling · Vasantotsava · 1987
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 626 minutes.
One ghaṭī is 24 minutes. The sunrise is read as upper limb, 31′ + 16′.
Sunrise of Sunday 15 March
Pratipadā does not hold at sunrise. Not taken.
Absent at sunrise
Sunrise of Monday 16 March
Taken. The only sunrise Pratipadā holds at.
Holds at sunrise
Aṅga
Pratipadā runs from 16:43 on Sun 15 Mar to 16:42 on Mon 16 Mar.
1987-03-15T13:12:41Z → 1987-03-16T13:12:08Z
Kāla
Sunrise is at 06:17 on the 15th and 06:15 on the 16th.
sunrise: upper limb, 31′ + 16′
Rule
Pratipadā must be current at sunrise. It is not on the 15th and is 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 37569 s
Ruling
Vasantotsava, Tehran, 1987: Monday 16 March.
confidence: determinate
In Tehran, Vasantotsava 1987 falls on Monday 16 March. Pratipadā runs from 16:43 on Sun 15 Mar to 16:42 on Mon 16 Mar and is current at sunrise that day.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 16 Mar |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 16 Mar |
| compat-drikpanchang | Comparison profile | Mon 16 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 15th | Covered | Sunrise 16th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 05:13 → 05:12 | 06:04 | holds | 06:03 | no | 15 Mar |
| Chicago | 07:13 → 07:12 | 06:04 | no | 06:02 | holds | 16 Mar |
| Jersey City | 08:13 → 08:12 | 06:09 | no | 06:07 | holds | 16 Mar |
| Port of Spain | 09:13 → 09:12 | 06:14 | no | 06:13 | holds | 16 Mar |
| London | 13:13 → 13:12 | 06:16 | no | 06:14 | holds | 16 Mar |
| Durban | 15:13 → 15:12 | 05:56 | no | 05:57 | holds | 16 Mar |
| Dubai | 17:13 → 17:12 | 06:29 | no | 06:28 | holds | 16 Mar |
| Delhi | 18:43 → 18:42 | 06:32 | no | 06:31 | holds | 16 Mar |
| Kolkata | 18:43 → 18:42 | 05:46 | no | 05:45 | holds | 16 Mar |
| Singapore | 21:13 → 21:12 | 07:11 | no | 07:11 | holds | 16 Mar |
| Sydney | 23:13 → 23:12 | 05:54 | no | 05:55 | holds | 16 Mar |
| Suva | 01:13 → 01:12 | 06:09 | no | 06:09 | holds | 16 Mar |