Night of Wednesday 5 September
Taken. The only night Aṣṭamī reaches.
niśītha begins 23:39 00:27 niśītha ends
22:5123:1523:3900:0300:2700:5101:15
48 of 48 minutes covered
Ruling · Janmāṣṭamī · 2091
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 212 minutes.
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Wednesday 5 September
Taken. The only night Aṣṭamī reaches.
48 of 48 minutes covered
Night of Thursday 6 September
Aṣṭamī is absent from niśītha. Not taken.
0 of 48 minutes covered
Aṅga
Aṣṭamī runs from 18:24 on Wed 5 Sep to 20:07 on Thu 6 Sep.
2091-09-05T14:53:36Z → 2091-09-06T16:36:49Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 23:39–00:27 on the 5th, 23:39–00:27 on the 6th.
nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Only one night qualifies. No tie-break is needed.
priority: paraviddha → only-day · margin 12736 s
Ruling
Janmāṣṭamī, Tehran, 2091: Wednesday 5 September.
confidence: determinate
In Tehran, Janmāṣṭamī 2091 falls on Wednesday 5 September. Aṣṭamī runs from 18:24 on Wed 5 Sep to 20:07 on Thu 6 Sep and covers all of niśītha that night.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Wed 5 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Wed 5 Sep |
| compat-drikpanchang | Comparison profile | Wed 5 Sep |
| No institution has a recorded ruling for Tehran. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/janmashtami · ruleset 2026.3-draft
“K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103. The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.
Twelve places, west to east. Local clock times.
| Place | Aṣṭamī | Niśītha 5th | Covered | Niśītha 6th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 07:54 → 09:37 | 00:28 | 48 min | 00:28 | 0 min | 5 Sep |
| Chicago | 09:54 → 11:37 | 00:26 | 48 min | 00:25 | 0 min | 5 Sep |
| Jersey City | 10:54 → 12:37 | 00:31 | 48 min | 00:31 | 0 min | 5 Sep |
| Port of Spain | 10:54 → 12:37 | 23:41 | 48 min | 23:41 | 0 min | 5 Sep |
| London | 15:54 → 17:37 | 00:36 | 48 min | 00:35 | 0 min | 5 Sep |
| Durban | 16:54 → 18:37 | 23:30 | 48 min | 23:30 | 0 min | 5 Sep |
| Dubai | 18:54 → 20:37 | 23:54 | 48 min | 23:53 | 0 min | 5 Sep |
| Delhi | 20:24 → 22:07 | 23:56 | 48 min | 23:56 | 0 min | 5 Sep |
| Kolkata | 20:24 → 22:07 | 23:12 | 48 min | 23:11 | 0 min | 5 Sep |
| Singapore | 22:54 → 00:37 | 00:40 | 48 min | 00:39 | 0 min | 5 Sep |
| Sydney | 00:54 → 02:37 | 23:30 | 0 min | 23:30 | 48 min | 6 Sep |
| Suva | 02:54 → 04:37 | 23:41 | 0 min | 23:41 | 48 min | 6 Sep |