Night of Tuesday 26 August
Qualifies with 48 of 48 minutes. Not taken.
niśītha begins 23:42 00:30 niśītha ends
Aṣṭamī begins 22:58:46
22:5423:1823:4200:0600:3000:5401:18
48 of 48 minutes covered
Ruling · Janmāṣṭamī · 1986
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 44 minutes.
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Tuesday 26 August
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Night of Wednesday 27 August
Taken. Both nights qualify; the rule takes the second.
48 of 48 minutes covered
Aṅga
Aṣṭamī runs from 22:59 on Tue 26 Aug to 01:21 on Thu 28 Aug.
1986-08-26T19:28:46Z → 1986-08-27T21:51:15Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 23:42–00:30 on the 26th, 23:42–00:30 on the 27th.
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 26th and 48 of 48 on the 27th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Both nights qualify. Paraviddhā: the second is taken.
priority: paraviddha → paraviddha · margin 2611 s
Ruling
Janmāṣṭamī, Tehran, 1986: Wednesday 27 August.
confidence: determinate
In Tehran, Janmāṣṭamī 1986 falls on Wednesday 27 August. Aṣṭamī runs from 22:59 on Tue 26 Aug to 01:21 on Thu 28 Aug and covers all of niśītha that night. It also reaches the previous night for 48 minutes; by the rule the second night is taken.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Wed 27 Aug |
| Ahargaṇa, classical | Disc centre, no refraction | Wed 27 Aug |
| compat-drikpanchang | Comparison profile | Wed 27 Aug |
| 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 26th | Covered | Niśītha 27th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 12:29 → 14:51 | 00:31 | 48 min | 00:31 | 0 min | 26 Aug |
| Chicago | 14:29 → 16:51 | 00:29 | 48 min | 00:28 | 0 min | 26 Aug |
| Jersey City | 15:29 → 17:51 | 00:34 | 48 min | 00:34 | 0 min | 26 Aug |
| Port of Spain | 15:29 → 17:51 | 23:44 | 48 min | 23:44 | 0 min | 26 Aug |
| London | 20:29 → 22:51 | 00:39 | 48 min | 00:38 | 0 min | 26 Aug |
| Durban | 21:29 → 23:51 | 23:33 | 48 min | 23:33 | 18 min | 27 Aug |
| Dubai | 23:29 → 01:51 | 23:57 | 48 min | 23:56 | 48 min | 27 Aug |
| Delhi | 00:59 → 03:21 | 23:59 | 0 min | 23:59 | 48 min | 27 Aug |
| Kolkata | 00:59 → 03:21 | 23:14 | 0 min | 23:14 | 48 min | 27 Aug |
| Singapore | 03:29 → 05:51 | 00:42 | 0 min | 00:42 | 48 min | 27 Aug |
| Sydney | 05:29 → 07:51 | 23:33 | 0 min | 23:32 | 48 min | 27 Aug |
| Suva | 07:29 → 09:51 | 23:44 | 0 min | 23:44 | 48 min | 27 Aug |