Night of Wednesday 10 August
Aṣṭamī is absent from niśītha. Not taken.
niśītha begins 23:46 00:34 niśītha ends
22:5823:2223:4600:1000:3400:5801:22
0 of 48 minutes covered
Ruling · Janmāṣṭamī · 2039
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 569 minutes.
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Wednesday 10 August
Aṣṭamī is absent from niśītha. Not taken.
0 of 48 minutes covered
Night of Thursday 11 August
Taken. The only night Aṣṭamī reaches.
48 of 48 minutes covered
Aṅga
Aṣṭamī runs from 10:03 on Thu 11 Aug to 12:15 on Fri 12 Aug.
2039-08-11T06:33:04Z → 2039-08-12T08:45:27Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 23:46–00:34 on the 10th, 23:46–00:34 on the 11th.
nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Aṣṭamī must be present during niśītha. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.
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 34150 s
Ruling
Janmāṣṭamī, Tehran, 2039: Thursday 11 August.
confidence: determinate
In Tehran, Janmāṣṭamī 2039 falls on Thursday 11 August. Aṣṭamī runs from 10:03 on Thu 11 Aug to 12:15 on Fri 12 Aug and covers all of niśītha that night.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Thu 11 Aug |
| Ahargaṇa, classical | Disc centre, no refraction | Thu 11 Aug |
| compat-drikpanchang | Comparison profile | Thu 11 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 11th | Covered | Niśītha 12th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 23:33 → 01:45 | 00:34 | 48 min | 00:34 | 0 min | 11 Aug |
| Chicago | 01:33 → 03:45 | 00:32 | 48 min | 00:32 | 0 min | 11 Aug |
| Jersey City | 02:33 → 04:45 | 00:38 | 48 min | 00:38 | 0 min | 11 Aug |
| Port of Spain | 02:33 → 04:45 | 23:47 | 48 min | 23:47 | 0 min | 11 Aug |
| London | 07:33 → 09:45 | 00:42 | 48 min | 00:42 | 0 min | 11 Aug |
| Durban | 08:33 → 10:45 | 23:37 | 48 min | 23:37 | 0 min | 11 Aug |
| Dubai | 10:33 → 12:45 | 00:00 | 48 min | 00:00 | 0 min | 11 Aug |
| Delhi | 12:03 → 14:15 | 00:02 | 48 min | 00:02 | 0 min | 11 Aug |
| Kolkata | 12:03 → 14:15 | 23:18 | 48 min | 23:18 | 0 min | 11 Aug |
| Singapore | 14:33 → 16:45 | 00:46 | 48 min | 00:46 | 0 min | 11 Aug |
| Sydney | 16:33 → 18:45 | 23:36 | 48 min | 23:36 | 0 min | 11 Aug |
| Suva | 18:33 → 20:45 | 23:47 | 48 min | 23:47 | 0 min | 11 Aug |