Night of Sunday 30 August
Qualifies with 48 of 48 minutes. Not taken.
niśītha begins 23:41 00:29 niśītha ends
22:5323:1723:4100:0500:2900:5301:17
48 of 48 minutes covered
Ruling · Janmāṣṭamī · 2048
Boundaryin Tehran, under the Rashtriya Panchang method. A threshold is only 0 min 43 s away. Say “contested”.
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Sunday 30 August
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Night of Monday 31 August
Taken. Both nights qualify; the rule takes the second.
47 of 48 minutes covered, the first 47
Aṅga
Aṣṭamī runs from 22:00 on Sun 30 Aug to 00:28 on Tue 1 Sep.
2048-08-30T18:29:57Z → 2048-08-31T20:57:54Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 23:41–00:29 on the 30th, 23:41–00:29 on the 31st.
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 30th and 47 of 48 on the 31st.
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 43 s < 300 s
Ruling
Janmāṣṭamī, Tehran, 2048: Monday 31 August.
confidence: boundary (margin)
In Tehran, Janmāṣṭamī 2048 falls on Monday 31 August. Aṣṭamī runs from 22:00 on Sun 30 Aug to 00:28 on Tue 1 Sep and covers 47 of 48 minutes of niśītha that night. It also reaches the previous night for 48 minutes; by the rule the second night is taken. It is 0 min 43 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 31 Aug |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 31 Aug |
| compat-drikpanchang | Comparison profile | Mon 31 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 30th | Covered | Niśītha 31st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 11:30 → 13:58 | 00:29 | 48 min | 00:29 | 0 min | 30 Aug |
| Chicago | 13:30 → 15:58 | 00:27 | 48 min | 00:27 | 0 min | 30 Aug |
| Jersey City | 14:30 → 16:58 | 00:33 | 48 min | 00:33 | 0 min | 30 Aug |
| Port of Spain | 14:30 → 16:58 | 23:42 | 48 min | 23:42 | 0 min | 30 Aug |
| London | 19:30 → 21:58 | 00:37 | 48 min | 00:37 | 0 min | 30 Aug |
| Durban | 20:30 → 22:58 | 23:32 | 48 min | 23:32 | 0 min | 30 Aug |
| Dubai | 22:30 → 00:58 | 23:55 | 48 min | 23:55 | 48 min | 31 Aug |
| Delhi | 00:00 → 02:28 | 23:58 | 46 min | 23:57 | 48 min | 31 Aug |
| Kolkata | 00:00 → 02:28 | 23:13 | 1 min | 23:13 | 48 min | 31 Aug |
| Singapore | 02:30 → 04:58 | 00:41 | 0 min | 00:41 | 48 min | 31 Aug |
| Sydney | 04:30 → 06:58 | 23:31 | 0 min | 23:31 | 48 min | 31 Aug |
| Suva | 06:30 → 08:58 | 23:43 | 0 min | 23:42 | 48 min | 31 Aug |