Night of Friday 4 September
Aṣṭamī is absent from niśītha. Not taken.
niśītha begins 23:30 00:18 niśītha ends
Aṣṭamī begins 00:25:41
22:4223:0623:3023:5400:1800:4201:06
0 of 48 minutes covered
Ruling · Janmāṣṭamī · 2015
Boundaryin Cairo, under the Rashtriya Panchang method. A threshold is only 2 min 20 s away. Say “contested”.
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Friday 4 September
Aṣṭamī is absent from niśītha. Not taken.
0 of 48 minutes covered
Night of Saturday 5 September
Taken. The only night Aṣṭamī reaches.
2 of 48 minutes covered, the first 2
Aṅga
Aṣṭamī runs from 00:26 on Sat 5 Sep to 23:32 on Sat 5 Sep.
2015-09-04T22:25:42Z → 2015-09-05T21:32:11Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 23:30–00:18 on the 4th, 23:30–00:18 on the 5th.
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 4th and 2 of 48 on the 5th.
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 140 s < 300 s
Ruling
Janmāṣṭamī, Cairo, 2015: Saturday 5 September.
confidence: boundary (margin)
In Cairo, Janmāṣṭamī 2015 falls on Saturday 5 September. Aṣṭamī runs from 00:26 on Sat 5 Sep to 23:32 on Sat 5 Sep and covers 2 of 48 minutes of niśītha that night. It is 2 min 20 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Sat 5 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Sat 5 Sep |
| compat-drikpanchang | Comparison profile | Sat 5 Sep |
| No institution has a recorded ruling for Cairo. | ||
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 4th | Covered | Niśītha 5th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 15:26 → 14:32 | 00:28 | 48 min | 00:28 | 0 min | 4 Sep |
| Chicago | 17:26 → 16:32 | 00:26 | 48 min | 00:25 | 0 min | 4 Sep |
| Jersey City | 18:26 → 17:32 | 00:31 | 48 min | 00:31 | 0 min | 4 Sep |
| Port of Spain | 18:26 → 17:32 | 23:41 | 48 min | 23:41 | 0 min | 4 Sep |
| London | 23:26 → 22:32 | 00:36 | 48 min | 00:36 | 0 min | 4 Sep |
| Durban | 00:26 → 23:32 | 23:31 | 0 min | 23:30 | 2 min | 5 Sep |
| Dubai | 02:26 → 01:32 | 23:54 | 0 min | 23:54 | 48 min | 5 Sep |
| Delhi | 03:56 → 03:02 | 23:56 | 0 min | 23:56 | 48 min | 5 Sep |
| Kolkata | 03:56 → 03:02 | 23:12 | 0 min | 23:11 | 48 min | 5 Sep |
| Singapore | 06:26 → 05:32 | 00:40 | 0 min | 00:39 | 48 min | 5 Sep |
| Sydney | 08:26 → 07:32 | 23:30 | 0 min | 23:30 | 48 min | 5 Sep |
| Suva | 10:26 → 09:32 | 23:41 | 0 min | 23:41 | 48 min | 5 Sep |