Night of Sunday 3 September
Aṣṭamī is absent from niśītha. Not taken.
niśītha begins 00:30 01:18 niśītha ends
Aṣṭamī begins 01:27:48
23:4200:0600:3000:5401:1801:4202:06
0 of 48 minutes covered
Ruling · Janmāṣṭamī · 2045
Boundaryin Cairo, under the Rashtriya Panchang method. A threshold is only 0 min 03 s away. Say “contested”.
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Sunday 3 September
Aṣṭamī is absent from niśītha. Not taken.
0 of 48 minutes covered
Night of Monday 4 September
Taken. Aṣṭamī reaches neither night; the rule takes the second day.
0 of 48 minutes covered
Aṅga
Aṣṭamī runs from 01:28 on Mon 4 Sep to 00:30 on Tue 5 Sep.
2045-09-03T22:27:48Z → 2045-09-04T21:29:58Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 00:30–01:18 on the 3rd, 00:30–01:18 on the 4th.
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 3rd and 0 of 48 on the 4th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Neither night qualifies. The rule takes the second day.
priority: paraviddha → second-day · margin 3 s < 300 s
Ruling
Janmāṣṭamī, Cairo, 2045: Monday 4 September.
confidence: boundary (margin)
In Cairo, Janmāṣṭamī 2045 falls on Monday 4 September. Aṣṭamī runs from 01:28 on Mon 4 Sep to 00:30 on Tue 5 Sep, and reaches niśītha on neither day. It is 0 min 03 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 4 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 4 Sep |
| compat-drikpanchang | Comparison profile | Mon 4 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 3rd | Covered | Niśītha 4th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 15:28 → 14:30 | 00:28 | 48 min | 00:28 | 0 min | 3 Sep |
| Chicago | 17:28 → 16:30 | 00:26 | 48 min | 00:26 | 0 min | 3 Sep |
| Jersey City | 18:28 → 17:30 | 00:32 | 48 min | 00:31 | 0 min | 3 Sep |
| Port of Spain | 18:28 → 17:30 | 23:41 | 48 min | 23:41 | 0 min | 3 Sep |
| London | 23:28 → 22:30 | 00:36 | 48 min | 00:36 | 0 min | 3 Sep |
| Durban | 00:28 → 23:30 | 23:31 | 0 min | 23:30 | 0 min | 4 Sep |
| Dubai | 02:28 → 01:30 | 23:54 | 0 min | 23:54 | 48 min | 4 Sep |
| Delhi | 03:58 → 03:00 | 23:56 | 0 min | 23:56 | 48 min | 4 Sep |
| Kolkata | 03:58 → 03:00 | 23:12 | 0 min | 23:12 | 48 min | 4 Sep |
| Singapore | 06:28 → 05:30 | 00:40 | 0 min | 00:39 | 48 min | 4 Sep |
| Sydney | 08:28 → 07:30 | 23:30 | 0 min | 23:30 | 48 min | 4 Sep |
| Suva | 10:28 → 09:30 | 23:41 | 0 min | 23:41 | 48 min | 4 Sep |