Evening of Thursday 4 December
Taken. The only evening Pūrṇimā reaches.
17:40 sunsetpradoṣa ends 19:26
17:1617:4018:0418:2818:5219:1619:40
106 of 106 minutes covered
Ruling · Dattātreyotpatti (Dattātreya Jayantī) · 2025
Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 542 minutes.
One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.
Evening of Thursday 4 December
Taken. The only evening Pūrṇimā reaches.
106 of 106 minutes covered
Evening of Friday 5 December
Pūrṇimā is absent from pradoṣa. Not taken.
0 of 106 minutes covered
Aṅga
Pūrṇimā runs from 08:38 on Thu 4 Dec to 04:44 on Fri 5 Dec.
2025-12-04T03:08:06Z → 2025-12-04T23:14:04Z
Kāla
Pradoṣa is 2 muhūrtas after sunset: 17:40–19:26 on the 4th, 17:41–19:27 on the 5th.
pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′
Rule
Pūrṇimā must be present during pradoṣa. It covers 106 of 106 minutes on the 4th and 0 of 106 on the 5th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Only one evening qualifies. No tie-break is needed.
priority: unstated → only-day · margin 32540 s
Ruling
Dattātreyotpatti, Ujjain, 2025: Thursday 4 December.
confidence: determinate
In Ujjain, Dattātreyotpatti (Datta Jayanti) 2025 falls on Thursday 4 December. Pūrṇimā runs from 08:38 on Thu 4 Dec to 04:44 on Fri 5 Dec and covers all of pradoṣa that evening.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Thu 4 Dec |
| Ahargaṇa, classical | Disc centre, no refraction | Thu 4 Dec |
| compat-drikpanchang | Comparison profile | Thu 4 Dec |
| No institution has a recorded ruling for Ujjain. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/dattatreyotpatti · ruleset 2026.3-draft
“S 15 Dattatreyotpatti (pradosa).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.
Twelve places, west to east. Local clock times.
| Place | Pūrṇimā | Sunset 4th | Covered | Sunset 5th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 19:08 → 15:14 | 16:43 | 0 min | 16:43 | 0 min | 3 Dec |
| Chicago | 21:08 → 17:14 | 16:19 | 55 min | 16:19 | 0 min | 4 Dec |
| Jersey City | 22:08 → 18:14 | 16:29 | 106 min | 16:28 | 0 min | 4 Dec |
| Port of Spain | 23:08 → 19:14 | 17:42 | 92 min | 17:43 | 0 min | 4 Dec |
| London | 03:08 → 23:14 | 15:53 | 128 min | 15:52 | 0 min | 4 Dec |
| Durban | 05:08 → 01:14 | 18:45 | 80 min | 18:46 | 0 min | 4 Dec |
| Dubai | 07:08 → 03:14 | 17:29 | 107 min | 17:29 | 0 min | 4 Dec |
| Delhi | 08:38 → 04:44 | 17:23 | 109 min | 17:24 | 0 min | 4 Dec |
| Kolkata | 08:38 → 04:44 | 16:51 | 106 min | 16:51 | 0 min | 4 Dec |
| Singapore | 11:08 → 07:14 | 18:56 | 96 min | 18:57 | 0 min | 4 Dec |
| Sydney | 14:08 → 10:14 | 19:54 | 78 min | 19:54 | 0 min | 4 Dec |
| Suva | 15:08 → 11:14 | 18:31 | 87 min | 18:32 | 0 min | 4 Dec |