Morning of Tuesday 19 July
Taken. Pūrṇimā reaches neither morning; this is the day it falls on.
05:13 sunrisethree muhūrtas on 08:09
Pūrṇimā begins 05:57:35
04:4905:1305:3706:0106:2506:4907:1307:3708:0108:25
131 of 176 minutes covered, the last 131
Ruling · Vyāsa Pūjā · 1921
Boundaryin Datong, under the Rashtriya Panchang method. Pūrṇimā reaches the first three muhūrtas after sunrise on neither day and the rule does not say what then. Say “contested”.
One ghaṭī is 24 minutes. The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas.
Morning of Tuesday 19 July
Taken. Pūrṇimā reaches neither morning; this is the day it falls on.
131 of 176 minutes covered, the last 131
Morning of Wednesday 20 July
Pūrṇimā holds for 174 of 176 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.
174 of 176 minutes covered, the first 174
Aṅga
Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul.
1921-07-18T21:57:35Z → 1921-07-20T00:07:20Z
Kāla
The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:13–08:09 on the 19th, 05:14–08:09 on the 20th.
udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′
Rule
Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 131 of 176 minutes on the 19th and 174 of 176 on the 20th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102
Tie-break
Neither morning qualifies. The day the tithi falls on is taken.
priority: paraviddha → tithi-day · margin 112 s < 300 s
Ruling
Vyāsa Pūjā, Datong, 1921: Tuesday 19 July.
confidence: boundary (margin, absent-unstated)
In Datong, Vyāsa Pūjā 1921 falls on Tuesday 19 July. Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul, and reaches the first three muhūrtas after sunrise on neither day. It is 1 min 52 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Tue 19 Jul |
| Ahargaṇa, classical | Disc centre, no refraction | Tue 19 Jul |
| compat-drikpanchang | Comparison profile | Tue 19 Jul |
| No institution has a recorded ruling for Datong. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/vyasa-puja · ruleset 2026.3-draft
“S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.
Twelve places, west to east. Local clock times.
| Place | Pūrṇimā | Sunrise 18th | Covered | Sunrise 20th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 13:58 → 16:07 | 04:54 | 0 min | 04:56 | 0 min | 19 Jul |
| Chicago | 16:58 → 19:07 | 05:31 | 0 min | 05:33 | 0 min | 19 Jul |
| Jersey City | 17:58 → 20:07 | 05:40 | 0 min | 05:42 | 0 min | 19 Jul |
| Port of Spain | 17:58 → 20:07 | 05:52 | 0 min | 05:52 | 0 min | 19 Jul |
| London | 22:58 → 01:07 | 05:04 | 0 min | 05:06 | 0 min | 19 Jul |
| Durban | 23:58 → 02:07 | 06:49 | 0 min | 06:48 | 0 min | 19 Jul |
| Dubai | 01:58 → 04:07 | 05:39 | 0 min | 05:40 | 0 min | 19 Jul |
| Delhi | 03:28 → 05:37 | 05:34 | 0 min | 05:35 | 2 min | 19 Jul |
| Kolkata | 03:28 → 05:37 | 05:02 | 0 min | 05:03 | 35 min | 19 Jul |
| Singapore | 04:58 → 07:07 | 06:05 | 0 min | 06:05 | 62 min | 19 Jul |
| Sydney | 07:58 → 10:07 | 06:57 | 0 min | 06:56 | 122 min | 20 Jul |
| Suva | 09:58 → 12:07 | 06:38 | 0 min | 06:38 | 134 min | 20 Jul |