Evening of Tuesday 28 July
Taken. Both evenings qualify; the rule is silent, and this one is covered longer.
19:15 sunsetpradoṣa ends 20:38
18:5119:1519:3920:0320:2720:5121:15
84 of 84 minutes covered
Ruling · Śiva Śayanotsava · 2026
Boundaryin Delhi, under the Rashtriya Panchang method. Both evenings qualify and the rule does not say which to take. Say “contested”.
Decide it for
28°39′ N 77°14′ E · Asia/Kolkata · GeoNames 1273294
One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.
Evening of Tuesday 28 July
Taken. Both evenings qualify; the rule is silent, and this one is covered longer.
84 of 84 minutes covered
Evening of Wednesday 29 July
Qualifies with 52 of 84 minutes. Not taken.
52 of 84 minutes covered, the first 52
Aṅga
Pūrṇimā runs from 18:19 on Tue 28 Jul to 20:06 on Wed 29 Jul.
2026-07-28T12:49:28Z → 2026-07-29T14:35:43Z
Kāla
Pradoṣa is 2 muhūrtas after sunset: 19:15–20:38 on the 28th, 19:14–20:38 on the 29th.
pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′
Rule
Pūrṇimā must be present during pradoṣa. It covers 84 of 84 minutes on the 28th and 52 of 84 on the 29th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102
Tie-break
Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.
priority: unstated → greater-coverage · margin 1913 s
Ruling
Śiva Śayanotsava, Delhi, 2026: Tuesday 28 July.
confidence: boundary (tie-break-unstated)
In Delhi, Śiva Śayanotsava 2026 falls on Tuesday 28 July. Pūrṇimā runs from 18:19 on Tue 28 Jul to 20:06 on Wed 29 Jul and covers all of pradoṣa that evening. It also reaches the next evening for 52 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Tue 28 Jul |
| Ahargaṇa, classical | Disc centre, no refraction | Tue 28 Jul |
| compat-drikpanchang | Comparison profile | Tue 28 Jul |
| No institution has a recorded ruling for Delhi. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/shiva-shayanotsava · 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 | Sunset 28th | Covered | Sunset 29th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 05:49 → 07:36 | 19:57 | 81 min | 19:56 | 0 min | 28 Jul |
| Chicago | 07:49 → 09:36 | 20:13 | 76 min | 20:12 | 0 min | 28 Jul |
| Jersey City | 08:49 → 10:36 | 20:16 | 77 min | 20:15 | 0 min | 28 Jul |
| Port of Spain | 08:49 → 10:36 | 18:31 | 91 min | 18:30 | 0 min | 28 Jul |
| London | 13:49 → 15:36 | 20:55 | 67 min | 20:53 | 0 min | 28 Jul |
| Durban | 14:49 → 16:36 | 17:21 | 107 min | 17:22 | 0 min | 28 Jul |
| Dubai | 16:49 → 18:36 | 19:06 | 85 min | 19:05 | 0 min | 28 Jul |
| Delhi | 18:19 → 20:06 | 19:15 | 84 min | 19:14 | 52 min | 28 Jul |
| Kolkata | 18:19 → 20:06 | 18:19 | 86 min | 18:19 | 86 min | 29 Jul |
| Singapore | 20:49 → 22:36 | 19:16 | 1 min | 19:16 | 95 min | 29 Jul |
| Sydney | 22:49 → 00:36 | 17:12 | 0 min | 17:13 | 109 min | 29 Jul |
| Suva | 00:49 → 02:36 | 17:50 | 0 min | 17:51 | 102 min | 29 Jul |