Ruling · Śiva Śayanotsava · 2026

Tuesday 28 July

Determinatein Durban, under the Rashtriya Panchang method. Clear of every threshold by 46 minutes.

Decide it for

DurbanDelhiKolkataSingaporeSydneyJersey City

29°51′ S 31°02′ E · Africa/Johannesburg · GeoNames 1007311

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Tuesday 28 July

Taken. The only evening Pūrṇimā reaches.

17:21 sunsetpradoṣa ends 19:08
16:5717:2117:4518:0918:3318:5719:21

107 of 107 minutes covered

Evening of Wednesday 29 July

Pūrṇimā is absent from pradoṣa. Not taken.

17:22 sunsetpradoṣa ends 19:08
16:5817:2217:4618:1018:3418:5819:22

0 of 107 minutes covered

Pūrṇimā presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 14:49 on Tue 28 Jul to 16:36 on Wed 29 Jul.

    2026-07-28T12:49:28Z → 2026-07-29T14:35:43Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:21–19:08 on the 28th, 17:22–19:08 on the 29th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 107 of 107 minutes on the 28th and 0 of 107 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 2752 s

  5. 05

    Ruling

    Śiva Śayanotsava, Durban, 2026: Tuesday 28 July.

    confidence: determinate

Say it like this

In Durban, Śiva Śayanotsava 2026 falls on Tuesday 28 July. Pūrṇimā runs from 14:49 on Tue 28 Jul to 16:36 on Wed 29 Jul and covers all of pradoṣa that evening.

ahargana.org/durban/festivals/2026/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 28 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 28 Jul
compat-drikpanchangComparison profileTue 28 Jul
No institution has a recorded ruling for Durban.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/shiva-shayanotsava · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

“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.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāSunset 28thCoveredSunset 29thCoveredRuled
Los Angeles05:49 → 07:3619:5781 min19:560 min28 Jul
Chicago07:49 → 09:3620:1376 min20:120 min28 Jul
Jersey City08:49 → 10:3620:1677 min20:150 min28 Jul
Port of Spain08:49 → 10:3618:3191 min18:300 min28 Jul
London13:49 → 15:3620:5567 min20:530 min28 Jul
Durban14:49 → 16:3617:21107 min17:220 min28 Jul
Dubai16:49 → 18:3619:0685 min19:050 min28 Jul
Delhi18:19 → 20:0619:1584 min19:1452 min28 Jul
Kolkata18:19 → 20:0618:1986 min18:1986 min29 Jul
Singapore20:49 → 22:3619:161 min19:1695 min29 Jul
Sydney22:49 → 00:3617:120 min17:13109 min29 Jul
Suva00:49 → 02:3617:500 min17:51102 min29 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shiva-shayanotsava@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s