Ruling · Śiva Śayanotsava · 1983

Sunday 24 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 492 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

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

Evening of Saturday 23 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:38 sunsetpradoṣa ends 20:54
19:1419:3820:0220:2620:5021:1421:38

0 of 77 minutes covered

Evening of Sunday 24 July

Taken. The only evening Pūrṇimā reaches.

19:37 sunsetpradoṣa ends 20:54
19:1319:3720:0120:2520:4921:1321:37

77 of 77 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 05:06 on Sun 24 Jul to 07:27 on Mon 25 Jul.

    1983-07-23T21:06:12Z → 1983-07-24T23:26:52Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:38–20:54 on the 23rd, 19:37–20:54 on the 24th.

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

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 0 of 77 minutes on the 23rd and 77 of 77 on the 24th.

    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 29512 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1983: Sunday 24 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1983 falls on Sunday 24 July. Pūrṇimā runs from 05:06 on Sun 24 Jul to 07:27 on Mon 25 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1983/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 24 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 24 Jul
compat-drikpanchangComparison profileSun 24 Jul
No institution has a recorded ruling for Baoding.

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 23rdCoveredSunset 24thCoveredRuled
Los Angeles14:06 → 16:2720:0180 min20:000 min23 Jul
Chicago16:06 → 18:2720:1874 min20:170 min23 Jul
Jersey City17:06 → 19:2720:2175 min20:200 min23 Jul
Port of Spain17:06 → 19:2718:3291 min18:3155 min23 Jul
London22:06 → 00:2721:021 min21:0166 min24 Jul
Durban23:06 → 01:2717:180 min17:18108 min24 Jul
Dubai01:06 → 03:2719:080 min19:0885 min24 Jul
Delhi02:36 → 04:5719:180 min19:1783 min24 Jul
Kolkata02:36 → 04:5718:220 min18:2186 min24 Jul
Singapore05:06 → 07:2719:160 min19:1695 min24 Jul
Sydney07:06 → 09:2717:090 min17:09110 min24 Jul
Suva09:06 → 11:2717:490 min17:49102 min24 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

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