Ruling · Śiva Śayanotsava · 1975

Tuesday 22 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 369 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 Tuesday 22 July

Taken. The only evening Pūrṇimā reaches.

19:39 sunsetpradoṣa ends 20:55
19:1519:3920:0320:2720:5121:1521:39

76 of 76 minutes covered

Evening of Wednesday 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 76 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 12:29 on Tue 22 Jul to 13:28 on Wed 23 Jul.

    1975-07-22T04:29:09Z → 1975-07-23T05:28:27Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:39–20:55 on the 22nd, 19:38–20:54 on the 23rd.

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

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 76 of 76 minutes on the 22nd and 0 of 76 on the 23rd.

    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 22166 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1975: Tuesday 22 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1975 falls on Tuesday 22 July. Pūrṇimā runs from 12:29 on Tue 22 Jul to 13:28 on Wed 23 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1975/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 22 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 22 Jul
compat-drikpanchangComparison profileTue 22 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 22ndCoveredSunset 23rdCoveredRuled
Los Angeles21:29 → 22:2820:0180 min20:010 min22 Jul
Chicago23:29 → 00:2820:1974 min20:180 min22 Jul
Jersey City00:29 → 01:2820:2175 min20:210 min22 Jul
Port of Spain00:29 → 01:2818:3291 min18:320 min22 Jul
London05:29 → 06:2821:0465 min21:020 min22 Jul
Durban06:29 → 07:2817:17108 min17:180 min22 Jul
Dubai08:29 → 09:2819:0984 min19:080 min22 Jul
Delhi09:59 → 10:5819:1883 min19:180 min22 Jul
Kolkata09:59 → 10:5818:2286 min18:220 min22 Jul
Singapore11:59 → 12:5818:4695 min18:460 min22 Jul
Sydney14:29 → 15:2817:08110 min17:090 min22 Jul
Suva16:29 → 17:2817:48103 min17:490 min22 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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