Ruling · Śiva Śayanotsava · 1946

Saturday 13 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 141 minutes.

Decide it for

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 13 July

Taken. The only evening Pūrṇimā reaches.

20:44 sunsetpradoṣa ends 21:59
20:2020:4421:0821:3221:5622:2022:44

75 of 75 minutes covered

Evening of Sunday 14 July

Pūrṇimā is absent from pradoṣa. Not taken.

20:43 sunsetpradoṣa ends 21:58
20:1920:4321:0721:3121:5522:1922:43

0 of 75 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 16:40 on Sat 13 Jul to 18:23 on Sun 14 Jul.

    1946-07-13T07:40:16Z → 1946-07-14T09:22:34Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 20:44–21:59 on the 13th, 20:43–21:58 on the 14th.

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

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 75 of 75 minutes on the 13th and 0 of 75 on the 14th.

    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 8449 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1946: Saturday 13 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1946 falls on Saturday 13 July. Pūrṇimā runs from 16:40 on Sat 13 Jul to 18:23 on Sun 14 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1946/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 13 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 13 Jul
compat-drikpanchangComparison profileSat 13 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 13thCoveredSunset 14thCoveredRuled
Los Angeles23:40 → 01:2319:0678 min19:050 min13 Jul
Chicago02:40 → 04:2320:2572 min20:240 min13 Jul
Jersey City03:40 → 05:2320:2773 min20:270 min13 Jul
Port of Spain03:40 → 05:2318:3290 min18:320 min13 Jul
London08:40 → 10:2321:1362 min21:130 min13 Jul
Durban09:40 → 11:2317:12109 min17:130 min13 Jul
Dubai11:40 → 13:2319:1183 min19:110 min13 Jul
Delhi13:10 → 14:5319:2181 min19:210 min13 Jul
Kolkata13:10 → 14:5318:2485 min18:240 min13 Jul
Singapore15:10 → 16:5318:4695 min18:460 min13 Jul
Sydney17:40 → 19:2317:0274 min17:03111 min14 Jul
Suva19:40 → 21:2317:450 min17:45103 min14 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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