Ruling · Śiva Śayanotsava · 1949

Saturday 9 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 194 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 9 July

Taken. The only evening Pūrṇimā reaches.

19:45 sunsetpradoṣa ends 20:59
19:2119:4520:0920:3320:5721:2121:45

74 of 74 minutes covered

Evening of Sunday 10 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:45 sunsetpradoṣa ends 20:59
19:2119:4520:0920:3320:5721:2121:45

0 of 74 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 16:31 on Sat 9 Jul to 15:41 on Sun 10 Jul.

    1949-07-09T08:31:16Z → 1949-07-10T07:41:09Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:45–20:59 on the 9th, 19:45–20:59 on the 10th.

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

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 74 of 74 minutes on the 9th and 0 of 74 on the 10th.

    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 11644 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1949: Saturday 9 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1949 falls on Saturday 9 July. Pūrṇimā runs from 16:31 on Sat 9 Jul to 15:41 on Sun 10 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1949/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 9 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 9 Jul
compat-drikpanchangComparison profileSat 9 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 9thCoveredSunset 10thCoveredRuled
Los Angeles00:31 → 23:4119:0778 min19:060 min9 Jul
Chicago03:31 → 02:4120:2772 min20:260 min9 Jul
Jersey City04:31 → 03:4120:2973 min20:290 min9 Jul
Port of Spain04:31 → 03:4118:3290 min18:320 min9 Jul
London09:31 → 08:4121:1661 min21:160 min9 Jul
Durban10:31 → 09:4117:10109 min17:110 min9 Jul
Dubai12:31 → 11:4119:1283 min19:120 min9 Jul
Delhi14:01 → 13:1119:2281 min19:220 min9 Jul
Kolkata14:01 → 13:1118:2585 min18:250 min9 Jul
Singapore16:01 → 15:1118:4595 min18:450 min9 Jul
Sydney18:31 → 17:4117:0021 min17:0140 min10 Jul
Suva20:31 → 19:4117:440 min17:44103 min10 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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