Ruling · Śiva Śayanotsava · 1966

Saturday 2 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 367 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 Friday 1 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:47 sunsetpradoṣa ends 21:00
19:2319:4720:1120:3520:5921:2321:47

0 of 73 minutes covered

Evening of Saturday 2 July

Taken. The only evening Pūrṇimā reaches.

19:47 sunsetpradoṣa ends 21:00
19:2319:4720:1120:3520:5921:2321:47

73 of 73 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 03:08 on Sat 2 Jul to 03:36 on Sun 3 Jul.

    1966-07-01T19:07:47Z → 1966-07-02T19:36:18Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:47–21:00 on the 1st, 19:47–21:00 on the 2nd.

    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 73 minutes on the 1st and 73 of 73 on the 2nd.

    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 22047 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1966: Saturday 2 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1966 falls on Saturday 2 July. Pūrṇimā runs from 03:08 on Sat 2 Jul to 03:36 on Sun 3 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1966/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 2 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 2 Jul
compat-drikpanchangComparison profileSat 2 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 1stCoveredSunset 2ndCoveredRuled
Los Angeles12:08 → 12:3620:0877 min20:080 min1 Jul
Chicago14:08 → 14:3620:2971 min20:290 min1 Jul
Jersey City15:08 → 15:3620:3172 min20:310 min1 Jul
Port of Spain15:08 → 15:3618:3290 min18:320 min1 Jul
London20:08 → 20:3621:2160 min21:200 min1 Jul
Durban21:08 → 21:3617:070 min17:07110 min2 Jul
Dubai23:08 → 23:3619:120 min19:1283 min2 Jul
Delhi00:38 → 01:0619:230 min19:2381 min2 Jul
Kolkata00:38 → 01:0618:250 min18:2584 min2 Jul
Singapore02:38 → 03:0618:440 min18:4495 min2 Jul
Sydney05:08 → 05:3616:560 min16:57113 min2 Jul
Suva07:08 → 07:3617:410 min17:42104 min2 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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