Ruling · Śiva Śayanotsava · 1909

Saturday 3 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 28 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 2 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:47 sunsetpradoṣa ends 21:00
Pūrṇimā begins 21:28:29
19:2319:4720:1120:3520:5921:2321:47

0 of 73 minutes covered

Evening of Saturday 3 July

Taken. The only evening Pūrṇimā reaches.

19:47 sunsetpradoṣa ends 21:00
Pūrṇimā ends 20:17:08
19:2319:4720:1120:3520:5921:2321:47

30 of 73 minutes covered, the first 30

Pūrṇimā presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 21:28 on Fri 2 Jul to 20:17 on Sat 3 Jul.

    1909-07-02T13:28:29Z → 1909-07-03T12:17:08Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:47–21:00 on the 2nd, 19:47–21:00 on the 3rd.

    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 2nd and 30 of 73 on the 3rd.

    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 1697 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1909: Saturday 3 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1909 falls on Saturday 3 July. Pūrṇimā runs from 21:28 on Fri 2 Jul to 20:17 on Sat 3 Jul and covers 30 of 73 minutes of pradoṣa that evening.

ahargana.org/baoding/festivals/1909/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 3 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 3 Jul
compat-drikpanchangComparison profileSat 3 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 2ndCoveredSunset 3rdCoveredRuled
Los Angeles05:28 → 04:1719:0877 min19:080 min2 Jul
Chicago07:28 → 06:1719:2971 min19:290 min2 Jul
Jersey City08:28 → 07:1719:3172 min19:310 min2 Jul
Port of Spain09:28 → 08:1718:3290 min18:320 min2 Jul
London13:28 → 12:1720:2060 min20:200 min2 Jul
Durban15:28 → 14:1717:07110 min17:070 min2 Jul
Dubai17:09 → 15:5818:5383 min18:530 min2 Jul
Delhi18:58 → 17:4719:2381 min19:230 min2 Jul
Kolkata18:58 → 17:4718:2550 min18:250 min2 Jul
Singapore20:28 → 19:1718:140 min18:1463 min3 Jul
Sydney23:28 → 22:1716:570 min16:57113 min3 Jul
Suva01:23 → 00:1217:360 min17:37104 min3 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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