Ruling · Śiva Śayanotsava · 2054

Sunday 19 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 172 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 18 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:41 sunsetpradoṣa ends 20:57
19:1719:4120:0520:2920:5321:1721:41

0 of 76 minutes covered

Evening of Sunday 19 July

Taken. The only evening Pūrṇimā reaches.

19:40 sunsetpradoṣa ends 20:56
19:1619:4020:0420:2820:5221:1621:40

76 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 23:49 on Sat 18 Jul to 01:47 on Mon 20 Jul.

    2054-07-18T15:48:40Z → 2054-07-19T17:47:24Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:41–20:57 on the 18th, 19:40–20:56 on the 19th.

    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 76 minutes on the 18th and 76 of 76 on the 19th.

    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 10324 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2054: Sunday 19 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2054 falls on Sunday 19 July. Pūrṇimā runs from 23:49 on Sat 18 Jul to 01:47 on Mon 20 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2054/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 19 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 19 Jul
compat-drikpanchangComparison profileSun 19 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 18thCoveredSunset 19thCoveredRuled
Los Angeles08:49 → 10:4720:0379 min20:030 min18 Jul
Chicago10:49 → 12:4720:2274 min20:210 min18 Jul
Jersey City11:49 → 13:4720:2474 min20:230 min18 Jul
Port of Spain11:49 → 13:4718:3291 min18:320 min18 Jul
London16:49 → 18:4721:0864 min21:060 min18 Jul
Durban17:49 → 19:4717:1675 min17:16108 min19 Jul
Dubai19:49 → 21:4719:1046 min19:1084 min19 Jul
Delhi21:19 → 23:1719:200 min19:1982 min19 Jul
Kolkata21:19 → 23:1718:230 min18:2385 min19 Jul
Singapore23:49 → 01:4719:160 min19:1695 min19 Jul
Sydney01:49 → 03:4717:060 min17:07111 min19 Jul
Suva03:49 → 05:4717:470 min17:48103 min19 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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