Ruling · Śiva Śayanotsava · 2098

Saturday 12 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 67 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 12 July

Taken. The only evening Pūrṇimā reaches.

19:44 sunsetpradoṣa ends 20:59
19:2019:4420:0820:3220:5621:2021:44

75 of 75 minutes covered

Evening of Sunday 13 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:44 sunsetpradoṣa ends 20:59
19:2019:4420:0820:3220:5621:2021:44

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 16:37 on Sat 12 Jul to 18:37 on Sun 13 Jul.

    2098-07-12T08:36:44Z → 2098-07-13T10:36:59Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:44–20:59 on the 12th, 19:44–20:59 on the 13th.

    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 12th and 0 of 75 on the 13th.

    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 4015 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2098: Saturday 12 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2098 falls on Saturday 12 July. Pūrṇimā runs from 16:37 on Sat 12 Jul to 18:37 on Sun 13 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2098/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 12 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 12 Jul
compat-drikpanchangComparison profileSat 12 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 12thCoveredSunset 13thCoveredRuled
Los Angeles01:37 → 03:3720:0678 min20:060 min12 Jul
Chicago03:37 → 05:3720:2672 min20:250 min12 Jul
Jersey City04:37 → 06:3720:2873 min20:270 min12 Jul
Port of Spain04:37 → 06:3718:3390 min18:330 min12 Jul
London09:37 → 11:3721:1462 min21:130 min12 Jul
Durban10:37 → 12:3717:13109 min17:140 min12 Jul
Dubai12:37 → 14:3719:1284 min19:120 min12 Jul
Delhi14:07 → 16:0719:2282 min19:220 min12 Jul
Kolkata14:07 → 16:0718:2585 min18:250 min12 Jul
Singapore16:37 → 18:3719:1695 min19:160 min12 Jul
Sydney18:37 → 20:3717:0318 min17:04111 min13 Jul
Suva20:37 → 22:3717:460 min17:46103 min13 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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