Ruling · Śiva Śayanotsava · 1903

Thursday 9 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 150 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 Wednesday 8 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:46 sunsetpradoṣa ends 21:00
19:2219:4620:1020:3420:5821:2221:46

0 of 74 minutes covered

Evening of Thursday 9 July

Taken. The only evening Pūrṇimā reaches.

19:46 sunsetpradoṣa ends 21:00
19:2219:4620:1020:3420:5821:2221:46

74 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 23:30 on Wed 8 Jul to 01:43 on Fri 10 Jul.

    1903-07-08T15:29:54Z → 1903-07-09T17:43:05Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:46–21:00 on the 8th, 19:46–21:00 on the 9th.

    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 74 minutes on the 8th and 74 of 74 on the 9th.

    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 9011 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1903: Thursday 9 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1903 falls on Thursday 9 July. Pūrṇimā runs from 23:30 on Wed 8 Jul to 01:43 on Fri 10 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1903/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 9 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 9 Jul
compat-drikpanchangComparison profileThu 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 8thCoveredSunset 9thCoveredRuled
Los Angeles07:30 → 09:4319:0778 min19:070 min8 Jul
Chicago09:30 → 11:4319:2771 min19:270 min8 Jul
Jersey City10:30 → 12:4319:3072 min19:290 min8 Jul
Port of Spain11:30 → 13:4318:3290 min18:320 min8 Jul
London15:30 → 17:4320:1861 min20:170 min8 Jul
Durban17:30 → 19:4317:0989 min17:10110 min9 Jul
Dubai19:11 → 21:2418:5365 min18:5383 min9 Jul
Delhi20:51 → 23:0419:130 min19:1381 min9 Jul
Kolkata20:51 → 23:0418:160 min18:1684 min9 Jul
Singapore22:25 → 00:3818:100 min18:1095 min9 Jul
Sydney01:30 → 03:4316:590 min17:00112 min9 Jul
Suva03:25 → 05:3817:380 min17:38103 min9 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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