Ruling · Śiva Śayanotsava · 2017

Saturday 8 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 459 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 8 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

Evening of Sunday 9 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:45 sunsetpradoṣa ends 20:59
19:2119:4520:0920:3320:5721:2121:45

0 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 10:01 on Sat 8 Jul to 12:07 on Sun 9 Jul.

    2017-07-08T02:01:27Z → 2017-07-09T04:06:34Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:46–21:00 on the 8th, 19:45–20:59 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 74 of 74 minutes on the 8th and 0 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 27519 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2017: Saturday 8 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2017 falls on Saturday 8 July. Pūrṇimā runs from 10:01 on Sat 8 Jul to 12:07 on Sun 9 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2017/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 8 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 8 Jul
compat-drikpanchangComparison profileSat 8 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 Angeles19:01 → 21:0720:0760 min20:070 min7 Jul
Chicago21:01 → 23:0720:2772 min20:270 min8 Jul
Jersey City22:01 → 00:0720:2973 min20:290 min8 Jul
Port of Spain22:01 → 00:0718:3290 min18:330 min8 Jul
London03:01 → 05:0721:1761 min21:160 min8 Jul
Durban04:01 → 06:0717:10110 min17:110 min8 Jul
Dubai06:01 → 08:0719:1283 min19:120 min8 Jul
Delhi07:31 → 09:3719:2281 min19:220 min8 Jul
Kolkata07:31 → 09:3718:2585 min18:250 min8 Jul
Singapore10:01 → 12:0719:1595 min19:150 min8 Jul
Sydney12:01 → 14:0717:00112 min17:010 min8 Jul
Suva14:01 → 16:0717:44103 min17:440 min8 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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