Ruling · Śiva Śayanotsava · 2071

Saturday 11 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 198 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 11 July

Taken. The only evening Pūrṇimā reaches.

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

74 of 74 minutes covered

Evening of Sunday 12 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 14:07 on Sat 11 Jul to 16:26 on Sun 12 Jul.

    2071-07-11T06:06:33Z → 2071-07-12T08:26:21Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:45–20:59 on the 11th, 19:44–20:59 on the 12th.

    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 11th and 0 of 75 on the 12th.

    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 11878 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2071: Saturday 11 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2071 falls on Saturday 11 July. Pūrṇimā runs from 14:07 on Sat 11 Jul to 16:26 on Sun 12 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2071/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 11 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 11 Jul
compat-drikpanchangComparison profileSat 11 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 11thCoveredSunset 12thCoveredRuled
Los Angeles23:07 → 01:2620:0678 min20:060 min11 Jul
Chicago01:07 → 03:2620:2672 min20:260 min11 Jul
Jersey City02:07 → 04:2620:2873 min20:280 min11 Jul
Port of Spain02:07 → 04:2618:3390 min18:330 min11 Jul
London07:07 → 09:2621:1562 min21:140 min11 Jul
Durban08:07 → 10:2617:12109 min17:130 min11 Jul
Dubai10:07 → 12:2619:1283 min19:120 min11 Jul
Delhi11:37 → 13:5619:2281 min19:220 min11 Jul
Kolkata11:37 → 13:5618:2585 min18:250 min11 Jul
Singapore14:07 → 16:2619:1695 min19:160 min11 Jul
Sydney16:07 → 18:2617:02112 min17:0384 min11 Jul
Suva18:07 → 20:2617:4582 min17:45103 min12 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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