Ruling · Śiva Śayanotsava · 1971

Wednesday 7 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 8 min 15 s.

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 Wednesday 7 July

Taken. The only evening Pūrṇimā reaches.

19:46 sunsetpradoṣa ends 21:00
Pūrṇimā begins 19:54:19
19:2219:4620:1020:3420:5821:2221:46

66 of 74 minutes covered, the last 66

Evening of Thursday 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

Pūrṇimā presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 19:54 on Wed 7 Jul to 18:37 on Thu 8 Jul.

    1971-07-07T11:54:19Z → 1971-07-08T10:36:35Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:46–21:00 on the 7th, 19:46–21:00 on the 8th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 66 of 74 minutes on the 7th and 0 of 74 on the 8th.

    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 495 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1971: Wednesday 7 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1971 falls on Wednesday 7 July. Pūrṇimā runs from 19:54 on Wed 7 Jul to 18:37 on Thu 8 Jul and covers 66 of 74 minutes of pradoṣa that evening.

ahargana.org/baoding/festivals/1971/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 7 Jul
Ahargaṇa, classicalDisc centre, no refractionWed 7 Jul
compat-drikpanchangComparison profileWed 7 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 7thCoveredSunset 8thCoveredRuled
Los Angeles04:54 → 03:3720:0777 min20:070 min7 Jul
Chicago06:54 → 05:3720:2871 min20:270 min7 Jul
Jersey City07:54 → 06:3720:3072 min20:300 min7 Jul
Port of Spain07:54 → 06:3718:3290 min18:320 min7 Jul
London12:54 → 11:3721:1861 min21:170 min7 Jul
Durban13:54 → 12:3717:09110 min17:100 min7 Jul
Dubai15:54 → 14:3719:1283 min19:120 min7 Jul
Delhi17:24 → 16:0719:2281 min19:220 min7 Jul
Kolkata17:24 → 16:0718:2584 min18:250 min7 Jul
Singapore19:24 → 18:0718:4555 min18:450 min7 Jul
Sydney21:54 → 20:3716:590 min17:00112 min8 Jul
Suva23:54 → 22:3717:430 min17:43103 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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