Ruling · Śiva Śayanotsava · 1965

Tuesday 13 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 99 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 Monday 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

Evening of Tuesday 13 July

Taken. The only evening Pūrṇimā reaches.

19:44 sunsetpradoṣa ends 20:58
19:2019:4420:0820:3220:5621:2021:44

75 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 22:38 on Mon 12 Jul to 01:01 on Wed 14 Jul.

    1965-07-12T14:37:47Z → 1965-07-13T17:01:22Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:44–20:59 on the 12th, 19:44–20:58 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 0 of 75 minutes on the 12th and 75 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 5945 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1965: Tuesday 13 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1965 falls on Tuesday 13 July. Pūrṇimā runs from 22:38 on Mon 12 Jul to 01:01 on Wed 14 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1965/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 13 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 13 Jul
compat-drikpanchangComparison profileTue 13 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 Angeles07:38 → 10:0120:0678 min20:050 min12 Jul
Chicago09:38 → 12:0120:2572 min20:250 min12 Jul
Jersey City10:38 → 13:0120:2873 min20:270 min12 Jul
Port of Spain10:38 → 13:0118:3290 min18:320 min12 Jul
London15:38 → 18:0121:1462 min21:130 min12 Jul
Durban16:38 → 19:0117:12109 min17:12109 min12 Jul
Dubai18:38 → 21:0119:1283 min19:1184 min13 Jul
Delhi20:08 → 22:3119:2135 min19:2182 min13 Jul
Kolkata20:08 → 22:3118:240 min18:2485 min13 Jul
Singapore22:08 → 00:3118:460 min18:4695 min13 Jul
Sydney00:38 → 03:0117:020 min17:02112 min13 Jul
Suva02:38 → 05:0117:450 min17:45103 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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