Ruling · Śiva Śayanotsava · 1985

Tuesday 2 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 21 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 1 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:47 sunsetpradoṣa ends 21:00
19:2319:4720:1120:3520:5921:2321:47

0 of 73 minutes covered

Evening of Tuesday 2 July

Taken. The only evening Pūrṇimā reaches.

19:47 sunsetpradoṣa ends 21:00
Pūrṇimā ends 20:08:19
19:2319:4720:1120:3520:5921:2321:47

21 of 73 minutes covered, the first 21

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul.

    1985-07-01T14:29:29Z → 1985-07-02T12:08:19Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:47–21:00 on the 1st, 19:47–21:00 on the 2nd.

    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 73 minutes on the 1st and 21 of 73 on the 2nd.

    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 1284 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1985: Tuesday 2 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1985 falls on Tuesday 2 July. Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul and covers 21 of 73 minutes of pradoṣa that evening.

ahargana.org/baoding/festivals/1985/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 2 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 2 Jul
compat-drikpanchangComparison profileTue 2 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 1stCoveredSunset 2ndCoveredRuled
Los Angeles07:29 → 05:0820:0877 min20:080 min1 Jul
Chicago09:29 → 07:0820:2971 min20:290 min1 Jul
Jersey City10:29 → 08:0820:3172 min20:310 min1 Jul
Port of Spain10:29 → 08:0818:3290 min18:320 min1 Jul
London15:29 → 13:0821:2060 min21:200 min1 Jul
Durban16:29 → 14:0817:07110 min17:070 min1 Jul
Dubai18:29 → 16:0819:1283 min19:120 min1 Jul
Delhi19:59 → 17:3819:2344 min19:230 min1 Jul
Kolkata19:59 → 17:3818:250 min18:250 min1 Jul
Singapore22:29 → 20:0819:140 min19:1454 min2 Jul
Sydney00:29 → 22:0816:570 min16:57113 min2 Jul
Suva02:29 → 00:0817:410 min17:42104 min2 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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