Ruling · Śiva Śayanotsava · 2050

Monday 4 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 351 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 Sunday 3 July

Pūrṇimā is absent from pradoṣa. Not taken.

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

0 of 74 minutes covered

Evening of Monday 4 July

Taken. The only evening Pūrṇimā reaches.

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

74 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 05:22 on Mon 4 Jul to 02:51 on Tue 5 Jul.

    2050-07-03T21:21:39Z → 2050-07-04T18:51:02Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:47–21:00 on the 3rd, 19:47–21:00 on the 4th.

    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 74 minutes on the 3rd and 74 of 74 on the 4th.

    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 21041 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2050: Monday 4 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2050 falls on Monday 4 July. Pūrṇimā runs from 05:22 on Mon 4 Jul to 02:51 on Tue 5 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2050/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 4 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 4 Jul
compat-drikpanchangComparison profileMon 4 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 3rdCoveredSunset 4thCoveredRuled
Los Angeles14:22 → 11:5120:0877 min20:080 min3 Jul
Chicago16:22 → 13:5120:2971 min20:290 min3 Jul
Jersey City17:22 → 14:5120:3172 min20:310 min3 Jul
Port of Spain17:22 → 14:5118:3290 min18:320 min3 Jul
London22:22 → 19:5121:200 min21:190 min3 Jul
Durban23:22 → 20:5117:080 min17:09110 min4 Jul
Dubai01:22 → 22:5119:130 min19:1383 min4 Jul
Delhi02:52 → 00:2119:230 min19:2381 min4 Jul
Kolkata02:52 → 00:2118:250 min18:2584 min4 Jul
Singapore05:22 → 02:5119:150 min19:1595 min4 Jul
Sydney07:22 → 04:5116:580 min16:58112 min4 Jul
Suva09:22 → 06:5117:420 min17:43104 min4 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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