Ruling · Śiva Śayanotsava · 1924

Wednesday 16 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 6 min 43 s.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Tuesday 15 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:43 sunsetpradoṣa ends 20:58
19:1919:4320:0720:3120:5521:1921:43

0 of 75 minutes covered

Evening of Wednesday 16 July

Taken. The only evening Pūrṇimā reaches.

19:42 sunsetpradoṣa ends 20:57
Pūrṇimā ends 19:48:51
19:1819:4220:0620:3020:5421:1821:42

7 of 75 minutes covered, the first 7

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 23:08 on Tue 15 Jul to 19:49 on Wed 16 Jul.

    1924-07-15T15:07:56Z → 1924-07-16T11:48:51Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:43–20:58 on the 15th, 19:42–20:57 on the 16th.

    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 15th and 7 of 75 on the 16th.

    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 403 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1924: Wednesday 16 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1924 falls on Wednesday 16 July. Pūrṇimā runs from 23:08 on Tue 15 Jul to 19:49 on Wed 16 Jul and covers 7 of 75 minutes of pradoṣa that evening.

ahargana.org/baoding/festivals/1924/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 16 Jul
Ahargaṇa, classicalDisc centre, no refractionWed 16 Jul
compat-drikpanchangComparison profileWed 16 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 15thCoveredSunset 16thCoveredRuled
Los Angeles07:08 → 03:4919:0578 min19:040 min15 Jul
Chicago10:08 → 06:4920:2473 min20:230 min15 Jul
Jersey City11:08 → 07:4920:2674 min20:250 min15 Jul
Port of Spain11:08 → 07:4918:3291 min18:320 min15 Jul
London16:08 → 12:4921:1163 min21:100 min15 Jul
Durban17:08 → 13:4917:13109 min17:140 min15 Jul
Dubai19:08 → 15:4919:1184 min19:110 min15 Jul
Delhi20:38 → 17:1919:214 min19:200 min15 Jul
Kolkata20:38 → 17:1918:240 min18:240 min15 Jul
Singapore22:08 → 18:4918:160 min18:1633 min16 Jul
Sydney01:08 → 21:4917:040 min17:04111 min16 Jul
Suva03:08 → 23:4917:460 min17:46103 min16 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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