Ruling · Śiva Śayanotsava · 1905

Sunday 16 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 154 minutes.

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 Saturday 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 Sunday 16 July

Taken. The only evening Pūrṇimā reaches.

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

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 00:32 on Sun 16 Jul to 23:32 on Sun 16 Jul.

    1905-07-15T16:32:18Z → 1905-07-16T15:31:32Z

  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 75 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 9245 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1905: Sunday 16 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1905 falls on Sunday 16 July. Pūrṇimā runs from 00:32 on Sun 16 Jul to 23:32 on Sun 16 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1905/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 16 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 16 Jul
compat-drikpanchangComparison profileSun 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 Angeles08:32 → 07:3219:0578 min19:040 min15 Jul
Chicago10:32 → 09:3219:2473 min19:230 min15 Jul
Jersey City11:32 → 10:3219:2674 min19:260 min15 Jul
Port of Spain12:32 → 11:3218:3291 min18:320 min15 Jul
London16:32 → 15:3220:1263 min20:110 min15 Jul
Durban18:32 → 17:3217:1330 min17:1418 min15 Jul
Dubai20:13 → 19:1318:522 min18:5221 min16 Jul
Delhi21:53 → 20:5319:120 min19:1182 min16 Jul
Kolkata21:53 → 20:5318:150 min18:1585 min16 Jul
Singapore23:32 → 22:3218:160 min18:1695 min16 Jul
Sydney02:32 → 01:3217:030 min17:04111 min16 Jul
Suva04:27 → 03:2717:410 min17:41103 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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