Ruling · Śiva Śayanotsava · 2019

Tuesday 16 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 441 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 Monday 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 Tuesday 16 July

Taken. The only evening Pūrṇimā reaches.

19:42 sunsetpradoṣa ends 20:58
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 04:18 on Tue 16 Jul to 05:38 on Wed 17 Jul.

    2019-07-15T20:18:27Z → 2019-07-16T21:38:13Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:43–20:58 on the 15th, 19:42–20:58 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 26434 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2019: Tuesday 16 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2019 falls on Tuesday 16 July. Pūrṇimā runs from 04:18 on Tue 16 Jul to 05:38 on Wed 17 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2019/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 16 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 16 Jul
compat-drikpanchangComparison profileTue 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 Angeles13:18 → 14:3820:0579 min20:040 min15 Jul
Chicago15:18 → 16:3820:2473 min20:230 min15 Jul
Jersey City16:18 → 17:3820:2674 min20:250 min15 Jul
Port of Spain16:18 → 17:3818:3291 min18:320 min15 Jul
London21:18 → 22:3821:1156 min21:1063 min16 Jul
Durban22:18 → 23:3817:140 min17:14109 min16 Jul
Dubai00:18 → 01:3819:110 min19:1184 min16 Jul
Delhi01:48 → 03:0819:210 min19:2082 min16 Jul
Kolkata01:48 → 03:0818:240 min18:2485 min16 Jul
Singapore04:18 → 05:3819:160 min19:1695 min16 Jul
Sydney06:18 → 07:3817:040 min17:04111 min16 Jul
Suva08:18 → 09:3817:460 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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