Ruling · Śiva Śayanotsava · 2064

Sunday 27 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 232 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 27 July

Taken. The only evening Pūrṇimā reaches.

19:34 sunsetpradoṣa ends 20:51
19:1019:3419:5820:2220:4621:1021:34

78 of 78 minutes covered

Evening of Monday 28 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:33 sunsetpradoṣa ends 20:51
19:0919:3319:5720:2120:4521:0921:33

0 of 78 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 15:24 on Sun 27 Jul to 15:41 on Mon 28 Jul.

    2064-07-27T07:24:29Z → 2064-07-28T07:41:02Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:34–20:51 on the 27th, 19:33–20:51 on the 28th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 78 of 78 minutes on the 27th and 0 of 78 on the 28th.

    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 13898 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2064: Sunday 27 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2064 falls on Sunday 27 July. Pūrṇimā runs from 15:24 on Sun 27 Jul to 15:41 on Mon 28 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2064/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 27 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 27 Jul
compat-drikpanchangComparison profileSun 27 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 27thCoveredSunset 28thCoveredRuled
Los Angeles00:24 → 00:4119:5781 min19:560 min27 Jul
Chicago02:24 → 02:4120:1376 min20:120 min27 Jul
Jersey City03:24 → 03:4120:1677 min20:150 min27 Jul
Port of Spain03:24 → 03:4118:3191 min18:310 min27 Jul
London08:24 → 08:4120:5567 min20:530 min27 Jul
Durban09:24 → 09:4117:21107 min17:220 min27 Jul
Dubai11:24 → 11:4119:0685 min19:060 min27 Jul
Delhi12:54 → 13:1119:1583 min19:140 min27 Jul
Kolkata12:54 → 13:1118:2086 min18:190 min27 Jul
Singapore15:24 → 15:4119:1695 min19:160 min27 Jul
Sydney17:24 → 17:4117:1397 min17:1328 min27 Jul
Suva19:24 → 19:4117:518 min17:51102 min28 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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