Ruling · Śiva Śayanotsava · 2072

Friday 29 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 574 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 Thursday 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

Evening of Friday 29 July

Taken. The only evening Pūrṇimā reaches.

19:32 sunsetpradoṣa ends 20:50
19:0819:3219:5620:2020:4421:0821:32

78 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 06:25 on Fri 29 Jul to 08:18 on Sat 30 Jul.

    2072-07-28T22:25:00Z → 2072-07-30T00:17:34Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:33–20:51 on the 28th, 19:32–20:50 on the 29th.

    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 78 minutes on the 28th and 78 of 78 on the 29th.

    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 34461 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2072: Friday 29 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2072 falls on Friday 29 July. Pūrṇimā runs from 06:25 on Fri 29 Jul to 08:18 on Sat 30 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2072/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 29 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 29 Jul
compat-drikpanchangComparison profileFri 29 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 28thCoveredSunset 30thCoveredRuled
Los Angeles15:25 → 17:1819:5681 min19:550 min28 Jul
Chicago17:25 → 19:1820:1276 min20:100 min28 Jul
Jersey City18:25 → 20:1820:1577 min20:130 min28 Jul
Port of Spain18:25 → 20:1818:3191 min18:300 min29 Jul
London23:25 → 01:1820:530 min20:500 min29 Jul
Durban00:25 → 02:1817:220 min17:230 min29 Jul
Dubai02:25 → 04:1819:060 min19:040 min29 Jul
Delhi03:55 → 05:4819:140 min19:130 min29 Jul
Kolkata03:55 → 05:4818:190 min18:180 min29 Jul
Singapore06:25 → 08:1819:160 min19:160 min29 Jul
Sydney08:25 → 10:1817:130 min17:150 min29 Jul
Suva10:25 → 12:1817:510 min17:520 min29 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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