Ruling · Śiva Śayanotsava · 1939

Saturday 1 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 120 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 Friday 30 June

Pūrṇimā is absent from pradoṣa. Not taken.

19:47 sunsetpradoṣa ends 21:00
19:2319:4720:1120:3520:5921:2321:47

0 of 73 minutes covered

Evening of Saturday 1 July

Taken. The only evening Pūrṇimā reaches.

19:47 sunsetpradoṣa ends 21:00
19:2319:4720:1120:3520:5921:2321:47

73 of 73 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 23:00 on Fri 30 Jun to 00:16 on Sun 2 Jul.

    1939-06-30T14:59:47Z → 1939-07-01T16:15:58Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:47–21:00 on the 30th, 19:47–21:00 on the 1st.

    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 73 minutes on the 30th and 73 of 73 on the 1st.

    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 7171 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1939: Saturday 1 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1939 falls on Saturday 1 July. Pūrṇimā runs from 23:00 on Fri 30 Jun to 00:16 on Sun 2 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1939/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 1 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 1 Jul
compat-drikpanchangComparison profileSat 1 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 30thCoveredSunset 1stCoveredRuled
Los Angeles07:00 → 08:1619:0877 min19:080 min30 Jun
Chicago10:00 → 11:1620:2971 min20:290 min30 Jun
Jersey City11:00 → 12:1620:3172 min20:310 min30 Jun
Port of Spain11:00 → 12:1618:3190 min18:320 min30 Jun
London16:00 → 17:1621:2160 min21:210 min30 Jun
Durban17:00 → 18:1617:06110 min17:0769 min30 Jun
Dubai19:00 → 20:1619:1283 min19:1264 min30 Jun
Delhi20:30 → 21:4619:2313 min19:2381 min1 Jul
Kolkata20:30 → 21:4618:250 min18:2584 min1 Jul
Singapore22:20 → 23:3618:340 min18:3495 min1 Jul
Sydney01:00 → 02:1616:560 min16:56113 min1 Jul
Suva03:00 → 04:1617:410 min17:41104 min1 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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