Ruling · Śiva Śayanotsava · 2030

Sunday 14 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 385 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 Sunday 14 July

Taken. The only evening Pūrṇimā reaches.

19:43 sunsetpradoṣa ends 20:58
19:1919:4320:0720:3120:5521:1921:43

75 of 75 minutes covered

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

Pūrṇimā presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 13:18 on Sun 14 Jul to 10:12 on Mon 15 Jul.

    2030-07-14T05:17:55Z → 2030-07-15T02:12:00Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:43–20:58 on the 14th, 19:43–20:58 on the 15th.

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

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 75 of 75 minutes on the 14th and 0 of 75 on the 15th.

    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 23116 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2030: Sunday 14 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2030 falls on Sunday 14 July. Pūrṇimā runs from 13:18 on Sun 14 Jul to 10:12 on Mon 15 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2030/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 14 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 14 Jul
compat-drikpanchangComparison profileSun 14 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 14thCoveredSunset 15thCoveredRuled
Los Angeles22:18 → 19:1220:050 min20:050 min13 Jul
Chicago00:18 → 21:1220:2448 min20:240 min14 Jul
Jersey City01:18 → 22:1220:2674 min20:260 min14 Jul
Port of Spain01:18 → 22:1218:3391 min18:330 min14 Jul
London06:18 → 03:1221:1263 min21:110 min14 Jul
Durban07:18 → 04:1217:13109 min17:140 min14 Jul
Dubai09:18 → 06:1219:1184 min19:110 min14 Jul
Delhi10:48 → 07:4219:2182 min19:210 min14 Jul
Kolkata10:48 → 07:4218:2485 min18:240 min14 Jul
Singapore13:18 → 10:1219:1695 min19:160 min14 Jul
Sydney15:18 → 12:1217:03111 min17:040 min14 Jul
Suva17:18 → 14:1217:46103 min17:460 min14 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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