Ruling · Śiva Śayanotsava · 2003

Sunday 13 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 383 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 Saturday 12 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:44 sunsetpradoṣa ends 20:59
19:2019:4420:0820:3220:5621:2021:44

0 of 75 minutes covered

Evening of Sunday 13 July

Taken. The only evening Pūrṇimā reaches.

19:44 sunsetpradoṣa ends 20:59
19:2019:4420:0820:3220:5621:2021:44

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 05:51 on Sun 13 Jul to 03:21 on Mon 14 Jul.

    2003-07-12T21:50:37Z → 2003-07-13T19:21:24Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:44–20:59 on the 12th, 19:44–20:59 on the 13th.

    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 12th and 75 of 75 on the 13th.

    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 22970 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2003: Sunday 13 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2003 falls on Sunday 13 July. Pūrṇimā runs from 05:51 on Sun 13 Jul to 03:21 on Mon 14 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2003/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 13 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 13 Jul
compat-drikpanchangComparison profileSun 13 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 12thCoveredSunset 13thCoveredRuled
Los Angeles14:51 → 12:2120:0678 min20:060 min12 Jul
Chicago16:51 → 14:2120:2672 min20:250 min12 Jul
Jersey City17:51 → 15:2120:2873 min20:270 min12 Jul
Port of Spain17:51 → 15:2118:3390 min18:330 min12 Jul
London22:51 → 20:2121:140 min21:130 min12 Jul
Durban23:51 → 21:2117:120 min17:12109 min13 Jul
Dubai01:51 → 23:2119:120 min19:1183 min13 Jul
Delhi03:21 → 00:5119:220 min19:2181 min13 Jul
Kolkata03:21 → 00:5118:240 min18:2485 min13 Jul
Singapore05:51 → 03:2119:160 min19:1695 min13 Jul
Sydney07:51 → 05:2117:020 min17:03112 min13 Jul
Suva09:51 → 07:2117:450 min17:45103 min13 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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