Ruling · Śiva Śayanotsava · 2001

Thursday 5 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 35 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 Wednesday 4 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:47 sunsetpradoṣa ends 21:00
Pūrṇimā begins 21:35:38
19:2319:4720:1120:3520:5921:2321:47

0 of 74 minutes covered

Evening of Thursday 5 July

Taken. The only evening Pūrṇimā reaches.

19:46 sunsetpradoṣa ends 21:00
19:2219:4620:1020:3420:5821:2221:46

74 of 74 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 21:36 on Wed 4 Jul to 23:04 on Thu 5 Jul.

    2001-07-04T13:35:38Z → 2001-07-05T15:03:46Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:47–21:00 on the 4th, 19:46–21:00 on the 5th.

    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 74 minutes on the 4th and 74 of 74 on the 5th.

    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 2125 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2001: Thursday 5 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2001 falls on Thursday 5 July. Pūrṇimā runs from 21:36 on Wed 4 Jul to 23:04 on Thu 5 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2001/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 5 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 5 Jul
compat-drikpanchangComparison profileThu 5 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 4thCoveredSunset 5thCoveredRuled
Los Angeles06:36 → 08:0420:0877 min20:080 min4 Jul
Chicago08:36 → 10:0420:2871 min20:280 min4 Jul
Jersey City09:36 → 11:0420:3072 min20:300 min4 Jul
Port of Spain09:36 → 11:0418:3290 min18:320 min4 Jul
London14:36 → 16:0421:1960 min21:190 min4 Jul
Durban15:36 → 17:0417:08110 min17:090 min4 Jul
Dubai17:36 → 19:0419:1283 min19:120 min4 Jul
Delhi19:06 → 20:3419:2381 min19:2371 min4 Jul
Kolkata19:06 → 20:3418:2544 min18:2584 min5 Jul
Singapore21:36 → 23:0419:150 min19:1595 min5 Jul
Sydney23:36 → 01:0416:580 min16:58112 min5 Jul
Suva01:36 → 03:0417:420 min17:43103 min5 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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