Ruling · Śiva Śayanotsava · 2043

Tuesday 21 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 494 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 Tuesday 21 July

Taken. The only evening Pūrṇimā reaches.

19:39 sunsetpradoṣa ends 20:55
19:1519:3920:0320:2720:5121:1521:39

76 of 76 minutes covered

Evening of Wednesday 22 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:38 sunsetpradoṣa ends 20:55
19:1419:3820:0220:2620:5021:1421:38

0 of 76 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 10:45 on Tue 21 Jul to 11:24 on Wed 22 Jul.

    2043-07-21T02:45:20Z → 2043-07-22T03:24:17Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:39–20:55 on the 21st, 19:38–20:55 on the 22nd.

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

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 76 of 76 minutes on the 21st and 0 of 76 on the 22nd.

    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 29644 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2043: Tuesday 21 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2043 falls on Tuesday 21 July. Pūrṇimā runs from 10:45 on Tue 21 Jul to 11:24 on Wed 22 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2043/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 21 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 21 Jul
compat-drikpanchangComparison profileTue 21 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 21stCoveredSunset 22ndCoveredRuled
Los Angeles19:45 → 20:2420:0223 min20:010 min20 Jul
Chicago21:45 → 22:2420:1974 min20:190 min21 Jul
Jersey City22:45 → 23:2420:2275 min20:210 min21 Jul
Port of Spain22:45 → 23:2418:3291 min18:320 min21 Jul
London03:45 → 04:2421:0465 min21:030 min21 Jul
Durban04:45 → 05:2417:17108 min17:180 min21 Jul
Dubai06:45 → 07:2419:0984 min19:090 min21 Jul
Delhi08:15 → 08:5419:1882 min19:180 min21 Jul
Kolkata08:15 → 08:5418:2286 min18:220 min21 Jul
Singapore10:45 → 11:2419:1695 min19:160 min21 Jul
Sydney12:45 → 13:2417:08110 min17:080 min21 Jul
Suva14:45 → 15:2417:48103 min17:490 min21 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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