Ruling · Śiva Śayanotsava · 2028

Thursday 6 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 274 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 Wednesday 5 July

Pūrṇimā is absent from pradoṣa. Not taken.

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

0 of 74 minutes covered

Evening of Thursday 6 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 01:34 on Thu 6 Jul to 02:11 on Fri 7 Jul.

    2028-07-05T17:34:24Z → 2028-07-06T18:10:49Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:46–21:00 on the 5th, 19:46–21:00 on the 6th.

    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 5th and 74 of 74 on the 6th.

    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 16458 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2028: Thursday 6 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 2028 falls on Thursday 6 July. Pūrṇimā runs from 01:34 on Thu 6 Jul to 02:11 on Fri 7 Jul and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2028/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 6 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 6 Jul
compat-drikpanchangComparison profileThu 6 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 5thCoveredSunset 6thCoveredRuled
Los Angeles10:34 → 11:1120:0877 min20:070 min5 Jul
Chicago12:34 → 13:1120:2871 min20:280 min5 Jul
Jersey City13:34 → 14:1120:3072 min20:300 min5 Jul
Port of Spain13:34 → 14:1118:3290 min18:320 min5 Jul
London18:34 → 19:1121:1861 min21:180 min5 Jul
Durban19:34 → 20:1117:090 min17:10110 min6 Jul
Dubai21:34 → 22:1119:120 min19:1283 min6 Jul
Delhi23:04 → 23:4119:230 min19:2281 min6 Jul
Kolkata23:04 → 23:4118:250 min18:2584 min6 Jul
Singapore01:34 → 02:1119:150 min19:1595 min6 Jul
Sydney03:34 → 04:1116:590 min16:59112 min6 Jul
Suva05:34 → 06:1117:430 min17:43103 min6 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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