Ruling · Śiva Śayanotsava · 2085

Friday 6 July

Boundaryin Baoding, under the Rashtriya Panchang method. Pūrṇimā reaches pradoṣa on neither day and the rule does not say what then. Say “contested”.

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 Friday 6 July

Taken. Pūrṇimā reaches neither evening; this is the day it falls on.

19:46 sunsetpradoṣa ends 21:00
Pūrṇimā begins 21:22:43
19:2219:4620:1020:3420:5821:2221:46

0 of 74 minutes covered

Evening of Saturday 7 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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 21:23 on Fri 6 Jul to 18:16 on Sat 7 Jul.

    2085-07-06T13:22:44Z → 2085-07-07T10:16:09Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:46–21:00 on the 6th, 19:46–21:00 on the 7th.

    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 6th and 0 of 74 on the 7th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither evening qualifies. The day the tithi falls on is taken.

    priority: unstated → tithi-day · margin 1346 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 2085: Friday 6 July.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Śiva Śayanotsava 2085 falls on Friday 6 July. Pūrṇimā runs from 21:23 on Fri 6 Jul to 18:16 on Sat 7 Jul, and reaches pradoṣa on neither day.

ahargana.org/baoding/festivals/2085/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 6 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 6 Jul
compat-drikpanchangComparison profileFri 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 6thCoveredSunset 7thCoveredRuled
Los Angeles06:23 → 03:1620:0878 min20:070 min6 Jul
Chicago08:23 → 05:1620:2871 min20:280 min6 Jul
Jersey City09:23 → 06:1620:3072 min20:300 min6 Jul
Port of Spain09:23 → 06:1618:3390 min18:330 min6 Jul
London14:23 → 11:1621:1861 min21:170 min6 Jul
Durban15:23 → 12:1617:10110 min17:110 min6 Jul
Dubai17:23 → 14:1619:1383 min19:130 min6 Jul
Delhi18:53 → 15:4619:2381 min19:230 min6 Jul
Kolkata18:53 → 15:4618:2557 min18:250 min6 Jul
Singapore21:23 → 18:1619:150 min19:160 min6 Jul
Sydney23:23 → 20:1617:000 min17:00112 min7 Jul
Suva01:23 → 22:1617:440 min17:44103 min7 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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