Ruling · Śivarātri · 1908

Thursday 28 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 633 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two nights

One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.

Night of Wednesday 27 May

Caturdaśī is absent from niśītha. Not taken.

niśītha begins 23:51  00:39 niśītha ends
23:0323:2723:5100:1500:3901:0301:27

0 of 48 minutes covered

Night of Thursday 28 May

Taken. The only night Caturdaśī reaches.

niśītha begins 23:51  00:39 niśītha ends
23:0323:2723:5100:1500:3901:0301:27

48 of 48 minutes covered

Caturdaśī presentNiśītha, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 11:39 on Thu 28 May to 11:12 on Fri 29 May.

    1908-05-28T03:39:17Z → 1908-05-29T03:12:02Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:51–00:39 on the 27th, 23:51–00:39 on the 28th.

    nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108

  4. 04

    Tie-break

    Only one night qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 37978 s

  5. 05

    Ruling

    Śivarātri, Baoding, 1908: Thursday 28 May.

    confidence: determinate

Say it like this

In Baoding, Śivarātri 1908 falls on Thursday 28 May. Caturdaśī runs from 11:39 on Thu 28 May to 11:12 on Fri 29 May and covers all of niśītha that night.

ahargana.org/baoding/festivals/1908/shivaratri?on=1908-05-28 · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 28 May
Ahargaṇa, classicalDisc centre, no refractionThu 28 May
compat-drikpanchangComparison profileThu 28 May
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/shivaratri · ruleset 2026.3-draft

Month
Every lunation
Pakṣa · aṅga
Kṛṣṇa · Caturdaśī
Kāla
Niśītha
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 108

“The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108. The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturdaśīNiśītha 28thCoveredNiśītha 29thCoveredRuled
Los Angeles19:39 → 19:1223:260 min23:260 min27 May
Chicago21:39 → 21:1223:240 min23:240 min27 May
Jersey City22:39 → 22:1223:290 min23:290 min27 May
Port of Spain23:39 → 23:1223:390 min23:390 min27 May
London03:39 → 03:1223:3348 min23:340 min28 May
Durban05:39 → 05:1223:2948 min23:290 min28 May
Dubai07:20 → 06:5323:3348 min23:330 min28 May
Delhi09:09 → 08:4223:5448 min23:540 min28 May
Kolkata09:09 → 08:4223:1048 min23:100 min28 May
Singapore10:39 → 10:1223:3848 min23:380 min28 May
Sydney13:39 → 13:1223:2848 min23:280 min28 May
Suva15:34 → 15:0723:3448 min23:350 min28 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shivaratri@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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