Ruling · Śivarātri · 1908

Sunday 26 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 608 minutes.

Decide it for

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 Saturday 25 July

Caturdaśī is absent from niśītha. Not taken.

niśītha begins 00:01  00:49 niśītha ends
23:1323:3700:0100:2500:4901:1301:37

0 of 48 minutes covered

Night of Sunday 26 July

Taken. The only night Caturdaśī reaches.

niśītha begins 00:01  00:49 niśītha ends
23:1323:3700:0100:2500:4901:1301:37

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 10:57 on Sun 26 Jul to 13:00 on Mon 27 Jul.

    1908-07-26T02:56:50Z → 1908-07-27T04:59:33Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:01–00:49 on the 25th, 00:01–00:49 on the 26th.

    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 25th and 48 of 48 on the 26th.

    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 36494 s

  5. 05

    Ruling

    Śivarātri, Baoding, 1908: Sunday 26 July.

    confidence: determinate

Say it like this

In Baoding, Śivarātri 1908 falls on Sunday 26 July. Caturdaśī runs from 10:57 on Sun 26 Jul to 13:00 on Mon 27 Jul and covers all of niśītha that night.

ahargana.org/baoding/festivals/1908/shivaratri?on=1908-07-26 · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 26 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 26 Jul
compat-drikpanchangComparison profileSun 26 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/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 26thCoveredNiśītha 27thCoveredRuled
Los Angeles18:57 → 21:0023:350 min23:350 min25 Jul
Chicago20:57 → 23:0023:330 min23:330 min25 Jul
Jersey City21:57 → 00:0023:3921 min23:390 min25 Jul
Port of Spain22:57 → 01:0023:4848 min23:480 min25 Jul
London02:57 → 05:0023:4348 min23:430 min26 Jul
Durban04:57 → 07:0023:3848 min23:380 min26 Jul
Dubai06:38 → 08:4123:4248 min23:420 min26 Jul
Delhi08:27 → 10:3000:0348 min00:030 min26 Jul
Kolkata08:27 → 10:3023:1948 min23:190 min26 Jul
Singapore09:57 → 12:0023:4748 min23:470 min26 Jul
Sydney12:57 → 15:0023:3748 min23:370 min26 Jul
Suva14:52 → 16:5523:4448 min23:440 min26 Jul
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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