Ruling · Mahāśivarātri · 1933

Wednesday 22 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 68 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 22 February

Taken. The only night Caturdaśī reaches.

niśītha begins 00:07  00:55 niśītha ends
23:1923:4300:0700:3100:5501:1901:43

48 of 48 minutes covered

Night of Thursday 23 February

Caturdaśī is absent from niśītha. Not taken.

niśītha begins 00:07  00:55 niśītha ends
23:1923:4300:0700:3100:5501:1901:43

0 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 23:00 on Wed 22 Feb to 21:39 on Thu 23 Feb.

    1933-02-22T14:59:36Z → 1933-02-23T13:39:01Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 22nd, 00:07–00:55 on the 23rd.

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

  3. 03

    Rule

    Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

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

    priority: disputed → only-day · margin 4071 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 1933: Wednesday 22 February.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri 1933 falls on Wednesday 22 February. Caturdaśī runs from 23:00 on Wed 22 Feb to 21:39 on Thu 23 Feb and covers all of niśītha that night.

ahargana.org/baoding/festivals/1933/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 22 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 22 Feb
compat-drikpanchangComparison profileWed 22 Feb
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/maha-shivaratri · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturdaśī
Kāla
Niśītha
Priority
Disputed
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105. 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 22ndCoveredNiśītha 23rdCoveredRuled
Los Angeles07:00 → 05:3923:4248 min23:420 min22 Feb
Chicago09:00 → 07:3923:4048 min23:400 min22 Feb
Jersey City10:00 → 08:3923:4648 min23:450 min22 Feb
Port of Spain11:00 → 09:3923:5648 min23:550 min22 Feb
London15:00 → 13:3923:5048 min23:490 min22 Feb
Durban17:00 → 15:3923:4648 min23:460 min22 Feb
Dubai19:00 → 17:3900:0848 min00:080 min22 Feb
Delhi20:30 → 19:0900:1048 min00:100 min22 Feb
Kolkata20:30 → 19:0923:2648 min23:260 min22 Feb
Singapore22:20 → 20:5900:1448 min00:140 min22 Feb
Sydney01:00 → 23:3923:450 min23:450 min22 Feb
Suva03:00 → 01:3923:560 min23:5648 min23 Feb
Profile · tradition
pac-rp@2026.1 · smarta
Rule
maha-shivaratri@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa