Ruling · Mahāśivarātri (Shivratri) · 1998

Wednesday 25 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 225 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 Tuesday 24 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

Night of Wednesday 25 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

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

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 07:32 on Wed 25 Feb to 04:40 on Thu 26 Feb.

    1998-02-24T23:32:13Z → 1998-02-25T20:40:04Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 24th, 00:07–00:55 on the 25th.

    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 24th and 48 of 48 on the 25th.

    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 13512 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 1998: Wednesday 25 February.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 1998 falls on Wednesday 25 February. Caturdaśī runs from 07:32 on Wed 25 Feb to 04:40 on Thu 26 Feb and covers all of niśītha that night.

ahargana.org/baoding/festivals/1998/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 25 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 25 Feb
compat-drikpanchangComparison profileWed 25 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 24thCoveredNiśītha 25thCoveredRuled
Los Angeles15:32 → 12:4023:4248 min23:420 min24 Feb
Chicago17:32 → 14:4023:3948 min23:390 min24 Feb
Jersey City18:32 → 15:4023:4548 min23:450 min24 Feb
Port of Spain19:32 → 16:4023:5548 min23:550 min24 Feb
London23:32 → 20:4023:4948 min23:490 min24 Feb
Durban01:32 → 22:4023:450 min23:450 min24 Feb
Dubai03:32 → 00:4000:080 min00:0832 min25 Feb
Delhi05:02 → 02:1000:100 min00:1048 min25 Feb
Kolkata05:02 → 02:1023:260 min23:2548 min25 Feb
Singapore07:32 → 04:4000:540 min00:5448 min25 Feb
Sydney10:32 → 07:4000:450 min00:4448 min25 Feb
Suva11:32 → 08:4023:560 min23:5548 min25 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

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