Ruling · Mahāśivarātri · 2058

Thursday 21 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 555 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 Wednesday 20 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 Thursday 21 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 13:30 on Thu 21 Feb to 10:11 on Fri 22 Feb.

    2058-02-21T05:30:09Z → 2058-02-22T02:10:41Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 20th, 00:07–00:55 on the 21st.

    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 20th and 48 of 48 on the 21st.

    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 33319 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 2058: Thursday 21 February.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri 2058 falls on Thursday 21 February. Caturdaśī runs from 13:30 on Thu 21 Feb to 10:11 on Fri 22 Feb and covers all of niśītha that night.

ahargana.org/baoding/festivals/2058/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 21 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 21 Feb
compat-drikpanchangComparison profileThu 21 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 21stCoveredNiśītha 22ndCoveredRuled
Los Angeles21:30 → 18:1123:420 min23:420 min20 Feb
Chicago23:30 → 20:1123:400 min23:400 min20 Feb
Jersey City00:30 → 21:1123:450 min23:450 min20 Feb
Port of Spain01:30 → 22:1123:550 min23:550 min20 Feb
London05:30 → 02:1123:4948 min23:490 min21 Feb
Durban07:30 → 04:1123:4648 min23:450 min21 Feb
Dubai09:30 → 06:1100:0848 min00:080 min21 Feb
Delhi11:00 → 07:4100:1048 min00:100 min21 Feb
Kolkata11:00 → 07:4123:2648 min23:260 min21 Feb
Singapore13:30 → 10:1100:5448 min00:540 min21 Feb
Sydney16:30 → 13:1100:4548 min00:450 min21 Feb
Suva17:30 → 14:1123:5648 min23:560 min21 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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