Ruling · Mahāśivarātri (Shivratri) · 1984

Wednesday 29 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 6 min 05 s.

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 29 February

Taken. The only night Caturdaśī reaches.

niśītha begins 00:06  00:54 niśītha ends
23:1823:4200:0600:3000:5401:1801:42

48 of 48 minutes covered

Night of Thursday 1 March

Caturdaśī is absent from niśītha. Not taken.

niśītha begins 00:06  00:54 niśītha ends
Caturdaśī ends 00:00:02
23:1823:4200:0600:3000:5401:1801:42

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 21:31 on Wed 29 Feb to 00:00 on Fri 2 Mar.

    1984-02-29T13:31:11Z → 1984-03-01T16:00:02Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:06–00:54 on the 29th, 00:06–00:54 on the 1st.

    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 29th and 0 of 48 on the 1st.

    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 365 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 1984: Wednesday 29 February.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 1984 falls on Wednesday 29 February. Caturdaśī runs from 21:31 on Wed 29 Feb to 00:00 on Fri 2 Mar and covers all of niśītha that night.

ahargana.org/baoding/festivals/1984/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 29 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 29 Feb
compat-drikpanchangComparison profileWed 29 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 29thCoveredNiśītha 1stCoveredRuled
Los Angeles05:31 → 08:0023:4148 min23:410 min29 Feb
Chicago07:31 → 10:0023:3948 min23:380 min29 Feb
Jersey City08:31 → 11:0023:4448 min23:440 min29 Feb
Port of Spain09:31 → 12:0023:5448 min23:540 min29 Feb
London13:31 → 16:0023:4848 min23:480 min29 Feb
Durban15:31 → 18:0023:4548 min23:440 min29 Feb
Dubai17:31 → 20:0000:0748 min00:070 min29 Feb
Delhi19:01 → 21:3000:0948 min00:090 min29 Feb
Kolkata19:01 → 21:3023:2548 min23:250 min29 Feb
Singapore21:31 → 00:0000:5348 min00:530 min29 Feb
Sydney00:31 → 03:0000:4448 min00:4448 min29 Feb
Suva01:31 → 04:0023:550 min23:5548 min1 Mar
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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