Ruling · Mahāśivarātri (Shivratri) · 2022

Tuesday 1 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 157 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 Monday 28 February

Caturdaśī is absent from niśītha. Not taken.

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

0 of 48 minutes covered

Night of Tuesday 1 March

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

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

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 05:46 on Tue 1 Mar to 03:31 on Wed 2 Mar.

    2022-02-28T21:46:27Z → 2022-03-01T19:30:49Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:06–00:54 on the 28th, 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 0 of 48 minutes on the 28th and 48 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 9403 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 2022: Tuesday 1 March.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 2022 falls on Tuesday 1 March. Caturdaśī runs from 05:46 on Tue 1 Mar to 03:31 on Wed 2 Mar and covers all of niśītha that night.

ahargana.org/baoding/festivals/2022/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 1 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 1 Mar
compat-drikpanchangComparison profileTue 1 Mar
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 28thCoveredNiśītha 1stCoveredRuled
Los Angeles13:46 → 11:3123:4148 min23:410 min28 Feb
Chicago15:46 → 13:3123:3948 min23:380 min28 Feb
Jersey City16:46 → 14:3123:4448 min23:440 min28 Feb
Port of Spain17:46 → 15:3123:5448 min23:540 min28 Feb
London21:46 → 19:3123:4848 min23:480 min28 Feb
Durban23:46 → 21:3123:4546 min23:440 min28 Feb
Dubai01:46 → 23:3100:070 min00:070 min28 Feb
Delhi03:16 → 01:0100:090 min00:0948 min1 Mar
Kolkata03:16 → 01:0123:250 min23:2548 min1 Mar
Singapore05:46 → 03:3100:530 min00:5348 min1 Mar
Sydney08:46 → 06:3100:440 min00:4448 min1 Mar
Suva09:46 → 07:3123:550 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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