Ruling · Mahāśivarātri (Shivratri) · 2097

Tuesday 12 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 364 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 11 March

Caturdaśī is absent from niśītha. Not taken.

niśītha begins 00:04  00:52 niśītha ends
23:1623:4000:0400:2800:5201:1601:40

0 of 48 minutes covered

Night of Tuesday 12 March

Taken. The only night Caturdaśī reaches.

niśītha begins 00:04  00:52 niśītha ends
23:1623:4000:0400:2800:5201:1601:40

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 07:20 on Tue 12 Mar to 06:56 on Wed 13 Mar.

    2097-03-11T23:20:09Z → 2097-03-12T22:55:38Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:04–00:52 on the 11th, 00:04–00:52 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 21845 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 2097: Tuesday 12 March.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 2097 falls on Tuesday 12 March. Caturdaśī runs from 07:20 on Tue 12 Mar to 06:56 on Wed 13 Mar and covers all of niśītha that night.

ahargana.org/baoding/festivals/2097/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 12 Mar
compat-drikpanchangComparison profileTue 12 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 11thCoveredNiśītha 12thCoveredRuled
Los Angeles16:20 → 15:5600:3948 min00:380 min11 Mar
Chicago18:20 → 17:5600:3648 min00:360 min11 Mar
Jersey City19:20 → 18:5600:4248 min00:420 min11 Mar
Port of Spain19:20 → 18:5623:5248 min23:520 min11 Mar
London23:20 → 22:5623:4648 min23:460 min11 Mar
Durban01:20 → 00:5623:420 min23:4248 min12 Mar
Dubai03:20 → 02:5600:050 min00:0448 min12 Mar
Delhi04:50 → 04:2600:070 min00:0748 min12 Mar
Kolkata04:50 → 04:2623:220 min23:2248 min12 Mar
Singapore07:20 → 06:5600:510 min00:5048 min12 Mar
Sydney10:20 → 09:5600:410 min00:4148 min12 Mar
Suva11:20 → 10:5623:520 min23:5248 min12 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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