Ruling · Mahāśivarātri (Shivratri) · 1997

Friday 7 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 452 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 Friday 7 March

Taken. The only night Caturdaśī reaches.

niśītha begins 00:05  00:53 niśītha ends
23:1723:4100:0500:2900:5301:1701:41

48 of 48 minutes covered

Night of Saturday 8 March

Caturdaśī is absent from niśītha. Not taken.

niśītha begins 00:05  00:53 niśītha ends
23:1723:4100:0500:2900:5301:1701:41

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 16:33 on Fri 7 Mar to 12:54 on Sat 8 Mar.

    1997-03-07T08:33:18Z → 1997-03-08T04:54:28Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:05–00:53 on the 7th, 00:05–00:53 on the 8th.

    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 7th and 0 of 48 on the 8th.

    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 27090 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 1997: Friday 7 March.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 1997 falls on Friday 7 March. Caturdaśī runs from 16:33 on Fri 7 Mar to 12:54 on Sat 8 Mar and covers all of niśītha that night.

ahargana.org/baoding/festivals/1997/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 7 Mar
Ahargaṇa, classicalDisc centre, no refractionFri 7 Mar
compat-drikpanchangComparison profileFri 7 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 7thCoveredNiśītha 8thCoveredRuled
Los Angeles00:33 → 20:5423:400 min23:390 min6 Mar
Chicago02:33 → 22:5423:370 min23:370 min6 Mar
Jersey City03:33 → 23:5423:4312 min23:430 min7 Mar
Port of Spain04:33 → 00:5423:5348 min23:530 min7 Mar
London08:33 → 04:5423:4748 min23:470 min7 Mar
Durban10:33 → 06:5423:4348 min23:430 min7 Mar
Dubai12:33 → 08:5400:0648 min00:050 min7 Mar
Delhi14:03 → 10:2400:0848 min00:080 min7 Mar
Kolkata14:03 → 10:2423:2348 min23:230 min7 Mar
Singapore16:33 → 12:5400:5248 min00:510 min7 Mar
Sydney19:33 → 15:5400:4248 min00:420 min7 Mar
Suva20:33 → 16:5423:5348 min23:530 min7 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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