Ruling · Mahāśivarātri (Shivratri) · 1993

Friday 19 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 326 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 19 February

Taken. The only night Caturdaśī reaches.

niśītha begins 00:08  00:56 niśītha ends
23:2023:4400:0800:3200:5601:2001:44

48 of 48 minutes covered

Night of Saturday 20 February

Caturdaśī is absent from niśītha. Not taken.

niśītha begins 00:08  00:56 niśītha ends
23:2023:4400:0800:3200:5601:2001:44

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 16:27 on Fri 19 Feb to 18:41 on Sat 20 Feb.

    1993-02-19T08:26:38Z → 1993-02-20T10:41:09Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:08–00:56 on the 19th, 00:08–00:56 on the 20th.

    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 19th and 0 of 48 on the 20th.

    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 19584 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 1993: Friday 19 February.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 1993 falls on Friday 19 February. Caturdaśī runs from 16:27 on Fri 19 Feb to 18:41 on Sat 20 Feb and covers all of niśītha that night.

ahargana.org/baoding/festivals/1993/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 19 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 19 Feb
compat-drikpanchangComparison profileFri 19 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 19thCoveredNiśītha 20thCoveredRuled
Los Angeles00:27 → 02:4123:4248 min23:420 min19 Feb
Chicago02:27 → 04:4123:4048 min23:400 min19 Feb
Jersey City03:27 → 05:4123:4648 min23:460 min19 Feb
Port of Spain04:27 → 06:4123:5648 min23:560 min19 Feb
London08:27 → 10:4123:5048 min23:500 min19 Feb
Durban10:27 → 12:4123:4648 min23:460 min19 Feb
Dubai12:27 → 14:4100:0848 min00:080 min19 Feb
Delhi13:57 → 16:1100:1148 min00:110 min19 Feb
Kolkata13:57 → 16:1123:2648 min23:260 min19 Feb
Singapore16:27 → 18:4100:5448 min00:540 min19 Feb
Sydney19:27 → 21:4100:4548 min00:450 min19 Feb
Suva20:27 → 22:4123:5648 min23:560 min19 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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