Ruling · Mahāśivarātri (Shivratri) · 2099

Wednesday 18 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 375 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Tuesday 17 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

Night of Wednesday 18 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

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

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 07:11 on Wed 18 Feb to 09:33 on Thu 19 Feb.

    2099-02-17T23:10:35Z → 2099-02-19T01:33:26Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:08–00:56 on the 17th, 00:08–00:56 on the 18th.

    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 17th and 48 of 48 on the 18th.

    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 22476 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 2099: Wednesday 18 February.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 2099 falls on Wednesday 18 February. Caturdaśī runs from 07:11 on Wed 18 Feb to 09:33 on Thu 19 Feb and covers all of niśītha that night.

ahargana.org/baoding/festivals/2099/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 18 Feb
compat-drikpanchangComparison profileWed 18 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 17thCoveredNiśītha 19thCoveredRuled
Los Angeles15:11 → 17:3323:4348 min23:430 min17 Feb
Chicago17:11 → 19:3323:4048 min23:400 min17 Feb
Jersey City18:11 → 20:3323:4648 min23:460 min17 Feb
Port of Spain19:11 → 21:3323:5648 min23:560 min17 Feb
London23:11 → 01:3323:5048 min23:500 min17 Feb
Durban01:11 → 03:3323:460 min23:460 min18 Feb
Dubai03:11 → 05:3300:090 min00:090 min18 Feb
Delhi04:41 → 07:0300:110 min00:110 min18 Feb
Kolkata04:41 → 07:0323:270 min23:260 min18 Feb
Singapore07:11 → 09:3300:550 min00:550 min18 Feb
Sydney10:11 → 12:3300:460 min00:450 min18 Feb
Suva11:11 → 13:3323:570 min23:560 min18 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

About Ahargaṇa