Ruling · Mahāśivarātri (Shivratri) · 2071

Saturday 28 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 312 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 27 February

Caturdaśī is absent from niśītha. Not taken.

niśītha begins 00:07  00:55 niśītha ends
23:1923:4300:0700:3100:5501:1901:43

0 of 48 minutes covered

Night of Saturday 28 February

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 06:07 on Sat 28 Feb to 07:33 on Sun 1 Mar.

    2071-02-27T22:06:57Z → 2071-02-28T23:33:15Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 27th, 00:06–00:54 on the 28th.

    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 27th and 48 of 48 on the 28th.

    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 18746 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 2071: Saturday 28 February.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 2071 falls on Saturday 28 February. Caturdaśī runs from 06:07 on Sat 28 Feb to 07:33 on Sun 1 Mar and covers all of niśītha that night.

ahargana.org/baoding/festivals/2071/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 28 Feb
compat-drikpanchangComparison profileSat 28 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 27thCoveredNiśītha 28thCoveredRuled
Los Angeles14:07 → 15:3323:4148 min23:410 min27 Feb
Chicago16:07 → 17:3323:3948 min23:390 min27 Feb
Jersey City17:07 → 18:3323:4548 min23:440 min27 Feb
Port of Spain18:07 → 19:3323:5548 min23:540 min27 Feb
London22:07 → 23:3323:4948 min23:480 min27 Feb
Durban00:07 → 01:3323:4526 min23:4548 min28 Feb
Dubai02:07 → 03:3300:070 min00:0748 min28 Feb
Delhi03:37 → 05:0300:100 min00:0948 min28 Feb
Kolkata03:37 → 05:0323:250 min23:2548 min28 Feb
Singapore06:07 → 07:3300:530 min00:5348 min28 Feb
Sydney09:07 → 10:3300:440 min00:4448 min28 Feb
Suva10:07 → 11:3323:550 min23:5548 min28 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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