Ruling · Mahāśivarātri (Shivratri) · 2070

Tuesday 11 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 50 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 10 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 11 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 03:00 on Tue 11 Mar to 01:42 on Wed 12 Mar.

    2070-03-10T19:00:13Z → 2070-03-11T17:41:55Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:04–00:52 on the 10th, 00:04–00:52 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 3009 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 2070: Tuesday 11 March.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 2070 falls on Tuesday 11 March. Caturdaśī runs from 03:00 on Tue 11 Mar to 01:42 on Wed 12 Mar and covers all of niśītha that night.

ahargana.org/baoding/festivals/2070/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 11 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 11 Mar
compat-drikpanchangComparison profileTue 11 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 10thCoveredNiśītha 11thCoveredRuled
Los Angeles12:00 → 10:4200:3948 min00:380 min10 Mar
Chicago14:00 → 12:4200:3648 min00:360 min10 Mar
Jersey City15:00 → 13:4200:4248 min00:420 min10 Mar
Port of Spain15:00 → 13:4223:5248 min23:520 min10 Mar
London19:00 → 17:4223:4648 min23:460 min10 Mar
Durban21:00 → 19:4223:4248 min23:420 min10 Mar
Dubai23:00 → 21:4200:0548 min00:040 min10 Mar
Delhi00:30 → 23:1200:0725 min00:070 min10 Mar
Kolkata00:30 → 23:1223:230 min23:220 min10 Mar
Singapore03:00 → 01:4200:510 min00:5148 min11 Mar
Sydney06:00 → 04:4200:420 min00:4148 min11 Mar
Suva07:00 → 05:4223:530 min23:5248 min11 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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