Ruling · Mahāśivarātri · 1918

Monday 11 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 414 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 Sunday 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 Monday 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 11:27 on Mon 11 Mar to 07:46 on Tue 12 Mar.

    1918-03-11T03:26:41Z → 1918-03-11T23:46:10Z

  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 24846 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 1918: Monday 11 March.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri 1918 falls on Monday 11 March. Caturdaśī runs from 11:27 on Mon 11 Mar to 07:46 on Tue 12 Mar and covers all of niśītha that night.

ahargana.org/baoding/festivals/1918/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 11 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 11 Mar
compat-drikpanchangComparison profileMon 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 11thCoveredNiśītha 12thCoveredRuled
Los Angeles19:27 → 15:4623:390 min23:390 min10 Mar
Chicago21:27 → 17:4623:360 min23:360 min10 Mar
Jersey City22:27 → 18:4623:420 min23:420 min10 Mar
Port of Spain23:27 → 19:4623:520 min23:520 min10 Mar
London03:27 → 23:4623:460 min23:460 min11 Mar
Durban05:27 → 01:4623:4248 min23:420 min11 Mar
Dubai07:08 → 03:2723:4648 min23:460 min11 Mar
Delhi08:57 → 05:1600:0748 min00:070 min11 Mar
Kolkata08:57 → 05:1623:2348 min23:220 min11 Mar
Singapore10:27 → 06:4623:5148 min23:510 min11 Mar
Sydney13:27 → 09:4623:4248 min23:410 min11 Mar
Suva15:27 → 11:4623:5348 min23:520 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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