Ruling · Mahāśivarātri · 1926

Thursday 11 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 250 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 Wednesday 10 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 Thursday 11 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 08:42 on Thu 11 Feb to 05:06 on Fri 12 Feb.

    1926-02-11T00:42:20Z → 1926-02-11T21:06:13Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:08–00:56 on the 10th, 00:08–00:56 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 15000 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 1926: Thursday 11 February.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri 1926 falls on Thursday 11 February. Caturdaśī runs from 08:42 on Thu 11 Feb to 05:06 on Fri 12 Feb and covers all of niśītha that night.

ahargana.org/baoding/festivals/1926/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 11 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 11 Feb
compat-drikpanchangComparison profileThu 11 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 11thCoveredNiśītha 12thCoveredRuled
Los Angeles16:42 → 13:0623:430 min23:430 min10 Feb
Chicago18:42 → 15:0623:410 min23:410 min10 Feb
Jersey City19:42 → 16:0623:460 min23:460 min10 Feb
Port of Spain20:42 → 17:0623:560 min23:560 min10 Feb
London00:42 → 21:0623:500 min23:500 min10 Feb
Durban02:42 → 23:0623:460 min23:460 min10 Feb
Dubai04:42 → 01:0600:0948 min00:090 min11 Feb
Delhi06:12 → 02:3600:1148 min00:110 min11 Feb
Kolkata06:12 → 02:3623:2748 min23:270 min11 Feb
Singapore07:42 → 04:0623:5548 min23:550 min11 Feb
Sydney10:42 → 07:0623:4648 min23:460 min11 Feb
Suva12:42 → 09:0623:5748 min23:570 min11 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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