Ruling · Mahāśivarātri · 1929

Saturday 9 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 Saturday 9 March

Taken. The only night Caturdaśī reaches.

niśītha begins 00:05  00:53 niśītha ends
23:1723:4100:0500:2900:5301:1701:41

48 of 48 minutes covered

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

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

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 17:11 on Sat 9 Mar to 17:10 on Sun 10 Mar.

    1929-03-09T09:10:36Z → 1929-03-10T09:10:11Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:05–00:53 on the 9th, 00:04–00:52 on the 10th.

    nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.

    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 24834 s

  5. 05

    Ruling

    Mahāśivarātri, Baoding, 1929: Saturday 9 March.

    confidence: determinate

Say it like this

In Baoding, Mahāśivarātri 1929 falls on Saturday 9 March. Caturdaśī runs from 17:11 on Sat 9 Mar to 17:10 on Sun 10 Mar and covers all of niśītha that night.

ahargana.org/baoding/festivals/1929/maha-shivaratri · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 9 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 9 Mar
compat-drikpanchangComparison profileSat 9 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 9thCoveredNiśītha 10thCoveredRuled
Los Angeles01:11 → 01:1023:3948 min23:390 min9 Mar
Chicago03:11 → 03:1023:3748 min23:370 min9 Mar
Jersey City04:11 → 04:1023:4348 min23:420 min9 Mar
Port of Spain05:11 → 05:1023:5348 min23:520 min9 Mar
London09:11 → 09:1023:4748 min23:460 min9 Mar
Durban11:11 → 11:1023:4348 min23:420 min9 Mar
Dubai13:11 → 13:1000:0548 min00:050 min9 Mar
Delhi14:41 → 14:4000:0848 min00:070 min9 Mar
Kolkata14:41 → 14:4023:2348 min23:230 min9 Mar
Singapore16:11 → 16:1023:5148 min23:510 min9 Mar
Sydney19:11 → 19:1023:4248 min23:420 min9 Mar
Suva21:11 → 21:1023:5348 min23:530 min9 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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