Saturday 23 February

How it was decided

1. 01

   Aṅga

   Caturdaśī runs from 00:11 on Sat 23 Feb to 01:07 on Sun 24 Feb.

   2047-02-22T16:11:25Z → 2047-02-23T17:07:17Z

2. 02

   Kāla

   Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 22nd, 00:07–00:55 on the 23rd.

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

3. 03

   Rule

   Caturdaśī must be present during niśītha. It covers 44 of 48 minutes on the 22nd and 48 of 48 on the 23rd.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

4. 04

   Tie-break

   Both nights qualify and the cited authorities disagree. The one covered longer is ruled, as a boundary.

   priority: disputed → greater-coverage · margin 250 s < 300 s

5. 05

   Ruling

   Mahāśivarātri, Baoding, 2047: Saturday 23 February.

   confidence: boundary (margin, tie-break-disputed)

Say it like this

In Baoding, Mahāśivarātri (Shivratri) 2047 falls on Saturday 23 February. Caturdaśī runs from 00:11 on Sat 23 Feb to 01:07 on Sun 24 Feb and covers all of niśītha that night. It also reaches the previous night for 44 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 10 s from a threshold: treat the date as contested.

Copy with citation

Who says what

Institutional rulings are recorded with a source address, and are never edited to agree.