Thursday 26 January

How it was decided

1. 01

   Aṅga

   Caturdaśī runs from 04:01 on Thu 26 Jan to 05:45 on Fri 27 Jan.

   1922-01-25T20:01:20Z → 1922-01-26T21:44:45Z

2. 02

   Kāla

   Aruṇodaya is 2 muhūrtas before sunrise: 05:38–07:31 on the 26th, 05:38–07:30 on the 27th.

   arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

3. 03

   Rule

   Caturdaśī must be present during aruṇodaya. It covers 112 of 112 minutes on the 26th and 7 of 112 on the 27th.

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

4. 04

   Tie-break

   Both dawns qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

   priority: unstated → greater-coverage · margin 404 s

5. 05

   Ruling

   Yama Tarpaṇa, Baoding, 1922: Thursday 26 January.

   confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Yama Tarpaṇa 1922 falls on Thursday 26 January. Caturdaśī runs from 04:01 on Thu 26 Jan to 05:45 on Fri 27 Jan and covers all of aruṇodaya that dawn. It also reaches the next dawn for 7 minutes; the rule does not say which to take, and the one covered longer is ruled: 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.