Tuesday 17 January

How it was decided

1. 01

   Aṅga

   Caturdaśī runs from 07:14 on Mon 16 Jan to 09:46 on Tue 17 Jan.

   2045-01-15T23:13:41Z → 2045-01-17T01:46:14Z

2. 02

   Kāla

   Aruṇodaya is 2 muhūrtas before sunrise: 05:41–07:35 on the 16th, 05:41–07:35 on the 17th.

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

3. 03

   Rule

   Caturdaśī must be present during aruṇodaya. It covers 21 of 114 minutes on the 16th and 114 of 114 on the 17th.

   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 1284 s

5. 05

   Ruling

   Yama Tarpaṇa, Baoding, 2045: Tuesday 17 January.

   confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Yama Tarpaṇa 2045 falls on Tuesday 17 January. Caturdaśī runs from 07:14 on Mon 16 Jan to 09:46 on Tue 17 Jan and covers all of aruṇodaya that dawn. It also reaches the previous dawn for 21 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.