Monday 17 August

How it was decided

1. 01

   Aṅga

   Caturdaśī runs from 16:28 on Mon 17 Aug to 18:58 on Tue 18 Aug.

   1925-08-17T08:28:07Z → 1925-08-18T10:58:24Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 18:48–20:07 on the 17th, 18:46–20:06 on the 18th.

   pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

3. 03

   Rule

   Caturdaśī must be present during pradoṣa. It covers 79 of 79 minutes on the 17th and 12 of 79 on the 18th.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

4. 04

   Tie-break

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

   priority: unstated → greater-coverage · margin 737 s

5. 05

   Ruling

   Aghora Caturdaśī, Daqing, 1925: Monday 17 August.

   confidence: boundary (tie-break-unstated)

Say it like this

In Daqing, Aghora Caturdaśī 1925 falls on Monday 17 August. Caturdaśī runs from 16:28 on Mon 17 Aug to 18:58 on Tue 18 Aug and covers all of pradoṣa that evening. It also reaches the next evening for 12 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.