Thursday 10 September

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 19:24 on Wed 9 Sep to 21:08 on Thu 10 Sep.

   1925-09-09T11:24:19Z → 1925-09-10T13:08:03Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 18:04–19:43 on the 9th, 18:05–19:43 on the 10th.

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

3. 03

   Rule

   Aṣṭamī must be present during pradoṣa. It covers 18 of 99 minutes on the 9th and 98 of 98 on the 10th.

   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 1097 s

5. 05

   Ruling

   Jitāṣṭamī, Perth, 1925: Thursday 10 September.

   confidence: boundary (tie-break-unstated)

Say it like this

In Perth, Jitāṣṭamī (Jitiya) 1925 falls on Thursday 10 September. Aṣṭamī runs from 19:24 on Wed 9 Sep to 21:08 on Thu 10 Sep and covers all of pradoṣa that evening. It also reaches the previous evening for 18 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.