Tuesday 19 September

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 18:32 on Mon 18 Sep to 20:45 on Tue 19 Sep.

   1916-09-18T16:32:12Z → 1916-09-19T18:44:34Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 17:57–19:31 on the 18th, 17:56–19:30 on the 19th.

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

3. 03

   Rule

   Aṣṭamī must be present during pradoṣa. It covers 59 of 94 minutes on the 18th and 94 of 94 on the 19th.

   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 2113 s

5. 05

   Ruling

   Jitāṣṭamī, Cairo, 1916: Tuesday 19 September.

   confidence: boundary (tie-break-unstated)

Say it like this

In Cairo, Jitāṣṭamī (Jitiya) 1916 falls on Tuesday 19 September. Aṣṭamī runs from 18:32 on Mon 18 Sep to 20:45 on Tue 19 Sep and covers all of pradoṣa that evening. It also reaches the previous evening for 59 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.