Friday 26 September

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 17:34 on Thu 25 Sep to 19:58 on Fri 26 Sep.

   1986-09-25T14:04:14Z → 1986-09-26T16:27:48Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 17:57–19:33 on the 25th, 17:56–19:32 on the 26th.

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

3. 03

   Rule

   Aṣṭamī must be present during pradoṣa. It covers 96 of 96 minutes on the 25th and 96 of 96 on the 26th.

   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 1386 s

5. 05

   Ruling

   Jitāṣṭamī, Tehran, 1986: Friday 26 September.

   confidence: boundary (tie-break-unstated)

Say it like this

In Tehran, Jitāṣṭamī (Jitiya) 1986 falls on Friday 26 September. Aṣṭamī runs from 17:34 on Thu 25 Sep to 19:58 on Fri 26 Sep and covers all of pradoṣa that evening. It also reaches the previous evening for 96 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.