Tuesday 28 September

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 16:17 on Tue 28 Sep to 18:30 on Wed 29 Sep.

   2021-09-28T12:47:12Z → 2021-09-29T15:00:07Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 17:52–19:29 on the 28th, 17:51–19:28 on the 29th.

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

3. 03

   Rule

   Aṣṭamī must be present during pradoṣa. It covers 97 of 97 minutes on the 28th and 39 of 97 on the 29th.

   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 2361 s

5. 05

   Ruling

   Jitāṣṭamī, Tehran, 2021: Tuesday 28 September.

   confidence: boundary (tie-break-unstated)

Say it like this

In Tehran, Jitāṣṭamī (Jitiya) 2021 falls on Tuesday 28 September. Aṣṭamī runs from 16:17 on Tue 28 Sep to 18:30 on Wed 29 Sep and covers all of pradoṣa that evening. It also reaches the next evening for 39 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.