Thursday 20 September

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 15:08 on Thu 20 Sep to 17:45 on Fri 21 Sep.

   2057-09-20T07:08:27Z → 2057-09-21T09:44:44Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 17:41–19:15 on the 20th, 17:39–19:14 on the 21st.

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

3. 03

   Rule

   Aṣṭamī must be present during pradoṣa. It covers 94 of 94 minutes on the 20th and 5 of 94 on the 21st.

   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 319 s

5. 05

   Ruling

   Jitāṣṭamī, Daqing, 2057: Thursday 20 September.

   confidence: boundary (tie-break-unstated)

Say it like this

In Daqing, Jitāṣṭamī (Jitiya) 2057 falls on Thursday 20 September. Aṣṭamī runs from 15:08 on Thu 20 Sep to 17:45 on Fri 21 Sep and covers all of pradoṣa that evening. It also reaches the next evening for 5 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.