Friday 16 September

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 11:15 on Fri 16 Sep to 11:22 on Sat 17 Sep.

   1904-09-16T03:14:59Z → 1904-09-17T03:21:41Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 16th, 11:10–11:58 on the 17th.

   madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

3. 03

   Rule

   Aṣṭamī must be present during madhyāhna. It covers 44 of 48 minutes on the 16th and 11 of 48 on the 17th.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

4. 04

   Tie-break

   Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

   priority: unstated → greater-coverage · margin 262 s < 300 s

5. 05

   Ruling

   Rādhāṣṭamī, Daqing, 1904: Friday 16 September.

   confidence: boundary (margin, tie-break-unstated)

Say it like this

In Daqing, Rādhāṣṭamī 1904 falls on Friday 16 September. Aṣṭamī runs from 11:15 on Fri 16 Sep to 11:22 on Sat 17 Sep and covers 44 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 11 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 22 s from a threshold: 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.