Sunday 7 September

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 08:52 on Sun 7 Sep to 11:17 on Mon 8 Sep.

   2008-09-07T00:51:47Z → 2008-09-08T03:17:13Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 7th, 11:13–12:01 on the 8th.

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

3. 03

   Rule

   Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 4 of 48 on the 8th.

   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 240 s < 300 s

5. 05

   Ruling

   Rādhāṣṭamī, Daqing, 2008: Sunday 7 September.

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

Say it like this

In Daqing, Rādhāṣṭamī 2008 falls on Sunday 7 September. Aṣṭamī runs from 08:52 on Sun 7 Sep to 11:17 on Mon 8 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 4 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 00 s from a threshold: treat the date as contested.

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Who says what

Institutional rulings are recorded with a source address, and are never edited to agree.