Monday 27 August

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 11:22 on Mon 27 Aug to 13:47 on Tue 28 Aug.

   1990-08-27T18:21:51Z → 1990-08-28T20:46:30Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 27th, 12:05–12:53 on the 28th.

   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 27th and 48 of 48 on the 28th.

   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 2621 s

5. 05

   Ruling

   Rādhāṣṭamī, Phoenix, 1990: Monday 27 August.

   confidence: boundary (tie-break-unstated)

Say it like this

In Phoenix, Rādhāṣṭamī 1990 falls on Monday 27 August. Aṣṭamī runs from 11:22 on Mon 27 Aug to 13:47 on Tue 28 Aug and covers all of madhyāhna that midday. It also reaches the next midday for 48 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.