Sunday 2 October

How it was decided

1. 01

   Aṅga

   Navamī runs from 12:31 on Sun 2 Oct to 11:51 on Mon 3 Oct.

   2033-10-02T04:30:49Z → 2033-10-03T03:51:29Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 2nd, 11:43–12:31 on the 3rd.

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

3. 03

   Rule

   Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 2nd and 9 of 48 on the 3rd.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

4. 04

   Tie-break

   Both middays qualify. Pūrvaviddhā: the first is taken.

   priority: purvaviddha → purvaviddha · margin 23 s < 300 s

5. 05

   Ruling

   Mahānavamī, Baoding, 2033: Sunday 2 October.

   confidence: boundary (margin)

Say it like this

In Baoding, Mahānavamī 2033 falls on Sunday 2 October. Navamī runs from 12:31 on Sun 2 Oct to 11:51 on Mon 3 Oct and covers 0 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 9 minutes; by the rule the first midday is taken. It is 0 min 23 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.