Thursday 10 September

How it was decided

1. 01

   Aṅga

   Pañcamī runs from 10:38 on Thu 10 Sep to 11:53 on Fri 11 Sep.

   1964-09-10T02:37:49Z → 1964-09-11T03:52:48Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 10th, 11:50–12:38 on the 11th.

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

3. 03

   Rule

   Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 10th and 2 of 48 on the 11th.

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

4. 04

   Tie-break

   Both middays qualify and the cited authorities disagree. The one covered longer is ruled, as a boundary.

   priority: disputed → greater-coverage · margin 138 s < 300 s

5. 05

   Ruling

   Ṛṣi Pañcamī, Baoding, 1964: Thursday 10 September.

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

Say it like this

In Baoding, Ṛṣi Pañcamī 1964 falls on Thursday 10 September. Pañcamī runs from 10:38 on Thu 10 Sep to 11:53 on Fri 11 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 2 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 2 min 18 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.