Wednesday 26 January

How it was decided

1. 01

   Aṅga

   Pañcamī runs from 09:48 on Wed 26 Jan to 12:05 on Thu 27 Jan.

   1966-01-26T01:48:05Z → 1966-01-27T04:05:27Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 26th, 11:29–12:17 on the 27th.

   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 26th and 37 of 48 on the 27th.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

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 690 s

5. 05

   Ruling

   Vasanta Pañcamī, Daqing, 1966: Wednesday 26 January.

   confidence: boundary (tie-break-unstated)

Say it like this

In Daqing, Vasanta Pañcamī 1966 falls on Wednesday 26 January. Pañcamī runs from 09:48 on Wed 26 Jan to 12:05 on Thu 27 Jan and covers all of madhyāhna that midday. It also reaches the next midday for 37 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.