Wednesday 21 February

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 05:01 on Wed 21 Feb to 05:12 on Thu 22 Feb.

   1951-02-20T21:00:41Z → 1951-02-21T21:12:10Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 21st, 12:08–12:56 on the 22nd.

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

3. 03

   Rule

   Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.

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

4. 04

   Tie-break

   Only one midday qualifies. No tie-break is needed.

   priority: paraviddha → only-day · margin 24957 s

5. 05

   Ruling

   Māghī Pūrṇimā, Baoding, 1951: Wednesday 21 February.

   confidence: determinate

Say it like this

In Baoding, Māghī Pūrṇimā 1951 falls on Wednesday 21 February. Pūrṇimā runs from 05:01 on Wed 21 Feb to 05:12 on Thu 22 Feb and covers all of madhyāhna that midday.

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Who says what

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