Sunday 24 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 05:13 on Sat 23 Mar to 01:26 on Sun 24 Mar.

   1940-03-22T23:20:02Z → 1940-03-23T19:33:15Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 15:31–17:57 on the 22nd, 15:32–17:57 on the 23rd.

   sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 0 of 146 minutes on the 22nd and 146 of 146 on the 23rd.

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

4. 04

   Tie-break

   Only one late afternoon qualifies. No tie-break is needed.

   priority: unstated → only-day · margin 26926 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Saturday 23 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Chattogram, 1940: Sunday 24 March.

   confidence: determinate

Say it like this

In Chattogram, Holī 1940 falls on Sunday 24 March. It is kept the day after Holikā Dahana, which falls on Saturday 23 March. Pūrṇimā runs from 05:13 on Sat 23 Mar to 01:26 on Sun 24 Mar and covers all of sāyāhna on the 23rd.

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Who says what

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