Monday 18 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 18:41 on Sat 16 Mar to 19:11 on Sun 17 Mar.

   1946-03-16T18:40:47Z → 1946-03-17T19:10:57Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 16:55–19:20 on the 16th, 16:55–19:20 on the 17th.

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

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 39 of 144 minutes on the 16th and 136 of 145 on the 17th.

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

4. 04

   Tie-break

   Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

   priority: unstated → greater-coverage · margin 546 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Sunday 17 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Dakar, 1946: Monday 18 March.

   confidence: boundary (tie-break-unstated)

Say it like this

In Dakar, Holī 1946 falls on Monday 18 March. It is kept the day after Holikā Dahana, which falls on Sunday 17 March. Pūrṇimā runs from 18:41 on Sat 16 Mar to 19:11 on Sun 17 Mar and covers 136 of 145 minutes of sāyāhna on the 17th. It also reaches the previous late afternoon for 39 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

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Who says what

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