Sunday 21 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 16:28 on Sat 20 Mar to 17:08 on Sun 21 Mar.

   1943-03-20T21:28:15Z → 1943-03-21T22:07:57Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 15:54–18:19 on the 20th, 15:53–18:18 on the 21st.

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

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 111 of 145 minutes on the 20th and 75 of 145 on the 21st.

   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 2070 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Saturday 20 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Lima, 1943: Sunday 21 March.

   confidence: boundary (tie-break-unstated)

Say it like this

In Lima, Holī 1943 falls on Sunday 21 March. It is kept the day after Holikā Dahana, which falls on Saturday 20 March. Pūrṇimā runs from 16:28 on Sat 20 Mar to 17:08 on Sun 21 Mar and covers 111 of 145 minutes of sāyāhna on the 20th. It also reaches the next late afternoon for 75 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.