Tuesday 27 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 18:19 on Sun 25 Mar to 16:41 on Mon 26 Mar.

   1956-03-25T14:48:50Z → 1956-03-26T13:11:07Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 15:52–18:20 on the 25th, 15:53–18:21 on the 26th.

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

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 1 of 148 minutes on the 25th and 49 of 148 on the 26th.

   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 57 s < 300 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Monday 26 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Tehran, 1956: Tuesday 27 March.

   confidence: boundary (margin, tie-break-unstated)

Say it like this

In Tehran, Holī 1956 falls on Tuesday 27 March. It is kept the day after Holikā Dahana, which falls on Monday 26 March. Pūrṇimā runs from 18:19 on Sun 25 Mar to 16:41 on Mon 26 Mar and covers 49 of 148 minutes of sāyāhna on the 26th. It also reaches the previous late afternoon for 1 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 0 min 57 s from a threshold: 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.