Tuesday 14 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 17:27 on Mon 13 Mar to 16:58 on Tue 14 Mar.

   1911-03-14T00:27:19Z → 1911-03-14T23:58:04Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 16:12–18:34 on the 13th, 16:12–18:35 on the 14th.

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

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 66 of 142 minutes on the 13th and 46 of 143 on the 14th.

   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 2768 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Monday 13 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Phoenix, 1911: Tuesday 14 March.

   confidence: boundary (tie-break-unstated)

Say it like this

In Phoenix, Holī 1911 falls on Tuesday 14 March. It is kept the day after Holikā Dahana, which falls on Monday 13 March. Pūrṇimā runs from 17:27 on Mon 13 Mar to 16:58 on Tue 14 Mar and covers 66 of 142 minutes of sāyāhna on the 13th. It also reaches the next late afternoon for 46 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.