Saturday 26 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 17:53 on Fri 25 Mar to 15:51 on Sat 26 Mar.

   2089-03-25T11:23:22Z → 2089-03-26T09:21:28Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 15:51–18:17 on the 25th, 15:51–18:17 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 24 of 146 minutes on the 25th and 0 of 146 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 28 s < 300 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Friday 25 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Yangon, 2089: Saturday 26 March.

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

Say it like this

In Yangon, Holī 2089 falls on Saturday 26 March. It is kept the day after Holikā Dahana, which falls on Friday 25 March. Pūrṇimā runs from 17:53 on Fri 25 Mar to 15:51 on Sat 26 Mar and covers 24 of 146 minutes of sāyāhna on the 25th. It also reaches the next late afternoon for 0 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 28 s from a threshold: 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.