Sunday 1 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 17:45 on Fri 28 Feb to 16:38 on Sat 29 Feb.

   2048-02-28T15:44:56Z → 2048-02-29T14:38:13Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 15:35–17:53 on the 28th, 15:35–17:53 on the 29th.

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

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 8 of 138 minutes on the 28th and 63 of 138 on the 29th.

   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 468 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Saturday 29 February is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Cairo, 2048: Sunday 1 March.

   confidence: boundary (tie-break-unstated)

Say it like this

In Cairo, Holī 2048 falls on Sunday 1 March. It is kept the day after Holikā Dahana, which falls on Saturday 29 February. Pūrṇimā runs from 17:45 on Fri 28 Feb to 16:38 on Sat 29 Feb and covers 63 of 138 minutes of sāyāhna on the 29th. It also reaches the previous late afternoon for 8 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.