Friday 23 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 17:52 on Thu 22 Mar to 17:42 on Fri 23 Mar.

   2035-03-22T22:52:07Z → 2035-03-23T22:42:10Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 16:38–19:05 on the 22nd, 16:38–19:06 on the 23rd.

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

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 73 of 147 minutes on the 22nd and 64 of 147 on the 23rd.

   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 3820 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Thursday 22 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Chicago, 2035: Friday 23 March.

   confidence: boundary (tie-break-unstated)

Say it like this

In Chicago, Holī 2035 falls on Friday 23 March. It is kept the day after Holikā Dahana, which falls on Thursday 22 March. Pūrṇimā runs from 17:52 on Thu 22 Mar to 17:42 on Fri 23 Mar and covers 73 of 147 minutes of sāyāhna on the 22nd. It also reaches the next late afternoon for 64 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.