Sunday 4 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 17:22 on Fri 2 Mar to 19:17 on Sat 3 Mar.

   2007-03-02T21:21:35Z → 2007-03-03T23:17:07Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 15:51–18:17 on the 2nd, 15:51–18:17 on the 3rd.

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

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 55 of 146 minutes on the 2nd and 146 of 146 on the 3rd.

   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 3320 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Saturday 3 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Manaus, 2007: Sunday 4 March.

   confidence: boundary (tie-break-unstated)

Say it like this

In Manaus, Holī 2007 falls on Sunday 4 March. It is kept the day after Holikā Dahana, which falls on Saturday 3 March. Pūrṇimā runs from 17:22 on Fri 2 Mar to 19:17 on Sat 3 Mar and covers all of sāyāhna on the 3rd. It also reaches the previous late afternoon for 55 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.