Friday 18 March

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 15:59 on Thu 17 Mar to 18:24 on Fri 18 Mar.

   1927-03-17T07:58:45Z → 1927-03-18T10:24:01Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 16:02–18:26 on the 17th, 16:03–18:27 on the 18th.

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

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 143 of 143 minutes on the 17th and 141 of 144 on the 18th.

   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 150 s < 300 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Thursday 17 March is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Baoding, 1927: Friday 18 March.

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

Say it like this

In Baoding, Holī 1927 falls on Friday 18 March. It is kept the day after Holikā Dahana, which falls on Thursday 17 March. Pūrṇimā runs from 15:59 on Thu 17 Mar to 18:24 on Fri 18 Mar and covers all of sāyāhna on the 17th. It also reaches the next late afternoon for 141 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 2 min 30 s from a threshold: treat the date as contested.

Copy with citation

Who says what

Institutional rulings are recorded with a source address, and are never edited to agree.