Friday 19 October

How it was decided

1. 01

   Aṅga

   Pratipadā runs from 19:07 on Thu 18 Oct to 20:48 on Fri 19 Oct.

   1990-10-18T15:36:41Z → 1990-10-19T17:17:35Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 17:25–19:08 on the 18th, 17:24–19:07 on the 19th.

   pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

3. 03

   Rule

   Pratipadā must be present during pradoṣa. It covers 1 of 103 minutes on the 18th and 103 of 103 on the 19th.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

4. 04

   Tie-break

   Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

   priority: unstated → greater-coverage · margin 71 s < 300 s

5. 05

   Ruling

   Bali Pūjā, Tehran, 1990: Friday 19 October.

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

Say it like this

In Tehran, Bali Pūjā 1990 falls on Friday 19 October. Pratipadā runs from 19:07 on Thu 18 Oct to 20:48 on Fri 19 Oct and covers all of pradoṣa that evening. It also reaches the previous evening for 1 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 1 min 11 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.