Tuesday 23 September

How it was decided

1. 01

   Aṅga

   Aṣṭamī runs from 19:38 on Mon 22 Sep to 19:10 on Tue 23 Sep.

   1913-09-23T00:38:21Z → 1913-09-24T00:10:24Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 18:04–19:39 on the 22nd, 18:04–19:39 on the 23rd.

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

3. 03

   Rule

   Aṣṭamī must be present during pradoṣa. It covers 1 of 95 minutes on the 22nd and 67 of 95 on the 23rd.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

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 35 s < 300 s

5. 05

   Ruling

   Jitāṣṭamī, Lima, 1913: Tuesday 23 September.

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

Say it like this

In Lima, Jitāṣṭamī (Jitiya) 1913 falls on Tuesday 23 September. Aṣṭamī runs from 19:38 on Mon 22 Sep to 19:10 on Tue 23 Sep and covers 67 of 95 minutes 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 0 min 35 s from a threshold: 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.