Friday 16 November

How it was decided

1. 01

   Aṅga

   Navamī runs from 05:57 on Fri 16 Nov to 07:03 on Sat 17 Nov.

   1923-11-15T21:57:15Z → 1923-11-16T23:03:17Z

2. 02

   Kāla

   Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:01–10:22 on the 16th, 07:02–10:22 on the 17th.

   purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′

3. 03

   Rule

   Navamī must be present during pūrvāhṇa. It covers 201 of 201 minutes on the 16th and 1 of 201 on the 17th.

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

4. 04

   Tie-break

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

   priority: unstated → greater-coverage · margin 90 s < 300 s

5. 05

   Ruling

   Akṣaya Navamī, Baoding, 1923: Friday 16 November.

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

Say it like this

In Baoding, Akṣaya Navamī (Amla Navami) 1923 falls on Friday 16 November. Navamī runs from 05:57 on Fri 16 Nov to 07:03 on Sat 17 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the next forenoon 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 30 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.