Tuesday 6 November

How it was decided

1. 01

   Aṅga

   Pratipadā runs from 07:11 on Mon 5 Nov to 09:46 on Tue 6 Nov.

   1945-11-04T23:10:36Z → 1945-11-06T01:45:57Z

2. 02

   Kāla

   Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:27–09:45 on the 5th, 06:28–09:45 on the 6th.

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

3. 03

   Rule

   Pratipadā must be present during pūrvāhṇa. It covers 154 of 198 minutes on the 5th and 197 of 197 on the 6th.

   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 54 s < 300 s

5. 05

   Ruling

   Dyūta Pratipad, Daqing, 1945: Tuesday 6 November.

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

Say it like this

In Daqing, Dyūta Pratipad 1945 falls on Tuesday 6 November. Pratipadā runs from 07:11 on Mon 5 Nov to 09:46 on Tue 6 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 154 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 54 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.