Friday 31 October

How it was decided

1. 01

   Aṅga

   Pratipadā runs from 16:14 on Fri 31 Oct to 17:44 on Sat 1 Nov.

   1902-10-31T08:13:32Z → 1902-11-01T09:43:56Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 16:28–18:19 on the 31st, 16:27–18:18 on the 1st.

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

3. 03

   Rule

   Pratipadā must be present during pradoṣa. It covers 111 of 111 minutes on the 31st and 77 of 111 on the 1st.

   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 878 s

5. 05

   Ruling

   Bali Pūjā, Daqing, 1902: Friday 31 October.

   confidence: boundary (tie-break-unstated)

Say it like this

In Daqing, Bali Pūjā 1902 falls on Friday 31 October. Pratipadā runs from 16:14 on Fri 31 Oct to 17:44 on Sat 1 Nov and covers all of pradoṣa that evening. It also reaches the next evening for 77 minutes; the rule does not say which to take, and the one covered longer is ruled: 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.