Wednesday 21 October

How it was decided

1. 01

   Aṅga

   Pratipadā runs from 18:09 on Tue 20 Oct to 20:41 on Wed 21 Oct.

   1998-10-20T10:09:23Z → 1998-10-21T12:41:01Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 16:45–18:32 on the 20th, 16:43–18:31 on the 21st.

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

3. 03

   Rule

   Pratipadā must be present during pradoṣa. It covers 22 of 107 minutes on the 20th and 107 of 107 on the 21st.

   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 1349 s

5. 05

   Ruling

   Bali Pūjā, Daqing, 1998: Wednesday 21 October.

   confidence: boundary (tie-break-unstated)

Say it like this

In Daqing, Bali Pūjā 1998 falls on Wednesday 21 October. Pratipadā runs from 18:09 on Tue 20 Oct to 20:41 on Wed 21 Oct and covers all of pradoṣa that evening. It also reaches the previous evening for 22 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.