Wednesday 12 December

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 15:33 on Wed 12 Dec to 17:30 on Thu 13 Dec.

   1951-12-12T07:33:22Z → 1951-12-13T09:30:26Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 16:56–18:52 on the 12th, 16:56–18:52 on the 13th.

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

3. 03

   Rule

   Pūrṇimā must be present during pradoṣa. It covers 116 of 116 minutes on the 12th and 34 of 116 on the 13th.

   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 2056 s

5. 05

   Ruling

   Dattātreyotpatti, Baoding, 1951: Wednesday 12 December.

   confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Dattātreyotpatti (Datta Jayanti) 1951 falls on Wednesday 12 December. Pūrṇimā runs from 15:33 on Wed 12 Dec to 17:30 on Thu 13 Dec and covers all of pradoṣa that evening. It also reaches the next evening for 34 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

Copy with citation

Who says what

Institutional rulings are recorded with a source address, and are never edited to agree.