Sunday 9 September

How it was decided

1. 01

   Aṅga

   Caturdaśī runs from 18:41 on Sun 9 Sep to 19:30 on Mon 10 Sep.

   2007-09-09T10:41:14Z → 2007-09-10T11:29:32Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 18:37–20:07 on the 9th, 18:35–20:06 on the 10th.

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

3. 03

   Rule

   Caturdaśī must be present during pradoṣa. It covers 86 of 90 minutes on the 9th and 54 of 91 on the 10th.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

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 251 s < 300 s

5. 05

   Ruling

   Aghora Caturdaśī, Baoding, 2007: Sunday 9 September.

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

Say it like this

In Baoding, Aghora Caturdaśī 2007 falls on Sunday 9 September. Caturdaśī runs from 18:41 on Sun 9 Sep to 19:30 on Mon 10 Sep and covers 86 of 90 minutes of pradoṣa that evening. It also reaches the next evening for 54 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 11 s from a threshold: 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.