Thursday 27 January

How it was decided

1. 01

   Aṅga

   Caturthī runs from 08:08 on Thu 27 Jan to 07:01 on Fri 28 Jan.

   1955-01-27T00:08:27Z → 1955-01-27T23:00:47Z

2. 02

   Kāla

   Pradoṣa is 2 muhūrtas after sunset: 17:32–19:24 on the 27th, 17:33–19:25 on the 28th.

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

3. 03

   Rule

   Caturthī must be present during pradoṣa. It covers 112 of 112 minutes on the 27th and 0 of 111 on the 28th.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

4. 04

   Tie-break

   Only one evening qualifies. No tie-break is needed.

   priority: unstated → only-day · margin 33829 s

5. 05

   Ruling

   Tila Caturthī, Baoding, 1955: Thursday 27 January.

   confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1955 falls on Thursday 27 January. Caturthī runs from 08:08 on Thu 27 Jan to 07:01 on Fri 28 Jan and covers all of pradoṣa that evening.

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Who says what

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