Tuesday 27 February

How it was decided

1. 01

   Aṅga

   Pūrṇimā runs from 07:20 on Mon 26 Feb to 09:07 on Tue 27 Feb.

   1945-02-25T22:20:00Z → 1945-02-27T00:06:44Z

2. 02

   Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 16:09–18:20 on the 26th, 16:10–18:22 on the 27th.

   sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′

3. 03

   Rule

   Pūrṇimā must be present during sāyāhna. It covers 131 of 131 minutes on the 26th and 0 of 131 on the 27th.

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

4. 04

   Tie-break

   Only one late afternoon qualifies. No tie-break is needed.

   priority: unstated → only-day · margin 25411 s

5. 05

   Counted

   Holī is kept the day after Holikā Dahana: Monday 26 February is the day taken above.

   follows: holika-dahana + 1 d

6. 06

   Ruling

   Holī, Daqing, 1945: Tuesday 27 February.

   confidence: determinate

Say it like this

In Daqing, Holī 1945 falls on Tuesday 27 February. It is kept the day after Holikā Dahana, which falls on Monday 26 February. Pūrṇimā runs from 07:20 on Mon 26 Feb to 09:07 on Tue 27 Feb and covers all of sāyāhna on the 26th.

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Who says what

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