Monday 31 January

How it was decided

1. 01

   Aṅga

   Pañcamī runs from 09:45 on Mon 31 Jan to 11:58 on Tue 1 Feb.

   2028-01-31T01:45:06Z → 2028-02-01T03:58:10Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 31st, 11:30–12:18 on the 1st.

   madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

3. 03

   Rule

   Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 28 of 48 on the 1st.

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

4. 04

   Tie-break

   Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

   priority: unstated → greater-coverage · margin 1173 s

5. 05

   Ruling

   Vasanta Pañcamī, Daqing, 2028: Monday 31 January.

   confidence: boundary (tie-break-unstated)

Say it like this

In Daqing, Vasanta Pañcamī 2028 falls on Monday 31 January. Pañcamī runs from 09:45 on Mon 31 Jan to 11:58 on Tue 1 Feb and covers all of madhyāhna that midday. It also reaches the next midday for 28 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.