Saturday 10 February

How it was decided

1. 01

   Aṅga

   Pañcamī runs from 11:37 on Sat 10 Feb to 12:21 on Sun 11 Feb.

   1951-02-10T03:36:56Z → 1951-02-11T04:20:41Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 10th, 12:09–12:57 on the 11th.

   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 10th and 12 of 48 on the 11th.

   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 717 s

5. 05

   Ruling

   Vasanta Pañcamī, Baoding, 1951: Saturday 10 February.

   confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Vasanta Pañcamī 1951 falls on Saturday 10 February. Pañcamī runs from 11:37 on Sat 10 Feb to 12:21 on Sun 11 Feb and covers all of madhyāhna that midday. It also reaches the next midday for 12 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

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Who says what

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