Friday 25 January

How it was decided

1. 01

   Aṅga

   Pañcamī runs from 10:04 on Fri 25 Jan to 12:23 on Sat 26 Jan.

   1985-01-25T06:34:06Z → 1985-01-26T08:53:09Z

2. 02

   Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 25th, 11:53–12:41 on the 26th.

   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 25th and 30 of 48 on the 26th.

   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 1075 s

5. 05

   Ruling

   Vasanta Pañcamī, Tehran, 1985: Friday 25 January.

   confidence: boundary (tie-break-unstated)

Say it like this

In Tehran, Vasanta Pañcamī 1985 falls on Friday 25 January. Pañcamī runs from 10:04 on Fri 25 Jan to 12:23 on Sat 26 Jan and covers all of madhyāhna that midday. It also reaches the next midday for 30 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.