Public holidays
1644, Slovenia
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1644 | New Year's Day |
| 2 | Saturday, 2 January 1644 | New Year Holiday |
| 3 | Monday, 8 February 1644 | Preseren's Day |
| 4 | Sunday, 27 March 1644 | Easter |
| 5 | Monday, 28 March 1644 | Easter Monday |
| 6 | Wednesday, 27 April 1644 | Resistance Day |
| 7 | Sunday, 1 May 1644 | May Day |
| 8 | Monday, 2 May 1644 | May Day Holiday |
| 9 | Sunday, 15 May 1644 | Whitsunday |
| 10 | Saturday, 25 June 1644 | Statehood Day |
| 11 | Monday, 15 August 1644 | Assumption Day |
| 12 | Monday, 31 October 1644 | Reformation Day |
| 13 | Tuesday, 1 November 1644 | All Saints' Day |
| 14 | Sunday, 25 December 1644 | Christmas Day |
| 15 | Monday, 26 December 1644 | Independence and Unity Day |