Public holidays
1663, Slovenia
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1663 | New Year's Day |
| 2 | Tuesday, 2 January 1663 | New Year Holiday |
| 3 | Thursday, 8 February 1663 | Preseren's Day |
| 4 | Sunday, 25 March 1663 | Easter |
| 5 | Monday, 26 March 1663 | Easter Monday |
| 6 | Friday, 27 April 1663 | Resistance Day |
| 7 | Tuesday, 1 May 1663 | May Day |
| 8 | Wednesday, 2 May 1663 | May Day Holiday |
| 9 | Sunday, 13 May 1663 | Whitsunday |
| 10 | Monday, 25 June 1663 | Statehood Day |
| 11 | Wednesday, 15 August 1663 | Assumption Day |
| 12 | Wednesday, 31 October 1663 | Reformation Day |
| 13 | Thursday, 1 November 1663 | All Saints' Day |
| 14 | Tuesday, 25 December 1663 | Christmas Day |
| 15 | Wednesday, 26 December 1663 | Independence and Unity Day |