Public holidays
1663, Österreich, Niederösterreich (private Unternehmen)
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1663 | Neujahrstag |
| 2 | Saturday, 6 January 1663 | Heilige Drei Könige |
| 3 | Monday, 26 March 1663 | Ostermontag |
| 4 | Tuesday, 1 May 1663 | Staatsfeiertag |
| 5 | Thursday, 3 May 1663 | Christi Himmelfahrt |
| 6 | Monday, 14 May 1663 | Pfingstmontag |
| 7 | Thursday, 24 May 1663 | Fronleichnam |
| 8 | Wednesday, 15 August 1663 | Mariä Himmelfahrt |
| 9 | Friday, 26 October 1663 | Nationalfeiertag |
| 10 | Thursday, 1 November 1663 | Allerheiligen |
| 11 | Saturday, 8 December 1663 | Mariä Empfängnis |
| 12 | Tuesday, 25 December 1663 | Weihnachten |
| 13 | Wednesday, 26 December 1663 | Stefanitag |