Public holidays
1640, Serbia
| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, 1 January 1640 | New Year's Day |
| 2 | Monday, 2 January 1640 | New Year's Holiday |
| 3 | Saturday, 7 January 1640 | Orthodox Christmas Day |
| 4 | Wednesday, 15 February 1640 | National Day |
| 5 | Thursday, 16 February 1640 | National Day Holiday |
| 6 | Tuesday, 1 May 1640 | May Day |
| 7 | Wednesday, 2 May 1640 | May Day Holiday |
| 8 | Sunday, 11 November 1640 | Armistice Day |