Public holidays
1820, Serbia
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, 1 January 1820 | New Year's Day |
| 2 | Sunday, 2 January 1820 | New Year's Holiday |
| 3 | Friday, 7 January 1820 | Orthodox Christmas Day |
| 4 | Tuesday, 15 February 1820 | National Day |
| 5 | Wednesday, 16 February 1820 | National Day Holiday |
| 6 | Monday, 1 May 1820 | May Day |
| 7 | Tuesday, 2 May 1820 | May Day Holiday |
| 8 | Saturday, 11 November 1820 | Armistice Day |