Public holidays
1421, Serbia
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1421 | New Year's Day |
| 2 | Tuesday, 2 January 1421 | New Year's Holiday |
| 3 | Sunday, 7 January 1421 | Orthodox Christmas Day |
| 4 | Monday, 8 January 1421 | Orthodox Christmas Holiday |
| 5 | Thursday, 15 February 1421 | National Day |
| 6 | Friday, 16 February 1421 | National Day Holiday |
| 7 | Tuesday, 1 May 1421 | May Day |
| 8 | Wednesday, 2 May 1421 | May Day Holiday |
| 9 | Sunday, 11 November 1421 | Armistice Day |