Public holidays
1504, Serbia
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1504 | New Year's Day |
| 2 | Saturday, 2 January 1504 | New Year's Holiday |
| 3 | Sunday, 1 May 1504 | May Day |
| 4 | Monday, 2 May 1504 | May Day Holiday |
| Tuesday, 3 May 1504 | May Day (observance) |