| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, 1 January 1820 | New Year's Day |
| 2 | Monday, 3 January 1820 | New Year's Day |
| 3 | Friday, 7 January 1820 | Orthodox Christmas Day |
| 4 | Wednesday, 8 March 1820 | International Women's Day |
| 5 | Monday, 10 April 1820 | Orthodox Easter |
| 6 | Tuesday, 11 April 1820 | Orthodox Easter |
| 7 | Monday, 1 May 1820 | Workers' Day |
| 8 | Tuesday, 9 May 1820 | Memorial Day |
| 9 | Monday, 29 May 1820 | Orthodox Pentecost |
| 10 | Tuesday, 30 May 1820 | Orthodox Pentecost |
| 11 | Wednesday, 28 June 1820 | Constitution Day |
| 12 | Thursday, 24 August 1820 | Independence Day |