Public holidays
1820, United Kingdom, Ireland
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 3 January 1820 | New Year's Day (substitute day) |
| 2 | Friday, 17 March 1820 | St. Patrick's Day |
| 3 | Monday, 3 April 1820 | Easter Monday |
| 4 | Monday, 1 May 1820 | Early May Bank Holiday |
| 5 | Monday, 5 June 1820 | June Bank Holiday |
| 6 | Monday, 7 August 1820 | Summer Bank Holiday |
| 7 | Monday, 30 October 1820 | October Bank Holiday |
| 8 | Monday, 25 December 1820 | Christmas Day |
| 9 | Tuesday, 26 December 1820 | St. Stephen's Day |