Public holidays
1664, United Kingdom, Ireland
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, 1 January 1664 | New Year's Day |
| 2 | Monday, 17 March 1664 | St. Patrick's Day |
| 3 | Monday, 14 April 1664 | Easter Monday |
| 4 | Monday, 5 May 1664 | Early May Bank Holiday |
| 5 | Monday, 2 June 1664 | June Bank Holiday |
| 6 | Monday, 4 August 1664 | Summer Bank Holiday |
| 7 | Monday, 27 October 1664 | October Bank Holiday |
| 8 | Thursday, 25 December 1664 | Christmas Day |
| 9 | Friday, 26 December 1664 | St. Stephen's Day |