| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 3 January 1605 | New Year's Day (substitute day) |
| 2 | Thursday, 17 March 1605 | St. Patrick's Day |
| 3 | Friday, 8 April 1605 | Good Friday |
| 4 | Monday, 11 April 1605 | Easter Monday |
| 5 | Monday, 2 May 1605 | Early May Bank Holiday |
| 6 | Monday, 30 May 1605 | Spring Bank Holiday |
| 7 | Tuesday, 12 July 1605 | Orangemen's Day |
| 8 | Monday, 29 August 1605 | Late Summer Bank Holiday |
| 9 | Monday, 26 December 1605 | Christmas Day (substitute day) |
| 10 | Tuesday, 27 December 1605 | Boxing Day (substitute day) |