Public holidays
1400, United Kingdom, Northern Ireland
| # | Date | Public holiday |
|---|---|---|
| 1 | Wednesday, 1 January 1400 | New Year's Day |
| 2 | Monday, 17 March 1400 | St. Patrick's Day |
| 3 | Friday, 18 April 1400 | Good Friday |
| 4 | Monday, 21 April 1400 | Easter Monday |
| 5 | Monday, 26 May 1400 | Spring Bank Holiday |
| 6 | Monday, 14 July 1400 | Orangemen's Day |
| 7 | Monday, 25 August 1400 | Late Summer Bank Holiday |
| 8 | Thursday, 25 December 1400 | Christmas Day |
| 9 | Friday, 26 December 1400 | Boxing Day |