Republic of Ireland
January 1st: New Year’s day
March 17th: St.Patrick’s day
April 5th (2010) | April 25th (2011): Easter Monday
First Monday in May: Bank holiday
First Monday in June: Bank holiday
First Monday in August: Bank holiday
Last Monday in October: Bank holiday
December 25th: Christmas day
December 26th: St.Stephen’s day

Northern Ireland
January 1st: New Year’s day
March 17th: St.Patrick’s day
April 2nd (2010) | April 22nd (2011): Good Friday
April 5th (2010) | April 25th (2011): Easter Monday
First Monday in May: May bank holiday
Last Monday in May: Spring bank holiday
July 12th: Battle of the Boyne
Last Monday in August: Summer bank holiday
December 25th: Christmas day
December 26th: Boxing day