Day Date Month Holiday
Thursday 13 Apr Maundy Thursday
Friday 14 Apr Good Friday
Monday 17 Apr Easter Monday
Thursday 20 Apr First Day of Summer OBS
Monday 01 May Labour Day
Thursday 25 May Ascension Day
Monday 05 Jun Whitmonday
Monday 07 Aug Bank Holiday
Monday 25 Dec Christmas Day
Tuesday 26 Dec Boxing Day
Source: http://www.nasdaqomxnordic.com/tradinghours