Sunday 01 Jan New Year's Day
Sunday 01 Apr Palm Sunday
Thursday 05 Apr Maundy Thursday
Friday 06 Apr Good Friday
Sunday 08 Apr Easter Sunday
Monday 09 Apr Easter Monday
Tuesday 01 May Labour Day
Thursday 17 May Constitution Day / Ascension Day
Sunday 27 May Pentecost
Monday 28 May Whit Monday
Tuesday 25 Dec Christmas Day
Wednesday 26 Dec St Stephen's Day
Source: http://www.visitnorway.com/en/About-Norway/Facts-about-Norway/Norwegian-public-holidays/