DateTimeExtensions
Just a sample site of a possible usage of DateTimeExtensions nuget package.
Ísland (is-IS) change
Holidays
January 01 New Year
April 17 Palm Sunday
April 18 Good Friday
April 20 Easter
April 21 Easter Monday
May 01 May Day
May 29 Feast of the Ascension
June 05 Pentecost
June 09 Pentecost Monday
June 17 Republic's Day
August 01 Commerce's Day
December 25 Christmas
December 26 Christmas (2nd Day)