There are some public holidays in Belgium, and here you can find them.
January 1st – New Year
May 1st – Workers Day
July 11th – only in Flamand areas
July 21 – Independence day
August 15th – Mary’s assumption to heaven
November 1st – All Saints Day
November 11 – Truce day
December 25th/26th – Christmas
In addition to these comes Easter and Pentecost