Substitute or moved holidays are reflected above only when officially confirmed by the country’s government sources. Whit Sunday / Pentecost is a National Holiday in the Following EU countries: Denmark, Estonia, Finland, Germany, Latvia, Netherlands, Poland, Slovenia, & Sweden. Whit Monday / Pentecost Monday is a National Holiday in the Following EU countries: Austria, Belgium, Denmark, France, Hungary, Luxembourg, & Netherlands. Corpus Christi is a National Holiday in the Following EU countries: Austria, Croatia, Poland & Portugal. In Germany it is a state holiday in 6 of 16 German States.