This is a list of public holidays in Luxembourg.
Public holidays
The National Holiday celebrates the birthday of the Grand Duke and used to be movable to coincide with the actual birthday of monarch. To avoid cold weather on the January 5 birthday of Grand Duke Jean (reigned 1964-2000), the Grand Duke's Official Birthday celebration was pinned since 1962 to Jean's name day on June 23, and was maintained under the reign of his successor Henri.
References
Public holidays in Luxembourg Wikipedia(Text) CC BY-SA