calculate if a date is in a dutch school vacation

Question

HI,

 

I was wundering, is there a class, module, script or whatever, that i could use to check if a specific date is in a holiday. ( by holiday i mean not X-mas or eachter, but xmas vacation or summer vacation etc. 0. I already finded it for celibration days like x-mas new years eve etc but now i need it olso for the real school holidays. I already made an excel file, that contains all the real holidays. However that still needs to be updated every year. SO i thought maybe there is a way to calculate or download it every year.

 

thnx