Frederiksborg Castle is open every day all year round. 

1 Aril-31 October at 10-17.0
1 November-31 March at 11-15.00

Prices:

Adult DKK 75.-

Child (6-15 years)DKK 20.-

Senior/Student/group (+10.-) DKK 60.-

Family ticket ( 2 adults + 3 children) DKK 150.-