2009
New Year's Day: 1 January
Maundy Thursday: 9 April
Good Friday: 10 April
Easter Sunday: 12 April
Easter Monday: 13 April
Common Prayer Day: 8 May
Ascension Day: 21 May
Whit Sunday: 31 May
Whit Monday: 1 June 
Christmas Day: 25 December
Boxing Day: 26 December 

2010
New Year's Day: 1 January
Maundy Thursday: 1 April
Good Friday: 2 April
Easter Sunday: 4 April
Easter Monday: 5 April
Common Prayer Day: 30 April
Ascension Day: 13 May
Whit Sunday: 23 May
Whit Monday: 24 May
Christmas Day: 25 December
Boxing Day: 26 December

2011
New Year's Day: 1 January
Maundy Thursday: 21 April
Good Friday: 22 April
Easter Sunday: 24 April
Easter Monday: 25 April
Common Prayer Day: 20 May
Ascension Day: 2 June
Whit Sunday: 12 June
Whit Monday: 13 June
Christmas Day: 25 December
Boxing Day: 26 December

In Denmark many shops, banks, restaurants, and museums close on Constitution Day, Christmas Eve, Christmas Day, and New Year's Day.

Click here for information on school holidays in Denmark.