Sweden, the most important day is Christmas Eve. A special Christmas meal is eaten on Christmas Eve - ham (pork), herring fish, and brown beans - and this is the time when families give presents to each other. Many people attend a church meeting early on Christmas Day.
Christmas is called Jul and it actually follows their heathen midwinter celebration. There is no Jul without the Julklap (the Christmas knocking). People go around the house mysteriously knocking on the doors and presents are quickly shoved into the room. Then every member of the family has to find the right present.