St. Clair County Library System recently issued the following announcement.
Monday, December 23 - 9-5 branches, 8:30-5 Port Huron/Main
Tuesday, December 24 - all library branches closed
Wednesday, December 25 - all library branches close
Monday, December 30 - 9-5 branches, 8:30-5 Port Huron/Main
Tuesday, December 31 - all library branches closed
Wednesday, January 1 - all library branches close
Original source can be found here.