The McKinney Public Library System will observe these Holiday hours:
- Christmas: Closed Sunday, December 24 to Tuesday, December 26
- Holiday hours: Wednesday, December 27 to Thursday, December 28 - close at 6 p.m.
- Regular hours: Friday 12/29 to Sunday 12/31
- New Year's Day 2018: Closed Monday, January 1
- Holiday hours: Tuesday, January 2 to Thursday, January 4 - close at 6 p.m.
- Regular hours resume Friday, January 5