[Code of Federal Regulations] [Title 45, Volume 1] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 45CFR16.19] [Page 79] TITLE 45--PUBLIC WELFARE AND HUMAN SERVICES PART 16_PROCEDURES OF THE DEPARTMENTAL GRANT APPEALS BOARD--Table of Contents Sec. 16.19 How to calculate deadlines. In counting days, include Saturdays, Sundays, and holidays; but if a due date would fall on a Saturday, Sunday or Federal holiday, then the due date is the next Federal working day.