2025 Holiday Schedule Opm Calendar. With that in mind, here are the dates of the official federal holidays in the united states for 2025, according to the office of personnel management (opm): 6103(b).) if a holiday falls on a sunday\, f or most federal employees\, the following monday will be treated as a hol iday for pay and leave purposes.

6103) establishes the following public holidays for federal employees. For convenience, the number of days left to a holiday date is also provided.