39 C.F.R. § 952.31 Computation of time.
Title 39 - Postal Service
A designated period of time under these rules excludes the day the period begins, and includes the last day of the period unless the last day is a Saturday, Sunday, or legal holiday, in which event the period runs until the close of business on the next business day.
Title 39: Postal Service
PART 952—RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO FALSE REPRESENTATION AND LOTTERY ORDERS
§ 952.31 Computation of time.