2 U.S. Code § 394 - Computation of time  (a) Method of computing
time In computing any period of time prescribed or allowed by
this chapter or by the rules or any order of the committee, the
day of the act, event, or default after which the designated
period of time begins to run shall not be included. The last day
of the period so computed shall be included, unless it is a
Saturday, a Sunday, or a legal holiday, in which event the
period shall run until the end of the next day which is neither
a Saturday, a Sunday, nor a legal holiday. When the period of
time prescribed or allowed is less than seven days, intermediate
Saturdays, Sundays, and legal holidays shall be excluded in the
computation. For the purposes of this chapter, “legal holiday”
shall mean New Year’s Day, Washington’s Birthday, Memorial Day,
Independence Day, Labor Day, Veterans Day, Thanksgiving Day,
Christmas Day, and any other day appointed as a holiday by the
President or the Congress of the United States. (b) Service by
mail Whenever a par