9138. Computation of Time

(a) Calendar Day

In the Rule 9000 Series, "day" means calendar day.

(b) Formula

In computing any period of time, the day of the act, event, or default from which the period of time designated in the Code begins to run shall not be included. The last day of the period so computed shall be included, unless it is a Saturday, Sunday, or Federal holiday, in which event the period runs until the end of the next day that is not a Saturday, Sunday, or Federal holiday. Intermediate Saturdays, Sundays, and Federal holidays shall be excluded from the computation when the period prescribed is ten days or less, not including any additional time for service by mail allowed by paragraph (c).

(c) Additional Time For Service by Mail

If service is made by U.S. Postal Service first class, certified, or registered mail, three days shall be added to the prescribed period for response.