In computing any period of time prescribed or allowed by these rules or by any applicable statute, the day of the act or event after which the designated period of time begins to run is not included. The last day of the period is included, unless it is a Saturday, a Sunday, or a legal holiday, in which event the period runs until the end of the next day which is not a Saturday, a Sunday, or a legal holiday.
12-180 C.M.R. ch. 10, § 6