In computing any period of time prescribed by these rules of procedure or otherwise specified in the course of the hearing by the presiding officer or otherwise, the day of the act or event after which the designated period of time begins to run is not to be included. The last day of the period so computed is to be included, unless it is a Saturday, a Sunday, or a holiday. When the period of time prescribed or specified is less than 7 days, intermediate Saturdays, Sundays and holidays shall be excluded in the computation.
For the purpose of this section, legal holidays shall include days on which the Chief Justice of the Supreme Judicial Court specifically orders the Clerk's office closed.
01-001 C.M.R. ch. 1, § 22