In computing any period of time fixed by rule or judicial order, the day of the act or event from which the designated period 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, Sunday or legal holiday, in which event the period runs until the end of the next day which is neither a Saturday, Sunday or legal holiday. In computing a period of time of less than seven days, Saturday, Sunday and legal holidays shall be excluded.
N.J. Admin. Code § 1:1-1.4