Duration of sentences etc.
13Where any sentence of the court is limited by reference to a period of time, that period shall begin to run from the beginning of the day on which the sentence is passed, except in a case where it is suspended under paragraph 20(4) below.
14Where the court passes any such sentence and the period of any previous sentence passed on the same person has not expired, the court may order that the new sentence shall begin to run from the expiry of the period.