s 121 Commencement of sentences
121.—(1) The term of imprisonment or special detention in a disciplinary barrack or detention to which a person subject to military law is sentenced by a subordinate military court or a term of detention awarded by a disciplinary officer whether the person is already undergoing sentence or not takes effect from the date on which it was passed unless the court or the disciplinary officer passing the sentence otherwise directs. (2) A sentence of imprisonment or special detention in a disciplinary barrack or detention passed by a subordinate military court or sentence of detention passed by a disciplinary officer or when there has been an appeal, by the Military Court of Appeal, which is suspended under section 120, must not start to run until the beginning of the date on which the suspension is cancelled.