564.This section provides that a sentence passed by the Court Martial or the SCC takes effect from the beginning of the day on which it is passed, unless some other provision enables the court to direct otherwise. The rule does not apply to suspended sentences (which take effect only when subsequently activated) or to sentences passed by the Court Martial on appeal from the SCC (which under section 287(2) take effect from the beginning of the day on which the SCC passed sentence, unless the Court Martial otherwise directs).