Except as otherwise provided by the following provisions of this Part of this Act, and by F2section 11(2) of the M1Courts-Martial (Appeals) Act 1968 (which empowers the court in certain cases to direct that a sentence shall begin to run from the day upon which an application for leave to appeal is dismissed), any term of imprisonment or detention under a sentence awarded F3by a court-martial shall begin to run from the beginning of the day on which the sentence is awarded.

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