Sentence Computation, Jail Credit and Earned Time
Under 18 U.S.C. 3585 a sentence commences on the date the person is received into custody awaiting transportation to or arriving at the designated facility. Prior custody credit is given for time spent in official detention before the sentence commenced, as a result of the offense or of related conduct, but only where that time has not been credited against another sentence. Good conduct time under 18 U.S.C. 3624(b) and earned time credits then reduce the time actually served.










