Section 746 — Criminal Code: Time spent in custody

In calculating the period of imprisonment served for the purposes of section 745, 745.1, 745.4, 745.5 or 745.6, there shall be included any time spent in custody between in the case of a sentence of imprisonment for life after July 25, 1976, the day on which the person was arrested and taken into custody in respect of the offence for which that person was sentenced to imprisonment for life and the day the sentence was imposed; or in the case of a sentence of death that has been or is deemed to have been commuted to a sentence of imprisonment for life, the day on which the person was arrested and taken into custody in respect of the offence for which that person was sentenced to death and the day the sentence was commuted or deemed to have been commuted to a sentence of imprisonment for life.