For section 451 (computation of time), there shall be substituted the following section—

“451 Computation of time.

(1)

If any period of time specified in any provision of this Part of this Act relating to appeals expires on a Saturday, Sunday or court holiday prescribed for the relevant court, the period shall be extended to expire on the next day which is not a Saturday, Sunday or such court holiday.

(2)

Where a judge against whose judgment an appeal is taken is temporarily absent from duty for any cause, the sheriff principal of the sheriffdom in which the court at which the judgment was pronounced is situated may extend any period specified in sections 447(1) and 448(2A) and (2D) of this Act for such period as he considers reasonable.

(3)

For the purposes of sections 444(1)(a) and 447(1) of this Act, summary proceedings shall be deemed to be finally determined on the day on which sentence is passed in open court; except that, where in relation to an appeal under section 442(1)(a)(i) or (b)(i) of this Act sentence is deferred under section 432 of this Act, they shall be deemed finally determined on the day on which sentence is first so deferred in open court.”.