Article 57 Calculation of time
(1)
Where a period of time for doing any act is specified by these Rules or by a direction of the Tribunal, that period is to be calculated—
(a)
excluding the day on which the period begins; and
(b)
where the period is 10 days or less, excluding any day which is not a business day (unless the period is expressed as a period of calendar days).
(2)
Where the time specified by these Rules or by a direction of the Tribunal for doing any act ends on a day which is not a business day, that act is done in time if it is done on the next business day.