Section 91, The Arbitration Act, 2022

(1) The parties may agree on the method of reckoningperiods of time for the purposes of any provision agreed by them or any provision of this Act having effect in default of such agreement. (2) Where or to the extent there is no such agreement, periods of time shall be reckoned as follows- (a) where the act is required to be done within a specified period after or from a specified date, the period shall begin immediately after that date; (b) where the act is required to be done within a specified number of clear days after a specified date, at least that number of days must intervene between the day on which the act is done and that date; (c) Where the period is a period of 7 days or less which would include a Sunday or a public holiday in the place where anything which has to be done within the period fails to be done, that day shall be excluded.