39.—(1) A period expressed in days, weeks or months after or from the happening of an event or the doing of any act or thing shall exclude the day on which the event happens or the act or thing is done.
(2) A period expressed in weeks or months shall end with the expiry of whichever day in the last week or month is the same day of the week or the month as the day on which the event or the act or thing after or from which the period is to be calculated happens or is done.
(3) If, in a period expressed in months, the day on which it should expire does not occur in the last month, the period shall end with the expiry of the last day of that month.
(4) Where the time specified by the Board or these Regulations for doing any act expires on a Saturday, Sunday or public holiday, the act is in time if done on the next following working day.