Any period of time prescribed in this Regulation shall be calculated as follows:

(a) where a period expressed in days, weeks or months is to be calculated from the time an event occurs or an action takes place, the day on which that event occurs or that action takes place shall not itself be counted as falling within the period in question;

(b) 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 falls on the same date of the month, respectively, as the day on which the event or action from which the period is to be calculated occurred or took place; where, in a period expressed in months, the day on which it should expire does not occur in the last month of the period, the period shall end at midnight of the last day of that last month;

(c) time limits shall include Saturdays, Sundays and official holidays in the Member State concerned; where a time limit ends on a Saturday, Sunday or official holiday, the next working day shall be counted as the last day of the time limit.