(1) If a period commences on the occurrence of an event or at a point in time falling in the course of a day, then the day on which the event or point in time occurs is not included in the calculation of the period.
(2) If the beginning of a day is the determining point in time for the commencement of a period, then this day is included in the calculation of the period. The same applies to the date of birth in computing the age of a person.