N.D. Cent. Code § 1-01-33: Year - Month - Week - Definition - Fraction of day disregarded

The word "week" means seven consecutive days and the word "month" a calendar month. The word "year" means twelve consecutive months. Fractions of a year are to be computed by the number of months; thus, half a year is six months. Fractions of a day are to be disregarded in computations which include more than one day and involve no questions of priority.