Determination of the day of the week possible to do all the calculations in one's head with a little practice). None of the methods given here perform range checks, so unreasonable dates will produce erroneous results. Every seventh day in a month has the same name as the previous: "Corresponding months" are those months within the calendar year that start on the same day of the week. For example, September and December correspond, because September 1 falls on the same day as December 1. Months can only correspond if the number of days between their first days is divisible by 7, or in other words, if their
Family Day (Canada) it be made a federal holiday. Not being a federal holiday, federally regulated workplaces (such as the post office) work on Family Day regardless of the day's status in the respective provinces. Family Day (Canada) In parts of Canada, Family Day () is a statutory holiday occurring on a Monday in February. In the provinces of British Columbia (BC), Alberta, Manitoba, Ontario, New Brunswick, Nova Scotia, Prince Edward Island (PEI) and Saskatchewan, it is observed on the third Monday of February; in the provinces of Manitoba, Nova Scotia and Prince Edward Island, the holiday is instead termed Louis Riel Day,