A common year is a calendar year with 365 days. It is a year that is not a leap year. This means a common year has 52 weeks and one day. So if a certain year started on a Monday, the following year will start on a Tuesday. Stated differently, a common year always begins and ends on the same day of the week (for example, in 2023, January 1 and December 31 fell on a Sunday). In common years, February has exactly four weeks, so March begins on the same day of the week. November also begins on this day. For example, if February 2023 began on a Wednesday, then March would begin on a Wednesday as well. November follows the same characteristic.