February 2009

February 2009 was the second month of that year. It began on a Sunday and ended after 28 days on a Saturday.

Inasmuch as the month of February in non-leap years is exactly four weeks long, in years when it commences on Sunday, all western calendars designating Sunday as the first day of the week present the month in four equal seven-day rows. February is the only such calendar month where this may occur, and February 2009 was one instance. A so-called "rectangular" February had previously occurred in 1998.

Although February 2004 also started on Sunday, it was not a "rectangular" February, because the 29th made one day of the fifth row of the month.

Also notable is the presence of Friday the 13th on the calendar for February 2009. During any month that commences on a Sunday, such as November 2009, the thirteenth falls on a Friday. Thus in any year with a "rectangular" February, Friday the 13th will also occur in March, giving two Friday-the-13ths in a row. The next instance of this appears on the calendar for the year 2015.