Image : Antikamnia Chemical Company

There are only 14 possible ways to arrange a calendar: the year either has 365 days or 366, and it starts on one of the seven days of the week. That means calendars repeat: in 2019 you can use a calendar from 2013, which also had 365 days and started on a Tuesday.




Want to go even further back? Other calendar years that can work for 2019 include 2002, 1991, 1985, 1974, 1963, 1957, 1946, 1935, 1929, 1918, 1907, and 1901.

Or if you still have a 2018 calendar you’d love to use again, hang onto it until 2029.


Find a complete list of matching calendars for any year with Time and Date’s repeating calendar tool. And keep an eye out the next time you see vintage calendars at a flea market—one of them is bound to look perfect on your wall this year.