How Often Does a Calendar Repeat?

A calendar "repeats" when a later year has exactly the same day-of-week layout as an earlier one — meaning every date falls on the same weekday in both years.

What has to match

Two conditions both need to hold: the years must both be leap years or both be common (non-leap) years, and they must start on the same day of the week. Because of this, non-leap years typically repeat every 6, 11 or 28 years, and leap years repeat on a related but slightly different cycle.

Try it

Use the Calendar Repeat Finder to find the next year that matches any given year.