DATE TOOLS

Calendar Repeat Finder

Find the years whose calendar matches a given year exactly.

Enter a year above.

How to use the Calendar Repeat Finder

Enter a year.
The tool lists the previous and next years whose calendars are identical — same starting weekday and same leap-year status — so every date falls on the same day of the week.

How often does a calendar repeat?

A common year usually repeats after 6 or 11 years (sometimes 12 across a skipped century leap year), while a leap year repeats only every 28 years.

Can I reuse an old wall calendar?

Yes, if the years match — though public holidays that depend on Easter or the lunar calendar will usually fall on different dates.

Check whether any year is a leap year, and find the next and previous leap years.

Find which day of the week any date falls on.

Find the ISO week number for any date — or the dates of any week.