Same calendar year finder
Enter a year to see the previous and next years where every date lands on the same weekday, plus a list of matches within 100 years either side.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter year.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Two years match when they start on the same weekday and are both leap years or both common years. We scan the years before and after until that holds.
Example
Inputs: Year = 2,026. Result: Next year with the same calendar: 2037; Previous year with the same calendar: 2015; Year type: Common year starting on Thursday.
Limits and caveats
- The match covers weekdays only; movable feasts and Hijri holidays fall on different dates each year.
Questions about this tool
Can I use a 2015 calendar in 2026?
Yes. Both are common years starting on Thursday, so every date falls on the same weekday.
How often does a calendar repeat?
A common year usually repeats after 6 or 11 years and a leap year after 28, with longer gaps near a century year such as 2100.
Why is starting on the same weekday not enough?
A leap year has 29 February, which shifts every later date by one weekday compared with a common year.