Day of the Week Calculator — Find Any Weekday

A free day of the week calculator that tells you the weekday for any date. Pick a calendar date and it shows whether it was a Monday, Tuesday, or any other day — perfect for checking past birthdays, planning events, or settling historical date questions.

Date

Pick a date to see which day of the week it falls on.

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How it works

What this calculator does

This tool takes any calendar date and tells you exactly which day of the week it falls on, from Monday through Sunday. Whether the date is in the distant past or far in the future, the result appears instantly.

It is handy for confirming the weekday of a birthday, a historical event, a contract deadline, or a planned trip without flipping through a calendar.

How the weekday is determined

Every date in the Gregorian calendar maps to a fixed weekday following a repeating seven-day cycle. The calculator applies the standard calendar rules, including leap years, so the answer is always accurate.

Because the weekday name is shown in your own language by the browser, the result matches your regional settings automatically.

Frequently asked questions

›Can I check dates far in the past?

Yes. The calculator handles historical dates correctly using standard Gregorian calendar rules.

›Does it work for future dates?

Absolutely. Pick any future date and it will show the weekday it will fall on.

›Are leap years handled?

Yes. Leap years are accounted for automatically, so February 29 dates are correct.

›In what language are the weekday names shown?

Weekday names follow your browser and device language settings, so they appear in your own language.

›Is this tool free to use?

Yes, it is completely free and requires no sign-up. Use it as many times as you like.

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