Weekday Finder
Look up the day of the week for any date, in multiple languages.
Pick any date past or future and see what day of the week it falls on. The result is shown in English, Spanish, French and Chinese using your browser's Intl APIs.
Common use cases
- Confirm the day of the week for a historical event or birthday
- Plan future dates without a paper calendar
- Translate weekdays for multilingual scheduling
- Settle bets about "what day was it?"
Frequently asked questions
How far back or forward can it go?▾
Anywhere your browser's Date can represent — roughly ±271,820 years from 1970.
Is it accurate for historical dates?▾
It uses the proleptic Gregorian calendar, so dates before the Gregorian switchover (1582 in Catholic countries, later elsewhere) won't match local historical calendars.
Why these four languages?▾
We picked widely-spoken languages with distinct weekday names; you can copy-and-paste the date into any locale-aware tool for others.
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