Day of the week calculator
Find which weekday a date falls on.
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The tool uses the Gregorian calendar extended backward for years 1 through 9,999. It does not account for when individual countries adopted that calendar, so use care with historical dates. Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.
Your result
How to use Day of the week calculator
- Enter the values you want to calculate and choose the relevant units or settings.
- The result updates as you type. Adjust the available settings if needed.
- Review the result, then use Copy result or a download link when available.
Useful next steps
How to use it
Choose a calendar date to see its weekday. The result is based on the entered date, without converting it through your device's time zone.
A worked example
January 1, 2000 was a Saturday. February 29, 2024 was a Thursday.
What to know
The tool uses the Gregorian calendar extended backward for years 1 through 9,999. It does not account for when individual countries adopted that calendar, so use care with historical dates.