Day of the Week Finder
What day of the week was it?
Enter any past or future date to find out which day of the week it falls on — perfect for birthdays, anniversaries, or historical dates.
Please pick a date.
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Weekend or weekday
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Days from today
How it works
- Your browser's built-in calendar converts the date to a weekday using standard Gregorian rules.
- Works for any date, past or future — great for birthdays, anniversaries, or historical events.
- We also tell you whether it falls on a weekend and how far it is from today.
Frequently asked questions
Does it work for very old dates?
Yes — Gregorian calendar rules are applied consistently for earlier dates.
What about leap years?
Leap years are handled automatically; 29 February only exists in leap years.
Is the date stored anywhere?
No — everything runs in your browser and nothing leaves your device.