Day of the week calculator
Find out which day of the week any date in history or the future falls on.
About this calculator
Choose a date and the calculator shows the day of the week, the day of the year, whether it is a leap year, and how far it is from today.
It uses the Gregorian calendar, which is the calendar in use almost everywhere today.
Measurements and terms explained
- Day of the year
- The count of the day within the year, from 1 on 1 January to 365 or 366.
- Leap year
- A year divisible by 4, except century years not divisible by 400. It has 366 days.
Common questions
What day was I born?
Enter your date of birth and the day is shown at the top.
Do dates before 1752 work?
They use the Gregorian calendar extended backwards, which differs from the Julian dates in use at the time in some countries.
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