Day of the Week Calculator
Find which day of the week any date falls on — past or future.
Find which day of the week any date falls on — past or future. Works for birthdays ("what day was I born?"), historical dates and planning. Uses real calendar dates, so leap years are handled correctly. Runs in your browser.
Enter any date to find out which day of the week it falls on, whether it's in the past or the future. It also shows the day of the year and whether it's a weekday or weekend. Handy for answering 'what day was I born?', checking historical dates, and planning future events. Uses real calendar dates, so leap years are correct. Runs in your browser.
How to use the Day of the Week Calculator
- Pick a date (or tap Today).
- Read the day of the week it falls on.
- See the day of the year and weekday/weekend.
Frequently asked questions
What day of the week was I born?
Enter your date of birth and the calculator shows the exact weekday — for example, 1 January 2000 was a Saturday.
Does it work for future and historical dates?
Yes. It uses real calendar dates, so it correctly handles past and future dates and leap years.