What day is july 21, 2000?
Every calendar date falls on one of the seven days of the week, and that day can be worked out for any date in the past or future. This perpetual calendar calculator tells you which day of the week any date was or will be — your birth, a birthday, or a famous historical event. Just enter a past or future date and it will tell you the weekday.
What day is it? Calculator
Similar weekday calculations: What day is july 21, 2000
Frequently asked questions
How do I find what day of the week a date was?
Enter any date and the calculator returns the weekday, using the rules of the Gregorian calendar for past and future dates alike.
What day of the week was I born?
Enter your date of birth and the calculator instantly shows the weekday you were born on.
Can the calculator handle future dates?
Yes. It works as a perpetual calendar, so you can find the weekday of any future date, such as a birthday or anniversary.
How is the day of the week calculated?
The calculator applies the Gregorian calendar rules, including leap years, to map any date to one of the seven weekdays. Algorithms such as the congruence of Zeller do the same by hand.
Does it account for leap years?
Yes. Leap years are fully accounted for, so weekday results stay correct across century and leap-year boundaries.