Weekday

Day of the Week Calculator

Find out what day of the week any date falls on with this free weekday calculator for past, present, and future dates.

Day of Week

Select dates and settings to calculate instantly.

Select Date

Date calculations account for actual calendar length, including leap years and varying month lengths where applicable.

Ready to calculate

Select your dates and inputs to calculate durations, weekdays, future dates, countdowns, and more.

What Is a Day of the Week Calculator?

A day of the week calculator tells you the weekday for a selected date, such as Monday, Tuesday, or Friday. It is useful for birthdays, anniversaries, historical dates, and scheduling.

How the Day of the Week Is Determined

Weekday Lookup

Use calendar arithmetic to map a specific date to a weekday

Examples

Birth Date Lookup

Input: Enter a birth date

Result: Shows the weekday for that date

Future Event Planning

Input: Enter a future event date

Result: Shows whether it falls on Monday, Tuesday, and so on

Common Uses for a Day of the Week Calculator

People use weekday calculators to find the day they were born, verify appointment days, check historical events, and plan future schedules.

Why Knowing the Weekday Matters

Knowing the weekday for a date is helpful for scheduling meetings, planning events, checking travel dates, and verifying memorable past dates.

Past and Future Date Lookup

A day of the week calculator works for both past and future dates, making it useful for historical research as well as planning ahead.

Frequently Asked Questions

Enter the date into a day of the week calculator and it will determine the corresponding weekday.

Yes. Enter your birth date to find the weekday you were born on.

Yes. It works for both past and future dates.

It is useful for planning events, checking schedules, verifying historical dates, and answering questions like what day a birthday or anniversary falls on.

Yes. It helps you check whether a date falls on a weekend or weekday before scheduling an event or appointment.