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Weekday Calculator
Find the day of the week for any date, plus its day of year, ISO week number and weekend status.
Find the weekday for any date
Also see the date's day-of-year and ISO week number.
Weekday updates automatically when you change the date.
What day of the week was a date?
Select a date and the calculator will show whether it falls on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday or Sunday. It also provides the day number within the year and ISO week number for extra context.
This can help with historical schedules, anniversaries, project records, recurring-event planning and simple calendar questions.