Example
4 July 2026 falls on a Saturday.
The seven weekdays cycle continuously; leap years insert 29 February and shift following weekdays by one extra day.
Use this calculator to find which day of the week a calendar date falls on. Enter a Date and read the weekday name.
—
Pick a date to see its weekday.
What is a weekday calculator?
A weekday calculator answers “What day of the week is this date?” — for birthdays, historical events, scheduling, and planning.
How it works
Enter any calendar date. The tool maps it to one of the seven weekday names using your browser’s date handling. No network request is required.
Tips
- Historical and future dates are fine as long as the browser accepts the year.
- Pair with ISO week number for planning by week-of-year.