Calendar & Dates

Calendar & Date Tools

Count days, add or subtract dates, calculate business days, and build calendars.

Calendar & DatesDate Duration CalculatorCount calendar days between two dates.Calendar & DatesDate Add/Subtract CalculatorAdd or subtract days, weeks, months, or years from a date.Calendar & DatesBusiness Days CalculatorCount weekdays between two dates, excluding Saturdays and Sundays.Calendar & DatesWork Hours CalculatorEstimate total work hours from days, start time, end time, and breaks.Calendar & DatesTime Card CalculatorAdd several clock-in and clock-out entries into a weekly total.Calendar & DatesHoliday Countdown CalculatorCount down to common fixed-date holidays and annual events.Calendar & DatesHoliday CalendarShow a simple educational list of common fixed-date observances for a year.Calendar & DatesWeek Number CalculatorFind the ISO week number for a date.Calendar & DatesDate to Weekday CalculatorFind the weekday name for any selected date.Calendar & DatesLeap Year CalculatorCheck whether a year is a leap year and see the rule.Calendar & DatesQuarter CalculatorFind the calendar quarter, month range, and days remaining in the quarter.Calendar & DatesCalendar GeneratorGenerate a simple monthly calendar in the browser.Calendar & DatesAge CalculatorCalculate age from a birth date to today or another date.