Work, time & dates
Practical calculators for schedules, working time and calendar arithmetic.
9tools
Work Hours Calculator
Calculate worked hours from start time, end time and unpaid break.
Time Card Calculator
Free weekly time card calculator for shifts and unpaid breaks.
Clock Out Calculator
Calculate the time you should clock out from start time, break and target hours.
Business Days Calculator
Count business days between two dates and optionally exclude US federal holidays.
Days Between Dates Calculator
Calculate the number of calendar days between two dates.
Working Days in a Year
Count working days in any selected date range.
Work Hours Calculator With Lunch Break
Calculate net work hours after an unpaid lunch break.
Overnight Shift Hours Calculator
Calculate hours for a shift that crosses midnight.
Weekly Hours Calculator
Calculate total hours across a five-day workweek.