How it works
Each line is one stretch of time: a shift, a job or a gig. The calculator takes end minus start, adds 24 hours when the end is earlier than the start (you worked past midnight), subtracts the unpaid break, and adds the lines up. Totals show as hours:minutes and decimal hours.
For a full week with days, lunch punches and overtime, use the time card calculator. For a fixed daily schedule, the work hours calculator gives weekly, monthly and yearly hours.
Adding durations rather than start and end times? Use the time duration calculator. To see what a schedule adds up to over a year, try work hours in a year.
Overnight shifts on the two nights a year when clocks change are an hour shorter (March) or longer (November) than the clock times suggest; federal rules pay the hours actually worked, so adjust that one shift by hand.
Formula and examples checked . Found a problem? Tell us.
Questions
How many hours is 9 to 5?
9:00 AM to 5:00 PM is 8 hours. With an unpaid 30-minute lunch it is 7 hours 30 minutes (7.5 hours) of paid time.
How many hours is 7 AM to 3:30 PM?
8 hours 30 minutes, or 8 hours with a 30-minute unpaid lunch.
How do I calculate hours for a night shift?
If the shift ends after midnight, add 24 hours to the end time before subtracting. 10:00 PM to 6:00 AM is (6 + 24) - 22 = 8 hours. The calculator does this for you when the end time is earlier than the start.