Hours Calculator
Enter the times your shift starts and ends, and you'll see the hours you worked, shown in hours and minutes plus a decimal.
How the hours calculator works
First it takes the end time minus the start time, then it removes the unpaid break. When the end time is earlier than the start, the shift ran past midnight, so 10pm to 6:30am with a 30-minute break comes to 8 hours. Type 7 or 7:30, and also 730a or 1930. A plain 4:30 after a start in the morning is taken to mean the afternoon.
Hours calculator with a lunch break
Only unpaid time is subtracted. Federal rules say a rest break of about 5 to 20 minutes counts as hours worked, but a meal break with no duties, usually 30 minutes or more, isn't (29 CFR 785.18 and 785.19). Put the lunch in the break box and don't include the short breaks.
Common shifts
Before lunch, a 7:30 to 4:30 shift comes to 9 hours. The 7:30 to 4:30 hours page gives the answer for a 30-minute lunch and for a 1-hour lunch, plus a table of other common shifts.
Looking for the whole week? Every day is added up in the time card calculator, which also handles overtime and pay.
Hours calculator FAQ
How do I calculate how many hours I worked?
Measure the time from the start to the end, then subtract any unpaid break. From 8am to 4:30pm is 8 hours 30 minutes, and after a 30-minute lunch, 8 hours are left.
Is 9 to 5 eight hours?
Yes, if you take no break. With a 30-minute unpaid lunch, the total drops to 7 hours 30 minutes, or 7.50 hours; after an hour it's 7 hours.
How do I turn the hours into decimal hours?
Your minutes divided by 60 and added to the hour count give the decimal: 8 hours 30 minutes equals 8.50. Both forms show in the result above, and any time can be converted either way with the decimal hours calculator.