Hours calculator
Hours worked are the end time minus the start time, minus unpaid breaks. 9:00 AM to 5:30 PM with a 30-minute lunch is 8 hours. To add times, add the minutes and carry every 60 to the hours: 8:45 + 7:30 = 16:15. In decimal, 8 hours 30 minutes is 8.5 hours.
- Estimate
- How we calculate
Total time
15:25
- Hours and minutes
- 15 hr 25 min
- Decimal hours
- 15.42 hours
- Minutes
- 925 minutes
Estimate before taxes and deductions. Overtime rules depend on your job, state and country.
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Found a mistake? Let us know or write to [email protected]. How we calculate
How the hours are counted
- Add time: every row is turned into minutes, added or subtracted, and turned back into hours and minutes. 60 minutes make 1 hour, so 8:45 + 7:30 is 16:15.
- Between times: end time minus start time, minus the unpaid break. An end time earlier than the start is the next day, so 10:00 PM to 6:00 AM is 8 hours.
- Time card: each day is counted the same way and the week is added up. Hours over 40 in the week are shown apart.
- Decimal hours divide the minutes by 60: 8 hr 30 min is 8.5 hours, not 8.30. Pay is decimal hours × hourly rate.
Hours are counted in whole minutes. Rounding rules for clock-in times (to the nearest 5 or 15 minutes) vary by employer and are not applied.
Step by step
- Pick the mode. Add time to add or subtract durations, Between times for one shift, or Time card for a whole week.
- Type the times. Use 8:30, 8.5 or 1 hr 15 min for durations and the time pickers for start and end times. Breaks are in minutes.
- Read the total. See hours and minutes, decimal hours and, on the time card, the hours over 40.
- Add your hourly rate. Optional: type your rate to see the pay, with hours over 40 at 1.5× on the time card (the U.S. federal rule; untick it if it does not apply to you).
Frequently asked questions
How do I calculate hours worked with a lunch break?
Subtract the start time from the end time, then subtract the unpaid break. 9:00 AM to 5:30 PM is 8 hours 30 minutes; minus a 30-minute lunch it is 8 hours, or 8 in decimal hours.
How many hours is 9 to 5?
9:00 AM to 5:00 PM is 8 hours. With an unpaid 30-minute lunch, the paid time is 7 hours 30 minutes, and five such days make 37:30 a week.
How do I convert minutes to decimal hours for payroll?
Divide the minutes by 60. 15 minutes is 0.25 hours, 30 minutes is 0.5 and 45 minutes is 0.75, so 7 hours 45 minutes is 7.75 hours. Never write 7:45 as 7.45: that would pay 27 minutes instead of 45.
How do I add hours and minutes together?
Add the hours and the minutes separately, then turn every 60 minutes into one hour. 8:45 + 7:30 is 15 hours and 75 minutes, which is 16:15. The total can pass 24 hours because it is a duration, not a time of day.
How do I count hours for an overnight shift?
When the end time is earlier than the start, the shift ends the next day: add 24 hours to the end time. 10:00 PM to 6:00 AM is 8 hours. The calculator does this on its own.
How is overtime counted on a weekly time card?
Under the U.S. federal Fair Labor Standards Act, covered non-exempt employees get at least time and one-half for hours over 40 in a workweek. Five days of 8:00 AM to 5:00 PM with a 30-minute break are 42:30, so 2:30 is overtime. At $20.00 an hour that is $800.00 regular pay plus $75.00 overtime. Some states, such as California, also count daily overtime, and other countries have their own rules.