Hours Calculator (Work Hours Between Times)

Enter a start time, an end time and an unpaid break to see the hours worked as hours and minutes and as decimal hours, with weekly totals…

Result

Hours worked

8 h 0 m

As decimal hours: 8
Per week: 40 hours
Per month (4.33 weeks): 173.33 hours

How to use Hours Calculator (Work Hours Between Times)

Enter the start and end time of the shift.
Enter the unpaid break in minutes, or 0.
Enter how many days a week you work, and an hourly rate if you want pay figures.
Read the hours worked, the decimal hours, and the weekly and monthly totals.

About this tool

The hours worked are the time from the start to the end, minus any unpaid break. A shift from 9:00 to 17:30 with a 30 minute break is 8 hours of work. Payroll often uses decimal hours, where 8 hours 15 minutes is 8.25, so the calculator shows both forms.

If the end time is not later than the start time, the end is taken to be on the next day, which is how night shifts such as 22:00 to 06:00 work. A shift cannot be longer than 24 hours in this calculator.

The weekly and monthly figures multiply a single shift by your days a week. The monthly figure uses 52 weeks divided by 12, which is 4.33 weeks a month. Pay figures are before tax and ignore overtime rates and rounding rules your employer may use.

How it is calculated

Minutes worked = end time − start time (plus 24 hours if the end is not later than the start) − unpaid break.

Decimal hours = minutes worked ÷ 60.

Worked examples

9:00 to 17:30 with a 30 minute break is 8 hours, or 8 × 5 = 40 hours over a five day week.
A night shift from 22:00 to 06:00 is 8 hours with no break.

Tips for better results

Enter breaks that are unpaid only. A paid break is part of the working time.
Check your employer's rounding rules, since some round to the nearest 5 or 15 minutes.
Use the Time Calculator to add up several shifts or tasks.

Frequently asked questions

How do I calculate hours worked?

Subtract the start time from the end time, then subtract unpaid breaks. This calculator does the steps for you.

How do I convert 8 hours 15 minutes to decimal?

Divide the minutes by 60 and add the hours: 15 ÷ 60 = 0.25, so 8.25 hours.

Does it work for overnight shifts?

Yes. If the end time is not later than the start time, it counts to the next day.

Does it work out overtime?

No. It gives straight hours and pay at one rate.

Are my numbers saved or sent anywhere?

No. The calculation runs in your browser on your own device. Nothing you type is sent to Paul Digital or any other server.

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Privacy

The calculation runs in your browser on your own device. The numbers you type are not sent to Paul Digital or any other server. Results are estimates from the numbers you enter and are not financial, tax or legal advice.