Time Card Calculator
Calculate daily and weekly clock-in and clock-out hours across a full workweek.
FREE WORK & PAY TOOL
Work Hours Calculator
Enter your start time, end time, and unpaid break to calculate hours worked, shift length, decimal hours, and estimated weekly hours.
No signup
Instant results
Breaks included
CALCULATOR
Calculate work hours
Enter your shift times and unpaid break.
If your shift ends after midnight, Numviro automatically treats the end time as the next day.
YOUR RESULTS
8h 0m
Total hours worked per day
Shift length
8h 30m
Break time
30m
Decimal hours
8.00
Weekly hours
40.00
How to calculate work hours
Subtract your start time from your end time, then subtract any unpaid break time.
Work hours = End time − Start time − Unpaid break
Example
If you work from 9:00 AM to 5:30 PM, your shift lasts 8 hours 30 minutes. After subtracting a 30-minute unpaid break, your total work time is 8 hours.
What if a shift crosses midnight?
If your end time is earlier than your start time, Numviro assumes the shift ended the following day. For example, 10:00 PM to 6:00 AM is treated as an 8-hour overnight shift before breaks.
How to convert work time to decimal hours
Payroll and time sheets often use decimal hours instead of hours and minutes. Divide the minutes by 60 and add the result to the whole hours. For example, 8 hours 30 minutes equals 8.50 hours, while 7 hours 45 minutes equals 7.75 hours.
Decimal hours = Hours + (Minutes ÷ 60)
Common work-hours examples
A 9:00 AM to 5:00 PM shift with a 30-minute unpaid break equals 7 hours 30 minutes worked. A 9:00 AM to 5:30 PM shift with a 30-minute break equals 8 hours worked. A 10:00 PM to 6:00 AM overnight shift with no break equals 8 hours worked.
Frequently asked questions
Does break time count as work time?
This calculator subtracts the break minutes you enter. Whether a break must be paid depends on local rules and workplace policies.
How do I convert minutes to decimal hours?
Divide minutes by 60. For example, 30 minutes equals 0.5 hours and 15 minutes equals 0.25 hours.
Can I use this for night shifts?
Yes. Overnight shifts that pass midnight are supported automatically.
Can I estimate weekly work hours?
Yes. Enter the number of days you work each week and Numviro multiplies the daily worked hours by that number.
How many hours is 9 AM to 5 PM with a 30-minute break?
The full shift is 8 hours. After subtracting a 30-minute unpaid break, the total worked time is 7 hours 30 minutes, or 7.50 decimal hours.
How many hours is 9 AM to 5:30 PM with a 30-minute break?
The shift lasts 8 hours 30 minutes. Subtracting a 30-minute unpaid break leaves 8 hours of worked time.
Can I use this calculator for a time card?
This page is useful for a single repeated shift. If you need different clock-in and clock-out times for each day of the week, use the Time Card Calculator.