Hours Worked Calculator
Calculate total hours worked from any start time to end time, with an optional break deduction. Works for any shift length, including overnight shifts.
Hours worked
How to calculate hours worked
Subtract start time from end time to get total time, then subtract any unpaid breaks. For overnight shifts, add 24 hours if the end time is earlier than the start time. Example: 9:00am to 6:00pm minus 1 hour lunch = 8 hours worked.
Frequently asked questions
Standard working hours vary by country. UK and UAE: typically 8 hours/day or 40–48 hours/week. Hours beyond this threshold are overtime, usually paid at 1.25x–1.5x the regular rate.
Yes — if you start at 10pm and finish at 6am, enter 22:00 and 06:00. The calculator automatically adds 24 hours to handle shifts crossing midnight.
Log your start and end times for each work session, then add up the totals. Multiply total hours by your hourly rate to calculate the invoice amount.