Work Hours Calculator
Calculate hours worked and overtime from start time, end time, and breaks, including overnight shifts.
Last updated: 2026-03-15
What this page helps you check
Enter start time, end time, and break time to estimate net hours worked and overtime beyond a standard 8-hour day.
- Review total work time for a single shift
- Check overnight shifts without manually converting dates
How to read the result
If the end time is earlier than the start time, the calculator treats the shift as crossing midnight. This is a schedule check, not a payroll-grade timekeeping system.
FAQ
- Can I calculate a shift that crosses midnight?
- Yes. If the end time is earlier than the start time, the calculator treats it as the next day.
- Can I change the standard workday length?
- Not in the current version. The overtime reference is fixed at 8 hours.
- Does this include night differentials or payroll rules?
- No. This tool estimates worked hours and overtime only, and does not replace payroll-specific calculations.