Work Hours Calculator
Fill in start and end times (24-hour or 12-hour) and break minutes for each day of the week. See per-day hours, total hours, regular hours, overtime (configurable threshold), days worked, and average hours per day. Runs entirely in your browser.
Add weekly work hours from Monday through Sunday, subtract break minutes, handle overnight shifts, and estimate regular versus overtime hours using a configurable daily threshold.
How to calculate weekly work hours
- Enter start and end times for any days worked.
- Enter unpaid break minutes for each day.
- Set the overtime threshold in hours per worked day, then press Calculate.
- Review total, regular, overtime, days worked, and average hours per day.
Time and overtime rules
Times accept 24-hour entries such as 09:30 and simple 12-hour forms with am or pm. If the calculated end time is earlier than the start time, the tool treats the shift as crossing midnight and adds 24 hours before subtracting breaks.
Overtime is calculated from the weekly total against threshold × number of worked days. It does not calculate overtime separately for each individual day, and it does not implement jurisdiction-specific weekly, holiday, or double-time labor rules.
Privacy and limitations
All entered shifts and calculations remain in the browser and this application does not send timesheet data to an external server. The overtime result is a simple arithmetic estimate based on the configured threshold and should not be treated as payroll, legal, or labor-compliance advice.
Work Hours Calculator FAQ
Can it handle overnight shifts?
Yes. If the end time is earlier than the start time, the calculation treats the shift as ending the next day.
Are breaks deducted?
Yes. Each day has a break-minutes field that is subtracted from worked minutes.
How is overtime calculated?
It compares total worked minutes with the overtime threshold multiplied by the number of worked days.
Is overtime calculated separately for each day?
No. The implementation uses the weekly total and the number of worked days, not per-day excess summed independently.
Does this replace payroll or labor-law calculations?
No. It does not model local overtime, holiday, double-time, rounding, or payroll regulations.