Guide
Understand your Work Hours result
A work hours calculator starts with the full shift span and subtracts the unpaid break you enter. It is useful for planning a routine, comparing shifts, or estimating weekly time, but official payroll records and workplace policy take priority.
Results are for general information. Review the site disclaimer before using a result for an important decision.
Calculate the full shift before subtracting a break
First find the time from your start time to your end time. A schedule from 09:00 to 17:30 is a full span of 8 hours and 30 minutes before any break is removed.
Then subtract the unpaid break. With a 30-minute unpaid break, that example becomes 8 hours of net working time.
Mark an overnight finish clearly
If the shift ends after midnight, the end time belongs to the following day. Select the overnight option so the calculator does not treat the end as earlier than the start.
For example, a shift from 22:00 to 06:00 the next day has an 8-hour span before breaks are removed.
Use recorded time for payroll or compliance
This estimate cannot decide whether a break is paid, whether overtime applies, or how an employer rounds attendance. Those details depend on the workplace policy, contract, and local rules.
Use the result for planning, then compare it with your employer's time record whenever pay, leave, eligibility, or a formal timesheet matters.