Hours Calculator
Enter a start time, end time, and break length to calculate the local clock-time duration.
A QUICK WALKTHROUGH
How to use this tool
- Enter the start and end times.
- Add whole break minutes and select overnight when the shift crosses midnight.
- Calculate and review the worked time.
Overnight shifts
When overnight is selected, an end time earlier than the start time is placed on the following day.
Clear input rules
Times use the local clock and breaks must be non-negative whole minutes. The calculator runs locally in your browser.
GOOD TO KNOW
Common questions
Can I calculate an overnight shift?
Yes. Select overnight when the end clock time is earlier than the start time.
Are breaks deducted?
Yes. Enter the break as whole minutes and it is subtracted from the elapsed span.
Is my schedule uploaded?
No. The calculation stays in your browser.