Work hours calculator

Calculate a shift, add up multiple days or find your finish time from target working hours. Export a timesheet as CSV.

What to calculate

Start

Finish

Break (minutes)

Finish on the next day

Suggest improvements

Simple duration calculation, not a labor-law or wage determination. Paid breaks, overtime rates and daylight-saving transitions are not evaluated.

How to use Work hours calculator

Enter start, finish and break minutes. Select next-day finish for a shift crossing midnight.

Choose multiple shifts to total up to 31 entries and export CSV. Alternatively, enter target working hours to calculate a finish time. Saved drafts are stored only in this browser.

Example
09:00 to 18:00 with a 60-minute break gives 8 working hours.

Frequently asked questions

Is lunch automatically deducted?

Only the entered break is deducted. Change the default 60 minutes if needed.

How do I enter 22:00 to 06:00?

Select next-day finish. This gives 8 hours before breaks.

Reviewed: 2026-10-04 · Report an issue