How to use it
- Enter a start time and an end time.
- Tick “next day” for overnight shifts that cross midnight.
- See the duration in hours & minutes, total minutes and decimal hours.
What it’s for
Working out how long something lasted from two clock times is surprisingly fiddly to do in your head — especially when it crosses midnight. This tool does it instantly: enter a start and end time and it tells you the duration in hours and minutes, the total minutes, and decimal hours. It’s ideal for filling in timesheets, calculating a shift or billable hours, timing a workout or a fast, and checking how long an event ran.
Overnight shifts
If your end time is earlier than your start time — say a shift from 22:00 to 06:00 — tick the “next day” option so the tool counts across midnight and returns 8 hours rather than a negative number.
Frequently asked questions
Why decimal hours? Payroll and timesheets often use decimal hours (e.g. 8.5 instead of 8 h 30 m), which are easier to multiply by an hourly rate.
Does it handle times that cross midnight? Yes — use the “next day” option for overnight periods.
Is anything stored? No — it all runs in your browser.