Add up hours and minutes
Time doesn't add up in tens — sixty minutes make an hour — so totalling a timesheet or working out the gap between two times by hand invites mistakes. This calculator adds durations correctly and finds the time between a start and an end, giving you a clean total in hours and minutes.
How to use it
- Enter durations to add, or a start and end time to measure the gap.
- Read the total in hours and minutes.
- Copy the figure for a timesheet or invoice.
Where it helps
- Totalling hours worked across a week.
- Finding how long something ran from start to finish.
- Adding several durations without converting to decimals in your head.
Questions people ask
Does it handle times past midnight? Yes — an end time earlier than the start is treated as the next day, so overnight spans total correctly.
Is my input stored? No — the calculation runs in your browser.