Time calculator (hours and minutes)
Totals of hours and minutes, hours worked, and clock time plus or minus a duration. Results in h:mm and decimal hours.
Add up times
Hours worked
Clock time ± duration
How to use
- Add up times: one per line. A plain number is minutes (45 = 45 min); 1:30 is 1 hour 30 minutes.
- Hours worked: enter start, end and break. An end earlier than the start runs past midnight.
- Clock time ± duration: a change of day is shown as (+1 day).
Questions
What are decimal hours?
Hours as a decimal number, as used on timesheets: 2 hours 15 minutes is 2.25 hours.
Which formats are understood?
45 (minutes), 1:30, 1.5h, 2h 15m, and Korean or Japanese forms such as 1시간 20분 or 3時間. A leading minus subtracts.
Night shifts?
If the end is earlier than the start (22:00 → 06:30), the shift is counted into the next day.
Seconds?
Not yet: minutes are the smallest unit.
Is anything saved?
No. It is calculated in your browser only.
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