How to use Time Calculator
- Choose a modePick Add up durations to total several times, or Clock time to find the time after adding or subtracting a duration.
- Enter the timesWrite one duration per line, such as 1:30, 1:30:15 or 1h 30m. Start a line with a minus sign to subtract it.
- Read the totalSee the result in hours, minutes and seconds, in decimal hours and in total minutes.
Common uses
- Add up the hours worked across a week
- Total the length of several videos or tracks
- Find when a task that starts at 09:15 will finish
Frequently asked questions
How do I use Time Calculator?
1. Choose a mode: Pick Add up durations to total several times, or Clock time to find the time after adding or subtracting a duration. 2. Enter the times: Write one duration per line, such as 1:30, 1:30:15 or 1h 30m. Start a line with a minus sign to subtract it. 3. Read the total: See the result in hours, minutes and seconds, in decimal hours and in total minutes.
Which formats can I use?
Use hours and minutes such as 2:45, add seconds with 2:45:30, or write 2h 45m 30s. A plain number counts as minutes.
How do I convert the result to decimal hours?
The decimal hours are shown next to the total. For example, 7:45 is 7.75 hours, which is handy for timesheets and invoices.
What if the clock time passes midnight?
The new time is shown with the number of days later or earlier it falls, so 23:00 plus 2 hours is 01:00 with +1 day.