Here you enter manual corrections to the current activity time.

A correction has a start time and a duration in hours:minutes:seconds. It also has a reason and a sign (plus or minus).

Once added, the correction will change to total time of the current activity by the amount of its duration.

To be correctly taken into account in the graph, the start time of a negative correction and its duration should be within the time lap which is to be corrected. And the start of a positive correction should correspond to the actual time when the unrecorded activity lap has taken place.

For more details see: Manual.