The Usage report will break your day into Work and Non Work data.
After you have selected your work hours, the report displays the kms done within work hours and kms done out of work hours, as well as the total kms traveled for the day. The report also shows the time spent driving, either within work hours or out of work hours.
The report will give you a percentage of Kms done within and out of work hours.
Please do keep in mind, if a trip starts within work hours but ends after work hours then the report will not be able to log this trip for you.