The Community Service Reports summarize the hours your members have spent on community service projects in a given period of time.
To produce this report, go to Events → Event Reports → Community Service Reports.
Enter the range of dates for which you wish to run the report, then press the button for the version of the report you wish to see.
The Service Hours By Event button will produce a report that looks like this:
The Service Hours By Person button will produce a report that looks like this: