One of the crucial things on each project is total amount of time spend working on that particular project. This information can help you calculate the costs, find out how effective your team is, etc.
In activeCollab project time reports can be easily extracted: just visit the project's Time tab and click the Report button in the top right corner. All time reports previously created will be displayed in the drop down menu, and you can choose the one you need. Each of these filters will be applied to this project only.

If you wish to create different report, just click the New Report Button. To have a report that lists all project's time, set it up in this way:

Created report will enable you to see the total project time without much difficulties. You can also change report criteria (Assigned to, For Day and Status), and create more specific time reports (for example: time logged by one person, time logs for specific date, display all billed time...)
All reports created this way (as project reports) will be available in each of your projects, as well as in the global Time reports.