Time Tracking tool allowed team members to track time spent for different task. It's functionality included:
* enter time entries
* filter them by date period, user and status
* "advance status" - by default from tracked to approved and then to paid, but list of statuses is configured.
* additional portlets to get summary of time spent by users or by sites for period of time

This is free version and it is limited by 100 time entries per portal. If you need more - please ask sales@emdev.ru for unlimited Pro version.