Effective and easy to use timeclock. Allows for rapid reporting, multiple users and locations, centralized management and more.
This seems to no longer be an open source project. Website links to a pay for only company.
Plenty of features for a small to mid size business. Very functional yet maintains a simple to use interface. It has been in use since version 1 and it functions without downtime. Looking forward to reading the change list for version 2 when posted. :)