1)   Vertabase Timer 0.9
Track time on projects and track time on clients with a sleek desktop widget - Windows & MAC. Generates detailed time usage report that exports to XML for use in other applications. The desktop clock and time tracking application you've waited for.

 2)   WR Time Tracker 0.4
WR Time Tracker is a simple, open source, web-based time tracking system. It allows you to create user logins and organize them in teams, create and modify projects and activities, input work time, generate & send reports & invoices. 6 languages.