Bringer Task Record log is a task-time tracking tool.
...It can runs on major Operating Systems like Windows 2000 / XP / 7 / 2003/ 2008, in MacOS Systems 10.6 / 10.7 /10.8 and on every Linux distributions supporting some graphical engine like gnome, xfce, lxde and others.
You need the Java VirtualMachine in version 1.7.0 or above. Last version of JVM is recommended.