Gshutdown: Advanced shutdown utility

GShutdown is an advanced shutdown utility which allows you to schedule the shutdown or the restart of your computer, or logout your actual session.
GShutdown is a free software under the GPL license. The graphical user interface uses GTK+2.

This is a very handy application to schedule the shutdown or the restart of your computer.

Its freely available for download in most repositories but you can also download it at their website  gshutdown.tuxfamily.org