You can do the regular shutdown based on times and dates but you can also shutdown based on CPU and memory usage and also CPU Temperature, so if you're running those hardcore applications or benching your system overnight and don't want it running all night, you can use this to shutdown after a while.

You can also shutdown based on network usage so it will help with those long overnight downloads.

Here are some key features of Shutdown Timer:

Shutdown,
Restart,
Logoff,
Lock,
Hibernate,
Standy,
Based on Date & Time,
CPU/Memory Utilisation,
CPU Temperature,
Networking options,
Ability to save your settings for furture use,
Completely Portable, You can take it on a USB if you want to!