:up: If you have a time you would like to shut down your computer, try "TimedShutdown" by Nic Wilson. It's free but donations are accepted, and it works.

http://www.dvdinfopro.com/download.php, then to
http://www.timedshutdown.com/download

TimedShutdown
v1.003 (9/June/2010) [1.86MB] - Full Version Freeware
This program allows you to specify a date and time for your computer to shut itself down. It’s great for those night time computing processes to save power once done or to shutdown at a time if you fall asleep or forget. It is freeware, please donate to support future enhancements if you like it and use it.

Actual file download here:
http://www.timedshutdown.com/ftp/bin/TimedShutdownSetup.zip