When the computer is performing a lengthy task, like converting a video or downloading afile large Internet, you have to wait for it to complete to turn off your computer.
To resolve this problem, you can schedule automatic shutdown of the computer. AutoShutter is a free program that offers a easy to schedule automatic shutdown of the computer.
Using AutoShutter, you can shutdown, reboot, hibernate, suspend or log off your computer automatically. To use it, select the task you want to run in System Event, set the time you want to perform the task and click Apply. Okay, now the task will run at the specified time.
The program also offers hotkeys to shutdown, reboot, hibernate, suspend or log off your hand. In the menu Commands you find all the hot keys to perform these tasks.
Finally, you can use the AutoShutter as alarm and to schedule the execution of a program on a predetermined schedule. To use this option, simply choose the task Run an App in System Event.