How to Shutdown PC with timer

Do you know that you can make your PC shutdown at a time u wish to?
Here is the trick!!
How To Make A Shutdown Timer!
********** METHOD # 1 ***************
Right click on your desktop and choose "New=>shortcuts".
In the box that says "Type the location of the shortcut",
type in "shutdown -s -t 3600 " without the quotation marks and click next. Note: 3600 are the amount of seconds before your computer shuts down. So, 60 secs*60 mins=3600secs.
Make up a name for the shortcut and you're done.
You can change the icon by right clicking=>properities=>change icon=>browse
TO ABORT:
To make an abort key to stop the shutdown timer just create another shortcut and make
the "location of the shortcut" to " shutdown -a" without the quotes.
********* METHOD # 2 **************{EASIER THAN THE PREVIOUS ONE}
Here is another trick to shutdown at a specific time, for example you wish to shutdown at 11 :35am. Type this in
start=>Run
Type Code: at 11 :35 shutdown - s
TO ABORT:
Code:shutdown -a