[ubuntu] Chaning UTC to NO

I have a desktop that has two hard drives, one for windows and one for linux. Normally windows adds 4 hours to the time if Ubuntu has been booted previously and I found out that the solution to that problem was to open a file with super user privileges and then chaning the option UTC from yes to no. Here is the command I used to use:

gksu gedit /etc/default/rcS

To my surprise, the UTC Option is no longer there. I would like to know what I have to do now to fix this. Thanks in advanced.