Step 3: Under System -> goto
Power & sleep. You can see the
Screen and
Sleep option for off timing and sleep timing, respectively to be setup.
Step 4: Under monitor switch off, you can now see the setup timing options.
Step 5: The sleep timing can be setup now.
Step 6: I am
bit eager to know the option of clicking "
Additional power settings" hyperlink.
Step 7: This is a familiar option for the windows users. Hope you know it.