Changer Screen Saver time in Windows 7

Changing Screen Saver time in Windows 7 is under Appearance and Personalization, not under display
1) Click start -> Control panel, you can see control panel->Appearance and Personalization
2) Click control panel, then clicking Appearance and Personalization
3) Click change screen saver under personalization, a window popup.
4) Change wait 1 minute to the minutes you want.