System downtime - September 22, 2012 8:00 PM through September 23, 2012 6:00 AM Athens. AdWords system maintenance is scheduled for September 22, 2012, 8:00 PM through September 23, 2012, 6:00 AM Athens. During this time, you won't be able to sign in to your account, but your campaigns will continue to run normally. We apologize for any ...