Bringing this subject line back to the top of the page for the February scheduled maintenance alert.
Just published on the Inside AdWords blog:
On Saturday, February 16th, the AdWords system will be unavailable from approximately 10 a.m. to 2 p.m. PST due to scheduled maintenance. While you won't be able to sign in to your accounts during this time, your campaigns will continue to run as usual.
AdWords system maintenance typically occurs on the second Saturday of each month during the above times -- with this month being an exception to that rule, as previously noted in our January maintenance update.
We'll continue to update you via the blog as we always have, but you may want to take note of our intended dates and times to help you plan for any scheduled downtimes further down the road.