Millions of businesses around the world rely on Google Apps to get work done every day. So, much like keeping Google search up and running, it’s a top priority for us to make sure Google Apps is available whenever (and wherever) you need it. For customers using Google Apps for Business, Education or Government, we offer a 99.9% availability guarantee, with zero scheduled downtime for maintenance. In 2010 and 2011, the actual availability for Gmail was significantly better than this guarantee. This was true again last year. In 2012, Gmail achieved 99.983% availability while at the same time adding dozens of new features. This translates to an average of just over seven minutes of service disruption per month over the last year, and most users experienced no disruption at all.
We’re proud of our track record, but we know our work is never done. All our products are built by people -- and because humans aren’t perfect, no technology is ever perfect either. We work hard to make sure any disruptions are rare, limited in scale and quickly resolved. And in the unlikely event something does go wrong, it’s important for our users to know. To that end, you can see the current status of any Google Apps service on the Google Apps status dashboard, a public website, at any time.