They are selling 99.99% availability over a monthtly cycle for their Storage service. 99.95% connectivity for their Virtual Machine service.

http://azure.microsoft.com/en-us/support/legal/sla/

9 hours of downtime means they are down to at most 98.75% for this cycle.

Oh its 99.9% from Microsoft see http://azure.microsoft.com/en-us/support/legal/sla/ which means they get 9h a year to hit the SLA see http://uptime.is/