Google reported a service issue with all of the Google Services (including Gmail, Drive, and Calendar) starting at approximately 6:50 AM today. The latest Google Status information is available at:
https://www.google.com/appsstatus#hl=en&v=issue&sid=5&iid=df974d012febcd7ad8ef758e5ae79327.
The issue was resolved at approximately 7:39 AM.
We apologize for any inconvenience this may have caused.
-Computing and Communications Services