Scheduled Game Maintenance - 12/18/2012Source
#1 - 2012/12/17 11:24:00 PMWe will be performing scheduled game maintenance for Diablo 3 on Tuesday, December 18th. Maintenance will begin at 5:00 AM PST and is expected to last for 2 hours. During this time Diablo 3 will not be available for play. In addition, many web services will be unavailable.
Thank you for your patience.