Source: WorldofTanks NA
Tankers, We are currently experiencing a power outage in one of our data centers, causing game services to go offline. Our team has been hard at work bringing services up in our backup data center and is still working on the solution. Unfortunately, due to the nature of the problem we do not expect service to return until Saturday, April 24 at 02:00 PT | 04:00 CT | 5:00 ET. All account data and progress are safe and will be available when the server returns.
Players are our number-one priority. We understand your frustration and thank you for your support and patience during this interruption.
We will issue compensation for the downtime once the issue is fixed—details are to come in a future message.
Product Director, World of Tanks