Board Thread:Support Requests - Getting Technical/@comment-26490454-20151022205634/@comment-1929113-20151023183002

Ripto's response is mostly correct. Though the length of a global block can be anything, from 0 seconds to the end of time. :P

If you are caught in a global block, you should consider what you did to get the block. If you'd like to appeal one, please send in a message to Special:Contact/general or email community@wikia.com and include the block id (which is shown when you try to make an edit).