1 block: 10.1 minutes
Diff just changed but this is the first time I have ever seen block generation north of the magic ten minute mark. Maybe good news for miners??
I saw a +50 min block last week - it do happen.
There have been blocks that have been found seconds apart and there have been blocks that have been hours apart. The software tries to enforce an average of 10 minutes. It doesn't guarantee that every block will be found 10 minutes after the previous one.