While in theory it should be ready. In my experience it can be all over the place with some suppliers. One fella is fantastic, the other doesn't really have a clue. So for me and most of the pros that I know, we will put wood aside for quite some time to settle, acclimate and do any more drying that might be required. I'll rarely touch a set before it's been on my shelves for 1 year. But without a doubt some of the wood could be used within a week or two of receiving it.
I'm in the position of having more wood in stock that I could build with in my life time, so there's no rush in most cases.