Isnt the more relevant question, when does the inventory get unpacked and released? I have found things "pop or" or become available, at all hours (well, all store hours, you know what I mean). I have found that right after lunch/ early afternoon seems to be a lucky time to show up, though (anybody else seeing that too?)
I know that the group on this forum is incredibly generous with information, but this is one piece of intel that, if I had it, I don't think I'd share....