General Rom Release Times?

I searched for this question but couldn't find anything. I was just wondering at what time do roms usually come out? Like Knights in Nightmare is supposed to come out today(June 2nd, 2009). For this website, does the rom come out the instant it gets dumped? Or is there a more typical time when the rom will come out(Like say generally the roms start coming from 9 am EST until 10 pm EST)? Like I noticed some roms come out early, some late, and some right on time. Super Robot Taisen Frontier came out late almost a week. There was one rom that came out like a week early, most roms come out the day the game actually gets released but typically it's by the time I wake up. (9 am EST or later).

Usually they're dumped the day or the next when they're released. Depends what kind of game though usually.

I have noticed, if it's a REALLY popular game, it has a way of finding it's self on the web before release, eg. Grand Theft Auto: ChinaTown Wars.

still no Knights in the Nightmare =(

It will be available once someone buys it and dumps it. This thread won't make it come any faster ;)