I haven't timed it, but it's too long. I did get this TV free from a curbside, and now I can see why. When I press the power button, it takes so long for the TV to come on that I wonder if I pressed it hard enough. Another thing is that the wiring seems to be crossed because when I press the power button, sometimes the volume changes. When I press the volume button, sometimes the settings options appear. I'd be upset if I had paid for this TV. However, for free, it's pretty awesome.