I applied through a recruiter. The process took 1 day. I interviewed at Air National Guard (Fort Dix, NJ) in Apr 2015
Interview
You stay at a hotel the day before which offers free dinner and breakfast. The you take a bus to a processing station mines was Fort Dix (NJ). Then for about half a day you are processed and tested. My experience was longer because the power went out prolonging the experience to the whole weekend. instead of half a day.