I got called in for an interview about a week after applying. Interviewed and offered position same day.
It can be anywhere from 30-days to 3months. It really depends on the job, how many applicants apply and management availability.
It can be very fast or very slow. I was a consultant for the Network for 18 months then one day a job opened that I applied for and I was hired and in the new position in 2 weeks. Other positions stay unfilled for months, with dozens of candidates interviewing, before they are filled.