Multiple Fixed Rates This illustrates an example of multiple fixed rates that are charged only during prime time. Time is only counted during prime time hours. These are 8 am until 5 pm on Monday through Friday. All other times are free. The first 50 hours per month of prime time use cost $19.95. The next 20 hours per month of prime time use cost $2.95 per hour. The next 30 hours per month of prime time use cost $1.95 per hour. All hours in excess of 100 hours of prime time use are $0.95 per hour.