However, viewing during primetime (between 8 p.m. and 11 p.m. Eastern and Pacific time and 7 p.m. and 10 p.m. Central and Mountain time, Monday through Saturday) did not have significant changes. An average U.S. household watched TV during primetime for about one hour and 52 minutes a day in 2006 and 2007, while an individual American aged above two watched it for about one hour and 10 minutes, eMarketer reported.