Quick Answer: Prime time, or peak time, is the block of broadcast programming taking place during the middle of the evening for television shows. It is mostly targeted towards adults. It is used by the major television networks to broadcast their season's nightly programming. The term prime-time is often defined in terms of a fixed time period—for example, from 8:00 p.m. to 11:00 p.m. or 7:00 p.m. to 10:00 p.m.. In India and some Middle Eastern countries, prime time consists of programmes that are aired on television between 8:00 p.m. and 10:00 p.m. local time.