The midday block (defined by Arbitron as 10 a.m. to 3 p.m., though often extended later to about 5 p.m.) is mostly music, and in many places is at least partially voicetracked from another market. For a period around noon a station may play nonstop music or go to an all-request format for people eating lunch. This block is often occupied by a "no-repeat workday;" stations that offer this feature usually target captive audiences such as retail workers, who have to listen to the station for long periods of time and can become irritated by repetition.