Systems, devices, apparatuses, components, methods, and techniques for building customized media programs for a specified duration are provided. An example media-playback device for generating customized media programs for a route to a specified duration includes a user preferences engine to determine a user's listening preferences, a duration engine to determine a duration of the route, and a duration-based media program engine for building a playlist of news and entertainment media content based on the duration of the route and the preferences of the user.