daypart verb 2noun 1forms 3 verb2 •To divide the broadcasting day of (a station) into periods airing different types of material.A lot of Top 40 stations were heavily dayparted, so softer stuff only got played in the daytime, or harder stuff only got played at night. — 2005 •To assign (material) to such a period.Like most R&B stations, rap is dayparted after 6 p.m. but shunned between the hours of 9 p.m. and midnight, when the station runs its quiet storm show. — 1994 noun1 •A part of the day in which a particular type of radio or television program is aired.Prime time is the daypart with the most viewers. formsdayparted · dayparting · dayparts