
Division of the broadcast day constituting a single timeband (e.g. early morning: 06.00-09.00; peak or prime time: 19.00-23.00, etc.). Most TAM systems divide the day into about eight dayparts (e.g. Early morning; Mid to late morning; Lunchtime; Early to mid afternoon; Late afternoon; Peak/Prime time, Late evening; Night). The dayparts correspond w...
Found on
http://www.agbnielsen.net/glossary/glossaryQ.asp?type=alpha&jump=none

Broadcast media divide the day into several standard time periods, each of which is called a 'daypart.' Cost of purchasing advertising time on a vehicle varies by the daypart selected.
Found on
http://www.encyclo.co.uk/local/21023

Refers to the various multiple hour slots of television
Found on
https://www.encyclo.co.uk/local/22467
No exact match found.