A broadcast day can be defined freely: For example, the broadcast day of a channel can last from 06:00:00:00 AM to 05:59:59:24 AM of the following day or it may span less hours, e. g. from 06:00:00:00 AM to 09:00:00:00 AM (a channel for children, for example). The broadcast day depends on the channel and can be defined in the ContentExplorer in Amin > Edit parameter > Channel > Broadcast start/Broadcast End.