Initially the dayparts of the new channel are already copied by the channel copy function. Eventually they need adjusted. Unless you chose to create the new channel via the New button.

A daypart is mainly used for reporting functions like utilization reports.

1. The name of the daypart - this will be displayed in reports later on
2. duration during the day form/to
3. A daypart record is always defined for one channel
4. Due the weekdays selection dayparts can be defined for specific weekdays