Edges separate the broadcast day in rough time blocks. They thus help the program planner on placing slots and events. Edges just serve to limit and mark various scheduling areas, for example the prime time. Edges are created for a certain duration (e. g. Monday to Friday); they are defined by their start time.
- Start date: Day 1, End day: Day 7
- Time: 20:00: Begin of the prime time
- Time: 22:30: Begin of the night program (R-rated movies)