Light off schedule start dawn to end dusk

Why is there not an option to set the light schedule to be always off during day light hours? My Flood Light Cams keep turning on from motion during the day so I want to set a schedule to keep them off during the day (from dawn to dusk). The only option is to set a custom time (which will need to be constantly adjusted throughout each season as the days get longer/shorter. There is an option for a start of dusk and an end of dawn, but not vice versa??