This timer can calculate the times for sunrise and sunset based on location coordinates (latitude and longitude). The location coordinates can be easily adjusted for most countries using postal codes. An earlier or later switch of the astronomical times can be set by up to 90 minutes, selectable in 1-minute increments. The astronomically controlled on/off function is preset for channel A.

Applications include community lighting (streets, squares, monuments, fountains, etc.), gardens, parking lots, shops, illuminated signs, irrigation systems, as well as heating and cooling systems.