👉 A day beacon is a device that emits a light signal on a certain date and time each day, typically at 12 noon. This signal is intended to be used as an indicator of daylight hours or as a way to synchronize clocks and other equipment with the local calendar. Daybeacons are commonly used in emergency situations, such as during night-time emergencies or during a power outage where it's not possible to use traditional light signals.