Digital weekly time switch with integrated Bluetooth interface for app programming with smartphone or tablet via app "DBT Timer". Potential-free changeover contacts for time-dependent control of operating equipment. Programming of daily, weekly, vacation, pulse, cycle and random programs with up to 120 memory locations. High security due to sealable transparent cover and access protection via PIN code. LED load switchable up to 500 W. Backlit display and automatic changeover from summer time to winter time.