Time-Keeper Master Controllers were designed to integrate Astronomic Time-of-Day control with other devices (motion sensors, photocells, control stations, touch screens, etc.) to meet all requirements for energy savings and convenient control. The Time-Keeper Web Interface allows control from a computer, tablet, or phone browser through a built-in web server. It connects to a Time-Keeper MAX or Time-Keeper 2W master controller and enables the highest level of control available. Controlling lights, checking light statuses, and making programming changes can all happen through a Smart device, whether at home or on the road.