The results of five years of research work will be presented on June 16th 2010 in a final conference of the collegium in the DIN (German Institute for Standardization, registered association) Building in Berlin. The ClockWORK conference takes place subsequent to the 4th DIN-Expert Forum, "The Effects of Light on Human Beings". The international Expert Forum discusses the fundamental principles and possibilities of application in this field on June 15th 2010, on invitation of the Lighting Technology Standards Committee (FNL), in the DIN Building.