Sand is the media of temporality. Tracks in the sand are blown away by wind or flattened by water, and the hourglass is one of the most poignant symbols for the passing of time. No wonder, therefore, that Roman Signer (*1938, Appenzell, CH, lives in St.Gall, CH) repeatedly uses the stony grain for his artistic actions. He is one of art’s protagonists who established aspects such as movement, change and fugacity as integral part of sculpture from the 1970s onwards. With his unique «time sculptures», Signer made an essential contribution to a new understanding of art. Häusler Contemporary München’s thematic exhibition is dedicated to this important aspect of Roman Signer’s oeuvre: for the first time, we focus on works in which the material sand plays a main role.