In the decades since 1990 the concepts of time and memory have made a strong return in the work of many photographers who seek not simply to reflect the world, but to illuminate how photography constructs our understanding of it. The Memory of Time explores the work of twenty-six contemporary artists from across the world - Sophie Calle, Moyra Davey, Idris Khan, Sally Mann, Susan Meiselas, Mikhael Subotzky and Patrick Waterhouse, Hiroshi Sugimoto and Carrie Mae Weems among them - who investigate the richness and complexity of photography's relationship to time, memory and history.