Nothing seems more globally accepted than Greenwich Mean Time. Whether in South Africa, Columbia or Germany, we all structure our day accordingly. But why do our clocks tick to the tempo of Greenwich? Why do we reckon in hours, minutes and seconds? And most importantly: What are the political implications behind the ostensibly neutral use of Greenwich Mean Time? What does the clock have to do with colonisation? Aleida and Jan Assmann (a pair of cultural scholars) join activists Moor Mother and Rasheedah Philipps (a musician and an artist, comprising the Black Quantum Futurism collective) and Eugene Yiu Nam Cheung (author and critic) to take a critical look at our understanding of time and explore new, more decentralised ways of marking time.