Greg Jenner is joined by Dr David Rooney and Desiree Burch at the literal beginning of time to explore the history of timekeeping. Covering everything from the origins of timekeeping to time in space, we even learn how you can smell the time! Above all, we finally find out who you can blame for daylight savings and the real reason it was invented.

For the full-length version of this episode, please look further back in the feed.

Research by Rosie Rich Written by Emma Nagouse and Greg Jenner Produced by Emma Nagouse and Greg Jenner Assistant Producer: Emmie Rose Price-Goodfellow Project Management: Isla Matthews Audio Producer: Steve Hankey

You’re Dead To Me is a production by The Athletic for BBC Radio 4.