Time
Leap second could cause havoc
The saying goes that there aren't enough hours in a day, but it seems there aren't enough seconds, with another to be added at midday today. Audio
Leap Second
Today will be one second longer as 'leap second day' sees an adjustment to time. At midday today clocks were delayed for a second. It's done to allow the Earth's rotation to catch up with atomic time… Audio
A Colourful Time
The colour of light has a major impact on how our body clock perceives the time of day, with Dr Timothy Brown from the Faculty of Life Sciences at the University of Manchester. Audio
Alexander Rose - 10,000 Year Clock
Wallace talks to Alexander Rose, director of the Long Now Foundation, about a huge clock being built to go inside a mountain in Texas. It is designed to tick for 10,000 years and every so often it… Audio
Animal time perception
Kevin Healy's studying how 34 different animals, including the tuatara, perceive time. Audio
Pace Of Time
Calculating the differences in the cultural and psychological perceptions of time from one nation to another with Prof Robert Levine. Audio
Ideas for 7 September 2008
Ideas looks at theories of time - we can tell the time, but we're not so good at telling what time is. Audio
Timelords
Part five of the Writers and Readers week discussions. Panellists Patricia Grace, David Mitchell and Alexis Wright take part in a discussion chaired by Jane Stafford. Patricia Grace, winner of the… Audio