The Tin Woodman was stuck for a year after rusting in the rain. Use these websites and videos to explore how we measure time.
BBC Bitesize: measuring time video
Leap years
Challenge yourself!
Most people now use their mobiles for telling the time, but there are still clocks on buildings. Can you spot any clocks, or even a sundial, in your local area and tell us about it?
You can also look at the Help with Challenges page to come up with your own challenge for measuring time.
