What planet turns the quickest?

Question: What planet turns the quickest?
- Keywords:
  physics,
  planet,
  space
Asked by Cheesers77 to Áine, Ciarán, Eoin, Lydia, Victoria on 20 Nov 2014.
- Lydia Bach answered on 20 Nov 2014:
  
  Hello,
  
  of all the planets in our solar system, Jupiter rotates on its axis in less than half Earth days (thats 9.8 hours). A day on saturn is much shorter than a day on earth as well, and lasts just over 10 hours, the time it takes for one rotation.

Question: What planet turns the quickest?