title: Changing short date format in Ubuntu
body: <p>How do I change the system-wide short date format in Ubuntu?  For example, Thunderbird is showing dates in the DD/MM/YY format, and I would like to change it to MM/DD/YY or YYYY-MM-DD.</p>
  
  <p>The best information I can find so far is in this thread:</p>
  
  <p><a href="http://ubuntuforums.org/showthread.php?t=193916" rel="noreferrer">http://ubuntuforums.org/showthread.php?t=193916</a></p>
  
  <p>Edit: I want to change the system-wide date format, so that all my applications use this new date format.</p>