title: Converting UTC timestamp to ISO 8601 in Ruby
body: <p>I have a timestamp that is in UTC </p>
  
  <p>"2010-10-25 23:48:46 UTC"</p>
  
  <p>I need to convert it into ISO 8601</p>
  
  <p>"2010-10-29 06:09Z"</p>
  
  <p>The documentation is confusing as hell - what is the easiest way to do that?</p>