title: How to change hours in the date in Scala
body: <p>I'd like to know how to change the hour of a date.</p>
  
  <p>For example, if the date is a string in the form "2015-06-06 00:00:00" I want to change the hour aspect so that it becomes "2015-06-06 07:00:00"</p>
  
  <p>So simply, I'd like to parse Scala a string of the date, then change the hour of it. </p>