title: Python : Comparing two times, and returning in minutes
body: <p>I have a method which takes two strings (times) e.g. <code>15:01</code>
  The method should take the times and do <code>time1-time2</code> and return to me a new time in minutes.
  eg. <code>15:53 - 15:59</code> should give me <code>6 minutes</code> however i'm stuck.</p>
  
  <p>This is my code:</p>
  
  <pre><code>import datetime 
  class timeCalc(object):
      def timeDiff(self,time1,time2):
          timeA = datetime.datetime.strptime(time1, "%H:%M")
          timeB = datetime.datetime.strptime(time2, "%H:%M")
          newTime = timeA - timeB
  </code></pre>