title: plot histogram of datetime.time python / matplotlib
body: <p>I am trying to plot a histogram of datetime.time values. Where these values are discretized into five minute slices. The data looks like this, in a list:</p>
  
  <pre><code>['17:15:00', '18:20:00', '17:15:00', '13:10:00', '17:45:00', '18:20:00']
  </code></pre>
  
  <p>I would like to plot a histogram, or some form of distribution graph so that the number of occurrences of each time can be examined easily.</p>
  
  <p>NB. Given each time is discretised then. The maximum number of bins in a histogram would be 288 = (60 / 5 * 24)</p>
  
  <p>I have looked at matplotlib.pyplot.hist. But is requires some sort of continuous scalar</p>