title: Alexa understand 24 hour
body: <p>I am trying to build an Alexa skill that asks the user for an arrival time and I am expecting the answer to be in 24 hour format. So the user would say eighteen o five for 18:05. </p>
  
  <p>I am struggling to find a way for Alexa to understand this without forcing the user down the 12 hour route. </p>
  
  <p>Any suggestions welcome. </p>