title: Symfony 2.1. How can I display a single_text time field in 12 hour am/pm format?
body: <p>I have a time field on my form with widget set to 'single_text'.</p>
  
  <p>My US users will want 12 hour am/pm format.</p>
  
  <p><a href="http://symfony.com/doc/current/reference/forms/types/time.html#widget" rel="nofollow">http://symfony.com/doc/current/reference/forms/types/time.html#widget</a></p>
  
  <p>Although it's not entirely obvious, that accepts an input of 2:15pm but if the form returns because of a validation error on another field or is later opened to edit an existing record then it displays 14:15 which of course is correct but is probably off-putting.</p>
  
  <p>How do I get it to display 2:15pm? I don't see an option to do that.</p>