title: Display hours format 24h in FullCalendar
body: <p>I'm using FullCalendar in Drupal 7.</p>
  
  <p>I'm trying to make a weekly calendar with available hours, I'm having problems with the 24h schedule, the hours that should be 13:00 show only 13, without the: 00, 13:20 works normally, only the: 00 does not show.</p>
  
  <p>I'm using Axis format like this: H (: mm)</p>
  
  <p>Attached is some images for better understanding, could anyone help me?</p>
  
  <p>Problem in FullCalendar.</p>
  
  <p><img src="https://i.stack.imgur.com/j31Yt.png" alt="Problem in FullCalendar"></p>
  
  <p>Config in Views of Drupal 7.
  <img src="https://i.stack.imgur.com/nMQHQ.png" alt="Config in Views of Drupal 7"></p>