title: FullCalendar: Show total added event hours for each
body: <p>I'm using <strong>FullCalendar</strong> by Adam Shaw with knockoutjs. I'm able to add, delete and drap-drop events. In week mode and day mode, I want to display the total hours of the events added for that particular day.</p>
  
  <p><img src="https://i.stack.imgur.com/UCVcb.png" alt="enter image description here"></p>
  
  <p>If I delete, re-size or move an event, the above total time should get changed.</p>
  
  <p>I have done using DOM manipulation by calculating and appending to the DOM by id. Initially I hardcoded as 0. This works fine for the current view only. If I click next and again come back to the previous dates it gets reset to 0. </p>