FullCalendar events are not spanning across multiple days

[bCubed]

I have been working on a web application that requires a calendar that will display events along with information about them. I have been using the full calendar API to handle the calendar for me. But I whenever I have an event that spans across multiple days the calendar does not render the event on each day. It will only show the event on the first day and then again on the next sunday, which does not make sense to me. I know the full calendar supports this because I saw an example of it on their site but I do not know what I am doing wrong.

This is how I am initializing the calendar and inserting events

<script type="text/javascript">
    $(document).ready(function(){
      //initialize calendar
      $('#calendar').fullCalendar({
        //options and callbacks


     eventSources: [

        // your event source
        {
            events: [ // put the array in the `events` property
                {
                    title  : 'event1',
                    start  : '2016-01-15T23:59',
                    end    : '2016-01-21T00:01',
                    isMultipleDay: true
                }
            ],
            color: 'blue',     // an option!
            textColor: 'yellow', // an option!
            nextDayThreshold: "00:01"
        }

        // any other event sources...

    ]



      })
    });
  </script>