title: fullcalendar timegridweek don't show events time properly
body: <p>I use fullcalendar to make a calendar with three view(dayGridMonth,timeGridWeek,listMonth) and they work fine except timeGridWeek that don't show events in proper time file, you can see in this image:</p>
  
  <p><img src="https://i.stack.imgur.com/jIqSO.png" alt="timeGridWeek error"></p>
  
  <p>this is the code of calendar:</p>
  
  <pre><code>document.addEventListener('DOMContentLoaded', function() {          
              var calendarDiv = document.getElementById('calendar');
              $.getJSON("/exams/events", function (data) {
                  var calendar = new FullCalendar.Calendar(calendarDiv, {
                      buttonText: {
                          today:'Hoy',
                          dayGridMonth:'Mes',
                          dayGridWeek: 'Semana',
                          listMonth: 'Lista'                                    
                      },
                      firstDay: 1,
                      bootstrapFontAwesome:{
                          prev: 'fa-angle-left',
                          next: 'fa-angle-right'
                      },
                      themeSystem : 'bootstrap',              
                      locales: 'es',
                      plugins: [ 'dayGrid', 'timeGrid', 'list', 'bootstrap'],
                      minTime: '08:00:00',
                      maxTime: '21:00:00',
                      slotDuration: '00:30:01',
  
                      nowIndicator: true,
                      displayEventTime: true,
                      timeFormat: 'H(:mm)',
                      slotLabelFormat: {
                          hour: 'numeric',
                          minute: '2-digit',
                          omitZeroMinute: false,
                          hour12: true,
                          meridiem: false,//no funciona
                          omitCommas: true
                          },
                      defaultView: 'dayGridMonth',
                      header: {
                          left: 'dayGridMonth,timeGridWeek,listMonth',
                          center: 'title',
                          right: 'today prev next'
                      },
                      allDayText: '',
                      height: 'auto',
                      editable: true,
                      events: data
                  });
                  calendar.addEventSource('/releases');
                  calendar.render();
                  changeCalendarView();               
              });         
          });
  </code></pre>
  
  <p>the day and time format that I set is with his format :
  <code>SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX")</code></p>
  
  <p>Am I doing something wrong?
  Do I have to change the date format?</p>
  
  <p>Thanks for all!!</p>