title: FullCalendar - Timezone does not work
body: <p>I am using <a href="https://fullcalendar.io/docs/timezone/timezone/" rel="nofollow noreferrer">FullCalendar</a> to power up my calendar app. 
  And I have spent three hours trying to understand why FullCalendar would ignore my timezone setting. The interesting thing is that if I change <code>Europe/Moscow</code> to <code>local</code>, then everything works. 
  Is there something I am doing wrong or is this a bug of FullCalendar ?</p>
  
  <p><a href="https://jsfiddle.net/9y8ecw1q/" rel="nofollow noreferrer">https://jsfiddle.net/9y8ecw1q/</a></p>