title: VSTS change time zone
body: <p>Will changing global time zone in VSTS impact existing tasks, or it is a display option only? Have a customer that is considering to change this, but is concerned whether it can impact existing projects.</p>
  
  <p><a href="https://i.stack.imgur.com/Pt0ju.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Pt0ju.png" alt="enter image description here"></a></p>