title: Delphi Firemonkey get UTC time
body: <p>How does one get the UTC time in Firemonkey?</p>
  <p>I tried this code from another Stackoverflow answer but it appears GetSystemTime() is not available in FMX.</p>
  <pre><code>function NowUTC: TDateTime;
  Var UTC: TSystemTime;
  begin
    GetSystemTime(UTC);
    Result := SystemTimeToDateTime(UTC);
  end;
  </code></pre>