function GMTToLocalTime(GMTTime: TDateTime): TDateTime;
var
GMTST: Windows.TSystemTime;
LocalST: Windows.TSystemTime;
begin
SysUtils.DateTimeToSystemTime(GMTTime, GMTST);
SysUtils.Win32Check(Windows.SystemTimeToTzSpecificLocalTime(nil, GMTST, LocalST));
Result := SysUtils.SystemTimeToDateTime(LocalST);
end;