Title: How to get the time zone
function GetTimeZone: string;
var
TimeZone: TTimeZoneInformation;
begin
GetTimeZoneInformation(TimeZone);
Result := 'GMT ' + IntToStr(TimeZone.Bias div -60);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
label1.Caption := GetTimeZone;
end;