Display of timestamp in grid

BIZ TMS XData
7

I retested OnGetText in Demo\Basics\DataSet
with adding a handler:

WebClientDataSet1.Fields[0].OnGetText := FieldGetText;

procedure TForm1.FieldGetText(Sender: TField; var Text: string;
  DisplayText: Boolean);
begin
  Text := '---'+ Sender.AsString+'---';
  console.log(Text);
end;

and this works as expected.

In RTL\DataUtils there are several functions for getting UTC offset and use that for conversion.