message: Change CustomElements format
diff: @@ -69,7 +69,7 @@ class CustomElements extends Component {
  return (
  <div className={wrapperClassName}>
  <IconButton className={dayClassName}>
  - <span> { date.format('DD')} </span>
  + <span> { date.format('D')} </span>
  </IconButton>
  </div>
  );
  