code: void zApplyMinimumToggleTimeMenuButtonWidthInPixels() {
          if (parent == null) {
              return;
          }
          Dimension menuButtonPreferredSize = parent.getComponentToggleTimeMenuButton().getPreferredSize();
          int width = menuButtonPreferredSize.width;
          int height = menuButtonPreferredSize.height;
          int minimumWidth = minimumToggleTimeMenuButtonWidthInPixels;
          width = (width < minimumWidth) ? minimumWidth : width;
          Dimension newSize = new Dimension(width, height);
          parent.getComponentToggleTimeMenuButton().setPreferredSize(newSize);
      }
docs: zApplyMinimumToggleTimeMenuButtonWidthInPixels, This applies the specified setting to the
  time picker.