<DemoItem label="DateTimePicker">
  <DateTimePicker defaultValue={todayAtNoon} minDateTime={todayAt3PM} />
</DemoItem>
<DemoItem label="DateTimeRangePicker" component="DateTimeRangePicker">
  <DateTimeRangePicker
    defaultValue={[todayAtNoon, todayAt3PM]}
    minDateTime={todayAt3PM}
  />
</DemoItem>