ant-design/components/time-picker/demo/size.md

order	title
2	zh-CN en-US 三种大小 Three sizes

zh-CN

三种大小的输入框，大的用在表单中，中的为默认。

en-US

The input box comes in three sizes. large is used in the form, while the medium size is the default.

import { TimePicker } from 'antd';

ReactDOM.render(
  <div>
    <TimePicker defaultValue="12:08:23" size="large" />
    <TimePicker defaultValue="12:08:23" />
    <TimePicker defaultValue="12:08:23" size="small" />
  </div>
, mountNode);