| prefixCls | String | 'rc-time-picker' | prefixCls of this component |
| clearText | String | 'clear' | clear tooltip of icon |
| disabled | Boolean | false | whether picker is disabled |
-| clearText | String | clear | clear text |
+| allowEmpty | Boolean | true | allow clearing text |
| open | Boolean | false | current open state of picker. controlled prop |
| defaultValue | moment | null | default initial value |
| defaultOpenValue | moment | moment() | default open panel value, used to set utcOffset,locale if value/defaultValue absent |