message: Added clear initial state example, and fixed selectedDate for IE users.
diff: @@ -4,12 +4,17 @@ import { IconButton, Icon, InputAdornment } from 'material-ui';
  export default class CustomDateTimePicker extends PureComponent {
  state = {
  - selectedDate: new Date('2018-01-01 18:54'),
  + selectedDate: new Date('2018-01-01T18:54'),
  + clearedDate: null
  +
  }
  handleDateChange = (date) => {
  this.setState({ selectedDate: date });
  }
  + handleClearedDateChange = (date) => {
  + this.setState({ clearedDate: date });
  + }
  render() {
  const { selectedDate } = this.state;
  @@ -54,6 +59,15 @@ export default class CustomDateTimePicker extends PureComponent {
  mask={[/\d/, /\d/, /\d/, /\d/, '/', /\d/, /\d/, '/', /\d/, /\d/, ' ', /\d/, /\d/, ':', /\d/, /\d/, ' ', /a|p/i, 'M']}
  />
  </div>
  +
  + <div className="picker">
  + <DateTimePicker
  + value={clearedDate}
  + onChange={this.handleClearedDateChange}
  + helperText="Clear Initial State"
  + clearable
  + />
  + </div>
  </Fragment>
  );
  