closeOnSelect not working

I'm working with react-datetime latest version(2.15.0). But closeOnSelect is not working. Date picker is closing after selecting either date or time.
` this.handleTimeChange(event)}
dateFormat={"DD MMMM, YYYY"}
className={'datepicker'}
open={false}
closeOnTab={true}
viewDate={'Date'}
timeFormat={"hh:mm A"}
closeOnSelect={false}
inputProps={{readOnly: true }}
/>`

It's working when I removed onChange event.