public void setValue(LocalDateTime dateTime) {
        long millis = dateTime.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
        setValue(millis);
    }
Gets the Today button on the overlay panel.

@return the Today button
primefaces-selenium/primefaces-selenium-components/src/main/java/org/primefaces/selenium/component/DatePicker.java