Sets whether or not to display the hours combo box for this widget.

        :param      state | <bool>

def setShowHours(self, state=True):
        """
        Sets whether or not to display the hours combo box for this widget.

        :param      state | <bool>
        """
        self._showHours = state
        if state:
            self._hourSeparator.show()
            self._hourCombo.show()
        else:
            self._hourSeparator.hide()
            self._hourCombo.hide()