def _validate_start_date(self, text):
        try:
            startval = datetime.strptime(text, self.conf['locale']['longdateformat'])
            self._startdt = self.localize_start(
                datetime.combine(startval.date(), self._start_time))
        except __HOLE__:
            return False
        else:
            return startval
dataset/ETHPy150Open pimutils/khal/khal/ui/startendeditor.py/StartEndEditor._validate_start_date