code: def _date_to_bika_date(self, date_time, only_date):
          
          # if only date the input date format is: 2017/01/26
          # else: 2017/01/26 12:47:09 PM
          if only_date:
              return datetime.strptime(date_time, '%Y/%m/%d').strftime('%Y%m%d')
          else:
              return datetime.strptime(date_time, "%Y/%m/%d %I:%M:%S %p").strftime("%Y%m%d %H:%M:%S")
docs: Convert a string containing a date from results file to bika format
          :param date_time: str with Date to convert
          :param only_date: boolean value that specifies if there is only a date
          to parse (true) or date plus time (false)
          :return: datetime in bika format