code: def __get_current_datetime(self):
          
          self.wql_time = "SELECT LocalDateTime FROM Win32_OperatingSystem"
          self.current_time = self.query(self.wql_time)
          # [{'LocalDateTime': '20160824161431.977000+480'}]'
          self.current_time_string = str(
              self.current_time[0].get('LocalDateTime').split('.')[0])
          # '20160824161431'
          self.current_time_format = datetime.datetime.strptime(
              self.current_time_string, '%Y%m%d%H%M%S')
          # param: datetime.datetime(2016, 8, 24, 16, 14, 31) -> type:
          # datetime.datetime
          return self.current_time_format
docs: Get current datetime for every file.