code: def _decode_time(self, text):
          
  
          if self._kp.version >= (4, 0):
              # decode KDBX4 date from b64 format
              try:
                  return (
                      datetime(year=1, month=1, day=1, tzinfo=tz.gettz('UTC')) +
                      timedelta(
                          seconds = struct.unpack('<Q', base64.b64decode(text))[0]
                      )
                  )
              except BinasciiError:
                  return parser.parse(
                      text,
                      tzinfos={'UTC':tz.gettz('UTC')}
                  )
          else:
              return parser.parse(
                  text,
                  tzinfos={'UTC':tz.gettz('UTC')}
              )
docs: Convert base64 time or plaintext time to datetime