// The date time in the chrono library is valid in the range
  // [-32767-01-01T00:00:00Z, 32767-12-31T23:59:59Z]. A 64-bit time_t has a
  // larger range, the function strftime is not able to format the entire range
  // of time_t. The exact point has not been investigated; it's limited to
  // chrono's range.
  const std::time_t chrono_timestamp_min =
      -1'096'193'779'200; // -32767-01-01T00:00:00Z
  const std::time_t chrono_timestamp_max =
      971'890'963'199; // 32767-12-31T23:59:59Z

  const std::time_t seconds = ptr_sp->GetValueAsSigned(0);
  if (seconds < chrono_timestamp_min || seconds > chrono_timestamp_max)
    stream.Printf("timestamp=%" PRId64 " s", static_cast<int64_t>(seconds));
  else {
    std::array<char, 128> str;
    std::size_t size =
        std::strftime(str.data(), str.size(), fmt, gmtime(&seconds));
    if (size == 0)
      return false;