ing("en-AU", {
          timeZone: "Australia/Brisbane",
          year: "numeric",
          month: "long",
          day: "numeric",
          hour: "2-digit",
          minute: "2-digit",
          second: "2-digit",
          hour12: false,
        });

        document.getElementById("timestamp").textContent = brisbaneTime;

        // Use lastDataTimestamp for the "Last Reading" display
        if (lastDataTimestamp) {
          document.getElementById("last-updated").textContent =
            formatR