Leon enhanced boot-time measurement accuracy for the kubernetes/kubernetes repository by developing a feature that derives system boot time from /proc/stat, with a safe fallback to unix.Sysinfo. Using Go for backend development, Leon modularized the boot-time calculation logic to improve maintainability and support future enhancements. He implemented comprehensive unit and integration tests to ensure the computed boot time remains consistent within one second, directly addressing issues of measurement drift and unreliable startup telemetry. This work strengthened the reliability of performance dashboards across Kubernetes clusters, providing more dependable observability for system startups and contributing to the robustness of cluster monitoring infrastructure.