During June 2026, contributed to the esrlabs/openbsw repository by developing a high-resolution microsecond time retrieval feature for POSIX systems. This work introduced a 64-bit microsecond timestamp function, enabling precise timing measurements essential for profiling, latency analysis, and timing-based decision-making in performance-sensitive applications. The implementation leveraged C++ and C, utilizing POSIX time APIs and 64-bit arithmetic to ensure accuracy and compatibility across platforms. By integrating the new timing API with existing utilities, the contribution improved benchmarking accuracy and observability. The approach demonstrated a focus on clean API design and performance-oriented development practices within embedded systems and system programming contexts.