Worked on stabilizing timekeeping within the momo5502/emulator repository, focusing on improving determinism and reliability for time-dependent logic and tests. Addressed a system time adjustment issue by configuring kusd.BaselineSystemTimeQpc to UINT64_MAX, ensuring that std::chrono::system_clock::now() accurately reflects system time and reducing clock drift across various scenarios. This fix prevented unintended changes to the host clock, resulting in more reliable performance assessments and consistent test outcomes. The work involved a single, well-documented change with minimal surface area, utilizing C++ and leveraging expertise in emulator development, system programming, and Windows internals to enhance emulator accuracy and maintainability.