Worked on the tianocore/edk2 repository to enhance reliability and standards compliance in embedded systems firmware. Focused on UEFI development using C, the work addressed a critical bug in TimeBaseLib by expanding the valid year range for time validation from 2000–2099 to 1900–9999, aligning the implementation with UEFI Specification v2.11. This adjustment resolved edge cases where dates outside the previous range could cause runtime errors, thereby improving robustness for firmware that depends on accurate time handling. The update ensures broader compatibility for both historical and future dates, supporting more resilient and future-proof UEFI environments across diverse hardware platforms.