Worked on enhancing timekeeping reliability in the flipperdevices/u-boot repository by addressing critical issues in the MAX313xx and MAX31343 real-time clock drivers. Focused on embedded systems and driver development using C, the work involved fixing incorrect year calculations to support dates from 2100 to 2199 and ensuring that time set operations are immediately reflected, eliminating stale values after write. These changes improved boot stability and logging accuracy in real-time systems by guaranteeing accurate date handling and immediate feedback from RTC hardware. The contributions were delivered through targeted bug fixes, demonstrating depth in low-level driver maintenance and real-time clock management.