Computer Clock Losing Time Symptom Verification

To confirm this issue, observe if the system time resets to a default manufacturer date such as 1970, 1980, or 1990 upon a cold boot, or if the clock consistently drifts significantly while the machine is powered off. Check the system time directly within the BIOS/UEFI interface; if the discrepancy exists here before the operating system loads, the issue is confirmed as a hardware-level timing failure.