recently my laptop ran out of charge, and when i turned it on it beeped a few times and asked to set date in bios. but when my android phone has powered off suddenly, it successfully booted but with a nonsense date many years ago. why does a PC-laptop require setting date before booting the full OS?
Sounds like a bad CMOS battery. They are typically a small cr2032 battery cell.
Your specific model should hopefully have a technicians manual or iFixit guide you can follow to fix it. If your computer is still under warranty they can fix it for you.
That battery is responsible for the computers firmware holding onto its specific settings and can trigger various out of box and security issues unaddressed.