Pureboot - time warp or clock problem - starter

Hello, when I start my Librem 14 and want to boot qubes, Pureboot tell me that my GPG key was created in the future. I does not found a good solution for that, how can I change the time in my Bios?

The bios clock shares the main battery with the laptop. If the main battery goes completely dead than the laptop loses the time. The only way around this that I’ve found is to force an insecure boot and let the OS update the clock.