Hi bolla67, I am Paulo and I'd like to help.
Sorry, I believe this can't be done since the lock screen is designed to have the clock/date. However, you can disable the lock screen and just jump in straight to your login instead if that's what you prefer.
https://www.elevenforum.com/t/enable-or-disable...
(Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.)