How To Display The System Countdown Timer In Linux Mint 20.1 Ulyssa

Linux Mint 20.1 has an option of displaying a system countdown timer on PC shutdown or when logging off.   Here is how to enable it:   Open the Linux Mint menu (Cinnamon 20.1 in this example) and choose Preferences > System Settings.   Then select General.   Over here, from under the Miscellaneous Options, select the Enable timer when logging out or shutting down option.   The default...