Install gnome-tweaks and in it there is a setting to show the day/date along with the time in the top bar. To install, do:
sudo apt install gnome-tweak-tool
After the install, when you run tweaks, you will see on the far left column "Top Bar". Click on that and you'll see the options on the rigth. Turn the one "ON" under clock where it says "Date".
I've found 2 ways to do this.
from the command line
or
Install gnome-tweaks and in it there is a setting to show the day/date along with the time in the top bar. To install, do:
After the install, when you run tweaks, you will see on the far left column "Top Bar". Click on that and you'll see the options on the rigth. Turn the one "ON" under clock where it says "Date".