Install gnome-calendar by entering the following commands in the terminal:
sudo apt update sudo apt install gnome-calendar
Description:
Calendar application for GNOME
GNOME Calendar is a simple and beautiful calendar application designed to perfectly fit the GNOME desktop. By reusing the components which the GNOME desktop is build on, Calendar nicely integrates with the GNOME ecosystem.
Homepage: https://wiki.gnome.org/Apps/Calendar
Version: 3.28.1-1ubuntu2
Section: gnome