Install sunclock-maps by entering the following commands in the terminal:
sudo apt update sudo apt install sunclock-maps
Description:
sunclock vector graphic maps
sunclock is an X11 application that displays a map of the Earth and indicates the illuminated portion of the globe by drawing sunlit areas dark on light, night areas as light on dark. In addition to providing local time for the default timezone, it also displays GMT time, legal and solar time of major cities, their latitude and longitude, and the mutual distances of arbitrary locations on Earth. . This package contains the vector graphic earthmaps.
Homepage: https://github.com/mdoege/Sunclock
Version: 3.57-8
Section: universe/x11