In this tutorial, we learn how to use the world clock feature in Ubuntu. First, you will go to the upper right hand side of the screen and click on the calendar. From here, click where it says "locations". Then, click on where it says "edit and then click from the preferences where it asks for a location name. Then you can click on the time zone drop down menu and see the times of a ton of different places. Add these to your clock and then when you're finished, you can have the weather displayed as well! Save your settings and you're done.