Extra Clock is a desktop clock that can decorate a desktop. It can be analog or digital and can change appearance by changing the color or image background. Regarding the latter, you just have to import an image from your hard drive. Besides, you can also adjust its transparency and size according to your preferences. Extra Clock is also equipped with an audible alarm. For this, it can handle any WAV or MP3 file on your computer. Finally, it can display the current date and include a customizable calendar.