Geeks agree that the binary clock is one of the best gifts they can get from you. If you have a friend who loves to use their brain power the binary clock gives them a chance to do so. This clock is very hard to figure out as it uses binary code to tell you the time; however your friend who is a computer geek will know how to read the time on this clock and will be awful proud to tell you about it. This is a pretty great gift to give your favorite math genius who wants something new and spectacular as a gift.