If you are getting bored of your current clock why not have a shot at making your own? Barzok has put together a great tutorial explaining how you can use a number of small LED matrix to build your own very professional looking clock. Although the time display looks fabulous, it is the Arduino and real time clock module found inside which are responsible for ensuring the correct time is displayed. If you like the look of this project check out the following link to find out more.
If you are looking for a real-time clock module to complete this project (or any other project which requires precise timing) checkout our Maxim DS3232 real-time clock IC module:
Apart from keeping accurate time for years due to the temperature-controlled oscillator and having a tiny coin-cell for backup, it is very simple to connect to your Arduino project. A driver library allows your program to easily set or read the time and date. Perfect for clock projects, dataloggers or anything that needs to know the date and time. For more information, check out the module page.