Hello there internet. I have developed a fully working clock capable adding a temperature sensor all by myself. At the age of 16 this has been one of the best project i made so far. Here is a picture of it:
http://imgur.com/a/0uj8LI used an RGB LCD because it would prettier on my desk while the animation runs. This clock has a backup battery so it could run even though it is unplugged. On the next version i want to be able to play the radio, have an alarm, and make it portable.
WARNING: ONLY APPLY 5V TO THE CIRCUIT. MORE COULD BLOW IT AND LESS IT WOULD NOT WORK.
Here is the schematic, Arduino file, and the case 3D file for anyone who wants to replicate this project. There is also a pcb gerber files in the project folder but i haven't tested it myself and it doesn't include the temperature sensor ability yet.
https://drive.google.com/drive/folders/0B31WSjrLzZFPSDJZdTE5bm43cnM?usp=sharing