10 minute timer UPDATED!

this is a redstone timer i made. it goes for 10 minutes, has a screen to show how much time has passed and a bunch of extra redstone things.
Inthis update i have completely changed it, so it is faster, sleeker and has more numbers. It also includes an override button!
i have fixed up some mistakes i made with the redstone, so i think this version will work perfectly. Please leave a comment!