For this clock you will need :
- 1 observer
- 1 dispenser
- 1 water bucket
- 1 piece of redstone
- 1 block (any block you want)
- 6 signs (also you can replace the signs with any block you want)
- 1 lever
*To turn it on, turn the lever on and off as fast as u can.
* To turn it off, turn the lever on.

*To load the schematic you will need world edit.
%appdata& > .minecraft > config > worldedit > schematics > paste the "MaximeSkillZClock.schematic" file here.
/schematic load schematic MaximeSkillZClock, and then //paste while you are facing South ingame.