I could, but it would be highly unnecessary as now hoppers being implemented into the game add very easy customizable timers. Look up "hopper timer". You can create a schematic from this world save if you would still prefer.

A redstone Tick is 0.1 seconds, so my design runs a 6 second clock(60 redstone ticks), and every time that clock reaches a certain point(every 6 seconds) it deactivates the repeaters locking the other ones and lets the pulse move down one more. It does this 10 times, ultimately making a whole 60 seconds, or 600 ticks (: