It would appear you are using one of those clocks with the time marked off in hours. May I suggest a "Kayak Bulider's Clock". These can be quite difficult to find, but save valuble time otherwise wasted looking at the clock. These clocks have only two time marks, one when the sun comes up (time to go to work on the kayak) and one when the sun goes down (time to dream about working on the kayak). Hopes this resolves your time issues and happy building.