Many times in a small home-based craft shop or garage it is necessary to lay out angles, and a protractor or compass is not always handy. The face of a clock contains a complete circle divided into 12 (hours). Naturally there would be 360 degrees in each hour, or six degrees in each minute. To lay out a 30 degree angle, it would simply be the angle made by the minute hand on 12 and the hour hand on one, or one o'clock. A 90-degree angle would be 3 o'clock, and so on.