Through the last four millennia, sundials have traditionally measured sun time. However, as we now have become to rely on clocks, these old-fashioned sundials seem to most both unreliable and outdated. Fascinating enough, the Skamania sundial measures clock time and in fact can be used to set a wristwatch.
The Skamania sundial has a device that casts a shadow of changing width as the year progresses through the seasons. The view reads the edge of the shadow rather than its center. The fiberglass device that casts the shadow is called a gnomon and its "figure eight" of "bowling pin" shape is known as an analemma. The bronze plaque on the south side of the sundial tells which side of the shadow gives the correct time at any particular date in the year. The gnomon is mounted on a steel rod that is positioned at 45.7 degrees (local latitude) from horizontal in a north-south direction. It is exactly parallel to the earth's axis and therefore points to the north celestial pole. At night one can sight upward along this axis and discover the north star, Polaris.
The time of day is shown in both Standard and Daylight times on a semicircular steel scale six feet in diameter. The scale is perpendicular to the gnomon axis and therefore parallel to the earth's equator; so the sundial is like a miniature earch, turning once a day and always aimed at the same point, celestial north.