Abstract: A horizontal sundial (1) that can be used to find standard time accurately and be manufactured on a commercial basis for any specific location, incorporating a gnomonic projection map (1M), a wire gnomon (1a) to indicate the time on a scale (1b), and the point of noon on the map (1c), and a bead (1d) located directly above the center of the dial for indicating the Sun's overhead position on the map (1e), and marking special occasions and special dates.