The sun always rises in the east and sets in the west, but not exactly due east or due west. In the northern hemisphere, the sun will be due south when at its highest point in the sky, or when an object casts no discernible shadow. In the southern hemisphere, this same noonday sun will mark due north. In the northern hemisphere, shadows will move clockwise. Shadows will move counterclockwise in the southern hemisphere. With practice, you can use shadows to determine both direction and time of day.
