Place the sun where you would think it should be in order to cast the shadow on the sundial.

Unit 3F - Light and shadows

A Sundial can be used to tell the time of day by the shadow a needle makes in sunlight.

At midday the Sun is at its highest point in the sky. This is when the shadow will point to 12 on the dial.

Sundials have been in use for many centuries. Even some of the great henges (like Stonehenge) are thought to be giant clocks or calandars that use the position of the sun or stars to tell the time or the season.

Sundials rely on the sun, so they are not that reliable, especially as you geat nearer to the poles.