How to Build a Stone Sundial Clock

Make a sundial using basic hardware supplies.

Before the invention of modern clocks and watches, people used sundials to tell the time of day. You can recreate a sundial using natural materials found at any craft or hardware store, such as stones. Place a stone sundial into your garden or yard as a decorative accent piece that is also useful. Basic stone sundials can be constructed using minimal experience and crafting exposure, making it a project that can be accomplished by people with differing abilities.

Things You'll Need

• Stones
• Compass
• Coarse grout
• Trowel
• Masonry stone sealant
• Paintbrush
• Waterproof latex paint

Instructions

1. Place a large stone measuring 4 inches thick and 36 inches in diameter flat onto the lawn. The stone does not need to be perfectly round, and can display imperfections and cracks. This is the base stone of the sundial.

2. Use a compass to determine the magnetic north, then mark that direction on the base stone using a piece of chalk.

3. Select a triangular stone that measures 15 inches on all sides. Spread coarse grout along one edge of the triangular stone, then press the stone onto the base stone at the chalk mark.

4. Position the triangular stone so that one tip of it rests at the center of the base stone, and one of the other tips rests near the edge of the base stone. Allow the grout to dry for 18 hours.

5. Paint a layer of masonry stone sealant around the grout using a paintbrush. This will protect the stone sundial from premature deterioration.

6. Mark the hours onto the stone sundial using waterproof latex paint.

Tips & Warnings

• Apply sealant in a well-ventilated area.

References

• Mother Earth News: Sundial