Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of North America

This is a selected listing of sundials in the North American Sundial Society Registry. Click on any dial thumbnail picture or city name to display the full dial description with additional information and images.

 

Puerto Rico

 
San Juan Puerto Rico USA Vertical Dial Dial 349
A round pillar supports a rock cube with vertical dials on all four faces. This is one of the oldest in the Americas, erected by the Spanish around 1645 during the rule of Fernando de la Riva y Aguero. The vertical dial cube was crowned with a weather vane on top. This sundial was the first to be installed in the Antilles and was probably the second sundial to be placed in the New World.
 
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