Sundials - World's Oldest Clocks

North American Sundial Society

Sundials of North America

This is a complete listing of sundials in the North American Sundial Society Registry. Click on any dial thumbnail picture or city name to display our complete listing and images. To see sundials in a particular state or province, you may click on the list at left to see all registered sundials in that state, province or country (at bottom) displayed in city order.

 
 
Ottawa Ontario Canada Horizontal Dial 10
A bronze 12 inch diameter horizontal dial with hour lines from 4 AM to 8 PM and engraved Roman hour numerals and compass rose. This restoration was donated by Thomas Ritchie who remembered from his youth that the original dial was accidentally destroyed during the construction of the Parliament Library in 1872. The restored dial was unveiled May 19, 1921 by the Governor General, Sir Victor Cavendish, Duke of Devonshire.Dial sits atop light granite pillar approximately 18 inches diameter and 40 inches high.
 
 
Tempe Arizona USA Horizontal Dial 9
A 17 inch diameter bronze horizontal dial, mounted in a metal collar that slopes 5 deg S to correct for Tempe latitude of 33 N. The dial face has radiating hour, half-hour and 15-minute lines, encircled by the inscription "Grow old along with me. The best is yet to be." On the outside of the inscription are Roman numerals from VI to VI. Filling out the outer circle is inscribed "Tempe Garden Club". The dial sits on top of a square pedestal approximately 2 feet high
 
 
Sun City Arizona USA Horizontal Dial 8
A monumental horizontal dial in a gravel rock garden. Gnomon is 22 feet high, 40 feet long built from a structural steel "I" beam 64 feet long. Gnomon is supported by three concrete triangular legs and is encased in concrete with four shadow-casting style edges. A circular concrete walkway under the gnomon has painted Roman numeral hour markers. This dial had significantly deteriorated and was in danger of demolition in 2011 when rescued by the efforts of Sun City residents, numerous Sundial Mail List letters explaining its significance and, particularly, an advocacy letter by NASS member Roger Bailey. NASS member John Carmichael was instrumental in coordinating these efforts, which led to complete restoration and re-dedication in October, 2011. The dial was a center piece of the innovative Sun City planned community, built in the early 1970's by visionary developer John Meeker.
 
 
Phoenix Arizona USA Horizontal Dial 7
This large ground-level horizontal dial designed by Charles Keener. Dial is a circular concrete slab 62 in. diameter and 8 in. thick. The gnomon is 30 in. high, 41 in. substile, 55 in. stile. Dial has Roman numerals. Unfortunately, the 6AM and 8AM numerals are missing. Ground level dial composed of concrete slab 62 inch diameter and 8 inch thick.
 
 
Oracle Arizona USA Horizontal Dial 6
A brightly colored horizontal dial 4 feet in diameter. Dial is white ceramic with tile edging. Hour lines are bright arrows, adjusted for local longitude. At the north point is a graph of the Equation of Time and at the south point is the bright face of a sun. Ringing the dial is an inscription. Base is a concrete "flower" approximately 2 feet high. Near by is an approximately 15 foot long Noon Mark or Meridian Line with the months of the year marked on it. The shadow is cast by a small electric power pole.
 
 
Westbury New York USA Polyhedral Dial 5
An old polyhedral dial set atop a tall stone column on the grounds of Old Westbury Gardens. Old Westbury Gardens is the former estate of John Shaffer Phipps, heir to a U.S. Steel fortune. Built in 1906, this garden is an example of period landscape design, with formal gardens and landscaped grounds on a 200 acre site. The gardens and mansion are open to the public but there is an admission fee. It is reported there are other sundials within the grounds.
 
 
Tucson Arizona USA Equatorial Dial 4
A bronze equatorial dial approximately 2 ft. in diameter designed by R. Newton Mayall. Mayall stated, "When I was asked to design the sundial in front of the Museum at Kitt Peak I was more than pleased, for it gave me a chance to work a semblance of astronomy into it. The design reflects the great telescope nearby, with its base and fork type mounting, the dial itself being the "telescope"." The dial surface is a half-cylinder whose inner surface has seven date lines and 15 minute apparent solar timelines. A thin rod supports a 1/4 inch spherical nodus in the middle of the sundial directly above the point where the 12 noon line crosses the equinox line. The shadow of the nodus tells both the apparent solar time and the date. The dial is in fair condition, with the brass gnomon rod and nodus sagging, giving rise to a noticeable error in time and date readings. There is a separate plaque in front of the dial that gives instructions for obtaining standard time using a table of the Equation of Time corrected for the dial longitude.
 
 
Flagstaff Arizona USA Horizontal Dial 3
Built by Dr. Art Adel (now deceased). Contact Mrs. Adel to arrange viewing.
 
 
Flagstaff Arizona USA Horizontal Dial 2
Small horizontal dial on carved pedestal. It was a gift from the observatory staff to Dr. Lowell. In a thank you note to his staff, Lowell stated, "Nothing could have pleased me more than that Sundial clothed with its mountain cloak, symbolic of when the sun always shines. It shall be inscribed with all your names and set up on the top of Mars Hill." A square stone base supports a tapering cylindrical column. At the top is a square plinth supporting the small horizontal dial. As of March 1996, the dial has resided inside the observatory building.
 
 
Carefree Arizona USA Horizontal Dial 1
A 90 ft. diameter horizontal dial with a large reflecting pool beneath the gnomon designed by John Yellott. The hour markers are 4 ft. diameter concrete circles. The dial is designed to show solar time corrected for the time zone offset. Thus the hour markers have been moved ahead of the solar time position. The hour lines are separated by alternating dark and light colored stones. The gnomon itself is 4 ft. wide, 62 ft. long and the tip is 35 ft. high. A pilot dial at a scale of 1/4 in. =1ft. is at the South end of the large dial. It is constructed of gold-anodized aluminum with time lines at 10 minute intervals. An equation of time plaque is nearby. The upper surface of the dial formerly served as a solar water heater to provide hot water to the city's first office building. Numerals face outward, so that they are more easily read by viewers.