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.

Casper Wyoming USA Horizontal Dial 367
The horizontal dial is a bronze circle 13.4 inches in diameter with raised lines and numbers and mounted on an iron plate on a pedestal of green stone. The angle of the gnomon is roughly 20 degrees, and the hour lines are designed for a latitude of about 22 deg, clearly not designed for Casper's latitude of 43 deg N. See "Sightings" in NASS Compendium Vol. 6 No. 4, Dec 1999. Pedestal is of the same green stone as the Planetarium building.
Dummerston Vermont USA Vertical Hours to Sunset Dial 366
This 4 x 8 foot vertical dial declines 8.4? west of south and displays "Italian Hours". Located on the southern gable of a hanger along a grass strip airport (fondly called the "Dummerston International"), the dial serves to tell pilots how many hours remain before sunset. The dial is painted board with vinyl lines, letters and numerals. A sign at the base explains how to read the dial. The dial was built by Mac Oglesby and Eliot Kimble. A smaller 2 x 2 foot vertical decliner is located on the western side of the hanger building as well. It too shows Italian hours.
Westminster Vermont USA Vertical Direct E/W and Polar Dial 365
This whimsical dial looking like a cut-out face is actually an East and West Vertical dial and a Polar dial. It stands about 4 feet high, and is built out of 1 inch steel plate fabricated in Windsor VT and installed on the Westminster West School grounds on a buried concrete pier. Near noon, a beam of sunlight shining through an "ear" indicates the date.
Toronto Ontario Canada Equatorial Dial 364
The face of this equatorial dial is an arc of a sphere 2 meters in diameter. A nodus on the polar gnomon casts a shadow indicating solar declination. Aligned with the dial is a 15 meter meridian line which passes through the site of the transit instrument of the former Toronto Observatory.
Williamsburg Virginia USA Horizontal Dial 363
Bronze horizontal dial 36 inches in diameter. The sundial was constructed in memory of their beloved scoutmaster Sydney "Mike" Mitchell. The $3000 cost was donated from former scouts and friends. The Boy Scout Law is cast around the outer diameter of the sundial. Various Scouting awards that the Scoutmaster received are also cast into the sundial.
Charleston South Carolina USA Vertical Recliner Dial 361
A 20 foot stone monument with a 2 foot diameter vertical recliner dial. See the NASS Compendium Vol.6 No. 1 Dec 1998. The platform in the base includes stones from the thirty-eight home states of those lost. Imbedded in the in the platform is a bronze arrow, pointing to the unmarked grave in the Atlantic.
DeLand Illinois USA Four-dialed pillar Dial 360
Granite four-dialed pillar about 5 foot high, possibly dating from the mid 17th century. Purportedly found in 1650 in Tinturn, Monmouthshire, England, and consistent with the dial latitude of 52 N. Dial face is 18 x18 inches. Gnomons on both east and west sides are turned off its original declination. A gift from Robert H. Allerton. The dial is well-traveled, and was brought to the United States in 1890 by the John Wanamaker stores. The fascinating history of this dial can be found in NASS Compendium Vol. 6 No. 1, Dec., 1998.
Sudbury Ontario Canada Terra Globe Dial 359
A monumental dial in stainless steel. At one end of 'Polaris Boulevard' which includes Terra, a segment of the globe oriented with Sudbury directly at the top. Celeste is a giant (12.8 meter or 42-foot) stainless steel sundial located at the south end of Polaris Boulevard. It consists of two arches, one which represents the equator in the sky, and one which represents the meridian, or the line from the North Pole to South Pole. A large steel pipe makes up the gnomon of the sundial.
Burmingham Pennsylvania USA Armillary Dial 358
An armillary dial in poor shape.
Columbus Ohio USA Sculpture Dial 357
"Hora Novem" An unusual 'solar calendar water sculpture' incorporating water jets which converge at center of a 17ft equatorial ring.
Durham North Carolina USA Sculpture Dial 356
"Gnomon", a large sculpture consisting of two monoliths made of steel-reinforced concrete slabs. Includes a noon indication.
Flemington New Jersey USA Horizontal Dial 355
Horizontal dial with an intricately hand cut stainless steel gnomon with a cast bronze dial face. The shadow casting style is the lower edge of the large gnomon. A second short gnomon indicates solstice and equinox dates. Dial sits atop a 700 lb stone pedestal base.
St. Louis Missouri USA Horizontal Dial 354
A horizontal dial sculpture called "Child Sundial" depicts a daydreaming child figure playing with a sundial gnomon that is part of a working sundial. The gnomon is about 5 1/2 inches high and the hour lines are adjusted to show standard time in St. Louis. The sculpture and dial are at ground level surrounded by a bed of creeping thyme, perhaps a gentle Herb garden pun. Statue constructed of lead, 12 x 21 inches
Augusta Georgia USA Analemmatic Dial 353
An analemmatic dial in brick and stone.
Little Rock Arkansas USA Horizontal Dial 352
The Arkansas Sesquicentennial Sundial. Monumental horizontal dial in a 40 ft square patio made of stones from significant sites of the world. The gnomon is 17 feet high by 21.5 ft. long. The sundial won First Place in the International Bricklayers & Allied Craftsmens Union - presented every 5 years. It featured an outer adornment of brick contributed from over 70 nations. SUNDIAL WAS DESTROYED and no longer exists - Apr 2002
Enid Oklahoma USA Equatorial Dial 351
A striking stainless steel equatorial dial 6 ft tall, 4 ft wide, and 6 ft deep. The equatorial ring is more than 2 ft wide. The dial can be used as a simple equatorial dial, reading the hour from a shadow cast by the steel wire gnomon aligned to the polar axis. However a bead nodus located in the middle of the wire casts its shadow onto the equatorial ring as well. An analemma on an arched plate is set to slide along the equatorial ring in a track. By sliding the plate to a position where the nodus shadow falls on the analemma for the day of year, the dial corrects for the Eot. Markers on the analemma plate point to the correct time at the edge of the ring. The top of the ring is inscribed for Central Standard Time and the bottom is inscribed for Central Daylight Time. Overall, the sundial is accurate to about a minute any day of the year. The analemma was computed by Lt Col Bill Welker, USAF and the dial was funded by McCasland Foundation.
Banica Dominican Republic Pillar Dial 350
A small pillar dial with a vertical dial on one face. The dial markings sit below a triangular crown inscribed with the date MDCCVC, showing 1795 as the year it was carved. Today, the bottom portion of the pillar appears to be reconstructed and the gnomon is missing.
San Juan Puerto Rico USA Vertical 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.
Santo Domingo Dominican Republic Pillar Dial 348
At the upper end of a tapering pillar is a rock cube with vertical dials on two faces. The dial was erected during the administration of Francisco Rubio y Pernaranda around 1753 in front of the Governor's Palace and was used during the centuries of Spanish rule as the official marker of time. An equatorial dial was placed on top of the cube probably around 1787 and was later broken off by a hurricane. In 1992, as part of the Fifth Centennial Discovery activities, the equatorial dial was reinstalled on top. Dial sits atop a mortar or rock block.
Salt Lake City Utah USA Azimuth Dial 347
A 24 foot tall azimuth dial in a complex sculpture comprising a light projection gnomon within a 36 foot diameter base with numerous additional shadow-casting structures. The "Asteroid Landed Softly" sundial sculpture was created in 1993 by architect Kazuo Matsubayashi. The sculpture symbolizes the concepts of space and time: space as a large boulder (asteroid) sitting on a square pedestal; and, time as an azimuth sundial that shows the path of the sun through the day and seasons.