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.

 
 
Tucson Arizona USA Projection Dial 735
A fused silica glass spherical lens projects a solar image spot onto the inner surface of a spherical segment of glass with a frosted area inscribed with hour lines and Arabic hour numerals. Time is read from the bright spot of light on the frosted surface while standing under the dial. Dial is mounted atop a pipe pillar on the patio of the Visitor Center.
 
 
Carlsbad California USA Vertical Dial 734
A large vertical dial on an east-declining south stucco wall of an elevator tower in the parking lot of McClellan Airport. The gnomon, hour and declination lines and Arabic numerals are stainless steel. The dial design is flawed, incorrect for either a point-in-space nodus dial or a polar-inclined gnomon dial. The installed gnomon is horizontal but if intended to support only a nodus, the location is wrong; the nodus shadow is outside the lower declination line in the photos. The hour lines radiate from the gnomon base as for a polar-inclined gnomon; they should radiate from a point much higher if for a point-in-space nodus.
 
 
Kalamazoo Michigan USA Combination Dial 733
A combination horizontal, vertical, polar and equatorial dial 4 x 5 x 6 foot tall made of drilled aluminum plate with rod gnomon. The vertical plate shows the EOT graph and depiction of Earth showing polar tilt, celestial equator and Earth equator using drilled holes. The bottom plate below the equatorial face includes a compass rose that also shows the direction of sunrise and sunset at the solstices. All dial faces are marked using Arabic numerals with hour and 15 minute marks. The Kalamazoo Nature Center is open most days and charges an admission fee.
 
 
Atlantic Beach Florida USA Polar Dial 732
A 12 x 12 inch polar dial of printed plastic. Unlike the typical polar dial, this dial uses point-in-space or nodus gnomons. The dial face is aligned in the polar plane; separate face markings and gnomons show summer-to-winter and winter-to-summer hour and date lines corrected for EOT and longitude. Time and date are read from the shadow of only the tip end of each gnomon rod. The three foot high PVC dial support allows the face to be rotated about the polar axis; the face is pointed at the local meridian for ST and rotated 15? east to set for DST. The face has hour lines for 8 AM to 4 PM and date lines for each month. The hour and date lines were designed for the dial location, median solar declination and the equation of time over a leap year cycle, atmospheric refraction and shadow shortening due to the 90? included angle conical gnomon points. The dial is accurate within two minutes. Dial face is marked with location, coordinates and designer name. This dial is located within Fleet Landing, a gated retirement community. Please contact Russell Boyd, the dial owner/designer at 904-241-8544 to arrange visiting the dial.
 
 
Asheville North Carolina USA Analemmatic Dial 731
A 16 foot major axis analemmatic dial with stained concrete, hand painted date line. Hemlock branch hour posts were cut by Estate foresters and use iron numerals hand-forged by the Estate blacksmith. The Biltmore Estate was constructed by George Washington Vanderbilt II from 1889 to 1895 and is the largest privately owned home in the United States. The home currently sits on over 8,000 acres and includes many acres of formal gardens, a winery, working farm, hotel and several restaurants. The Estate is open to visitors with purchase of admission.
 
 
Stouffville Ontario Canada Vertical Dial 730
A 46 inch wide by 52 inch high south-facing vertical dial of high density urethane with a 10 mm diameter stainless steel gnomon. Dial face has hour lines with half-hour marks and Roman numerals. Hour lines are longitude corrected. A brass plaque containing the dedication, additional information about reading the dial and an equation of time table is mounted on the building wall below the dial. An informative booklet about church sundials is available in the church.
 
 
Madison Wisconsin USA Horizontal Dial 729
An octagonal limestone horizontal dial with bronze gnomon. Hour lines are hand chiseled with no hour numerals. The noon line includes an inset bronze triangle. Viewing the dial within the garden requires an admission fee.
 
 
Bloomington Indiana USA Vertical Dial 728
An approximately 4 foot square, limestone south-facing vertical dial with a bronze gnomon. Dial face has hour lines and half-hour marks with Arabic numerals. Tall trees shade the dial most of the day.
 
 
Niceville Florida USA Analemmatic Dial 727
An interactive analemmatic dial with 6x3 meter major and minor ellipse axes and built of precast concrete, tiles and glass with Roman hour numerals. Dial face markings include Ante Meridiem, Post Meridiem, astronomical symbols for days of week and constellations of the zodiac, compass rose, Sun face, Ursa Major bear constellation with Big Dipper asterism, Polaris solar cell visible at night beneath the noon mark, artistic analemma and artist inscription. Inspired by the analemmatic dial "Keppel Henge" located at Georgian Bay, Ontario, Canada, the dial was two years in design and construction, with financial support from Ms. Dotty Blacker of Valparaiso, Florida and the NWFSC Foundation. Dial accessories include 8 and 12 foot gnomon poles with leveling clinometers allowing the dial to be used with precision for demonstration and instruction. The dial is a focal point for geoscience instruction both in the classroom and the local community. The Science Department at NWFSC offers many courses in the geosciences that benefit from the dial, including Earth Science, Physical Science, Physical Geology, Oceanography, and Astronomy; supports baccalaureate programs in Elementary and Middle School Math & Science Education; and is frequent host to a local astronomy club.
 
 
San Ramon California USA Bow-String Equatorial Dial 726
This 5 x 5 x 6.5 foot stainless steel bow-string equatorial sundial is a precise heliochronometer with internal cam mechanism to correct for the Equation of Time. This exceptional dial is made of welded stainless steel sheet and weighs 330 pounds according to the designer Lee Palmer Stephenson. The dial face of the 60 inch diameter equatorial ring is marked with hour, half-hour, 15 minute, 5 minute and one minute lines and Arabic hour numerals showing PST and PDT.
 
 
Cambridge Massachusetts USA Polar Dial 725
A small polar dial with Arabic numerals for EST and EDST
 
 
Jamestown Virginia USA Horizontal Dial 724
A 15 inch octagonal bronze horizontal dial with a bronze gnomon. Dial face shows hour, half-hour, quarter-hour and 5-inute marks with Roman hour numerals. The gnomon is damaged and analysis shows the dial hour lines are laid out for approximately 45° latitude instead of the local 37° latitude. The dial is on a white granite pillar.
 
 
Albuquerque New Mexico USA Calendrical Dial 723
An 8x36 inch polar noon meridian dial of wood and steel pipe. The dial face is inclined at the latitude angle and the shadow-casting 36-inch gnomon pole is perpendicular to the dial face, pointing at the local meridian on the celestial equator. The gnomon pole shadow shows the declination of the sun, with the shadow extending below the gnomon in spring and summer, and above the gnomon in fall and winter. Short rods at the tip of the gnomon cast a cross-shaped shadow on the dial face, marking the date on the nail head analemma on the dial face. At local noon the gnomon shadow is vertical; the face and gnomon size are selected to allow the shadow to always fall on the dial face at noon throughout the year. On the equinoxes, the cross shadow bisects the gnomon base. This dial is on private property but may be seen from the public sidewalk. For closer inspection, the owner may be contacted.
 
 
Kearney Nebraska USA Horizontal Dial 722
A 32 inch diameter bicolored Coconino sandstone horizontal dial with hour, half and quarter hour marks and Arabic hour numerals showing DST with longitude correction. The large noon gap is marked, High Noon. Dial face has carved time ribbon with inlayed brass balls on quarter hours. Gnomon sides show carved sunface and moonface. Dial is placed on a cast concrete pedestal approximately 20 inches high.
 
 
Punta Gorda Florida USA Horizontal Dial 721
A monumental sculpture of steel and stone including a 12 foot diameter horizontal dial with six foot high gnomon. Stone dial face includes hour markers and Roman hour numerals. Titled Spirit of Punta Gorda, the sculpture is dedicated to the spirit of the people of Punta Gorda in the aftermath of Hurricane Charlie on August 13, 2004. Two nearby bronze plaques identify and dedicate the sculpture.
 
 
Youngstown Ohio USA Equatorial Dial 720
A nearly 10 foot high steel equatorial dial with a 30 inch diameter stainless steel hour ring including cut-out diamonds for hour and half-hour marks and Roman hour numerals. The hour ring can be adjusted for EST or EDST and can be set to include longitude correction. The mild steel sculpture has naturally weathered. Located outside the YSU Ward Beecher Planetarium, the dial is dedicated to the memory of Richard Pirko, long-time planetarium engineer and show producer, whose dream was to have a sundial outside the planetarium. A nearby bronze plaque dedicates the dial.
 
 
Burlington Vermont USA Equatorial Dial 719
A 6-1/2 foot tall, 4 foot diameter helical cylinder equatorial dial of self-weathering COR-TEN steel plate. The 2 foot long beveled edges of the two ends of the helix serve as gnomons, casting shadows for standard time and daylight saving time onto the interior surface. Time is indicated by the dominant shadow, top in summer and bottom in winter. Hour marks are shallow bored holes in the interior surface; no numerals are present but the noon mark is indicated by two small adjacent holes. The helical curved edges allow shadows to fall on the interior surface throughout the year as solar declination varies. An adjacent bronze plaque describes the dial and gives an EOT and longitude correction graph. Dial is supported by a curved COR-TEN steel plate allowing some springy motion.
 
 
Charleston South Carolina USA Horizontal Dial 718
A weathered 10 by 15 inch oval marble horizontal dial with bronze gnomon. Dial face has hour lines with Roman numerals showing standard time. Dial sits atop a concrete pedestal with two steps at base. Pedestal has insets on faces, one of which carries a marble plaque with barely readable inscription.
 
 
Havana Havana Cuba Vertical Dial 717
A carved stone, south-facing vertical dial with polar-pointing gnomon, hour lines and Roman hour numerals. The construction date of 1817 is prominently shown at the top of the dial. This is a historic Cuban sundial, known at the "dean of Cuban sundials" and referenced in "This is Cuba, Things of My Country."
 
 
Kelowna British Columbia Canada Equatorial Dial 716
An approximately 18 inch diameter equatorial dial of brushed aluminum and stainless steel with painted steel equatorial and meridian supports. Hour lines and Arabic hour numerals are marked on dial face and a bow string gnomon is tensioned by the meridian arc, which is adjustable for latitude and provided with a marked scale. Meridian arc is supported on a 3-inch diameter steel pole fixed in concrete.