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.

 

Arkansas

 
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
 
 
Littleton Colorado USA Equatorial Dial 511
The Littleton War sundial is an Erickson equatorial polar dial 6 feet in diameter made of light granite with a 3 inch steel rod as gnomon. Time is graduated by hour, half-hour, quarter hours and 5 minute marks over 24 hours. Noon is at the bottom, matching the 105 degree meridian. Designed to be read from the upper surface in Spring/Summer, from the under side in Fall/Winter. A plaque provides the Equation of Time to convert solar time to watch time. Dial is in a beautiful setting.
 
 
Lloydminster Alberta Canada Horizontal Dial 392
One of the largest horizontal dials in North America. Dial is 197 feet in diameter. It's location is on the 4th meridian at 110:0 west, a line that separates Alberta and Saskatchewan and divides the city of Lloydminister in half. (Lloydminister began as a single town in 1903, but was split in 1905 with the survey that created Alberta and Saskatchewan. The town remained divided until 1930 when by joint decree it was amalgamated back into a single city).
 
 
Logan Utah USA Analemmatic Dial 804
Work to design and make the Analemmatic Sundial was done by students of the sixth grade science class and teacher Eric Newell in 2005. The central walkway uses stepping stones sandblasted with the name of the months. John Westenskow's ceramics classes at Mount Logan Middle School made the time stones. Students surveyed and plotted the location of the stones and provided the physical labor to dig holes and pour cement.
 
 
London Ontario Canada Helioscope Dial 62
A brass Pilkington-Gibbs heliochronomer aligned to the celestial equator. Rotate the helioscope until the sun shines from the upper hole to the lower plate, then read the time from an accompanying dial. The Pilkington-Gibbs dial includes a patented cam mechanism to adjust for the Equation of Time.
 
 
Long Island New York USA Horizontal Dial 100
A bronze circular horizontal dial about 18 inches in diameter. At the edge of the dial set in concentric rings are the hour lines, half hour lines, quarter hour and five minute marks. Hours are in Roman numerals from 5am to 7pm. Has a thick brass gnomon.
 
 
Los Altos California USA Gnomonic Dial 498
A triangular entry canopy 13 feet height by 128 feet wide by 26 feet deep at the Georgina Blach Intermediate School casts a shadow on the front pavement walkway. The pavement is etched with a gnomonic projection to show the hours and seasons. The dial was created by architects Lisa Gelfand and Andrew Davis who did considerable research for the dial. Their design was submitted to the school district for approval. It's a fun sundial and the students and teachers love it.
 
 
Los Angeles California USA Sculpture Dial 309
A sundial sculpture by Martha Oathout Ayers. More information about this dial is needed.
 
 
Los Angeles California USA Equatorial Dial 77
A bronze equatorial ring dial with taut wire gnomon on concrete pedestal. Ring is inscribed with hour, ten-minute and minute lines. Plaque states the dial indicates correct watch time so observatory staff periodically rotates clamped ring to correct for EOT, longitude and DST. Dial is located adjacent to the Astronomers Monument atop which is a large bronze armillary. The monument recognizes Hipparchus, Copernicus, Galileo, Kepler, Newton and Hershel. The sundial was originally built into the base of the Astronomers Monument but was relocated a few feet to the south during the 2002-2006 remodeling to allow visitors to more closely approach the dial. The dial sits atop a concrete pedestal.
 
 
Los Angeles California USA Calendrical Dial 593
A bronze-faced meridian arc dial 18 feet long, 13.5 feet high and 7 inch wide. Displays the meridian line and is inscribed with month and day markings, seasonal and lunar indicators and constellation figures. An overhead lens projects a solar image on the inscriptions. A large adjacent symbol is positioned to indicate which set of date markings is to be read from the meridian line. In a modern twist, photoelectric sensors embedded in the face of the arc are activated by the transiting spot of sunlight and send a signal to illuminate LED indicators on the 22 foot wide stainless steel ecliptic chart overhead, lighting up the stars of the constellation through which the sun is passing.
 
 
Los Rios Santo Domingo Distrito Nacional Dominican Republic Compound Dial 903
This highly decorated monument sundial is composed of three sundials (Horizontal, Polar and Equatorial) with a common gnomon. All of the dials are built mainly of limestone. The large polar dial (wings), small horizontal dial (tail) and gnomon (body) recreate a “hummingbird”, the universal symbol for diabetes. (The hospital specializing in diabetes is only 500m away). The dials are delineated in half hours and have a variety of graphics on all three dials. In the same location, albeit separated there is another equatorial clock that is five times smaller and has a custom gnomon in the shape of the "little hummingbird”; this sundial is mounted on top of a column and has been adjusted to the local solar time. Nearby is a plaque with the equation of time.
 
 
Louisa Virginia USA Cylindrical Dial 594
An internal cylindrical dial built in a 16 foot diameter, 48 foot tall farm silo now located on a public golf course. The rim of the open top of the silo provides an elliptical shadow line on the inner wall of the silo. This is marked out with red hour lines and black date lines using the low point of the shadow on the wall as the time marker. The artwork has "three panels representing the continuity of man's perceptions of space: past, present, and future. In an abstract sense, the sundial represents the scientific, emotional, and philosophical struggles and triumphs of mankind." Contact Tanyard Country Club Golf Pro Shop at 540-967-1889 to ensure the silo door is open.
 
 
Louisbourg Nova Scotia Canada Horizontal Dial 391
A small horizontal dial 28 cm in diameter on a limestone pedestal. The dial shows local hours with half-hour lines from 4 am to 8 pm in Roman numerals. Trefoils are interspersed with the hour labels. A south-pointing crescent or moon sits across the sub-style and a representational daisy or sun sits below the center of the dial. The base is a limestone pedestal 85 cm tall. The base is a limestone pedestal 85 cm tall. The dial is located in the Fortress of Louisbourg run by the Parks of Canada. The dial is a modern reproduction of a slate dial excavated at the site.
 
 
Louisville Kentucky USA Equatorial Dial 234
Park rangers set up a 16 x 20 inch portable equatorial sundial. The dial is used for teaching a solar energy class.
 
 
Lucedale Mississippi USA Alignment Dial 820
This is a Veteran's Memorial consisting of a set of five large stainless steel panels with holes that guide sunlight to strike a memorial plaque. The alignment is designed to commemorate the signing of the armistice ending World War One, illuminating the plaque on Nov 11th at 11:00AM
 
 
Lucedale Mississippi USA Analemmatic Dial 834
This analemmatic dial (sometimes called a human sundial) is designed for children. Approximately 16 ft wide, it is constructed of red brick with steel hour marks. The numbers for standard time are large silver and the numbers for daylight saving time are smaller and black. A black steel walkway is located in the center of the dial with embossed months of the year. Children stand on the month. Their shadow marks the time. Large numbers are standard time. Small numbers are daylight saving time.
 
 
Lucedale Mississippi USA Armillary Dial 849
The armillary is constructed of stainless steel with rings approximately 34 inches in diameter. The equatorial ring is a 3-inch band with 1-inch cast bronze Arabic hour numbers showing standard time and 1/2 inch cast bronze numbers for Daylight Saving Time. The other rings are unconventional. Rather than a horizontal ring, the ring is canted to match the latitude. The solstial ring that traditionally runs completely over the N-S vertical meridian is only 3/4 complete, creating an open area from the upper portion of the equatorial band to the southern pole that allows better viewing of the equatorial time ring when standing behind the armillary. The dial can be adjusted for the equation of time by rotating the equatorial ring to align on a plate with month marks set to the equation of time plus longitude offset, allowing the sundial to tell civil time.
 
 
Lynchburg Virginia USA Horizontal Dial 627
A 48 inch diameter bronze horizontal dial on a stone pedestal. Polar gnomon includes a scroll and stylized peacock. Dial furniture includes an hour glass and eagle wings. The perimeter around the dial is inscribed, "TIME LIKE LIFE CANNOT BE RECALLED." The dial sits atop a cylindrical mortared stone pedestal.
 
 
Macedon New York USA Henge Dial 408
A cornfield maze for the summer of 2000 at Long Acre Farms. Theme called "Lost in Time" features a number of sundials. The 400 x 500 foot cornfield maze, called the "largest living sundial", is in the form of a smiling sun with 12 corn hedge "rays" from 8 am to 6 pm that align in azimuth to the hour and half hour for Labor Day, 2000. Within each hedge is a vertical pole holding an "Eye of Kala" (an annulus) 12 feet above the ground that casts a spot of light across a hedge clearing at the appointed time to a sign at ground level. At the center of the maze is a horizontal dial with a 12-foot gnomon. This gnomon forms part of the smiling sun's nose when seen from the air. Just outside the corn hinge is an analemmatic sundial for visitors to tell time before going through the hinge. In the hinge, visitors are given a small altitude card dial that tells Eastern Daylight Time from June - Oct. Admission fee.
 
 
Mackinac Michigan USA Horizontal Dial 183
ca 16 in. square Brass Roman Numerals Three stars at south end of gnomon, Roman numerals 5AM-7PM, hour lines with arrow heads. Dial sits atop a tapered white column.