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.

 
 
Big Bay Ontario Canada Analemmatic Dial 467
This is a nicely constructed analemmatic dial, made of concrete, stone and ceramic tile. The hour markers are a series of small posts set in a continuous elliptical path with a 6 meter major axis and 4 meter minor axis. The sundial is located in a field next to a megalithic henge at Keppel Croft Farm and Gardens.
 
 
Thunder Bay Ontario Canada Analemmatic Dial 466
A very well constructed analemmatic dial about 24 by 11 feet. The dial may be difficult to find, since it is in the center of a field that is devoted to wild grass of the area. Cement markers are used to show the hours and for the central base showing the months where to stand. The hourly markers are corrected for the longitude of Thunder Bay. The site is visited quite frequently by school children and is a great educational tool for dialing.
 
 
Tucson Arizona USA Horizontal Dial 465
A simple square horizontal dial 20 x 20 inches carved in a 3 inch block of granite with a bronze gnomon. The dial has hour lines from 6am to 6pm for local solar time. No graph or table for longitude and Equation of Time corrections. Dial sits atop a 3 foot square pedestal.
 
 
Tucson Arizona USA Horizontal Dial 464
A horizontal sundial 45 x 61 inches with a monofilar brass cable gnomon and tension counterweight. This is the largest horizontal sundial in the US carved on a single piece of stone, taking two years to build. The dial has hour lines from 5am to 8pm, corrected for longitude. Each hour line has an analemma and in the lower right of the dial is a graph of the Equation of Time. A nodus on the wire gnomon indicates date, with declension lines for summer and winter solstice, equinox, and date lines. Time and direction of sunrise and sunset are marked on the equinox and solstice lines. At the base of the gnomon is a 16-point compass rose. On the left side of the dial is a table for telling time by moon shadows. In the center is a copy of the hands from "The Creation" by Michelangelo.
 
 
Ithaca New York USA Horizontal Dial 463
A horizontal sundial made from a slab of stone approximately 18 x 24 inches. The hour markings are inscribed in the form of an arrow pointing to the 12 o'clock hour. The gnomon is a thin blade. The dial was made in 1976 by Michael Sweeney. In keeping with the herb garden's design, Sweeney used native materials of stone for the dial and pedestal. The dial base is a prized antique millstone from a nearby village.
 
 
Bethesda Maryland USA Horizontal Dial 462
A simple but elegant horizontal bronze dial approximately 18 inches in diameter. Design is a standard design used at U.S. Naval Hospitals. Has plain raised hour lines and half-hour lines with Arabic numerals. The dial tells time from 6 AM to 6 PM. The accompanying plaque reads, "This sundial stood on the grounds of the Old Naval Hospital at Hospital Point Pearl Harbor, Hawaii during the Japanese attack of 7 December 1941. The dial is inclined to accommodate the latitude of Bethesda, MD. The dial sets on a simple cylindrical pillar.
 
 
Bethesda Maryland USA Horizontal Dial 461
A simple but elegant horizontal bronze dial approximately 18 inches in diameter. Design is a standard design used at U.S. Naval Hospitals. Has plain raised hour lines and half-hour lines with Arabic numerals. The dial tells time from 6 AM to 6 PM. The accompanying plaque reads, "Cast especially for the Naval Hospital at Brooklyn, New York. This bronze sundial stood on the grounds from 1924 until the hospital was disestablished in June 1948?" The dial is reclined by two degrees to accommodate the latitude of Bethesda, MD. The dial sets on a simple cylindrical pillar.
 
 
Newark Ohio USA Analemmatic Dial 460
An analemmatic dial with stone markers for the hours
 
 
Tenango de Doria Hidalgo Mexico Vertical Reclining Dial 459
A very striking vertical reclining dial 85 x 115 cm created from hand painted tiles, each individually fired in a kiln and assembled at Tenango de Doria by David Canyedo. In addition to hour lines, the dial includes declination lines for the solstices and equinox. The dial includes constellation maps of both the northern and southern hemispheres, a celestial sphere, and rose of winds (compass). The artistry also includes NAHUI OLLIN (the fifth sun which is the era we are living in according to the Aztecs). The dial has an equation of time that allows conversion from local solar time to standard time. The dial was designed to arouse interest of high school students in astronomy.
 
 
Bullhead City Arizona USA Horizontal Monofilar Dial 458
This horizontal dial is an engraved flagstone approximately 42 inches in diameter designed by John Carmichael. The monofilar gnomon is a stranded brass cable that extends upward to a height of 18 inches and is held taught by a rock counterweight. Hour lines and direction of sunrise and sunset for the equinoxes and solstices are given. Also has noon Mark, The Equation of time, and a 32-point Compass Rosette
 
 
Casa Grande Arizona USA Horizontal Monofilar Dial 457
This horizontal dial is an engraved flagstone approximately 40 inches in diameter designed by John Carmichael. The monofilar gnomon is a stranded brass cable that extends upward to a height of 15 inches and is held taught by a rock counterweight. The engraved stone shows time marks to 5 minutes, corrected for longitude. Time and direction of sunrise and sunset for the equinoxes and solstices are also given.
 
 
Tucson Arizona USA Vertical Dial 456
This is a 10 x 10 foot south vertical wall dial with hour lines painted on the wall that are corrected for longitude. A unique feature of this dial is the time scale can be rotated forward or back slightly to compensate for the Equation of Time. However, because only the hours are marked, precise minute reading is difficult. Welded steel was used to make the time marker ring and gnomon.
 
 
Halifax Nova Scotia Canada Horizontal Dial 455
This bronze horizontal dial is approximately 25 cm across on a one-meter high pedestal. Both the dial and dedication plate have a blue-green patina. The gnomon is slightly bent and appears to have been re-attached to the dial. The orientation remains true. Roman numerals mark the hours from 5 am to 7 pm. Hour lines plus half-hour marks. The concrete base is badly cracked and small pieces have fallen away. The dial is well-situated in an open area, but a nearby tree might shade the dial near midday during fall, winter, and spring.
 
 
Juneau Alaska USA Analemmatic Dial 454
Painted on a downtown sidewalk is an analemmatic sundial for public use. The 25 x 20 foot sundial was organized as a community project. Eden Orelove, niece of designer Michael Orelove said, "We wanted to get as many school classes and local volunteer organizations involved as possible." Groups were invited to join the project by painting the hourly numbers. Two concentric ring of numbers are used to indicate both standard and daylight saving time, which extends from 4 am to 10 pm.
 
 
Mexico City Distrito Federal Mexico Horizontal Dial 453
A triangular based horizontal dial with a triangular moat. The outer triangular sides are approximately 12 feet (4 meters). The dial and moat are built of concrete, with an aluminum or sheet metal gnomon about 150 cm. On the dial are metal pyramids to indicate hours. The sundial was donated by the Tecnologico de Monterrey University.
 
 
Las Cruces New Mexico USA Equatorial Dial 452
A large equatorial dial with steel gnomon. The massive dial is set simply on a set of tiered platforms. The inner tiers are rotated from the outer to align to the cardinal points. Elsie Raye Rigney Carr and Dr. Jesse Lawrence Carr gave the dial to the university in 1975 in memory of Raye Hines Rigney, Class of 1911.
 
 
Elizabethtown Pennsylvania USA Vertical Dial 451
A 4x4 foot marble vertical dial declining 25° east of south with a copper gnomon, located above the center entrance of the Grand Lodge Hall and overlooking the formal garden of the Masonic Village of Elizabethtown. The dial face includes hour lines with half hour and ten minute marks and Roman numerals. An inscription, "ANNO DOMINI MCMXII" is located above the gnomon. The dial declines 25° east of south.
 
 
Kingston Ontario Canada Vertical Pillar Dial Dial 450
A square pillar of limestone rocks 4 foot on a side and 15 feet high with a small bowl and sphere on top hold two vertical dials each 2x2 feet. The pillar faces are oriented SE and SW allowing for two declining dials. The dials are of solid brass and have hour lines with Arabic numbers in a modern design belying by the stonework of the pillars. Unfortunately the 14-inch gnomons are bent
 
 
Ottawa Ontario Canada Hemisphere Dial 449
This hemispherium dial is a dramatic modern sculpture. The 32 inch quarter hemisphere is carved into the edge of a 40 inch cube of dark granite tilted to conform to its latitude of 45.5° , and set upon a rough concrete pedestal of slightly smaller dimension. The gnomon is a
 
 
Calgary Alberta Canada Equatorial Dial 448
A steel and brass equatorial dial 49 inches in diameter. The dial simulates an armillary sphere with two crossed semi-circles in a modernistic sculpture. There is a slot in the gnomon that projects a sun line and corrects for the equation of time; the gnomon is turned over at the solstice. Fine adjustments are required near the solstice to show correct clock time (MST). Dial built as a Canadian Centennial Project. Now relocated to a mid-level landing on the entrance stairs but not correctly aligned, producing a 48 minute error.