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 the full dial listing and images. To see sundials from a particular state or province, you may click on the list at right to see all registered sundials in that state, province or country (at bottom) displayed in city order.

You may also type into the NASS search field at upper right any search word such as "equatorial" to get a list of all articles mentioning equatorial dials and a list of all equatorial sundials in the registry. (Try other dial types: "vertical", "horizontal", etc).

 
 
Columbia Missouri USA Cylindrical Dial Dial 496
A cylindrical dial 10 inches in diameter constructed of photoengraved aluminum. The elegant dial plate shows each hour line as a full analemma and lines for Central Standard and Central Daylight Time. Accompanied by seasonal lines of solstice, equinox, monthly lines and other dates during the year. Back and base of dial are constructed of PVC.
 
 
Medicine Hat Alberta Canada Equatorial Dial Dial 495
The Medicine Hat equatorial sundial was commissioned by the Rotary Club of Medicine Hat to commemorate its 50th anniversary (1918-1968). This is an Erickson equatorial polar dial. The dial is 6 feet 9 inches in diameter, made of pink granite, and weighs 3450 pounds. The dial is supported by an inclined stainless steel gnomon rod 3 inches in diameter, with overall length just over 6 feet. As with many of these dials, there are two equation of time plaques.
 
 
Traverse City Michigan USA Analemmatic Dial Dial 494
This beautiful analemmatic dial was built as part of the American Society of Landscape Architects' 100 years/100 Parks project. A colored concrete pad was poured on the north/south axis and scored joints for each month. Stainless steel plates show the name of the months. On either side of the concrete pad are dry laid flagstones with creeping thyme in the joints. Hour markers are 12 inch diameter colored concrete bases with numbers cut from stainless steel. A stained glass sun plaque at the top of the month axis was made by a local artisan. Total dial size is about 10 x 20 feet.
 
 
Taos New Mexico USA Horizontal Dial Dial 493
A copper and bronze horizontal dial about 15 x 15 inches. The dial was built by the Rocky Mountain Youth Corp, an organization the helps direct the energies of "at risk" youth. Base of dial is clad with 2x4 inch glazed tiles made by all the 5th graders in town. There is a compass rose around the base and on dedication day, an area of wet cement was available those present to make an inscription or hand print.
 
 
Hamilton Ontario Canada Vertical Dial Dial 492
On the outside south wall of the library, about 15 feet above the ground is a vertical dial about one meter square. Dial is declined 18 deg 6 min west. The 1pm and 8pm numbers are missing. The dial is stone with aluminum gnomon and numbers.
 
 
Washington District of Columbia USA Gnomonic or Projection Dial Dial 491
With a bit of whimsy at the end of each day for over two years, Dr. James Griffith marked the position of a ray of sunlight on a wall that entered from a west window overlooking the Potomac river. The result is an analemma, tracing the sun's position at 4:10 pm E.S.T. throughout the seasons. Dr. Griffith was a chemist, but as written on a plaque next to the analemma, "Exactly what this has to do with chemistry per se is not perfectly clear, but Viva Principia Scientifica!" Photos may be seen on Walt Sanford's web site.
 
 
Roswell New Mexico USA Horizontal Dial Dial 490
A beautiful bronze sundial sits on a pillar of rough marble. It was given to the Library by the Roswell Womens Club at the turn of the 20th century. Unfortunately the dial is damaged, but the Roswell Womans Club is searching for someone to repair the dial.
 
 
Cuencame Durango Mexico Vertical Dial Dial 489
This vertical dial is 2m tall by 1.2 m wide and sits atop a quarried column nearly 7 m high. The gnomon on each face is approximately 60 cm long, and 16-19 mm in diameter. Each face has Roman numerals to indicate apparent solar time from 6am to 6pm. Alpha and Omega Greek letters. A carved cross at the twelve hour line. Inscribed "1904"
 
 
Monterrey Nuevo Leon Mexico Equatorial Dial Dial 488
This equatorial dial is just over 3 m in size, made of iron. Along the equatorial band are twelve Roman numerals to indicate apparent solar time and twelve Arabic numerals to indicate standard time. The outside of the equatorial band has zodiac constellations. There are also solstice and equinox discs at the gnomon. There is a plaque for the equation of time and an explanation of time corrections next to the sundial. The dial sits on a 1 m high stone base.
 
 
Torreon Coahuila Mexico Vertical Dial Dial 487
This is a stone cube 3.5 m high with four vertical dials. Each dial face is about 2.2 m high by 1.25 m wide The South and North faces have Arabic numerals to indicate solar time from 6am to 18hrs, with marks every 15 minutes. The East face has numerals from 6am to 12pm and the West face complements from 12pm to 18hrs. These faces have half hour marks. The South face has seven declination lines, constellation dates, analemma line, zodiac symbols, and equinoctial and solstice lines. A curve to indicate light and shadow hours all the year is on each face. A square base on quarry. At the north-east corner are the carved names of the designer Miguel Bertran de Quintana and builder Cirilo Nunez. Note: because of the sundial size and latitude, it was necessary to extend the four vertical faces of the sundial into the horizontal plane to indicate the summer solstice line and 11:30 and noon hours of summer.
 
 
Des Moines Iowa USA Horizontal Dial Dial 486
This large horizontal dial is approximately 6-foot square with a 4-foot gnomon. The dial face is done in two tones of marble. Time is indicated by radiating hour lines to nearly the dial's edge and graced with Roman numerals. The gnomon has an emblem of the masonic star on west side, and the masonic square and compass on the east side.
 
 
West Des Moines Iowa USA Armillary Sphere Dial 485
This is a 24-inch armillary sphere on top of a portion of a brass globe showing continents and latitude lines o The dial points generally south, aligned for beauty, not function. The base is aligned to a general northern direction. The time equatorial band, meridian circle and improper horizontal band are painted black. Elegant polished brass Arabic hour numbers half-hour brass time beads indicate the time on the equatorial band. Sits on a concrete column several feet high.
 
 
Des Moines Iowa USA Horizontal Dial Dial 484
A small 8-inch diameter dial of bronze with black background and highly polished Roman numbers and hour lines. An eight-point compass rose, equally well polished occupies the majority of the center. The gnomon is missing. The dial plate is set at an incorrect orientation. The dial sits on a 4-foot high fluted granite column.
 
 
Des Moines Iowa USA Horizontal Dial Dial 483
A very large and striking horizontal dial 50 feet in diameter with a 15 foot tall metal gnomon. Dial has standard time marked in brass Roman numerals and daylight saving time in smaller circular brass discs with Arabic numerals. The 16 large granite markers radiating from the center are artistic effect only and to not mark time. This large monumental dial is surrounded by a knot-garden. The dial granite base is raised 2.5 feet.The knot-garden theme is continued on the upper, center level.
 
 
Palo Alto California USA Vertical Dial Dial 482
A vertical declining dial approximately 45 x 55 inches. Made of aluminum and brass. Shows the hours from 8 am to 5 pm using analemmas. Analemmas are bounded by the summer and winter solstices and a straight line through them shows the equinox. Daylight time is shown using Roman numerals, with standard time shown in Arabic. In keeping with the motto, a simple equation is written on the dial face, d/dt is not equal 0. Designer Ronald Bracewell used an oculus, a disk with a central hole, standing 8 cm in front of the dial face. The disk casts a shadow with a bright sunlight dot to indicate both time and season. Hour lines include longitude correction. This has been relocated; it was previously hanging free below a south facing wall, facing the Terman Engineering Building. Dial is now located on the wall of a covered walkway area.
 
 
Honolulu Hawaii USA Vertical Dial Dial 481
An elegant vertical declining and reclining dial built on the sloping face of a large lava boulder. Total size of the dial is 4 1/2 x 6 feet and uses a half-inch thick copper gnomon 6 x 10 inches. Hour lines and numerals at 9, 12, and 3 are of brass. The dial is corrected for longitude and was designed to fit its deep valley location and orientation of the boulder. Tradition holds that these rocks have spirits and must be treated with respect.
 
 
De Dedo Guam USA Analemmatic Dial Dial 480
This analemmatic dial approximately 10 x 20 feet set into concrete. At the low latitude of Guam, the gnomon standing spot extends outside to ellipse of hour markers. Between April and September the shadows are very short near the noon hour and are difficult to read.
 
 
Council Bluffs Iowa USA Obelisk or Vertical Gnomon Dial 479
Vertical gnomon casting its shadow onto a plaza in front of the city library. Modernistic design. This dial has been scheduled for removal as of October, 2010 due to cracking and to make more green space.
 
 
Edinburg Texas USA Obelisk or Vertical Gnomon Dial 478
A vertical gnomon 19.58 feet tall projects its shadow onto a modernistic courtyard. The courtyard has inlays showing the hour corrected for the equation of time, give a sinuous set of curves to the hour lines.
 
 
Colima Colima Mexico Equatorial Dial Dial 477
A bright bronze equatorial sundial with a stainless steel equatorial band. The gnomon has an analemma for the correction of time and a colorful sunburst near the northern end of the rod.
 
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