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.

 
 
Mystic Connecticut USA Vertical Dial 186
Large slanted vertical dial on 8 ft. by 4 ft. wood rectangle mounted on a wall declining 80:50 east. Shows hours only till 11:30 AM, thus frequently called 'the morning dial'. Dial originally had no motto. Inscription was added later when dial was refurbished. Designed by Albert Waugh and fabricated by Edwin Pugsley.
 
 
River Falls Wisconsin USA Vertical Dial 185
The inspiration for this sundial, at one time the largest vertical dial in the world, came from Dr. Swensen visiting Heidelberg castle that had a large vertical dial on the wall of the castle. Construction of the Univ. of Wisconsin dial began in 1994 on the south wall of the Kleinpell Fine Arts Building. The result is a 30 x 56 foot vertical dial of anodized aluminum with analemmic hour markers, and day lines to mark winter and summer solstice, Candelmas (1/31), Martinmas (11/10), Beltane (5/8) and Lammas (8/4), vernal and autumnal equinoxes. The massive south-facing vertical dial takes up the entire wall of the three-story fine arts building. The hour markers are gold on the 'Spring' side and brown on the 'Fall' side with 7 day intervals marked on each.
 
 
Schroon Lake New York USA Horizontal Dial 184
7-sided metal plate, about 9.75" on a side. Bronze. Unusual 7-sided dial plate, Arabic numerals. Hour and half-hour marks on outside rim. Image of bible and cross on plate left of gnomon, and 'Word of Life' on right. (These are the standard logo of the organization.) Fabricated by Colonial Brass Co, Middleboro MA.
 
 
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.
 
 
Burlington Vermont USA Horizontal Dial 182
Approximately 16 inch square metal horizontal dial with engraved dial face. Photo taken approximately 1965. Dial may have been removed. May required admission to Shelburne Museum.
 
 
Annapolis Maryland USA Horizontal Dial 181
18" Bronze on stone Gnomon 10" long, 6.25" high 'United States Naval Hospital Annapolis MD' on dial face below 6AM/PM lines. Tells local apparent time. Has Arabic numerals, hour lines and shorter half-hour lines. Dial sits atop a circular stone pedestal with beveled capital.
 
 
Sturbridge Massachusetts USA Horizontal Dial 180
A 1 foot diameter cast iron circular plate, with Roman numerals 5 am to 7 pm. Subdivided into 30 min increments on one ring, 10 minute increments on an adjacent one. Fastened with screws to a large rock. Reproduction of an authentic original cast iron dial from the Samuel Pierce House, Middleton, CT. Plaque reads "In grateful recognition for the leadership and service of Edward L. Clifford, Chairman of the Board of Trustees."
 
 
Carmel California USA Equatorial Dial 179
A simple 12 inch diameter equatorial ring dial of rusted steel on a cast iron base bolted to a brick floor. This replacement dial has Arabic numerals and the base has Zodiacal symbols. The original "Sundial Lodge" was renovated as a boutique hotel but during the construction the original horizontal dial was lost. The original horizontal dial was about 16 in. diameter, made of bronze with a circular plate with Roman numerals on a plain concrete column and displayed the inscription, "Count none but the sunny hours."
 
 
Bristol Connecticut USA Horizontal Dial 178
Horizontal dial designed by Richard R. Bolster. Stone. "Mr. Bolster couldn't find dials to collect so he made his own collection."
 
 
South Hadley Massachusetts USA Horizontal Dial 177
ca 18 inch diameter horizontal dial. Roman numerals, 5 AM to 7 PM. Zodiac signs in circle within numerals. Capricorn and Sagittarius misplaced. Gnomon replaced, 1991. Dial sits atop a two-step octagonal base, ornate carved pillar.
 
 
Woods Hole Massachusetts USA Pillar Dial 176
Stone pillar. Brass EOT graph Four-sided column. Dial on each face, with stone sphere containing a polar axis mounted on the top. Known as the Yalden dial. North gnomon has been placed incorrectly since at least the early 70's.
 
 
Sandwich Massachusetts USA Armillary Dial 175
Bronze armillary dial about 40 inches in diameter. Has polar and meridional circles, with smaller ones at north and south poles. Gnomon is 1 inch in diameter. Dial is mounted on a wedge atop an octagonal stone pedesta. To enter Heritage Plantation there is a fee. For information phone 508-888-3300.
 
 
Annapolis Maryland USA Self-Orienting Dial 174
4'x4' Bronze & Brass 4' Dial plate is elaborately engraved bronze with hour and date lines. Self-orienting dial. Locate line for the date; rotate dial until shadow tip touches that line. Read time from intersection of the shadow's tip and the time line radiating from dial center. Gnomon is a model of a naval missile, resting on an anchor. A ship's binnacle supports rotating sundial plate. As of July, 2012 the missile gnomon is missing.
 
 
Richmond Virginia USA Gnomonic Dial 173
'Built in 1981 after an article in Scientific American (Dec 1980 "The Amateur Scientist") described a computer program for building a gnomonic dial with analemma hour lines. The dial was painted on the museum's parking lot, using a ball atop a 25 ft aluminum flagpole as the nodus. Semi-annual analemmas were painted in different colors, allowing correction for the equation of time. The dial was refurbished June 1992.
 
 
Boulder Colorado USA Equatorial Dial 172
A large polar equatorial dial by Erickson Monuments, known as the "Tippit Sundial" given by John Tippit in memory of his son. The dial is of dark red granite, 6 feet in diameter and 6.375 inches thick. The gnomon shaft is steel, extending from the ground through the dial plate and outward another two feet. 24 hours are inscribed on each side of the dial (summer and winter) as radiating lines with Arabic numbers at the end. Time is graduated by half-hour and 5 minute marks. Designed to be read from the upper surface in Spring/Summer, from the under side in Fall/Winter. The hours on the under side of the dial were originally engraved backwards. Two plaques provide the Equation of Time to convert solar time to watch time. The dial rests on a cement work 7 feet high.
 
 
Napanee Ontario Canada Armillary Dial 171
4 ft Steel Sphere. Gnomon frame and dial frame made of 6 in. x 4 ft. steel wagon tires. Gnomon is 6 in. diameter steel rod. Mounted on base using standard pipe fittings. Dial sits atop a 2.5 inch diameter pipe.
 
 
Mount Laguna California USA Equatorial Dial 170
The odd bowl-shape of this equatorial dial designed and built by C.T. and W.M Thwaites shows a reversed engraved map of the world. A horizontal bar across the bowl has a small metal nib which points out the time of the day (top and bottom for standard and daylight times) and also indicates the spot on the world where the Sun is currently directly overhead. On full Moon nights, this dial has been used to effectively tell time and show the position of the Moon over the Earth as well.
 
 
Saint Anthony Newfoundland Canada Equatorial Dial 169
A Pilkington & Gibbs Heliochronometer, 9 in. diameter, 9 in. high bronze with two sights, 3 x 1.5 in. Points of compass on dial base, months and dates on face. Rotates to compensate for EOT. Dial is a circular plate, mounted to allow adjustment for latitude. Gnomon consists of two cast posts with vertical slits, about 6 in. high, on opposite sides of plate. Another adjustable scale permits EOT corrections. It was part of original house from 1909-1939. Not dated, but the chronometers were sold between 1907-1914. Now on display in museum and not set up for use. Heavily patinated with some corrosion. Fabricated by Pilkington & Gibbs Ltd, Preston England, # 433. The dial is mounted to a solid Labradorite pillar, 1 foot square, 21 inch high.
 
 
Mt. Vernon Virginia USA Horizontal Dial 167
A bronze octagonal horizontal dial about 12 inches on a side. Original dial is badly worn and virtually illegible; this original is now stored inside the museum. A 6 inch replica of the dial is located on a pedestal in the center of a circular lawn. This replica has an 8-pointed compass rose in the center and Roman numerals from 5 AM to 7 PM. The hour intervals are graduated into two-minute increments, with Arabic numerals 20-40-60 at appropriate places between the hour lines. Pictures of both the replica and the original dial are in the Image Archive.
 
 
Knoxville Tennessee USA Horizontal Dial 166
78" w x 168" h x 78" d Steel, brass & etched glass As the sun penetrates the building a shadow is cast from the gnomon onto the 1 inch thick laminated glass which has hour lines etched into its surface. The time is viewed from the underside of the dial. A deep carved mountain landscape is artificially lighted in the lower section.