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.

 
 
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.
 
 
Poughkeepsie New York USA Armillary Dial 165
Built by Kenneth Lynch & Sons, Wilton CT
 
 
Washington Crossing New Jersey USA Horizontal Dial 164
A 13-inch diameter horizontal dial made of iron. The dial has hour lines from 5am to 7pm, marked with Roman numerals. The gnomon is of unusual design. Set at 45 degrees, the style is supported by the profile of an eagle, head facing northward, and tail tapering to the southern point of the style. The base is a square pedestal, cobbled of stone and mortar. At top is a stone cut square to hold the dial.
 
 
Dartmouth Massachusetts USA Vertical Dial 163
1820 Federal style building owned by the Univ. of Mass. at Dartmouth. Referred to as the Sundial building because of a vertical dial over the main entrance.
 
 
Burlington Vermont USA Vertical Dial 161
2'8" x 2' oval. Probably of Bronze. Gift of Mr. & Mrs. Willard Pope. Planned by Prof. Betty Bandel. Hour lines are curved to compensate for EoT. Rings indicate months. Difficult to read due to height above ground. (ca. 12' above ground level.) Dial faces approx 5 degrees East of due South. Built by W. M. Schenk.
 
 
Philadelphia Pennsylvania USA Horizontal Dial 160
A 1 foot diameter bronze horizontal dial. It was presented by National Association of Watch and Clock Collectors in 1991. However, the style angle is 52?.
 
 
Laramie Wyoming USA Horizontal Dial 159
An ornate 18 inch brass horizontal dial sits on a massive four-stone block pedestal. The dial has hour lines from 4am to 8pm, with hours in roman numerals. Time is graduated into 5-minute intervals. The 12-noon mark is 3/8 inch wide, allowing for the gnomon which is missing.
 
 
Philadelphia Pennsylvania USA Analemmatic Dial 158
Analemmatic dial with bronze standing figures.
 
 
Philadelphia Pennsylvania USA Horizontal Dial 157
A 1 foot diameter bronze horizontal dial on a square granite pedestal 3 feet tall. Possibly made in 18th century. Beautiful engraving.
 
 
Philadelphia Pennsylvania USA Horizontal Dial 156
A 1 foot diameter bronze horizontal dial in backyard garden. May be from 18th century. Gnomon is shaky for its bolts are loose. Style angle is about 51?, an angle for London, not for Philadelphia.
 
 
Philadelphia Pennsylvania USA Vertical Dial 155
Vertical Dial