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).

 
 
Carona Queens New York USA Equatorial Dial Dial 143
11' H x 18' W x 11' D Bronze on Granite base Entitled 'Crack of Dawn Sundial.' Equatorial type, using a slot of sunlight as the gnomon
 
 
Port Richmond, Staten Island New York USA Vertical Dial Dial 142
17' H x 11' W x 8' D Painted steel with stainless steel wire cloth Noon mark and analemma features made of concrete and brass.
 
 
Cove Oregon USA Equatorial Dial Dial 141
An unusual sun sculpture 5 foot tall and approximately 20 inches in width and depth. Has hour and minute markings arranged on horizontal members. A 1/4 inch steel rod functions as the gnomon. The dial is set to read Pacific Daylight Solar Time, with a stated accuracy of 15 seconds of time.
 
 
New York New York USA Equatorial Dial Dial 140
A 20' H x 10' W x 5' D Equatorial in Bronze and Stainless Steel. Entitled "Song to the Sun." Dial by Robert Adzema; gift of George and Annette Murphy in 1984.
 
 
Franklin Center Pennsylvania USA Equatorial Dial Dial 139
A modernistic equatorial dial about 6 feet in diameter. The analemma shaped gnomon casts standard time onto a wide metal semicircle band. The hours with 10-minute marks are inscribed on the center of the equatorial band. This unique sundial tells the time, indicates the approximate day of the month and projects the zodiacal constellation signs as they are aligned with the sun and the earth in this era. It is accurate to within two minutes.
 
 
Shreveport Louisiana USA Horizontal Dial Dial 138
Stone Dial vandalized. Gnomon missing, apparently knocked off with some damage to horizontal dial plate. Dial bears Roman numerals, from IV to VIII.
 
 
Boulder Colorado USA Horizontal Dial Dial 137
A horizontal dial using a 60 cm brass plate gnomon with a slit that projects a shaft of light onto the dial face inscribed with un-numbered hour lines. Dial sits atop a cubical marble base with a plaque bearing the inscription.
 
 
College Station Texas USA Armillary Sphere Dial 134
Called the Texas A&M Armillary Sphere, this sundial is 60 inches in diameter. Made of wrought iron, it has one large vertical ring representing the meridian at College Station. Attached to the inside of this ring is a wide band representing the celestial equator. The outside of this band is decorated with gold signs of the zodiac. On the inside are gold roman numerals for each hour. A rod with gold tip and ornate fan is the gnomon. A metal plaque mounted nearby gives a description of the dial and EoT corrections. Dial donated by Searcy Bracewell, class of '38. Built by Kenneth Lynch & Sons, Wilton, CT. Dial sits atop a concrete cylinder, 2 foot high, 3 foot diameter.
 
 
McMinnville Oregon USA Vertical Dial Dial 133
8 x 6 ft Stainless steel and copper The hour lines project beyond the dial face, which is mounted about 12' out from the wall and cast digit-shaped shadows on it. Thus both the hour-lines and stile line are shadows. The dial is mounted on the south face of a tower, structurally an elevator shaft. The bronze plaque at the base contains the inscription.
 
 
St. Johns Newfoundland Canada Armillary Sphere Dial 132
A 38.5 inch diameter bronze armillary with equatorial, meridian and horizon rings and with Roman hour numerals. Dial sits atop a six foot high concrete pedestal. The dial was restored in 1999 by Memorial University's Technical Services Department to celebrate the Festival of Anniversaries.
 
 
Salem Massachusetts USA Horizontal Dial Dial 131
Approx. 10 inch diameter cast bronze horizontal dial. Inner ring has zodiac signs, middle ring has cherubs, leaves and a crown, and outer ring has hours 4AM-8PM in Roman numerals but no hour lines. The 6AM and 6PM lines are opposite each other but their hour lines do not pass through the root of the gnomon. It is believed the dial was installed about 1910 by then owner Caroline Emmerton. The dial was moved in 2007 to a less sunny location to make room for a seaman's memorial sculpture. The dial pedestal is traditionally decorated stone with circular top
 
 
Portsmouth New Hampshire USA Horizontal Dial Dial 130
Octagonal, approx 6 in. on a side Brass/Bronze Center compass rose, 4AM-8PM in Roman numerals. Standard stone pedestal. Probably not the original, as it is oversize for the dial plate.
 
 
Toronto Ontario Canada Horizontal Dial Dial 128
Approx 55 ft square Stone (concrete?) 4AM-8PM marked in Arabic numerals, half and quarter hours marked with lines. A huge dial. The gnomon is sunk below the outer level by a series of steps. The hours are marked by stone slab 'seats' spaced around the outer square. There are two seats at the noon position to allow for the width of the gnomon. This dial no longer exists.
 
 
Ottawa Ontario Canada Vertical Dial Dial 127
Two vertical declining dials declining 58.1? west and 31.9? east on adjacent sides of the south corner of the Sisters of Charity of Ottawa Mother House. The western dial is approximately 7x8 feet and the eastern dial is approximately 7x4 feet. The dials are of gray plaster with black painted iron gnomons. The dials decline 58.1? west of south and 31.9? east of south. The western dial has hour lines from 10 AM to 7 PM and the eastern dial has hour lines from 7 AM to 3 PM. These dials predate the use of time zones and show local solar time. Mayall on p. 229; erroneously described this dial as on Mint Tower. LAMIRANDE, E., Elisabeth Bruyere, Foundress of Sisters of Charity of Ottawa, Ottawa, 1995, p. 207, "In the course of the same winter, Fr. Allard had built a double sundial of great dimension on the southwest angle of the house (corner of Bolton and Sussex streets) which, even today, continues to give the correct time, as it did in Mr. Bruyere's time; she greatly appreciated the convenience. The work presupposed an advanced knowledge of mathematics and astronomy. It was the first of its kind in Canada."
 
 
Cambridge Massachusetts USA Collection Dial 125
Harold C. Ernst Collection Ernest G. Yalden Collection
 
 
Salem Massachusetts USA Horizontal Dial Dial 124
Here is a bronze dial approximate 8 inches in diameter with the date 1644. In spite of its age, it is now highly polished showing little if any wear to lines, engraving, and mounting holes. Roman hour numbers go from 5am to 7pm and the chapter ring is divided into quarter hours. The dial face is square and outside the hour ring are many small 5-point stars, stamped with a tool. The dial looks different from those made in London and the Proctor family immigrated to the New World in1635. Measuring the hour lines, the dial was probably made for Salem at 42.5 deg latitude. However an analysis of the hour lines shows the best fit latitude is 44.5 deg. The dial was presented to the Peabody Museum in 1907 by Abel Proctor and is attributed to John Proctor, who along with his wife Elizabeth, were accused of witchcraft in 1692. At the time Proctor was a wealthy tavern owner, but nevertheless was hanged. His wife was spared due to the fact she was pregnant, but remained "convicted" through out her life.
 
 
Accokeek Maryland USA Armillary Sphere Dial 118
Copper armillary dial 18 inches diameter. Two main rings are square1/2 inch tubing. Other parts of armillary are made of flat copper, about 3/4 inch wide. Has Roman numerals. Probably built by Ferguson family and installed in the 1920's. The dial base is cast cement, partly fluted, about 3-1/2 foot high, round at top, square at bottom.
 
 
Seattle Washington USA Vertical Dial Dial 117
Large vertical dial declining 36? west of south with hour lines, analemmal lines, sunrise and sunset limits, solstice lines. Metal structure mounted slightly away from brick building surface. Gnomon is a ball mounted on a rod emanating from sunburst. Visit the university of Washington web page to see this beautiful dial.
 
 
Williamsburg Virginia USA Horizontal Dial Dial 116
A unique bronze 12-3/8 inch octagonal horizontal dial with one main hour ring for local time and six subsidiary rings that give the time in London, Vienna, Constantinople, Jerusalem, Barbados and Mexico City. The main hour ring shows hours in Roman numerals and ten minute intervals in Arabic numbers; each hour is divided into sixty minute intervals and "fleur-de-lis" decorations are placed at the thirty-minute marks. The subsidiary rings are inscribed with Roman numerals for daylight hours and Arabic numbers for night hours. The presence of subsidiary rings suggests the dial was made with an instructive or "world-view" intent.
 
 
Williamsburg Virginia USA Horizontal Dial Dial 115
A 14 inch square brass horizontal dial with hour lines and Roman numerals, compass rose and inscriptions honoring John Barrow. A fluted square pillar supports the dial.
 

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