Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of Mexico

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Villahermosa Tabasco Mexico Multiple Dials Dial 380
A "Gnomonicon", or multi-indication dial, made of concrete, aluminum, brass and copper. The dial stands approximately 5 feet high and has multiple solar time dials in many orientations plus a flat equatorial, a concave equatorial, a revolving equatorial and a rare spherical dial. Also a solar calendar and representations of the ecliptic and the zodiac.
 
 
Vincennes Indiana USA Horizontal Dial 687
a 14 inch diameter cast metal horizontal dial with 15 minute hour lines and Roman hour numerals. Sunrise and sunset times at solstices marked by additional lines. Dial face includes grim reaper figure. Hour lines and gnomon may be designed for different latitude; this may be a commercial dial but it is clever and unrecognized if so. Dial sits on a square tapered marble pedestal with stepped square bases.
 
 
Waltham Massachusetts USA Vertical Dial 191
A declining vertical sandstone dial approximately 3x6 feet with bronze gnomon. Mounted at 2nd floor level on large stone house. Roman numerals. Hour lines from 6 am-5 pm are not in standard vertical position, presumably offset to correct for wall not facing due South. Dial reclines approx 2 degrees north. Dial # 190 (Cambridge MA, Mt. Aubry Cemetery, Story Chapel) has same Whittier inscription.
 
 
Waring Texas USA Vertical Dial 870
This is a rare American stained glass sundial, accurately telling time and season. It occupies the center panel of a five panel window that forms a cross. The vertical sundial panel measures 28x28 inches and declines 48° west of south, so it only functions in the afternoons. The dial is longitude corrected and indicates Daylight Saving Time when readings are adjusted using the Equation of Time. The gnomon is a 3/4 inch brass ball nodus attached by a non-polar axis rod to the aluminum Sussman window frame. It is the only stained glass sundial in the world that uses frosted colored stained glass to enhance the view of the nodus shadow. It has three seasonal date lines, a solar noon mark, and other marks showing special anniversary dates. It contains the traditional fly, seen on the the lower yellow panel between 1pm and 1:30pm.
 
 
Warren Michigan USA Horizontal Dial 269
Horizontal dial 16 ft in diameter with 6 ft gnomon. The Sundial is pyramid shaped, painted in four different shades of yellow and white. Two sighting tubes along slanted upper edge. Sundial sits in center of circular concrete base with brick facing.
 
 
Washington District of Columbia USA Horizontal Dial 256
Octagonal bronze horizontal dial, mounted just above the ground level. Designed by Richard Schmidt of the USNO staff and cast by Alex Bigler of Equestrian Forge celebrates the 100th anniversary of the move of the USNO to its present site at Observatory Circle. The USNO was founded in 1830. Public, but by appointment only (202-762-1438).
 
 
Washington District of Columbia USA Armillary Dial 257
The bronze armillary sphere dial is unremarkable yet is oriented accurately and is complete. About 2 feet in diameter. Hour numerals are Roman and show 5 AM to 7PM. It commemorates a longtime gallery official.
 
 
Washington DC USA Horizontal Dial 793
An incorrectly installed but prominently displayed 8 inch bronze horizontal dial with hour, half-hour and quarter-hour lines and Roman hour numerals from 5 AM to 7 PM. The bronze gnomon is inclined from the dial face approximately 42° and the hour lines appear correct for that latitude, though the local latitude is about 39°.
 
 
Washington District of Columbia USA Armillary Dial 284
The Noyes armillary sphere was donated by Bertha Noyes in honor of her sister, Edith. Made of copper and bronze, the 6-foot armillary had an equatorial band with symbols of the zodiac, a meridian circle and arctic & antarctic circles. A winged cherub — a putto — stood in the center. The dial sat upon a octagonal polished green granite base.
 
 
Washington District of Columbia USA Horizontal Dial 34
A cathedral landmark. 6 foot rectangular crypt with a 2 foot circular horizontal dial in bronze. Adjoining the dial is a cross noon marker that casts its shadow onto the crypt with major Christian holidays marked through the year. Gnomon has a folded shape of 2 cm width but the hour lines form only one dial center although the space at noon gap is 1 cm.
 
 
Washington District of Columbia USA Horizontal Dial 297
Bronze 36 in. sundial. "Garden of Eden". Gift of estate of Paul Manship
 
 
Washington District of Columbia USA Dial 310
Bronze sundial on a concrete column.
 
 
Washington District of Columbia USA Horizontal Dial 316
A horizontal dial 26 inches in diameter with a 9 inch gnomon. Has hour and half hour lines from 5 am to 7pm with 10 minute marks. Made of chocolate sandstone. South of the gnomon is an engraving of two children walking under a tree. Designed by John Carmichael
 
 
Washington District of Columbia USA Armillary Dial 588
A 20 inch diameter bronze armillary on a four foot pedestal. Roman hour numerals from 3 AM to 9 PM.
 
 
Washington District of Columbia USA Horizontal Dial 850
This horizontal dial was commissioned by the District of Columbia Department of General Services for the newly renovated River Terrace Educational Campus. The mosaic dial is installed within a 20 ft diameter concrete plaza. The dial face is a beautifully colored spectrum of Italian Piccolo porcelain 1-inch mosaic tiles encompassing a circle 8 ft in diameter. Embedded in the mosaic chapter ring are 7-inch aluminum Arabic numbers marking the hours from 6am to 6pm and just within are letters marking the cardinal points. The aluminum gnomon is 4 ft. long and 2.83 ft tall.
 
 
Washington District of Columbia USA Horizontal Dial 880
This simple bronze sundial about 12 inches in diameter sits on a 3-foot fluted plinth made from Indiana limestone. Embossed hour lines extend from 5am to 7pm delineated every 15 minutes. Surrounding the hour chapter are Roman numerals with the noon hour marked by "0". The gnomon is very attractive, with a bird ensconced between the style and base. The dial was given to Howard University by the Lampados Club of Alpha Chapter, Omega Psi Phi Fraternity in 1929 to honor Benjamin Banneker, 18th century astronomer, surveyor and executing architect of the District of Columbia.
 
 
Washington District of Columbia USA Collection Dial 122
Smithsonian collection of dials
 
 
Washington DC USA Horizontal Dial 644
A bronze horizontal dial about 18 inches diameter on a cast concrete pedestal. Perimeter of dial includes three-dimensional cast replicas of roses and butterflies. Bronze gnomon includes replicas of butterfly, tightly-furled rose and leaf. Dial face has hour lines with Roman numerals and 15-minute marks and a sunburst at dial center. The dial rests on a cast concrete pedestal.
 
 
Washington District of Columbia USA Vertical Dial 202
Vertical dial with bronze Roman numerals and trefoil pierced gnomon on square sandstone. Dial is on south facade over main entry, facing East Capitol Street. School is dated 1923. Elevation above entrance is approximately 30 ft. making dial hard to read. Large projecting towers place dial in shadow in early morning and late afternoon. Similar to McKinley High School dial (#207).
 
 
Washington District of Columbia USA Horizontal Dial 203
In the Bishop's garden is a weathered 13th C. capital on which sits a 41 cm diameter horizontal brass dial. It is engraved with "Tho Heath, London" and the year 1712. On the noon line is the indication "Hammersmith", a location on the (then) outskirts of London at 51:30N 0:14W. Heath is one of the Grocers' Company mathematical instrument makers Many of Heath's dials have a coat of arms.