Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of Oregon

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McMinnville Oregon USA Vertical 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.
Medicine Hat Alberta Canada Equatorial 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.
Merida Yucatan Mexico Vertical scratch Dial 537
A south-facing meridional vertical or scratch dial with horizontal gnomon and located on the roof at the front of an early church monastery cloister. The stone dial is approximately 3 feet square. The north face is similarly inscribed. This is among the earliest sundials in North America.
Merida Yucatan Mexico Equatorial Dial 538
Generally identified as an equatorial, this stone cylindrical cavity dial uses the extremities of the semicircular dial plate as two independent styles. The dial face is marked with six equally-spaced hour lines with minor subdivisions. The east style casts the 6 AM to noon shadow while the west style casts the noon to 6 PM shadow. No construction date is give but is likely 18th century or earlier.
Mesa Arizona USA Analemmatic Dial 801
This concrete analemmatic dial is set is a larger concrete plaza located in a City park with an overall theme of Sonoran Desert environmental education and nature-based play.
Mesa Arizona USA Equatorial Dial 302
Very handsome equatorial dial of bronze and marble, approximately 50 in. diameter. Sits on a triangular base atop marble pedestal 39 in. x39 in. x24 in. high. Inside brick-walled enclosure about 21 in. square.
Mexico City Distrito Federal Mexico Horizontal Dial 453
A triangular based horizontal dial with a triangular moat. The outer triangular sides are approximately 12 feet (4 meters). The dial and moat are built of concrete, with an aluminum or sheet metal gnomon about 150 cm. On the dial are metal pyramids to indicate hours. The sundial was donated by the Tecnologico de Monterrey University.
Miami Florida USA Vertical Dial 785
An east-declining vertical dial near the top of a stone winter residence building, now a museum. Dial face includes hour lines and Roman hour numerals for 5 AM to 3 PM. Building and dial were built in the early 1900s but gnomon appears to be in good condition without corrosion so it may be bronze. Dial includes a depiction of a scroll with engraved Latin inscription.
Miami Florida USA Analemmatic Dial 573
A 16 foot diameter analemmatic dial of broken mosaic tiles. The numerals, months and lines are made with broken colored tiles. The major axis is 10 feet. A movable vertical gnomon is available for increased reading accuracy but a standing child is the usual gnomon. The colored number tiles are white for DST and black for ST.
Milton Massachusetts USA Vertical Decliner Dial 92
A vertical south facing dial made of painted mahogany with an aluminum gnomon. The dial is in the shape of a shield 3 foot tall by 2 1/2 foot wide, following the seal of the Milton Academy. Around the edge are the hours in Roman numeral. An Equation of Time correction table is now missing, but does not detract from the beauty of the dial.
Milwaukee Wisconsin USA Vertical Dial 841
This large vertical south facing sundial is fabricated from aluminum. Eight slender hour lines delineate the time. At the top of the hour lines along the winter solstice are acrylic numbers on the circular hour plates showing time from 10am to 5pm. At the bottom of the hour lines along the summer solstice are additional acrylic numbers showing daylight saving time from 11am to 6pm. A short horizontal bar shows the equinox.
Milwaukee Wisconsin USA Vertical Dial 381
A direct south cast or wrought iron vertical dial on a brick building.
Mineola New York USA Horizontal Dial 59
ca 30' diameter circle Concrete, with metal hour lines and Roman numerals Very large horizontal dial at ground level. Donald E. Axinn (a builder) donated it to the county. He and Gencorelli designed it. The gnomon was originally positioned incorrectly but has since been moved to the proper position. However, it is wrongly oriented, with a bearing of 342 degrees rather that true North.
Monegaw Springs Missouri USA Compass Dial 888
This compass is carved in rock showing cardinal points. For some reason the N mark is backward and a W mark is upside down. A surrounding circle of 10 inches in diameter defines most of the compass. A smaller circle encompasses the letter N and a partial circle carved from the center is approximately 4 inches in diameter.
Monterrey Nuevo Leon Mexico Equatorial 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.
Monticello Virginia USA Globe Dial 470
A replica of Jefferson's lost dial, which he recounted in 1817, "My dial captivates every body foreign as well as home-bred, as a handsome object & accurate measurer of time." Made according to Jefferson's design, the replica dial is a 10 1/2 inch painted wood sphere with horizontal lines drawn for the equator, Tropics of Cancer and Capricorn. Longitudinal lines are drawn between the two tropics to indicate the hours of the day. A gnomon fixed to the poles swings around the globe until it casts the smallest meridian shadow. The original sphere was made of black locust wood but the replica is mahogany because it is "more durable, stable and easier to find." The base was originally a model of a capital, the top part of a column, that Latrobe had designed for the U.S. Capitol. It was unique, featuring ears of corn in motif. When Jefferson received the base from Latrove, "it looked bald for want of something to crown it" and so Jefferson designed a globe that "might be made to perform the functions of a dial."
Montour Falls New York USA Horizontal Dial 516
A beautiful bronze dial approximately 12 inches long in the shape of a shield. Below the gnomon is a rising sun. On first look, the small dial plate appears backward, with AM and PM hours reversed. However, the inclination of the gnomon is about 48 degrees, suggesting that this pedestal mounted dial is really meant to be a south facing vertical dial! The dial sits atop a circular granite pedestal about 2.5 feet in diameter.
Morristown New Jersey USA Analemmatic Dial 819
This analemmatic dial is approximately 20 feet wide by 12 feet long, constructed of reinforced, high strength cast-in-place concrete. Showing both Standard and Daylight Savings Time, the dial uses a dual ring of twenty-eight circular hour markers. Each hour marker is a 12 inch diameter precast paver flush with the surrounding landscaping with an aluminum Arabic hour numeral on top.
Morristown New Jersey USA Horizontal Dial 332
12 in diameter horizontal dial with very elaborate engraving on the bronze dial plate. In the center is a 32 point compass rose. Hour lines are corrected for gnomon width. The Equation of Time chart is engraved inside circle of hour lines with Roman numerals, which extend 4Am-8PM. At the south end of the gnomon is engraved 'R Glynne Fecit'. This appears to be a copy of dial by Richard Glynne, an 18th century dialist. Pedestal is a concrete spiral.
Morristown New Jersey USA Horizontal Dial 98
12.75' dia. Granite with Bronze numerals 10" long. Commonly called the Washington Memorial Dial. An inscription on the octagonal base indicates this memorial is a tribute from the Daughters of the American Revolution.