Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of Maryland

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Sunderland Maryland USA Horizontal Dial 259
A brass horizontal dial 11.5 inches in diameter with a 7 inch high gnomon. The dial is intricately engraved and includes compass points and gradations of the clock to two minutes. Made by "E. Nairne", a London dial maker in the 1750's to 1800. Rector Stephanie Chase Wilson says "I believe it was made specifically for our church as it has the name "All St.s Parish Calvt County" written on the face on the opposite side from "E. Nairne." The oral history of its origins is that it was commissioned by the Rev. Thomas Claggett, rector of All Saints from 1769-1777, and again from 1786-1792. He gave the sundial to the church in thanksgiving for being called as the first Bishop consecrated on American soil on September 17, 1792 in Trinity Church, New York." "About 15-20 years ago the sundial was stolen from the church, but a quick-thinking parishioner got word out to every antique store within 100 miles and several days later it was recovered. A replica was created and now sits outside the church on a pedestal. The original is under lock and key. The only special care it gets is an occasional dusting. "
 
 
Superior Arizona USA Horizontal Dial 105
A small 8 in. bronze horizontal dial with raised Arabic numerals marking the hours. The dial is set on a massive cobble stone and mortar base suitable for sitting upon while watching the hours.
 
 
Surprise Arizona USA Horizontal Dial 574
A 108-inch diameter granite dial face with a 92-inch steel gnomon and nodus. Dial furniture includes a solar noon mark, sunrise and sunset points on the solstices and equinoxes, ecliptic date lines and an EOT graph.
 
 
Swanton Vermont USA Horizontal Dial 72
Cedar wood 10' cedar pole covered with copper tiles forms the gnomon. Flowers and an evergreen hedge mark shadow paths of equinoxes and solstices. IAPS Listing survey May 1992. Some hour markers missing.
 
 
Swarthmore Pennsylvania USA Vertical Decliner Dial 35
Modern design for a vertical dial declining 20.5? east on a brick wall. The gnomon is a twisted sheet of bronze, casting shadows onto granite hour marks. The dial was designed by Marti Cowan using Waugh's formulae for vertical dials. Frederick Orthlieb, professor and chair of the Dept of Engineering at Swarthmore "had a part in locating the bent-plate gnomon so as to give correct indications on the vertical wall? As installed, the gnomon's indicating edge (which lies on a Polar Axis) casts a quite short shadow in Autumn and Winter and requires some observing skill to make a close estimate of indicated time, but in Spring and Summer the longer shadow moves over the granite hour marks very plainly."
 
 
Sydney Nova Scotia Canada Equatorial Dial 638
A ring equatorial dial constructed from a large, dual-loop aluminum radio direction finding antenna. Outer ring is 80 cm (31.5 inch) diameter mounted on a 1.3 m (51 inch) pipe pedestal. Hour ring is stainless steel and marked in ten minute intervals showing local apparent time. A nearby plaque provides EOT conversion to standard time. A second small style projects a shadow at noon local apparent time on a second vertical scale to show the sun's declination. Access to the Coast Guard College is open to the public but calling in advance to 902-567-3220 is recommended.
 
 
Syracuse New York USA Horizontal Dial 295
Horizontal oval disc with depression in center. Long rod rises diagonally from its surface. Unglazed stoneware
 
 
Syracuse New York USA Statue Dial 299
Two cylindrical stems rise from large base, One stem supports a square, the other supports a disc. Unglazed stoneware
 
 
Syracuse New York USA Armillary Dial 382
A 10 foot 2 inch diameter armillary sundial made of steel. The dial weighs about 8000 lbs.
 
 
Taos New Mexico USA Horizontal Dial 493
A copper and bronze horizontal dial about 15 x 15 inches. The dial was built by the Rocky Mountain Youth Corp, an organization the helps direct the energies of "at risk" youth. Base of dial is clad with 2x4 inch glazed tiles made by all the 5th graders in town. There is a compass rose around the base and on dedication day, an area of wet cement was available those present to make an inscription or hand print.
 
 
Tempe Arizona USA Horizontal Dial 9
A 17 inch diameter bronze horizontal dial, mounted in a metal collar that slopes 5 deg S to correct for Tempe latitude of 33 N. The dial face has radiating hour, half-hour and 15-minute lines, encircled by the inscription "Grow old along with me. The best is yet to be." On the outside of the inscription are Roman numerals from VI to VI. Filling out the outer circle is inscribed "Tempe Garden Club". The dial sits on top of a square pedestal approximately 2 feet high
 
 
Tempe Arizona USA Horizontal Dial 23
A horizontal dial from Picture Rock Sandstone with 24k gold-plated inlaid brass fittings, 25 inches wide by 36 inches long, with gnomon 12.5 inches high. Gnomon is 1.5 inches thick. Total sundial weight 110 lbs. Time is marked in 10 minute intervals. Has Equation of Time and moonlight reading time correction table. Has the time and direction of sunrises and sunsets, the solstices, equinoxes, solar azimuth, and high noon.
 
 
Tempe Arizona USA Equatorial Dial 75
An equatorial dial designed by R. Newton Mayall with a "curved triangular gnomon over a curved face approximately 1ft. wide. Tells the day of the year and standard time noon." Has a plaque explaining the Equation of Time.
 
 
Tenango de Doria Hidalgo Mexico Vertical Reclining Dial 459
A very striking vertical reclining dial 85 x 115 cm created from hand painted tiles, each individually fired in a kiln and assembled at Tenango de Doria by David Canyedo. In addition to hour lines, the dial includes declination lines for the solstices and equinox. The dial includes constellation maps of both the northern and southern hemispheres, a celestial sphere, and rose of winds (compass). The artistry also includes NAHUI OLLIN (the fifth sun which is the era we are living in according to the Aztecs). The dial has an equation of time that allows conversion from local solar time to standard time. The dial was designed to arouse interest of high school students in astronomy.
 
 
Terre Haute Indiana USA Calendrical Dial 586
Via Solaris, a 20x15x4 foot granite, stainless steel and bronze calendrical dial showing yearly equinoxes and summer solstice.
 
 
Terre Haute Indiana USA Horizontal Dial 685
A round bronze horizontal dial with 6 AM to 6 PM hour lines and half-hour lines and Arabic hour numerals. Eight perimeter points and the one central decorative point may represent alignments but no explanation is given. Dial sits on a carved stone column. Base marked 1920 1921 1922 1923.
 
 
Thunder Bay Ontario Canada Analemmatic Dial 466
A very well constructed analemmatic dial about 24 by 11 feet. The dial may be difficult to find, since it is in the center of a field that is devoted to wild grass of the area. Cement markers are used to show the hours and for the central base showing the months where to stand. The hourly markers are corrected for the longitude of Thunder Bay. The site is visited quite frequently by school children and is a great educational tool for dialing.
 
 
Toddsbury Virginia USA Horizontal Dial 69
Brass
 
 
Toledo Ohio USA Equatorial Dial 621
An equatorial projection dial 18 inches wide atop a 3 foot high fluted steel column. Located on the Anthony Wayne Trail Bridge inside the zoo near its entrance, access requires zoo admission. Dial sits atop a three foot high fluted steel column.
 
 
Toms River New Jersey USA Horizontal Dial 507
A horizontal dial about 22 feet in diameter. The dial base is stone and gravel outlined in shore juniper plants. Treated lumber, now gray through weathering, is used for the both the hour lines and the marking Roman numeral hours. Nicely fashioned with a hub of green junipers in the center surrounding a simple wood gnomon. Builder Richard Perez started off just wanting something a little different?and the sundial emerged in 1992 as the main theme of landscaping.