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.

 
 
Wooster Ohio USA Vertical Dial 799
A vertical dial on a 15 x 40 foot section of a second story brick wall declining 11° east. The gnomon, hour lines and 7 am to 4 pm Arabic hour numerals are aluminum.
 
 
Georgetown District of Columbia USA Vertical Dial 798
A vertical dial, perhaps one foot square, above the front door of the Georgetown University Astronomical Observatory (the Hayden Observatory). The dial face has Roman hour numerals near its perimeter.
 
 
Cranford New Jersey USA Horizontal Dial 797
A 15 foot diameter horizontal dial with 5 foot high welded stainless steel plate gnomon. The dial face is elevated 18 inches by a white marble-faced platform above a 50 foot diameter concrete plaza that includes inset stainless steel hour line extensions. The dial face is rimmed with Bluestone and has elevated stainless steel hour lines for 4 am to 8 pm and elevated three inch stainless steel Arabic hour numerals. Cardinal directions are marked with elevated 6 inch stainless steel letters.
 
 
Shoreline Washington USA Analemmatic Dial 796
An 8 foot diameter concrete and pebble analemmatic dial with engraved stainless steel inserts for central date line and simple instructions for use. The dial face is raised one foot on a fluted column above the perimeter concrete and stainless steel walkway and has stainless steel Arabic hour numerals for 6 AM, 12 PM and 6 PM. The walkway has stainless steel inserts showing hour lines, magnetic north, true north, winter solstice, equinox and summer solstice directions.
 
 
Seattle Washington USA Vertical Dial 795
A 4 foot wide by 1.5 foot high etched glass plate vertical dial. The gnomon is formed by crossed bars several inches behind the plate and casts its shadow on hour line analemmas. Roman hour numerals for 10 AM to 4 PM are scribed under each analemma; other hours are Arabic. Solstice and equinox lines are scribed across the plate, as are narrow lines at 10 day intervals. Months of the year are scribed about the plate perimeter. A description of the dial is marked on the left side of the plate and the fountains are visible through the plate
 
 
St. Petersburg Florida USA Equatorial Dial 794
A very large bowstring equatorial dial. The outer diameter of the equatorial ring is 26 feet, the height of the meridian ring is 22 feet above the base and the gnomon rod is 26.5 feet long, making this possibly the largest bowstring dial known at this time. The equatorial ring is marked on two faces with large Roman hour numerals for 7 AM to 5 PM. The dial base includes a large compass rose marked with major directions.
 
 
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°.
 
 
Senatobia Mississippi USA Vertical Dial 792
A south facing vertical dial placed above a window high on a wall of a high school. The dial face includes hour lines and Arabic hour numerals 6 AM to 6 PM. The dial is a separate plate affixed to the wall. The dial may be viewed from College Street side of the building.
 
 
Seattle Washington USA Vertical Dial 791
A south facing vertical dial on a chamfered triangular pillar. The gnomon is slightly bent. The dial face includes hour lines with Arabic numerals for Pacific Standard Time and PDT, the approximate coordinates and the magnetic declination.
 
 
Scarborough Ontario Canada Equatorial Dial 790
A 45 inch diameter bronze equatorial ring dial with an arrow-pointed rod gnomon. The dial is mounted atop a 36 inch square pink granite plinth with chamfered corners sitting on a concrete base.
 
 
Northern Bay Newfoundland Canada Armillary Dial 789
An approximately 24 inch diameter steel and aluminum armillary dial with wrought iron scrollwork base. The equatorial ring includes an aluminum plate inscribed with hour, half-hour and five minute marks showing time from 5 AM to 7 PM. A plaque on the pillar below shows combined corrections for EOT and longitude. The dial is mounted on a 10 inch fluted concrete pillar, reinforced with steel rebar.
 
 
Howell Michigan USA Analemmatic Dial 788
A 16 by 20 foot, two-tone concrete analemmatic dial with 7 AM to 8 PM Arabic hour numerals on 12 inch round stamped concrete disks. Instructional and use information is shown on impressed lettering colored concrete plates.
 
 
Falls Church Virginia USA Vertical Dial 787
A large vertical dial on the southwest brick wall of a private home. The hour lines are square PVC stock. Arabic hour numerals for noon to 7 PM are brass plated figures mounted on brass plaques. The dial declines 54 degrees from south to west. The ends of the hour lines indicate the solstices except for several long summer hour lines. The equinoctial points are marked by red glass inserts on the hour lines.
 
 
Capitola California USA Equatorial Dial 786
A wrought iron equatorial dial with an arrow rod gnomon. Equatorial band and support have iron scroll work depicting a bow and arrow. Dial is painted and hour numerals are obscured.
 
 
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.
 
 
Quincy Illinois USA Analemmatic Dial 784
A 10 foot x 18 foot analemmatic dial built of Keystone Blue granite from the quarry in Elberton, Georgia. Hour markers for 7 AM to 5 PM show Arabic numerals and identify the organizations donating to fund the dial. Each hour marker depicts the morphology of a leaf from a tree located in the nearby arboretum. The hour markers are 15 inches in diameter and 6 inches thick, weigh 102 pounds each and are placed flush with the soil to reduce potential for vandalism.
 
 
Farmington Utah USA Horizontal Dial 783
A 28 x 20 x 2 inch sandstone horizontal dial with a 1/2-inch thick, hand-tooled copper gnomon. Dial face has Arabic numerals and hour lines corrected for local longitude. Dial was hand carved with carbide chisels and maul but using techniques and natural stone used to create ancient Native American petroglyphs found in the southwest USA. Dial is mounted 2 inches above a sandstone base weighing 400 pounds by brass leveling pins; this mounting makes the dial appear to "float" above the stone base. A "Desert Varnish" finish has been applied to the dial face using a natural process that mimics what naturally happens to exposed sandstone over several thousands of years. The natural color of the stone is exposed by the carving process to create a color contrast as might be seen in a Native American petroglyph. Dial is located in the front yard of a private residence. Viewing can be arranged by contacting the owner by email at theoperativemason@gmail.com
 
 
Muncie Indiana USA Equatorial Dial 782
A 9.5 inch wide bowstring equatorial dial built using the aluminum photo drum of a xerographic copier machine. The gnomon is stretched fishing line. Hour lines and numerals are marked by lead pencil and include 5-minute marks. The hour ring can be rotated to set for standard or daylight saving time and the elevation angle is adjustable. The dial is mounted on the deck railing of a swimming pool. This dial is located in a private home. Viewing can be arranged by contacting the owner by email at wardio@comcast.net or by telephone at 765-289-5890.
 
 
Calgary Alberta Canada Analemmatic Dial 781
A school yard 6 by 4 meter analemmatic dial of pigmented concrete. The Sunclocks registered design has two hour ellipses, the outer one for standard time, the inner one for daylight saving time. The zodiac table is larger for the fall and winter periods so the design is really two sundials in one. Longitude correction is included. The plaque provides instructions in French and English and notes the dial marks the 50th anniversary of Ecole Banff Trail. The plaque instruction to stand on the current month is misleading; the user should straddle the dial centerline to avoid an offset error.
 
 
Windsor Ontario Canada Armillary Dial 780
A simple armillary dial about two feet in diameter with an equatorial hour ring. The dial is mounted atop a tall, black cylindrical pillar within a formal garden of Willistead Manor. The manor is open to the public on selected days.