Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of Ontario

Click on any photo or city name to get more sundial details and more photos.

 
 
London Ontario Canada Helioscope Dial 62
A brass Pilkington-Gibbs heliochronomer aligned to the celestial equator. Rotate the helioscope until the sun shines from the upper hole to the lower plate, then read the time from an accompanying dial. The Pilkington-Gibbs dial includes a patented cam mechanism to adjust for the Equation of Time.
 
 
Long Island New York USA Horizontal Dial 100
A bronze circular horizontal dial about 18 inches in diameter. At the edge of the dial set in concentric rings are the hour lines, half hour lines, quarter hour and five minute marks. Hours are in Roman numerals from 5am to 7pm. Has a thick brass gnomon.
 
 
Los Altos California USA Gnomonic Dial 498
A triangular entry canopy 13 feet height by 128 feet wide by 26 feet deep at the Georgina Blach Intermediate School casts a shadow on the front pavement walkway. The pavement is etched with a gnomonic projection to show the hours and seasons. The dial was created by architects Lisa Gelfand and Andrew Davis who did considerable research for the dial. Their design was submitted to the school district for approval. It's a fun sundial and the students and teachers love it.
 
 
Los Angeles California USA Sculpture Dial 309
A sundial sculpture by Martha Oathout Ayers. More information about this dial is needed.
 
 
Los Angeles California USA Equatorial Dial 77
A bronze equatorial ring dial with taut wire gnomon on concrete pedestal. Ring is inscribed with hour, ten-minute and minute lines. Plaque states the dial indicates correct watch time so observatory staff periodically rotates clamped ring to correct for EOT, longitude and DST. Dial is located adjacent to the Astronomers Monument atop which is a large bronze armillary. The monument recognizes Hipparchus, Copernicus, Galileo, Kepler, Newton and Hershel. The sundial was originally built into the base of the Astronomers Monument but was relocated a few feet to the south during the 2002-2006 remodeling to allow visitors to more closely approach the dial. The dial sits atop a concrete pedestal.
 
 
Los Angeles California USA Calendrical Dial 593
A bronze-faced meridian arc dial 18 feet long, 13.5 feet high and 7 inch wide. Displays the meridian line and is inscribed with month and day markings, seasonal and lunar indicators and constellation figures. An overhead lens projects a solar image on the inscriptions. A large adjacent symbol is positioned to indicate which set of date markings is to be read from the meridian line. In a modern twist, photoelectric sensors embedded in the face of the arc are activated by the transiting spot of sunlight and send a signal to illuminate LED indicators on the 22 foot wide stainless steel ecliptic chart overhead, lighting up the stars of the constellation through which the sun is passing.
 
 
Los Rios Santo Domingo Distrito Nacional Dominican Republic Compound Dial 903
This highly decorated monument sundial is composed of three sundials (Horizontal, Polar and Equatorial) with a common gnomon. All of the dials are built mainly of limestone. The large polar dial (wings), small horizontal dial (tail) and gnomon (body) recreate a “hummingbird”, the universal symbol for diabetes. (The hospital specializing in diabetes is only 500m away). The dials are delineated in half hours and have a variety of graphics on all three dials. In the same location, albeit separated there is another equatorial clock that is five times smaller and has a custom gnomon in the shape of the "little hummingbird”; this sundial is mounted on top of a column and has been adjusted to the local solar time. Nearby is a plaque with the equation of time.
 
 
Louisa Virginia USA Cylindrical Dial 594
An internal cylindrical dial built in a 16 foot diameter, 48 foot tall farm silo now located on a public golf course. The rim of the open top of the silo provides an elliptical shadow line on the inner wall of the silo. This is marked out with red hour lines and black date lines using the low point of the shadow on the wall as the time marker. The artwork has "three panels representing the continuity of man's perceptions of space: past, present, and future. In an abstract sense, the sundial represents the scientific, emotional, and philosophical struggles and triumphs of mankind." Contact Tanyard Country Club Golf Pro Shop at 540-967-1889 to ensure the silo door is open.
 
 
Louisbourg Nova Scotia Canada Horizontal Dial 391
A small horizontal dial 28 cm in diameter on a limestone pedestal. The dial shows local hours with half-hour lines from 4 am to 8 pm in Roman numerals. Trefoils are interspersed with the hour labels. A south-pointing crescent or moon sits across the sub-style and a representational daisy or sun sits below the center of the dial. The base is a limestone pedestal 85 cm tall. The base is a limestone pedestal 85 cm tall. The dial is located in the Fortress of Louisbourg run by the Parks of Canada. The dial is a modern reproduction of a slate dial excavated at the site.
 
 
Louisville Kentucky USA Equatorial Dial 234
ca 16' x 20' Portable equatorial, set up and used for teaching a solar energy class.
 
 
Lucedale Mississippi USA Alignment Dial 820
This is a Veteran's Memorial consisting of a set of five large stainless steel panels with holes that guide sunlight to strike a memorial plaque. The alignment is designed to commemorate the signing of the armistice ending World War One, illuminating the plaque on Nov 11th at 11:00AM
 
 
Lucedale Mississippi USA Analemmatic Dial 834
This analemmatic dial (sometimes called a human sundial) is designed for children. Approximately 16 ft wide, it is constructed of red brick with steel hour marks. The numbers for standard time are large silver and the numbers for daylight saving time are smaller and black. A black steel walkway is located in the center of the dial with embossed months of the year. Children stand on the month. Their shadow marks the time. Large numbers are standard time. Small numbers are daylight saving time.
 
 
Lucedale Mississippi USA Armillary Dial 849
The armillary is constructed of stainless steel with rings approximately 34 inches in diameter. The equatorial ring is a 3-inch band with 1-inch cast bronze Arabic hour numbers showing standard time and 1/2 inch cast bronze numbers for Daylight Saving Time. The other rings are unconventional. Rather than a horizontal ring, the ring is canted to match the latitude. The solstial ring that traditionally runs completely over the N-S vertical meridian is only 3/4 complete, creating an open area from the upper portion of the equatorial band to the southern pole that allows better viewing of the equatorial time ring when standing behind the armillary. The dial can be adjusted for the equation of time by rotating the equatorial ring to align on a plate with month marks set to the equation of time plus longitude offset, allowing the sundial to tell civil time.
 
 
Lynchburg Virginia USA Horizontal Dial 627
A 48 inch diameter bronze horizontal dial on a stone pedestal. Polar gnomon includes a scroll and stylized peacock. Dial furniture includes an hour glass and eagle wings. The perimeter around the dial is inscribed, "TIME LIKE LIFE CANNOT BE RECALLED." The dial sits atop a cylindrical mortared stone pedestal.
 
 
Macedon New York USA Henge Dial 408
A cornfield maze for the summer of 2000 at Long Acre Farms. Theme called "Lost in Time" features a number of sundials. The 400 x 500 foot cornfield maze, called the "largest living sundial", is in the form of a smiling sun with 12 corn hedge "rays" from 8 am to 6 pm that align in azimuth to the hour and half hour for Labor Day, 2000. Within each hedge is a vertical pole holding an "Eye of Kala" (an annulus) 12 feet above the ground that casts a spot of light across a hedge clearing at the appointed time to a sign at ground level. At the center of the maze is a horizontal dial with a 12-foot gnomon. This gnomon forms part of the smiling sun's nose when seen from the air. Just outside the corn hinge is an analemmatic sundial for visitors to tell time before going through the hinge. In the hinge, visitors are given a small altitude card dial that tells Eastern Daylight Time from June - Oct. Admission fee.
 
 
Mackinac Michigan USA Horizontal Dial 183
ca 16 in. square Brass Roman Numerals Three stars at south end of gnomon, Roman numerals 5AM-7PM, hour lines with arrow heads. Dial sits atop a tapered white column.
 
 
Macon Georgia USA Horizontal Dial 226
A horizontal dial 16 inches in diameter located beside the observatory, just outside the museum. Includes hour markings for EST and DST and an EOT graph. Hour lines corrected for longitude. Mounted on a 24 inch high pedestal low enough for children to enjoy.
 
 
Madison Wisconsin USA Horizontal Dial 729
An octagonal limestone horizontal dial with bronze gnomon. Hour lines are hand chiseled with no hour numerals. The noon line includes an inset bronze triangle. Viewing the dial within the garden requires an admission fee.
 
 
Magnolia Arkansas USA Analemmatic Dial 800
A 22 by 17 foot analemmatic dial of stained concrete with Arabic hour numerals of polished brass. The dial perimeter and hour numerals are set in a blue decorative polymer "U" arc, appearing as a large mule shoe that represents the university Muleriders mascot symbol. Dial colors represent the royal blue and gold school colors.
 
 
Manchester Vermont USA Vertical Dial 416
A beautiful vertical declining dial, done in white lines and numerals on the side of a red barn. Made of metal and wood, the overall height is about 15 feet. The dial has a clean, modern design using tapered hour lines and simple gnomon. The Arabic numerals for each hour are graded in size to match the size of their hour line, with the largest at noon and the smallest at 8am and 5pm. The Manchester Journal reported that "the sun clock was installed the day before Thanksgiving 1999, with final adjustments being done just as the sun went down."