Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of North America

This is a selected listing of sundials in the North American Sundial Society Registry. Click on any dial thumbnail picture or city name to display the full dial description with additional information and images.

 

New York

 
Stony Point New York USA Horizontal Dial Dial 330
This bronze dial measures 22 inches in diameter, with the gnomon tip 10 inches above the marble dial plate. Hours are marked by Roman numerals, half hours by tics. Dial stis atop a stone and cement base.
 
 
Storrs Connecticut USA Pillar Dial 85
Waugh memorial dial. Not oriented on cardinal points. It was rotated to avoid tree and adjacent building shadows. Gift of Mr. & Mrs. Kenneth Lynch Sr., the Alumni Association, and funds raised for the purpose. The stone pillar is 12 ft. high. Constructed by the firm of Kenneth Lynch & Sons.
 
 
Stouffville Ontario Canada Vertical Dial Dial 730
A 46 inch wide by 52 inch high south-facing vertical dial of high density urethane with a 10 mm diameter stainless steel gnomon. Dial face has hour lines with half-hour marks and Roman numerals. Hour lines are longitude corrected. A brass plaque containing the dedication, additional information about reading the dial and an equation of time table is mounted on the building wall below the dial. An informative booklet about church sundials is available in the church.
 
 
Stouffville Ontario Canada Vertical Dial Dial 751
A 42 x 72 inch, 10 inch thick, 3300 pound black granite vertical dial on a 5 foot high steel tube pedestal. Gnomon is a 5/16-inch stainless steel shaft with a dowel-type nodus to mark solar declination. Dial shows EDST with longitude correction. Dial face includes hour and half-hour lines, and equinox and winter and summer declination lines. Dial center is the pivot of the compasses in the Masonic Square and Compass emblem, with oak leaves. Below the dial is a 12 x 72 inch oak plaque inscribed with dedication information and two brass plaques with dial information and EOT graph.
 
 
Stow Massachusetts USA Vertical Dial Dial 48
A wood vertical dial on the south side of a schoolhouse. Has hour lines from 6am to 6pm with Roman numerals at each hour. The gnomon radiates from a plain diamond in the center of the dial.
 
 
Stratford Connecticut USA Vertical Dial Dial 86
Large vertical dial at the Shakespeare Festival Theatre entrance. The dial is formed around a large circular sunburst with Roman numerals at the edge. Gnomon is missing. Dial declines east and is non-functional for this position and location. Above the dial is a shield. The original sundial was a gift of US Time Corp., as Timex was then known. This dial was of sheet metal and is substantially rusted, with pieces missing. The original dial was removed and will be replaced as another gift of Timex with a new dial built by Global Scenic Services with engineering and testing by a Timex engineer. The new dial will use templates from the original dial for replication but is built with modern materials for better weathering. The new dial will be calibrated for EDST.
 
 
Sturbridge Massachusetts USA Horizontal Dial Dial 180
A 1 foot diameter cast iron circular plate, with Roman numerals 5 am to 7 pm. Subdivided into 30 min increments on one ring, 10 minute increments on an adjacent one. Fastened with screws to a large rock. Reproduction of an authentic original cast iron dial from the Samuel Pierce House, Middleton, CT. Plaque reads "In grateful recognition for the leadership and service of Edward L. Clifford, Chairman of the Board of Trustees."
 
 
Sudbury Ontario Canada Armillary Dial 359
A monumental half armillary dial in stainless steel. At one end of 'Polaris Boulevard' which includes Terra, a segment of the globe oriented with Sudbury directly at the top. Celeste is a giant (12.8 meter or 42-foot) stainless steel sundial located at the south end of Polaris Boulevard. It consists of two arches, one which represents the equator in the sky, and one which represents the meridian. A large steel pipe makes up the gnomon of the sundial.
 
 
Suffern New York USA Equatorial and Horizontal Dial 411
Robert Adzema has designed a 10-foot tall, 12-foot long combination equatorial and horizontal dial made out of stainless steel. The equatorial dial has a wide arc showing hours from 6am to 6pm. At the noon hour is a 31-inch analemma illuminated by a 1/4-inch nodus in a rod gnomon. The pedestal holding the dial and rod is designed as the gnomon for an even larger horizontal ground level dial that surrounds the equatorial dial. For this horizontal dial, the hour lines are made of half-inch stainless steel bars are embedded in concrete. An inscription tells how to tell the time.
 
 
Summerland British Columbia Canada Armillary Sphere Dial 952
A steel patinaed armillary sphere about 1.5m in diameter, mounted on a low boulder. The dial is marked by roman numerals etched completely through the equatorial band. Large holes form the hour moment, with smaller holes for the half and quarter hours. The meridian ring also serves as support for the dial. In addition are arctic and antarctic rings. The design of a slot mechanism allows the equatorial ring to be rotated by 15° for Daylight Saving Time. However there is no plaque for the Equation of Time correction to civil time.
 
 
Sun City Arizona USA Horizontal Dial Dial 8
A monumental horizontal dial in a gravel rock garden. Gnomon is 22 feet high, 40 feet long built from a structural steel "I" beam 64 feet long. Gnomon is supported by three concrete triangular legs and is encased in concrete with four shadow-casting style edges. A circular concrete walkway under the gnomon has painted Roman numeral hour markers. This dial had significantly deteriorated and was in danger of demolition in 2011 when rescued by the efforts of Sun City residents, numerous Sundial Mail List letters explaining its significance and, particularly, an advocacy letter by NASS member Roger Bailey. NASS member John Carmichael was instrumental in coordinating these efforts, which led to complete restoration and re-dedication in October, 2011. The dial was a center piece of the innovative Sun City planned community, built in the early 1970's by visionary developer John Meeker.
 
 
Sunderland Maryland USA Horizontal Dial 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 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 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.
 
 
Surrey British Columbia Canada Sculpture/Artwork Dial 934
The sculpture, titled "Gnomon", is a metal clematis leaf about 9ft tall and 3ft 6in wide at its widest point. It varies from about 1 in at the edge to about 4 in in the middle. The base is marked with cardinal directions and a present map of the neighborhood. There are a series of twelve 9 inch disks arranged around the sculpture set at a radius of 9 ft. The disks are positioned every 30 degrees around the circle, and at the north point, is an additional disk for "12 PST". All components of the sculpture are case iron, set into a graveled area. According to accompanying information,"Gnomon, featured in Fleetwood Park’s perennial garden, is inspired by the notion of a sundial marking time. A gnomon is the central part of a sundial that casts a shadow that marks the passage of time. This artwork tells the story of the passage of time in the growth, change, and appearance of Fleetwood’s historic community landmarks.
 
 
Swarthmore Pennsylvania USA Vertical Dial 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 Armillary Sphere Dial 638
An armillary sphere 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 Equation of Time 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.
 
 
Syracuse New York USA Armillary Sphere Dial 382
A 10 foot 2 inch diameter armillary sundial made of black anodized steel. The equatorial band is created by two narrow bands holding in open space 10-inch gold colored Roman numerals to grace each hour from 6am to 6pm. The gnomon is a traditional rod with gold arrow and tail flute. The armillary has arctic and antarctic circles, and a prime vertical that extends only to the horizon circle. The prime meridian has 12 gold flowers spaced every 30 degrees. The dial weighs about 8000 lbs and sits on a small concrete base.
 
 
Taos New Mexico USA Horizontal Dial 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 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.