Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of Idaho

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

 
 
Boise Idaho USA Equatorial Dial 344
Equatorial dial 5 ft high, 6 ft. wide and 4 ft. deep. The dial was designed by Pete Swanstrom, built and donated by JST Custom Fabrication Inc. of Boise. The gnomon is of unusual design with a central pivoting elliptical plate and analemmatic cut out. The analemma is marked with 365 individual date marks. Shadow falls on equatorial ring with hours marked from 7am to 7pm and inscribed with lines for every minute (spaced 1/7 inch apart). Indicates time to less than 15 seconds, making it among the most accurate sundials in the world. Indicates true time to the minute, date to the day, and adjusts for Daylight saving time. The Latin inscription should read "Tempus Captum" rather than "Tempus Captus".
 
 
Ketchum Idaho USA Dial 582
This is NOT a sundial! So far, I have been unable to contact the sculptor to get any additional information. Update 8/10/2007 from Brad Needham: Thanks for the question about the Ketchum sundial. It's a puzzling work, and it took me quite a few Google searches to find a bit of the story: evidently a local (to the Ketchum area) sculptor submitted a sundial design to the city, and somehow the deal fell apart after the dial was made but before the sculptor finished the gnomon. So Ketchum is left with all the markers in the street intersection for the equinox, the noon summer and winter solstices, and an analemma (of some sort), but no gnomon to make it all work. http://ketchumidaho.org/pdf/minutes_445.pdf
 
 
Pocatello Idaho USA Vertical Dial 742
A south-facing vertical dial split into two sculptures separated by a walking path. The dial faces are vertical powder coated steel sculptures with cut hour lines. The gnomons are travertine limestone blocks with the top edges pointing to celestial north. The edges of the gnomon stones cast the shadow onto the vertical dial faces. One dial face shows the morning hours, the other shows the afternoon hours. The gnomon styles extend to both sides of each dial face allowing extended time and season use. This sculpture, "PASSAGE OF TIME," was commissioned by the City of Pocatello to represent Pocatello as the "Gate City," historically known as the gateway to the Snake River Plains. The meandering sidewalk path represents passage through both time and space.