Sundials - World's Oldest Clocks

North American Sundial Society


Sundial: 456
State/Province:  Arizona Country:  USA
Dial Type:  Vertical Dial Condition:  Good
  Latitude and Longitude: 32° 30.000' N  111° 0.000' W
  • On the south wall of Nanini Northwest Building at 2120 West Ina Road
  • This is a 10 x 10 foot south vertical wall dial with hour lines painted on the wall that are corrected for longitude. A unique feature of this dial is the time scale can be rotated forward or back slightly to compensate for the Equation of Time. However, because only the hours are marked, precise minute reading is difficult. Welded steel was used to make the time marker ring and gnomon.
General Information:
  • Owner: Mr. Steven L. Nanini
  • Designer:
  • Builder:
  • Construction Date: 1983

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