Sundials - World's Oldest Clocks

North American Sundial Society

Merida  

Sundial 538
State/Province:  Yucatan Country:  Mexico
Dial Type:  Equatorial Condition:  Age worn
Latitude:   20° 58' N Longitude:   89° 37' W
Location:
  • On the roof of the Merida Cathedral
 
Description:
  • Generally identified as an equatorial, this stone cylindrical cavity dial uses the extremities of the semicircular dial plate as two independent styles. The dial face is marked with six equally-spaced hour lines with minor subdivisions. The east style casts the 6 AM to noon shadow while the west style casts the noon to 6 PM shadow. No construction date is give but is likely 18th century or earlier.
 
General Information:
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  • Designer:
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