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Equation of Time

The Equation of Time complication demonstrates the difference between "true" solar time (that of nature) and "mean" solar time (that of man). As the earth orbits around the sun in an elliptical shape and the axis is tilted - there are only 4 days a year when the day is exactly 24 hours long - April 15th, June 14th, September 1st and December 24th. All other days of the year, the days are shorter or longer - depending on the position of the earth. This watch will show the difference between the "mean" time and the "true" time.
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