ANALEMMATIC : Relating to a scale that shows the seasonal difference between time as shown by clocks and by the sun.
The word is the adjective derived from analemma. One sense of this is a scale shaped like a figure 8, giving the declination of the sun and the equation of time for each day of the year. This shows how clock time differs from that given by the sun (which varies a little season by season because the Earth’s orbit isn’t exactly circular). It derives from Latin analemma for the pedestal of a sundial (and hence the sundial itself), which comes from the Greek word for a prop or support.
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