Equation of Time

This page provides a quick snapshot of the variability of the sun's motion over the course of a year. While the sun's Equation of Time is not exactly the same from year to year, for a given calendar date the variation is relatively small, so data is only presented for a "generic" year.

For another way to view this variation that incorporates the sun's change in declination (i.e. "celestial" latitude), please take a look at the sun's analemma.

For background on the Equation of Time, please refer to the sundial corrections page.