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equation of time

noun, Astronomy.
apparent time minus mean solar time, ranging from minus 14 minutes in February to over 16 minutes in November.
Origin of equation of time
First recorded in 1720-30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for equation of time

equation of time

the difference between apparent solar time and mean solar time, being at a maximum in February (over 14 minutes) and November (over 16 minutes)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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