in the cold light of day

in the cold light of day idiom
Dispassionately, unemotionally, especially at a later time. For example, They had a terrible fight about the mix-up, but in the cold light of day they realized they were both at fault. This expression transfers the illumination of daylight to rational understanding and uses cold to emphasize the lack of passion.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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