by day
idiom
: during the day : in daylight
She's a student by day and a waitress at night.
The area looks a lot nicer by day.
Examples of by day in a Sentence
Recent Examples on the Web
Pilots are scheduled by day and can only accrue so many hours on duty before they are maxed out and unable to work, including hours spent delayed in airports.
—
Anna Giaritelli, The Washington Examiner, 10 Oct. 2025
So Schiller worked with Cawood to make a short film using AI that starred his son as a vet-ninja (veterinarian by day, ninja by night).
—Todd Spangler, Variety, 9 Oct. 2025
In American Psycho—costume designed by Isis Mussenden—Christian Bale plays businessman Patrick Bateman, who is all suave and sleek in his Cerruti suits by day.
—Christian Allaire, Vogue, 9 Oct. 2025
Style it with sneakers and a denim jacket by day, then swap in boots or strappy sandals to dress it up at night.
—Rosie Marder, Travel + Leisure, 7 Oct. 2025
See All Example Sentences for by day
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Anna Giaritelli, The Washington Examiner, 10 Oct. 2025
So Schiller worked with Cawood to make a short film using AI that starred his son as a vet-ninja (veterinarian by day, ninja by night).
—Todd Spangler, Variety, 9 Oct. 2025
In American Psycho—costume designed by Isis Mussenden—Christian Bale plays businessman Patrick Bateman, who is all suave and sleek in his Cerruti suits by day.
—Christian Allaire, Vogue, 9 Oct. 2025
Style it with sneakers and a denim jacket by day, then swap in boots or strappy sandals to dress it up at night.
—Rosie Marder, Travel + Leisure, 7 Oct. 2025
See All Example Sentences for by day
Cite this Entry
“By day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by%20day. Accessed 21 Oct. 2025.
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