by day

and by night

during the day; during the night. (Often used in simultaneous clauses for contrast.) By day, Mary worked in an office; by night, she took classes. Dave slept by day and worked by night.

Common Names:

Name	Pronounced	Usage
Alba (1)	AHL-bah (Italian, Spanish), AHL-bə (Catalan)	Italian, Spanish, Catalan
Neeraj	-	Indian, Hindi, Marathi, Gujarati
Astles	['æslz]
Zygmunt	ZIK-muwnt	Polish
Tanika	tə-NEE-kə	African American
Lyra	LIE-rə (English), LEE-rə (English)	Astronomy