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
Rainier	-	French
DaphnÉ	-	French
Sridevi	-	Indian, Telugu, Tamil
Brock	[brɔk]
Jacklyn	JAK-lin	English
Saija	SIE-yah	Finnish