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
Sidonia	-	Late Roman, German
Lianne	lee-AN	English (Rare)
Tevye	-	Yiddish
Arevig	-	Armenian
Norbert	NAWR-bert (German, Polish), NAWR-bərt (English, Dutch)	German, English, Dutch, French, Hungarian, Polish, Ancient Germanic
AntÓNio	-	Portuguese