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
Chizqiyahu	-	Biblical Hebrew
Huitzilopochtli	-	Aztec and Toltec Mythology
Roman	rah-MAHN (Russian), RAW-mahn (Polish)	Russian, Polish, Czech, Slovak, Ukrainian, Slovene, Croatian, German
Iakob	-	Georgian
Ennis	-	Irish
Yukiko	yoo-kee-ko	Japanese