if he/she is day

:  that male one who is neither speaker nor hearer — compare him, his, it, she, they

: used in a generic sense or when the sex of the person is unspecified

:  a male person or animal

:  that female one who is neither speaker nor hearer — compare he, her, hers, it, they

: used to refer to one regarded as feminine (as by personification)

: used as an alternative to he to refer to a person of unspecified gender

:  the time of light between one night and the next

:  daylight

:  daytime