all day long
Sleep all day.
Di vueltas por las calles el día entero.
I wandered around the streets all day.
I have the whole day off.
Te he estado buscando el día entero.
I've been looking for you all day.
Él estaba enfermo, así que se quedó en cama el día entero.
He was sick, so he stayed in bed all day.
Tom a menudo se sienta el día entero frente a su computador.
Tom often sits in front of his computer all day.
It rained heavily all day.
Estaba agotado después de pasar el día entero enseñando.
I was exhausted after spending the entire day teaching.
Ayer trabajé duramente el día entero.
Yesterday I worked hard all day.