an entire day
Aunque tuviese que andar un día entero.
Even if I had to walk for a whole day.
— El espíritu de la colmena (1973)
Tras un día entero marchando bajo el sol ardiente, todos estaban exhaustos.
After a whole day marching under the blazing sun, everyone was exhausted.
Casi me asustó el no verte conectado por un día entero.
I was almost scared when I didn't see you online for a whole day.
It takes a whole day to cook.
Tenía la cara quemada por el sol después de un día entero en la playa.
Her face was sunburned after a whole day at the beach.
Estuvimos esperándote un día entero.
We were waiting for you all day.
No tardamos un día entero en hacer el trabajo de una hora.
We didn't take a whole day to do a job that takes an hour.
— Vivir (1952)