vs
QUICK ANSWER
"Cuarenta" is an adjective which is often translated as "forty", and "son las tres" is a phrase which is often translated as "it's three o'clock". Learn more about the difference between "cuarenta" and "son las tres" below.
cuarenta()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
son las tres()
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. it's three o'clock
Son las tres y acabamos de almorzar. ¿Qué tal una siestecita ahora?It's three o'clock and we've just finished lunch. What about a little siesta now?