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"Es la una" is a phrase which is often translated as "it's one o'clock", and "doce" is an adjective which is often translated as "twelve". Learn more about the difference between "es la una" and "doce" below.
es la una(
ehs
lah
oo
-
nah
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. it's one o'clock
Es la una de la mañana. ¡Ya duérmete!It's one o'clock in the morning. Go to sleep!
doce(
doh
-
seh
)An adjective is a word that describes a noun (e.g., the big dog).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
2. (number)
b. twelfth (in dates)
Recuerden que el examen final es el doce de mayo.Remember that the final exam is on the twelfth of May.