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"Una" is a form of "una", a noun which is often translated as "one". "Es la una" is a phrase which is often translated as "it's one o'clock". Learn more about the difference between "es la una" and "una" 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!
la una(
oo
-
nah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
1. (time)