son las tres

it's three o'clock

→ ser
phrase Rare #29,384
it's three o'clock Spanish uses the plural form son with hours other than one o’clock.
SP: Son las tres y cuarto.
EN: It’s a quarter past three.

Son las tres.

It's three o'clock.

Casi son las tres.

It's almost three o'clock.

Son las tres menos cuarto.

It's a quarter to three.

Son las tres de la madrugada.

It's three in the morning.

Son las tres y media.

It's half past three.

Son las tres de la mañana.

It's three in the morning.