If it is speaking of the time then it means "it is".
It depends on the context.
In Spanish las is the plural of la (the)
Example: the girl - la chica, the girls - las chicas.
Time as per your watch - son las tres- it is three o'clock
las montanas son bellas
Son las diez en la Habana. It is 10 in Havana.
que las fecha
It means "the oranges are".
"Como son las chicas" means "what are the girls like" in Spanish.
"Son las dos" is Spanish for "It is two o'clock." It is a way to indicate the time on the clock when it is 2:00.
It could mean either: (1) The quizzes are... OR (2) The pieces of evidence... are OR (3) The proofs are...
Que color son las uvas is Spanish for "what color are grapes?"
'Son las doce de la tarde' means 12 pm. (Time)
Three minus one
it is 3 o'clock
It means " it is _____ o'clock