If you want to ask the time in Spanish you must say:

-Que hora es? (What's the time?)
-Tienes hora? (do you have the time?)

To tell the time in Spanish you must use the following:

-Las diez en punto (ten o'clock)
-Las diez y diez (ten past ten)
-Las diez y cuarto (a quater past ten)
-Las diez y media (half past ten)
-las once menos veinte (twenty to eleven)
-las once menos cuarto (a quarter to eleven)