The time

It's o'clock.	It's past .	It's past .	It's minutes past .
It's a quarter past .	It's past .	It's past .	It's half past .
It's to .	It's to .	It's minutes to .	It's a quarter to .
It's to .	It's to .	It's about o'clock.	It's about o'clock.
Listen and check.