What'sthe time?/ What time is it?

It's … o'clock. （表示整点）

past （表示半点前）

Ten past seven.

Twenty past nine.

half （表示半点）

It's half past eight.

It's half past ten.

to （表示半点以后）

Ten to seven.

Twenty to four.

Two to two.

quarter （表示一刻钟）

a quarter

A quarter past one.

It's aquarter to four.