Short Dialogue 5- What time is it?

 

 Mother and son argue before going to bed.
Mother : What time's your class tomorrow?
Son: Half past eight.
Mother : What time do you have to get up?
Son: At eight.
Mother : Half an hour is not enough to have a
shower, have breakfast, take the bus…
Son: Ok, the thing is my favourite programme
starts at 9…
Mother : But, you have to go to class.
Son: I promise that at 09:30 I'll go to class.