We use the present continuous for the future for personal arrangements .
This is my schedule for next week.
Monday I am going to school.
Tuesday I am travelling to Venice.
Saturday I am attending a business meeting.
RULE! In all these examples , I have already decided and arranged to do these things.
I am doing something tomorrow= it is something arranged and I have decided to do it.
Paul isn’t going to play tennis next Sunday. He has hurt his arm.
A. What are you going to do on Saturday? ( Not: ‘ What do you do on Saturday?”
B. I am visiting my aunt .
We use the present simple when we talk about timetables , programmes etc ( for public transport , cinemas etc) :
- Our train leaves at 1:30 , so I need to be at the station by 11.30 .
- What time does the concert start this evening?
We can also use the present simple to talk about people if their plans are fixed like a time table .
- I start my lesson on Monday .
- What time do you finish your class tomorrow?