We use the present simple to talk about future events that are scheduled or timetabled or after certain words like when, until, after, before, as soon as
👉 The train leaves at 4 (horario)
👉 Shops close at 6 (horario)
👉 My yoga class is tomorrow at 10 (horario)
👉 I’ll call you when I get home (when…)
👉 I’ll do the dishes before I leave (before…)
We use the present continuous to talk about future plans when we have decided a time and a place with other people. We normally use a future time expression like tomorrow, next week, at 7, etc. It is very common with verbs of travelling, and when we are meeting people
👉 I’m meeting Sally at 7 → I have talked to her and we have arranged to meet (He quedado)
👉 I’m flying to New York tomorrow morning → I have the ticket (Es seguro)
👉 We’re getting married next July → We have probably already made reservations (Es seguro)
👉 I’m leaving very early tomorrow. I’m taking the 7.30 train. (Es seguro)
👉 I’m playing golf with Jack next Saturday. Would you like to come? (Es seguro)
👉 I’m seeing the dentist after class (Tengo cita)
👉What time are you seeing your mother tomorrow? → ¿A qué hora ves a tu madre mañana?
👉What are you doing tomorrow night? → ¿Qué haces mañana por la noche?