These phrases can be used to add specific information about the time of an event or action. For example, the phrase “tomorrow morning” tells us that an event will happen the next day, in the morning.
Here are some examples of how the present simple tense is used in planning a future event that is also on a regular schedule or timetable.
Tell me about our date.
Well, how about dinner and this movie that BEGINS at 7 pm.
Tonight? I thought it IS on Saturday.