Present simple for fixed future events (schedules, timetables and itineraries)
When talking about schedules, timetables and itineraries, the present simple tense is used to refer to a future event that is planned and is not likely to change:
I
have
a meeting on the 15th, but I'
m
free on the following day.
What time
is
your flight?
The last train to Rome
leaves
at 22.30.
On day 6, we
visit
the pyramids.
His father
retires
in two years.
Christmas Eve
is
on a Tuesday this year.