Travelling in time is possible

The sunlight that gives you warmth takes 8.56 minutes to get upto earth, This means every time you look at the sun, you see the sun that happened 8.56 minutes old, Doesn't it mean that you saw past.?
Definitely you did saw past, not exactly much more as in movies but probably yes!

So if you somehow got chance to read physics, you might've known that time is a dimension, So one the same distance to the vertically opposite dimension as sun does live, if you saw something there, it will be the future too.
In same aspect If you maintained the required speed, dimension and position, The thing you see will be future.