If you travel to the future then the future is the present to you so time travel is impossible but if you travel to the past then the past would be the present and the present would be the future so you have lived in to future and have traveled to the past, but when you travel back to your previous present aka the future, then you would be in the present and not the future. So how could you time travel?
it's impossible to NOT time travel. time is required for travel. if you don't believe me, check the time, and then travel somewhere and check the time again