Well going super fast means time would slow down for you. Let's say you blasted off in a rocket and went, say 50% the speed of light. You travel out a huge distance. Time will pass slower for you but time on Earth will be unchanged. You arrive back to Earth. Maybe a year has passed for you but a duration of 20 years will have passed on Earth. So you would have traveled 19 years in to Earth's future yet only a year has passed for you.
I hear this alot but is 365 days not 365 days no matter how fast you are going it's still 1 year