Oh, you are so silly! You’re supposed to put a GPS into your time capsule, dude! Duhhh! Then it will take you back to the exact position on EARTH after your time travel visit!
But here is the sad thing. President Obama, in his 7th year, taxed time travel, collected UPON REENTRY. And with the inflation from the time you left, to return to 2008 now costs $240,000,000,000,000,000,000. So no one comes back any more.
Didn’t anyone watch the movie Millennium? If you go back in time and change something you create a paradox which rips the fabric of events and eventually destroyed the world the travelers were living!