Hmm you forgot the movement from the sun around the central blackhole in the galactic center.
But you also made other wrong assumptions. First you are correct if you imagine a telephone cabin where you magically appear in the exact space you started from. But thats just phantasy and cant work. First its impossible to determin a static piece of room. Thats not real. Relativity says there is no static room. And if you think about it everything moves nothing is static there is no certain piece of room.
Everything that matters is your relative speed to other objects. And time travel can only be done moving (its impossible to stand still anyway. And if you have a lightspeed rocket you would have to fly circles around earth to reach future earth. If you would have one wormhole that leads to the future the end would have to have the same speed as the earth if not it would move away ofcourse and lead you to another part of the universe. You see a conflict where no conflict is because you think a determinable part of space exists.







