Time does not exist

Time does not exist. Just think about it, as an object how can it. Time is merely something invented by humans to tell the difference between now and then, then does not exist. People argue the potential of time travel but how is that even plausible if nothing exists but now, it's not like all history is being saved on some hard-drive for future reference and future does not exist on some tape that we can fast forward to have a peek at what's to come. All there is, is now. Any takers?...