Time travel is the concept of moving between different points in time in a manner analogous to moving between different points in space, generally using a theoretical invention known as a time machine. Time travel is a recognized concept in philosophy and fiction, but has a very limited support in theoretical physics, usually only in conjunction with quantum mechanics or Einstein–Rosen bridges.
A science fiction novel written in 1895 called The Time Machine, by H. G. Wells, was instrumental in moving the concept of time travel to the forefront of the public imagination, but the earlier short story "The Clock That Went Backward", by Edward Page Mitchell, involves a clock that, by means unspecified, allows three men to travel backward in time. Non-technological forms of time travel had appeared in a number of earlier stories such as Charles Dickens' A Christmas Carol. Historically, the concept dates back to the early mythologies of Hinduism (such as the Mahabharata). More recently, with advancing technology and a greater scientific understanding of the universe, the plausibility of time travel has been explored in greater detail by science fiction writers, philosophers, and physicists.
Time becomes like the given image.
Technically you cannot travel in time, but theoretically it is possible. To travel in time, first you should follow the rules of time travel, secondly you should travel in the speed of light and you a can only travel past , even traveling to the past is limited only till your father is there or a time in which time machine is already created because time travel is something that needs two ends, otherwise you cannot come back to your time.
You may also travel in the future but you may not know which future you have landed in as the future is not defined, keeps on changing ever time.
This can be seen in the movie - "Back to the future part 2".
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