The relativity of time is under construction on relativity of simultaneity of the events which are taking place in different places. The author of the theory of relativity Albert Einstein left without change of representation about continuous and infinately divisible time.
Einstein's theory brought in understanding of the world regularities connected with time, the following postulates: - time is not absolute, i.e. the simultaneity of events finds sense in one reference system. The course of time depends on the movement therefore it is relative; - the space and time make the four-dimensional world; - gravity influences for a while: the more gravitation, the more slowly flows time; - the speed of light depending on gravitation can change, but only towards reduction; - the moving body has a stock of kinetic energy: its weight is more, than the mass of the same body at rest. Einstein, having refused a Newtonian concept of absolute time, not just proved that time is always relative, but also strongly coordinated it to the gravitation and speed of a body depending on a reference system. Einstein at the beginning of the XX century most closer approached understanding of relativity of time. According to the theory of relativity time speed directly depends on remoteness of an object from the center of inclination and also speed of the movement of an object. The more speed, the is shorter time. For more clear disclosure of relativity of time it is possible to give an example. The person remains in specially prepared room with one window, and hours for an otmereniye of the spent time. If after several days to ask it how many it stayed in this room, then his answer will depend on calculation of sunsets and sunrises and of hours on which he surely glanced. At its calculations, for example, it stayed in the room 3 days, but if to tell it that the sun was counterfeit, and hours hurried, then all its calculations will lose the meaning. The relativity of time can absolutely clearly be experienced in a dream. Sometimes it seems to the person that his dream lasts for hours, and everything really happens in only a few seconds.