Elementary kinematics of rest-motion was presented in this journal. Against to classical tradition, motion and rest are concerned in close nonseparable contradictory relation. This dialectical bond are expressed by a dialectical material-ideal field of numbers and a binary set of notions. Every binary pair of the notions describes corresponging aspects of motion and rest giving opportunity to see both kinetic and potential sides of kinematics of real processes. Description of dynamics has also dialectical binary character. The nonforce description of relations between objects, called as "exchange", differs in principle from the classical approach based on the notion of force interaction. "Exchange", in wide sense of this word, is here the exchange by motion, rest, space, material, arbitrary state, etc. The laws of conservation-nonconservation (transformation) of any states and phenomena of nature, including time, but not Newton's laws, are the basis of the exchange. Dialectics of rest-motion considers also time as a contradictory potential-kinetic field of time. In infinite space of the Universe, in accordance with the laws of conservation-nonconservation, the transformation of potential motion, i.e. rest, into kinetic motion, i.e. simply motion, and conversely is continuously occured. Moreover, if rest expresses some material facet of an object, then motion represents its ideal side. In that sense, potential-kinetic time is material-ideal time. Transition of material time into ideal time and, inversely, ideal time into material, takes place at all levels of the Universe. Therewith, total quantity of time is invariable. The law of conservation alike with the law of non-conservation or transformation of time is valid here. Thus, time is conserved, being non-conserved. On the other hand, time is non-conserved, being conserved. The essense of the law of conservation and transformation of time is in that. The above description of physical processes on base of the binary dialectical system of notions and the conservation-nonconservation laws is more effective then the force description at present. Such approach expands our understanding of the phenomena of nature and allows us relatively simply to solve problems which extremely hard to solve by the traditional way.