Add to ORKGSome properties of time may be conceived geometrically, i.e. envisioned with the help of spatial tools. But it would be incorrect to reduce the time phenomenon to space as it is actually assumed in modern physics and in the theory of unified time-space. Attempting to express the essence of time in a few words it is admissible to assert that time is a computation process. A transition from the present to the past and to the future is a result of calculations carried out by nature. Therefore computer models should be utilized as a basic means for presenting time. Unfortunately computation theories available in science today are mostly unsuitable for the purpose and demand far-reaching generalizations that concern modeling time in particular