Space society is in the sixth socio-economic formation of Civilization. There are two fundamentally different points of view on Space ideology: 1) geocentric (from Earth to Space); 2) cosmocentric or astrocentric (from Space to Earth). The sixth socio-economic formation (Space) is cosmocentric and is different from the previous five, (purely terrestrial, geocentric) socio-economic formations (primitive community, slave, feudal, capitalist and socialist (communist)). The challenge is to look at the Earth from Space as one of the many spaceships of Civilization and perceive the Earth as a normal part of the nature of Space (cosmocentrizm). Landmarks for astronauts in space will be 88 constellations, not the gods of ancient Egypt, Greece and Rome. In Space there is no earthly top, no bottom, no day, no night, no seasons, no equinoxes, no solstices, no different-day months of the year, no phases of the moon. In Space, in particular, does not make any sense none of the approximately ≈ 40 existing today medieval geocentric clerical terrestrial analog elliptical calendars. For the names of the months they have the names of the ancient Roman and Greek gods and goddesses. For the purposes of astronavigation and astrodynamics in Space, they are completely useless. Therefore, NASA (USA) for the purposes of exclusively astronavigation and astrodynamics, introduced the 13th zodiac Serpentarius (Ophiuchus-Apheuhus) calendar system from January 13, 2016 and openly announced it. The Space society will have a standard 13-month reference mathematical calendar of the year, focused on 88 major constellations of the Universe listed in the Star catalog of 1928, of which 13 zodiac constellations are on the Ecliptic of the Sun. This calendar will show a single time in all the spaceships of Humanity in the Universe, including Earth as one such spaceship. The article presents the fundamental principles of the mathematical standard 13-month reference zodiac calendar.