The author created a unified and eternal calendar for the world – a single universal quantum mathematical digital circular matrix. Any analog calendar can be easily transformed into this universal digital loop quantum mathematical matrix. At the same time, this mathematical matrix is itself a super calendar (A basic mathematical cyclic calendar, unlimited in time and space) for the whole Humanity. It can be used for planning long-term space flights. This matrix is calculated only once and can be used by Mankind forever. Introduction of the global universal single eternal digital mathematical calendar in January 1, 2013 would be an important historical event in the life of the United Nations and all the Humanity. The author proposed Ban Ki-moon, the General Secretary of the UN (October 14, 2012 CE), the President of USA Barack Hussein Obama (October 15, 2012 CE) and the President of Russia V.V Putin (October 17, 2012 CE) to a new purely secular single core Mathematical calendar for all Mankind from January 1, 2013.