If time is real how did it come about?

People say time was invented before space incorrect someone has to invent time the big bang occured first and stuff had to come about early humans started,to make calenders to keep track of the sequence of events that would occur throughout time, scientifically the mayans had marked on their calenders 9/11 for a disator u can not predict the future it occures when u get there but if u call the present present now then in twenty years it will be the future right well after the twenty years its notbthe future its the present , past present and future may not be in that order, can u prove it ? Events could be unfolding instead of opening up time is an illusion to make sense of the universe without time would the universe make sense No but if time never existed we would still be living the same way we do today we do not need time it was invented anyway if u can prove to me time isnt an illusion to make sense of the universe I wont ask another question about this ever again