since time and space are relative, then six days could be any length of time that God wants it to be. Of course if God is infinite, then He is not limited by space and time. If he wanted men to experience six days when He created the universe then what’s so hard about that? He could have created it all in six seconds or six billion years. But He said six days. He controls space and time and does not need it nor is He confined to our experience of time. the argument about time is like the argument about “soul sleep”. there is no argument if you understand that time is relative.