For atleast a nano second we do live in the present and then it becomes past.If there is no present then whats the point in saying there is past.Present is the most important link btw past and future.Its pointless denying the present.Ez, you asked us to follow a timeline ie. what has crossed the line is past and what has to cross is future.The answer you are looking for is there in your question itself.When you cross the line of the past you reach a point which is before future.You are not jumping straight to future from past.You do halt for a sec.There lies your present...

Time Doesn't Go.Time Stays - We Go.
Time Is The Rider Which Breaks In Youth.
I Have Wasted Tim - Now Time Has Wasted Me
Goethe