I don't agree . We begin with time , time is a quantity that we can define or measure by something that has a periodic nature , for example on earth we're measuring time according to the movement of earth , the day is always 24 hours .
but in space the problem is just the reference , but it's not difficult , we can take the movement of any planet around the sun as a reference and count the age of the universe , " we can say for example 2000 mars years " . Although we can't really measure it precisely because the universe has been created since a long time , and the period in which we've been in it is negligible .
No one has a conclusive scientific evidence whether the universe has been created or not and whether it has a beginning and an end , there only some hypothesis such as big bang theory which says that the universe is expanding .
At the end , the idea of the universe is endless is beyond imagination , it has to have limits , we're just tiny beings and perhaps we represent nothing in the scale of the universe , that's why we can't conceive it's magnitude .