First of all, thank you for the comments.
I do not want to say anything about the truth or falseness of the Genesis account. I leave that up to you to decide. I do not think that any of this reasoning proves something in one way or the other. But it can be interesting though.
The last comments explains quite well what I mean. It is full of paradoxes, and very interesting to hear what other people think about this subject.
Time is the fourth dimension of the universe (yes I know about spring theory and multiverse theories, but they do not change much for this paradox). Time is not something we just invented. It is related to the other dimensions and to matter in the universe by physical laws. In that way it is a property of the universe.
If something or someone is not inside the universe there is no time neither any other dimensions for that person. That is why it does not sound strange that God is without beginning and end. It could not be different. For Jesus this is different, so that is why my question or thoughts.
For our friend from Texas I have also something to say: Maybe I was a bit lazy and did not check the spelling, but I think the meaning of my comments was clear (to the others anyway). Not everybody cares that much, and not everybody is an American (yes there are people outside America, who use English only as a second (or third) language. I will try to take a bit more care at spellings issues. But I won't discuss this any further as it is off topic.
About your view on time that it is just a human invention and does not really exist, I was quite surprised. Time is something we can measure. There are a lot of laws concerning the time, think about the laws of relativity of Einstein for example. You could not say that we just invented the earth because it is very convenient to 'walk on'?
About the definition of the universe, I though this is something well defined in scientific terms. It is not everything that exists anywhere. (Or maybe that is the same but it is surely not the scientific definition)
Of course there are some assumptions in my question. I know that assumptions are the mother of all errors. But there always are assumptions. It is a religious discussion board, and religion is all assumptions.
I hope this clears things up a bit for you. By the way, thank you for your comments and remarks they are valued.