sorry for delay in reply. Out of town and touch. I find myself having a difficult time trying to pin down an exact time frame. While i believe the bible gives us a good framework, i am not convinced it intends to give us a comprehensive one. I have no problem with 8-10,000 years, yet don’t find myself resistant to tens of thousands. My view of young earth/ old universe (comparatively) actually has more to do with time dilation and Einsteins relativity laws. They would probably not be considered mainstream christian concepts, though a number of cosmologists (christian) are beginning to consider the possibility, as so often is the case, that christian and secular viewpoints aren’t always right or wrong but complementary, that is, if either or both parties are willing to stretch their science guy minds and consider possibilities. What is believe includes concepts of both big bang (as it now stands, which is, all over the place), singularity, and the effects of gravity on time. Seeing as how science would readily admit that while a million years is “passing” in one part of the universe, mere seconds or minutes may be expiring in another, i dont see any inherent problem in six days occuring in one “location” while millions or billions of years of time are occuring in another. I’m sure our evolutionist friends will scoff, not because they can disprove it, but it may not accord with their interpretive worldview. As to exact times, i sincerely have no idea. There is no way for any of us to know without doubt. I’m just saying i don’t see an “old” universe and a particular six day period specified in Genesis has “having” to be in conflict, especially considering what we now know, and don’t know, about time itself. Sorry to be so wordy. Still working through it. Thanks for the question.