No human will ever know because time, as humans know it, began with the creation of our original parents, Adam and Eve. Man can only speculate on how old just the earth is. The Bible tells us to concentrate and focus on "the more important things."--Philippians 1:9-11--These include what John 17:3 says: "This means everlasting life, their coming to know you, the only true God, and the one whom you sent, Jesus Christ." Learning about these two is the start to learning about "the real life" that the apostle Paul mentioned at 1 Timothy 6:19. Trying to find out how long the six days actually were or how old the universe is are subjects that Satan uses to keep people from learning what Bible scriptures tell us are the most important things we need to be acting on. This site is full of unimportant things asked about. Very few questions are asked that are actually spiritual, but are a mockery, many even disgusting. It is like sifting through the mire to actually find wholesome educated questions. Satan enjoys all the mockery and detestable questions about God and Christ. IF you want to learn what the Bible teaches, I invite you to go to the international website, www.jw.org and Bible Teachings > Bible Questions Answered.