So you would confine the creator by the laws He created? A supernatural event this was, yet it is limited by a constraint of waiting for the light to travel? If you can find a scientist that can create stars by commanding them to exist, then perhaps we can figure out God’s limits by asking the scientist. Otherwise, Genesis 1 indicates days, not years. To make any other claim is to accept man’s feeble knowledge before God’s truth and eyewitness account.