Shouldn't the title read "Real Time - 70 years" instead of "Real Time + 70 years"?
As in real time is "right now", 2008, and if we wanted to "go back" to 1938 we'd need to "subtract" real time, as in "minus", or "-"?
Conversely, if we were to add time (+) to "right now", 2008, we'd find ourselves in 2078, in the middle of a robot war with terminators and stuff.
Here is how I look at it. Your reply was posted at 5:39:27 AM PST. Was that not the real time? It is now about 6:37 AM PST. With respect to your reply that is real time + 58 minutes. For more information, see my tagline.