Actually I'm not quite sure about the clear time, but if you're supposed to start counting the playing time when you take control of Ada my time is probably somewhere around that time (5:59, or 5:58~6:01) I guess... (I took control of Ada at 0:08 and called the chopper at 6:07 so quite possibly 5:59 would be the most accurate suggestion.)

Notify me the exact time if you guys could figure that out otherwise. :)