User blog comment:Pizza85079/how Long/@comment-35047726-20180319162400

The Aurora has a data log somewhere you can download that gives you a hint. The surving Aurora computers run a scan for any surviving passengers 4 hours after the crash. It records you and one other passenger. That passenger's lifepod floatation failed though leading to it sinking to like 300m. In the audio that the passenger has, it states a dragon is outside trying to tear up the pod which is the result that you find later on. So even though everyone else is dead it is safe to assume less than a few hours knocked out max.