When they awake from hyper-sleep, David explains that they have been asleep for 2 years, 4 months, 18 days, 36 hours, 15 minutes. If he is using established temporal units to measure time, then shouldn't he have actually said ''2 years, 4 months, 19 days, 12 hours and 15 minutes?'' Why 36 hours?? Also, how did they travel all that distance in such a short time? The nearest star to us is Proxima Centauri which is just over 4 light years away. That means it takes light 4 years to travel that distance. We also know that the speed of light is a universal barrier that cant be broken so then how did they get where they wanted to in just 2 years? Wormhole? Warp drive?