They wake up at 20:30 however when they wake up agian you can onock it out since it's slow beacuse it's still day time when it turns to night. You also resume your tame and the status bar does not reset.
Tame the mega during the day! It is extremly slower during the day due to wanting a rest. It is a very strong dino, it has been tested to be even stronger than the allo! Be careful if you tame it at night ;) caw