Night

Hamsters are Crepuscular which means they are most active at dawn and dusk, but they are often up most of the night. This is because it is the safest time for them when they are in the wild, but it also means they don;t make as good a child's pet as people think. They are often up when a child is going to bed and so they cannot have the quality time needed with their hamster :(. They also don't approve to being woken up ;)