How long is a hamster day? RJ Hamster 2 years ago How long is a hamster day? 7300 ÷ 180 = 40.55 human days = 1 hamster day, which indicates that 365 ÷ 40.55 = 9 hamster days = 1 human year. Thus, during the adult phase, nine hamster days are equivalent to one human year. Share this:Print
