At first glance, 75 Hard does seem to take up much of your 24 hours. Collectively taking 4 hours to finish, this will get you thinking about how- or WHY- it should even be something you want to do on a tight sched. Yes, the challenge takes 4 hours in total. Yes, that is a lot of time off your schedule. But to my surprise, it didn’t hinder my growth or eat into my hours. In fact, it did the opposite!