As a casual ride it would take me close to 2 hours to do that. Then if your job is physically demanding or even on your feet for 8 hours you don't want to be riding home afterwards. Possibly with an ebike or converted to one. My longest single ride ever was 33 miles and I was in pain for a week after that but that was when I first started riding. I hear plenty of people here who ride much longer for recreational rides. You've also got winter coming up and you should have an option (car/ bus) if you don't want to ride in the snow or the rain or just on any particular day. It takes me an hour now to drive 30 miles in a car. Often that turns into 1.5 hours and there isn't even very much traffic.