OK this has to be the most undiscoverable thing ever. When will someone say that every option needs a visible menu item. Anyway, if you hate the complex “grid” view on your watch, then in Apple Watch, you hard press on the grid view and you can change.
And another strange thing is getting into “Time Travel mode“, if you spin dial then suddenly the time starts to change and I end up in a panic. I think this feature is so that you can see upcoming appointments, but until Alex told me, I did realize another press would bring you back to the real time. It works when you see say the weather or your appointments and is an easy way to scroll forward one day. But man is it confusing!