Is there a difference between the time you guys close hrs in the winter or are they the as summer.?

I also think there is not a difference in the hours they open at different seasons. But, there is definitely difference in the things that you are allowed to do. For example, no fishing in some lakes, no catching of some kind of fishes, etc. You can find specific information by little bit googling. Or check this page https://nature.mdc.mo.gov/discover-nature/places/busch-august-mem-ca

I never seen hours change