The Janesville Athletic Club has been locally owned and operated since 1985, and is consistently voted Janesville’s Best Fitness Center. With the friendliest, most helpful staff in the area, you’ll have fun reaching your fitness goals in a supportive and motivating environment. Staffed Hours: Monday – Thursday 5:00am - 10:00pm Friday 5:00am - 9:00pm Saturday – Sunday 7:00am - 7:00pm