With it being the Friday after Thanksgiving, many offices are closed to observe a four-day weekend. Knoxville City Hall and the Marion County Courthouse remain closed all day today. The Knoxville Public Library is open limited hours on Friday, from 10am-2pm. The Knoxville Recreation Center is open for normal hours, but there are no fitness classes scheduled. The post office and all banks in Knoxville will be open for regular business hours.