Union Computing Site The Union Computing Site offers Mac and Windows workstations, printers, and other computing services. Located In Michigan Union open until 7:00 PM Hours & Contact Information Hours Wednesday7:00 am7:00 pmThursdayClosedFriday7:00 am7:00 pmSaturday7:00 am7:00 pmSunday9:00 am12:00 amMonday7:00 am12:00 amTuesday9:00 am12:00 am Contact & Location Michigan Union 530 S. State Street Ann Arbor, MI 48109-1308