Only open from 10 am to 6 pm on Saturday and closed on Sunday. If you come on Saturday, bring your own food and drink (especially coffee!), since nothing else is open on campus :(
The library is supposed to be open till 4 pm (not 6 pm as I had written previously) on Saturday but staff start kicking you out at 3:45 pm and turn the lights off at 3:55 pm! Not cool at all.