I am sorry that one of our staff made you feel bad for being in the library late at night. Please know that we are happy that you come to the library, and will do everything we can to make you feel welcomed! Normally, the library opens 24/5. On Fridays and Saturdays, the library closes at 10:00 pm, but the first floor remains open until 2:00 am. Please note that these hours change during holidays, summer session and exam periods. For more information, please visit https://libguides.bc.edu/oneill/hours.