Hayden Library “24/5” Hours

During the Fall and Spring semesters, Hayden Library is open continuously from Sunday morning at 10:00 am through Friday evening at midnight (excluding holidays).  Only currently enrolled ASU students or employees are permitted in the building from midnight to 7:00 am.  You may be asked to verify enrollment more than once during those hours. A valid Sun Card or Pitchfork Card is required.