All libraries are CLOSED due to poor air quality. Online services are available.
For updates visit

The Libraries are resuming limited in-person research activities by appointment only as part of the University's Research Restart Plan.
Learn more about the Libraries' entry requirements and available services.

Hours and location

Library hours

  Monday-Thursday Friday Saturday Sunday
Regular 8:30am-8:30pm 8:30am-5:00pm Closed 1:00-8:30pm
Intersession 8:30am-5:00pm 8:30am-5:00pm Closed Closed
Summer 8:30am-5:00pm 8:30am-5:00pm Closed Closed

See building hours below for more details.

For holiday hours and closures please see the full calendar.

Hours for all Stanford University Libraries

Sapp Center building hours


8:00am-8:30pm (open to all)

8:30pm-10:00pm (valid Stanford ID required)

Saturday Closed
Sunday 1:00pm-10:00pm (valid Stanford ID required)
University Holidays  Library hours (valid Stanford ID required)


Robin Li and Melissa Ma Science Library
Sapp Center for Science Teaching and Learning
376 Lomita Drive
Stanford, CA 94305-5070

View map & directions to the Science Library