Odegaard Library will be open 24 hours from Friday, March 15 until Friday, March 22 at 5pm. This is a new tradition begun just last Autumn Quarter when ASUW requested that the library be open 24 hours the weekend before finals week.
During the weekend of March 15–17, only UW students, faculty and staff with a current Husky Card may enter the building during the following time periods: Friday, March 15 at 6pm to Saturday, March 16 at noon; and Saturday, March 16 at 6pm to Sunday, March 17 at noon. During finals week, a current Husky Card is required for entry between 8pm and 8am.
The hours of all the UW libraries can be found at http://www.lib.washington.edu/about/hours/.