DuckWeb will be unavailable for much of this weekend while Information Services performs essential maintenance.

The work is scheduled from 7 p.m. Friday, Jan. 19, to 8 a.m. Sunday, Jan. 21. It was rescheduled from mid-December.

DuckWeb is the website University of Oregon students, faculty members and staff use to check grades, view pay stubs and change personal information.

During the maintenance, several related administrative applications also will be unavailable: Banner, the behind-the-scenes side of DuckWeb; AppWorx, a job scheduling service; and DuckDocs, a document management and electronic workflow service.

Anyone with questions can contact the Technology Service Desk by phone at 541-346-4357, by live chat or through the UO Service Portal.