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. 6, to 8 a.m. Sunday, Jan. 8. It was rescheduled from the previous weekend.

For students who need to make changes to winter term registration before a deadline, the Office of the Registrar notes that DuckWeb is scheduled to be available most of Sunday. Anyone who isn't available that day is encouraged to use the "Email Us" button on the Office of the Registrar website, providing details of their desired change.

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, some 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.

In addition, new students and new employees won't be able to claim their Duck ID accounts during the maintenance.

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