Posted July 8th, 2020 by Office of the Registrar Last day students can add or substitute F- or Y-term courses on ACORN Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: September 23, 2020 all-day 2020-09-23T00:00:00-04:00 2020-09-24T00:00:00-04:00 Last day students can add or substitute F- or Y-term courses on ACORN.