This page houses the link to the important calendars at the U of A:

http://www.arizona.edu/calendars-events

Specifically:

• Registration Dates and Deadlines: http://www.registrar.arizona.edu/courses/dates-deadlines
• Dates and Deadlines for Non-standard terms: http://registrar.arizona.edu/dates-and-deadlines/non-standard-start-dates
• Final Exam Schedule: http://www.registrar.arizona.edu/students/courses/final-exams

More information for Summer and Winter courses may be found at http://www.summer-winter.arizona.edu/