| All events are subject to date and time change without notice. |
| Thu, 26 Nov 09 | Thanksgiving recess | |
| Wed, 9 Dec 09 | Last day of classes and laboratory sessions | |
| Thu, 10 Dec 09 | Reading Day - no classes or finals | |
| Fri, 11 Dec 09 | Final examinations begin | |
| Mon, 14 Dec 09 | 2009 AGU Fall Meeting | |
| Fri, 18 Dec 09 | Final examinations end | |
| Sat, 19 Dec 09 | Winter Commencement/Graduation | |
| Sat, 19 Dec 09 | Residence halls close | |
| Wed, 13 Jan 10 | Classes begin | |
| Mon, 18 Jan 10 | Martin Luther King Jr. Holiday - no classes | |
| Mon, 25 Jan 10 | Last day to add classes for credit from zero units using only a Change of Schedule form | |
| Sat, 30 Jan 10 | Arizona Meteorite Exhibition | |
| Mon, 1 Mar 10 | 41st Lunar and Planetary Science Conference | |
| Tue, 9 Mar 10 | Last day to drop a class with a grade of "W" (if passing) or to change to or from audit grading | |
| Sat, 13 Mar 10 | Spring recess | |
| Wed, 5 May 10 | Last day of classes and laboratory sessions | |
| Thu, 6 May 10 | Reading Day - no classes or finals | |
| Fri, 7 May 10 | Final examinations begin | |
| Fri, 14 May 10 | Final examinations end | |
| Fri, 14 May 10 | Spring Commencements | |
