| 2018-2019 | 2019-2020 | 2020-2021 | 2021-2022 | 2022-2023 | |
| MC/MPA Mason Fellows Seminar | Jun 25-Jul 9 | Jul 1-15 | Jun 29-Jul 13 | Jun 28-Jul 12 | Jun 27-Jul 11 |
| Mid-Career MPA Summer Program | Jul 11-Aug 9 | Jul 17-Aug 15 | Jul 15-Aug 13 | Jul 14-Aug 12 | Jul 13-Aug 11 |
| Orientation | Aug 27-31 | Aug 26-30 | Aug 24-28 | Aug 23-27 | Aug 22-26 |
| Shopping days | Sept 4-5 | Sept 3-4 | Aug 31-Sept 1 | Aug 30-31 | Aug 29-30 |
| Full-term and Fall 1 classes begin | Sept 6 | Sept 5 | Sept 2 | Sept 1 | Aug 31 |
| Labor Day (HOLIDAY) | Sept 3 | Sept 2 | Sept 7 | Sept 6 | Sept 5 |
| Columbus Day (Federal and State)/Indigenous Peoples' Day (Cambridge) (HOLIDAY) | Oct 8 | Oct 14 | Oct 12 | Oct 11 | Oct 10 |
| Veterans Day (HOLIDAY) | Nov 12 | Nov 11 | Nov 11 | Nov 11 | Nov 11 |
| Thanksgiving recess (HOLIDAY) | Nov 21-23 | Nov 27-29 | Nov 25-27 | Nov 24-26 | Nov 23-25 |
| Last day of fall semester | Dec 20 | Dec 20 | Dec 18 | Dec 17 | Dec 19 |
| January session (optional) | Jan 2-18 | Jan 2-17 | Jan 4-15 | Jan 3-14 | Jan 3-13 |
| Martin Luther King, Jr. Day (HOLIDAY) | Jan 21 | Jan 20 | Jan 18 | Jan 17 | Jan 16 |
| Shopping days | Jan 24-25 | Jan 23-24 | Jan 21-22 | Jan 20-21 | Jan 19-20 |
| Full-term and Spring 1 classes begin | Jan 28 | Jan 27 | Jan 25 | Jan 24 | Jan 23 |
| Presidents' Day (HOLIDAY) | Feb 18 | Feb 17 | Feb 15 | Feb 21 | Feb 20 |
| Spring break | Mar 16-24 | Mar 14-22 | Mar 13-21 | Mar 12-20 | Mar 11-16 |
| Last day of spring semester | May 17 | May 15 | May 14 | May 13 | May 12 |
| Commencement Week | May 27-31 | May 25-29 | May 24-28 | May 23-27 | May 22-26 |
| Commencement Day | May 30 | May 28 | May 27 | May 26 | May 25 |
| Memorial Day (HOLIDAY) | May 27 | May 25 | May 31 | May 30 | May 29 |
This calendar is subject to change.