| January 2 | 2020 Classes Begin – Winter Quarter |
| March 7 | SUNM Graduation |
| March 22 | End of Winter Quarter |
| March 23 – March 29 | Spring Break |
| March 30 | Classes Begin – Spring Quarter |
| May 25 | Holiday – Memorial Day |
| June 21 | End of Spring Quarter |
| June 22 – June 28 | Summer Break |
| June 29 | Classes Begin – Summer Quarter |
| July 4 | Holiday – July 4th |
| September 7 | Holiday – Labor Day |
| September 20 | End of Summer Quarter |
| September 21 – September 27 | Fall Break |
| September 28 | Classes Begin – Fall Quarter/ New Class Start Date |
| November 26-27 | Thanksgiving Break |
| December 20 | End of Fall Quarter |
| December 21 – January 4 | Winter Break |
| January 4, 2020 | 2021 Classes Begin – Winter Quarter |
