All dates subject to change based on MCPS calendar
| April 12 | Registration opens at 12pm for both sessions |
| May 1 | Registration opens for non-MCPS students (county residents only) |
| May 26 | Registration for session 1 (mostly A semester) courses ends |
| June 26 | Registration for session 2 (mostly B semester) courses ends |
| June 28 | Session 1 begins |
| July 4 | Non-instructional day |
| July 18 | Session 1 ends |
| July 20 | Session 2 begins |
| August 8 | Session 2 ends |
| August 11 | Summer Commencement Rehearsal, 10:00AM, Richard Montgomery HS |
| August 15 | Summer Commencement, 11:00AM (graduates must arrive at 10:00AM), Richard Montgomery HS |