AB Montessori observes the following holidays and closures each year.
| Date | Holiday |
|---|---|
| January 1 | New Year's Day |
| January 18 | Martin Luther King Jr. Day |
| February 15 | Presidents' Day |
| April 19–23 | April Break |
| May 31 | Memorial Day |
| June 18 | Juneteenth (observed) |
| July 5 | Independence Day (observed) |
| September 6 | Labor Day |
| October 11 | Indigenous Peoples' Day |
| November 11 | Veterans' Day |
| November 25–26 | Thanksgiving Break |
| December 23–24 | Christmas Break |
| December 31 | New Year's Eve |
AB Montessori will close for the last two weeks of July or August each year for provider vacation. Families will receive a minimum of 4 weeks notice for any planned closure.
In the event of an emergency closure (severe weather, illness, etc.), families will be notified as early as possible via phone and text message.