| August 9 | - August 14 | Official Moving Week |
| August 27 | | School Tour/Orientation/Open House 3:00pm - 5:00pm |
| August 27 | | School Picnic 5:00pm - 7:00pm |
| August 30 | | First Day of School - Grades 1-12 |
| August 30 | | Kindergarten Orientation 9:00am - 10:30am |
| August 31 | | First Regular Day of Kindergarten |
| August 31 | - September 2 | High School Retreat |
| September 3 | | No School - Labor Day Recess |
| September 6 | | No School - Labor Day Recess |
| September 13 | | Meet-The-Teacher Night - Grades 1-12 - 7:00pm |
| September 13 | | Hot Lunch program begins |
| September 13 | | Race for Education Kick-Off - Grades K-12 |
| September 16 | - September 17 | Middle School Retreat |
| October 11 | | No School - Columbus Day - Teacher In-Service Day |
| October 19 | | Junior High Leadership Conference - Lancaster |
| October 22 | | Race for Education / Kauffman's BBQ |
| October 28 | | Picture Day - Grades K-11 |
| November 8 | | ACSI Spelling Bee - Grades 5-8 - Lancaster |
| November 11 | - November 12 | No School - Teacher In-Service |
| November 17 | - November 19 | High School Leadership Conference - Black Rock, Quarryville, PA |
| November 22 | | Thanksgiving Feast Setup - Grades 2 & 3 |
| November 23 | | Thanksgiving Feast - Grades 2 & 3 |
| November 24 | - November 29 | No School - Thanksgiving Recess |
| December 13 | | Secondary Christmas Program |
| December 16 | | Elementary Christmas Program |
| December 22 | | Christmas Chapel - Grades K-6 - 8:45am - 9:30am |
| December 23 | - December 31 | No School - Christmas Recess |
| January 17 | | No School - Teacher In-Service |
| January 19 | | ACSI Geography Bee - Grades 3-8 - Hershey Free Church |
| January 20 | - January 21 | Mid-Term Exams - Grades 9-12 |
| January 31 | | ACSI Creative Writing Festival Deadline - Grades 4-12 |
| February 11 | | Salt & Light Banquet |
| February 21 | | No School - Presidents' Day |
| February 22 | | Elementary School Open House 10:00am - 12:00pm and 7:00am - 8:30pm |
| February 23 | | Elementary Open House 10:00am - 12:00pm |
| March 3 | | ACSI Math Olympics - Grades 3-8 - Lancaster |
| March 11 | | Grandparents' Day |
| March 15 | | ACSI High School Fine Arts Festival - Lancaster |
| March 18 | | ACSI Elementary Speech Meet - Grades 3-6 - Allentown |
| April 1 | | No School for Grades K-2 only - Parent/Teacher Conferences - Grades K-2 only - School in session for Grades 3-12 |
| April 8 | | ACSI Junior High/High School Speech Meet - Grades 7-12 |
| April 11 | - April 15 | Stanford 10 Achievement Testing - Grades 1-9 |
| April 16 | | Spring Benefit Auction, Campbelltown, PA |
| April 20 | | Easter Chapel - Grades K-6 - 8:45am - 9:30am |
| April 21 | - April 29 | No School - Easter Recess |
| May 5 | | MACSA Track Meet - Messiah College - Grades 6-8 |
| May 6 | | MACSA Track Meet - Messiah College - Grades 9-12 |
| May 6 | | ACSI Fine Arts Festival - Middle School - Hershey Free Church |
| May 9 | | HCSA Annual Meeting - 7:00pm - Main Campus Worship Center |
| May 16 | | Secondary Spring Concert - 7:00pm (EFCH Sanctuary) |
| May 19 | | Elementary Spring Concert - 7:00pm (EFCH Sanctuary) |
| May 24 | - May 25 | Senior Final Exams |
| May 27 | | Kindergarten Field Day - Main Campus - 9:30am - 11:15am |
| May 27 | - June 2 | Senior Trip |
| May 30 | | No School - Memorial Day |
| May 31 | | Final Exams - Grades 7 & 8 (Full Day of School) |
| June 1 | - June 2 | Final Exams - Grades 9-11 (Noon dismissal) |
| June 1 | | End of Year Class Trips - Grades 6-8 |
| June 2 | | Kindergarten Step-Up Program - 9:00am |
| June 2 | | Elementary Field Day - Grades K-5 |
| June 3 | | Last Day for Students (Noon dismissal) |
| June 3 | | Academic Awards Program - Grades 7-12 - 8:20am - 9:50am |
| June 3 | | Commencement Practice (Juniors & Seniors) |
| June 3 | | High School Commencement |
