Calendar Important Dates
Listed below are important dates at AHS for the 2019 - 2020 school year.
| First Day Of School - 9th Grade | Tue, Sep 3 |
| All Grades Attend | Wed, Sep 4 |
| Staff Dev / Workday - No Students | Fri, Oct 11 |
| Grading Day - No Students | Fri, Nov 1 |
| Veterans Day Holiday | Mon, Nov 11 |
| Thanksgiving Break | Wed, Nov 27 - Fri, Nov 29 |
| Staff Dev / Workday - No Students | Mon, Dec 2 |
| Winter Break | Mon, Dec 23 - Fri, Jan 3 |
| Holiday - School Closed | Mon, Jan 20 |
| Grading Day - No Students | Mon, Jan 27 |
| Holiday - School Closed | Mon, Feb 17 |
| Staff Dev / Workday - No Students | Tue, Feb 18 |
| Spring Break | Mon, Mar 23 - Fri, Mar 27 |
| Grading Day - No Students | Fri, Apr 10 |
| Staff Dev / Workday - No Students | Fri, Apr 24 |
| Holiday - School Closed | Mon, May 25 |
| Last Day For Seniors | Thu, Jun 4 |
| Graduation | Fri, Jun 5 |
| Last Day Of School | Fri, Jun 12 |