Middle School (Grade 6-8) hours: 8:25 am to 3:25 pm
Upper School (Grades 9-12) hours: 8:25 am to 3:05 pm

Office Hours (School Year) 8:00 am - 4:00 pm Monday-Friday
Office Hours (Summer) 9:00 am - 3:00 pm Monday - Friday
School will be closed during all scheduled holidays

8804 Postoak Road
Potomac, Maryland 20854

Telephone: 301-983-5200
Fax (Admission, Business & Development Offices): 301-983-4620
Fax (All other offices): 301-983-4710

Events Hotline & Faculty/Staff Direct Dial: 301-983-4730