| 09/11/2021 First Day of School | 09/18/2021 |
| 09/25/2021 | 10/02/2021 |
| 10/09/2021 | 10/16/2021 |
| 10/23/2021 | 10/30/2021 |
| 11/06/2021 | 11/13/2021 |
| 11/20/2021 | 11/27/2021 Thanksgiving (no school) |
| 12/04/2021 | 12/11/2021 |
| 12/18/2021 Last Day of School | |
| Previous Semester Calendar | |
| School Location: Winston Churchill High School, 11300 Gainsborough RD, Potomac, MD 20854 Mailing Address: 14738 Pommel Dr, Rockville, MD 20850 Tel: (301) 541-7180; E-mail: Support@hcs-pt.org | |
| Note: The calendar is for planning purpose only. The dates and hours are subject to change or cancellation due to weather or other events. | |