| August 18 (4:00pm) - September 5 (8:00am) | Moodle and Brightspace shutdown |
| September 4 | Labour Day |
| September 5 - 22 | Week of Welcome (WoW) events (province wide) |
| September 22 | Tuition pre-authorized payment due (on or prior to this date) |
| September 29 | Bursary application due (on or prior to this date) |
| September 29 | Tuition due |
| October 2 | National Day for Truth and Reconciliation |
| October 3 | HCOS Finance Office begins accepting invoices for Lessons and Activities |
| October 3 - 31 | Foundation Skills Assessments (FSAs) - Grades 4 & 7 |
| October 9 | Thanksgiving Day |
| October 28 - Nov 5 | Grad Program Assessments |
| Oct 31 - Nov 3 | Numeracy and Literacy Assessments - Grades 10-12 |
| November 13 | Remembrance Day |
| December 22 (4:00pm) - January 2 (8:00am) | Moodle and Brightspace shutdown |
| December 25 - January 1 | Christmas Break (HCOS offices closed) |
| December 25 - January 5 | Suggested Christmas Break for Home Learners |
| January 13-24 | Grad Program Assessments |
| January 15-26 | Numeracy and Literacy Assessments - Grades 10-12 |
| January 15 - February 14 | Re-enrollment window |
| January 17 - February 14 | Read for Change |
| January 26 (4:00pm) | Report cards published |
| February 15 | New student applications begin processing |
| March 4 - 8 | Grad Program Orientation Week |
| March 11 - 14 & 16 | Heritage Theatre Show Week (Kelowna) |
| March 15 (4:00pm) - March 22 (4:00pm) | Moodle and Brightspace shutdown |
| March 18 - April 1 | Spring Break |
| April 1 | Learning Groups PO use deadline |
| April 7-11 | Grad Program Assessment |
| April 15 | Current school year PO numbers expire (last day for curriculum and lesson purchases) |
| April 15-19 | Numeracy and Literacy Assessments - Grades 10 - 12 |
| April 24 | Next school year PO numbers issued in Encom |
| April 29 | HCOS Connect - Interior (Kelowna) |
| April 30 | HCOS Connect - North (Prince George) |
| May 1 | HCOS Connect - Lower Mainland (Langley) |
| May 2 | HCOS Connect - Island (Nanaimo) |
| May 3 (TBC) | Grad courses without an active date, and any funding associated with those courses, are withdrawn automatically |
| June 2-6 | Grad Program Assessments |
| June 5 | Flex Athletics Banquet (Kelowna) |
| June 10-14 | Numeracy and Literacy Assessments - Grades 10-12 |
| June 14 (9:00am) | Final submission deadline for all Middle School online courses and Grad synchronous online courses |
| June 14 | Graduation Ceremony and Banquet (Langley) |
| June 21 | Graduation Ceremony and Banquet (Kelowna) |
| June 28 (4:00pm) | Report cards published |
| August 16 (4:00pm) - September 3 (8:00am) | Brightspace shutdown |