Concordia Lutheran High School 2025-2026 Calendar http://clhscadets.tandem.co/ Key dates for Concordia Lutheran High School. en-us 8/4/25 - 8/8/25 Teacher In-Service http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57574 57574-concordialutheranhigh@intand.com 8/6/25 - 8/7/25 Back to School Registration http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57575 57575-concordialutheranhigh@intand.com 8/12/25 New Student Orientation http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57576 57576-concordialutheranhigh@intand.com 8/13/25 First Day of School http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57577 57577-concordialutheranhigh@intand.com 8/20/25 Parent Back to School Night http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57578 57578-concordialutheranhigh@intand.com 8/22/25 Retreat Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57579 57579-concordialutheranhigh@intand.com 9/1/25 Labor Day - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57581 57581-concordialutheranhigh@intand.com 9/19/25 Koinonia Service Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57580 57580-concordialutheranhigh@intand.com 9/22/25 - 9/26/25 Homecoming Week http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57582 57582-concordialutheranhigh@intand.com 10/10/25 End of 1st Quarter http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57583 57583-concordialutheranhigh@intand.com 10/13/25 2nd Quarter Begins http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57585 57585-concordialutheranhigh@intand.com 10/13/25 Columbus Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43648 43648-concordialutheranhigh@intand.com 10/13/25 Grandparents Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43649 43649-concordialutheranhigh@intand.com 10/13/25 NHS Induction Ceremony http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57584 57584-concordialutheranhigh@intand.com 10/15/25 PSAT Testing Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57586 57586-concordialutheranhigh@intand.com 10/23/25 Parent Teacher Conferences http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57587 57587-concordialutheranhigh@intand.com 10/24/25 Fall Break - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57588 57588-concordialutheranhigh@intand.com 10/27/25 Fall Break - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57589 57589-concordialutheranhigh@intand.com 11/2/25 Daylight Saving Time Ends http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43651 43651-concordialutheranhigh@intand.com 11/7/25 Concordia Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57590 57590-concordialutheranhigh@intand.com 11/11/25 Veteran's Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43650 43650-concordialutheranhigh@intand.com 11/26/25 - 11/28/25 Thanksgiving - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57591 57591-concordialutheranhigh@intand.com 11/27/25 Thanksgiving http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43652 43652-concordialutheranhigh@intand.com 12/6/25 Christmas Gala Fundraiser http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57592 57592-concordialutheranhigh@intand.com 12/14/25 Christmas at the Embassy http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57593 57593-concordialutheranhigh@intand.com 12/17/25 - 12/19/25 Semester Exams http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57594 57594-concordialutheranhigh@intand.com 12/22/25 - 1/2/26 Christmas Break - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57595 57595-concordialutheranhigh@intand.com 12/25/25 Christmas Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43653 43653-concordialutheranhigh@intand.com 1/1/26 New Year's Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43654 43654-concordialutheranhigh@intand.com 1/5/26 In-Service Day - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57596 57596-concordialutheranhigh@intand.com 1/6/26 3rd Quarter Begins http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57597 57597-concordialutheranhigh@intand.com 1/19/26 MLK Day - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57598 57598-concordialutheranhigh@intand.com 1/19/26 Martin Luther King Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43655 43655-concordialutheranhigh@intand.com 2/12/26 Parent Teacher Conferences http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57599 57599-concordialutheranhigh@intand.com 2/13/26 eLearning (TLSP In-Service Day) http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57600 57600-concordialutheranhigh@intand.com 2/16/26 Presidents Day - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57601 57601-concordialutheranhigh@intand.com 2/18/26 Ash Wednesday http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=58429 58429-concordialutheranhigh@intand.com 3/4/26 SAT Testing - eLearning http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57602 57602-concordialutheranhigh@intand.com 3/8/26 Daylight Saving Time Begins http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43658 43658-concordialutheranhigh@intand.com 3/12/26 End of 3rd Quarter http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57603 57603-concordialutheranhigh@intand.com 3/13/26 In-Service - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57604 57604-concordialutheranhigh@intand.com 3/16/26 4th Quarter Begins http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57605 57605-concordialutheranhigh@intand.com 3/30/26 - 4/6/26 Spring Break - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57606 57606-concordialutheranhigh@intand.com 4/3/26 Good Friday - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57607 57607-concordialutheranhigh@intand.com 4/5/26 Easter http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43660 43660-concordialutheranhigh@intand.com 4/6/26 Easter Monday - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57609 57609-concordialutheranhigh@intand.com 5/4/26 - 5/8/26 AP Exams http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57610 57610-concordialutheranhigh@intand.com 5/11/26 - 5/15/26 AP Exams http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57644 57644-concordialutheranhigh@intand.com 5/25/26 Memorial Day - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57611 57611-concordialutheranhigh@intand.com 5/26/26 - 5/28/26 Semester Exams http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57612 57612-concordialutheranhigh@intand.com 5/29/26 Graduation Practice - NO SCHOOL http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57613 57613-concordialutheranhigh@intand.com 5/31/26 Graduation http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57614 57614-concordialutheranhigh@intand.com 6/1/26 - 6/3/26 Teacher In-Service http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=57615 57615-concordialutheranhigh@intand.com 7/4/26 Independence Day http://clhscadets.tandem.co/index.php?type=key_date&action=details&id=43663 43663-concordialutheranhigh@intand.com