San Dimas High School 2023-2024 Calendar https://sandimashigh.tandem.co/ Key dates for San Dimas High School. en-us 6/12/23 Summer School Starts https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50651 50651-sandimashigh@intand.com 6/19/23 Juneteenth Observed (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50652 50652-sandimashigh@intand.com 7/4/23 Independence Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50653 50653-sandimashigh@intand.com 7/14/23 Summer School Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50654 50654-sandimashigh@intand.com 8/14/23 - 8/15/23 School Check In https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50655 50655-sandimashigh@intand.com 8/21/23 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52924 52924-sandimashigh@intand.com 8/21/23 First Day of School https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50656 50656-sandimashigh@intand.com 8/28/23 Back to School Night https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50657 50657-sandimashigh@intand.com 9/1/23 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52925 52925-sandimashigh@intand.com 9/4/23 Labor Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50634 50634-sandimashigh@intand.com 9/5/23 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52926 52926-sandimashigh@intand.com 9/8/23 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52943 52943-sandimashigh@intand.com 9/19/23 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52927 52927-sandimashigh@intand.com 9/21/23 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52944 52944-sandimashigh@intand.com 9/22/23 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52945 52945-sandimashigh@intand.com 10/3/23 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52928 52928-sandimashigh@intand.com 10/6/23 Staff Development Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50658 50658-sandimashigh@intand.com 10/9/23 Indigenous Peoples Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50635 50635-sandimashigh@intand.com 10/13/23 First Quarter Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50659 50659-sandimashigh@intand.com 10/13/23 Renaissance Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52947 52947-sandimashigh@intand.com 10/17/23 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52929 52929-sandimashigh@intand.com 10/19/23 Great Shakeout https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52948 52948-sandimashigh@intand.com 10/26/23 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50660 50660-sandimashigh@intand.com 10/26/23 Parent Conferences https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50661 50661-sandimashigh@intand.com 10/27/23 No School https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50662 50662-sandimashigh@intand.com 10/31/23 Halloween https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50636 50636-sandimashigh@intand.com 11/3/23 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52949 52949-sandimashigh@intand.com 11/5/23 Daylight Saving Time Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50638 50638-sandimashigh@intand.com 11/7/23 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52930 52930-sandimashigh@intand.com 11/10/23 Veteran's Day Observed (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50637 50637-sandimashigh@intand.com 11/20/23 - 11/24/23 Thanksgiving Break (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50663 50663-sandimashigh@intand.com 11/23/23 Thanksgiving https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50639 50639-sandimashigh@intand.com 12/5/23 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52931 52931-sandimashigh@intand.com 12/19/23 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52932 52932-sandimashigh@intand.com 12/21/23 Finals-Block Schedule (Periods 1, 2, 3, 0) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50664 50664-sandimashigh@intand.com 12/21/23 - 12/22/23 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50666 50666-sandimashigh@intand.com 12/22/23 Finals-Block Schedule (Periods 4, 6, 7, 8) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50665 50665-sandimashigh@intand.com 12/22/23 Second Quarter Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50667 50667-sandimashigh@intand.com 12/25/23 Christmas Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50640 50640-sandimashigh@intand.com 12/25/23 - 12/29/23 Winter Break (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50668 50668-sandimashigh@intand.com 1/1/24 New Year's Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50641 50641-sandimashigh@intand.com 1/1/24 - 1/5/24 Winter Break (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50682 50682-sandimashigh@intand.com 1/9/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52933 52933-sandimashigh@intand.com 1/15/24 Martin Luther King Jr. Day Observed (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50642 50642-sandimashigh@intand.com 1/23/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52934 52934-sandimashigh@intand.com 1/26/24 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52950 52950-sandimashigh@intand.com 2/6/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52935 52935-sandimashigh@intand.com 2/8/24 Future Saints Night/Open House https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52951 52951-sandimashigh@intand.com 2/9/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52952 52952-sandimashigh@intand.com 2/12/24 Lincoln's B-Day Observed (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50669 50669-sandimashigh@intand.com 2/14/24 Valentine's Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50643 50643-sandimashigh@intand.com 2/19/24 President's Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50644 50644-sandimashigh@intand.com 2/20/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52936 52936-sandimashigh@intand.com 2/28/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52953 52953-sandimashigh@intand.com 3/1/24 Staff Development Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50670 50670-sandimashigh@intand.com 3/5/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52937 52937-sandimashigh@intand.com 3/10/24 Daylight Saving Time Begins https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50645 50645-sandimashigh@intand.com 3/17/24 St. Patrick's Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50646 50646-sandimashigh@intand.com 3/19/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52938 52938-sandimashigh@intand.com 3/22/24 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52954 52954-sandimashigh@intand.com 3/22/24 Third Quarter Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50671 50671-sandimashigh@intand.com 3/31/24 Easter https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50647 50647-sandimashigh@intand.com 4/1/24 - 4/5/24 Spring Break (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50672 50672-sandimashigh@intand.com 4/9/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52939 52939-sandimashigh@intand.com 5/1/24 National Signing Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50673 50673-sandimashigh@intand.com 5/5/24 Cinco De Mayo https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50648 50648-sandimashigh@intand.com 5/10/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52940 52940-sandimashigh@intand.com 5/21/24 Renaissance Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52941 52941-sandimashigh@intand.com 5/22/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52955 52955-sandimashigh@intand.com 5/22/24 - 5/23/24 SDCP Presentations https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52958 52958-sandimashigh@intand.com 5/23/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52956 52956-sandimashigh@intand.com 5/24/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52957 52957-sandimashigh@intand.com 5/27/24 Memorial Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50649 50649-sandimashigh@intand.com 5/31/24 Senior Check Out https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52959 52959-sandimashigh@intand.com 5/31/24 Senior Check Out https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50674 50674-sandimashigh@intand.com 6/4/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=52942 52942-sandimashigh@intand.com 6/5/24 Block Schedule (Periods 1, 2, 3, 0) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50676 50676-sandimashigh@intand.com 6/5/24 - 6/6/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50675 50675-sandimashigh@intand.com 6/6/24 Block Schedule (Periods 4, 6, 7, 8) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50677 50677-sandimashigh@intand.com 6/6/24 Fourth Quarter Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50678 50678-sandimashigh@intand.com 6/10/24 Summer School Begins https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50679 50679-sandimashigh@intand.com 6/19/24 Juneteenth-No School https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59059 59059-sandimashigh@intand.com 7/4/24 Independence Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=50680 50680-sandimashigh@intand.com 7/5/24 No School Today https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59060 59060-sandimashigh@intand.com 7/12/24 Summer School Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59058 59058-sandimashigh@intand.com 3/21/25 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59788 59788-sandimashigh@intand.com