San Dimas High School 2024-2025 Calendar https://sandimashigh.tandem.co/ Key dates for San Dimas High School. en-us 8/12/24 - 8/13/24 School Check In https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56620 56620-sandimashigh@intand.com 8/19/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59062 59062-sandimashigh@intand.com 8/19/24 First Day of School https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56621 56621-sandimashigh@intand.com 8/26/24 Back to School Night https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56622 56622-sandimashigh@intand.com 8/30/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56623 56623-sandimashigh@intand.com 9/2/24 Labor Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56602 56602-sandimashigh@intand.com 9/3/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59063 59063-sandimashigh@intand.com 9/13/24 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56624 56624-sandimashigh@intand.com 9/17/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59064 59064-sandimashigh@intand.com 9/27/24 Renaissance Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59079 59079-sandimashigh@intand.com 10/1/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59065 59065-sandimashigh@intand.com 10/4/24 Staff Development Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56625 56625-sandimashigh@intand.com 10/11/24 First Quarter Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56626 56626-sandimashigh@intand.com 10/14/24 Indigenous Peoples Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56603 56603-sandimashigh@intand.com 10/15/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59067 59067-sandimashigh@intand.com 10/17/24 Great Shakeout https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59762 59762-sandimashigh@intand.com 10/17/24 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56627 56627-sandimashigh@intand.com 10/18/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56628 56628-sandimashigh@intand.com 10/30/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59114 59114-sandimashigh@intand.com 10/30/24 Parent Conferences https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59113 59113-sandimashigh@intand.com 10/31/24 Halloween https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56604 56604-sandimashigh@intand.com 10/31/24 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59080 59080-sandimashigh@intand.com 11/1/24 No School https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59086 59086-sandimashigh@intand.com 11/3/24 Daylight Saving Time Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56606 56606-sandimashigh@intand.com 11/5/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59066 59066-sandimashigh@intand.com 11/11/24 Veteran's Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56605 56605-sandimashigh@intand.com 11/19/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59068 59068-sandimashigh@intand.com 11/25/24 - 11/29/24 Thanksgiving Break (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59116 59116-sandimashigh@intand.com 11/28/24 Thanksgiving https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56607 56607-sandimashigh@intand.com 12/3/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59069 59069-sandimashigh@intand.com 12/17/24 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59070 59070-sandimashigh@intand.com 12/19/24 Finals-Block Schedule (Periods 1, 2, 3, 0) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59082 59082-sandimashigh@intand.com 12/19/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59084 59084-sandimashigh@intand.com 12/20/24 Finals-Block Schedule (Periods 4, 6, 7, 8) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59083 59083-sandimashigh@intand.com 12/20/24 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59085 59085-sandimashigh@intand.com 12/23/24 - 12/27/24 Winter Break (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59117 59117-sandimashigh@intand.com 12/25/24 Christmas Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56608 56608-sandimashigh@intand.com 12/30/24 - 1/3/25 Winter Break (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59118 59118-sandimashigh@intand.com 1/1/25 New Year's Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56609 56609-sandimashigh@intand.com 1/7/25 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59071 59071-sandimashigh@intand.com 1/20/25 Martin Luther King Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56610 56610-sandimashigh@intand.com 1/21/25 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59072 59072-sandimashigh@intand.com 1/24/25 Rally Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59081 59081-sandimashigh@intand.com 2/4/25 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59073 59073-sandimashigh@intand.com 2/10/25 Lincoln's B-Day Observed (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59777 59777-sandimashigh@intand.com 2/14/25 Valentine's Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56611 56611-sandimashigh@intand.com 2/17/25 President's Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56612 56612-sandimashigh@intand.com 2/18/25 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59074 59074-sandimashigh@intand.com 2/25/25 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59128 59128-sandimashigh@intand.com 3/4/25 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59075 59075-sandimashigh@intand.com 3/6/25 Future Saints Night/Open House https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59782 59782-sandimashigh@intand.com 3/6/25 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59783 59783-sandimashigh@intand.com 3/7/25 No School https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59784 59784-sandimashigh@intand.com 3/9/25 Daylight Saving Time Begins https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56613 56613-sandimashigh@intand.com 3/17/25 St. Patrick's Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56614 56614-sandimashigh@intand.com 3/18/25 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59076 59076-sandimashigh@intand.com 3/21/25 Third Quarter Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59790 59790-sandimashigh@intand.com 3/31/25 - 4/4/25 Spring Break (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59858 59858-sandimashigh@intand.com 4/8/25 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59077 59077-sandimashigh@intand.com 4/20/25 Easter https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56615 56615-sandimashigh@intand.com 5/1/25 National Signing Day https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59892 59892-sandimashigh@intand.com 5/5/25 Cinco De Mayo https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56616 56616-sandimashigh@intand.com 5/9/25 Collaboration Day (2:25pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59078 59078-sandimashigh@intand.com 5/20/25 Renaissance Schedule https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59900 59900-sandimashigh@intand.com 5/21/25 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59899 59899-sandimashigh@intand.com 5/21/25 SDCP Presentations https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59893 59893-sandimashigh@intand.com 5/22/25 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59897 59897-sandimashigh@intand.com 5/22/25 SDCP Presentations https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59898 59898-sandimashigh@intand.com 5/23/25 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59895 59895-sandimashigh@intand.com 5/26/25 Memorial Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56617 56617-sandimashigh@intand.com 5/30/25 Senior Check Out https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59896 59896-sandimashigh@intand.com 6/4/25 Block Schedule (Periods 1, 2, 3, 0) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59906 59906-sandimashigh@intand.com 6/4/25 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59907 59907-sandimashigh@intand.com 6/5/25 Block Schedule (Periods 4 , 6, 7, 8) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59909 59909-sandimashigh@intand.com 6/5/25 Fourth Quarter Ends https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59910 59910-sandimashigh@intand.com 6/5/25 Minimum Day (12:59pm Release) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59908 59908-sandimashigh@intand.com 6/9/25 Summer School Begins https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59913 59913-sandimashigh@intand.com 6/19/25 Juneteenth (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=59914 59914-sandimashigh@intand.com 7/4/25 Independence Day (No School) https://sandimashigh.tandem.co/index.php?type=key_date&action=details&id=56618 56618-sandimashigh@intand.com