Sachem Central School District 2022-2023 Calendar https://sachemcentral.tandem.co/ Key dates for Sachem Central School District. en-us 9/5/22 Labor Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=500 500-sachemcentral@intand.com 10/10/22 Columbus Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=501 501-sachemcentral@intand.com 10/31/22 Halloween https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=502 502-sachemcentral@intand.com 11/6/22 Daylight Saving Time Ends https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=504 504-sachemcentral@intand.com 11/11/22 Veteran's Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=503 503-sachemcentral@intand.com 11/24/22 Thanksgiving https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=505 505-sachemcentral@intand.com 12/25/22 Christmas Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=506 506-sachemcentral@intand.com 1/1/23 New Year's Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=507 507-sachemcentral@intand.com 1/16/23 Martin Luther King Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=508 508-sachemcentral@intand.com 2/14/23 Valentine's Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=509 509-sachemcentral@intand.com 2/20/23 President's Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=510 510-sachemcentral@intand.com 3/12/23 Daylight Saving Time Begins https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=511 511-sachemcentral@intand.com 3/17/23 St. Patrick's Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=512 512-sachemcentral@intand.com 4/9/23 Easter https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=513 513-sachemcentral@intand.com 5/5/23 Cinco De Mayo https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=514 514-sachemcentral@intand.com 5/29/23 Memorial Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=515 515-sachemcentral@intand.com 7/4/23 Independence Day https://sachemcentral.tandem.co/index.php?type=key_date&action=details&id=516 516-sachemcentral@intand.com