Irvine Unified 2021-2022 Calendar https://irvineunified.tandem.co/ Key dates for Irvine Unified. en-us 8/16/21 Staff Development Day (TK-12) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=408 408-irvineunified@intand.com 8/19/21 First Day for Traditional & Year Round Students (TK-12) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=409 409-irvineunified@intand.com 9/6/21 Labor Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=326 326-irvineunified@intand.com 10/11/21 Columbus Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=327 327-irvineunified@intand.com 10/11/21 Staff Development Day/Student Holiday (TK-12) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=410 410-irvineunified@intand.com 10/19/21 Year-Round Schools https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=420 420-irvineunified@intand.com 10/31/21 Halloween https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=328 328-irvineunified@intand.com 11/7/21 Daylight Saving Time Ends https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=330 330-irvineunified@intand.com 11/11/21 Veteran's Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=329 329-irvineunified@intand.com 11/12/21 Semester (all high schools) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=422 422-irvineunified@intand.com 11/12/21 Trimester (elementary/middle school schools) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=428 428-irvineunified@intand.com 11/24/21 Lincoln’s Day (moved to this date) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=411 411-irvineunified@intand.com 11/25/21 Thanksgiving https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=331 331-irvineunified@intand.com 11/25/21 - 11/26/21 Thanksgiving Holiday https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=412 412-irvineunified@intand.com 12/20/21 First Day of Winter Recess https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=413 413-irvineunified@intand.com 12/25/21 Christmas Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=332 332-irvineunified@intand.com 12/31/21 Last day of Winter Recess https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=414 414-irvineunified@intand.com 1/1/22 New Year's Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=333 333-irvineunified@intand.com 1/3/22 Classes resume for Traditional & Year Round Students (TK-12) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=415 415-irvineunified@intand.com 1/13/22 Semester (all high schools) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=423 423-irvineunified@intand.com 1/17/22 Martin Luther King Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=334 334-irvineunified@intand.com 1/18/22 Teacher/Student Holiday (TK-12) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=416 416-irvineunified@intand.com 2/14/22 Valentine's Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=335 335-irvineunified@intand.com 2/17/22 Year-Round Schools https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=421 421-irvineunified@intand.com 2/18/22 Staff Development Day/Student Holiday (TK-12) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=417 417-irvineunified@intand.com 2/21/22 President's Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=336 336-irvineunified@intand.com 2/25/22 Semester (all high schools) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=424 424-irvineunified@intand.com 2/25/22 Trimester (elementary/middle school schools) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=427 427-irvineunified@intand.com 3/13/22 Daylight Saving Time Begins https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=337 337-irvineunified@intand.com 3/17/22 St. Patrick's Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=338 338-irvineunified@intand.com 4/4/22 - 4/8/22 Spring Recess for Traditional & Year Round Students https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=418 418-irvineunified@intand.com 4/17/22 Easter https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=339 339-irvineunified@intand.com 5/5/22 Cinco De Mayo https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=340 340-irvineunified@intand.com 5/30/22 Memorial Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=341 341-irvineunified@intand.com 6/3/22 Last Day of School https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=419 419-irvineunified@intand.com 6/3/22 Semester (all high schools) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=425 425-irvineunified@intand.com 6/3/22 Trimester (elementary/middle school schools) https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=426 426-irvineunified@intand.com 7/4/22 Independence Day https://irvineunified.tandem.co/index.php?type=key_date&action=details&id=342 342-irvineunified@intand.com