San Mateo Union High 2022-2023 Calendar https://sanmateounionhigh.tandem.co/ Key dates for San Mateo Union High. en-us 8/8/22 Professional Development Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=241 241-sanmateounionhigh@intand.com 8/9/22 Workshop/Scheduling Days for All Teachers https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=242 242-sanmateounionhigh@intand.com 8/10/22 First Day of School https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=243 243-sanmateounionhigh@intand.com 9/1/22 Back to School https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=244 244-sanmateounionhigh@intand.com 9/2/22 Minimum Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=245 245-sanmateounionhigh@intand.com 9/5/22 Labor Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=224 224-sanmateounionhigh@intand.com 9/16/22 Six-Week Marking Period https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=246 246-sanmateounionhigh@intand.com 10/3/22 Professional Development Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=247 247-sanmateounionhigh@intand.com 10/10/22 Columbus Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=225 225-sanmateounionhigh@intand.com 10/28/22 Six-Week Marking Period https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=248 248-sanmateounionhigh@intand.com 10/31/22 Halloween https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=226 226-sanmateounionhigh@intand.com 11/6/22 Daylight Saving Time Ends https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=228 228-sanmateounionhigh@intand.com 11/11/22 Veteran's Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=227 227-sanmateounionhigh@intand.com 11/23/22 Staff Recess https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=249 249-sanmateounionhigh@intand.com 11/24/22 Thanksgiving https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=229 229-sanmateounionhigh@intand.com 11/24/22 - 11/25/22 Thanksgiving Days https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=250 250-sanmateounionhigh@intand.com 12/14/22 - 12/16/22 Minimum Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=251 251-sanmateounionhigh@intand.com 12/16/22 Six-Week Marking Period https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=252 252-sanmateounionhigh@intand.com 12/19/22 - 1/3/23 Winter Recess https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=253 253-sanmateounionhigh@intand.com 12/25/22 Christmas Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=230 230-sanmateounionhigh@intand.com 1/1/23 New Year's Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=231 231-sanmateounionhigh@intand.com 1/16/23 Martin Luther King Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=232 232-sanmateounionhigh@intand.com 1/30/23 - 1/31/23 Professional Development Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=254 254-sanmateounionhigh@intand.com 2/10/23 Six-Week Marking Period https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=255 255-sanmateounionhigh@intand.com 2/14/23 Valentine's Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=233 233-sanmateounionhigh@intand.com 2/20/23 President's Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=234 234-sanmateounionhigh@intand.com 3/9/23 Open House https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=257 257-sanmateounionhigh@intand.com 3/10/23 Minimum Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=258 258-sanmateounionhigh@intand.com 3/12/23 Daylight Saving Time Begins https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=235 235-sanmateounionhigh@intand.com 3/17/23 St. Patrick's Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=236 236-sanmateounionhigh@intand.com 3/24/23 Six-Week Marking Period https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=256 256-sanmateounionhigh@intand.com 3/27/23 - 3/31/23 Spring Recess https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=259 259-sanmateounionhigh@intand.com 4/9/23 Easter https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=237 237-sanmateounionhigh@intand.com 5/5/23 Cinco De Mayo https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=238 238-sanmateounionhigh@intand.com 5/23/23 - 5/25/23 Minimum Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=260 260-sanmateounionhigh@intand.com 5/25/23 Last Day of School https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=261 261-sanmateounionhigh@intand.com 5/26/23 Workshop/Scheduling Days for All Teachers https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=262 262-sanmateounionhigh@intand.com 5/29/23 Memorial Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=239 239-sanmateounionhigh@intand.com 7/4/23 Independence Day https://sanmateounionhigh.tandem.co/index.php?type=key_date&action=details&id=240 240-sanmateounionhigh@intand.com