The red calendar you received in your back to school packet was printed before late start days were established for the district. In addition, many Chapman school events are not listed in the red calendar, because dates for those events were not established before the print deadline. Friends of Chapman maintains its own calendar with other important school-specific dates like holidays and late starts. It does not have grading period information or district-wide board meeting info.
If you’d like add/sync the Friends of Chapman calendar, here is the link:
https://calendar.google.com/calendar/embed?src=chapmanschoolpta%40gmail.com&ctz=America/Los_Angeles
If you’d like the add the district calendar or aren’t sure how to sync a calendar, here is the district link and instructions.