Yes. Those years are correct.
While the rest of us are living in the present, school administrators are already beginning to look ahead to next school year. To do so, they need a calendar. The Dexter Board of Education reviewed and accepted this draft of the 2018-19 school year.
For you long-range planners, here it is.
You can always check calendars for specific schools and ongoing updates on the Dexter Community Schools website.