It will be a short summer for Petaluma City Schools students.

According to the 2018-2019 school calendar released last week by the school district, school will begin for students on Aug. 15. Teachers start even earlier, with elementary teachers beginning on Aug. 9 and secondary teachers on Aug. 10.

School will end on May 31, giving students 180 days of classroom instruction. Teachers will work 186 days.

Fall break will be Nov. 19 through Nov. 23.

The first semester will end Dec. 21 with winter break running Dec. 24-Jan. 7. Spring break runs March 18-22.

School for Mary Collins at Cherry Valley and Penngrove, two district schools on year-round school calendars, begins on July 18.

Those two schools will also have a 180-day school year ending May 31.