The Modesto City Schools district and the union representing its teachers agreed Thursday on a contract that restores five days to the 2013-14 school calendar.
As part of more than $3 million in budget cuts agreed to last summer, the school year was shortened from 180 days to 175.
After state voters passed Proposition 30 in November, three of those furlough days were restored this year.
Thursdays tentative agreement also maintains the elementary school library program with certificated librarians; the district had proposed replacing librarians with teachers.
The new contract must be ratified by the Modesto Teachers Association members and school trustees, who are expected to vote on it April 29. Modesto City Schools is the regions largest school district, with more than 29,000 students.