Drafts of the 2012 - 2013 LAUSD calendar are now available here.
For single track schools, the first day of instruction is August 14, 2012, and the last day of instruction is June 4, 2013. Winter break is from December 17 to January 6, and Spring Break is the week of March 25.
The calendar is expected to be finalized on March 13, 2012. And then you can plan your vacations for next school year!