February 11: pitchers and catchers report (Tue)
February 12: first workout (Wed)
February 16: position players report (Sun)
February 17: first full-squad workout (Mon)
February 22: first spring game (Sat)
March 21: last spring game (Sat)
March 22: at River Cats (Sun)
March 23-24: Bay Bridge Series (Mon-Tue)
March 26: Opening Day in LA (Thu)
April 3: Home Opener vs. Dodgers (Fri)
These are from Maria Guardado's article on the website.
Here's the link to the printable regular-season schedules.
--M.