The absolute deadline for eating chametz is the morning before Passover, it is forbidden to eat chametz until the close of the festival in eight days. Please note: just for this year; we can keep some chometz for our shabbos meal. Ideally a Pita bread, the rest shall be kosher for pesach food.
By this time, the chametz should be burned, and there should be no chametz remaining in your possession (except for what you will eat during your shabbos meal). Please note: just for this year, we burn the chometz on Friday, although you can still keep some chometz for your shabbos meals and get rid of them on Shabbos morning