It officially started on May 15 , 2007 in the eastern Pacific , designated as the area east of 140 Â W , and on June 1 2007 in the central Pacific , which is between the International Date Line and 140 Â W , and lasted until November 30 , 2007 . It officially started on May 15 , 2007 in the eastern Pacific , designated as the area east of 140 Â W , and on June 1 , 2007 in the central Pacific , which is between the International Date Line and 140 Â W , and lasted until November 30 , 2007 .