CREATE TABLE table_name_66 (date VARCHAR, meet VARCHAR, time VARCHAR)

On what Date was the Meet of 2007 Pan American Games with a Time of 1:07.78?
SELECT date FROM table_name_66 WHERE meet = "2007 pan american games" AND time = "1:07.78"
SELECT "date" FROM "table_name_66" WHERE "1:07.78" = "time" AND "2007 pan american games" = "meet"