CREATE TABLE table_11696 ("Round" TEXT, "Date" TEXT, "Opponent" TEXT, "Venue" TEXT, "Result" TEXT, "Attendance" TEXT)

When was Leyton Orient an away team?
SELECT "Date" FROM table_11696 WHERE "Opponent" = 'leyton orient' AND "Venue" = 'away'
SELECT "Date" FROM "table_11696" WHERE "Opponent" = 'leyton orient' AND "Venue" = 'away'