CREATE TABLE table_22292 ("Departure" TEXT, "Going to" TEXT, "Calling at" TEXT, "Arrival" TEXT, "Operator" TEXT)

What was the departure time of the train that arrived at 21.26?
SELECT "Departure" FROM table_22292 WHERE "Arrival" = '21.26'
SELECT "Departure" FROM "table_22292" WHERE "Arrival" = '21.26'