CREATE TABLE table_60753 ("Date" TEXT, "Time" TEXT, "Competition" TEXT, "Opponent" TEXT, "Ground" TEXT, "Score" TEXT)

What is the ground of the tim trophy competition, which had a time of 23:00 cet?
SELECT "Ground" FROM table_60753 WHERE "Competition" = 'tim trophy' AND "Time" = '23:00 cet'
SELECT "Ground" FROM "table_60753" WHERE "Competition" = 'tim trophy' AND "Time" = '23:00 cet'