How long was Catherine Howard married Henry viii?

Catherine of Aragon 1509-1533, Anne Boelyn 1533-1536, Jane Seymour 1536-1537, Anne of Cleves 1540 Jan-July, Kathryn Howard 1540-1542, Katherine Parr 1543-1547. So roughly 43 years total, give or take a few months, to a year.