what will be an unusual commuting time?

point A Home point B Work Number Dept time Arial time Total time 700 730 30 2 715 750 30 3 700 715 15 703 720 23 700 720 20 6 740 810 30 700 715 15 700 730 30 9 710 740 30 10 700 750 50 11 700 720 20 12 715 730 15 13 800 820 20 14 700 715 15 15 700 720 20 16 703 718 21 17 830 850 20 20 18 740 810 30 19 700 730 30 10 20 700 720 20 21 800 830 30