I am not able to change the cell to h:mm, and i want them to add also.
my format is in such a way

Incoming 9.50 9.30 9.15 9.00 9.30 9.40
Lunch 0.40 0.40 0.40 1.00 0.30 -
Outgoing 6.20 5.50 5.45 5.35 6.00 1.30

i want to have total working hrs.
pls help me