Hi,
thanks for the answer.
The reason of Vba and not a function is due to the fact that sometimes I
need to modify by hand the transit time. If the goods are late from the
supplier with 2 drivers I reduce the transit time.
So if there a function/formula in the cell, and I need to change the
result, it will cancel for the next use of the worksheet

One more question if I am allowed.
Is possibile to run automatically the sub when I insert the date from
A30 down to A60?

Thans and regards
Paul