Line chart using hours

Nice day.

I want to make a line graph with the following information:

I want the weeks to be on the axis part and the average time in quality and SET-UP to be in lines.

However to pass the visualization to line graph the values are automatically put in count (As I read it is because it is in hh:nn format)

And the graph ends up looking as follows:

There is some way where the data is not counted and you can see using the ekl lines