Ned help in BO3.1 line graphs

Hi,

I need help developing a line graph in BO 3.1 webi version. I need to show the timestamps (Start-time and End-time) of the jobs run on a particular day in the form of 2 lines on the graph.

However, I am facing issue with the format of the timestamps data. They are currently in (HH:mm:ss AM/PM) format. As you know the line graphs expects a measure on Y-axis,  I am facing issues to covert the time stamps objects to measure both in universe and Webi.

The database is Oracle.

Any inputs on how to do a work around is really appreciated.

Thanks,

Venkat