We want to use OTBI to get the date and time the purchase order was opened.

Hello.

We want to use OTBI to get the date and time the purchase order was opened.
Now, we are using Communication Date column, but it only has the day and not the time data.
Is there a column in Purchasing Real Time where I can get the date and time the purchase order was opened?
If Purchasing Real Time does not have the column I want, I would like to know if there is another subject area where it can be combined with Purchasing Real Time.

Thanks.