Standard Time Variable for QTD

Experts -

I have a requirement to derive Quarter-to-Date and Year-to-Date values in a query based on what the user enters for the Fiscal Year/Period (using 0P_FPER).  We also need to show the Prior Year values for QTD and YTD.  The fiscal year matches the calendar year in this instance.

If the user enters a value of Nov 2013, the following should be returned:

• QTD:  Oct-Nov 2013
• QTD - Prior Year: Oct-Nov 2012
• YTD:  Jan-Nov 2013 (0I_BA104)
• YTD -  Prior Year: Jan-Nov 2012 (0I_BA106)

For YTD, we are using standard variables to achieve this requirement (noted above).

My question is - are there standard variables that work with 0P_FPER for the Quarter-to-date requirement as well? Or does this require a user exit?

Thanks,

Katie