Need an calculation command/essbase function which calculates the number of days for a month

@CalcMgrDaysBetween

Summary

Need an calculation command/essbase function which calculates the number of days for a month

Content

Hi 

This is with regards to rolling budget in Planning. 

We are using rolling periods which get created as substitution variables when creating rules for rolling budget. 

And i need a function which calculates the number of days based on the month we are in. 

For example if &RollPer1 is "Apr" then it should be 30. 

And if &RollPer1 is "May" then it should be 31.

 

I have seen this function which serves the solution for my issue. That is @CalcMgrDaysBetween. But here we need to give fromdate and to date.