Compare Date Attributes to 31.12.9999

Hi.

I try to create a formular that compares a date InfoObject to 31.12.9999 to do some special calculation on it. I created a formular variable and to a calculation like this in it: Z_DATE_VAR == 99991231. But it failed... I think the reason for this is that dates are handled like numbers starting from 01.01.1900 internally. So what i the best way to handly this without using ABAP (like to have this as backup plan ).

Can I compare the date to 3.652.060 and have a correct result everytime?

Cheers,

Nils