Lack of NOW() in FIM

I have a situation where I need to flow the Current Date and Time. I know there is not a function in FIM to do this like the NOW() function did in ILM. There is a Create Date attribute in the FIM Portal that I can possibly use but can't seem to get it to show in the list of attributes in the Source picker dropdown. Has anyone had to flow current date and time and figured out a slick way to do it? Thanks